KR20230069075A - A lens moving apparatus, camera module and optical instrument including the same - Google Patents

Abstract

According to an embodiment, the present invention comprises: a housing; a bobbin disposed within the housing; a magnet including a first magnet disposed on a first side part of the housing, a second magnet disposed on a second side part of the housing located opposite the first side part, and a third magnet disposed on a third side part of the housing located between the first side part and the second side part; a weight balance member disposed on a fourth side part of the housing located opposite the third side part; a first coil including a first coil unit disposed on a first side surface of the bobbin facing the first side part of the housing and a second coil unit disposed on a second side surface of the bobbin facing the second side part of the housing; and a second coil including a third coil unit facing the first magnet in an optical axis direction, a fourth coil unit facing the second magnet in the optical axis direction, and a fifth coil unit facing the third magnet in the optical axis direction, wherein when viewed from the top, the length of the fifth coil unit is greater than the lengths of each of the third coil unit and the fourth coil unit. According to an embodiment, it is possible to reduce magnetic field interference between magnets included in two adjacent lens-driving devices mounted on a dual camera module.

Description

Lens driving device, camera module and optical device including the same

The embodiment relates to a lens driving device and a camera module and optical device including the same.

Since it is difficult to apply the technology of a voice coil motor (VCM) used in a conventional camera module to a camera module for ultra-small size and low power consumption, related research has been actively conducted.

In the case of a camera module mounted on a small electronic product such as a smartphone, the camera module may be frequently shocked during use, and the camera module may be slightly shaken due to a user's hand shaking during shooting. In view of this point, recently, a technique for additionally installing an anti-shake means to a camera module has been developed.

The embodiment reduces magnetic field interference between magnets included in two adjacent lens driving devices mounted on a dual camera module, and balances electromagnetic force in the X-axis direction and Y-axis direction for performing the OIS function. Provided are a lens driving device capable of fitting a lens and reducing current consumption by reducing the weight of an OIS movable part, and a camera module and an optical device including the same.

A lens driving device according to an embodiment includes a housing; a bobbin disposed within the housing; A first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing opposite the first side, and a magnet disposed between the first side and the second side. a magnet including a third magnet disposed on a third side of the housing; a weight balance member disposed on a fourth side of the housing opposite to the third side; A first coil unit disposed on a first side of the bobbin facing the first side of the housing and a second coil unit disposed on a second side of the bobbin facing the second side of the housing. a first coil; and a third coil unit facing the first magnet in the optical axis direction, a fourth coil unit facing the second magnet in the optical axis direction, and a fifth coil unit facing the third magnet in the optical axis direction. and a second coil which, when viewed from the top, has a length of the fifth coil unit greater than that of each of the third and fourth coil units.

Each of the third to fifth coil units may include a line having a plurality of winding numbers, and the number of winding of the fifth coil unit may be greater than the number of winding of each of the third coil unit and the fourth coil unit. .

Each of the third to fifth coil units may include a line having a plurality of turns, and a width of the line of the fifth coil unit may be smaller than a width of the line of the third coil unit.

A width of the line of the third coil unit may be the same as a width of the line of the fourth coil unit.

When viewed from above, the fifth coil unit may have the same width as the third coil unit.

Each of the third to fifth coil units includes a first layer, a second layer disposed on the first layer, and lines having a plurality of winding numbers formed on each of the first layer and the second side. A width of the line of each of the first layer and the second layer of the fifth coil unit may be smaller than a width of the line of each of the first layer and the second layer of the third coil unit.

Each of the third to fifth coil units may include at least one via connecting the first layer and the second layer. The first coil unit and the second coil unit may be connected in series. A length of the third magnet may be greater than each of the first and second magnets.

The lens driving device may include a sensing magnet disposed on a third side of the bobbin facing the third side of the housing; and a first position sensor sensing the sensing magnet.

A balancing member disposed on a fourth side of the bobbin facing the fourth side of the housing may be included.

The lens driving device includes an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and a support member coupled to the upper elastic member and supporting the housing.

The support member may be disposed at each of the four corner portions of the housing.

The lens driving device includes a base disposed below the housing; and a circuit member disposed on the base, and the second coil may be formed on the circuit member.

The lens driving device includes a second position sensor disposed on the base and sensing displacement of the housing, the second position sensor overlapping one of the first and second magnets in the optical axis direction. A first sensor and a second sensor overlapping the third magnet in the optical axis direction may be included.

The weight balancing member may not overlap the second coil in the optical axis direction.

Due to the interaction between the second coil and the magnet, the housing may move in a direction perpendicular to the optical axis direction.

A lens driving device according to another embodiment includes a housing; a bobbin disposed within the housing; A first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing opposite the first side, and a magnet disposed between the first side and the second side. a magnet including a third magnet disposed on a third side of the housing; a weight balance member disposed on a fourth side of the housing opposite to the third side; a first coil disposed on the bobbin and including a first coil unit facing the first magnet and a second coil unit facing the second magnet; and a circuit member disposed under the housing and having a second coil formed thereon, wherein the second coil includes a third coil unit facing the first magnet, a fourth coil unit facing the second magnet, and a circuit member facing the first magnet. A fifth coil unit facing the third magnet is included, and the number of turns of the fifth coil unit is greater than the number of turns of the third coil unit.

Each of the third to fifth coil units may include a line, and a width of the line of the fifth coil unit may be smaller than a width of the line of the third coil unit.

The embodiment reduces magnetic field interference between magnets included in two adjacent lens driving devices mounted on a dual camera module, and balances electromagnetic force in the X-axis direction and Y-axis direction for performing the OIS function. and reduce the weight of the OIS movable part to reduce current consumption.

1 is a perspective view of a lens driving device according to an embodiment.
FIG. 2 is an exploded view of the lens driving device of FIG. 1 .
3 is a plan view of the lens driving device excluding the cover member.
4A is an exploded perspective view of a bobbin, a first coil unit, a second coil unit, and a sensing magnet.
4B is a perspective view of a bobbin, a first coil unit, a second coil unit, and a sensing magnet.
5A is a perspective view of a housing, first to third magnets, and a dummy member.
5B is a perspective view of a housing, a first position sensor, and a circuit board.
6 is a plan view of an upper elastic member.
7 is a view for explaining an electrical connection relationship between an upper elastic member, a first position sensor, and a support member.
8 is a bottom view of a lower elastic member and a housing;
9 shows an exploded perspective view of a base, a second coil, a second position sensor, and a circuit board.
10A is a cross-sectional view of the lens driving device in the AB direction of FIG. 3 .
FIG. 10B is a cross-sectional view of the lens driving device in the CD direction of FIG. 3 .
10C is a cross-sectional view of the lens driving device in the EF direction of FIG. 3 .
10D is a cross-sectional view of the lens driving device in the GH direction of FIG. 3 .
FIG. 11 is a plan view of the second coil of FIG. 9 .
12 shows a perspective view of first to third magnets, a dummy member, and third to fifth coil units.
13 is a side view of the components shown in FIG. 12;
14 is a plan view of the components shown in FIG. 12;
15 shows first to third magnets according to another embodiment.
16A shows first to third magnets according to another embodiment.
FIG. 16B is a plan view of the first to third magnets and the third to fifth coil units of FIG. 16A.
FIG. 16C is a cross-sectional view in the CD direction of the lens driving device including the third magnet of FIG. 16A.
16D shows lines of magnetic force of the third magnet of FIG. 16A for the fifth coil unit and lines of magnetic force of the first magnet for the third coil unit.
17A is a cross-sectional view of a first dotted line portion of the third coil unit of FIG. 11 .
17B shows first and second vias of the third coil unit.
FIG. 18A is a cross-sectional view of a second dotted line portion of the fifth coil unit of FIG. 11 .
18B shows first and second vias of a fifth coil unit.
19 is an exploded perspective view of a camera module according to an embodiment.
20 shows a perspective view of a camera module according to another embodiment.
21 is a perspective view of a portable terminal according to an embodiment.
FIG. 22 shows a configuration diagram of the portable terminal shown in FIG. 18 .

Hereinafter, embodiments of the present invention that can specifically realize the above object will be described with reference to the accompanying drawings.

In the description of the embodiment, in the case where it is described as being formed on "on or under" of each element, the upper (upper) or lower (on or under) Both elements formed by directly contacting each other or by indirectly placing one or more other elements between the two elements are included. In addition, when expressed as "on or under", it may include the meaning of not only the upward direction but also the downward direction based on one element.

In addition, relational terms such as “first” and “second”, “upper/upper/upper” and “lower/lower/lower” used below refer to any physical or logical relationship or sequence between such entities or elements. may be used only to distinguish one entity or element from another entity or element, without necessarily requiring or implying that Also, like reference numbers indicate like elements throughout the description of the drawings.

In addition, terms such as "comprise", "comprise", or "have" described above mean that the corresponding component may be inherent unless otherwise stated, excluding other components. It should be construed as being able to further include other components. In addition, terms such as “corresponding” described above may include at least one of “opposite” or “overlapping” meanings.

For convenience of description, the lens driving device according to the embodiment is described using a Cartesian coordinate system (x, y, z), but it may be described using another coordinate system, and the embodiment is not limited thereto. In each figure, the x-axis and the y-axis mean directions perpendicular to the z-axis, which is the optical axis direction, and the z-axis direction, which is the optical axis direction, is referred to as a 'first direction', and the x-axis direction is referred to as a 'second direction', and y The axial direction may be referred to as a 'third direction'. Also, the optical axis direction may be defined as an optical axis direction of a lens coupled to the lens driving device.

The 'hand shake correction function' applied to small camera modules of mobile devices such as smartphones or tablet PCs moves the lens in a direction perpendicular to the optical axis direction to offset vibration (or movement) caused by the user's hand shake, or It may be a function of tilting the lens based on .

In addition, the 'auto focusing function' may be a function of automatically focusing on a subject by moving a lens in an optical axis direction according to a distance of the subject in order to obtain a clear image of the subject in the image sensor.

Hereinafter, a lens driving device may mean a "Voice Coil Motor (VCM)", a "lens driving motor", or an actuator, and may be expressed as an alternative thereto.

1 is a perspective view of a lens driving device 100 according to an embodiment, FIG. 2 is an exploded view of the lens driving device 100 of FIG. 1, and FIG. 3 is a lens driving device 100 excluding the cover member 300. it is flat

1 to 3, the lens driving device 100 includes a bobbin 110, a first coil 120, a housing 140, a first magnet 130-1, and a second magnet 130-2. , a third magnet 130-3, an upper elastic member 150, a lower elastic member 160, and a second coil 230 may be included.

The lens driving device 100 may further include a dummy member 135 .

The lens driving apparatus 100 may further include at least one of a base 210 , a support member 220 , and a circuit board 250 .

In addition, the lens driving device 100 may further include a circuit board 190 and a first position sensor 170 for AF feedback driving.

In addition, the lens driving device 100 may include a sensing magnet 180 to sense the magnetic force of the first position sensor 170 . In addition, the lens driving device 100 may further include a balancing magnet 185 for attenuating the influence of the magnetic field of the sensing magnet 180 .

In addition, the lens driving apparatus 100 may further include a second position sensor 240 (refer to FIG. 9 ) for driving an OIS (Optical Image Stabilizer) feedback. Also, the lens driving device 100 may further include a cover member 300 .

An embodiment may provide a lens driving device including an OIS function capable of reducing or suppressing magnetic field interference between magnets included in two adjacent lens driving units mounted on a dual camera module.

In addition, the embodiment can balance the electromagnetic force generated in the X-axis direction perpendicular to the optical axis (OA) direction and the electromagnetic force generated in the Y-axis direction in order to perform the OIS function, and thereby the X-axis or Y-axis of the lens drive unit. The occurrence of tilt in the axial direction can be suppressed.

In addition, the embodiment can reduce the current consumption by reducing the number of magnets for OIS, reducing the size of the magnets for OIS, and reducing the weight of the OIS movable part.

First, the bobbin 110 will be described.

The bobbin 110 is disposed inside the housing 140, and is directed toward the optical axis OA by electromagnetic interaction between the first coil 120 and the first and second magnets 130-1 and 130-2. Alternatively, it may be moved in a first direction (eg, a Z-axis direction).

4A is an exploded perspective view of the bobbin 110, the first coil unit 120-1, the second coil unit 120-2, and the sensing magnet 180, and FIG. 4B is the bobbin 110 and the first coil. It is a combined perspective view of the unit 120-1, the second coil unit 120-2, and the sensing magnet 180.

Referring to FIGS. 4A and 4B , the bobbin 110 may have an opening for mounting a lens or a lens barrel. For example, the opening of the bobbin 110 may be in the form of a through hole penetrating the bobbin 110, and the shape of the opening of the bobbin 110 may be circular, elliptical, or polygonal, but is not limited thereto.

A lens may be directly mounted in the opening of the bobbin 110, but is not limited thereto, and in another embodiment, a lens barrel for mounting or coupling at least one lens may be coupled or mounted in the opening of the bobbin 110. there is. The lens or lens barrel may be coupled to the inner circumferential surface 110a of the bobbin 110 in various ways.

The bobbin 110 may include first side parts (or first sides) spaced apart from each other and second side parts (or second sides) spaced apart from each other. Each of the second side parts may connect two adjacent first side parts to each other. For example, first sides of the bobbin 110 may be referred to as "sides" and second sides of the bobbin 110 may be referred to as "corners or corners".

A first seating groove 41 for mounting, seating, or disposing the first coil unit 120-1 may be provided on one of the side parts (eg, the first side part) of the bobbin 110, and the bobbin A second seating groove 42 for mounting, seating, or arranging the second coil unit 120-2 may be provided on another one of the side parts (eg, the second side part) of the 110.

For example, the first seating groove 41 and the second seating groove 42 may be provided on two side parts located opposite to each other among the side parts of the bobbin 110, and the bobbin 110 It may have a structure recessed from the outer surfaces of the two side parts, and may have a shape matching the shapes of the first coil unit 120-1 and the second coil unit 120-2.

In another embodiment, a first protrusion for mounting or winding the first coil unit 120-1 may be provided on one side of the bobbin 110, and on the other one of the side portions of the bobbin 110. A second protrusion for mounting or winding the two-coil unit 120-2 may be provided.

The bobbin 110 may include a first groove 18a provided on one of the side surfaces of the bobbin 110 (eg, the fourth side) for mounting or disposing the sensing magnet 180 . there is. For example, the fourth side of the bobbin 110 may be a side on which the first coil unit 120-1 or the second coil unit 120-2 is not disposed.

In addition, the bobbin 110 may have a second groove provided on one of the other side parts (eg, the third side part) of the bobbin 110 for mounting or disposing of the balancing magnet 185 . For example, the third side of the bobbin 110 may be a side opposite to the third side of the bobbin 110 without the first coil unit 120-1 or the second coil unit 120-2 disposed thereon. there is.

The bobbin 110 may include protrusions 111 provided at corner portions of the bobbin 110 . The protruding portion 111 may protrude in a direction parallel to a straight line passing through the center of the opening of the bobbin 110 and perpendicular to the optical axis direction, but is not limited thereto.

The protruding part 111 of the bobbin 110 corresponds to the groove part 145 of the housing 140, and may be inserted or disposed in the groove part 145 of the housing 140, and the bobbin 110 is constant around the optical axis. Movement or rotation beyond the range can be suppressed or prevented.

An escape groove 122a may be provided on the upper surface of the corner portion of the bobbin 110 to avoid spatial interference with the first frame connecting portion 153 of the upper elastic member 150 .

Although not shown in FIG. 4A , the bobbin 110 may include a first stopper protruding from an upper surface and a second stopper protruding from a lower surface. The first and second stoppers of the bobbin 110, when the bobbin 110 moves in the first direction for the auto focusing function, even if the bobbin 110 moves beyond the prescribed range due to an external impact, the bobbin 110 It is possible to prevent the upper surface of the cover member 300 from directly colliding with the inside of the upper plate, and the lower surface of the bobbin 110 is attached to the base 210, the second coil 230, or/and the circuit board 250. A direct collision can be prevented.

A first coupling portion for coupling and fixing to the upper elastic member 150 may be provided on the upper surface of the bobbin 110, and a second coupling portion for coupling and fixing to the lower elastic member 160 may be provided on the lower surface of the bobbin 110. A supplement may be provided.

For example, in FIGS. 4A and 4B, the first and second coupling parts of the bobbin 110 may have a flat shape, but are not limited thereto, and in another embodiment, the first and second coupling parts of the bobbin 110 It may also have a groove or protrusion shape.

Next, the first coil 120 will be described.

The first coil 120 includes a first coil unit 120-1 and a second coil unit 120-2 disposed on two opposite sides of the bobbin 110. . Here, the coil unit may be expressed as “a coil, a coil unit, a coil block, or a coil ring” or the like.

For example, the first coil unit 120-1 may be disposed in the first seating groove 41 of the bobbin 110, and the second coil unit 120-2 may be disposed in the second seating groove of the bobbin 110 ( 42), but is not limited thereto, and in another embodiment, each of the first coil unit 120-1 and the second coil unit 120-2 has at least one coil provided on the side of the bobbin 110. It may be wound on a protrusion or mounted on at least one protrusion provided on the side of the bobbin 110 .

Each of the first coil unit 120-1 and the second coil unit 120-2 may include at least one shape among an elliptical shape, a tran shape, and a closed curve shape. For example, each of the first coil unit 120-1 and the second coil unit 120-2 may have a coil ring shape passed through the center of the opening of the bobbin 110 and rotated about an axis perpendicular to the optical axis.

For example, each of the first coil unit 120-1 and the second coil unit 120-2 includes a first part 3a, a second part 3b disposed under the first part 3a, and a first part 3b. (3a) and the second part (3b) may include a connection part (3c) connecting each other, and a closed curve may be formed by the first to third parts (3a, 3c).

The third portion 3c includes a first connecting portion 3c1 connecting one end of the first portion 3a and one end of the second portion 3b, and the other end of the first portion 3a and the second portion 3b. It may include a second connection part (3c2) connecting the other end of.

For example, the first part 3a may be expressed as a "first straight part", the second part 3b may be expressed as a "second straight part", and the third part 3c may be expressed as a "curved part". ", the first connection part 3c1 may be expressed as a first curved part, and the second connection part 3c2 may be expressed as a second curved part.

The first coil 120 is disposed between the first coil unit 120-1 and the second coil unit 120-2, and the first coil unit 120-1 and the second coil unit 120-2 It may include a connection portion (not shown), a connection coil, or a connection line connecting the to each other.

One end of the connection part of the first coil 120 may be connected to one end of the first coil unit 120-1, and the other end of the connection part of the first coil 120 may be connected to one end of the second coil unit 120-2. can be connected That is, the first coil unit 120-1 and the second coil unit 120-2 may be connected in series by the connecting portion of the first coil 120.

The connecting portion of the first coil 120 may face the third magnet 130-1 and may be disposed between the third magnet 130-1 and the bobbin 110.

Alternatively, according to another embodiment, the connection part of the first coil 120 may be disposed between the fourth side of the bobbin 110 and the fourth side of the housing 140 . For example, the connecting portion of the first coil 120 may face the dummy member 135 and may be disposed between the dummy member 135 and the bobbin 110 .

In another embodiment, the first coil unit 120-1 and the first coil unit 120-2 may be separated or separated from each other.

When a driving signal (eg, driving current) is supplied to the first coil 120, through electromagnetic interaction between the first coil 120 and the first and second magnets 130-1 and 130-2. Electromagnetic force may be formed, and the bobbin 110 may be moved in the direction of the optical axis OA by the formed electromagnetic force.

At the initial position of the AF movable unit, the bobbin 110 may be moved in an upward or downward direction (eg, a Z-axis direction), which is referred to as bidirectional driving of the AF movable unit. Alternatively, the bobbin 110 may be moved in only one direction of the upper or lower direction in the initial position of the AF movable unit, which is referred to as unidirectional driving of the AF movable unit.

Referring to FIG. 10B , in the initial position of the AF movable unit, the first coil unit 120-1 is perpendicular to the optical axis, and the first coil unit 120-1 (or the first coil unit 120-1) is perpendicular to the optical axis. It may face or overlap with the first magnet 130-1 in a direction toward the center of, but not face or overlap with the third magnet 130-3.

In the initial position of the AF movable unit, the second coil unit 120-2 is perpendicular to the optical axis, and the direction from the optical axis toward the second coil unit 120-2 (or the center of the second coil unit 120-2) may face or overlap the second magnet 130-2, but not face or overlap the third magnet 130-3.

The AF movable unit may include a bobbin 110 and components coupled to the bobbin 110 . For example, the AF movable unit may include the bobbin 110, the first coil 120, the sensing magnet 180, or/and the balancing magnet. Also, the AF movable unit may further include a lens mounted on the bobbin 110 .

Also, the initial position of the AF movable part is the initial position of the AF movable part in a state in which power is not applied to the first coil 120, or the AF is movable as the upper and lower elastic members 150 and 160 are elastically deformed only by the weight of the AF movable part. It may be a position where the part is placed. In addition, the initial position of the AF movable part (eg, bobbin 110) is determined when gravity acts in the direction from the bobbin 110 to the base 210, or vice versa, when gravity acts in the direction from the base 210 to the bobbin 110. It may be a position where the AF movable part of is placed.

Next, the sensing magnet 180 will be described.

The sensing magnet 180 may be disposed on one side of the bobbin 110 on which the first coil unit 120-1 and the second coil unit 120-2 are not disposed. For example, the sensing magnet 180 may be disposed in the first groove 180a of the bobbin 110 .

When the lens driving device 100 includes the balancing magnet 185, the balancing magnet 185 is disposed on the first coil unit 120-1 and the second coil unit 120-2 among side parts of the bobbin 110. It can be placed on any other side where it is not placed. For example, the balancing magnet 185 may be disposed in the second groove (not shown) of the bobbin 110 described above.

The balancing magnet 185 may be used to cancel the influence of the magnetic field of the sensing magnet 180 and to balance the weight with the sensing magnet 180, so that an accurate AF operation can be performed.

In the sensing magnet 180 (and/or the balancing magnet 185), the interface between the N pole and the S pole may be parallel to a direction perpendicular to the optical axis direction, but is not limited thereto. For example, in another embodiment, the interface between the N pole and the S pole may be parallel to the optical axis direction.

For example, the sensing magnet 180 may be a unipolar magnetized magnet having one N pole and one S pole, but is not limited thereto, and may be a bipolar magnetized magnet in another embodiment.

By the interaction between the first coil unit 120-1 and the first magnet 130-1 and the interaction between the second coil unit and the second magnet 130-2, the sensing magnet 180 forms a bobbin 110 can move in the optical axis direction (OA) together, the first position sensor 170 can detect the strength of the magnetic field of the sensing magnet 180 moving in the optical axis direction, and output an output signal according to the detected result. can

For example, the controller 830 of the camera module 200 or the controller 780 of the terminal 200A determines the displacement of the bobbin 110 in the optical axis direction based on the output signal output from the first position sensor 170. can be detected.

In another embodiment, the sensing magnet 180 or/and the balancing magnet 185 may be omitted, the first position sensor may be mounted on the bobbin instead of the housing, and the first coil 120 and the first magnet 130 ) As the bobbin 110 and the first position sensor move in the direction of the optical axis by the interaction between them, the first position sensor may detect the strength of the magnetic field of the first magnet and output an output signal according to the detected result. .

Next, the housing 140 will be described.

The housing 140 accommodates at least a portion of the bobbin 110 therein, and includes the first magnet 130-1, the second magnet 130-2, the third magnet 130-3, and the dummy member 135. ) to support

The OIS moving unit (or lens driving unit) may include the aforementioned AF driving unit and the housing 140 . For example, the OIS movable unit (or lens driving unit) may further include components (eg, 130-1 to 130-3, 135, 190, and 170) mounted on the housing 140.

For example, the OIS moving unit (or lens driving unit) may be moved by the OIS driving based on the electromagnetic force generated by the interaction between the first to third magnets 130-1 to 130-3 and the second coil 230. there is.

5A is a perspective view of the housing 140, the first to third magnets 130-1 to 130-3, and the dummy member 135, and FIG. 5B is a perspective view of the housing 140 and the first position sensor 170. , and a perspective view of the circuit board 190.

Referring to FIGS. 5A and 5B , the housing 140 may be disposed inside the cover member 300 and may be disposed between the cover member 300 and the bobbin 110 . The housing 140 may accommodate the bobbin 110 therein.

The outer surface of the housing 140 may be spaced apart from the inner surface of the side plate of the cover member 300, and the housing 140 may be moved by the OIS drive due to the space between the housing 140 and the cover member 300. can

The housing 140 may have a hollow column shape including an opening or a hollow.

For example, the housing 140 may have a polygonal (eg, square or octagonal) or circular opening. For example, the opening of the housing 140 may be in the form of a through hole to accommodate the bobbin 110 .

The housing 140 may include a plurality of side parts 141-1 to 141-4 and a plurality of corner parts 142-1 to 142-4.

For example, the housing 140 may include first to fourth side parts 141-1 to 141-4 and first to fourth corner parts 142-1 to 142-4.

The first to fourth side parts 141-1 to 141-4 of the housing 140 may be spaced apart from each other. Each of the corner portions 142-1 to 142-4 of the housing 140 has two adjacent side portions 141-1 and 141-2, 141-2 and 141-3, 141-3 and 141-4, and 141 -4 and 141-1 may be disposed or positioned between, and the side parts 141-1 to 141-4 may be connected to each other.

For example, the corner portions 142 - 1 to 142 - 4 of the housing 140 may be located at corners or corners of the housing 140 . For example, the number of side parts of the housing 140 is four, and the number of corner parts is four, but is not limited thereto.

Each of the side parts 141 - 1 to 141 - 4 of the housing 140 may be disposed parallel to a corresponding one of the side plates of the cover member 300 .

The horizontal length of each of the side parts 141-1 to 141-4 of the housing 140 may be greater than the horizontal length of each of the corner parts 142-1 to 142-4, but is not limited thereto. .

The first side part 141-1 and the second side part 141-2 of the housing 140 may be located opposite or facing each other, and the third side part 141-3 and the fourth side part 141-4 ) may be located opposite each other or facing each other. Each of the third side portion 141-3 and the fourth side portion 141-4 of the housing 140 may be positioned between the first side portion 141-2 and the second side portion 141-2.

In order to prevent direct collision with the inner surface of the top plate of the cover member 300, the housing 140 may be provided with a stopper 144 on the upper, upper, or upper surface.

For example, the stopper 144 may be provided on the upper surface (eg, the first surface 51a) of each of the corner portions 142-1 to 142-4 of the housing 140, but is not limited thereto.

In addition, a guide protrusion 146 for guiding a damper applied to the support member 220 may be included on the top, top, or top surface of the corner portions 142-1 to 142-4 of the housing 140.

At least one first coupling part for coupling with the first outer frame 152 of the upper elastic member 150 may be provided on the top, top, or top surface of the housing 140 . In addition, at least one second coupling part for coupling and fixing to the second outer frame 162 of the lower elastic member 160 may be provided on the lower, lower, or lower surface of the housing 140 .

Each of the first coupling portion and the second coupling portion of the housing 140 may be any one of a flat surface, a groove, and a protrusion.

The first coupling part of the housing 140 and the hole 152a of the first outer frame 152 of the upper elastic member 150 may be coupled using heat fusion or adhesive, and the second coupling of the housing 140 may be performed. The hole 162a of the second outer frame 162 of the portion and the lower elastic member 160 may be coupled.

The housing 140 is provided on any one of two side parts (eg, the first side part 141-1) located opposite to each other and a first seating part 141a for disposing the first magnet 130-1. ), and a second seating portion 141b provided on the other one 141-2 of the two side portions and for disposing the second magnet 130-2.

In addition, the housing 140 is provided on any one of the other two side parts (eg, the third side part 141-3) located opposite to each other and is a third seat for the third magnet 130-3 to be disposed. It may include a portion 141c, and a fourth seating portion 141d provided on the other one 141-4 of any of the other two side portions and on which the dummy member 135 is disposed.

Each of the first to third seating parts 141a to 141c of the housing 140 may be provided on an inner surface of a corresponding one of the side parts of the housing 140, but is not limited thereto, and is provided on an outer surface. It could be.

Each of the first to third seating parts 141a to 141c of the housing 140 corresponds to a corresponding one of the first to third magnets 130-1 to 130-3 or has a shape corresponding to the groove. , For example, it may be formed as a groove, but is not limited thereto.

For example, the first seating portion 141a (or the second seating portion 141b) of the housing 140 may have a first opening facing the first coil unit 120-1 (or the second coil unit). and a second opening facing the third coil unit 230-1 (or the fourth coil unit 230-2) may be formed to facilitate mounting of the magnet 130, In another embodiment, at least one of the first and second openings may be omitted.

The third seating portion 141c of the housing 140 may have a first opening facing the outer surface of the bobbin 110 and a second opening facing the fifth coil unit 230-3. It is not limited, and in other embodiments, at least one of the first and second openings may be omitted.

The fourth seating portion 141d of the housing 140 has a first opening that opens to the outer surface of the fourth side portion 141-4 of the housing 140 and a second opening that opens to the lower surface of the fourth side portion of the housing 140. It may include two openings, but is not limited thereto, and in other embodiments, at least one of the first and second openings may be omitted.

For example, one side surface of the magnets 130-1, 130-2, and 130-3 fixed or disposed to the seating parts 141a, 141b, and 141c of the housing 140 is It may be exposed through the first opening. In addition, the lower surfaces of the magnets 130-1, 130-2, and 130-3 fixed or disposed on the seating portions 141a, 141b, and 141c of the housing 140 are second openings of the seating portions 141a, 141b, and 141c. can be exposed through

One side surface of the dummy member 135 fixed to or disposed on the seating portion 141d of the housing 140 may be exposed to the outer surface of the fourth side portion 141-4 of the housing 140 through the first opening. And, the lower surface of the dummy member 135 may be exposed through the second opening.

For example, the first to third magnets 130-1 to 130-3 and the dummy member 135 may be fixed to the mounting portions 141a to 141d using an adhesive.

Support members 220-1 to 220-4 may be disposed at the corner portions 142-1 to 142-4 of the housing 140, and the corner portions 142-1 to 142-4 of the housing 140 A hole 147a forming a path through which the support members 220-1 to 220-4 pass may be provided.

For example, the housing 140 may include a hole 147a penetrating upper portions of the corner portions 142-1 to 142-4.

In another embodiment, the holes provided in the corner portions 142-1 to 142-4 of the housing 140 may be recessed from the outer surface of the corner portion of the housing 140, and at least a portion of the hole is formed on the outer surface of the corner portion. may be opened as The number of holes 147a of the housing 140 may be the same as the number of support members.

The housing 140 may include at least one stopper (not shown) protruding from the outer surface of the side parts 141-1 to 141-4, and the at least one stopper is perpendicular to the optical axis direction of the housing 140. It is possible to prevent collision with the cover member 300 when moving in one direction.

In order to prevent the lower surface of the housing 140 from colliding with the base 210 and/or the circuit board 250, the housing 140 may further include a stopper (not shown) protruding from the lower surface.

In order to secure a path through which the support members 220-1 to 220-4 pass, as well as to secure a space for filling silicon, which may serve as a damping, the housing 140 has corner portions 142-1 to 142 -4) may be provided with a groove 148 provided at the bottom or bottom. For example, the groove 148 of the housing 140 and the hole 147a of the housing 140 may be connected to each other. For example, a lower end of the hole 147a of the housing 140 may be opened as a groove 148 of the housing 140 .

A first groove 14a for accommodating the circuit board 190 and a second groove 14b for accommodating the first position sensor 170 are provided on the fourth side portion 141-4 of the housing 140. It can be.

To facilitate the mounting of the circuit board 190 , the first groove 14a of the housing 140 may have an open top and may have a shape corresponding to or matching the shape of the circuit board 190 .

The second groove 14b may have an opening that opens to the inside of the housing 130 and may have a structure in contact with or connected to the first groove 14a, but is not limited thereto. The second groove 14b may have a shape corresponding to or matching the shape of the first position sensor 170 .

Next, the first magnet 130-1, the second magnet 130-2, and the third magnet 130-3 will be described.

The first magnet 130 - 1 , the second magnet 130 - 2 , and the third magnet 130 - 3 may be spaced apart from each other and disposed in the housing 140 . For example, each of the first to third magnets 130-1 to 130-3 may be disposed between the bobbin 110 and the housing 140.

The first magnet 130 - 1 , the second magnet 130 - 2 , and the third magnet 130 - 3 may be disposed on the side of the housing 140 .

The first magnet 130-1 and the second magnet 130-2 are two side parts 141-1 and 141 positioned opposite each other among the side parts 141-1 to 141-4 of the housing 140. -2) can be placed.

For example, the first magnet 130-1 may be disposed on the first side 141-1 of the housing 140, and the second magnet 130-2 faces the first side 141-1. It may be disposed on the second side part 141-2 of the housing 140. For example, the third magnet 130 - 3 may be disposed on the third side part 141 - 3 of the housing 140 .

For example, each of the first to third magnets 130 - 1 to 130 - 3 may be disposed on a corresponding one of the first to third seating parts 141a to 141c of the housing 140 .

The first and second coil units 120-1 and 120-2 for AF driving are disposed on two opposite sides of the bobbin 110, and the bobbin 110 and the third magnet 130-3 ), the coil unit for driving the AF is not disposed between them. Also, a coil unit for AF driving is not disposed between the bobbin 110 and the dummy member 135 .

Also, for OIS driving, the third to fifth coil units 230-1 to 230-3 and the first to third magnets 130-1 to 130-3 correspond to each other in the optical axis direction, and the dummy member The second coil 230 for driving the OIS is not disposed between the circuit board 135 and the circuit board 250 .

For example, the first magnet 130-1 may include a first surface facing the first coil unit 120-1, and the first surface of the first magnet 130-1 has an N pole and an S pole. It may include two polarities of and a first partition 11c positioned between the two polarities. For example, the first barrier rib 11c may be a first non-magnetic barrier rib.

For example, the first magnet 130-1 may include a second surface facing the third coil unit 230-1 in the optical axis direction, and the second surface of the first magnet 130-1 is the N pole. It may include two polarities of and S poles.

For example, the second magnet 130-2 may include a first surface facing the second coil unit 120-2, and the first surface of the second magnet 130-2 has an N pole and an S pole. It may include two polarities of and a second partition wall 12c positioned between the two polarities. For example, the second barrier rib 12c may be a non-magnetic barrier rib.

For example, the second magnet 130-2 may include a second surface facing the fourth coil unit 230-2 in the optical axis direction, and the second surface of the second magnet 130-2 is the N pole. It may include two polarities of and S poles.

For example, the third magnet 130-3 includes a first surface facing the side of the bobbin 110 facing the side 141-3 of the housing 140 on which the third magnet 130-3 is disposed. , and the first surface of the third magnet 130-3 may include two polarities of an N pole and an S pole.

Also, for example, the third magnet 130-3 may include a second surface facing the fifth coil unit 230-3 in the optical axis direction, and the second surface of the third magnet 130-3 is N It may include two polarities of a pole and an S pole, and a third partition wall 13c located between the two polarities. For example, the third barrier rib 13c may be a non-magnetic barrier rib 13c.

At the initial position of the AF movable unit, the first magnet 130-1 is perpendicular to the optical axis and directed in a direction from the optical axis toward the first coil unit 120-1 (or the center of the first coil unit 120-1). It may overlap with one coil unit 120-1.

At the initial position of the AF movable part, the second magnet 130-2 is perpendicular to the optical axis and directed in a direction from the optical axis toward the second coil unit 120-2 (or the center of the second coil unit 120-2). It may overlap with the 2 coil unit 120-2.

In the initial position of the AF movable unit, the third magnet 130-3 is perpendicular to the optical axis and is directed from the third side part 141-3 to the fourth side part 141-4 of the housing 140, the first coil unit. It does not face or overlap with (120-1) and the second coil unit (120-2).

The first magnet 130-1 is perpendicular to the optical axis and overlaps the second magnet 130-2 in a direction from the first side part 141-1 of the housing 140 to the second side part 141-2. and may not overlap with the third magnet 130-3.

Each shape of the first to third magnets 130-1 to 130-3 is seated or placed on a corresponding one of the first to third side parts 141-1 to 141-3 of the housing 140. It may be a polyhedral shape that is easy to become. For example, each of the first to third magnets 130-1 to 130-3 may have a flat plate shape, but is not limited thereto.

Each of the first to third magnets 130-1 to 130-3 may be a 4 pole magnet including two N poles and two S poles. Here, the 4-pole magnet may be expressed as a bipolar magnetized magnet. The first to third magnets 130-1 to 130-3 will be described later.

The dummy member 135 may be disposed on the fourth side portion 141 - 4 of the housing 140 . The dummy member 135 may be a non-magnetic material, but is not limited thereto, and may include a magnetic material in another embodiment. For example, the dummy member 135 may be metal or an insulator.

The dummy member 135 may have the same mass as the third magnet 130-3, but is not limited thereto. The dummy member 135 may be disposed on a side portion 141-4 opposite to the side portion 141-3 of the housing 140 where the third magnet 130-3 is disposed for weight balance.

In the initial position of the AF movable unit, the dummy member 135 is perpendicular to the optical axis and is directed from the third side portion 141-3 to the fourth side portion 141-4 of the housing 140, the first coil unit 120- 1) and does not face or overlap with the second coil unit 120-2.

The dummy member 135 may overlap the third magnet 130 - 3 in a direction perpendicular to the optical axis and from the third side portion 141 - 3 to the fourth side portion 141 - 4 of the housing 140 .

For example, the dummy member 135 moves the first and second magnets 130-1 and 130-2 in a direction from the third side portion 141-3 to the fourth side portion 141-4 of the housing 140. may not overlap with

In addition, the dummy member 135 may overlap at least a portion of the position sensor 170 in a direction perpendicular to the optical axis and from the third side portion 141-3 to the fourth side portion 141-4 of the housing 140. , but is not limited thereto, and in another embodiment, both may not overlap with each other.

When the dummy member 135 includes a magnetic material, the magnetic strength of the dummy member 135 may be less than that of the third magnet 130 - 3 . This is because the lens driving units are disposed so that the dummy members included in the lens driving units are adjacent to each other, so that the camera module according to the embodiment can reduce magnetic field interference between magnets included in two adjacent lens driving units.

For example, the dummy member 135 may include tungsten, and tungsten may account for 95% or more of the total weight. For example, the dummy member 135 may be a tungsten alloy.

The dummy member 135 may have a polyhedral shape, for example, a rectangular parallelepiped shape, but is not limited thereto and may be formed in various shapes. For example, the dummy member 135 may include a rounded portion or a curved surface at a side edge.

Next, the circuit board 190 and the first position sensor 170 will be described.

The first position sensor 170 and the circuit board 190 are disposed on one of the sides of the housing 140 . For example, the first position sensor 170 and the circuit board 190 may be disposed on the fourth side part 141 - 4 of the housing 140 where the dummy member 135 is disposed. This is to avoid spatial interference between the first to third magnets 130-1 to 130-3 and the circuit board 190 on which the first position sensor 170 is mounted.

For example, the circuit board 190 may be disposed in the first groove 14a of the housing 140, and the first position sensor 170 may be disposed or mounted on the circuit board 190.

At the initial position of the AF movable unit, the first position sensor 170 may overlap at least a portion of the sensing magnet 180 in a direction perpendicular to the optical axis and toward the first position sensor 170 in the optical axis, but is not limited thereto. no.

The first position sensor 170 may be disposed on the first surface of the circuit board 190 . Here, the first surface of the circuit board 190 mounted on the housing 140 may be a surface facing the inside of the housing 140 (or the outside surface of the bobbin 110).

The first position sensor 170 may be implemented in the form of a driver IC (Integrated Circuit) including a Hall sensor or may be implemented as a single position detection sensor such as a Hall sensor.

When the first position sensor 170 is implemented with a Hall sensor alone, the first position sensor 170 may include two input terminals and two output terminals, and the first position sensor 170 has an input terminal. Each of the fields and output terminals may be electrically connected to a corresponding one of the first to fourth pads of the circuit board 190 .

For example, the circuit board 190 may be a printed circuit board or FPCB.

For example, the first to fourth terminals of the circuit board 190 may be electrically connected to a corresponding one of the upper springs 150-1 to 150-4, and the supporting members 220-1 to 220-4 ) may be electrically connected to the circuit board 250, and the first position sensor 170 may be electrically connected to the circuit board 250. For example, two input terminals of the first position sensor 170 and The two output terminals may be electrically connected to terminals of the circuit board 250 .

If the first position sensor 170 is a driver IC including a Hall sensor, four terminals and a first coil ( 120) may include two terminals for providing a driving signal.

Next, the upper elastic member 150, the lower elastic member 160, the support member 220, the second coil 230, the circuit board 250, and the base 210 will be described.

Figure 6 is a plan view of the upper elastic member 150, Figure 7 is a view for explaining the electrical connection relationship between the upper elastic member 150, the first position sensor 170, and the support member 220, Figure 8 is a bottom view of the lower elastic member 160 and the housing 140, and FIG. 9 is an exploded perspective view of the base 210, the second coil 230, the second position sensor 240, and the circuit board 250. indicate

Referring to FIGS. 6 to 9 , the upper elastic member 150 may be coupled to the top, top surface, or top of the bobbin 110 and the top, top surface, or top of the housing 140 . The lower elastic member 160 may be coupled to the bottom, bottom, or bottom of the bobbin 110 and the bottom, bottom, or bottom of the housing 140 .

The upper elastic member 150 and the lower elastic member 160 may constitute an elastic member, the elastic member may be coupled to the bobbin and the housing, and the elastic member elastically supports the bobbin 110 with respect to the housing 140. can do.

The upper elastic member 150 may include a plurality of upper springs 150-1 to 150-4 electrically separated from each other. Although FIG. 6 shows four electrically separated upper springs, the number is not limited thereto, and in other embodiments, there may be two or more.

For example, the first upper spring 150-1 may be disposed on the first corner portion 142-1 and the fourth side portion 141-4 of the housing 140.

For example, the second upper spring 150 - 2 may be disposed on the fourth side portion 141 - 4 and the second corner portion 142 - 2 of the housing 140 .

For example, the third upper spring 150-3 may be disposed on the second corner portion 142-2, the second side portion 141-2, and the third corner portion 142-3 of the housing 140. can

For example, the fourth upper spring 150-4 may be disposed on the fourth corner portion 142-4, the first side portion 141-1, and the first corner portion 142-1 of the housing 140. can

At least one of the first to fourth upper springs 150-1 to 150-4 includes a first inner frame 151 coupled to the bobbin 110 and a first outer frame 152 coupled to the housing 140. , A first frame connecting portion 153 connecting the first inner frame 151 and the first outer frame 152 may be further included. In another embodiment, the inner frame may be expressed as an "inner part", the outer frame may be expressed as an "outer part", and the frame connecting part may be expressed as a "connecting part".

For example, each of the first and second upper springs 150-1 and 150-2 may include a first outer frame 152 and may not include a first inner frame and a first frame connection portion, Each of the third and fourth upper springs 150-3 and 150-4 may include a first inner frame 151, a first outer frame 152, and a first frame connection part 153, but this It is not limited.

For example, a hole 151a for coupling with the first coupling part of the bobbin 110 may be provided in the first inner frame 151 . Also, for example, the first outer frame 152 may be provided with a hole 152a for coupling with the first coupling part of the housing 140 .

The first outer frame 152 of each of the first to fourth upper springs 150-1 to 150-4 has a contact portion P1 to electrically connected to a corresponding one of the terminals of the circuit board 190. P4) may be provided.

The first outer frame 152 of each of the first to fourth upper springs 150-1 to 150-4 includes a first coupling part 510 coupled to the support members 220-1 to 220-4, the housing It may include a second coupling part 520 coupled to any one of the corresponding corner parts of 140 and a connection part 530 connecting the first coupling part 510 and the second coupling part 520 .

For example, the connection part 530 may include a first connection part 530-1 connecting the first region of the first coupling part 510 and the second coupling part 520, the first coupling part 510, and the second coupling part. It may include a second connection part 530-2 connecting the second area of 520. The connecting portion 530 may include a portion bent at least once or a bent portion.

The lower elastic member 160 may include two lower springs, but is not limited thereto, and may include one lower spring or three or more lower springs in another embodiment.

For example, each of the first and second lower springs 160-1 and 160-2 is of the second inner frame 161 and the housing 140 coupled or fixed to the bottom, bottom, or bottom of the bobbin 110. It may include a second outer frame 162 coupled or fixed to the bottom, bottom, or bottom, and a second frame connection part 163 connecting the second inner frame 161 and the second outer frame 162 to each other. there is.

Each of the first frame connection part 153 of the upper elastic member 150 and the second frame connection part 163 of the lower elastic member 160 is formed to be bent or curved (or curved) at least once to form a pattern of a predetermined shape. can form The bobbin 110 may be elastically (or elastically) supported for upward and/or downward motion in the first direction through a change in position and fine deformation of the first and second frame connectors 153 and 163 .

A hole 161a for coupling with the second coupling portion of the bobbin 110 may be provided in the second inner frame 161, and the second outer frame 162 is coupled with the second coupling portion of the housing 140. A hole 162a to become may be provided.

The upper springs 150-1 to 150-4 and the lower springs 160-1 and 160-2 may be formed of leaf springs, but are not limited thereto, and may be implemented as coil springs or the like. Also, in the upper springs and the lower springs, “spring” may be expressed as “elastic unit” instead.

In order to absorb and buffer the vibration of the bobbin 110, the lens driving device 100 is disposed between each of the upper springs 150-1 to 150-4 and the bobbin 110 (or housing 140). 1 damper (not shown) may be further provided.

For example, a first damper (not shown) may be disposed in a space between the first frame connecting portion 153 of each of the upper springs 150-1 to 150-4 and the bobbin 110.

Also, for example, the lens driving device 100 may further include a second damper (not shown) disposed between the second frame connecting portion 163 of the lower elastic member 160 and the bobbin 110 (or the housing 140). may be

Also, for example, the lens driving apparatus 100 may further include a third damper (not shown) disposed between the supporting member 220 and the hole 147a of the housing 140 .

Also, for example, the lens driving device 100 may further include a fourth damper (not shown) disposed on one end of the first coupler 510 and the support member 220, and the other end of the support member 220 and A fifth damper (not shown) disposed on the circuit board 250 may be further included.

Also, for example, a damper (not shown) may be further disposed between the inner surface of the housing 140 and the outer circumferential surface of the bobbin 110 .

Next, the support member 220 will be described.

The support member 220 may movably support the housing 140 in a direction perpendicular to the optical axis with respect to the base 210, and the support member 220 may be connected to at least one of the upper and lower elastic members 150 and 160. The circuit board 250 may be electrically connected.

The support member 220 may include a plurality of support members 220-1 to 220-4.

For example, the housing 140 may include first to fourth support members 220-1 to 220-4 corresponding to the corner portions 142-1 to 142-4.

Each of the first to fourth support members 220-1 to 220-4 may be disposed at a corresponding one of the first to fourth corner portions 142-1 to 142-4 of the housing 140, , The first to fourth upper springs 150-1 to 150-4 and the circuit board 250 may be connected to each other.

For example, each of the first to fourth support members 220-1 to 220-4 is connected to a corresponding one of the first to fourth upper springs 150-1 to 150-4 and the circuit board 250. Corresponding one of the terminals may be electrically connected.

The first to fourth support members 220-1 to 220-4 may be spaced apart from the housing 140, and are not fixed to the housing 140, but are connected to the first to fourth support members through soldering or the like. (220-1 to 220-4), one end of each of the first to fourth upper springs (150-1 to 150-4) can be directly connected to or coupled to the corresponding one of the first coupling part 510 there is.

In addition, the other ends of each of the first to fourth support members 220-1 to 220-4 may be directly connected or coupled to the circuit board 250 through solder or the like. For example, the other end of each of the first to fourth support members 220 - 1 to 220 - 4 may be directly connected to or coupled to the lower surface of the circuit board 250 . In another embodiment, the other end of each of the support members 220-1 to 220-4 may be coupled to the circuit member 231 or the base 210 of the second coil 230.

For example, each of the first to fourth support members 220-1 to 220-4 passes through a hole 147a provided in a corresponding one of corner portions 142-1 to 142-4 of the housing 140. It can be done, but is not limited thereto. In another embodiment, the support members may be disposed adjacent to the boundary line between the side parts 141-1 to 141-4 and the corner parts 142 of the housing 140, and the corner part 142-1 of the housing 140. to 142-4).

The first coil 120 may be electrically connected to the lower elastic member 150 .

When the first coil unit 120-1 and the second coil unit 120-2 are connected to each other (CASE1), one end of the first coil unit 120-1 is connected to the first to fourth lower springs 160-2. 1 to 160-4) may be connected or coupled to the second inner frame 161 of any one (eg, 160-2), and one end of the second coil unit 120-2 is the first to fourth lower parts. Any one of the springs 160-1 to 160-4 (eg, 160-4) may be connected or coupled to the second inner frame 161.

In CASE1, when the first position sensor 170 is implemented with only a position detection sensor such as a Hall sensor, two lower springs connected to the first coil unit 120-1 and the second coil unit 120-2 ( For example, 160-2 and 160-4 may be electrically connected to terminals of the circuit board 250, and the first coil unit 120-1 and the second coil unit 120-1 may be electrically connected through the circuit board 250. 2) may be provided with one driving signal.

In CASE1, when the first position sensor 170 is implemented in the form of a driver IC (Integrated Circuit) including a Hall sensor, the first coil unit 120-1 and the second coil unit 120-2 The two lower springs (eg, 160-2 and 160-4) connected to may be electrically connected to the first position sensor 170, and through the first position sensor 170, the first coil unit 120- 1) and one driving signal may be provided to the second coil unit 120-2.

In the case of another embodiment in which the first coil unit 120-1 and the second coil unit 120-2 are separated from each other (CASE2), the first coil unit 120-1 includes the first to fourth lower springs ( Any two of 160-1 to 160-4 (eg, 160-1 and 160-2) may be connected or coupled to the second inner frames, and the second coil unit 120-2 may be connected to the first to second inner frames. The other two of the fourth lower springs (eg, 160-3 and 160-4) may be connected or coupled to second inner frames.

In CASE2, when the first position sensor 170 is implemented solely with a position detection sensor such as a hall sensor, the first to fourth lower springs 160-1 to 160-4 may be electrically connected to the circuit board 250. there is. For example, the first to fourth lower springs 160-1 to 160-4 may be electrically connected to terminals of the circuit board 250, and the first coil unit 120 may be electrically connected to terminals of the circuit board 250. -1) and the second coil unit 120-2, respectively, individual driving signals (eg, driving current) may be provided.

In CASE2, when the first position sensor 170 is implemented in the form of a driver IC (Integrated Circuit) including a Hall sensor, the first to fourth lower springs 160-1 to 160-4 are 1 may be electrically connected to the position sensor 170, and individual drive signals (eg, drive current) may be provided.

The support member 220 may be implemented as a member capable of being supported by elasticity, for example, a suspension wire, a leaf spring, or a coil spring. Also, in another embodiment, the support member 220 may be integrally formed with the upper elastic member 150.

Next, the base 210, the circuit board 250, the second coil 230, and the second position sensor 240 will be described.

Referring to FIG. 9 , the base 210 is disposed below the bobbin 110 (or housing 140).

The base 210 may have an opening corresponding to the opening of the bobbin 110 and/or the housing 140, and may have a shape matching or corresponding to the cover member 300, for example, a rectangular shape.

A support part 255 or a support part may be provided in an area of the base 210 facing the terminal 251 of the circuit board 250 . The supporting portion 255 of the base 210 may support the terminal portion or terminal surface 253 of the circuit board 250 on which the terminal 251 is formed.

The base 210 may have a recess 212 at a corner region to avoid spatial interference with the other ends of the support members 220-1 to 220-4 coupled to the circuit board 250.

In addition, a protrusion 19 may be provided on an upper surface around the opening of the base 210 to be coupled with the opening of the circuit board 250 and the opening 231a of the circuit member 231 .

In addition, a mounting portion (not shown) in which the filter 610 of the camera module 200 is installed may be formed on the lower surface of the base 210 .

The circuit board 250 is disposed on the upper surface of the base 210 and may have an opening corresponding to an opening of the bobbin 110 , an opening of the housing 140 , or/and an opening of the base 210 . The shape of the circuit board 250 may coincide with or correspond to the upper surface of the base 210, for example, a rectangular shape.

The circuit board 250 may be bent from an upper surface and include a plurality of terminals 251 receiving electrical signals from the outside or at least one terminal surface 253 provided with pins. For example, the circuit board 250 may include two terminal surfaces disposed on two opposite sides among the sides of the upper surface, but is not limited thereto.

A driving signal may be provided to each of the first coil 120 and the second coil 230 through the plurality of terminals 251 provided on the terminal surface 253 of the circuit board 250 . In addition, a driving signal may be provided to the first position sensor 170 through the terminals 251 of the circuit board 250, an output signal of the first position sensor 170 may be received and output, and the second A driving signal may be provided to the position sensor 240, and an output signal of the second position sensor 240 may be received and output.

The driving signal provided to the first coil 120 and/or the second coil 230 may be a direct current or/and alternating current signal, and may be in the form of current or voltage.

The circuit board 250 may be formed of FPCB, but is not limited thereto, and terminals of the circuit board 250 may be directly formed on the surface of the base 210 using a surface electrode method or the like.

The circuit board 250 may include a hole 250a through which the support members 220-1 to 220-4 pass in order to avoid spatial interference with the support members. The position and number of the holes 250a may correspond to or coincide with the position and number of the supporting members 220-1 to 220-4.

In another embodiment, the circuit board 250 may have an escape groove at a corner instead of the hole 250a.

For example, the support members 220-1 to 220-4 may pass through the hole 250a of the circuit board 250 and be electrically connected to a circuit pattern disposed on the lower surface of the circuit board 250 through solder or the like. , but is not limited thereto.

In another embodiment, the circuit board 250 may not have a hole, and the supporting members 220-1 to 220-4 are soldered to circuit patterns or pads formed on the upper surface of the circuit board 250 through soldering or the like. They may be electrically connected.

Alternatively, in another embodiment, the support members 220-1 to 220-4 may be electrically connected to the circuit member 231, and the circuit member 231 may be connected to the support members 220-1 to 220-4 and the circuit. The substrate 250 may be electrically connected.

The second coil 230 may be disposed below the bobbin 110 (or housing) and may be disposed on the upper surface of the circuit board 250 .

The second coil 230 includes a third coil unit 230-1 corresponding to the first magnet 130-1 disposed on the housing 140 and a fourth coil unit corresponding to the second magnet 130-2. 230-2, and a fifth coil unit 230-3 corresponding to the third magnet 130-3.

For example, the third coil unit 230-1 may face or overlap the first magnet 130-1 in the optical axis direction, and the fourth coil unit 230-2 may face the second magnet 130-1 in the optical axis direction. 2), and the fifth coil unit 230-3 may face or overlap the third magnet 130-3 in the optical axis direction.

Each of the third to fifth coil units 230-1 to 230-5 may have a closed curve having a central hole, for example, a ring shape, and the central hole may be formed to face an optical axis direction.

For example, the third coil unit 230-1 and the fourth coil unit 230-2 may be disposed to face each other in a direction from the first magnet 130-1 to the second magnet 130-2. .

Also, for example, each of the third coil unit 230-1 and the fourth coil unit 230-2 in a direction from the first magnet 130-1 to the second magnet 130-2 is a fifth coil unit ( 230-3) may not overlap.

For example, the second coil 230 may further include a rectangular circuit member 231 on which the third to fifth coil units 230 - 1 to 230 - 3 are formed.

Here, the circuit member 231 may be referred to as a "substrate", and the substrate 231 may include the second coil 230 . Also, for example, the first coil unit 120-1 may be replaced with the first coil, the second coil unit 120-2 may be replaced with the second coil, and the second coil 230 ) may be expressed by replacing the third coil, and in this case, the substrate 231 may include the third coil.

For example, the circuit member 231 may include four sides 23a to 23d (see FIG. 11 ), and may include an opening of the housing 140 , an opening of the circuit board 250 , and/or an opening of the base 210 . An opening 231a corresponding to may be included.

Each of the third to fifth coil units 230-1 to 230-3 may be disposed on a corresponding one of the three sides of the circuit member 231, and on the other side of the circuit member 231. A coil unit may not be disposed.

For example, each of the third coil unit 230-1 and the fourth coil unit 230-2 may be disposed parallel to a corresponding one of first and second sides of the circuit member 231 facing each other, , the fifth coil unit 230 - 3 may be disposed parallel to the third or fourth side of the circuit member 231 .

In order to avoid spatial interference with the support members 220-1 to 220-4, a hole 230a may be provided at a corner of the circuit member 231, and the support members 220-1 to 220-4 may pass through the hole 230a of the silver circuit member 231 . In another embodiment, the circuit member may have a groove provided at a corner of the circuit member instead of a hole to avoid spatial interference with the supporting members.

The third to fifth coil units 230 - 1 to 230 - 3 may be electrically connected to the circuit board 250 . For example, each of the third to fifth coil units 230 - 1 to 230 - 3 may be electrically connected to corresponding terminals among terminals of the circuit board 250 .

The circuit board 250 may include bonding parts or pads to be electrically connected to the third to fifth coil units 230-1 to 230-3, and the bonding parts or pads of the circuit board 250 are It may be electrically connected to corresponding terminals among terminals of the circuit board 250 .

In FIG. 9 , the third to fifth coil units 230-1 to 230-3 may be formed on a circuit member 231 separate from the circuit board 250, but are not limited thereto, and in other embodiments The third to fifth coil units 230-1 to 230-3 may be implemented in the form of ring-shaped coil blocks or FP coils. In another embodiment, the third to fifth coil units may be implemented in the form of a circuit pattern formed on the circuit board 250 .

The circuit board 250 and the circuit member 231 are separately expressed as separate components, but are not limited thereto. It can also be expressed in terms of In this case, the other ends of the support members may be coupled to the "circuit member (eg, the lower surface of the circuit member)".

The lens driving apparatus 100 may further include a second position sensor 240 for OIS feedback driving. The second position sensor 240 may include a first sensor 240a and a second sensor 240b.

Each of the first sensor 240a and the second sensor 240b may be a Hall sensor, and any sensor capable of detecting a magnetic field strength may be used. For example, each of the first and second sensors 240a and 240b may be implemented in the form of a driver including a Hall sensor, or may be implemented as a single position detection sensor such as a Hall sensor.

For example, the first sensor 240a and the second sensor 240b may be disposed or mounted on the lower surface of the circuit board 250, and the mounting grooves 215-1 and 215-2 may be provided on the upper surface of the base 210. may be provided, and the first and second sensors 240a and 240b may be disposed in the seating grooves 215-1 and 215-2 of the base 210, but are not limited thereto, and in other embodiments, the first And the second sensors may be disposed on the upper surface of the circuit board 250 .

The first sensor 240a may be disposed to face or overlap one of the first magnet 130-1 and the second magnet 130-2 in an optical axis direction.

The second sensor 240b may be disposed to face or overlap the third magnet 130-3 in the optical axis direction.

The first sensor 240a and the second sensor 240b may be electrically connected to terminals of the circuit board 250 . For example, a driving signal may be provided to each of the first sensor 240a and the second sensor 240b through terminals of the circuit board 250, and a driving signal of the first sensor 240a may be provided through terminals of the circuit board 250. The first output and the second output of the second sensor 240b may be output.

The controller 830 of the camera module 200 or the controller 780 of the portable terminal 200A uses the first output of the first sensor 240a and the second output of the second sensor 240b to displace the OIS movable unit. can be sensed or detected.

The first sensor 240a and the second sensor 240b may detect displacement of the OIS movable unit in a direction perpendicular to the optical axis OA.

The interaction between the first magnet 130-1 and the third coil unit 230-1, the interaction between the second magnet 130-2 and the fourth coil unit 230-2, and the third magnet 130 -3) and the fifth coil unit 230-3, the OIS movable part (eg, the housing 140) can move in a direction perpendicular to the optical axis, such as the x-axis and / or the y-axis direction, Accordingly, hand shake correction may be performed.

Next, the cover member 300 will be described.

The cover member 300 includes an OIS movable part, an upper elastic member 150, a lower elastic member 160, a second coil 230, a base 210, and a circuit board 250 in an accommodation space formed together with the base 210. ), the support member 220, and the second position sensor 240.

The cover member 300 may have a box shape with an open lower portion and include a top plate and side plates, and a lower portion of the cover member 300 may be coupled to an upper portion of the base 210 . The top plate of the cover member 300 may have a polygonal shape, for example, a quadrangle or an octagon.

The cover member 300 may have an opening in the upper plate through which a lens (not shown) coupled to the bobbin 110 is exposed to external light. The material of the cover member 300 may be a non-magnetic material such as SUS to prevent sticking to the magnet 130 . The cover member 300 may be formed of a metal plate, but is not limited thereto and may be formed of plastic. Also, the cover member 300 may be connected to the ground of the second holder 800 of the camera module 200 . The cover member 300 may block electromagnetic interference (EMI).

10A is a cross-sectional view of the lens driving device 100 in the AB direction of FIG. 3, FIG. 10B is a cross-sectional view of the lens driving device 100 in the CD direction of FIG. 3, and FIG. 10C is a cross-sectional view of the lens driving device 100 in the EF direction of FIG. 10D is a cross-sectional view of the lens driving device 100 in the GH direction of FIG. 3, FIG. 11 is a plan view of the second coil 230 of FIG. 9, and FIG. 12 is a cross-sectional view of the lens driving device 100. A perspective view of the first to third magnets 130-1 to 130-3, the dummy member 135, and the third to fifth coil units 230-1 to 230-5 is shown, and FIG. 12 is a side view of the components 130-1, 130-3, 230-1, 230-5, and 135, and FIG. 14 is a side view of the components 130-1, 130-3, and 230- 1, 230-5, 135) is a plan view.

Referring to FIGS. 10A to 14 , the first magnet 130-1 and the second magnet 130-2 may have the same length, width, and height, but are not limited thereto. In addition, the length, width, and height of the third coil unit 230-1 and the fourth coil unit 230-2 may be the same, but are not limited thereto.

12 and 13, lengths (L1, L2, L3), widths (W1, W2, W3) of the first magnet 130-1, the third magnet 130-3, and the dummy member 135, and the heights H1, H2, and H3 will be described. In addition, lengths M1 and M2, widths K1 and K2, and heights (length or thickness in the optical axis direction) of the third to fifth coil units 230-1 to 230-3 will also be described.

Here, the lengths L1 and L2 of each of the first to third magnets 130-1 to 130-3 may be the respective lengths in the longitudinal direction, and the length L3 of the dummy member 135 is the dummy member. It may be the length in the longitudinal direction of (135). In addition, the widths W1 and W2 of each of the first to third magnets 130-1 to 130-3 may be the length in the respective width direction, and the width W3 of the dummy member 135 is the dummy member. It may be the length of (135) in the width direction.

Here, the width direction may be perpendicular to the length direction, and may be a shorter direction in each configuration (130-1 to 130-3, 135). Also, the width of each of the elements 130-1 to 130-3 and 135 may be expressed as a "thickness" of each of the elements 130-1 to 130-3 and 135.

For example, the lengths L1 and L2 of the first to third magnets 130-1 to 130-3 are the first to third magnets 130-1 to 130-3 facing the bobbin 110, respectively. It may be the length of the first surface of the horizontal direction. In addition, the length L3 of the dummy member 135 may be the length of the first surface of the dummy member 135 facing the bobbin 110 in the horizontal direction.

In addition, for example, the first to third magnets 130-1 to 130-3 and the widths W1, W2, and W3 of the dummy member 135 are each of the elements 130-1 to 130-1 facing the bobbin 110. 130-3, 135) may be a distance from the first surface to the second surface opposite to the first surface.

Also, for example, the heights H1 , H2 , and H3 of each of the first to third magnets 130 - 1 to 130 - 3 and the dummy member 135 may be the length of each component in the optical axis direction.

Alternatively, for example, the heights H1 , H2 , and H3 may be lengths of the first surfaces of the respective components 130 - 1 to 130 - 3 and 135 facing the bobbin 110 in the longitudinal direction. Alternatively, for example, the heights H1, H2, and H3 may be distances from the lower surface to the upper surface of each of the components 130-1 to 130-3 and 135.

The lengths M1 and M2 of each of the third to fifth coil units 230-1 to 230-3 are in the longitudinal direction of the corresponding one of the first to third magnets 130-1 or parallel thereto. It can be a length in a direction. For example, M1 and M2 denote lengths in the longitudinal direction of the third to fifth coil units 230-1 to 230-3, and M1 and M2 are the lengths of the third to fifth coil units 230-1 to 230-3, respectively. It may be the length of both ends of the outer perimeter.

In addition, the lengths (X1, X2, Y1) of each of the third to fifth coil units 230-1 to 230-3 are the inner portions of each of the third to fifth coil units 230-1 to 230-3 ( or inner surface) may be the length of both ends.

In addition, the widths K1 and K2 of each of the third to fifth coil units 230-1 to 230-3 are in the width direction of the corresponding one of the first to third magnets 130-1 or parallel thereto. It can be a length in one direction.

The height of each of the third to fifth coil units 230-1 to 230-3 may be the length in the optical axis direction, and the heights of the third to fifth coil units 230-1 to 230-3 are different from each other. The heights of the third to fifth coil units 230-1 to 230-3 may be the same, but are not limited thereto, and in another embodiment, at least one of the heights of the third to fifth coil units 230-1 to 230-3 may be different from the rest.

The length L1 of the first magnet 130-1 may be smaller than the lengths M1 and X1 of the third coil unit 230-1 (L1<M1, X1). The length W1 of the first magnet 130-1 in the width direction may be smaller than the length K1 of the third coil unit 230-1 in the width direction (W1 < K1).

Also, the length of the second magnet 130-2 may be smaller than the lengths M1 and X2 of the fourth coil unit 230-2. A widthwise length of the second magnet 130-2 may be smaller than a widthwise length of the fourth coil unit 230-2.

The length L2 of the third magnet 130-3 may be smaller than the lengths M2 and Y1 of the fifth coil unit 230-3 (L2<M2, Y1). The length W2 of the third magnet 130-3 in the width direction may be smaller than the length K2 of the fifth coil unit 230-3 in the width direction (W2 < K2). In another embodiment, W2 and K2 may be the same.

The length M2 of the fifth coil unit 230-3 in the longitudinal direction is the length M1 of the third coil unit 230-1 in the longitudinal direction or/and the longitudinal direction of the fourth coil unit 230-2. can be longer than the length of (M2>M1). Also, the length Y1 of the fifth coil unit 230-3 may be longer than the length X1 of the third coil unit 230-1 or/and the length X2 of the fourth coil unit 230-2. Yes (Y1>X1,X2).

Also, for example, the length X1 of the third coil unit 230-1 and the length X2 of the fourth coil unit 230-2 may be equal to each other (X1=X2).

The length L2 of the third magnet 130-3 may be greater than the length L1 of the first magnet 130-1 or/and the length of the second magnet 130-2 (L2>L1).

Since M2>M1 and L2>L1, the first electromagnetic force generated by the fifth coil unit 230-3 and the third magnet 130-3 is applied to the third coil unit 230-1 and the first magnet ( 130-1) and the third electromagnetic force generated by the fourth coil unit 230-2 and the second magnet 130-2. Due to this, the embodiment can reduce the difference between the sum of the first electromagnetic force in the X-axis direction and the second and third electromagnetic forces in the Y-axis direction, and improve the reliability of the OIS operation.

In another embodiment, M2 may be M1, and L2 may be L1.

For example, L1:L2 = 1:1 to 1:1.5. Or, for example, L1:L2 = 1:1.2 to 1:1.4.

Also, the length K2 of the fifth coil unit 230-3 in the width direction is the length K1 of the third coil unit 230-1 in the width direction or/and the width of the fourth coil unit 230-2. It may be greater than the length of the direction (K2>K1), but is not limited thereto, and in another embodiment, both may be equal to each other.

The length W2 of the third magnet 130-3 in the width direction is greater than the length W1 of the first magnet 130-1 or/and the length of the second magnet 130-2 in the width direction. It may be large (W2>W1), but is not limited thereto, and may be W2=W1 in another embodiment.

For example, W1 may be the length in a direction perpendicular to the optical axis and one surface of the first magnet 130-1 (or the second magnet 130-2), and W2 is the length of the optical axis and the third magnet 130-3. It may be a length in a direction perpendicular to one side of the.

Since W2 > W1, the embodiment can reduce the difference between the sum of the first electromagnetic force in the X-axis direction and the second and third electromagnetic forces in the Y-axis direction, and improve reliability of OIS operation.

The height H2 of the third magnet 130-3 may be the same as the height H1 of the first magnet 130-1 or/and the height of the second magnet 130-2 (H2=H1 ). Here, H1 and H2 may be lengths of the magnets 130-1 to 130-3 in the optical axis direction. Alternatively, H1 may be the distance from the lower surface to the upper surface of the first magnet 130-1 (or the second magnet 130-2), and H2 may be the distance from the lower surface to the upper surface of the third magnet 130-3. may be

That is, the length of the third magnet 130-3 in the optical axis direction may be the same as the length of the first magnet 130-1 in the optical axis direction and/or the length of the second magnet 130-2 in the optical axis direction. can

Also, for example, the length of the first magnet 130-1 in the optical axis direction and the length of the second magnet 130-2 in the optical axis direction may be the same.

Referring to FIG. 11 , each of the third to fifth coil units 230-1 to 230-3 may have a ring shape having a hole open toward the optical axis.

The length L3 of the dummy member 135 may be smaller than the length L2 of the third magnet 130-3 in the longitudinal direction (L3<L2), and the length W3 of the dummy member 135 in the width direction may be smaller than the length W2 of the third magnet 130-3 in the width direction (W3<W2).

Since W3 < W2, the embodiment can secure a sufficient space for disposing the circuit board 190 and the first position sensor 170, and the circuit board 190, the first position sensor 170 and the dummy. Spatial interference between members 135 can be prevented.

In another embodiment, W3 = W2 or L2 = L3.

In addition, the first separation distance in the optical axis direction between the first magnet 130-1 and the third coil unit 230-1 and the optical axis direction between the second magnet 130-2 and the fourth coil unit 230-2 The second separation distance to and the third separation distance in the optical axis direction between the third magnet 130-3 and the fifth coil unit 230-3 may be the same, but is not limited thereto.

In another embodiment, the third separation distance may be smaller than the first separation distance and/or the second separation distance. And since the third separation distance is smaller than the first separation distance and/or the second separation distance, compared to the case where the first to third separation distances are all the same, in another embodiment, the electromagnetic force generated in the X-axis direction and the Y-axis direction It is possible to further reduce the difference in electromagnetic force generated in the direction.

The height H3 of the dummy member 135 may be smaller than or equal to the height H2 of the third magnet 130-3, but is not limited thereto. In another embodiment, the height H3 of the dummy member 135 may be greater than the height H2 of the third magnet 130-3.

Referring to FIG. 10A , for example, the height of the upper surface of the dummy member 135 disposed on the housing 140 may be lower than the height of the upper surface of the position sensor 170, and may be higher than the height of the lower surface of the position sensor 170. there is. Alternatively, the height of the upper surface of the dummy member 135 may be equal to or lower than the height of the lower surface of the position sensor 170 .

For example, at the initial position of the bobbin 110, the height of the upper surface of the dummy member 135 disposed on the housing 140 may be lower than the height of the upper surface of the sensing magnet 180, and the height of the lower surface of the sensing magnet 180. can be higher Alternatively, at the initial position of the bobbin 110, the height of the upper surface of the dummy member 135 may be equal to or lower than the height of the lower surface of the sensing magnet 180.

For example, the height of the upper surface of the dummy member 135 may be lower than the height of the upper surface of the third magnet 130-3, but is not limited thereto. In another embodiment, the height of the upper surface of the dummy member 135 may be higher than or equal to the upper surface of the third magnet 130-3.

The height of the lower surface of the dummy member 135 may be lower than the height of the lower surface of the third magnet 130-3, but is not limited thereto. In another embodiment, the height of the lower surface of the dummy member 135 may be higher than or equal to the height of the lower surface of the third magnet 130-3.

Referring to FIG. 10C , for example, the height of the upper surface of the dummy member 135 may be lower than the height of the upper surface of the second magnet 130-2 (or the first magnet 130-1), but is not limited thereto. . In another embodiment, the height of the upper surface of the dummy member 135 may be higher than or equal to the height of the upper surface of the second magnet 130-2 (or the first magnet 130-1).

In addition, the height of the lower surface of the dummy member 135 may be lower than the height of the lower surface of the second magnet 130-2 (or the first magnet 130-1), but is not limited thereto. In another embodiment, the dummy member ( 135) may be higher than or equal to the height of the lower surface of the second magnet 130-2 (or the first magnet 130-1).

In order to reduce magnetic field interference between magnets included in adjacent lens driving devices in a dual or more camera module, three magnets 130-1 to 130-3 and three OIS coil units corresponding to the three magnets 130-1 to 130-3 It includes (230-1 to 230-3).

Among the three magnets 130-1 to 130-3, two magnets 130-1 and 130-2 interact with the first and second coil units 120-1 and 120-2. At the same time as performing the AF operation, the OIS operation in the Y-axis direction may be performed by interaction with the third and fourth coil units 230-1 and 230-4.

The other magnet 130-3 among the three magnets 130-1 to 130-3 may perform only OIS operation in the X-axis direction by interaction with the fifth coil unit 230-3. .

By disposing the dummy member 135 on the opposite side of the third magnet 130-3, the embodiment can prevent oscillation due to eccentric weight during OSI operation.

Each of the first to third magnets 130-1 to 130-3 may be a unipolar magnetized magnet having one N pole and one S pole. For example, in each of the first and second magnets 130-1 and 130-2, the first surface facing the first coil 120 (or the outer surface of the bobbin 110) is the N pole, and the first surface is The opposite second surface may be disposed to have an S pole, but is not limited thereto, and may be disposed to have an opposite polarity. Positions of the S poles and the N poles of the first and second magnets 130-1 and 130-2 may be set according to the arrangement of the first coil 120 so that electromagnetic force can be generated by interaction.

In addition, for example, the third magnet 130-3 may be arranged so that the first surface facing the outer surface of the bobbin 110 is N pole and the second surface opposite to the first surface is S pole, but is limited thereto. It is not, and may be arranged to have the opposite polarity.

Alternatively, in another embodiment, N poles and S poles of the first to third magnets 130-1 to 130-3 may be arranged in the optical axis direction.

15 shows first to third magnets 130-1a, 130-2a, and 130-3a according to another embodiment. In FIG. 15, the same reference numerals as those in FIG. 12 denote the same components, and descriptions of the same components are simplified or omitted.

Referring to FIG. 15, the first magnet 130-1a is disposed between the first magnet part 11a, the second magnet part 11b, and the first magnet part 11a and the second magnet part 11b. It may include a first barrier rib (11c) to be.

The second magnet 130-2a includes the third magnet part 12a, the fourth magnet part 12b, and the second partition wall 12c disposed between the third magnet part 12a and the fourth magnet part 12b. ) may be included.

The third magnet 130-3a includes the fifth magnet part 13a, the sixth magnet part 13b, and the third partition wall 13c disposed between the fifth magnet part 13a and the sixth magnet part 13b. ) may be included. Here, the first barrier rib 11c may be replaced with a "first non-magnetic barrier", the second barrier 12c may be replaced with a "second non-magnetic barrier", and the third barrier 13c may be expressed as a "third non-magnetic partition wall".

For example, the first magnet part 11a and the second magnet part 11b may be spaced apart from each other in the optical axis direction, and the third magnet part 12a and the fourth magnet part 12b may be spaced apart from each other in the optical axis direction. The fifth magnet part 13a and the sixth magnet part 13b may be spaced apart from each other in the optical axis direction.

The first magnet part 11a may include an N pole, an S pole, and a first interface 21a between the N pole and the S pole, and the second magnet part 11b may include the N pole, the S pole, and the N pole. It may include a second boundary surface 21b between the pole and the S pole.

Also, each of the third magnet part 12a and the fourth magnet part 12b may include an N pole, an S pole, and an interface between the N pole and the S pole. Also, each of the fifth magnet part 13a and the sixth magnet part 13b may include an N pole, an S pole, and an interface between the N pole and the S pole.

The first boundary surface 21a may include a section having almost no polarity as a portion having substantially no magnetism, and may be a naturally occurring portion to form a magnet consisting of one N pole and one S pole. . In addition, the second boundary surface 21b may include a section having almost no polarity as a portion having substantially no magnetism, and may be a portion naturally occurring to form a magnet consisting of one N pole and one S pole. there is.

The first barrier rib 11c separates or isolates the first magnet part 11a and the second magnet part 11b, and may be a part having substantially no polarity as a part having no magnetism. For example, the first barrier rib 11c may be made of a non-magnetic material or air. This barrier may be expressed as a “neutral zone” or a “neutral zone”.

The first partition wall 11c is a part artificially formed when the first magnet part 11a and the second magnet part 11b are magnetized, and the width W11 of the first partition wall 11c is the first boundary surface ( 21a) and the second boundary surface 21b may be larger than each other.

Here, the width W11 of the first partition wall 11c may be the length of the non-magnetic partition wall 11c in a direction from the first magnet part 11a to the second magnet part 11b. Alternatively, the width W11 of the first barrier rib 11c may be the length of the first barrier rib 11c in the optical axis direction.

For example, the width W11 of the first barrier rib 11c may be 0.2 [mm] to 0.5 [mm]. Alternatively, the width W11 of the first barrier rib 11c may be 0.3 [mm] to 0.4 [mm].

The first magnet part 11a and the second magnet part 11b may be disposed so that opposite polarities face each other in the optical axis direction.

For example, the N pole of the first magnet part 11a and the S pole of the second magnet part 11b may be arranged to face the first coil unit 120-1, but the present invention is not limited thereto, and vice versa. It can be.

The description of the boundary surfaces 21a and 21b of the first and second magnet parts 11a and 11b may be applied to the boundary surface of each of the third to sixth magnet parts 12a, 12b, 13a, and 13b. Also, the description of the above-described first barrier rib 11c may be applied to the second and third barrier ribs 12c and 13c.

Each of the first to third barrier ribs 11c, 12c, and 13c may extend in a horizontal direction or in a direction perpendicular to an optical axis.

The first magnet part 11a, the first barrier rib 11c, and the second magnet part 11b may be sequentially arranged in the optical axis direction. The third magnet part 12a, the second barrier rib 12c, and the fourth magnet part 12b may be sequentially disposed in the optical axis direction. Also, the fifth magnet part 13a, the third barrier rib 13c, and the sixth magnet part 13b may be sequentially arranged in the optical axis direction.

For example, the first magnet portion 11a may be disposed on the first barrier rib 11c, and the second magnet portion 11b may be disposed under the first barrier rib 11c. Also, the third magnet part 12a may be disposed on the second partition wall 12c, and the fourth magnet part 12b may be disposed below the second partition wall 12c. Also, the third magnet part 12a may be disposed on the second partition wall 12c, and the fourth magnet part 12b may be disposed below the second partition wall 12c. A fifth magnet part 13a may be disposed on the third partition wall 13c, and a sixth magnet part 13b may be disposed below the third partition wall 13c.

For example, each of the first to third barrier ribs 11c, 12c, and 13c may be parallel to a straight line perpendicular to the optical axis, and each of the first to sixth magnet parts 11a, 11b, 12a, 12b, 13a, and 13b The boundary surfaces (eg, 21a and 21b) of may be parallel to the optical axis.

For example, each of the first to third magnets 130-1 to 130-3 may have an N pole and an S pole of an anode magnetization disposed in an optical axis direction.

The first magnet 130 may be positioned inside the region of the third coil unit 230-1 and may overlap the third coil unit 230-1 in the optical axis direction.

The second magnet 130 may be positioned inside the region of the fourth coil unit 230-2 and may overlap the fourth coil unit 230-2 in the optical axis direction.

The third magnet 130 may be located inside the area of the fifth coil unit 230-3 and may overlap the fifth coil unit 230-3 in the optical axis direction.

Any one part of the third coil unit 230-1 is the first polarity part of the first magnet part 11a, the first partition wall 11c, and the second polarity part of the second magnet part 11b in the optical axis direction. and can overlap at the same time. Here, the first polarity portion may be an N pole or an S pole, and the second polarity portion may be a polarity portion opposite to the first polarity.

Any one part of the fourth coil unit 230-2 is the first polarity part of the third magnet part 12a, the second partition wall 12c, and the second polarity part of the fourth magnet part 12b in the optical axis direction. and can overlap at the same time.

Any one part of the fifth coil unit 230-3 is the first polarity part of the fifth magnet part 13a, the third partition wall 13c, and the second polarity part of the sixth magnet part 13b in the optical axis direction. and can overlap at the same time.

In another embodiment, the first and second magnets may be monopole magnetized magnets of FIG. 12 , and the third magnet may be bipolar magnetized magnets of FIG. 15 .

16A shows first to third magnets 130-1a, 130-2a, and 130-3b according to another embodiment, and FIG. 16B shows the first to third magnets 130-1a, 130-1a, and 130-3b of FIG. 130-2a, 130-3b) and the third to fifth coil units 230-1 to 230-3, and FIG. 16C is a lens driving device including the third magnet 130-3b of FIG. 16A. 16d is a cross-sectional view of the third magnet 130-3b of FIG. 16a for the fifth coil unit 230-3, and the first magnet for the third coil unit 230-1. It shows the magnetic force line of (130-1a).

In FIG. 16A, the same reference numerals as those in FIG. 15 denote the same components, and descriptions of the same components are simplified or omitted.

16A to 16D, the third magnet 130-3b includes a fifth magnet part 1013a, a sixth magnet part 1013b, and a fifth magnet part 1013a and a sixth magnet part 1013b. A third barrier rib 1013c disposed therebetween may be included.

The definitions of the boundary surfaces 21a and 21b described above may be applied to the boundary surface 22a of the fifth magnet part 1013a and the boundary surface 22b of the sixth magnet part 1013b. The third barrier rib 1013c is a portion artificially formed when the fifth magnet portion 1013a and the sixth magnet portion 1013b are magnetized, and the width W12 of the third barrier rib 1013c is the boundary surface 22a, 22b) may be larger than each width. Here, the width W12 of the third barrier rib 1013c may be the length of the third barrier rib 1013c in a direction from the fifth magnet portion 1013a to the sixth magnet portion 1013b.

For example, the width W12 of the third barrier rib 1013c may be 0.2 [mm] to 0.5 [mm]. Alternatively, the width W12 of the third barrier rib 1013c may be 0.3 [mm] to 0.4 [mm].

The fifth magnet part 1013a and the sixth magnet part 1013b may be disposed so that opposite polarities face each other in a direction perpendicular to the optical axis OA and toward the third magnet 130-3b from the optical axis OA. .

For example, the N pole and the S pole of the sixth magnet part 1013b may be disposed to face the outer surface of the bobbin 110 corresponding to the third side surface 141-3 of the housing 140, but are limited thereto. No, it can be arranged vice versa.

The third barrier rib 1013c may extend in an optical axis direction or a vertical direction.

The fifth magnet portion 1013a, the third barrier 1013c, and the sixth magnet portion 1013b are sequentially perpendicular to the optical axis OA and in a direction from the third magnet 130-3b toward the optical axis OA. can be placed.

For example, the fifth magnet part 1013a may be disposed on the left (or right) side of the third partition 1013c, and the sixth magnet part 1013b may be disposed on the right (or left) side of the third partition 13c. can

For example, the third barrier rib 1013c may be parallel to the optical axis, and the boundary surfaces 22a and 22b of the fifth and sixth magnet parts 1013a and 1013b may be parallel to a direction perpendicular to the optical axis.

The separation or isolation direction of the third barrier rib 1013c may be perpendicular to the separation or isolation direction of each of the first and second barrier ribs 1011c and 1012c.

The length W21 of the third magnet 130-3b in the width direction is greater than the length W1 of the first magnet 130-1a or/and the length of the second magnet 130-2a in the width direction. It can be large (W21>W1). Since W2 > W1, the embodiment can reduce the difference between the sum of the first electromagnetic force in the X-axis direction and the second and third electromagnetic forces in the Y-axis direction, and improve reliability of OIS operation.

The height H21 of the third magnet 130-3b may be smaller than the height H1 of the first magnet 130-1a or/and the height of the second magnet 130-2a (H21<H1). .

That is, the length of the third magnet 130-3b in the optical axis direction may be shorter than the length of the first magnet 130-1a in the optical axis direction and/or the length of the second magnet 130-2a in the optical axis direction. there is. Since H21<H1, the embodiment can reduce the weight of the lens driving device, thereby reducing power consumption for AF driving and/or OIS driving.

For example, the upper surface of the third magnet 130-3b may be higher than or equal to the boundary line between the second magnet portion 11b of the first magnet 130-1a and the first barrier rib 11c. It may have the same height as or lower than the upper surface of the magnet part 11a.

Also, for example, H21:H1 = 0.3:1 to 1:1. When H21/H1 is less than 0.3, the first electromagnetic force generated by the fifth coil unit 230-3 and the third magnet 130-3b is too reduced, so that the electromagnetic force in the X-axis direction and the electromagnetic force in the Y-axis direction The difference may increase, and thus reliability of OIS driving may be deteriorated.

When H21/H1 is greater than 1, the first electromagnetic force in the X-axis direction increases, and as a result, the difference between the electromagnetic force in the X-axis direction and the electromagnetic force in the Y-axis direction increases, and reliability of OIS driving may deteriorate.

Or, for example, H21:H1 = 0.5:1 to 0.8:1.

Referring to FIG. 16B , each of the third to fifth coil units 230-1 to 230-3 may have a ring shape having a hole open toward an optical axis.

The length R1 of the hole of the fifth coil unit 230-3 in the direction perpendicular to the longitudinal direction of the fifth coil unit 230-3 is the direction perpendicular to the longitudinal direction of the third coil unit 230-1. may be smaller than the length (R2) of the hole of the third coil unit 230-1 to (R1<R2). Also, R1 may be smaller than the length of the hole of the fourth coil unit 230-2 in a direction perpendicular to the longitudinal direction of the fourth coil unit 230-2.

This is because the magnetization directions of the first magnet 130-1a and the third magnet 130-3b are different from each other, and thus the distributions of the lines of magnetic force are also different from each other. Considering the distribution of the lines of magnetic force, R2 > R1, so that the electromagnetic force between the first magnet 130-1a and the third coil unit 230-1, the second magnet 130-2a and the fourth coil unit 230 -2) and the electromagnetic force between the third magnet 130-3b and the fifth coil unit 230-3 can all be improved.

Referring to FIG. 16C , the height of the upper surface of the dummy member 135 may be higher than or equal to the height of the upper surface of the third magnet 130-3b, but is not limited thereto. In another embodiment, the height of the upper surface of the dummy member 135 may be lower than that of the upper surface of the third magnet 130-3b.

The height of the lower surface of the dummy member 135 may be lower than the height of the lower surface of the third magnet 130-3b, but is not limited thereto. In another embodiment, the height of the lower surface of the dummy member 135 may be higher than that of the lower surface of the third magnet 130-3b.

Also, the height of the upper surface of the dummy member 135 may be lower than the height of the upper surface of the second magnet 130-2a (or the first magnet 130-1a), and the height of the upper surface of the second magnet 130-2a (or the first magnet 130-1a). It may be higher than the height of the lower surface of the magnet 130-1a.

In addition, the height of the lower surface of the dummy member 135 may be lower than the height of the lower surface of the second magnet 130-2a (or the first magnet 130-1a), but is not limited thereto. In another embodiment, the dummy member ( 135) may be higher than that of the second magnet 130-2a (or the first magnet 130-1a).

In the embodiment, in order to reduce magnetic field interference between magnets included in adjacent lens driving devices in a dual or more camera module, three magnets 130-1a, 130-2a, and 130-3b and three corresponding magnets 130-1a, 130-2a, and 130-3b It includes coil units 230-1 to 230-3 for OIS.

Each of the first and second magnets 130-1a and 130-2a has a magnetization direction in which two magnet parts 11a and 11b and 12a and 12b are vertically arranged with respect to the partition walls 11c and 12c. can In addition, the first and second parts 3a and 3b of the first and second coil units 120-1 and 120-2 face each other with the two magnet parts 11a and 11b and 12a and 12b. can be placed. Due to this arrangement, the electromagnetic force between the first magnet 130-1a and the first coil unit 120-1 and the electromagnetic force between the second magnet 130-2a and the second coil unit 120-2 can be improved. , the current consumption can be reduced.

In general, the electromagnetic force in the X-axis direction due to the interaction between one magnet and one coil unit is smaller than the electromagnetic force in the Y-axis direction due to the interaction between two magnets and two coil units. Also, the difference between the electromagnetic force in the X-axis direction and the electromagnetic force in the Y-axis direction may cause malfunction of the OIS drive.

In order to reduce the difference between the electromagnetic force generated in the X-axis direction and the electromagnetic force generated in the Y-axis direction, the embodiment may be configured as follows.

The magnetization direction of the two magnet parts 1013a and 1013b of the third magnet 130-3b is changed to the two magnet parts 11a and 11b and 12a and 12b of the first and second magnets 130-1a and 130-2a. ) to be perpendicular to the direction of magnetization.

For example, the third partition wall 1013c separating the two magnet parts 1013a and 1013b of the third magnet 130-3b is perpendicular to the fifth coil unit 230-3 so that the third magnet 130-3b is perpendicular to the third magnet 130-3b. ) may be disposed on the fifth coil unit 230-3.

For example, the third magnet 130-3b may be disposed so that the third nasal barrier 1013c is parallel to the optical axis direction.

Alternatively, for example, the N pole of one of the two magnet parts 1013a and 1013b of the third magnet 130-3b and the S pole of the other face the fifth coil unit 230-3 in the optical axis direction. A third magnet 130-3b may be arranged to see.

On the other hand, the first magnet 130-1a may be disposed on the third coil unit 230-1 such that the first barrier 11c is horizontal with the third coil unit 230-1, and the second barrier rib The second magnet 130-2a may be disposed on the fourth coil unit 230-2 so that (12c) is level with the fourth coil unit 230-2.

Also, for example, the first and second magnets 130-1a and 130-2a may be disposed such that each of the first barrier rib 11c and the second barrier rib 12c is parallel to the optical axis direction.

Alternatively, for example, both the N pole and the S pole of one of the two magnet parts 11a and 11b of the first magnet 130-1a may face the third coil unit 230-1 in the optical axis direction. N pole and S pole of any one of the two magnet parts 12a and 12b of the second magnet 130-2a may face the fourth coil unit 230-2 in the optical axis direction. .

Also, the length L2 of the third magnet 130-3b is greater than the length L1 of the first magnet 130-1a or/and the length of the second magnet 130-2a, and the fifth coil unit 230 The length M2 of -3) is greater than the length M1 of the third coil unit 230-1 or/and the length of the fourth coil unit 230-2, and thus the electromagnetic force generated in the X-axis direction and A difference in electromagnetic force generated in the Y-axis direction may be reduced.

Referring to FIG. 16D, the lines of magnetic force of the third magnet 130-3b for the fifth coil unit 230-3 and the lines of magnetic force of the first magnet 130-1a for the third coil unit 230-1 are the directions are different.

Since the arrangement of the second magnet 130-2a is the same as or similar to that of the first magnet 130-1a, the lines of magnetic force of the second magnet 130-2a with respect to the fourth coil unit 230-2 are It may be the same as or similar to the line of magnetic force of the first magnet 130-1a for the third coil unit 230-1.

The first electromagnetic force generated by the magnetic field lines MF2 of the fifth coil unit 230-3 and the third magnet 130-3b is It may be greater than the second electromagnetic force generated by the lines of magnetic force MF1.

In addition, the first electromagnetic force generated by the lines of magnetic force MF2 of the fifth coil unit 230-3 and the third magnet 130-3 is generated by the fourth coil unit 230-2 and the second magnet 130-2a. may be greater than the third electromagnetic force generated by the lines of magnetic force MF1.

Since the first electromagnetic force is greater than the second electromagnetic force and the third electromagnetic force, respectively, the sum of the second electromagnetic force and the third electromagnetic force can be designed to be almost similar to the first electromagnetic force, and therefore, the embodiment is in the X-axis direction when the OIS is driven. The difference between the electromagnetic force in the Y-axis direction and the electromagnetic force in the Y-axis direction can be reduced.

FIG. 17A is a cross-sectional view of the first dotted line portion 60A of the third coil unit 230-1 of FIG. 11, and FIG. 17B is a cross-sectional view of the first and second vias 55a, 55b), FIG. 18a is a cross-sectional view of the second dotted line portion 60B of the fifth coil unit 230-3 of FIG. 11, and FIG. 18b is a cross-sectional view of the fifth coil unit 230-3. 2 vias 56a and 56b are shown. The description of the third coil unit 230-1 of FIG. 17 may be applied or applied mutatis mutandis to the structure and shape of the fourth coil unit 230-2.

Referring to FIGS. 11 and 17A to 18B , the second coil 230 may be formed on a substrate 231, and the substrate 231 has a first side 23a and a second side 23b facing each other. , a third side 23c and a fourth side 23d facing each other, and an opening 231a.

The third coil unit 230 - 1 may be disposed in the first region Re1 located between the first side 23a of the circuit member 231 and the opening 231a of the circuit member 231 . It may have one turn (or first winding number).

The fourth coil unit 230 - 2 may be disposed in the second region Re2 located between the second side 23b of the circuit member 231 and the opening 231a of the circuit member 231 . It may have 2 turns (or the second number of turns).

The fifth coil unit 230 - 3 may be disposed in the third region Re3 located between the third side 23c of the circuit member 231 and the opening 231a of the circuit member 231 . It can have 3 turns (or 3 turns). Here, each of the first to fourth sides 23a to 23d of the circuit member 231 may correspond to one of the first to fourth side parts 141 - 1 to 141 - 4 of the housing 140 .

Referring to FIG. 17A , the third coil unit 230-1 may include a first line having a plurality of turns.

The third coil unit 230 - 1 may have a first pattern PA1 having a continuous spiral, elliptical, or/and track shape.

The fourth coil unit 230-2 may have the same shape as the third coil unit 230-1. That is, the fourth coil unit 230 - 2 may include a second line having a plurality of turns.

For example, the fourth coil unit 230-2 may have a second pattern having a continuous spiral or/and track shape. For example, the second pattern may be the same as the first pattern PA1.

Referring to FIG. 18A , the fifth coil 230-3 may include a third line having a plurality of turns.

For example, the fifth coil unit 230 - 3 may have a third pattern PA2 having a continuous spiral or/and track shape.

The first pattern PA1 may be formed in the first region Re1 of the substrate 231, the second pattern may be formed in the second region Re2 of the substrate 231, and the third pattern PA2 ) may be formed in the third region Re2 of the substrate 231 .

For example, the first to third patterns PA1 and PA2 may be made of a conductor. For example, the first to third patterns PA1 and PA2 may be made of a conductive metal, such as copper, gold, aluminum, silver, or an alloy including at least one of these.

The width A2 of the third line of the fifth coil unit 230-3 is the width A1 of the first line of the third coil unit 230-1 and the width A2 of the fourth coil unit 230-2. It is smaller than the line width (A1).

For example, the width A2 (or line width) of the third pattern PA2 of the fifth coil unit 230-3 is the width of the first pattern PA1 of the third coil unit 230-1. (A1) (or line width) and smaller than the width (A1) (or line width) of the second pattern of the fourth coil unit 230-1 (A2<A1).

Here, the width of each of the first to third patterns PA1 and PA2 may be the length in the width direction perpendicular to the length direction of each of the first to third patterns PA1 and PA2 .

The width of the first line of the third coil unit 230-1 and the width of the second line of the fourth coil unit 230-2 may be equal to each other. For example, the width A1 of the first pattern PA1 of the third coil unit 230-1 and the width of the second pattern of the fourth coil unit 230-1 may be equal to each other.

The ratio of A2 and A1 (A2:A1) may be 1:1.2 to 1:2.

When the value obtained by dividing A1 by A2 (A1/A2) is less than 1.2, the number of turns of the fifth coil unit 230-3 and the number of turns of the third coil unit 230-1 or the fourth coil unit 230-2 The difference between is reduced, whereby the Y-axis direction by the interaction between the first and second magnets 130-1 and 130-2 and the third and fourth coil units 230-1 and 230-2 Since the difference between the electromagnetic force in the X-axis direction due to the interaction between the third magnet 130-3 and the fifth coil unit 230-3 cannot be reduced, the reliability of OIS operation may deteriorate.

When the value obtained by dividing A1 by A2 (A1/A2) is greater than 2, the resistance of the fifth coil unit 230-3 increases, resulting in an increase in power consumption or the loss of the driving signal of the fifth coil unit 230-3. size can be increased.

For example, the ratio of A2 and A1 (A2:A1) may be 1:1.25 to 1:1.5.

For example, the width A1 of each of the first and second patterns PA1 may be 24 [μm] to 30 [μm], and the width A2 of the third pattern PA2 may be 15 [μm] to 20 [μm]. [μm].

The height (or thickness) of the third coil unit 230-1 may be the same as the height (or thickness) of the fourth coil unit 230-2. For example, the height of the first pattern PA1 and the height T1 of the second pattern may be equal to each other.

Also, the height T2 (or thickness) of the third pattern PA2 may be the same as the height T1 (or thickness) of the first and second patterns PA1 (T2=T1). For example, T1=T2=45 [μm] to 50 [μm]. Here, T1 may be the length of the first and second patterns PA1 in the optical axis direction, and T2 may be the length of the third pattern PA2 in the optical axis direction.

The width of each of the lines of the third to fifth coil units 230-1 to 230-3 may be smaller than the height (or thickness) of each of the third to fifth coil units 230-1 to 230-3. can

Widths A1 and A2 of each of the first to third patterns PA1 and PA2 may be smaller than heights T1 and T2 (or thickness) of each of the first to third patterns P1 and PA2. (A1, A2 < T1, T2).

17 and 18 illustrate that each of the third to fifth coil units 230-1 to 230-3 has a secondary layer structure, but is not limited thereto. In another embodiment, each of the third to fifth coil units 230-1 to 230-3 may have a first layer structure or a third or higher layer structure.

For example, each of the first pattern PA1 of the third coil unit 230-1 and the second pattern of the fourth coil unit 230-2 may be a spiral pattern having a first number of turns.

Each of the third to fifth coil units 230-1 to 230-3 includes a first layer (Layer11, Layer21) and a second layer (Layer12, Layer22) disposed on the first layer (Layer11, Layer21). can do.

For example, each of the first and second patterns PA1 is arranged on a first layer Layer 11 having a continuous spiral, elliptical or track shape and is disposed on the first layer 11 and has a continuous spiral, elliptical or track shape. It may include a second layer (Layer12) having.

Also, for example, the third pattern PA2 of the fifth coil unit 230 - 3 may be a spiral pattern having a second number of turns greater than the first number of turns.

For example, the third pattern PA2 includes a first layer (Layer21) having a continuous spiral, elliptical or track shape and a second layer (Layer 21) disposed on the first layer (Layer21) and having a continuous spiral, ellipse or track shape ( Layer 22) may be included.

The width of the third line of each of the first and second layers Layer11 and Layer12 of the fifth coil unit 230-3 is the width of the first line of the first and second layers of the third coil unit 230-1. It may be smaller than the width of the second line of the first and second layers of the fourth coil unit 230-2.

The width A2 of each of the first and second layers Layer21 and Layer22 of the third pattern PA2 is the width of each of the first and second layers Layer11 and Layer12 of the first and second patterns PA1. smaller than

The third coil unit 230-1 is directed from the first side 23a to the second side 23b or from the third coil unit 230-1 to the fourth coil unit 230-2. may include a plurality of lines arranged in the first region Re1.

The first layer Layer 11 of the first pattern PA1 is directed from the first side 23a to the second side 23b or from the third coil unit 230-1 to the fourth coil unit 230-2. ) may include a plurality of first lines R1 to Rn arranged in the first region Re1 in a direction toward.

In addition, the second layer (Layer12) of the first pattern PA1 is directed from the first side 23a to the second side 23b or from the third coil unit 230-1 to the fourth coil unit 230- 2) may include a plurality of second lines Q1 to Qn arranged in the first region Re1 in a direction toward.

The fourth coil unit 230-2 is directed from the first side 23a to the second side 23b of the substrate 231 or from the third coil unit 230-1 to the fourth coil unit 230-2. ) may include a plurality of lines arranged in the second region Re2 in a direction.

The first layer and the second layer of the second pattern are directed from the first side 23a to the second side 23b of the substrate 231 or from the third coil unit 230-1 to the fourth coil unit 230 -2) may include a plurality of lines (eg, R1 to Rn, Q1 to Qn) arranged in the second region Re2.

The fifth coil unit 230-3 is formed in a direction from the third side 23c to the fourth side 23d or from the third coil unit 230-1 to the fourth coil unit 230-2. It may include a plurality of lines arranged in the third region Re3 in a vertical direction.

Also, the first layer Layer 21 of the third pattern PA2 is directed from the third side 23c to the fourth side 23d or from the third coil unit 230-1 to the fourth coil unit 230-2. ) may include a plurality of first lines S1 to Sm arranged in the third region Re3 in a direction perpendicular to the direction.

The second layer (Layer22) of the third pattern PA2 is directed from the third side 23c to the fourth side 23d or from the third coil unit 230-1 to the fourth coil unit 230-2. It may include a plurality of second lines P1 to Pm arranged in the third region Re3 in a direction perpendicular to the direction toward. The “lines” may be expressed as “conductive lines” or “coil pattern lines” instead.

For example, the second lines Q1 to Qn and P1 to Pm of each of the first to third patterns PA1 and PA2 may be disposed on the first lines R1 to Rn and S1 to Sm.

A width of each of the first lines R1 to Rn and S1 to Sm may be greater than a distance between the first lines R1 to Rn and S1 to Sm, and a width of each of the second lines Q1 to Qn and P1 to Pm. ) may be larger than the distance between the second lines Q1 to Qn and P1 to Pm.

For example, the width of each of the first lines R1 to Rn and S1 to Sm may be greater than the shortest distance between the first lines R1 to Rn and S1 to Sm, and the second lines Q1 to Qn, A width of each of P1 to Pm may be greater than the shortest distance between the second lines Q1 to Qn and P1 to Pm.

For example, the number of first lines (R1 to Rn, n>1, a natural number) and second lines (Q1 to Qn, n>1, a natural number) of each of the first and second patterns PA1 are can be the same

Also, for example, the first lines (Q1 to Qn, n > 1, a natural number) and the second lines (Q1 to Qn, n > 1, a natural number) may be aligned or overlap each other in the optical axis direction. It is not.

For example, the number of first lines (S1 to Sm, m>n>1, natural number) and second lines (P1 to Pm, m>n>1, natural number) of the third pattern PA2 are the same. can do. Also, for example, the first lines (S1 to Sm, where m>n>1 is a natural number) and the second lines (P1 to Pm, where m>n>1 is a natural number) of the pattern PA2 are aligned in the optical axis direction. or may overlap, but is not limited thereto.

The distance B1 between the first lines R1 to Rn of each of the first and second patterns PA1 is smaller than the width A1 of each of the first lines R1 to Rn (B1<A1). . Also, the distance B1 between the second lines Q1 to Qn of the first and second patterns PA1 is smaller than the width A1 of each of the second lines Q1 to Qn (B1< A1).

The distance B1 between the first lines S1 to Sm of the third pattern PA3 is smaller than the width A2 of each of the first lines S1 to Sm (B1 < A2). Also, the distance B1 between the second lines P1 to Pm is smaller than the width A2 of each of the second lines P1 to Pm (B1 < A2). For example, B1 may be 10 [μm] to 13 [μm].

A width of each of the first lines R1 to Rn of each of the first and second patterns PA1 and a width of each of the second lines Q1 to Qn may be the same, but are not limited thereto. In another embodiment, the width of each of the first lines R1 to Rn and the width of each of the second lines Q1 to Qn may be different from each other.

The width of each of the first lines S1 to Sm and the width of each of the second lines P1 to Pm of the third pattern PA2 may be the same, but are not limited thereto. In another embodiment, the width of each of the first lines S1 to Sm may be different from the width of each of the second lines P1 to Pm.

The width of each of the first lines S1 to Sm of the third pattern PA2 is the width of each of the first lines R1 to Rn of each of the first and second patterns PA1 and the width of the second lines ( Q1 to Qn) may be smaller than the respective widths.

The width of each of the second lines P1 to Pm of the third pattern PA2 is the width of each of the first lines R1 to Rn of each of the first and second patterns PA1 and the second lines ( Q1 to Qn) may be smaller than the respective widths.

For example, the first length d1 in the width direction of the first pattern PA1 (or second pattern) of the third coil unit 230-1 (or the fourth coil unit 230-2) is It may be equal to the second length d2 in the width direction of the third pattern PA2 of the unit 230 - 3 , but is not limited thereto.

d1 may be the distance between both ends of the outermost surfaces of the first and second coil units 230-1 and 230-2 facing each other, and d2 may be the distance between the outermost ends of the third coil unit 230-3 facing each other. It may be the distance between both ends of the perimeter. For example, d1 may be the length of the central portion of each of the first and second coil units 230-1 and 230-2, and d2 may be the length of the central portion of the third coil unit 230-3. . d1 and d2 may be lengths in the width direction of each of the first to third coil units 230-1 to 230-3. Alternatively, for example, d1 and d2 may be lengths in a direction from the sides 23a, 23b, and 23c of the circuit member 231 on which the first to third coil units are disposed toward the opening 231a.

For example, the distance between the opposite ends of the outermost spiral patterns of the first and second patterns PA1 is the distance between the opposite ends, and the second length is the distance between the opposite ends of the outermost spiral patterns of the third pattern PA2. may be the distance.

For example, d1 is the distance between the outermost opposite ends of the outermost lines Rn and Qn among the first lines R1 to Rn (or the second lines Q1 to Qn) of FIG. 17A. can be Also, for example, d2 is the distance between the outermost ends facing each other of the outermost lines Sm and Pm among the first lines S1 to Sm (or the second lines P1 to Pm) of FIG. 18A. may be the distance.

In another embodiment, the width d2 of the fifth coil unit 230-3 may be greater than the width d1 of the third coil unit 230-1 (or the fourth coil unit 230-2). For example, the second length d2 of the third pattern PA2 in the width direction may be greater than the first length d1 of the first pattern PA1 (or the second pattern) in the width direction.

In another embodiment, the width d2 of the fifth coil unit 230-3 may be smaller than the width d1 of the third coil unit 230-1 (or the fourth coil unit 230-2). . For example, the second length d2 of the third pattern PA2 in the width direction may be smaller than the first length d1 of the first pattern PA1 (or the second pattern) in the width direction.

For example, the second coil 230 may include the first insulating layer 71 and the first layer of the third to fifth coil units 230-1 to 230-3 disposed on the first insulating layer 71 ( Layer11 and Layer21), the second insulating layer 73 disposed on the first layer (Layer11 and Layer21), the second layer (Layer12 and Layer22) disposed on the second insulating layer 73, and the second layer ( A third insulating layer 75 disposed on Layer 12 and Layer 22 may be included.

Each of the first and third insulating layers 71 and 75 may include a polymeric organic compound or resin. For example, each of the first and third insulating layers 71 and 75 may include polyimide and solder-resist.

The second insulating layer 73 may include a polymeric organic compound or resin. For example, the second insulating layer 73 may include a polyimide and epoxy bond.

A fourth insulating layer 72 may be disposed between the first lines R1 to Rn and S1 to Sm of the first to third patterns PA1 and PA2 , and the first to third patterns ( A fifth insulating layer 74 may be disposed between the respective second lines Q1 to Qn and P1 to Pm of PA1 and PA2 .

Each of the third to fifth coil units 230-1 to 230-3 includes at least one via 55a, 55b, 56a, 56b), and the first layer ((Layer11, Layer21) and the second layer (Layer12, Layer22) are electrically connected (eg, parallel connection) through at least one via (55a, 55b, 56a, 56b) ) can be

Each of the third and fourth coil units 230-1 and 230-2 includes one end of one of the first lines R1 to Rn (eg, R1) and one of the second lines Q1 to Qn. A first via 55a connecting one end (eg, Q1) may be provided.

In addition, each of the third and fourth coil units 230-1 and 230-2 has one end of the other one (eg, Rn) of the first lines R1 to Rn and the second lines Q1 to Qn. A second via 55b connecting one end of another one (eg, Qn) of the first via 55b may be provided.

The first and second vias 55a and 55b of each of the third and fourth coil units 230-1 and 230-2 may pass through or pass through the insulating layer 73, but are not limited thereto. .

The first and second vias 55a and 55b of each of the third and fourth coil units 230-1 and 230-2 have first lines R1 to Rn and second lines Q1 to Qn. ) can be electrically connected. Here, the via may be expressed as a “contact” or a “connection electrode” or a “connection pattern”.

In addition, the fifth coil unit 230 - 3 includes one end of one of the first lines S1 to Sm (eg, S1 ) and one end of one of the second lines P1 to Pm (eg, P1 ). It may be provided with a first via (56a) connecting the.

In addition, the fifth coil unit 230-3 includes one end of another one (eg, Sn) of the first lines S1 to Sm and another one (eg, Pm) of the second lines P1 to Pm. A second via 56b connecting one end of may be provided.

The first and second vias 56a and 56b of the fifth coil unit 230 - 3 may or may pass through the insulating layer 73 , but are not limited thereto. The first and second vias of the fifth coil unit 230 - 3 may electrically connect the first lines S1 to Sm and the second lines P1 to Pm.

A portion of each of the first to third patterns PA1 and PA2 may be open or exposed from at least one of the first and third insulating layers 71 and 75 , and the exposed portion may be exposed on the circuit board 250 . ) It may be electrically connected to any one of the corresponding terminals.

For example, portions of the first layers Layer11 and Layer21 of each of the first to third patterns PA1 and PA2 may be open or exposed from the third insulating layer 75, and the exposed portions may be exposed on the circuit board. It may be electrically connected to a corresponding one of the terminals of (250).

For example, a portion of a line of the first layer Layer11 of each of the first and second patterns PA1 and a portion of the first layer Layer21 of the third pattern PA2 are formed by the third insulating layer 75 It may be opened or exposed from, and the exposed portion may be electrically connected to a corresponding one of the terminals of the circuit board 250 .

The width A2 of each of the first lines S1 to Sm and the second lines P1 to Pm of the fifth coil unit 230-3 corresponds to the third coil unit 230-1 (or the fourth coil unit 230-1). Since the width A1 of each of the first lines R1 to Rn and the second lines Q1 to Qn of the unit 230-2 is smaller, the third to fifth coil units 230- 1 to 230-3), the number of turns (or number of turns) of the fifth coil unit 230-3 is the number of turns (or number of turns) of each of the third and fourth coil units 230-1 and 230-2. number of times) can be greater than

For example, the ratio of the number of turns ("first turn") of each of the third and fourth coil units 230-1 and 230-2 to the number of turns ("second turn") of the fifth coil unit 230-3. may be 1:1.1 to 1:2, but is not limited thereto.

When the value obtained by dividing the number of second turns by the number of first turns (second number of turns/first turn number) is less than 1.1, the difference between the electromagnetic force in the Y-axis direction and the electromagnetic force in the X-axis direction cannot be reduced, resulting in deterioration in reliability of OIS operation.

When the value obtained by dividing the number of second turns by the number of first turns (second number of turns/first turn number) is greater than 2, the resistance of the fifth coil unit 230-3 increases and power consumption increases or the fifth coil unit ( The magnitude of the driving signal of 230-3) may be increased.

For example, the ratio of the number of turns of each of the third and fourth coil units 230-1 and 230-2 to the number of turns of the fifth coil unit 230-3 may be 1:1.1 to 1.1.5. For example, the number of turns of each of the third and fourth coil units 230-1 and 230-2 may be 30, and the number of turns of the fifth coil unit 230-3 may be 34, but is not limited thereto. .

Also, since the number of turns of the fifth coil unit 230-3 is greater than the number of turns of each of the third and fourth coil units 230-1 and 230-2, the fifth coil unit 230-3 and the third magnet The first electromagnetic force generated by 130-3 is coupled with the second electromagnetic force generated by the third coil unit 230-1 and the first magnet 130-1, and the fourth coil unit 230-2. It may be greater than each of the third electromagnetic forces generated by the second magnet 130-2. Due to this, the embodiment can reduce the difference between the sum of the first electromagnetic force in the X-axis direction and the second and third electromagnetic forces in the Y-axis direction, and improve the reliability of the OIS operation.

The third coil unit 230-1 and the fourth coil unit 230-2 each have first and second straight parts, and a first curve connecting ends of the first straight parts and ends of the second straight parts. It may include parts, and second curved parts connecting the other ends of the first straight parts and the other ends of the second straight parts.

The fifth coil unit 230-3 includes third straight parts and fourth straight parts, third curved parts connecting ends of the third straight parts and ends of the fourth straight parts, and other ends of the third straight parts. and fourth curved parts connecting the other ends of the fourth straight parts.

The width of each of the first straight parts may be the same as the width of each of the second straight parts, and the width of each of the third straight parts may be the same as the width of each of the fourth straight parts. Also, a width of each of the third straight parts or the fourth straight parts may be smaller than that of each of the first straight parts or the second straight parts.

For example, the width of each of the first straight parts, the width of each of the second straight parts, the width of each of the first curved parts, and the width of each of the second curved parts may be the aforementioned A1, the width of each of the third straight parts, The width of each of the fourth straight portions, the width of each of the third curved portions, and the width of each of the fourth curved portions may be the above-described A2, and the description of A1 and A2 and the relationship between A1 and A2 are the same. can be applied

The distance between the first straight parts, the distance between the first curved parts, the distance between the second straight parts, the distance between the second curved parts, the distance between the third straight parts, the distance between the third curved parts, the fourth The distance between the straight parts and the distance between the fourth curved parts may be the above B1, and the description of B1 may be applied.

The width A1 of the pattern of the third and fourth coil units 230-1 and 230-2, which are OIS coils in the Y-axis direction, is greater than the width A1 of the pattern of the fifth coil unit 230-3, which is the OIS coil in the X direction. By making the width A2 small, the embodiment can reduce the difference between the electromagnetic force in the Y-axis direction and the electromagnetic force in the X-axis direction, which causes dynamic tilt of the lens driving device according to OIS operation. can suppress it.

The lens driving device 100 according to the above-described embodiment may be implemented in various fields, eg, a camera module or optical device, or may be used in a camera module or optical device.

For example, the lens driving device 100 according to the embodiment forms an image of an object in space using reflection, refraction, absorption, interference, diffraction, etc., which are characteristics of light, and aims to increase the visual acuity of the eyes, It may be included in an optic instrument for the purpose of recording and reproducing an image by a lens, optical measurement, propagation or transmission of an image, and the like. For example, an optical device according to an embodiment may include a smart phone and a portable terminal equipped with a camera.

19 is an exploded perspective view of a camera module 200 according to an embodiment.

Referring to FIG. 19 , the camera module 200 includes a lens or lens barrel 400, a lens driving device 100, an adhesive member 612, a filter 610, a first holder 600, and a second holder 800. ), an image sensor 810, a motion sensor 820, a controller 830, and a connector 840.

A lens or lens barrel 400 may be mounted on the bobbin 110 of the lens driving device 100 .

The first holder 600 may be disposed below the base 210 of the lens driving device 100 . The filter 610 is mounted on the first holder 600, and the first holder 600 may have a protrusion 500 on which the filter 610 is seated.

The adhesive member 612 may couple or attach the base 210 of the lens driving device 100 to the first holder 600 . The adhesive member 612 may serve to prevent foreign matter from entering the lens driving device 100 in addition to the above-described adhesive function.

For example, the adhesive member 612 may be an epoxy, a thermosetting adhesive, or an ultraviolet curable adhesive.

The filter 610 may serve to block light of a specific frequency band from light passing through the lens barrel 400 from being incident to the image sensor 810 . The filter 610 may be an infrared cut filter, but is not limited thereto. In this case, the filter 610 may be disposed parallel to the x-y plane.

An opening may be formed in a portion of the first holder 600 where the filter 610 is mounted so that light passing through the filter 610 may be incident to the image sensor 810 .

The second holder 800 is disposed below the first holder 600 , and the image sensor 810 may be mounted on the second holder 600 . The image sensor 810 is a part where light passing through the filter 610 is incident and an image including the light is formed.

The second holder 800 may be provided with various circuits, elements, and controllers to convert an image formed by the image sensor 810 into an electrical signal and transmit the electrical signal to an external device.

The second holder 800 may be implemented as a circuit board on which an image sensor may be mounted, a circuit pattern may be formed, and various elements may be coupled.

The image sensor 810 may receive an image included in light incident through the lens driving device 100 and convert the received image into an electrical signal.

The filter 610 and the image sensor 810 may be spaced apart from each other so as to face each other in the first direction.

The motion sensor 820 is mounted on the second holder 800 and can be electrically connected to the controller 830 through a circuit pattern provided on the second holder 800 .

The motion sensor 820 outputs rotational angular velocity information caused by the movement of the camera module 200 . The motion sensor 820 may be implemented as a 2-axis or 3-axis gyro sensor or an angular velocity sensor.

The controller 830 is mounted or disposed in the second holder 800 . The second holder 800 may be electrically connected to the lens driving device 100 . For example, the second holder 800 may be electrically connected to the circuit board 190 of the lens driving device 100 .

For example, a driving signal or power may be provided to the first coil 120 and a driving signal or power may be provided to the second coil 230 through the second holder 800 .

For example, a driving signal may be provided to the first position sensor 170 and the second position sensor 240 through the second holder 800, and the output signal of the first position sensor 170 and the second position sensor ( 240) may be transmitted to the second holder 800. For example, the output signal of the first position sensor 170 and the output signal of the second position sensor 240 may be received by the controller 830 .

The connector 840 is electrically connected to the second holder 800 and may include a port to be electrically connected to an external device.

20 shows a perspective view of a camera module 1000 according to another embodiment.

Referring to FIG. 20 , a camera module 1000 includes a first camera module 100-1 including a first lens driving device and a second camera module 100-2 including a second lens driving device. It may be a dual camera module.

Each of the first camera module 100-1 and the second camera module 100-2 may be either an auto focus (AF) camera module or an optical image stabilizer (OIS) camera module.

A camera module for AF refers to one capable of performing only an auto focus function, and a camera module for OIS refers to one capable of performing an auto focus function and an OIS (Optical Image Stabilizer) function.

For example, the first lens driving device may be the embodiment 100 shown in FIG. 1 . The second lens driving device may be the embodiment 100 shown in FIG. 1 or may be a lens driving device for AF or a lens driving device for OIS.

The camera module 1000 may further include a circuit board 1100 for mounting the first camera module 100-1 and the second camera module 100-2. In FIG. 20 , the first camera module 100 - 1 and the second camera module 100 - 2 are disposed side by side on one circuit board 1100 , but are not limited thereto. In another embodiment, the circuit board 1100 may include a first circuit board and a second circuit board separated from each other, and the first camera module 100-1 may be disposed on the first circuit board, and the second circuit board may be disposed on the second circuit board. The camera module may be disposed on the second circuit board.

The circuit of the first camera module 100-1 is placed so that the dummy member 135 of the first lens driving device 100 of the first camera module 100-1 is positioned adjacent to the second camera module 100-2. By disposing them on the substrate 1100, the first to third magnets 130-1 to 130-3 of the first camera module 100-1 and the second lens of the second camera module 100-2 are driven. It is possible to reduce the decrease in magnetic field between the magnets included in the device, thereby securing the reliability of AF driving or/and OIS driving of each of the first camera module 100-1 and the second camera module 100-2. can do.

21 is a perspective view of a portable terminal 200A according to an embodiment, and FIG. 22 is a configuration diagram of the portable terminal 200A shown in FIG. 21 .

21 and 22, a portable terminal (200A, hereinafter referred to as a “terminal”) includes a body 850, a wireless communication unit 710, an A/V input unit 720, a sensing unit 740, an input/output unit, It may include an output unit 750, a memory unit 760, an interface unit 770, a control unit 780, and a power supply unit 790.

The body 850 shown in FIG. 21 has a bar shape, but is not limited thereto, and is a slide type, folder type, or swing type in which two or more sub-bodies are coupled to be relatively movable. , and may have various structures such as a swivel type.

The body 850 may include a case (casing, housing, cover, etc.) constituting an external appearance. For example, the body 850 may be divided into a front case 851 and a rear case 852 . Various electronic components of the terminal may be embedded in the space formed between the front case 851 and the rear case 852 .

The wireless communication unit 710 may include one or more modules enabling wireless communication between the terminal 200A and a wireless communication system or between the terminal 200A and a network in which the terminal 200A is located. For example, the wireless communication unit 710 may include a broadcast reception module 711, a mobile communication module 712, a wireless Internet module 713, a short-distance communication module 714, and a location information module 715. there is.

An audio/video (A/V) input unit 720 is for inputting an audio signal or a video signal, and may include a camera 721 and a microphone 722.

The camera 721 may include the camera modules 200 and 1000 according to the embodiment shown in FIG. 19 or 20 .

The sensing unit 740 detects the current state of the terminal 200A, such as the open/closed state of the terminal 200A, the location of the terminal 200A, whether or not there is a user contact, the direction of the terminal 200A, and the acceleration/deceleration of the terminal 200A. By sensing, a sensing signal for controlling the operation of the terminal 200A may be generated. For example, when the terminal 200A is in the form of a slide phone, whether the slide phone is opened or closed may be sensed. In addition, it is responsible for sensing functions related to whether or not the power supply unit 790 supplies power and whether or not the interface unit 770 is connected to an external device.

The input/output unit 750 is for generating input or output related to sight, hearing, or touch. The input/output unit 750 may generate input data for controlling the operation of the terminal 200A, and may also display information processed by the terminal 200A.

The input/output unit 750 may include a keypad unit 730, a display module 751, a sound output module 752, and a touch screen panel 753. The keypad unit 730 may generate input data by keypad input.

The display module 751 may include a plurality of pixels whose colors change according to electrical signals. For example, the display module 751 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a 3D At least one of 3D displays may be included.

The audio output module 752 outputs audio data received from the wireless communication unit 710 in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or stored in the memory unit 760. Audio data can be output.

The touch screen panel 753 may convert a change in capacitance caused by a user's touch to a specific area of the touch screen into an electrical input signal.

The memory unit 760 may store programs for processing and control of the control unit 780, and may store input/output data (eg, phone book, messages, audio, still images, photos, videos, etc.) can be temporarily stored. For example, the memory unit 760 may store an image captured by the camera 721, for example, a photo or video.

The interface unit 770 serves as a passage through which an external device connected to the terminal 200A is connected. The interface unit 770 receives data from an external device or receives power and transmits it to each component inside the terminal 200A, or transmits data inside the terminal 200A to an external device. For example, the interface unit 770 may include a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port connecting a device having an identification module, an audio I/O (Input/ Output) port, video I/O (Input/Output) port, and earphone port.

The controller 780 may control overall operations of the terminal 200A. For example, the controller 780 may perform related control and processing for voice calls, data communications, video calls, and the like.

The controller 780 may include a multimedia module 781 for playing multimedia. The multimedia module 781 may be implemented within the control unit 180 or may be implemented separately from the control unit 780.

The controller 780 may perform a pattern recognition process capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 790 may receive external power or internal power under the control of the control unit 780 to supply power necessary for the operation of each component.

Features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified with respect to other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to these combinations and variations should be construed as being included in the scope of the present invention.

Claims (20)

housing;
a bobbin disposed within the housing;
A first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing opposite the first side, and a magnet disposed between the first side and the second side. a magnet including a third magnet disposed on a third side of the housing;
a weight balance member disposed on a fourth side of the housing opposite to the third side;
A first coil unit disposed on a first side of the bobbin facing the first side of the housing and a second coil unit disposed on a second side of the bobbin facing the second side of the housing. a first coil; and
A third coil unit facing the first magnet in the optical axis direction, a fourth coil unit facing the second magnet in the optical axis direction, and a fifth coil unit facing the third magnet in the optical axis direction. Including a second coil,
When viewed from above, the length of the fifth coil unit is greater than that of each of the third and fourth coil units. According to claim 1,
Each of the third to fifth coil units includes a line having a plurality of turns, and the number of turns of the fifth coil unit is greater than the number of turns of each of the third and fourth coil units. Device. According to claim 1,
Each of the third to fifth coil units includes a line having a plurality of turns,
A width of the line of the fifth coil unit is smaller than a width of the line of the third coil unit. According to claim 3,
A width of the line of the third coil unit is equal to a width of the line of the fourth coil unit. According to claim 1,
When viewed from above, the width of the fifth coil unit is equal to the width of the third coil unit. According to claim 1,
Each of the third to fifth coil units includes a first layer, a second layer disposed on the first layer, and lines having a plurality of winding numbers formed on each of the first layer and the second side. do
A width of the line of each of the first layer and the second layer of the fifth coil unit is smaller than a width of the line of each of the first layer and the second layer of the third coil unit. According to claim 6,
Each of the third to fifth coil units includes at least one via connecting the first layer and the second layer. According to claim 1,
The lens driving device wherein the first coil unit and the second coil unit are connected in series. According to claim 1,
A length of the third magnet is greater than each of the first and second magnets. According to claim 1,
a sensing magnet disposed on a third side of the bobbin facing the third side of the housing; and
A lens driving device including a first position sensor for sensing the sensing magnet. According to claim 10,
and a balancing member disposed on a fourth side of the bobbin facing the fourth side of the housing. According to claim 1,
an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing; and
and a support member coupled to the upper elastic member and supporting the housing. According to claim 12,
The support member is disposed at each of four corner portions of the housing. According to claim 1,
a base disposed below the housing; and
A circuit member disposed on the base;
The second coil is formed on the circuit member. According to claim 14,
A second position sensor disposed on the base and sensing displacement of the housing;
The second position sensor includes a first sensor overlapping one of the first and second magnets in the optical axis direction and a second sensor overlapping the third magnet in the optical axis direction. According to claim 1,
The lens driving device of claim 1 , wherein the weight balancing member does not overlap with the second coil in the optical axis direction. According to claim 1,
The lens driving device of claim 1 , wherein the housing moves in a direction perpendicular to the optical axis direction by an interaction between the second coil and the magnet. housing;
a bobbin disposed within the housing;
A first magnet disposed on a first side of the housing, a second magnet disposed on a second side of the housing opposite the first side, and a magnet disposed between the first side and the second side. a magnet including a third magnet disposed on a third side of the housing;
a weight balance member disposed on a fourth side of the housing opposite to the third side;
a first coil disposed on the bobbin and including a first coil unit facing the first magnet and a second coil unit facing the second magnet; and
A circuit member disposed under the housing and having a second coil formed thereon;
The second coil includes a third coil unit facing the first magnet, a fourth coil unit facing the second magnet, and a fifth coil unit facing the third magnet,
The number of turns of the fifth coil unit is greater than the number of turns of the third coil unit. According to claim 18,
Each of the third to fifth coil units includes a line, and a width of the line of the fifth coil unit is smaller than a width of the line of the third coil unit. housing;
a bobbin disposed within the housing;
a magnet disposed in the housing; and
A lens driving device including a first coil disposed on the bobbin.

Images