WO2016093669A1

WO2016093669A1 - Fingerprint sensor module assembly integrated with cover window for electronic device

Info

Publication number: WO2016093669A1
Application number: PCT/KR2015/013626
Authority: WO
Inventors: 김종욱; 김산; 최우영
Original assignee: 크루셜텍(주)
Priority date: 2014-12-11
Filing date: 2015-12-11
Publication date: 2016-06-16

Abstract

The present invention relates to a fingerprint sensor module assembly integrated with a cover window for an electronic device which has a simple appearance, can enhance the aesthetic sense of design, and has improved waterproofness. A fingerprint sensor module assembly integrated with a cover window for an electronic device, according to one embodiment of the present invention, comprises: a cover window; a fingerprint sensor module; and an adhesion part. Here, the cover window is provided to an electronic device, an image is displayed on the cover window by means of a display module, and a mounting part is formed on the lower side thereof facing the electronic device. The fingerprint module, positioned in the mounting part, comprises a fingerprint sensor having a sensing unit for sensing fingerprints; and a substrate which is electrically connected to the fingerprint sensor. Further, the adhesion part is provided between the mounting part and the fingerprint sensor module and fixes the fingerprint sensor module in the mounting part.

Description

Electronic Cover Window Integrated Fingerprint Sensor Module Assembly

The present invention relates to an electronic device cover window-integrated fingerprint sensor module assembly, and more particularly, to an electronic device cover window-integrated fingerprint sensor module assembly which is simple in appearance and can enhance aesthetics in appearance and also improves waterproofness.

Recently, as public attention has focused on portable electronic devices such as smartphones or tablet PCs, research and development in related technical fields are being actively conducted.

BACKGROUND OF THE INVENTION Portable electronic devices often incorporate a touch screen integrated with a display, which is a display device, as one of input devices for receiving a specific command from a user. In addition, the portable electronic device may include various function keys or soft keys as input devices other than the touch screen.

These function keys or softkeys can act as home keys, for example, to exit a running application and return to the home screen, or to return the user interface one layer back, or frequently. Can act as a menu key to call a menu to write. Such a function key or soft key may be implemented in a manner of sensing a capacitance of a conductor, a method of sensing electromagnetic waves of an electromagnetic pen, or a complex method in which both methods are implemented, and may be implemented as a physical button.

On the other hand, as the use of portable electronic devices has rapidly expanded to services requiring security, a trend toward mounting a biometric sensor having a function of measuring biometric information for high security has increased.

Biometric information includes fingerprints, blood vessels on the back of the hand, voices, irises, and the like, and fingerprint sensors are widely used as biometric sensors.

The fingerprint sensor is a sensor that detects a human finger fingerprint. The fingerprint sensor is configured to undergo user registration or authentication through a fingerprint sensor, thereby protecting data stored in the portable electronic device and preventing security accidents.

The fingerprint sensor may be manufactured in the form of a module including a peripheral component or a structure, and may be integrated with a physical function key so that the fingerprint sensor may be effectively mounted on various electronic devices.

In recent years, the use of the fingerprint sensor such as the navigation function that performs the operation of a pointer, such as the integration of the fingerprint sensor is becoming more widespread, this type of fingerprint sensor is called a Bimetric Track Pad (BTP). .

Types of fingerprint sensors include capacitive type, optical type, ultrasonic type, heat sensing type, and non-contact type, but the capacitive type fingerprint sensor with excellent sensitivity, robust against external environmental changes and excellent matching with portable electronic devices has recently been developed. It is used a lot.

1 is a diagram illustrating a conventional electronic device equipped with a fingerprint sensor module, Figure 2 is a cross-sectional view taken along the line A-A of FIG.

As shown in FIG. 1 and FIG. 2, a button hole 21 is formed through the cover window 20 of the conventional electronic device 10, and the fingerprint sensor module 30 is installed in the button hole 21.

The fingerprint sensor module 30 includes a fingerprint sensor 32 having a sensing unit 31 and a substrate 33 on which the fingerprint sensor 32 is mounted, and a color layer and a protective layer on the upper surface of the fingerprint sensor 32. A layer 34 including the back is provided. In general, the fingerprint sensor module 30 coupled to the button hole 21 is mounted such that the upper surface 35 of the layer 34 is similar to the upper surface 22 of the cover window 20.

Meanwhile, as electronic devices of various thicknesses are manufactured for each manufacturer, fingerprint sensor modules having various heights are required. To this end, a method of adjusting the height of the fingerprint sensor 32 or adjusting the thickness of the substrate 33 is used, but the cost is increased to increase the height of the fingerprint sensor 32 or the thickness of the substrate 33. There is a difficulty in managing the presence of a substrate of various thickness.

In addition, since the button hole 21 is formed to penetrate the cover window 20 so that the fingerprint sensor module 30 can be mounted, external moisture is prevented by a gap between the button hole 21 and the fingerprint sensor module 30. Or moisture in the air may penetrate. In addition, infiltration of external moisture or moisture in the air may cause a short circuit in the fingerprint sensor module 30, and may cause malfunction or damage of the fingerprint sensor 32. do. Conventionally, such external moisture or air in the air may further provide a sealing agent 40 to prevent penetration, which is a problem that leads to cost increase and process addition.

Such a problem may be common in a fingerprint sensor module formed through various packaging methods such as a chip on board (COB), a quad flat package (QFP), a ball grid array (BGA), and a wafer level package (WLP).

In order to solve the above problems, the technical problem to be achieved by the present invention is to provide an electronic device cover window-integrated fingerprint sensor module assembly that is simple in appearance and can enhance the aesthetics in design and improved waterproofness.

In order to achieve the above technical problem, an embodiment of the present invention is provided with an electronic device and an image displayed by the display module, the cover window is formed on the lower surface facing the inside of the electronic device; A fingerprint sensor having a sensing unit for sensing a fingerprint, a fingerprint sensor module including a substrate electrically connected to the fingerprint sensor, and located at the seating unit; And providing an electronic device cover window-integrated fingerprint sensor module assembly provided between the seating part and the fingerprint sensor module, the adhesive part fixing the fingerprint sensor module to the seating part.

In one embodiment of the present invention, the seating portion may be provided on the surface of the lower surface of the cover window.

In one embodiment of the present invention, the seating portion is formed in a groove shape so as to correspond to the shape of the fingerprint sensor, the fingerprint sensor may be fixed to the seating.

In one embodiment of the present invention, the seating portion may be formed by etching or cutting.

In one embodiment of the present invention, at least a portion of the sensing unit and the fingerprint sensor may be located in the seating portion.

In one embodiment of the present invention, at least a portion of the substrate may be further located in the seating portion.

In one embodiment of the present invention, the thickness of the cover window between the upper surface of the cover window and the upper surface of the sensing unit may be 200 ~ 300um.

In one embodiment of the present invention, the cover window may have a display area in which an image is displayed, and a bezel area in which a print layer is provided and the image is not displayed, and the seating part may be formed in the bezel area.

In an embodiment of the present invention, an intaglio or embossed pattern may be further formed in an area corresponding to the upper side of the fingerprint sensor among the top surfaces of the cover window exposed to the user.

In one embodiment of the present invention, an opening area having a predetermined width is formed along the edge of the seating portion on the lower surface of the cover window, and the lower side of the cover window emits light to the upper surface of the cover window through the opening area. A light emitting unit for providing light may be provided.

In one embodiment of the present invention, the light emitting unit may be provided with one or more on the main substrate to which the substrate or the fingerprint sensor module is electrically connected.

In one embodiment of the present invention, the cover window may have a display area in which an image is displayed and a bezel area in which a print layer is provided and no image is displayed, and the seating part may be formed in the display area.

In one embodiment of the present invention, the cover window may be made of a material selected from glass, sapphire, zirconium and a transparent resin.

In one embodiment of the present invention, the cover window may further include a non-display portion provided independently of the cover window, the seating portion may be formed in the non-display portion.

In one embodiment of the present invention, the non-display portion may be made of a resin or a metal material.

In one embodiment of the present invention, the cover window is a first cover window, the upper surface is exposed to the user, an adhesive layer provided on the lower surface of the first cover window, and the upper surface of the first cover window by the adhesive layer It includes a second cover window bonded to the lower surface, the seating portion may be formed through the second cover window.

In one embodiment of the present invention, the thickness of the second cover window may correspond to the height of the fingerprint sensor.

In one embodiment of the present invention, the surface of the seating portion is provided with a color layer, the adhesive portion may be filled on the color layer.

According to one embodiment of the invention, since the fingerprint sensor is coupled to the seating portion formed on the bottom of the cover window, when viewed from the top of the cover window, a continuous surface can be formed, the appearance is simple and design aesthetics It can increase.

In addition, according to an embodiment of the present invention, since the cover window has a continuous surface without a buttonhole like the conventional cover window, the external moisture or moisture in the air can be structurally blocked from penetration, thereby Water resistance can also be improved.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a diagram illustrating a conventional electronic device equipped with a fingerprint sensor module.

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is an exemplary view showing an electronic device having an electronic device cover window integrated fingerprint sensor module assembly according to a first embodiment of the present invention.

Figure 4 is a plan view showing an electronic device cover window integrated fingerprint sensor module assembly according to a first embodiment of the present invention.

FIG. 5 is a bottom view of the electronic device cover window integrated fingerprint sensor module assembly according to the first embodiment of the present invention.

6 is an exploded perspective view of the electronic device cover window-integrated fingerprint sensor module assembly according to the first embodiment of the present invention.

7 is a cross-sectional view taken along the line B-B of FIG.

8 is a cross-sectional view illustrating a coupling example of a fingerprint sensor module and a seating unit in the electronic device cover window integrated fingerprint sensor module assembly according to the first embodiment of the present invention.

9 and 10 are cross-sectional view illustrating an installation example of an electronic device cover window integrated fingerprint sensor module assembly according to a first embodiment of the present invention.

11 is an enlarged plan view illustrating a part of an electronic device having an electronic device cover window-integrated fingerprint sensor module assembly according to a first embodiment of the present invention.

FIG. 12 is a cross-sectional view illustrating an installation example of a light emitting unit along the line C-C in FIG.

13 to 15 are exemplary views showing the formation of the surface of the cover window corresponding to the upper side of the fingerprint sensor in the electronic device cover window integrated fingerprint sensor module assembly according to the first embodiment of the present invention.

16 is a cross-sectional view illustrating an installation example of an electronic device cover window integrated fingerprint sensor module assembly and an electronic device according to a second embodiment of the present invention.

17 is a plan view showing a cover window of the electronic device cover window integrated fingerprint sensor module assembly according to a third embodiment of the present invention.

18 is a plan view showing a cover window of the electronic device cover window integrated fingerprint sensor module assembly according to a fourth embodiment of the present invention.

19 is a perspective view illustrating an electronic device cover window integrated fingerprint sensor module assembly according to a fifth embodiment of the present invention.

20 is a perspective view illustrating a fingerprint sensor module of the electronic device cover window-integrated fingerprint sensor module assembly according to the fifth embodiment of the present invention.

21 is a cross-sectional view taken along the line G-G of FIG.

22 is an exploded perspective view showing the electronic device cover window-integrated fingerprint sensor module assembly according to a fifth embodiment of the present invention.

100,700: electronic device cover window integrated fingerprint sensor module assembly

110, 310, 510, 610, 750: cover window 111: display area

112: bezel area 113: printed layer

115,551,651,751: Mounting part 119,735: open area

120,121,122: pattern 140,710: fingerprint sensor module

141,711: fingerprint sensor 145,712: substrate

170,755: bonding portion 180: color layer

200: electronic device 210: display module

220: main board 230: connector

250: light emitting unit 320: first cover window

330: adhesive layer 340: second cover window

550: non-display portion 720: base

730: cover

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, it includes not only "directly connected" but also "indirectly connected" with another member in between. . In addition, when a part is said to "include" a certain component, this means that it may further include other components, without excluding the other components unless otherwise stated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exemplary view showing an electronic device having an electronic device cover window integrated fingerprint sensor module assembly according to a first embodiment of the present invention, Figure 4 is an electronic device cover window integrated fingerprint sensor according to a first embodiment of the present invention 5 is a plan view showing a module assembly, FIG. 5 is a bottom view showing an integrated fingerprint sensor module assembly according to the first embodiment of the present invention, and FIG. 6 is a cover view of the electronic device according to the first embodiment of the present invention. An exploded perspective view of the integrated fingerprint sensor module assembly, Figure 7 is a cross-sectional view taken along the line BB of FIG.

3 to 7, the electronic device cover window integrated fingerprint sensor module assembly 100 according to the first embodiment of the present invention includes a cover window 110, a fingerprint sensor module 140, and an adhesive part 170. It may include.

Here, the cover window 110 is provided on the front surface of the electronic device 200 so that the image transmitted by the display module 210 (see FIG. 9) is transmitted and displayed.

The cover window 110 may be made of a material selected from glass, sapphire, zirconium, and a transparent resin. When the cover window 110 is made of a glass material, various glass substrates such as a soda lime glass substrate, an alkali free glass substrate, or a tempered glass substrate may be applied. As the transparent resin, acryl or the like may be applied.

The cover window 110 may have a display area 111 in which an image is displayed and a bezel area 112 in which the image is not displayed.

The bezel area 112 may be formed by providing the print layer 113. The print layer 113 may be provided on the bottom surface 114 of the cover window 110 facing the inside of the electronic device 200 when the cover window 110 is mounted on the electronic device 200. It may be provided in the edge area of the 110.

The fingerprint sensor module 140 may include a fingerprint sensor 141 and a substrate 145.

The fingerprint sensor 141 according to the present invention may be applied in various kinds. For example, the fingerprint sensor 141 may be capacitive, optical, ultrasonic, thermal, non-contact, or the like. Hereinafter, for convenience of description, the fingerprint sensor 141 will be described in a capacitive manner.

The fingerprint sensor 141 may have a sensing unit 142 that detects a fingerprint. The sensing unit 142 may be formed in various forms. For example, the sensing unit 142 may be arranged in an array form and include sensing pixels having a sensing area. In addition, the sensing unit 142 may include a plurality of line type driving electrodes and receiving electrodes. In addition, the sensing unit 142 may be formed of an AREA type having a plurality of image receiving units.

In addition, the sensing unit 142 may find a difference in capacitance due to a height difference according to the shape of the peak and the valley of the fingerprint of the user's finger, and may generate a fingerprint image by scanning the image of the fingerprint. The sensing unit 142 may generate a fingerprint image by scanning an image of the fingerprint not only when the user's finger is in contact but also when the user's finger is moved.

In addition, the sensing unit 142 may have a fingerprint detection function and a pointer manipulation function for detecting a fingerprint. Through this, the fingerprint sensor 141 may be implemented as a biometric trackpad (BTP).

In addition, the sensing unit 142 may have a location tracking function of a user's finger. That is, the sensing unit 142 may sense input information or static electricity according to whether a user's finger approaches or a movement thereof, and may have a pointer manipulation function of moving a pointer such as a cursor based on the movement.

In addition, the fingerprint sensor 141 may be electrically connected to the substrate 145. Electrical connection between the fingerprint sensor 141 and the substrate 145 may be made in various ways. For example, the fingerprint sensor 141 may be connected by a surface mount technology (SMT).

In addition, the fingerprint sensor 141 may be variously packaged such as a chip on board (COB), a quad flat package (QFP), a ball grid array (BGA), a wafer level package (WLP), a through silicon via (TSV), or the like. It can be formed through the method.

The substrate 145 may have a mounting portion 146 on which the fingerprint sensor 141 is mounted and an extension portion 147 extending from the mounting portion 146. The substrate 145 may be a flexible printed circuit board (FPCB), and the extension 147 may be connected to a connector 230 (see FIG. 9) provided on the main board 220 (see FIG. 9) of the electronic device 200. Can be.

The cover window 110 may have a seating portion 115 formed on the bottom surface 114 facing the inside of the electronic device 200. In the present embodiment, the seating part 115 may be formed in the bezel area 112.

In addition, the mounting portion 115 may be formed on the surface of the lower surface 114 of the cover window 110, or may be formed in the form of a groove in the cover window (110).

When the seating portion 115 is formed in the shape of a groove, the seating portion 115 may be formed to correspond to the shape of the fingerprint sensor 141. Hereinafter, for convenience of explanation, it will be described as a case where the mounting portion 115 is formed in the form of a groove.

When the seating portion 115 is formed in a groove shape, the seating portion 115 may be formed by a method of etching or cutting, and such a method may be appropriately selected according to the material of the cover window 110. For example, when the cover window 110 is made of a glass material, the seating portion 115 may be formed by an etching or computer numerical control (CNC) machining method. As the etching method, dry etching or wet etching may be used, or a method in which dry etching and wet etching are alternated may be used. In addition, when the cover window 110 is made of a synthetic resin such as plastic, the seating portion 115 may be molded together when the cover window is molded.

The fingerprint sensor module 140 may be coupled to the seating unit 115, and an adhesive unit 170 may be provided at the seating unit 115 so that the fingerprint sensor module 140 may be firmly coupled to the seating unit 115. .

Here, the color layer 180 may be provided on the surface of the seating portion 115. The color layer 180 may express colors with the upper surface 116 of the cover window 110 together with the print layer 113 provided in the bezel area 112 of the cover window 110.

The color layer 180 may be provided only on the bottom surface 117 of the mounting portion 115, or may be further provided on the side surface 118 of the mounting portion 115. In addition, the color layer 180 may have the same color as or different from that of the printed layer 113.

The adhesive part 170 may be provided on the color layer 180. That is, the color layer 180 may be first provided on the seating part 115, and the adhesive part 170 may be provided on the color layer 180.

The adhesive unit 170 may be formed in various forms such as a film form, a liquid form, and a powder form. The adhesive part 170 may be appropriately selected according to the type of the fingerprint sensor. For example, when the fingerprint sensor 141 is capacitive, the adhesive part 170 may have a high dielectric constant and high adhesive force and a low viscosity. When the fingerprint sensor 141 is an ultrasonic method, it is preferable that the fingerprint sensor 141 is non-conductive so as not to affect sound waves.

The adhesive part 170 is provided on the bottom surface 117 and the side surface 118 of the seating portion 115 as a whole, or first to the bottom surface 117 of the seating portion 115 to fix the position of the fingerprint sensor 141. The side surface 118 of the seating portion 115, that is, the outer surface and the seating portion 115 of the seating portion 115, is provided to mold and fix the fingerprint sensor 141 seated on the seating portion 115. May be used, such as being further filled in the space between the sides 118 of.

At least a portion of the sensing unit 142 and the fingerprint sensor 141 may be located in the seating unit 115.

The thickness D1 of the cover window 110 between the upper surface 116 of the cover window 110 and the upper surface of the sensing unit 142 may be 200 to 300 um. The thickness D1 is derived in consideration of the strength of the cover window 110 and the sensing sensitivity of the fingerprint sensor 141. When the thickness D1 is less than 200 μm, the cover window 110 may not provide sufficient strength. If it exceeds 300um, the sensing sensitivity of the sensing unit 142 may be reduced.

Referring to FIG. 8A, the seating part 115 may be formed to correspond to the shape of the fingerprint sensor 141, and the fingerprint sensor 141 may be seated and fixed to the seating part 115. That is, both the sensing unit 142 and the fingerprint sensor 141 may be mounted on the mounting unit 115. The mounting part 146 and the extension part 147 of the substrate 145 may be provided outside the seating part 115.

Meanwhile, referring to FIG. 8B, at least a portion of the substrate 145 may be further positioned in the seating portion 115a. Here, a part of the substrate 145 positioned in the seating portion 115a may be a mounting portion 146. That is, the fingerprint sensor 141 including the sensing unit 142 and the mounting unit 146 of the substrate 145 may be mounted together in the mounting unit 115a.

8C, the mounting portion 146b of the substrate 145b may have a larger area than the fingerprint sensor 141. Therefore, when the fingerprint sensor 141 is all seated on the seating portion 115, a part 149 of the mounting portion 146b may extend to the outside of the fingerprint sensor 141. At this time, the length L of the mounting portion 146b extending to the outside of the fingerprint sensor 141 is not particularly limited.

In addition, referring to FIG. 8 (d), the sensing unit 142 and the upper portion of the fingerprint sensor 141 may be positioned in the seating part 115c. That is, according to the present embodiment, at least a portion of the sensing unit 142 and the fingerprint sensor 141 may be located in the seating unit 115c.

As such, according to the present invention, since the fingerprint sensor 141 is coupled to the seating portion 115 formed on the lower surface 114 of the cover window 110, the upper surface 116 of the cover window 110 is continuously formed. It is simple in appearance and can enhance aesthetics in design. In addition, according to the present invention, since the cover window 110 has a continuous surface without a buttonhole like a conventional cover window, the moisture or air in the outside may be structurally blocked from penetration, thereby waterproofing Can also be improved.

First, as shown in FIG. 9, the fingerprint sensor 141 may be seated and fixed to the seating portion 115 of the cover window 110. The mounting portion 146 of the substrate 145 may be provided to be in close contact with the bottom surface 114 of the cover window 110. In this case, since the thickness of the substrate 145 may be sufficiently thin, the display module 210 may be provided in close proximity or in close contact with the lower side of the electronic device cover window integrated fingerprint sensor module assembly 100. The cover window 110 and the display module 210 may be adhered by an adhesive (not shown).

Here, the display module 210 may include a touch screen panel (not shown), and the main substrate 220 of the electronic device may be provided below the display module 210. In addition, the connector 230 may be provided on the main board 220.

In the electronic device cover window integrated fingerprint sensor module assembly according to an embodiment of the present invention, the extension 147 of the substrate 145 is connected to the display module 210 while the fingerprint sensor 141 is coupled to the seating portion 115. It may extend outward and be connected to the connector 230 of the main board 220. The connection method may be applied to a structure in which the touch screen panel is provided inside the display module 210 or provided on the upper side of the display module 210.

As shown in FIG. 10, a portion of the fingerprint sensor 141 may protrude to the outside of the seating portion 115d, and in this case, the display module 210d may not be positioned below the fingerprint sensor 141. It may be provided to avoid. For example, the length of the display module 210d may be shorter than the length of the display module 210 described with reference to FIG. 9, whereby an overlap occurs between the display module 210d and the fingerprint sensor 141. You can't.

FIG. 11 is an enlarged plan view showing a part of an electronic device having an electronic device cover window-integrated fingerprint sensor module assembly according to a first embodiment of the present invention, and FIG. A cross-sectional view showing the.

As shown in FIGS. 11 and 12, an open area 119 having a predetermined width may be formed on the bottom surface 114 of the cover window 110 along the edge of the seating portion 115. Here, the open area 119 may be a surface on which the print layer 113 provided on the bottom surface 114 of the cover window 110 is not provided along the edge of the seating portion 115.

In addition, the light emission part 250 may be provided below the cover window 110.

Referring to FIG. 12A, at least one light emitting unit 250 may be provided on the main substrate 220 of the electronic device 200, and the light emitting unit 250 may be disposed around the fingerprint sensor 141. It may be mounted on the main substrate 220 to be positioned. The light emitting unit 250 may use a light emitting diode (LED) as a light source, and may include a plurality of light sources, for example, a white LED, a red LED, and a green LED, for irradiating light of various colors. .

The light emitting unit 250 may be a light source having an upper surface directivity for irradiating light in an upward direction or a light source having a side orientation for irradiating light in a lateral direction.

Light emitted from the light emitter 250 may be emitted to the upper surface 116 of the cover window 110 through the open area 119. The light emitted through the open area 119 to the upper surface 116 of the cover window 110 may express the shape of the open area 119, which is an indicator indicating the position of the fingerprint sensor 141. ) Function.

That is, in the present invention, since the upper side of the fingerprint sensor 141 is covered by the cover window 110, it may be difficult for the user to recognize the position of the fingerprint sensor 141. The light emitted through the open area 119 may indicate the position of the fingerprint sensor 141, and in particular, may effectively inform the position of the fingerprint sensor 141 at night.

Although the open area 119 is shown as a track shape in FIG. 11, this is for illustrative purposes, and the open area 119 is not limited to the case formed along the edge of the seating part 115, and various shapes are provided. It is possible to form.

In addition, the light emitter 250 may emit light of various colors by combining light sources, and may emit light of different colors according to a function so that a user may recognize a corresponding function, state, etc. by the color of light.

In addition, the open area 119 may be used in combination with various patterns to be described later with reference to FIGS. 13 to 15.

Meanwhile, referring to FIG. 12B, at least one light emitting unit 250 may be provided on the substrate 145e. The light emitting unit 250 may be provided in the mounting unit 146e of the substrate 145e. For this purpose, the mounting unit 146e may extend to the outside of the fingerprint sensor 141.

In addition, one or more of the substrate 145e and the main substrate 220 may be further provided with a vibrator (not shown), and the vibrator generates a specific vibration in conjunction with the light emitting unit 250 to allow a user to It can make you aware of the function, status, etc.

As shown in FIGS. 13 to 15, an intaglio or embossed pattern may be further formed in an area corresponding to the upper side of the fingerprint sensor 141 of the upper surface 116 of the cover window 110 exposed to the user.

First, FIG. 13A shows a plan view of a cover window, and FIG. 13B is a cross-sectional view taken along the line D-D. Referring to FIG. 13, an intaglio pattern 120 may be formed in an area corresponding to the upper side of the fingerprint sensor 141 of the upper surface 116 of the cover window 110. The intaglio pattern 120 may have a geometric shape or the like.

14A is a plan view of the cover window, and FIG. 14B is a cross-sectional view taken along the line E-E. Referring to FIG. 14, the intaglio pattern 121 may be formed in a groove shape.

15A is a plan view of the cover window, and FIG. 15B is a cross-sectional view taken along the F-F line. Referring to FIG. 15, an embossed pattern 122 may be formed in an area corresponding to an upper side of the fingerprint sensor 141 of the upper surface 116 of the cover window 110. Here, the embossed pattern 122 may be formed to avoid the fingerprint sensing area. 15 illustrates a ring shape protruding along the edge of the fingerprint sensor 141 by the embossed pattern 122, but the exemplary embodiment is not limited thereto.

On the other hand, the embossed pattern 122 may be made to protrude when a particular state, for example, the user's finger is touched in a state that does not normally protrude. To this end, the embossed pattern 122 may be implemented by a component provided separately on the upper surface of the cover window 110, the component is composed of a polymer material that can be modified in shape to form the embossed pattern 122 It may include.

16 is a cross-sectional view illustrating an installation example of an electronic device cover window integrated fingerprint sensor module assembly and an electronic device according to a second embodiment of the present invention. In this embodiment, the configuration of the cover window may be different, and the other configuration is the same as the first embodiment described above, so description thereof will be omitted.

As shown in FIG. 16, the cover window 310 may include a first cover window 320, an adhesive layer 330, and a second cover window 340.

The top surface 321 of the first cover window 320 may be a surface exposed to the user, and the adhesive layer 330 may be provided on the bottom surface of the first cover window 320.

The adhesive layer 330 may be applied or formed in the form of a film. For example, an optically clear resin (OCR) or an optically clear adhesive (OCA) may be used.

The upper surface of the second cover window 340 may be attached to the adhesive layer 330 to be bonded to the lower surface of the first cover window 320, and the second cover window 340 and the first cover window 320 may be formed of the same material. It may be made of.

The seating part 341 may be formed in the second cover window 340. In this case, the seating part 341 may be formed through the second cover window 340.

In addition, the color layer 350 may be provided at a position corresponding to the upper portion of the fingerprint sensor 141 of the lower surface of the first cover window 320, and may also be provided on the side of the seating portion 341 of the second cover window 340. It can be arranged further.

In addition, the adhesive part 370 may be further provided between the side surface of the seating portion 341 of the second cover window 340 and the side surface of the fingerprint sensor 141.

The thickness of the second cover window 340 may correspond to the thickness of the fingerprint sensor 141. In this case, the seating portion 341 may be formed to penetrate the second cover window 340. There is an advantage that the process for matching the depth of 341 can be omitted.

The extension part 347 of the substrate 345 on which the fingerprint sensor 141 coupled to the seating part 341 may be extended may be extended to the outside of the display module 210 to be connected to the connector 230 of the main board 220. The connection method may be applied to a structure in which a touch screen panel (not shown) is provided inside the display module 210 or provided on the upper side of the display module 210.

As shown in FIG. 17, the cover window 510 according to the present exemplary embodiment may further include a non-display unit 550 provided independently of the cover window 510. In addition, the mounting portion 551 may be formed in the non-display portion 550.

In the present embodiment, the non-display portion 550 may be made of a synthetic resin or metal material such as plastic.

The seating portion 551 may be formed through processing after the non-display portion 550 is formed, or may be formed together when the non-display portion 550 is formed.

In the present embodiment, since the non-display unit 550 may be opaque due to the characteristics of the material forming the non-display unit 550, the printing layer 113 (refer to FIG. 7) used in the above-described first embodiment is omitted. Can be.

As shown in FIG. 18, the bezel area 611 of the cover window 610 according to the present embodiment is compared with the bezel area 112 (see FIG. 4) of the first embodiment described above. The area of the bezel area 611 below the bottom of the panel) may be small. That is, based on the cover window of the same size, the display area 612 of the cover window 610 according to the present embodiment may be formed wider than the display area 111 (refer to FIG. 4) of the first embodiment. have.

The mounting portion 651 may be formed in the display area 612.

In the present embodiment, since the seating portion 651 is formed in the display area 612, a fingerprint sensor (not shown) may be provided in the display area 612, and thus, even in both areas 613 of the fingerprint sensor. As the image may be displayed, more various screens may be produced.

9, the image of the display module 210 is displayed as the lower portion of the cover window 110 (ie, the display area 612) except for the portion where the fingerprint sensor 141 is provided. I can understand that.

19 is a perspective view illustrating an electronic device cover window integrated fingerprint sensor module assembly according to a fifth embodiment of the present invention, and FIG. 20 is a fingerprint sensor of an electronic device cover window integrated fingerprint sensor module assembly according to a fifth embodiment of the present invention. 21 is a perspective view showing a module, Figure 21 is a cross-sectional view taken along the line GG of Figure 19, Figure 22 is an exploded perspective view showing an electronic device cover window integrated fingerprint sensor module assembly according to a fifth embodiment of the present invention. In the present embodiment, the configuration of the fingerprint sensor module may be different, and other configurations are the same as the first embodiment described above, and thus description thereof will be omitted.

19 to 22, the fingerprint sensor module 710 of the cover window integrated fingerprint sensor module assembly 700 according to the present embodiment includes a fingerprint sensor 711, a substrate 712, a base 720, and a cover. 730 may include.

Here, the fingerprint sensor 711 may be applied to all the contents related to the fingerprint sensor of the first embodiment.

The fingerprint sensor 711 may be mounted on the substrate 712, and in this embodiment, the substrate 712 may be a rigid PCB.

The base 720 may include a groove 721, a reflector 724, and a through part 725.

The groove 721 may be recessed in the upper surface 722 of the base 720. In addition, a support 723 may be formed at the center of the groove 721, and the substrate 712 on which the fingerprint sensor 711 is mounted may be supported by the support 723. In order to stably support the substrate 712, the support parts 723 may be provided in pairs.

The light emitting part 714 may be provided on the bottom surface 713 of the substrate 712. The light emitting unit 714 may be applied to all of the contents related to the light emitting unit of the first embodiment.

In addition, a reflection part 724 may be provided on an inner surface of the groove part 721. The reflector 724 may be provided by deposition, printing, spraying and plating. For example, the reflector 724 may be formed by coating a solution having a reflective function or by coating a reflective film. Therefore, the light emitted from the light emitter 714 provided on the bottom surface 713 of the substrate 712 may be reflected by the reflector 724. In addition, the reflector 724 may allow the light to be totally reflected.

In addition, a through part 725 may be formed in the center of the base 720, and a connector part 715 may be mounted in the center of the lower surface 713 of the substrate 712. The connector 715 may be exposed to the outside of the fingerprint sensor module 710 through the through part 725, and may be electrically connected to a main substrate (not shown) provided in the electronic device.

The cover 730 may cover the top surface of the base 720 and fix the fingerprint sensor 711.

The opening 731 may be penetrated through the cover 730. The fingerprint sensor 711 may be coupled to the opening 731, and the sensing unit (not shown) may be exposed through the opening 731.

In addition, a fixing portion 733 may protrude from the lower surface 732 of the cover 730, and the substrate 712 may be positioned and fixed inside the fixing portion 733.

The cover 730 may be formed of a light transmissive material, and thus, light emitted from the light emitter 714 may be transmitted through the cover 730.

Meanwhile, a light blocking part 734 may be provided on an upper surface of the cover 730, and the light blocking part 734 may block light. The light blocking portion 734 may not be provided in some regions of the top surface of the cover 730. The partial region may be a band-shaped open region 735 spaced apart from the fingerprint sensor 711 by a predetermined interval and having a predetermined width along the edge of the fingerprint sensor 711.

The light shield 734 may be provided by deposition, printing, spraying, plating, or the like. For example, the light blocking unit 734 may be formed by coating a solution having a function of blocking light, or may be formed by coating a film having a function of blocking light.

Therefore, the light moved through the cover 730 may be emitted through the open area 735 provided on the top surface of the cover 730. Open area 735 may function as an indicator as described above.

The open area 735 may be further provided with a thin coating layer (not shown), and the coating layer may have a color.

In addition, the coating layer may be formed so thin that the light transmitted through the cover 730 can be emitted. The color layer may express a color even when the light emitter 714 does not emit light, thereby realizing the function of an indicator even when the light emitter 714 does not emit light.

An adhesive 740 may be provided between the upper surface 722 of the base 720 and the lower surface 732 of the cover 730 to adhere the base 720 and the cover 730. The type and shape of the adhesive 740 are not particularly limited, and for example, a double-sided adhesive tape may be used.

In addition, the fingerprint sensor module 710 may be coupled to the seating portion 751 of the cover window 750. In the present embodiment, the case in which the seating portion 751 is formed in the shape of a groove will be described as an example. Can be.

In order to couple the fingerprint sensor module 710 and the seating portion 751, an adhesive part 755 may be provided between the fingerprint sensor module 710 and the seating portion 751.

The adhesive part 755 may be provided in the seating part 751 as a whole, and may have a light transmissive property so that light emitted from the open area 735 of the cover 730 may flow into the cover window 750.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.

Claims

A cover window provided on the electronic device and displaying an image by the display module, and having a seating portion formed on a lower surface of the electronic device toward the inner side;

A fingerprint sensor having a sensing unit for sensing a fingerprint, a fingerprint sensor module including a substrate electrically connected to the fingerprint sensor, and located at the seating unit; And

An electronic device cover window integrated fingerprint sensor module assembly provided between the seating part and the fingerprint sensor module, the adhesive part fixing the fingerprint sensor module to the seating part.
The method of claim 1,

The seating portion is provided on the surface of the lower surface of the cover window electronics cover window integrated fingerprint sensor module assembly.
The method of claim 1,

The seating portion is formed in a groove shape so as to correspond to the shape of the fingerprint sensor, the fingerprint cover module integrated electronic device cover window that the fingerprint sensor is seated and fixed.
The method of claim 3,

Wherein the seating portion is formed by etching or cutting the electronic cover window integrated fingerprint sensor module assembly.
The method of claim 3,

An electronic device cover window-integrated fingerprint sensor module assembly, wherein at least a portion of the sensing unit and the fingerprint sensor are located in the seating unit.
The method of claim 5,

At least a portion of the substrate is further located in the seating portion cover window integrated fingerprint sensor module assembly.
The method of claim 3,

The cover window between the upper surface of the cover window and the upper surface of the sensing unit has a thickness of 200 ~ 300um electronic device cover window integrated fingerprint sensor module assembly.
The method of claim 1,

The cover window has a display area in which an image is displayed and a bezel area in which a print layer is provided and the image is not displayed, and the seating portion is formed in the bezel area.
The method of claim 1,

An electronic device cover window integrated fingerprint sensor module assembly in which an intaglio or embossed pattern is further formed in an area corresponding to the upper side of the fingerprint sensor among the upper surfaces of the cover window exposed to the user.
The method of claim 1,

An open area having a predetermined width is formed on a lower surface of the cover window along an edge of the seating part, and a light emitting part is provided below the cover window to provide light emitted to an upper surface of the cover window through the open area. Electronic device cover window integrated fingerprint sensor module assembly.
The method of claim 10,

Wherein the light emitting unit is the electronic device cover window integrated fingerprint sensor module assembly is provided with one or more on the substrate or the main substrate to which the fingerprint sensor module is electrically connected.
The method of claim 1,

The cover window has a display area in which an image is displayed, and a bezel area in which a print layer is provided and the image is not displayed, and the seating portion is formed in the display area.
The method of claim 1,

The cover window is an electronic device cover window integrated fingerprint sensor module assembly is made of a material selected from glass, sapphire, zirconium and transparent resin.
The method of claim 1,

The cover window further comprises a non-display portion provided independently of the cover window, wherein the seating portion is formed on the non-display portion electronic cover window integrated fingerprint sensor module assembly.
The method of claim 14,

Wherein the non-display portion is made of a resin or metal material cover window integrated fingerprint sensor module assembly.
The method of claim 1,

The cover window

A first cover window having an upper surface exposed to the user;

An adhesive layer provided on a lower surface of the first cover window;

An upper surface of the second cover window joined to the lower surface of the first cover window by the adhesive layer;

The seating portion is formed through the second cover window electronics cover window integrated fingerprint sensor module assembly.
The method of claim 16,

The thickness of the second cover window is an electronic device cover window integrated fingerprint sensor module assembly that corresponds to the height of the fingerprint sensor.
The method of claim 1,

The surface of the seating portion is provided with a color layer, wherein the adhesive portion is filled with the electronic device cover window integrated fingerprint sensor module assembly.