KR101573432B1 - Lens assembly, light emitting device package, light emitting device package module, backlight unit, lighting device and display apparatus - Google Patents

Abstract

The present invention relates to a lens assembly, a light emitting device package, a light emitting device package module, a backlight unit, a lighting device, and a display device, A lens member assembled to the lens support; And an assembling member provided between the lens support and the lens member so that the lens support and the lens member are detachably assembled to each other, wherein the assembling member is fixed by an operation of inserting a protrusion into the groove and rotating the lens by twisting And may be a twist cap type assembling member.

Description

Technical Field The present invention relates to a lens assembly, a light emitting device package, a light emitting device package module, a backlight unit, a light emitting device package,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens assembly, a light emitting device package, a light emitting device package module, a backlight unit, a lighting device, and a display device. More particularly, Module, a backlight unit, a lighting device, and a display device.

BACKGROUND ART Light emitting diodes (hereinafter referred to as LEDs) are semiconductor devices that can emit light of various colors by forming a light emitting source through the formation of PN diodes of compound semiconductors. Such a light emitting device has a long lifetime, can be reduced in size and weight, and can be driven at a low voltage. In addition, these LEDs are resistant to shock and vibration, do not require preheating time and complicated driving, can be packaged after being mounted on a substrate or lead frame in various forms, so that they can be modularized for various purposes and used as a backlight unit A lighting device, and the like.

The LED is mounted on the surface of the circuit board and mounted on various electronic devices. At this time, a lens member may be installed on the LED so as to diffuse the light emitted from the LED.

Conventionally, however, the lens member has been manually applied by a worker to an adhesive on the lower surface of the lens member, and the lens member is fixed to a circuit board or a housing provided with a circuit board through a fixing screw. As mentioned above, since the operator attaches the lens member by hand, there is a problem that it takes much time and cost to work the lens member member.

In order to solve such a conventional problem, a lens member unit for an LED of Korean Patent Laid-Open Publication No. 2012-0062410 (filed on December 12, 2010) is surface-mounted on a circuit board on which an LED is mounted by solder, Thereby saving time and cost of manufacturing the lens member.

However, such a conventional optical member also has a problem in that it needs to be repositioned or fixedly bonded, and the substrate or the lens member is not good in appearance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a twist cap type assembling member on various lens supports such as a substrate, a printed circuit board, a lead frame, a housing, The lens can be easily and precisely aligned, and it can be structurally robust to improve the durability and reliability of the product, has excellent aesthetic appearance, can control the height of the lens in multiple stages, A light emitting device package, a light emitting device package module, a backlight unit, a lighting device, and a display device, which are convenient, have good ventilation and good heat dissipation, can be applied to various products to produce differentiated products and produce high quality products . However, these problems are exemplary and do not limit the scope of the present invention.

According to an aspect of the present invention, there is provided a lens assembly including: a lens support; A lens member assembled to the lens support; And an assembling member provided between the lens support and the lens member so that the lens support and the lens member are detachably assembled to each other, wherein the assembling member is fixed by an operation of inserting a protrusion into the groove and rotating the lens by twisting And may be a twist cap type assembling member.

According to an aspect of the present invention, the protruding portion of the assembling member includes: a head portion having a relatively large width at a tip; And a neck portion having a relatively small width in the middle, wherein the groove portion of the assembling member has an inlet groove portion having an inlet that is larger than the width of the head portion so that the head portion of the protrusion can pass through; And a movement space of the head is formed in the inside so that the head of the protrusion passing through the inlet groove part can be twisted along a twist path and is smaller than the width of the head of the protrusion outside, And a guide groove portion having a guide slit having a width larger than the width of the guide groove portion.

According to an aspect of the present invention, there is provided a lens assembly, which is provided in the guide groove portion and is provided with a locking member protruding from a twist path of the head or the neck so that the head or the neck of the protrusion can be engaged, ; ≪ / RTI >

According to an aspect of the present invention, the assembling member may include a magnetic member provided in the guide groove and installed in a twist path of the head or the neck so that the head or the neck of the protrusion may be magnetically coupled, As shown in FIG.

According to an aspect of the present invention, the neck portion of the protrusion portion may include: a first neck portion having a first height from the distal end surface so as to adjust the height of the lens member in multiple stages; And a second neck having a second height from the distal end surface.

According to an aspect of the present invention, a plurality of projections of the assembling member are equally arranged on the rim of the lens member or the lens cap, and the lens support is mounted on the substrate and / or the upper surface of the substrate, And may be a reflective encapsulant to be formed.

According to another aspect of the present invention, there is provided a light emitting device package including: a substrate; A reflective encapsulant provided on the substrate and having a reflective cup portion; A light emitting element mounted on the substrate inside the reflection cup portion; A lens member assembled to the substrate or the reflective encapsulant; And an assembling member provided between the substrate or the reflective encapsulant and the lens member such that the substrate or the reflective encapsulant and the lens member are detachably assembled to each other, And can be a twist cap type assembling member that is fixed by an operation of inserting and twisting.

According to an aspect of the present invention, there is provided a light emitting device package module including: a substrate; A light emitting device package mounted on the substrate; A lens member assembled to the substrate; And an assembling member provided between the substrate and the lens member such that the substrate and the lens member are detachably assembled to each other, wherein the assembling member includes a twist member fixed by an operation of inserting a protrusion into the groove, Cap assembly member.

According to another aspect of the present invention, there is provided a backlight unit comprising: a substrate; A light emitting device package mounted on the substrate; A lens member assembled to the substrate; An assembly member installed between the substrate and the lens member such that the substrate and the lens member are detachably assembled with each other; And a light guide plate installed in a light emitting path of the light emitting device package. The assembling member may be a twist cap type assembling member that is fixed by an operation of inserting a protrusion into the groove and twisting.

According to an aspect of the present invention, there is provided a lighting apparatus comprising: a substrate; A light emitting device package mounted on the substrate; A lens member assembled to the substrate; And an assembling member provided between the substrate and the lens member such that the substrate and the lens member are detachably assembled to each other, wherein the assembling member includes a twist member fixed by an operation of inserting a protrusion into the groove, Cap assembly member.

According to another aspect of the present invention, there is provided a display device comprising: a substrate; A light emitting device package mounted on the substrate; A lens member assembled to the substrate; An assembly member installed between the substrate and the lens member such that the substrate and the lens member are detachably assembled with each other; And a light guide plate installed in a light emitting path of the light emitting device package. The assembling member may be a twist cap type assembling member that is fixed by an operation of inserting a protrusion into the groove and twisting.

According to some embodiments of the present invention as described above, it is possible to easily attach and detach a lens, align the lens very easily and precisely, and be structurally robust to improve the durability and reliability of the product, It has excellent aesthetic appearance, can adjust the height of the lens in multiple stages, is easy to use, has good ventilation and good heat dissipation, and can be applied to various products to produce differentiated products and produce high quality products. Of course, the scope of the present invention is not limited by these effects.

1 is an exploded perspective view of a part of a lens assembly according to some embodiments of the present invention.
Figure 2 is a partial cross-sectional view of the lens assembly of Figure 1 partially cut away.
Fig. 3 is a plan view showing the step of inserting the projection of the assembling member of the lens assembly of Fig. 1;
Figure 4 is a plan view showing the protruding twist engaging step of the assembling member of the lens assembly of Figure 3;
Fig. 5 is an enlarged cross-sectional view showing an enlarged projection of the assembling member of the lens assembly of Fig. 2; Fig.
FIG. 6 is an enlarged plan view showing a groove portion and a projection portion of the assembling member of the lens assembly of FIG. 3 in an enlarged manner.
Figure 7 is an enlarged plan view according to another embodiment of the groove portion of the assembly member of the lens assembly of Figure 3;
8 is an enlarged cross-sectional view illustrating a protrusion of a lens assembly according to some alternative embodiments of the present invention.
9 is a partial cross-sectional view showing the two-stage fastening state of the lens assembly of FIG.
10 is a partial cross-sectional view showing the first stage fastening state of the lens assembly of FIG.
11 is a partial cross-sectional view illustrating a lens assembly in accordance with some further embodiments of the present invention.
12 is a partial cross-sectional view showing a two-stage fastening state of a lens assembly according to still another embodiment of the present invention.
13 is a partial cross-sectional view showing a state where the lens assembly of Fig. 12 is fastened in one stage.
14 is a cross-sectional view illustrating a display device according to some embodiments of the present invention.
15 is a partially exploded perspective view of a light emitting device package module according to some embodiments of the present invention.
16 is a part exploded perspective view showing a lighting apparatus according to some embodiments of the present invention.
17 is an enlarged plan view according to another embodiment of the groove portion of the assembling member of the lens assembly of Fig.

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

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, if the element is inverted in the figures, the elements depicted as being on the upper surface of the other elements will have a direction on the lower surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

1 is an exploded perspective view of a part of a lens assembly 100 according to some embodiments of the present invention. 3 is a plan view showing a step of inserting the protrusion 32 of the assembling member 30 of the lens assembly 100 of FIG. 1, and FIG. And Fig. 4 is a plan view showing the step of engaging the protrusion 32 of the assembling member 30 of the lens assembly 100 of Fig.

5 is an enlarged sectional view showing an enlarged projection 32 of the assembling member 30 of the lens assembly 100 of Fig. 2 and Fig. 6 is an enlarged sectional view of the assembling member 30 of the lens assembly 100 of Fig. Fig. 3 is an enlarged plan view showing the groove 31 and the protrusion 32 in an enlarged manner.

1 to 6, a lens assembly 100 according to some embodiments of the present invention includes a lens support 10, a lens member 20, and an assembly member 30 can do.

More specifically, for example, the lens support 10 may be made of a material or an electrically conductive material having appropriate mechanical strength and insulating properties capable of sufficiently supporting or accommodating the lens member 20 and the light emitting element 1 or the light emitting element package .

For example, the lens support 10 may include a substrate 11 and a reflective encapsulant 12 disposed on the upper surface of the substrate 12 and having a reflective cup 13 formed thereon.

Here, the substrate 11 may be a molding resin structure in which an electrode layer is formed. In addition, the substrate 11 may be a printed circuit board (PCB) having a plurality of epoxy resin sheets formed thereon. In addition, the substrate 11 may be a Flexible Printed Circuit Board (FPCB) made of a flexible material.

In addition, the substrate 11 may be a synthetic resin substrate such as resin or glass epoxy, or a ceramic substrate in consideration of thermal conductivity.

The substrate 11 may be formed by partially or wholly selecting at least one of EMC (Epoxy Mold Compound), PI (polyimide), ceramic, graphene, glass synthetic fiber and combinations thereof in order to improve workability Lt; / RTI >

In addition, the substrate 11 may be a lead frame in which a first electrode is provided in one direction relative to the electrode separation space, and a second electrode is provided in the other direction.

For example, the substrate 11 may be formed of a metal material such as aluminum, copper, zinc, tin, lead, gold or silver, which is insulated, or may be a lead frame in the form of a perforated or bent plate.

The reflective encapsulant 12 may be integrally molded on the upper surface of the substrate 11 so that the reflective cup 13 is formed by a mold.

Here, the light emitting device 1 may be inserted into the reflective cup 13 and mounted on the substrate 11. [

In addition, the reflective encapsulant 12 may be formed of an epoxy resin composition, a silicone resin composition, a modified epoxy resin composition, a modified silicone resin composition, a polyimide resin composition, a modified polyimide resin composition, a polyphthalamide (PPA), a polycarbonate resin , A polyphenylene sulfide (PPS), a liquid crystal polymer (LCP), an ABS resin, a phenol resin, an acrylic resin, a PBT resin, a Bragg reflection layer, an air gap, It can be done by selecting more than one.

Also, the reflective encapsulant 12 may be made of at least one selected from the group consisting of EMC including a reflective material, white silicon containing a reflective material, a photoimageable solder resist (PSR), and combinations thereof.

More specifically, for example, the reflective encapsulant 12 may be a silicone resin composition, a modified epoxy resin composition such as a silicone-modified epoxy resin, a modified silicone resin composition such as an epoxy-modified silicone resin, a polyimide resin composition , Modified polyimide resin composition, resin such as polyphthalamide (PPA), polycarbonate resin, polyphenylene sulfide (PPS), liquid crystal polymer (LCP), ABS resin, phenol resin, acrylic resin and PBT resin have.

It is also possible to add a light reflecting material such as titanium oxide, silicon dioxide, titanium dioxide, zirconium dioxide, potassium titanate, alumina, aluminum nitride, boron nitride, mullite, chromium, have.

Meanwhile, the lens member 20 may be a lens of a translucent material, which is assembled to the lens support 10, and a lens cap which surrounds the lens.

The shape, position, shape, and structure of the lens can be variously applied depending on the light emitting characteristics of the light emitting device 1, the use environment, and the like.

Here, the light emitting device 1 may be a flip chip LED (Light Emitting Diode) having a first pad and a second pad.

The light emitting device 1 may be made of a semiconductor, as shown in FIG. For example, LEDs of blue, green, red, and yellow light emission, LEDs of ultraviolet light emission, and LEDs of infrared light emission, which are made of a nitride semiconductor, can be applied. The nitride semiconductor is represented by a general formula Al _x Ga _y In _z N (0? X? 1, 0? Y? 1, 0? Z? 1, x + y + z = 1).

The light emitting device 1 is formed by epitaxially growing nitride semiconductors such as InN, AlN, InGaN, AlGaN, and InGaAlN on a sapphire substrate for growth or a silicon carbide substrate by a vapor phase growth method such as MOCVD To grow. In addition to the nitride semiconductor, the light emitting element 1 may be formed using semiconductors such as ZnO, ZnS, ZnSe, SiC, GaP, GaAlAs, and AlInGaP. These semiconductors can be stacked in the order of an n-type semiconductor layer, a light emitting layer, and a p-type semiconductor layer. The light emitting layer (active layer) may be a laminated semiconductor having a multiple quantum well structure or a single quantum well structure or a laminated semiconductor having a double hetero structure. Further, the light emitting element 1 can be selected to have any wavelength depending on the application such as display use or illumination use.

Here, as the growth substrate, an insulating, conductive or semiconductor substrate may be used if necessary. For example, the growth substrate may be sapphire, SiC, Si, MgAl 2 O 4, MgO, LiAlO 2, LiGaO 2, GaN. A GaN substrate, which is a homogeneous substrate, is preferable for epitaxial growth of a GaN material, but a GaN substrate has a problem of high production cost due to its difficulty in manufacturing.

Sapphire and silicon carbide (SiC) substrates are mainly used as the different substrates. Sapphire substrates are more utilized than expensive silicon carbide substrates. When using a heterogeneous substrate, defects such as dislocation are increased due to the difference in lattice constant between the substrate material and the thin film material. Also, due to the difference in the thermal expansion coefficient between the substrate material and the thin film material, warping occurs at a temperature change, and warping causes a crack in the thin film. This problem may be reduced by using a buffer layer between the substrate and the GaN-based light emitting laminate.

In addition, the substrate for growth may be completely or partially removed or patterned in order to improve the optical or electrical characteristics of the LED chip before or after the growth of the LED structure.

For example, in the case of a sapphire substrate, the substrate can be separated by irradiating the laser to the interface with the semiconductor layer through the substrate, and the silicon or silicon carbide substrate can be removed by a method such as polishing / etching.

Another supporting substrate may be used for removing the growth substrate. In order to improve the light efficiency of the LED chip on the opposite side of the growth substrate, the supporting substrate may be bonded using a reflective metal, As shown in FIG.

In addition, patterning of the growth substrate improves the light extraction efficiency by forming irregularities or slopes before or after the LED structure growth on the main surface (front surface or both sides) or side surfaces of the substrate. The size of the pattern can be selected from the range of 5 nm to 500 μm and it is possible to make a structure for improving the light extraction efficiency with a rule or an irregular pattern. Various shapes such as a shape, a column, a mountain, a hemisphere, and a polygon can be adopted.

In the case of the sapphire substrate, the crystals having a hexagonal-rhombo-cubic (Hexa-Rhombo R3c) symmetry have lattice constants of 13.001 and 4.758 in the c-axis direction and the a-axis direction, respectively, and have C plane, A plane and R plane. In this case, the C-plane is relatively easy to grow the nitride film, and is stable at high temperature, and thus is mainly used as a substrate for nitride growth.

Another material of the growth substrate is a Si substrate, which is more suitable for large-scale curing and relatively low in cost, so that mass productivity can be improved.

In addition, since the silicon (Si) substrate absorbs light generated from the GaN-based semiconductor and the external quantum efficiency of the light emitting device is lowered, the substrate may be removed as necessary, and Si, Ge, SiAl, A support substrate such as a metal substrate is further formed and used.

When a GaN thin film is grown on a different substrate such as the Si substrate, the dislocation density increases due to the lattice constant mismatch between the substrate material and the thin film material, and cracks and warpage Lt; / RTI > The buffer layer may be disposed between the growth substrate and the light emitting stack for the purpose of preventing dislocation and cracking of the light emitting stack. The buffer layer also functions to reduce the scattering of the wavelength of the wafer by adjusting the degree of warping of the substrate during the growth of the active layer.

Herein, the buffer layer may be made of Al _x In _y Ga _1-xy N (0? X? 1, 0? _Y? 1, x + y? 1), in particular GaN, AlN, AlGaN, InGaN or InGaNAlN. Materials such as ZrB2, HfB2, ZrN, HfN and TiN can also be used as needed. Further, a plurality of layers may be combined, or the composition may be gradually changed.

Although not shown, the light emitting element 1 may be a flip chip type having a signal transmitting medium such as a pump or a solder in addition to the pads P1 and P2. In addition, a bonding wire may be applied to the terminal, A light emitting element to which a bonding wire is applied only to the first terminal or a second terminal in part, or a horizontal or vertical type light emitting element can be applied.

In addition, the first pad and the second pad may be modified into various shapes other than the shapes shown in FIG. 1, and may have a finger structure having a plurality of fingers on one arm, for example.

As shown in FIG. 1, the light emitting device 1 may be provided on the substrate 11, or may be provided on the substrate 11.

1 to 6, the assembling member 30 is fixed to the lens support 10 and the lens 20 such that the lens support 10 and the lens 20 are detachably assembled to each other, And may be a twist cap type assembling member which is installed between the members 20 and is fixed by an operation of inserting the protrusion 32 into the groove 31 and twisting it.

More specifically, for example, as shown in FIGS. 1 to 6, the protrusion 32 of the assembling member 30 may be integrally or separately provided to the lens member 20 A head portion 32-1 having a relatively large width W1 at the tip and a neck portion 32-2 having a relatively small width W2 in the middle.

The head 32-1 and the neck 32-2 may be formed on the lower surface of the lens member 20 so as to protrude toward the lens support 10.

For example, as shown in FIG. 1, four protrusions 32 of the assembling member 30 may be equally arranged on the rim of the lens member 20 or the lens cap.

However, the number, shape, size, and position of the protrusions 32 are not limited to those shown in the drawings, but may be provided in various shapes, sizes, and positions.

1 to 6, the grooves 31 of the assembling member 30 may be integrally or separately provided on the lens support 10, and the protrusions 32 An inlet groove portion 31-1 having an inlet of a width W3 larger than a width W1 of the head portion 32-1 so that the head portion 32-1 of the inlet portion The moving space A of the head part 32-1 is formed inside the head part 32-1 of the protruding part 32 that has passed through the head part 31-1 so that the head part 32-1 can be twisted along the twist path Of the width W4 of the protrusion 32 that is smaller than the width W1 of the head 32-1 of the protrusion 32 and is larger than the width W2 of the neck 32-2 of the protrusion 32 And a guide groove 31-2 having a guide slit.

The inlet groove 31-1 and the guide groove 31-2 are formed in a shape corresponding to the head 32-1 and the neck 32-2. For example, The guide groove 31-1 and the guide groove 31-2 may be formed in the reflective encapsulant 12 and the moving space A may be formed in the substrate 11. [

However, the number, shape, size, and position of the grooves 31 are not limited to those shown in the drawings, but may be provided in various shapes, sizes, and positions.

1, the protrusions 32 of the lens member 20 may be formed in a shape of a curved surface of the lens assembly 100, Can be inserted into the groove portion (31) of the lens support body (10).

3, since the inlet groove 31-1 has an inlet width W3 greater than the width W1 of the head 32-1, The head portion 32-1 can be sufficiently inserted into the groove portion 31-1 of the groove portion 31. [

4, the head 32-1 of the protrusion 32 passing through the inlet groove 31-1 can be twisted along the twist path.

At this time, since the guide slit of the guide groove 31-2 is formed to have a width W4 larger than the width W2 of the neck 32-2 of the protrusion 32, Can be twisted along the guide slit of the guide groove 31-2.

However, since the guide slit of the guide groove 31-2 is smaller than the width W1 of the head 32-1 of the protrusion 32, the head 32-1 has the guide groove 31-2 so that they can be firmly engaged with each other without coming out of the guide groove 31-2.

Therefore, it is possible to easily attach and detach the lens member 20 by providing a simple twist operation by providing the assembling member 30 of the twist cap type, and to align the lens member 20 very easily and precisely, So that the durability and the reliability of the product can be improved.

7 is an enlarged plan view according to another embodiment of the groove 31 of the assembling member of the lens assembly of FIG.

7, the assembling member is provided in the guide groove 31-2, and the head 32-1 or the neck 32-2 of the protrusion 32 is engaged with the guide groove 31-2, And a locking member 33 protruding from the twist path of the head portion 32-1 or the neck portion 32-2 so as to allow the head 32-1 or the neck 32-2 to move. Here, the latching member 33 may be provided with hemispherical protrusions or protrusions of various shapes in order to reduce friction with the neck 32-2.

Therefore, it is difficult for the neck 32-2, which has forcibly forcedly passed through the latching member 33, to be disassembled in the reverse direction by the latching member 33, so that it is possible to connect more rigid parts.

Figure 8 is an enlarged cross-sectional view showing the protrusion 32 of the lens assembly 200 according to some alternative embodiments of the present invention. FIG. 9 is a partial cross-sectional view showing the two-stage fastening state of the lens assembly 200 shown in FIG. 8, and FIG. 10 is a partial cross-sectional view showing a single fastened state of the lens assembly 200 shown in FIG.

8, the neck 32-2 of the protrusion 32 has a first height H1 from the distal end face B so that the height of the lens member 20 can be adjusted in multiple stages, And a second neck 32-22 having a second height H2 from the distal end face B as shown in FIG. Although not shown in the drawing, it is also possible to provide a multi-stage multi-stage such as a third neck or a fourth neck.

9, the second neck portion 32-22 is inserted into the guide groove portion 31-2, as shown in FIG. 9, The height d1 of the lens member 20 can be adjusted in two stages with respect to the lens support 10 by inserting the first neck 32-21 Is inserted into the guide groove 31-2 so that the height d2 of the lens member 20 can be adjusted to one stage with respect to the lens support 10.

Therefore, it is possible to adjust the height of the lens member 20 in multiple stages according to the installation environment, so that it is convenient to use, has good ventilation and good heat dissipation, can be applied to various products, and can produce differentiated products and high quality products.

FIG. 11 is a partial cross-sectional view of lens assembly 300 in accordance with some further embodiments of the present invention, and FIG. 12 is a cross-sectional view of lens assembly 300 according to some further embodiments of the present invention, 13 is a partial cross-sectional view showing the first stage fastening state of the lens assembly 300 of FIG.

11 to 13, the protrusion 32 of the assembling member 30 can be integrally or separately provided to the lens support 10, and the entrance groove 31-1 And the guide groove 31-2 may be formed in the lens member 20 and the moving space A may be formed in the lens member 20.

12, a first neck portion 32-21 having a first height H1 from the front end face B so that the height of the lens member 20 can be adjusted in multiple stages, And a second neck 32-22 having a second height H2 from the cross-section (B).

12, the second neck portion 32-22 is twisted into the guide groove portion 31-2 to adjust the height of the lens member 20 with respect to the lens support body 10 13, the first neck 32-21 is twisted into the guide groove 31-2 to adjust the lens support 10 to the reference The height d2 of the lens member 20 can be adjusted to one stage.

1, a light emitting device package according to some embodiments of the present invention includes a substrate 11, a reflective encapsulant (not shown) provided on the substrate 11, A light emitting element 1 mounted on the substrate 11 in the reflection cup portion 13 and a lens member 20 assembled to the substrate 11 or the reflective encapsulant 12; The substrate 11 or the reflective encapsulant 12 and the lens member 20 so that the substrate 11 or the reflective encapsulant 12 and the lens member 20 are removably assembled to each other The assembling member 30 may be a twist cap type assembling member which is fixed by an operation of inserting the protrusion 32 into the groove 31 and twisting it.

1, the substrate 11, the reflective encapsulant 12, the light emitting element 1, the lens member 20, and the assembling member 30 are formed as described above, May be identical in function and configuration to the components of lens assembly 100 in accordance with some embodiments of the present invention. Therefore, detailed description is omitted.

14 is a cross-sectional view illustrating a backlight unit or display device 2000 according to some embodiments of the present invention.

14, a substrate 11, a light emitting device package 2 mounted on the substrate 11, a lens member 20 assembled to the substrate 11, (30) installed between the substrate (11) and the lens member (20) such that the lens member (20) and the lens member (20) are detachably assembled to each other, and a light guide plate The assembling member 30 may be a twist cap type assembling member which is fixed by an operation of inserting the protrusion 32 into the groove 31 and twisting it.

The display device 2000 may include various information terminals such as various mobile phones, a smart phone, a smart pad, a monitor, a TV, and a smart TV, and a video reproducing device.

15 is a part exploded perspective view showing a light emitting device package module 3000 according to some embodiments of the present invention.

15, a light emitting device package 3000 according to some embodiments of the present invention includes a substrate 11, a light emitting device package 2 that is seated on the substrate 11, And a lens assembly 20 installed between the substrate 11 and the lens member 20 so that the substrate 11 and the lens member 20 are removably assembled to each other, The assembling member 30 may be a twist cap type assembling member which is fixed by an operation of inserting the protrusion 32 into the groove 31 and twisting it.

1, the substrate 11, the reflective encapsulant 12, the light emitting device package 2, the lens member 20, and the assembling member 30, The role and configuration of the components of the lens assembly 100 according to some embodiments of the present invention described above may be the same. Therefore, detailed description is omitted.

16 is an exploded perspective view of a part of a lighting apparatus 4000 according to some embodiments of the present invention.

16, a lighting apparatus 4000 according to some embodiments of the present invention includes a substrate 11, a light emitting device package 2 that is seated on the substrate 11, An assembly member (30) provided between the substrate (11) and the lens member (20) so that the substrate (11) and the lens member (20) are detachably assembled to each other, And a light guide plate 40 installed in a light emitting path of the light emitting device package 2. The assembly member 30 is fixed by an operation of inserting the protrusion 32 into the groove 31 and twisting It may be a twist cap type assembling member.

On the other hand, although not shown, the present invention can include a lighting device including the lens assembly 100 described above. Here, the components of the illumination device according to some embodiments of the present invention may have the same configuration and function as those of the lens assembly of the present invention described above. Therefore, detailed description is omitted.

17 is an enlarged plan view according to another embodiment of the groove 31 of the assembling member of the lens assembly of FIG.

17, the assembling member is provided in the guide groove 31-2, and the head portion 32-1 or the neck portion 32-2 of the protrusion 32 is engaged with the magnetic coupling And a magnetic member 34 protruding from the twist path of the head portion 32-1 or the neck portion 32-2 so that the magnetic member 34 may be formed. Here, the magnetic member 34 is magnetically coupled with the head portion 32-1 or the neck portion 32-2 of the protruding portion 32 and the guide groove portion 31-2, Various types of magnetic force forming members such as permanent magnets and various magnetic bodies may be applied.

For example, the head portion 32-1 may be a steel member, and the magnetic member 34 may be a permanent magnet capable of magnetically coupling with the head portion 32-1.

Therefore, the far portion 32-1 or the neck portion 32-2 is difficult to be disassembled in the reverse direction by the magnetic member 34, so that it is possible to connect more rigid parts.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Light emitting element
2: Light emitting device package
10: Lens support
11: substrate
12: Reflective bag material
13: reflective cup
20: lens member
30: Assembly member
31: Groove
31-1: entrance groove portion
31-2: Guide groove
32: protrusion
32-1: Head
32-2: neck
32-21: 1st neck
32-22: 2nd neck
33:
34:
40: light guide plate
100, 200, 300, 400: lens assembly
1000: Backlight unit
2000: Display device
3000: Light emitting device package module
4000: Lighting system

Claims (11)

A lens support;
A lens member assembled to the lens support; And
An assembling member provided between the lens support and the lens member such that the lens support and the lens member are removably assembled to each other;
Lt; / RTI >
Wherein the assembling member is a twist cap type assembling member which is fixed by an operation of inserting a protrusion into the groove and twisting it,
Wherein the projecting portion of the assembling member
A head having a relatively large width at its tip; And
And a neck portion having a relatively small width in the middle,
Wherein the neck portion of the projection portion
A first neck portion having a first height from the distal end surface so as to adjust the height of the lens member in multiple stages; And
A second neck portion having a second height from the distal end surface;
≪ / RTI > The method according to claim 1,
Wherein the groove portion of the assembling member comprises:
An inlet groove portion having an inlet that is larger than the width of the head portion so that the head portion of the protruding portion can pass through; And
Wherein a moving space of the head is formed in the inside so that the head of the protrusion passing through the inlet groove part can be twisted along a twist path and is smaller than the width of the head part of the protrusion outside, A guide groove portion having a guide slit having a width larger than the width;
≪ / RTI > 3. The method of claim 2,
Wherein the assembling member includes:
An engaging member provided in the guide groove and protruding from a twist path of the head or the neck so that the head or the neck of the protrusion can be engaged;
≪ / RTI > 3. The method of claim 2,
Wherein the assembling member includes:
A magnetic member installed in the guide groove and installed in a twist path of the head or the neck so that the head or the neck of the protrusion can be magnetically coupled;
≪ / RTI > delete The method according to claim 1,
Wherein a plurality of protrusions of the assembling member are equally arranged on the rim of the lens member or the lens cap,
Wherein the lens support is a reflective encapsulant provided on a substrate and / or on a top surface of the substrate and in which a reflective cup is formed. Board;
A reflective encapsulant provided on the substrate and having a reflective cup portion;
A light emitting element mounted on the substrate inside the reflection cup portion;
A lens member assembled to the substrate or the reflective encapsulant; And
An assembly member provided between the substrate or the reflective encapsulant and the lens member so that the substrate or the reflective encapsulant and the lens member are detachably assembled with each other;
Lt; / RTI >
Wherein the assembling member is a twist cap type assembling member which is fixed by an operation of inserting a protrusion into the groove and twisting it,
Wherein the projecting portion of the assembling member
A head having a relatively large width at its tip; And
A neck having a relatively small width in the middle;
Emitting device package. Board;
A light emitting device package mounted on the substrate;
A lens member assembled to the substrate; And
An assembly member installed between the substrate and the lens member such that the substrate and the lens member are detachably assembled with each other;
Lt; / RTI >
Wherein the assembling member is a twist cap type assembling member which is fixed by an operation of inserting a protrusion into the groove and twisting it,
Wherein the projecting portion of the assembling member
A head having a relatively large width at its tip; And
A neck having a relatively small width in the middle;
Emitting device package module. Board;
A light emitting device package mounted on the substrate;
A lens member assembled to the substrate;
An assembly member installed between the substrate and the lens member such that the substrate and the lens member are detachably assembled with each other; And
A light guide plate installed in a light emitting path of the light emitting device package;
Lt; / RTI >
Wherein the assembling member is a twist cap type assembling member which is fixed by an operation of inserting a protrusion into the groove and twisting it,
Wherein the projecting portion of the assembling member
A head having a relatively large width at its tip; And
A neck having a relatively small width in the middle;
And a backlight unit. Board;
A light emitting device package mounted on the substrate;
A lens member assembled to the substrate; And
An assembly member installed between the substrate and the lens member such that the substrate and the lens member are detachably assembled with each other;
Lt; / RTI >
Wherein the assembling member is a twist cap type assembling member which is fixed by an operation of inserting a protrusion into the groove and twisting it,
Wherein the projecting portion of the assembling member
A head having a relatively large width at its tip; And
A neck having a relatively small width in the middle;
. Board;
A light emitting device package mounted on the substrate;
A lens member assembled to the substrate;
An assembly member installed between the substrate and the lens member such that the substrate and the lens member are detachably assembled with each other; And
A light guide plate installed in a light emitting path of the light emitting device package;
Lt; / RTI >
Wherein the assembling member is a twist cap type assembling member which is fixed by an operation of inserting a protrusion into the groove and twisting it,
Wherein the projecting portion of the assembling member
A head having a relatively large width at its tip; And
A neck having a relatively small width in the middle;
And a display device.

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