WO2019085162A1

WO2019085162A1 - Lighting positioning device

Info

Publication number: WO2019085162A1
Application number: PCT/CN2017/115635
Authority: WO
Inventors: 何怀亮
Original assignee: 惠科股份有限公司
Priority date: 2017-11-03
Filing date: 2017-12-12
Publication date: 2019-05-09

Abstract

A lighting positioning device (1), comprising a light guide plate (11), an incident light source assembly (12), and a frame (13). Two positioning members (111) are provided on a side of the light guide plate (11). The incident light source assembly (12) is adjoined to the light guide plate (11). The incident light source assembly (12) has a light source module (121) and a power supply delivery element (122). The power supply delivery element (122) is electrically connected to the light source module (121). The power supply delivery element (122) is provided with two snap-fit members (1221). The positioning members (111) are correspondingly snap-fitted to the snap-fit members (1221), respectively. The frame (13) is provided below the light guide plate (11) and the incident light source assembly (12).

Description

Luminous positioning device

Technical field

The present application relates to an illuminating positioning device, and more particularly to an illuminating positioning device that can reduce the assembly error between the light guide plate, the incident light source assembly, and the frame.

Background technique

Generally, a liquid crystal display device generally has a multi-layer structure such as a light guide plate, an incident light source assembly, a liquid crystal panel, a reflection plate, a diffusion plate, and a plastic frame. Conventionally, the light guide plate and the incident light source assembly are assembled on a plastic frame, usually after the incident light source assembly is mounted on the plastic frame, and then the light guide plate is installed into the plastic frame.

The side of the conventional plastic frame has a plurality of protrusions and a plurality of concave portions, and the protrusions and the concave portions are formed on the side edges in a staggered manner. In addition, the conventional incident light source assembly mainly includes a flexible circuit board and a plurality of light source modules, and each of the light source modules may include a light emitting diode (LED). When the light guide plate and the incident light source assembly are assembled in the plastic frame to form the light-emitting positioning device, the incident light source assembly is first mounted on the side of the plastic frame, and at this time, the plurality of light source modules of the incident light source assembly are Located in a plurality of recesses on the side.

However, since the plastic frame itself has manufacturing tolerances in the forming process, and the light guide plate is assembled in the plastic frame, and the incident light source assembly is mounted on the plastic frame, assembly errors may occur, so The assembled light-emitting positioning device may be too large or uncontrollable between the light-incident surface of the light guide plate and the light-emitting surface of the light source module, and the center line of the light source module (or light-emitting diode) of the incident light source assembly and the light guide plate There will be an offset between the centerlines. These accumulated assembly errors may cause the light emitted by the light source module (or the light emitting diode) to be effectively utilized by the light guide plate, thereby causing insufficient brightness of the light guide plate to affect the performance of the liquid crystal display device.

In addition to the disadvantages described above, conventional light-emitting positioning devices are also inconvenient in assembly, thereby increasing the time and labor costs required for manufacturing.

In view of the above, it is an object of the present invention to provide an improved light-emitting positioning device that overcomes the above-mentioned problems and thereby enables the overall brightness of the light-emitting positioning device or the liquid crystal display device. Sufficiently improved.

Summary of the invention

In view of this, the inventors have obtained this application after research and development. The purpose of the application is to provide a light-emitting positioning device, which can greatly improve the overall brightness of the light-emitting positioning device or the liquid crystal display device.

The application provides a light-emitting positioning device comprising a light guide plate, an incident light source assembly, and a frame. Two positioning members are disposed on the side of the light guide plate, and the incident light source assembly is adjacent to the light guide plate. The incident light source assembly has a light source module and a power transmission component. The power transmission component is electrically connected to the light source module. The power transmission component is provided with two latching members, and the positioning component respectively engages with the latching component. A frame is disposed under the light guide plate and the incident light source assembly.

The present application provides a light-emitting positioning device comprising a light guide plate, an incident light source assembly, a plurality of adhesive members, and a frame. The incident light source assembly is adjacent to the light guide plate, and the incident light source assembly has a light source module. The adhesive member is rectangular and has a rectangular bonding surface, and the bonding component is disposed on the side of the light source module or the light guiding plate. When the bonding component is disposed on the light source module, the rectangular bonding surface of the bonding component is adhered to the light guiding plate. When the adhesive member is disposed on the side of the light guide plate, the light source module is adhered to the rectangular adhesive surface of the adhesive member to be fixed to the side of the light guide plate. The frame is disposed under the light guide plate and the incident light source assembly.

The application provides a light-emitting positioning device comprising a light guide plate, an incident light source assembly, and a frame. Two recessed portions are disposed on the side of the light guide plate, and the incident light source assembly is adjacent to the light guide plate. The incident light source assembly has a light source module and a power transmission component, and the power transmission component is electrically connected to the light source module. The power transmission element has two protrusions, and the protrusions are correspondingly engaged with the recesses. The frame is disposed under the light guide plate and the incident light source assembly.

In an embodiment, the light guide plate further has a body, and the incident light source assembly is adjacent to the body.

In an embodiment, the positioning members respectively have a convex portion, and the engaging members respectively have a concave portion, and the convex portion and the concave portion are correspondingly engaged.

In an embodiment, the positioning members respectively have a concave portion, and the engaging members respectively have a convex portion, and the convex portion and the concave portion are correspondingly engaged.

In an embodiment, the protrusion has a rectangular shape.

In an embodiment, the light source module further has a light emitting element.

In an embodiment, the light guide plate further has a body, and the light emitting element is aligned with the center of the body of the light guide plate.

In one embodiment, the light emitting element is selected from the group consisting of a light emitting diode, an organic light emitting diode, a cold cathode fluorescent tube, a hot cathode fluorescent tube, and a fluorescent lamp.

In one embodiment, the power transfer component is a flexible printed circuit board or a printed circuit board.

In an embodiment, the projection has a rectangular shape.

In an embodiment, the recesses respectively have a concave member, and the protruding portions respectively have a convex member, and the convex member and the concave member are correspondingly engaged.

In one embodiment, the recesses respectively have a protruding member, and the protruding portions respectively have a concave member, and the protruding member and the concave member are correspondingly engaged.

In summary, in the light-emitting positioning device of the present application, the overall brightness of the light-emitting positioning device or the liquid crystal display device can be greatly improved by the above-described component structure and connection relationship.

DRAWINGS

The drawings are included to provide a further understanding of the embodiments of the present application, and are intended to illustrate the embodiments of the present application Obviously, the drawings in the following description are only some of the embodiments of the present application, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor. In the drawing:

1 is a schematic diagram of an embodiment of a light-emitting positioning device of the present application.

2 is another schematic diagram of an embodiment of a light-emitting positioning device of the present application.

3 is a schematic diagram of an embodiment of a light-emitting positioning device of the present application.

4 is another schematic diagram of an embodiment of a light-emitting positioning device of the present application.

FIG. 5 is another schematic diagram of an embodiment of a light-emitting positioning device of the present application.

6 is a schematic diagram of an embodiment of a light-emitting positioning device of the present application.

7 is another schematic diagram of an embodiment of a light-emitting positioning device of the present application.

Detailed ways

The specific structural and functional details disclosed herein are merely representative and are for the purpose of describing exemplary embodiments of the present application. The present application, however, may be embodied in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

In the description of the present application, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship of the "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present application and simplified description, and does not indicate or imply the indicated device. Or the components must have a particular orientation, constructed and operated in a particular orientation, and thus are not to be construed as limiting. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present application, "a plurality" means two or more unless otherwise stated. In addition, the term "comprises" and its variations are intended to cover a non-exclusive inclusion.

In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

Embodiments of the illuminating and positioning device according to the present application will be described below with reference to the related drawings, wherein like elements will be described with the same reference numerals.

FIG. 1 is a schematic diagram of an embodiment of a light-emitting positioning device 1 of the present application. Figure 2 is issued in the present application Another schematic diagram of an embodiment of the light positioning device 1. 3 is a schematic diagram of an embodiment of a light-emitting positioning device 2 of the present application. 4 is another schematic diagram of an embodiment of the illuminating positioning device 2 of the present application. Figure 5 is another schematic view of an embodiment of the illuminating positioning device 2' of the present application. FIG. 6 is a schematic diagram of an embodiment of the illuminating positioning device 3 of the present application. FIG. 7 is another schematic diagram of an embodiment of the illuminating and positioning device 3 of the present application.

Referring to FIGS. 1 and 2, the light-emitting positioning device 1 includes a light guide plate 11, an incident light source assembly 12, and a frame 13.

Two positioning members 111 are disposed on the side of the light guide plate 11. The incident light source assembly 12 is adjacent to the light guide plate 11 , and the incident light source assembly 12 has a light source module 121 and a power transmission element 122 . The power transmission component 122 is electrically connected to the light source module 121. The power transmission element 122 is provided with two engaging members 1221 , and the positioning members 111 are respectively engaged with the engaging members 1221 . The frame 13 is disposed under the light guide plate 11 and the incident light source assembly 12.

More specifically, the light guide plate 11 has a body 112 adjacent to the body 112. The incident light source assembly 12 has a plurality of light source modules 121. The light source modules 121 are disposed on the power transmission component 122 and are electrically connected to the power transmission component 122. Therefore, the light source module 121 can be powered by the power transmission component 122. And get electricity. In particular, in the present embodiment, the power transfer component 122 can be a flexible printed circuit board (FPCB) or a printed circuit board (PCB).

In this embodiment, the light source module 121 further has a light emitting element 1211. As for the form of the light-emitting element 1211, a light-emitting diode (LED), an organic light-emitting diode (OLED), a cold cathode fluorescent lamp (CCFL), a hot cathode fluorescent tube or a fluorescent lamp may be used, and the present application is not limited.

In this embodiment, the two positioning members 111 respectively have a convex portion 1111. The two engaging members 1221 respectively have a concave portion 1223. The convex portion 1111 and the concave portion 1223 are correspondingly engaged, as shown in FIG. Alternatively, the two positioning members 111 respectively have a recess 1112. The two engaging members 1221 respectively have a convex portion 1222. The concave portion 1112 and the convex portion 1222 are correspondingly engaged, as shown in FIG. 2 . The above two methods can complete the assembly of the light-emitting positioning device 1 to fix the incident light source assembly 12 to the light guide plate 11, and then mount the incident light source assembly 12 and the light guide plate 11 to the frame 13.

In the present embodiment, the light-emitting positioning device 1 has the following advantages: (1) due to the incident light source The assembly 12 is directly fixed to the light guide plate 11 so that the assembly error is greatly reduced, so that the light-emitting element 1211 is directly aligned with the center of the body 112 of the light guide plate 11 to inject light, and therefore, the light-emitting element 1211 is incident. The light can be effectively utilized by the light guide plate 11, thereby improving the overall brightness of the light-emitting positioning device 1 (or a liquid crystal display device); (2) the assembly of the light-emitting positioning device 1 is simple, thereby reducing the time and labor cost required for manufacturing; (3) The structure of the frame 13 is simplified, the structure of the projection 12 and the recessed portion 13 in the conventional rubber frame is omitted, so that the time and cost required for manufacturing can be reduced; and (4) due to the frame 13 The structure is more simplified, so it has more space than the conventional plastic frame, and this extra space can also be used for other applications.

It can be seen from FIG. 1 and FIG. 2 that the light-emitting positioning device 1 of the present application is provided with two positioning members 111 on the side of the light guide plate 11, and the power transmission element 122 is provided with two engaging members 1221. 111 is respectively engaged with the engaging member 1221, so that the overall brightness of the light-emitting positioning device 1 or the liquid crystal display device can be greatly improved.

Referring to FIGS. 3 and 4, the light-emitting positioning device 2 includes a light guide plate 21, an incident light source assembly 22, and a frame 23.

A plurality of adhesive members 211 are disposed on the side of the light guide plate 21. The incident light source assembly 22 is adjacent to the light guide plate 21, and the incident light source assembly 22 has a light source module 221 and a power transmission element 222. The power transmission component 222 is electrically connected to the light source module 221 . The light source module 221 is adhered to the adhesive member 211 and fixed to the side of the light guide plate 21 . The frame 23 is disposed under the light guide plate 21 and the incident light source assembly 22.

More specifically, the light guide plate 21 has a body 212 adjacent to the body 212. The light source module 22 has a plurality of light source modules 221 , and the light source modules 221 are disposed on the power transmission component 222 and electrically connected to the power transmission component 222 . Therefore, the light source module 221 can be powered by the power transmission component 222 . And get electricity. In particular, in the present embodiment, the power transmission component 222 can be a flexible printed circuit board (FPCB) or a printed circuit board (PCB).

In this embodiment, the light source module 221 further has a light emitting element 2211. As for the form of the light-emitting element 2211, a light-emitting diode (LED), an organic light-emitting diode (OLED), a cold cathode fluorescent lamp (CCFL), a hot cathode fluorescent tube or a fluorescent lamp may be used. No limit.

Referring to Fig. 5, the light-emitting positioning device 2' includes a light guide plate 21', an incident light source assembly 22', and a frame 23' (the structure and arrangement position of the frame 23' is the same as that shown in Fig. 3).

The incident light source assembly 22' is adjacent to the light guide plate 21', and the incident light source assembly 22' has a light source module 221' and a power transmission element 222'. The power transmitting element 222' is electrically connected to the light source module 221'. The light source module 221' is provided with a plurality of bonding members 2211', and the bonding members 2211' are adhered to the side edges of the light guiding plate 21'.

More specifically, the light guide plate 21' has a body 211' adjacent to the body 211'. The incident light source assembly 22' has a plurality of light source modules 221', and the light source modules 221' are disposed on the power transmission element 222', and are electrically connected to the power transmission element 222'. Therefore, the light source module 221' can Power is obtained by the power transfer element 222'. In particular, in the present embodiment, the power transfer element 222' can be a flexible printed circuit board (FPCB) or a printed circuit board (PCB).

In the present embodiment, the light source module 221' further has a light-emitting element 2212'. As for the form of the light-emitting element 2212', a light-emitting diode (LED), an organic light-emitting diode (OLED), a cold cathode fluorescent lamp (CCFL), a hot cathode fluorescent lamp or a fluorescent lamp may be used, and the present application is not limited.

In the present embodiment, the light-emitting positioning devices 2, 2' have the following advantages: (1) since the incident light source assemblies 22, 22' are directly fixed to the light guide plates 21, 21', the assembly error is greatly reduced, thereby making The light-emitting elements 2211, 2212' directly align with the center of the bodies 212, 211' of the light guide plates 21, 21' to inject light, and therefore, the light incident on the light-emitting elements 2211, 2212' can be effectively guided by the light guide plate 21, 21' utilization, thereby improving the overall brightness of the light-emitting positioning device 2, 2' (or a liquid crystal display device); (2) the assembly of the light-emitting positioning devices 2, 2' is simple, thereby reducing the time and labor cost required for manufacturing; (3) The structure of the frame 23, 23' is simplified, the structure of the projection 12 and the recessed portion 13 in the conventional plastic frame is omitted, so that the time and cost required for manufacturing can be reduced; and (4) The structure of the frame 23, 23' is relatively simplified, so that it has more space than the conventional plastic frame, and this extra space can also be used for other applications.

As can be seen from FIG. 3 and FIG. 4, the light-emitting positioning device 2 of the present application is provided on the light guide plate 21. The design of the plurality of adhesive members 211 is disposed on the side, so that the light source module 221 and the light guide plate 21 can be fixed to each other, so that the overall brightness of the light-emitting positioning device 2 or the liquid crystal display device can be greatly improved. In addition, as shown in FIG. 5, the light-emitting positioning device 2' of the present application can fix the light source module 221' and the light guide plate 21' to each other by designing a plurality of bonding members 2211' in the light source module 221'. Further, the overall brightness of the light-emitting positioning device 2' or the liquid crystal display device can be greatly improved.

Referring to FIGS. 6 and 7, the light-emitting positioning device 3 includes a light guide plate 31, an incident light source assembly 32, and a frame 33.

Two recessed portions 311 are provided on the side of the light guide plate 31. The incident light source assembly 32 is adjacent to the light guide plate 31. The incident light source assembly 32 has a light source module 321 and a power transmission element 322. The power transmission component 322 is electrically connected to the light source module 321 . The power transmission element 322 is provided with two protrusions 3221, and the recesses 311 are respectively engaged with the protrusions 3221. The frame 33 is disposed under the light guide plate 31 and the incident light source assembly 32.

More specifically, the light guide plate 31 has a body 312, and the incident light source assembly 32 is adjacent to the body 312. The incident light source assembly 32 has a plurality of light source modules 321 , which are all disposed on the power transmission component 322 and electrically connected to the power transmission component 322 . Therefore, the light source module 321 can be powered by the power transmission component 322 . And get electricity. In particular, in the present embodiment, the power transfer component 322 can be a flexible printed circuit board (FPCB) or a printed circuit board (PCB).

In this embodiment, the light source module 321 further has a light emitting element 3211. As for the form of the light-emitting element 3211, a light-emitting diode (LED), an organic light-emitting diode (OLED), a cold cathode fluorescent lamp (CCFL), a hot cathode fluorescent tube or a fluorescent lamp may be used, and the present application is not limited.

In this embodiment, in order to enhance the stability of the clamping, the two recessed portions 311 can respectively have a concave member, and the two protruding portions 3221 can respectively have a convex member, and the convex member and the concave member are correspondingly engaged (not shown) Show). Alternatively, the two recessed portions 311 may respectively have a convex member, and the two protruding portions 3221 may respectively have a concave member, and the concave member is correspondingly engaged with the protruding member (not shown). The ultimate goal of the above two assembly methods is to fix the incident light source assembly 32 to the light guide plate 31, and then mount the incident light source assembly 32 and the light guide plate 31 to the frame 33.

In the present embodiment, the light-emitting positioning device 3 has the following advantages: (1) since the incident light source assembly 32 is directly fixed to the light guide plate 31, the assembly error is greatly reduced, and thus the light-emitting element 3211 is directly aligned with the light guide plate. The light of the light-emitting element 3211 can be effectively utilized by the light guide plate 31, thereby improving the overall brightness of the light-emitting positioning device 3 (or a liquid crystal display device); (2) The assembly of the illuminating and positioning device 3 is simple, so that the time and labor cost required for manufacturing can be reduced. (3) The structure of the frame 33 is simplified, and the structure of the projection 12 and the recessed portion 13 in the conventional plastic frame is omitted. Therefore, the time and cost required for manufacturing can be reduced; and (4) since the structure of the frame 33 is simplified, it has more space than the conventional plastic frame, and the extra space can be used as other aspects. application.

As shown in FIG. 6 and FIG. 7 , the light-emitting positioning device 3 of the present application has a recessed portion 311 on the side of the light guide plate 31 , and the power transmission element 322 has a protruding portion 3221 and a protruding portion 3221 corresponding to the recessed portion 311 . The design of the engagement allows the light guide plate 31 and the incident light source assembly 32 to be fixed to each other, thereby further improving the overall brightness of the light-emitting positioning device 3 or the liquid crystal display device.

The above content is a further detailed description of the present application in conjunction with the specific embodiments, and the specific implementation of the present application is not limited to the description. It will be apparent to those skilled in the art that the present invention can be made in the form of the present invention without departing from the scope of the present invention.

Claims

A light-emitting positioning device comprising:

a light guide plate, two positioning members are disposed on a side of the light guide plate;

An incident light source assembly is adjacent to the light guide plate, the incident light source assembly has a light source module and a power transmission component, the power transmission component is electrically connected to the light source module, and the power transmission component is provided with two clamping components The positioning members are respectively engaged with the engaging members;

A frame is disposed under the light guide plate and the incident light source assembly.
The illuminating positioning device of claim 1, wherein the light guide plate further has a body, the incident light source assembly being adjacent to the body.
The illuminating and positioning device of claim 1 , wherein the positioning members respectively have a convex portion, and the engaging members respectively have a concave portion, and the convex portion is correspondingly engaged with the concave portion.
The illuminating and positioning device according to claim 1, wherein the positioning members respectively have a concave portion, and the engaging members respectively have a convex portion, and the convex portion is correspondingly engaged with the concave portion.
The illuminating positioning device according to claim 3, wherein the convex portion has a rectangular shape.
The illuminating positioning device according to claim 4, wherein the convex portion has a rectangular shape.
The illuminating positioning device according to claim 1, wherein the light source module further has a light emitting element.
The illuminating and positioning device of claim 7, wherein the light guide plate further has a body, and the illuminating element is centered on the body of the light guide plate.
The illuminating positioning device of claim 7, wherein the illuminating element is selected from the group consisting of a light emitting diode, an organic light emitting diode, a cold cathode fluorescent tube, a hot cathode fluorescent tube, and a fluorescent lamp.
The illuminating positioning device of claim 1 wherein the power transmitting component is a flexible printed circuit board or a printed circuit board.
A light-emitting positioning device comprising:

a light guide plate;

An incident light source assembly adjacent to the light guide plate, the incident light source assembly having a light source module;

a plurality of adhesive members, the adhesive members are rectangular and each have a rectangular bonding surface, and the adhesive member is disposed on the light source module or on a side of the light guide plate, when the adhesive member is disposed on the The rectangular bonding surface of the bonding component is adhered to the side of the light guiding plate when the light source module is disposed, and the light source module and the bonding component are disposed when the bonding component is disposed at a side of the light guiding plate The rectangular bonding surface is adhered and fixed to the side of the light guide plate, and

A frame is disposed under the light guide plate and the incident light source assembly.
The illuminating and positioning device of claim 11, wherein the light guide plate further has a body, the incident light source assembly being adjacent to the body.
The illuminating and positioning device of claim 11, wherein the incident light source assembly further has a power transmission component electrically connected to the light source module.
The illuminating positioning device according to claim 13, wherein the power transmitting member is a flexible printed circuit board or a printed circuit board.
A light-emitting positioning device comprising:

a light guide plate, two recessed portions are disposed on a side of the light guide plate;

An incident light source assembly is adjacent to the light guide plate. The incident light source assembly has a light source module and a power transmission component. The power transmission component is electrically connected to the light source module, and the power transmission component has two protrusions. The protruding portion is correspondingly engaged with the recessed portion;

A frame is disposed under the light guide plate and the incident light source assembly.
The illuminating and positioning device of claim 15, wherein the light guide plate further has a body, the incident light source assembly being adjacent to the body.
The illuminating positioning device according to claim 15, wherein said projection has a rectangular shape.
The illuminating and positioning device according to claim 15, wherein the recesses respectively have a concave member, and the protruding portions respectively have a convex member, and the convex member is correspondingly engaged with the concave member.
The illuminating and positioning device according to claim 15, wherein the recesses respectively have a protruding member, and the protruding portions respectively have a concave member, and the protruding member is correspondingly engaged with the concave member.
The illuminating positioning device according to claim 15, wherein the light source module further has a light emitting element.