CN103363388A - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN103363388A CN103363388A CN 201210097268 CN201210097268A CN103363388A CN 103363388 A CN103363388 A CN 103363388A CN 201210097268 CN201210097268 CN 201210097268 CN 201210097268 A CN201210097268 A CN 201210097268A CN 103363388 A CN103363388 A CN 103363388A
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- joint face
- backlight module
- lgp
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Abstract
The invention relates to a backlight module and a liquid crystal display device. The top face of a light guide plate of the backlight module comprises a light outgoing area, a bottom face and a light entering portion, wherein the light outgoing area is arranged directly facing a light outgoing face of the backlight module, the bottom face is arranged opposite to the light outgoing area, and the light entering portion is connected with the light outgoing area and the bottom face. The light entering portion comprises a first connecting face, a second connecting face and a third connecting face, wherein the first connecting face and the second connecting face are arranged on the two sides of the third connecting face respectively, the third connecting face faces light-emitting faces of at least two point light sources, one end of the first connecting face is connected with the bottom face, one end of the second connecting face is connected with the light outgoing area, the second connecting face close to one side of the light outgoing area is arranged opposite to the third connecting face, the shape formed by the first connecting face and the third connecting face indents into the inner side of the light guide plate to form a containing space which is used for containing at least two point light sources, a reflection structure is arranged on the second connecting face, the heading path of light which lights on the light guide plate through the third connecting face is changed when the light is reflected by the reflection structure on the second connecting face, and the light enters the position between the light outgoing area and the bottom face of the light guide plate. The backlight module is even in outgoing light.
Description
Technical field
The present invention relates to a kind of backlight module and liquid crystal indicator.
Background technology
In recent years, liquid crystal indicator takes up room little because volume is frivolous, and the advantage such as radiation is little shows the main flow of product and occupied gradually, and gradually replaced traditional CRT display.Liquid crystal indicator generally includes an area source, such as backlight module, for liquid crystal panel provides adequately and uniformly planar light of brightness.
Seeing also Fig. 1, is the schematic perspective view of backlight module in a kind of prior art.Backlight module 1 comprises a LGP 12 and three spot lights 13, and every bit light source 13 has a bright dipping side 131, and this three spot light 13 is set up in parallel, and has consistent light direction.This LGP 12 comprises the bottom surface 124 that an exiting surface 121, is oppositely arranged with exiting surface and is arranged between this exiting surface 121 and this bottom surface 124 and is connected respectively the incidence surface 123 that arranges with the two, the incidence surface 123 of this LGP 12 arranges over against the bright dipping side 131 of this three spot light 13, be used for receiving the light that this three spot light 13 sends, light is propagated after entering LGP 12 within it, via these exiting surface 121 outgoing, be used for providing planar light to liquid crystal panel.
This spot light 13 distributes a lot of heats when work, will set certain distance at two 13 adjacent of spot lights and dispel the heat.And this spot light 13 is subject to the impact of bright dipping side 131 sizes, and it has a lighting angle.Therefore, to keep certain spacing between this spot light 13 and LGP 12 incidence surfaces 123, could make light that two adjacent spot lights 13 send before entering this incidence surface 123 or enter before the position of liquid crystal panel viewing area, mixing of LGP 12, make the bright dipping of this LGP 12 comparatively even, observe this LGP 12 in exiting surface 121 sides, obvious bright dark fringe can not occur in the position near this incidence surface 123.Yet, day by day miniaturization along with product, guarantee in the exiting surface 121 big or small constant situations of this LGP 12, can only shorten the spacing between spot light 13 and the LGP 12, the light that can cause two adjacent spot lights 13 to send that arranges is not so mixed fully in the positions that enter LGP 12 rear close incidence surfaces 123, further cause observing this LGP 12 in exiting surface 121 sides, obvious bright dark fringe occurs in the position near this incidence surface 123.Then the bright dipping of this LGP 12 is inhomogeneous.
Summary of the invention
In order to solve the inhomogeneous problem of prior art backlight module bright dipping, be necessary to provide a kind of bright dipping uniform backlight module.
In addition, also be necessary to provide a kind of liquid crystal indicator that uses above-mentioned backlight module.
A kind of backlight module, it comprises at least two Dian Guang Yuan ﹑ exiting surfaces, LGP and catoptric arrangement in the light path between this at least two spot light and exiting surface, each this at least two spot light has a light-emitting area, this at least two spot light be set up in parallel and the light-emitting area setting party to identical, this LGP comprises end face, this end face comprises the bright dipping zone over against this backlight module exiting surface, this LGP also comprises the bottom surface that is oppositely arranged with this bright dipping zone and is connected the light in part of this bright dipping zone and this bottom surface, this light in part comprises the first joint face, the second joint face and the 3rd joint face, the first joint face and the second joint face lay respectively at the both sides of the 3rd joint face, the light that the 3rd joint face sends to receive at least two spot lights over against the light-emitting area of two spot lights at least, one end of this first joint face is connected with the 3rd joint face, a relative end links to each other with this bottom surface, one end of this second joint face is connected with the 3rd joint face, a relative end links to each other with this bright dipping zone, this second joint face and the 3rd joint face of contiguous this bright dipping zone one side are oppositely arranged, the inboard receiving space that forms of recessed this LGP of the shape that this first joint face and the 3rd joint face form is used for accommodating this at least two spot light, on this second joint face this catoptric arrangement is set, the light of injecting LGP via the 3rd joint face has changed travel path via the reflection of the catoptric arrangement that arranges on this second joint face, enters between the bright dipping zone and bottom surface of this LGP.
A kind of liquid crystal indicator, the backlight module that it comprises a liquid crystal panel and adjacent this liquid crystal panel and light source is provided for this liquid crystal panel, this backlight module comprises at least two Dian Guang Yuan ﹑ exiting surfaces, LGP and catoptric arrangement in the light path between this at least two spot light and exiting surface, each this at least two spot light has a light-emitting area, this at least two spot light be set up in parallel and the light-emitting area setting party to identical, this LGP comprises end face, this end face comprises the bright dipping zone over against this backlight module exiting surface, this LGP also comprises the bottom surface that is oppositely arranged with this bright dipping zone and is connected the light in part of this bright dipping zone and this bottom surface, this light in part comprises the first joint face, the second joint face and the 3rd joint face, the first joint face and the second joint face lay respectively at the both sides of the 3rd joint face, the light that the 3rd joint face sends to receive at least two spot lights over against the light-emitting area of two spot lights at least, one end of this first joint face is connected with the 3rd joint face, a relative end links to each other with this bottom surface, one end of this second joint face is connected with the 3rd joint face, a relative end links to each other with this bright dipping zone, this second joint face and the 3rd joint face of contiguous this bright dipping zone one side are oppositely arranged, the inboard receiving space that forms of recessed this LGP of the shape that this first joint face and the 3rd joint face form is used for accommodating this at least two spot light, on this second joint face this catoptric arrangement is set, the light of injecting LGP via the 3rd joint face has changed travel path via the reflection of the catoptric arrangement that arranges on this second joint face, enters between the bright dipping zone and bottom surface of this LGP.
Compared with prior art, the light that at least two spot lights of aforementioned backlight module send is reflexed in the bright dipping zone and the zone between the bottom surface of LGP by the catoptric arrangement that is arranged at this second joint face after via the 3rd joint face of LGP, prolonged the propagation path of light after entering LGP of spot light, light mixing effect is good, and the exiting surface size of former backlight module is unaffected.
Description of drawings
Fig. 1 is the schematic diagram of backlight module in the prior art.
Fig. 2 is the perspective exploded view of liquid crystal indicator one embodiment of the present invention.
Fig. 3 is the enlarged diagram at III place among Fig. 2.
Fig. 4 is the part assembling schematic diagram of backlight module among Fig. 2.
Fig. 5 is the generalized section at V-V place among Fig. 4.
Fig. 6 is the part schematic diagram of liquid crystal indicator the second embodiment of the present invention, and its slice location is identical with slice location among Fig. 4 shown in Figure 5, and liquid crystal panel and glue frame omit simultaneously.
Fig. 7 is the part schematic diagram of liquid crystal indicator the 3rd embodiment of the present invention, and its slice location is identical with slice location among Fig. 4 shown in Figure 5, and liquid crystal panel omits simultaneously.
The main element symbol description
| |
2 |
| |
22 |
| |
23、33、43 |
| The |
25、45 |
| |
24、44 |
| LGP | 26、36、46 |
| |
27、47 |
| |
28、48 |
| The |
262、362 |
| The |
263 |
| Light in |
261 |
| |
251、451 |
| Gripper |
252、452 |
| The first |
265 |
| The 3rd |
267、367 |
| First | 266、366、466 |
| |
268、368、468 |
| Third part | 269、369 |
| |
271 |
| |
272、372 |
| Light-emitting area | 273、373 |
| |
283 |
| Kink | 281、381 |
| |
280 |
| The |
286、386、486 |
| The |
288、388 |
| The |
282、382 |
The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
See also Fig. 2, Fig. 2 is the perspective exploded view of liquid crystal indicator the first embodiment of the present invention.This liquid crystal indicator 2 comprises a liquid crystal panel 22 and a backlight module 23.This backlight module 23 adjacent these liquid crystal panels 22 and provide backlight for this liquid crystal panel 22.
This backlight module 23 comprises glue frame 25, optical diaphragm group 24, LGP 26, light source 27 and catoptric arrangement (not indicating).In the present embodiment, this catoptric arrangement is reflector plate 28.This backlight module 23 comprises an exiting surface (not indicating).See also Fig. 3-Fig. 5, this LGP 26 comprises an end face (indicate), and this end face comprises that bright dipping zone 262, this LGP 26 comprise that also a bottom surface 263 and that is oppositely arranged with bright dipping zone 262 is in abutting connection with the light in part 261 of this exiting surface 262 with this bottom surface 263.The bright dipping zone 262 1 side settings of these optical diaphragm group 24 contiguous these LGPs 26, the light in part 261 1 side settings of these light source 27 contiguous these LGPs 26, the bottom surface 263 1 side settings of these reflector plate 28 contiguous these LGPs 26, this glue frame 25 is accommodated this optical diaphragm group 24, LGP 26, light source 27 and reflector plate 28.
This glue frame 25 is the framework of hollow, and it comprises four end to end sidewalls 251 and the gripper shoe 252 of extending from these glue frame 25 center positions of these four sidewalls, 251 interior side direction.This gripper shoe 252 is divided into two parts with the space that these glue frame 25 inboards surround, and a part is used for accommodating this liquid crystal panel 22, and another part is used for accommodating this optical diaphragm group 24, LGP 26, light source 27 and reflector plate 28.
The light in part 261 of this LGP 26 comprises sequentially the first joint face 265 of connecting, the 3rd joint face 267, and the second joint face (indicating).Wherein, these the first joint face 265 1 ends are connected with the 3rd joint face 267, and the relative other end is connected with this bottom surface 263, and this second joint face one end is connected with the 3rd joint face 267, and the relative other end is connected with this bright dipping zone 262.This first joint face 265 is recessed into these LGP 26 inboards to form a receiving space (indicating) with the shape that the 3rd joint face 267 forms, and is used for accommodating this light source 27.In the present embodiment, this bright dipping zone 262, the 3rd joint face 267 are parallel with bottom surface 263 threes, these the first joint face 265 vertical bright dipping zones 262.This second joint face comprises first 266, second portion 268 and third part 269.This first 266 is connected with the 3rd joint face 267, and parallel with this first joint face 265, and an end of this second portion 268 tilts to be connected with this first 266, and the relative other end tilts to be connected with this third part 269.This third part 269 and bright dipping zone 262 be with the end faces of being located at this LGP 26, coplanar setting, and an end is connected with second portion 268, and the relative other end is connected with bright dipping regional 262.
This light source 27 comprises circuit board 271 and is arranged at least two spot lights 272 on this circuit board 271, and every bit light source 272 has a light-emitting area 273.The setting party of the light-emitting area 273 of a plurality of these at least two spot lights 272 is to identical.In the present embodiment, these a plurality of spot lights 272 are light emitting diode, and the light-emitting area 273 of this light emitting diode is the link position of this light emitting diode and this circuit board 271 dorsad all.
This reflector plate 28 comprises a base plate 283 and a kink 281, and an end of this kink 281 is arranged at the edge of this base plate 283, and the other end is free end, and this kink 281 forms a receiving space 280 with this base plate 283 and is used for accommodating this light source 27.This kink 281 can and be bent to form from this base plate 283 1 sides extension.In the present embodiment, this kink 281 comprises the first bent sheet 286, the second bent sheet 288 and the 3rd bent sheet 282 that sequentially links to each other.These the first bent sheet 286 1 ends link to each other with this second bent sheet 288, and the opposite end links to each other with this base plate 283, and this first bent sheet can be attached at the first 266 of this LGP 26.The second bent sheet 288 1 ends connect the first bent sheet 286, and the opposite end links to each other with the 3rd bent sheet 282, and the second bent sheet 288 covers this second portion 268.The 3rd bent sheet 282 1 ends link to each other with this second bent sheet 288, and the opposite end is free end, and the 3rd bent sheet 282 covers third part 269.Preferably, these the first bent sheet 286 vertical these base plate 283, the three bent sheet 282 parallel these base plates 283.Wherein, this second bent sheet 288 and junction this first bent sheet 286 are to the distance of this base plate 283, the i.e. height of the width of this first bent sheet 286 and the first joint face 265 and first 266 and basic identical.The 3rd bent sheet 282 and junction this second bent sheet 288 are to the distance of this first bent sheet 286, and namely the width of this second bent sheet 288 is corresponding with the width of this second portion 268, is identical in the present embodiment.The 3rd bent sheet 282 and the second bent sheet 288 be in the width of the projection of this base plate 283 with greater than the width of the 3rd joint face 267 in these base plate 283 correspondence position projections, namely in the present embodiment the first joint face 265 to the distance of this first 266.
During assembling, see also Fig. 4-Fig. 5, this light source 27 is arranged at close these kink 281 1 sides of the base plate 283 of this reflector plate 28, and is contained in simultaneously in the receiving space of this LGP 16.The bottom surface 263 1 side settings of these base plate 283 contiguous these LGPs 26.Wherein, the light-emitting area 273 of light source 27 is over against the 3rd joint face 267.The first bent sheet 286 of this kink 281, base plate 283 and the 3rd joint face 267 and this first joint face 265 common these light sources 27 that surround.This second bent sheet 288 is attached on this second portion 268, and the 3rd bent sheet 282 covers third part 269.This optical diaphragm group 24 is arranged at bright dipping zone 262 1 sides of this LGP 26, and the edge of this kink 281 of edges cover.This glue frame 25 is accommodated this light source 27, this LGP 26, this optical diaphragm group 24 and this reflector plate 28.This bright dipping zone 262 is over against the exiting surface setting of this backlight module 23.This liquid crystal panel 22 is arranged at these optical diaphragm group 24 1 sides and is carried by the gripper shoe 252 of this glue frame 22.
The wide part that this light source 27 sends enters this LGP 26 via the 3rd joint face 267, and this kink 281 of directive.The part of the attaching first 266 of the first bent sheet 286, the second bent sheet 288 and the 3rd bent sheet 282 are inboard with the main body that light reflexes to LGP 26, via the reflection of the propagation of this LGP 26 and reflector plate 28 base plates 283 by being penetrated by this bright dipping zone 262.Said structure is in the big or small impregnable situation in the bright dipping zone 262 that guarantees LGP 26, the setting party of the light-emitting area 273 by changing spot light 272 to and the set-up mode of the 3rd joint face 267 of LGP 26 prolong the mixed light path of spot light 272, make light be mixed fully at the 3rd joint face 267 and kink 281 positions, when entering into the main body of this LGP 26 after fully mixed light under the propagation of LGP 26 inside to via these bright dipping zone 262 outgoing, then observe this LGP 26 in bright dipping zone 262 sides, obvious bright dark fringe can not occur in the position near this light in part 261.Then the bright dipping of this LGP 26 is comparatively even.
Further, because this light source 27 is arranged on the base plate 283 of this reflector plate 28, this kink 281 surrounds this light source 27, and this reflector plate 28 has played the effect of light source reflecting housing simultaneously.In addition, this optical diaphragm group 24 is arranged at bright dipping zone 262 1 sides of this LGP 26, and the edge of this kink 281 of edges cover can prevent that light from directly not penetrating backlight module 23 through the mixed light of this optical diaphragm group 24 and the inhomogeneous situation of bright dipping of this backlight module 23 of causing occurs.
Seeing also Fig. 6, is the generalized section after the subelement assembling of liquid crystal indicator the second embodiment of the present invention.The difference of present embodiment and the first embodiment is: the second bent sheet 388 of kink 381 is cambered surface, and the center of circle at this cambered surface place is in the space that the first bent sheet 386 and the 3rd bent sheet 382 surround.The connection third part 369 of LGP 36 is cambered surface with the second portion 368 of first 366.Preferably, this second portion 368 is identical with radian and the bending direction of the second bent sheet 388, makes backlight module 33 when assembling, and this second bent sheet 388 can be attached on this second portion 368, and the light-emitting area 373 of spot light 372 is towards the 3rd joint face 367.
Seeing also Fig. 7, is the generalized section of the backlight module of liquid crystal indicator the 3rd embodiment of the present invention.The difference of the 3rd embodiment and the second embodiment is: this catoptric arrangement is arranged on the glue frame 45.Particularly, this glue frame 45 in accommodating optical diaphragm group 44, LGP 46, light source 47 and reflector plate 48 spaces sidewall 451 and gripper shoe 452 towards these optical diaphragm group 44 1 sides reflectorized material is set all, perhaps above-mentioned position itself is formed by reflectorized material, such as the white size frame.And then can replace the kink of reflector plate 48.Be appreciated that ground, when assembling with this light source 47 for this glue frame 45, package assembly is compacter, and kink has the first bent sheet 486, and this first bent sheet 486 cooperates the light leak that can effectively prevent between this light source 47 and this glue frame 45 with this glue frame 45.Further, this sidewall 451 has the shape corresponding with the second portion 468 of this LGP 46, first 466, can fit better with this LGP 46 when the assembling, makes backlight module 43 assemble more tight.Simultaneously, this gripper shoe 452 is overlapped on this optical diaphragm group 44, can prevent the light leak between sidewall 451 and this optical diaphragm group 44, has further improved the utilization rate of light.
Claims (9)
1. backlight module, it comprises at least two Dian Guang Yuan ﹑ exiting surfaces, LGP and catoptric arrangement in the light path between this at least two spot light and exiting surface, each this at least two spot light has a light-emitting area, this at least two spot light be set up in parallel and the light-emitting area setting party to identical, this LGP comprises end face, this end face comprises the bright dipping zone over against this backlight module exiting surface, this LGP also comprises the bottom surface that is oppositely arranged with this bright dipping zone and is connected the light in part of this bright dipping zone and this bottom surface, it is characterized in that: this light in part comprises the first joint face, the second joint face and the 3rd joint face, the first joint face and the second joint face lay respectively at the both sides of the 3rd joint face, the light that the 3rd joint face sends to receive at least two spot lights over against the light-emitting area of two spot lights at least, one end of this first joint face is connected with the 3rd joint face, a relative end links to each other with this bottom surface, one end of this second joint face is connected with the 3rd joint face, a relative end links to each other with this bright dipping zone, this second joint face and the 3rd joint face of contiguous this bright dipping zone one side are oppositely arranged, the inboard receiving space that forms of recessed this LGP of the shape that this first joint face and the 3rd joint face form is used for accommodating this at least two spot light, on this second joint face this catoptric arrangement is set, the light of injecting LGP via the 3rd joint face has changed travel path via the reflection of the catoptric arrangement that arranges on this second joint face, enters between the bright dipping zone and bottom surface of this LGP.
2. backlight module as claimed in claim 1, it is characterized in that: this backlight module comprises framework, this framework is accommodated this LGP, at least two spot lights, this framework comprise this catoptric arrangement towards this at least two spot lights one side, this catoptric arrangement covers this second joint face.
3. backlight module as claimed in claim 1, it is characterized in that: this framework is hollow frame, it comprises a plurality of sidewalls and the gripper shoe of extending to this frame center from this inside sidewalls, this gripper shoe forms receiving space with the sidewall that is positioned at this gripper shoe the same side, be used for accommodating this LGP and at least two spot lights, this backlight module also comprises optical diaphragm group, and this optical diaphragm group is arranged at bright dipping zone one side of this LGP, and this gripper shoe is overlapped in the edge of this optical diaphragm group.
4. such as claim 1,2, the described backlight module of any one in 3, it is characterized in that: this catoptric arrangement comprises reflector plate, this reflector plate comprises base plate and kink, this at least two spot light is arranged on this base plate, this kink surrounds this at least two spot light, this second joint face comprises the first that sequentially connects, second portion and third part, this first is connected with the 3rd joint face, and parallel with this first joint face, one end of this second portion is connected with this first, the relative other end is connected with this third part, the bright dipping coplanar setting in zone of this third part and this LGP, the first end of this kink is connected with this bottom edge, the second relative end is the third part that free end is overlapped in this LGP, the corresponding projector distance of long the 3rd joint face of the projector distance of the second end of this kink to first end in this base plate.
5. backlight module as claimed in claim 4, it is characterized in that: this backlight module also comprises this optical diaphragm group, and this optical diaphragm group is arranged at this LGP bright dipping zone one side, and the overlapping edges of this optical diaphragm group is in the second end of this kink.
6. backlight module as claimed in claim 5, it is characterized in that: this LGP bright dipping is regional, the 3rd joint face is parallel with the bottom surface three, and vertical with this first joint face, this second portion is tapered plane, this kink comprises the first bent sheet, the second bent sheet and the 3rd bent sheet, this second bent sheet is attached on this second portion, and the 3rd bent sheet covers this third part.
7. backlight module as claimed in claim 6, it is characterized in that: this second bent sheet is cambered surface, and the center of circle at this cambered surface place is in the space that the first bent sheet and the 3rd bent sheet surround, and this second portion is corresponding with this second kink shape.
8. backlight module as claimed in claim 1, it is characterized in that: this at least two spot light is arranged on the circuit board, and this circuit board is this at least two spot lights power supply.
9. liquid crystal indicator, the backlight module that it comprises a liquid crystal panel and adjacent this liquid crystal panel and light source is provided for this liquid crystal panel is characterized in that: this backlight module is the described backlight module of arbitrary claim in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210097268 CN103363388A (en) | 2012-04-05 | 2012-04-05 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210097268 CN103363388A (en) | 2012-04-05 | 2012-04-05 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363388A true CN103363388A (en) | 2013-10-23 |
Family
ID=49365346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210097268 Pending CN103363388A (en) | 2012-04-05 | 2012-04-05 | Backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103363388A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179981A (en) * | 2015-10-19 | 2015-12-23 | 合肥京东方显示光源有限公司 | Light guide plate, backboard, lateral backlight module and display device |
| CN105372865A (en) * | 2015-11-17 | 2016-03-02 | 武汉华星光电技术有限公司 | Reflection sheet, backlight module set applying same and display screen |
| CN107422413A (en) * | 2017-08-04 | 2017-12-01 | 深圳市宇顺电子股份有限公司 | A kind of light guide plate fastener |
-
2012
- 2012-04-05 CN CN 201210097268 patent/CN103363388A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179981A (en) * | 2015-10-19 | 2015-12-23 | 合肥京东方显示光源有限公司 | Light guide plate, backboard, lateral backlight module and display device |
| US10139544B2 (en) | 2015-10-19 | 2018-11-27 | Boe Technology Group Co., Ltd. | Light guide plate, back plate, edge-lit type backlight module and display device |
| CN105372865A (en) * | 2015-11-17 | 2016-03-02 | 武汉华星光电技术有限公司 | Reflection sheet, backlight module set applying same and display screen |
| CN107422413A (en) * | 2017-08-04 | 2017-12-01 | 深圳市宇顺电子股份有限公司 | A kind of light guide plate fastener |
| CN107422413B (en) * | 2017-08-04 | 2020-01-10 | 深圳市宇顺电子股份有限公司 | Light guide plate fastener |
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Application publication date: 20131023 |