CN204515305U - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN204515305U CN204515305U CN201520192498.6U CN201520192498U CN204515305U CN 204515305 U CN204515305 U CN 204515305U CN 201520192498 U CN201520192498 U CN 201520192498U CN 204515305 U CN204515305 U CN 204515305U
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- China
- Prior art keywords
- card ear
- backlight
- draw
- groove
- brightening piece
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Abstract
The utility model discloses a kind of backlight module, comprise: chase, glue frame, light guide plate, backlight, diffusion sheet and lower brightening piece, described lower brightening piece is provided with first and second card ear away from backlight source, described diffusion sheet is provided with the 3rd and the 4th card ear away from backlight source, empty avoiding process is done in the position of the corresponding described first to fourth card ear of described glue frame, to form first and second draw-in groove, after assembling, described first and the 3rd card ear be sticked in described first draw-in groove, described second and the 4th card ear be sticked in described second draw-in groove.The utility model is by setting up card ear structure at lower brightening piece and diffusion sheet away from socket end, accordingly, glue frame is provided with draw-in groove to engage card ear, therefore, doing under drop test, optical film material blocks on glue frame from four direction up and down, can not cause various bright line because of displacement up and down and left and right sidesing shifting, thus reduce caused by drop test optical film material displacement cause bad, improving product quality.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly relates to a kind of backlight module.
Background technology
Along with the development of liquid crystal display industry, liquid crystal display, liquid crystal display module are used widely in mobile phone products.But because liquid crystal itself is not luminous, see the splendid colorful picture that LCDs presents to allow user, LCDs generally all must and light source with the use of.Due to the characteristic of liquid crystal, this light source is generally placed in the back of LCDs, is referred to as backlight module in industry.The Main Function of LCD backlight module is to provide a planar light source that is uniform, stable, that have certain brightness, the core light source of its internal light source is generally light emitting diode (LED), and the uneven pointolite sent by LED light source through light guide plate and diffusion sheet is converted to uniform area source.
Existing backlight module is on the market shifted by two kinds of methods realizations to prevent optical film material: one is add anti-displacement card ear on the optical film material near socket end; Two is that anti-displacement card ear is not located on optical film material, and is provided on the glue frame near socket.Optical film material adds anti-displacement card ear near socket end place, after the backlight module having this kind of structure is assembled into liquid crystal display module, when doing system test to customers' place, crosses completely and falls, and can there is optical film material displacement and cause bad risk.And not adding anti-displacement card ear at optical film material socket end, anti-displacement card ear is added in the structure on glue frame, be limited to the structure of backlight module, is generally do not do selection.
Therefore, prior art existing defects, needs to improve.
Utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of backlight module.
The technical solution of the utility model is as follows: the utility model provides a kind of backlight module, comprise: chase, the glue frame mutually chimeric with described chase, be located at the light guide plate in described chase, to be located in described chase and to be positioned at the backlight of described light guide plate side, to be located in described chase and the diffusion sheet be positioned in described light guide plate and be located at described chase and be positioned at the lower brightening piece on described diffusion sheet, described lower brightening piece is provided with first and second card ear away from backlight source, described diffusion sheet is provided with the 3rd and the 4th card ear away from backlight source, empty avoiding process is done in the position of the corresponding described first to fourth card ear of described glue frame, to form first and second draw-in groove, after assembling, described first and the 3rd card ear be sticked in described first draw-in groove, described second and the 4th card ear be sticked in described second draw-in groove.
Described chase and described glue frame integrated setting.
Described lower brightening piece is also provided with the 5th and the 6th card ear near backlight source.
Corresponding described 5th and the 6th card ear of described glue frame is provided with the 3rd and the 4th draw-in groove, and described 5th card ear is sticked in described 3rd draw-in groove, and described 6th card ear is sticked in described 4th draw-in groove.
Described lower brightening piece has first to fourth side, described backlight is located at described lower brightening piece first side place, described first card ear comprises the first fixture block be formed on second side and the second fixture block be formed on described 3rd side, and described second card ear comprises the 3rd fixture block be formed on the 3rd side and the 4th fixture block be formed on described four side.
Described diffusion sheet has the 5th to the 8th side, described backlight is located at described diffusion sheet the 5th side edge, described 3rd card ear comprises the 5th fixture block be formed on the 6th side and the 6th fixture block be formed on described heptalateral limit, and described 4th card ear comprises the 7th fixture block be formed on heptalateral limit and the 8th fixture block be formed on described 8th side.
First and second card ear described and described brightening piece one-body molded, the described 3rd and the 4th card ear and described diffusion sheet one-body molded.
Described backlight module also comprises: be located at the reflector plate between described chase and light guide plate and be located at the upper brightening piece on lower brightening piece.
Described backlight is linear LED lamp bar.
Adopt such scheme, backlight module of the present utility model, by setting up card ear structure at lower brightening piece and diffusion sheet away from socket end, accordingly, glue frame is provided with draw-in groove to engage card ear, therefore, doing under drop test, optical film material blocks on glue frame from four direction up and down, can not cause various bright line because of displacement up and down and left and right sidesing shifting, thus reduce caused by drop test optical film material displacement cause bad, improving product quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model backlight module.
Fig. 2 is the side view of glue frame in the utility model.
Fig. 3 is the enlarged drawing at A place in Fig. 2.
Fig. 4 is the structural representation of lower brightening piece in the utility model.
Fig. 5 is the structural representation of diffusion sheet in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Refer to Fig. 1 to Fig. 5, the utility model provides a kind of backlight module, comprising: chase, the glue frame 20 mutually chimeric with described chase, be located at the light guide plate 12 in described chase, be located at the reflector plate between described chase and light guide plate 12, to be located in described chase and to be positioned at the backlight 14 of described light guide plate 12 side, to be located in described chase and the diffusion sheet 40 be positioned in described light guide plate 12, to be located in described chase and the lower brightening piece 30 be positioned on described diffusion sheet 40, and to be located in described chase and the upper brightening piece be positioned on described lower brightening piece 30, described lower brightening piece 30 is provided with first and second card ear 41 away from backlight 12 end, 45, described diffusion sheet 50 is provided with the 3rd and the 4th card ear 61 away from backlight 12 end, 65, the corresponding described first to fourth card ear 41 of described glue frame 20, 45, 61, empty avoiding process is done in the position of 65, to form the first draw-in groove and the second draw-in groove 22, after assembling, and described first and the 3rd card ear 41, 61 are sticked in described first draw-in groove, and described second and the 4th card ear 45, 65 are sticked in described second draw-in groove 22.The utility model fixes optical film material (lower brightening piece 30, diffusion barrier 50) by these card ear structures with coordinating of glue frame 20, fully can suppress the displacement of optical film material, thus the drop test that can solve well due to mobile phone cause optical film material that displacement occurs and cause bad, improving product quality.
Further, described lower brightening piece 30 also maintains design of the prior art, namely brightening piece is descended also to be provided with the 5th and the 6th card ear 48,49 near backlight source, namely four of brightening piece 30 corners are descended all to be provided with card ear structure, so just lower brightening piece 30 can be blocked on glue frame 20 from four direction up and down, fixing more firm.
Concrete, described lower brightening piece 30 has first to fourth side 31,32,33,34, described backlight 14 is located at described lower brightening piece 30 first side 31 place, described first card ear 41 comprises the first fixture block 42 be formed on second side 32 and the second fixture block 43 be formed on described 3rd side 33, and first and second fixture block 42,43 preferably links together; Described second card ear 45 comprises the 3rd fixture block 46 be formed on the 3rd side 33 and the 4th fixture block 47 be formed on described four side 34,3rd and the 4th fixture block 46,47 preferably links together, and namely first and second card ear 41,45 is located at two angles place of lower brightening piece 30 respectively.Described diffusion sheet 50 has the 5th to the 8th side 51,52,53,54, described backlight 14 is located at described diffusion sheet 50 the 5th side 51 place, described 3rd card ear 61 comprises the 5th fixture block 62 be formed on the 6th side 52 and the 6th fixture block 63 be formed on described heptalateral limit 53, and the 5th and the 6th fixture block 62,63 preferably links together; Described 4th card ear 65 comprises the 7th fixture block 66 be formed on heptalateral limit 53 and the 8th fixture block 67 be formed on described 8th side 54,7th and the 8th fixture block 66,67 preferably links together, and namely the 3rd and the 4th card ear 61,65 is located at two angles place of diffusion sheet 50 respectively.
First and second card ear 41,45 described and described brightening piece 30 one-body molded, namely first and second card ear 41,45 described can be stretched by lower brightening piece 30 edge and be formed; Described 3rd and the 4th card ear 61,65 and described diffusion sheet 50 one-body molded, namely the described 3rd and the 4th card ear 61,65 can be stretched by diffusion sheet 50 edge and be formed.
Described chase and described glue frame 20 integrated setting.Described backlight 14 is linear LED lamp bar, specifically comprises pcb board and is welded in several LED on described pcb board.
As alternative: corresponding described 5th and the 6th card ear of described glue frame is provided with the 3rd and the 4th draw-in groove, and described 5th card ear is sticked in described 3rd draw-in groove, and described 6th card ear is sticked in described 4th draw-in groove, such structure, fixing more firm.In sum, the utility model provides a kind of backlight module, by setting up card ear structure at lower brightening piece and diffusion sheet away from socket end, accordingly, glue frame is provided with draw-in groove to engage card ear, therefore, doing under drop test, optical film material blocks on glue frame from four direction up and down, can not cause various bright line because of displacement up and down and left and right sidesing shifting, thus reduce caused by drop test optical film material displacement cause bad, improving product quality.
These are only preferred embodiment of the present utility model, be not limited to the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a backlight module, it is characterized in that, comprise: chase, the glue frame mutually chimeric with described chase, be located at the light guide plate in described chase, to be located in described chase and to be positioned at the backlight of described light guide plate side, to be located in described chase and the diffusion sheet be positioned in described light guide plate and be located at described chase and be positioned at the lower brightening piece on described diffusion sheet, described lower brightening piece is provided with first and second card ear away from backlight source, described diffusion sheet is provided with the 3rd and the 4th card ear away from backlight source, empty avoiding process is done in the position of the corresponding described first to fourth card ear of described glue frame, to form first and second draw-in groove, after assembling, described first and the 3rd card ear be sticked in described first draw-in groove, described second and the 4th card ear be sticked in described second draw-in groove.
2. backlight module according to claim 1, is characterized in that, described chase and described glue frame integrated setting.
3. backlight module according to claim 1, is characterized in that, described lower brightening piece is also provided with the 5th and the 6th card ear near backlight source.
4. backlight module according to claim 3, is characterized in that, corresponding described 5th and the 6th card ear of described glue frame is provided with the 3rd and the 4th draw-in groove, and described 5th card ear is sticked in described 3rd draw-in groove, and described 6th card ear is sticked in described 4th draw-in groove.
5. backlight module according to claim 1, it is characterized in that, described lower brightening piece has first to fourth side, described backlight is located at described lower brightening piece first side place, described first card ear comprises the first fixture block be formed on second side and the second fixture block be formed on described 3rd side, and described second card ear comprises the 3rd fixture block be formed on the 3rd side and the 4th fixture block be formed on described four side.
6. backlight module according to claim 1, it is characterized in that, described diffusion sheet has the 5th to the 8th side, described backlight is located at described diffusion sheet the 5th side edge, described 3rd card ear comprises the 5th fixture block be formed on the 6th side and the 6th fixture block be formed on described heptalateral limit, and described 4th card ear comprises the 7th fixture block be formed on heptalateral limit and the 8th fixture block be formed on described 8th side.
7. backlight module according to claim 1, is characterized in that, first and second card ear described and described brightening piece one-body molded, the described 3rd and the 4th card ear and described diffusion sheet one-body molded.
8. backlight module according to claim 1, is characterized in that, also comprises: be located at the reflector plate between described chase and light guide plate and be located at the upper brightening piece on lower brightening piece.
9. backlight module according to claim 1, is characterized in that, described backlight is linear LED lamp bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192498.6U CN204515305U (en) | 2015-04-01 | 2015-04-01 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192498.6U CN204515305U (en) | 2015-04-01 | 2015-04-01 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204515305U true CN204515305U (en) | 2015-07-29 |
Family
ID=53713259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520192498.6U Active CN204515305U (en) | 2015-04-01 | 2015-04-01 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204515305U (en) |
-
2015
- 2015-04-01 CN CN201520192498.6U patent/CN204515305U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |