CN202149410U - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN202149410U CN202149410U CN201120240735U CN201120240735U CN202149410U CN 202149410 U CN202149410 U CN 202149410U CN 201120240735 U CN201120240735 U CN 201120240735U CN 201120240735 U CN201120240735 U CN 201120240735U CN 202149410 U CN202149410 U CN 202149410U
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- China
- Prior art keywords
- light
- led
- guide plate
- lgp
- incidence surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of liquid crystal display devices, in particular to a backlight module which comprises a light guide plate and an LED (light-emitting diode), wherein the light guide plate is provided with a light incoming surface; the LED is arranged beside the light incoming surface of the light guide plate; a light outgoing surface of the LED faces the light incoming surface of the light guide plate; a black shading adhesive tape is adhered onto the light guide plate behind the light incoming surface and can absorb part of the strong light emitted by the light outgoing part of the LED and reduce bright spots of backlight; and a row of micro-zigzag structures are formed on the light incoming surface of the light guide plate, so as to effectively scatter light rays emitted by the LED and remarkably reduce bright the spots of the backlight, thereby achieving better optical effect.
Description
Technical field:
The utility model relates to the liquid crystal indicator technical field, refers in particular to backlight module.
Background technology:
Backlight module is the light that wire or point source of light are produced, be converted into through LGP uniformly planar luminous, with as the required planar light source of LCD.Compared to the cathode fluorescent tube that early stage backlight module adopts, LED has tangible energy conservation characteristic, and has had enough brightness.Therefore, adopt LED also increasing as the backlight module of light source.In the existing backlight module, LED exiting surface distance is advanced light region distance less (below the 2.8mm), and light guide plate thin (below the 1mm), then can advance light zone generation bright spot, thereby influence whole structure backlight.
The utility model content:
The purpose of the utility model is exactly to the deficiency of prior art existence a kind of backlight module that reduces bright spot backlight to be provided.
To achieve these goals; The technical scheme that the utility model adopts is: backlight module; Include LGP, LED, LGP has incidence surface, and LED is arranged on by the incidence surface of LGP; The exiting surface of LED is towards the incidence surface of LGP, the position that is positioned at the incidence surface rear on the LGP black shading rubber belt that has been sticked.
The incidence surface of said LGP forms the little broached-tooth design of a row.
The sawtooth angle of said incidence surface is 60～80 degree.
The sawtooth angle of said incidence surface is 70 degree.
The width of said black shading rubber belt is 0.5～1.5mm.
The width of said black shading rubber belt is 1mm.
The utility model beneficial effect is: the backlight module that the utility model provides; Include LGP, LED, LGP has incidence surface, and LED is arranged on by the incidence surface of LGP; The exiting surface of LED is towards the incidence surface of LGP; The high light that the position that is positioned at the incidence surface rear on the LGP black shading rubber belt that has been sticked, black shading rubber belt can absorption portion LED bright dipping place penetrate reduces bright spot backlight; And the incidence surface of LGP forms the little broached-tooth design of a row, and the light that effectively disperses LED to penetrate can obviously reduce bright spot backlight, reaches optical effect preferably.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described; See shown in Figure 1; The utility model includes LGP 1, LED2, and LGP 1 has incidence surface 11, and LED2 is arranged on incidence surface 11 sides of LGP 1; The exiting surface of LED2 is towards the incidence surface 11 of LGP 1, the position that is positioned at incidence surface 11 rears on the LGP 1 black shading rubber belt 3 that has been sticked.The width of black shading rubber belt 3 is 0.5～1.5mm, and the width of black shading rubber belt 3 is 1mm in this embodiment.
The incidence surface 11 of LGP 1 forms the little broached-tooth design of a row, and the sawtooth angle of incidence surface 11 is 60～80 degree, and the sawtooth angle of incidence surface 11 is 70 degree in this embodiment, has optical effect preferably.
The high light that the black shading rubber belt 3 of the utility model can absorption portion LED2 bright dipping place penetrates reduces bright spot backlight; And the incidence surface 11 of LGP 1 forms the little broached-tooth design of a row, and the light that effectively disperses LED2 to penetrate can obviously reduce bright spot backlight, reaches optical effect preferably.
Certainly, the above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (6)
1. backlight module; Include LGP (1), LED (2); LGP (1) has incidence surface (11); It is other that LED (2) is arranged on the incidence surface (11) of LGP (1), it is characterized in that: the exiting surface of said LED (2) is towards the incidence surface (11) of LGP (1), the position that is positioned at incidence surface (11) rear on the LGP (1) the black shading rubber belt (3) that has been sticked.
2. backlight module according to claim 1 is characterized in that: the incidence surface (11) of said LGP (1) forms the little broached-tooth design of a row.
3. backlight module according to claim 2 is characterized in that: the sawtooth angle of said incidence surface (11) is 60～80 degree.
4. backlight module according to claim 3 is characterized in that: the sawtooth angle of said incidence surface (11) is 70 degree.
5. according to any described backlight module of claim 1～4, it is characterized in that: the width of said black shading rubber belt (3) is 0.5～1.5mm.
6. backlight module according to claim 5 is characterized in that: the width of said black shading rubber belt (3) is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120240735U CN202149410U (en) | 2011-07-11 | 2011-07-11 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120240735U CN202149410U (en) | 2011-07-11 | 2011-07-11 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149410U true CN202149410U (en) | 2012-02-22 |
Family
ID=45590468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120240735U Expired - Fee Related CN202149410U (en) | 2011-07-11 | 2011-07-11 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149410U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620205A (en) * | 2012-03-27 | 2012-08-01 | 深圳市华星光电技术有限公司 | Edge-lighting type backlight module and liquid crystal display comprising same |
| CN103091739A (en) * | 2012-12-20 | 2013-05-08 | 深圳市华星光电技术有限公司 | Optical membrane layer, backlight module and display device |
| WO2016176929A1 (en) * | 2015-05-05 | 2016-11-10 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
-
2011
- 2011-07-11 CN CN201120240735U patent/CN202149410U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620205A (en) * | 2012-03-27 | 2012-08-01 | 深圳市华星光电技术有限公司 | Edge-lighting type backlight module and liquid crystal display comprising same |
| CN103091739A (en) * | 2012-12-20 | 2013-05-08 | 深圳市华星光电技术有限公司 | Optical membrane layer, backlight module and display device |
| WO2016176929A1 (en) * | 2015-05-05 | 2016-11-10 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20120711 |