CN202048503U - LED (Light-Emitting Diode) backlight module diffusion board - Google Patents
LED (Light-Emitting Diode) backlight module diffusion board Download PDFInfo
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- CN202048503U CN202048503U CN2011200599202U CN201120059920U CN202048503U CN 202048503 U CN202048503 U CN 202048503U CN 2011200599202 U CN2011200599202 U CN 2011200599202U CN 201120059920 U CN201120059920 U CN 201120059920U CN 202048503 U CN202048503 U CN 202048503U
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Abstract
The utility model relates to an LED (Light-Emitting Diode) backlight module diffusion board which comprises a base material, wherein a plurality of prism structures are uniformly distributed on the upper surface of the base material, a plurality of spherical arc convex surfaces and spherical arc concave surfaces which are arranged in a staggered way are uniformly distributed on the lower surface of the substrate, the spherical arc convex surfaces transits to the spherical arc concave surfaces through circular arcs, and the cross section of each prism structure is triangular. The LED backlight module diffusion board has the advantages of higher transmittance and the haze index; wherein, in a liquid crystal display, the transmittance of an optical membrane board decides the high definition and the color vividness of the whole display, and the transmittance is increased by more than 10 percent comparing the novel diffusion board with other diffusion boards with the same haze; and in the liquid crystal display, the haze of the diffusion board (particularly the light diffusion effect) directly influences the color and the image quality of the whole liquid crystal display; but the liquid crystal display and the haze are a pair of contradictory objects, and the novel diffusion board has the best balance way for the contradictory objects.
Description
Technical field
The utility model relates to a kind of LED-backlit module group diffusing board.
Background technology
The module backlight that LCD (LED) uses plays an important role to the picture brightness and the outward appearance of LCD, the module backlight of available liquid crystal display uses various blooming pieces to make the light that module backlight comes out can high brightness, high uniformity consistency, common module backlight comprises as follows successively: anti-dazzling screen, diffusion sheet, brightness enhancement film, light-collecting piece, diffusion sheet, diffuser plate, framework, CCFL, reflector plate, postnotum, the collocation of multiple blooming piece use a lot of key factors such as determining module performance quality backlight, cost height and thickness.If use above-mentioned more blooming piece, can make the thickness of module backlight increase, light utilization efficiency also may reduce, and corresponding cost also increases.
LCD is except towards the large scale development, also wish simultaneously to take into account thin typeization, lightweight and requirement such as reduce cost, and the diffuser plate function singleness in the existing module backlight, can only be if want to improve the diffusivity of diffuser plate by increasing the thickness of diffuser plate, the weight and the thickness of module backlight had so both been increased, also increase module cost backlight, and the technology of diffuser plate in the at present common module several backlight, all can not be on the basis that guarantees module performance backlight, the thickness that reduces module backlight makes module lightening, and reducing the product cost of module again, the color of LCD nature is not bright-coloured simultaneously; The light diffusion effect of diffuser plate is poor, influences the quality of the color and the image of whole LCD.
The utility model content
The purpose of this utility model provides a kind of LED-backlit module group diffusing board, to overcome the prior art above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of LED-backlit module group diffusing board comprises base material, and the upper surface of described base material is evenly distributed with some prism structures, and the lower surface of base material is evenly distributed with the ball arc convex surface and the ball arc concave surface of some interlaced arrangement.
Pass through arc transition between adjacent ball arc convex surface and the ball arc concave surface.
The cross section of described prism structure is a triangle.
The beneficial effects of the utility model are:
1, higher light transmittance; In the LCD, the light transmittance of optical membrane plate has determined the high definition of whole display and the vividness of color, compares with other diffuser plate of same mist degree through this novel diffuser plate of test, and light transmittance has the raising above 10%;
2, higher mist degree index, in LCD, the mist degree of diffuser plate that is be the light diffusion effect of diffuser plate directly influences the quality of the color and the image of whole LCD; But light transmittance and mist degree are a pair of paradox, and this novel diffuser plate then is the best balance approach of this paradox.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of the described LED-backlit module group diffusing board of the utility model embodiment.
Among the figure:
1, base material; 2, prism structure; 3, ball arc convex surface; 4, ball arc concave surface.
The specific embodiment
As shown in Figure 1, the described LED-backlit module group diffusing board of the utility model embodiment, comprise base material 1, the upper surface of described base material 1 is evenly distributed with some prism structures 2, and the lower surface of base material 1 is evenly distributed with the ball arc convex surface 3 and the ball arc concave surface 4 of some interlaced arrangement.
Pass through arc transition between adjacent ball arc convex surface 3 and the ball arc concave surface 4.
The cross section of described prism structure 2 is a triangle.
The operation principle of the utility model diffuser plate: the utility model diffuser plate is mainly used in the LCD backlight module, be arranged between LGP and the liquid crystal panel, when diffuser plate receives the light of the light source that comes from the LGP transmission and come, the warp that light at first arrives diffuser plate accurately designs prism structure 2 surfaces of moulding, through refraction, the propagation of light such as reflection, most light source arrives the ball arc convex surface 3 and the ball arc concave surface 4 of diffuser plate bottom by diffuser plate, light is through the refraction of spherical cambered surface, scattering, thereby realize spot light is become the effect of area source, and through the prism structure 2 surperficial light that reflect partly, reflection by LGP reflection site and reflectance coating, again be transmitted to diffuser plate, pass through above communication process once more, thereby further improved the visual effect that spot light becomes area source.The utility model diffuser plate main application is that the light source, the light that transmit in the LGP and come are further spread, under the prerequisite of the generation brightness that can not reduce entire module greatly, to greatest extent the light source that transmits from LGP and come, light are realized evenly on the plane of entire display screen, thereby eliminated because defective such as the color of the inhomogeneous display that causes of transmission light source is not natural, not bright-coloured on the LGP.The utility model diffuser plate is an optical membrane plate material comparatively main in the middle of the whole LCD.
The utlity model has: 1, higher light transmittance; In the LCD, the light transmittance of optical membrane plate has determined the high definition of whole display and the vividness of color, compares with other diffuser plate of same mist degree through this novel diffuser plate of test, and light transmittance has the raising above 10%; 2, higher mist degree index, in LCD, the mist degree of diffuser plate that is be the light diffusion effect of diffuser plate directly influences the quality of the color and the image of whole LCD; But light transmittance and mist degree are a pair of paradox, and this novel diffuser plate then is the best balance approach of this paradox.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but on its shape or structure, do any variation; every have identical with a application or akin technical scheme, all drops within the protection domain of the present utility model.
Claims (3)
1. LED-backlit module group diffusing board, comprise base material (1), it is characterized in that: the upper surface of described base material (1) is evenly distributed with some prism structures (2), and the lower surface of base material (1) is evenly distributed with the ball arc convex surface (3) and the ball arc concave surface (4) of some interlaced arrangement.
2. LED-backlit module group diffusing board according to claim 1 is characterized in that: pass through arc transition between adjacent ball arc convex surface (3) and the ball arc concave surface (4).
3. LED-backlit module group diffusing board according to claim 1 and 2 is characterized in that: the cross section of described prism structure (2) is a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200599202U CN202048503U (en) | 2011-03-08 | 2011-03-08 | LED (Light-Emitting Diode) backlight module diffusion board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200599202U CN202048503U (en) | 2011-03-08 | 2011-03-08 | LED (Light-Emitting Diode) backlight module diffusion board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048503U true CN202048503U (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200599202U Expired - Fee Related CN202048503U (en) | 2011-03-08 | 2011-03-08 | LED (Light-Emitting Diode) backlight module diffusion board |
Country Status (1)
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| CN (1) | CN202048503U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032738A (en) * | 2012-12-21 | 2013-04-10 | 江苏晶和金江照明有限公司 | LED (Light-Emitting Diode) lamp and lampshade |
| CN105929601A (en) * | 2016-07-07 | 2016-09-07 | 福建正德光电科技有限公司 | Diffusion plate with dual-side lens, diffusion-free film and bright-enhancement-free film for liquid crystal display |
| CN106249483A (en) * | 2016-10-14 | 2016-12-21 | 合肥惠科金扬科技有限公司 | Backlight display modular structure and display |
| CN107271153A (en) * | 2017-07-31 | 2017-10-20 | 信利半导体有限公司 | A kind of diffusion barrier hides the method for testing of the flaw |
| CN107561779A (en) * | 2017-08-30 | 2018-01-09 | 广东深越光电技术有限公司 | A kind of liquid crystal display device for the utilization rate for increasing light |
| CN107561777A (en) * | 2017-08-30 | 2018-01-09 | 广东深越光电技术有限公司 | A kind of backlight module and its manufacturing process for being avoided that brightness unevenness |
| CN107561776A (en) * | 2017-08-30 | 2018-01-09 | 广东深越光电技术有限公司 | It is a kind of to strengthen backlight module of light efficiency and preparation method thereof |
| CN107678208A (en) * | 2017-08-30 | 2018-02-09 | 广东深越光电技术有限公司 | A kind of backlight module for the incidence surface product that can increase light guide plate |
| CN107703677A (en) * | 2017-08-30 | 2018-02-16 | 广东深越光电技术有限公司 | A kind of high integrated back light source structure of backlight precision |
| CN107728375A (en) * | 2017-08-30 | 2018-02-23 | 广东深越光电技术有限公司 | A kind of backlight module that can reduce usage quantity needed for LED |
| CN107748463A (en) * | 2017-08-30 | 2018-03-02 | 广东深越光电技术有限公司 | A kind of backlight module that can improve light utilization |
| CN107957641A (en) * | 2016-10-17 | 2018-04-24 | 群创光电股份有限公司 | Display device |
| CN108916675A (en) * | 2018-08-28 | 2018-11-30 | 华南理工大学 | A kind of side entering type plant light source of no light guide plate |
| CN110030505A (en) * | 2019-03-22 | 2019-07-19 | 厦门立达信照明有限公司 | A kind of mask lamp of light guiding lens and lampshade brightness uniformity |
| CN110164329A (en) * | 2019-03-31 | 2019-08-23 | 湖南凯星电子科技有限公司 | A kind of light diffusing sheet |
| JP2021162840A (en) * | 2020-03-30 | 2021-10-11 | 恵和株式会社 | Optical sheet, backlight unit, liquid crystal display device, and information device |
| JP2022044674A (en) * | 2020-03-30 | 2022-03-17 | 恵和株式会社 | Diffusion sheet, backlight unit, liquid crystal display unit, and information appliance |
-
2011
- 2011-03-08 CN CN2011200599202U patent/CN202048503U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032738A (en) * | 2012-12-21 | 2013-04-10 | 江苏晶和金江照明有限公司 | LED (Light-Emitting Diode) lamp and lampshade |
| CN105929601A (en) * | 2016-07-07 | 2016-09-07 | 福建正德光电科技有限公司 | Diffusion plate with dual-side lens, diffusion-free film and bright-enhancement-free film for liquid crystal display |
| CN106249483A (en) * | 2016-10-14 | 2016-12-21 | 合肥惠科金扬科技有限公司 | Backlight display modular structure and display |
| CN106249483B (en) * | 2016-10-14 | 2023-12-22 | 合肥惠科金扬科技有限公司 | Backlight display module structure and display |
| CN107957641A (en) * | 2016-10-17 | 2018-04-24 | 群创光电股份有限公司 | Display device |
| CN107271153A (en) * | 2017-07-31 | 2017-10-20 | 信利半导体有限公司 | A kind of diffusion barrier hides the method for testing of the flaw |
| CN107703677A (en) * | 2017-08-30 | 2018-02-16 | 广东深越光电技术有限公司 | A kind of high integrated back light source structure of backlight precision |
| CN107678208A (en) * | 2017-08-30 | 2018-02-09 | 广东深越光电技术有限公司 | A kind of backlight module for the incidence surface product that can increase light guide plate |
| CN107561776A (en) * | 2017-08-30 | 2018-01-09 | 广东深越光电技术有限公司 | It is a kind of to strengthen backlight module of light efficiency and preparation method thereof |
| CN107728375A (en) * | 2017-08-30 | 2018-02-23 | 广东深越光电技术有限公司 | A kind of backlight module that can reduce usage quantity needed for LED |
| CN107748463A (en) * | 2017-08-30 | 2018-03-02 | 广东深越光电技术有限公司 | A kind of backlight module that can improve light utilization |
| CN107561777A (en) * | 2017-08-30 | 2018-01-09 | 广东深越光电技术有限公司 | A kind of backlight module and its manufacturing process for being avoided that brightness unevenness |
| CN107561779A (en) * | 2017-08-30 | 2018-01-09 | 广东深越光电技术有限公司 | A kind of liquid crystal display device for the utilization rate for increasing light |
| CN108916675A (en) * | 2018-08-28 | 2018-11-30 | 华南理工大学 | A kind of side entering type plant light source of no light guide plate |
| CN110030505A (en) * | 2019-03-22 | 2019-07-19 | 厦门立达信照明有限公司 | A kind of mask lamp of light guiding lens and lampshade brightness uniformity |
| CN110164329A (en) * | 2019-03-31 | 2019-08-23 | 湖南凯星电子科技有限公司 | A kind of light diffusing sheet |
| JP2021162840A (en) * | 2020-03-30 | 2021-10-11 | 恵和株式会社 | Optical sheet, backlight unit, liquid crystal display device, and information device |
| JP7037624B2 (en) | 2020-03-30 | 2022-03-16 | 恵和株式会社 | Optical sheet, backlight unit, liquid crystal display device and information equipment |
| JP2022044674A (en) * | 2020-03-30 | 2022-03-17 | 恵和株式会社 | Diffusion sheet, backlight unit, liquid crystal display unit, and information appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG TEIDE OPTOELECTRONICS CO., LTD. Free format text: FORMER OWNER: GUANGDONG TAIDE TECHNOLOGY CO., LTD. Effective date: 20130507 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528031 FOSHAN, GUANGDONG PROVINCE TO: 528041 FOSHAN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130507 Address after: 528041, one of the 2 East of Poyang Town, Shiwan Town, Chancheng District, Guangdong, Foshan Patentee after: Guangdong Ted photoelectric Co., Ltd. Address before: 528031, Foshan, Shiwan Town, Chancheng District, Guangdong Province, Poyang North Industrial Zone, 2 East Patentee before: Guangdong Taide Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20160308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |