CN201836814U - Two-in-one light guide plate with diffusion function and backlight module employing same - Google Patents
Two-in-one light guide plate with diffusion function and backlight module employing same Download PDFInfo
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- CN201836814U CN201836814U CN2010202919060U CN201020291906U CN201836814U CN 201836814 U CN201836814 U CN 201836814U CN 2010202919060 U CN2010202919060 U CN 2010202919060U CN 201020291906 U CN201020291906 U CN 201020291906U CN 201836814 U CN201836814 U CN 201836814U
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Abstract
本实用新型公开一种具有扩散功能的二合一导光板，包括一入光面(1)、出光面(2)和导光面(3)，所述导光面(3)设置有导光点(31)，其特征在于：所述导光板的出光面(2)设置有光学方向不同的凹凸的扩散网格(21)。本实用新型还公开了一种具有上述导光板的背光模组。本实用新型导光板可用于液晶显示屏的背光模组、照明、装饰照明、出路牌、导向灯、广告灯箱等。
The utility model discloses a two-in-one light guide plate with a diffusion function, which comprises a light incident surface (1), a light exit surface (2) and a light guide surface (3), and the light guide surface (3) is provided with a light guide Point (31), characterized in that: the light-emitting surface (2) of the light guide plate is provided with concave-convex diffusion grids (21) with different optical directions. The utility model also discloses a backlight module with the above-mentioned light guide plate. The light guide plate of the utility model can be used for backlight modules of liquid crystal display screens, lighting, decorative lighting, exit signs, guide lights, advertising light boxes, and the like.
Description
Technical field
The utility model relates to LGP and module backlight, especially relates to two-in-one light conducting plate and module backlight thereof with diffusion function.
Background technology
A vitals of available liquid crystal display screen is a module backlight, and it mainly comprises light source, LGP, reflector plate, diffusion sheet, bright enhancement film, light polarizing film etc.Wherein, the side light type backlight die set light source is positioned at the side of LGP, and light source comprises fluorescent lamp, CCFL, LED etc.Reflector plate is positioned at the bottom of LGP, is mainly used in the light reflected back LGP of will escape away from the bottom of LGP.Diffusion sheet is positioned at the top of LGP, and it is mainly used in disperses the light that penetrates from the LGP exiting surface, makes the light that incides liquid crystal panel more even.LGP then is provided with some leaded lights site or other light guide structures in the bottom surface of LGP, it utilizes the total reflection principle of light, the light that the conduction light source is injected, and utilize the leaded light site of bottom surface or other light guide structures that the photoconduction reflection is caused the even bright dipping of LGP exiting surface.
But there is following shortcoming in prior art:
1, when the reflector plate of light bottom LGP reflexes to the exiting surface diffuser plate, owing to diffuser plate (sheet) is not close to LGP and is caused part light directly to be mapped to diffuser plate can't to enter the surperficial bright dipping of LGP with the LGP intermediate layer, cause light loss easily and sandwich moisture easily and form light point and need reprocess, reduce light extraction efficiency, increase operation and reprocess cost.
2, because LGP exiting surface smooth surface relatively is easy to generate static.
3, because LGP has warping phenomenon, the combination of diffuser plate and LGP easily causes the optically-coupled phenomenon.
The utility model content
The utility model for solve prior art LGP light extraction efficiency low, easily produce the problem of optically-coupled phenomenon with diffuser plate combination, a kind of two-in-one light conducting plate and module backlight thereof with diffusion function is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is a kind of two-in-one light conducting plate with diffusion function of design, comprise an incidence surface, exiting surface and light guiding surface, described light guiding surface is provided with the leaded light point, and the exiting surface of described LGP is provided with the different concavo-convex diffusion grid of optical direction.
Described diffusion grid is the outstanding water caltrop and the combination of cambered surface.
The utility model also provides a kind of module backlight, comprise light source, LGP and reflector plate, bright enhancement film, light polarizing film etc., described LGP comprises an incidence surface, exiting surface and light guiding surface, described light guiding surface is provided with the leaded light point, and the exiting surface of described LGP is provided with the different concavo-convex diffusion grid of optical direction.
Described diffusion grid is the outstanding water caltrop and the combination of cambered surface.
The two-in-one light conducting plate that the utlity model has diffusion function is provided with concavo-convex diffusion grid by the exiting surface at LGP, the function of conventional diffusion plate is integrated on the LGP, make LGP have the diffusion function of adding lustre to, can increase the brightness and the light uniformity, eliminate the optically-coupled phenomenon, and save the material cost and the assembling processing cost of diffuser plate, reduce light loss, thereby increase the LGP light extraction efficiency, energy-conserving and environment-protective, reduce cost, increase work efficiency.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is elaborated, wherein:
Fig. 1 is the structure principle chart of a preferred embodiment of the utility model LGP;
Fig. 2 is the structure principle chart of a preferred embodiment of the utility model module backlight.
The specific embodiment
See also Fig. 1.The two-in-one light conducting plate 6 that the utlity model has diffusion function comprises an incidence surface 1, exiting surface 2 and light guiding surface 3, and light guiding surface 3 is provided with leaded light point 31, and leaded light point 31 is injected light source by incidence surface 1 photoconduction causes exiting surface 2 bright dippings.The exiting surface 2 of LGP is provided with the different concavo-convex diffusion grid 21 of optical direction, disperses with the light face that exiting surface is penetrated and comes, and makes the light that incides liquid crystal panel more even.In this specific embodiment, described diffusion grid is the combination of outstanding water caltrop (waiting can be that different angles are formed) with cambered surface.
The preparation method of LGP is as follows: when producing leaded light raw material (optical materials such as PMMA or PC) plate, press (die casting or cast) tiny optics different directions water caltrop (similar frosted) and cambered surface at plate surface, form different concavo-convex latticed of optical direction, simultaneously stamping the leaded light point in addition, certainly, described leaded light point also can adopt the method for other moulding, comprises that the mode and the diffusion into the surface of ejaculation, extrusion (extruding), hot pressing integrally combines.
Please in the lump referring to Fig. 2, the invention also discloses a kind of module backlight, this module backlight comprises light source 5, LGP 6 and reflector plate 7.Light source is positioned at the side of LGP, and light source comprises fluorescent lamp, CCFL, LED etc.Reflector plate is positioned at the bottom of LGP, is mainly used in the light reflected back LGP of will escape away from the bottom of LGP.Described LGP 6 comprises an incidence surface 1, exiting surface 2 and light guiding surface 3, and light guiding surface 3 is provided with leaded light point 31, and leaded light point 31 is injected light source by incidence surface 1 photoconduction causes exiting surface 2 bright dippings.The exiting surface 2 of LGP is provided with the different concavo-convex diffusion grid 21 of optical direction, disperses with the light face that exiting surface is penetrated and comes, and makes the light that incides liquid crystal panel more even.In this specific embodiment, described diffusion grid is the combination of outstanding water caltrop (waiting can be that different angles are formed) with cambered surface.
The two-in-one light conducting plate and the module backlight thereof that the utlity model has diffusion function are provided with concavo-convex diffusion grid by the exiting surface at LGP, the function of conventional diffusion plate is integrated on the LGP, make LGP have the diffusion function of adding lustre to, can increase the brightness and the light uniformity, eliminate the optically-coupled phenomenon, and save the material cost and the assembling processing cost of diffuser plate, reduce light loss, thereby increase the LGP light extraction efficiency, energy-conserving and environment-protective, reduce cost, increase work efficiency.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202919060U CN201836814U (en) | 2010-08-13 | 2010-08-13 | Two-in-one light guide plate with diffusion function and backlight module employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202919060U CN201836814U (en) | 2010-08-13 | 2010-08-13 | Two-in-one light guide plate with diffusion function and backlight module employing same |
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| CN201836814U true CN201836814U (en) | 2011-05-18 |
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| CN2010202919060U Expired - Fee Related CN201836814U (en) | 2010-08-13 | 2010-08-13 | Two-in-one light guide plate with diffusion function and backlight module employing same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402907A (en) * | 2011-12-05 | 2012-04-04 | 广东威创视讯科技股份有限公司 | Device for improving display effect of light-emitting diode (LED) display screen |
| CN102588803A (en) * | 2012-03-14 | 2012-07-18 | 昆山市诚泰电气股份有限公司 | Plate type LED lamp |
| CN102606926A (en) * | 2012-03-14 | 2012-07-25 | 昆山市诚泰电气股份有限公司 | Panel LED (light emitting diode) lamp |
| CN105137652A (en) * | 2015-07-20 | 2015-12-09 | 京东方科技集团股份有限公司 | Diffuser plate, backlight module, and display device |
| CN105445844A (en) * | 2014-09-02 | 2016-03-30 | 深圳Tcl新技术有限公司 | Light guide plate, manufacturing method of same, and backlight module |
| CN106405726A (en) * | 2016-12-13 | 2017-02-15 | 四川长虹电器股份有限公司 | Micro/nano-imprinting TV display module light guide plate and manufacturing method thereof |
| CN108761917A (en) * | 2018-06-19 | 2018-11-06 | 南通伟越电器有限公司 | Television set |
-
2010
- 2010-08-13 CN CN2010202919060U patent/CN201836814U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402907A (en) * | 2011-12-05 | 2012-04-04 | 广东威创视讯科技股份有限公司 | Device for improving display effect of light-emitting diode (LED) display screen |
| CN102402907B (en) * | 2011-12-05 | 2013-08-21 | 广东威创视讯科技股份有限公司 | Device for improving display effect of light-emitting diode (LED) display screen |
| CN102588803A (en) * | 2012-03-14 | 2012-07-18 | 昆山市诚泰电气股份有限公司 | Plate type LED lamp |
| CN102606926A (en) * | 2012-03-14 | 2012-07-25 | 昆山市诚泰电气股份有限公司 | Panel LED (light emitting diode) lamp |
| CN105445844A (en) * | 2014-09-02 | 2016-03-30 | 深圳Tcl新技术有限公司 | Light guide plate, manufacturing method of same, and backlight module |
| CN105137652A (en) * | 2015-07-20 | 2015-12-09 | 京东方科技集团股份有限公司 | Diffuser plate, backlight module, and display device |
| CN106405726A (en) * | 2016-12-13 | 2017-02-15 | 四川长虹电器股份有限公司 | Micro/nano-imprinting TV display module light guide plate and manufacturing method thereof |
| CN108761917A (en) * | 2018-06-19 | 2018-11-06 | 南通伟越电器有限公司 | Television set |
| CN108761917B (en) * | 2018-06-19 | 2021-05-25 | 南通伟越电器有限公司 | Television receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 3 lanpuyuan industrial area Longgang street Longgang Road community Baolong Baolong four district of Shenzhen City, Guangdong province 518000 No. 1 building A601 Patentee after: Shenzhen onwing Au Optronics Co Address before: 518000, four floor, five Asia Industrial Park, Bantian, Longgang District, Guangdong, Shenzhen Patentee before: Shenzhen Onwing Optoelectronics Products Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190611 Address after: 511400 No. 123, 3rd floor, 88 Qinghe Middle Road, Shiqiaojie, Panyu District, Guangzhou, Guangdong Province Patentee after: Yuanbangjin Science and Technology Research Center (Guangzhou) Co., Ltd. Address before: 518000 Workshop A601, No. 1, Lampuyuan Industrial Plant, No. 3 Baolong Road, Baolong Community, Longgang Street, Shenzhen City, Guangdong Province Patentee before: Shenzhen onwing Au Optronics Co |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20190813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |