CN102331640A - Liquid crystal backlight display module - Google Patents
Liquid crystal backlight display module Download PDFInfo
- Publication number
- CN102331640A CN102331640A CN201110285938A CN201110285938A CN102331640A CN 102331640 A CN102331640 A CN 102331640A CN 201110285938 A CN201110285938 A CN 201110285938A CN 201110285938 A CN201110285938 A CN 201110285938A CN 102331640 A CN102331640 A CN 102331640A
- Authority
- CN
- China
- Prior art keywords
- lgp
- light
- light source
- light guide
- display screen
- 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.)
- Withdrawn
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The invention relates to a thinner liquid crystal backlight display module, which comprises a light source, a light guide plate, a brightening sheet and a display screen, wherein the brightening sheet is positioned between the front face of the light guide plate and the back face of the display screen; the front face of the brightening sheet is a face where positive light gathering strip prisms are arranged; the light source is arranged beside the light guide plate; the back face of the light guide plate is provided with a plurality of light guide points; light emitted by the light source directly reaches the light guide points or is fully reflected to the light guide points by the surface of the light guide plate, is emitted out of the front face of the light guide plate after being diffused by the light guide points, is gathered by the brightening sheet, and then is displayed on the display screen; the front face of the light guide plate is a face where positive light gathering strip prisms are arranged; and prism strips on the front face of the light guide plate serving as the positive light gathering strip prism arranging face and the prism strips on the positive light gathering strip prism arranging face of the brightening sheet are staggered away from one another. The liquid crystal backlight display module is applied to liquid crystal backlight display.
Description
Technical field
The present invention relates to LCD backlight and show module.
Background technology
LCD backlight shows module such as Fig. 1, comprises light source 1, LGP 2, following blast sheet 6, goes up blast sheet 7 and display screen 9.Following blast sheet 6 and last blast sheet 7 are between LGP 2 fronts and display screen 9 back sides, and these two blast sheets, 6,7 fronts are forward optically focused striped prism arrangement face.Light source 1 is located at LGP 2 sides; LGP 2 back sides are provided with a plurality of leaded light points 3; The light that light source 1 sends directly arrives leaded light point 3 or (comprises the front at least through LGP 2 surfaces; Can also comprise the back side) be totally reflected to leaded light point 3, from LGP 2 positive ejaculations, a plurality of leaded light points 3 have played the function that converts the light source 1 (pointolite or line source) that is located at LGP 2 sides to area source by these a plurality of leaded light points 3 diffusion backs; Make that LGP 2 is positive luminous even, behind two blast sheets, 6,7 optically focused, be presented on the display screen 9 then.Forward optically focused striped prism arrangement face prism stripe direction on these two blast sheets 6,7 intermeshes, and reaching two-dimentional light enhancing effect, for preferably, its stagger angle is 90 degree, so do not see the prism arrangement shape of blast sheet 7 from illustrating the visual angle among Fig. 1.If look from the left side of Fig. 1 or blast sheet 7 is watched at visual angle, the right side, just can see with Fig. 1 visual angle in the similar prism arrangement shape of following blast sheet 6.
Let LCD backlight show that it is a kind of general demand that module more approaches; But show in the module at above-mentioned LCD backlight; LGP 2, display screen 9 and two- layer blast sheet 6,7 are all seemingly indispensable in order to reach preferable display effect, it seems that LCD backlight shows the leeway that the thickness of module has not reduced again.
Summary of the invention
The objective of the invention is to make LCD backlight to show that module is thinner.
Provide LCD backlight for this reason and show module; Comprise light source, LGP, blast sheet and display screen; The blast sheet is between the LGP front and the display screen back side, and blast sheet front is a forward optically focused striped prism arrangement face, and light source is located at the LGP side; The LGP back side is provided with a plurality of leaded light points; The light that light source sends directly arrives leaded light point or is totally reflected to the leaded light point through the LGP surface, is penetrated from LGP is positive by this a plurality of leaded light point diffusions back, after the blast sheet is assembled, is presented on the display screen; Forward optically focused striped prism arrangement face is made in the LGP front, and the two prism stripe direction of forward optically focused striped prism arrangement face that make on forward optically focused striped prism arrangement face and the blast sheet in the LGP front intermeshes.
Because forward optically focused striped prism arrangement face is made in the LGP front; So the LGP front has just had light-focusing function; Just can need not to establish two blast sheets between the positive and display screen back side of LGP so and only need establish a blast sheet; Forward optically focused striped prism arrangement face that make in the LGP front and the forward optically focused striped prism arrangement face prism stripe direction on this part blast sheet intermesh, and just can reach to adopt two two-dimentional light enhancing effects that the blast sheet is reached.Compare with the technical scheme that adopts two blast sheets, the present invention can save wherein blast sheet, has both reduced required material, makes LCD backlight show that module is thinner again.
Description of drawings
Fig. 1 is the exploded view that existing LCD backlight shows module.
Fig. 2 is the exploded view that LCD backlight of the present invention shows module embodiment.
Fig. 3 is the stereographic map of the LGP among Fig. 2.
Fig. 4 is the optically focused schematic diagram of positive one of them the forward optically focused striped prism of LGP among Fig. 2.
Embodiment
LCD backlight shows module such as Fig. 2, comprises light source, LGP, blast sheet and display screen.Light source 1 is located at LGP 2 sides, and LGP 2 back sides are provided with a plurality of leaded light points 3, and the light that light source 1 sends directly arrives leaded light point 3 or is totally reflected to leaded light point 3 through LGP 2 surfaces, is penetrated from LGP 2 fronts by these a plurality of leaded light points 3 diffusion backs.Also be provided with the reflector plate 4 that makes from the light reflected back LGP 2 that said light source 1 sends in LGP 2 back sides outsides, help reflexing to the leaded light point 3 far away to the light that light source 1 sends apart from light source 1.Blast sheet 5 is between LGP 2 fronts and display screen 9 back sides; Blast sheet 5 fronts are forward optically focused striped prism arrangement face;. forward optically focused striped prism arrangement face is made in LGP 2 fronts; The forward optically focused striped prism arrangement face that make in LGP 2 fronts and the two prism stripe direction of forward optically focused striped prism arrangement face on the blast sheet intermesh with blast sheet 5 on forward optically focused striped prism arrangement face prism stripe direction intermesh and stagger angle be 90 the degree, reach the even light enhancing effect on the two dimension.Optically focused principle such as Fig. 4 of a forward optically focused striped prism in the forward optically focused striped prism arrangement face that make in LGP 2 fronts are assembled after the prismatic refraction of forward optically focused striped from the light that each leaded light point 3 penetrates.Between blast sheet 5 and display screen 9, also be provided with and make the evenly diffusion sheet 8 of diffusion of light.Light in the LGP 2 penetrates through LGP 2 positive gatherings again and evenly is presented on the display screen 9 after the diffusion through 5 gatherings of blast sheet and diffusion sheet 8.
Like Fig. 2,3, LGP 2 positive making in the forward optically focused striped prism arrangement face, each adjacent prisms fringe spacing d equates.Than this more preferably near the adjacent prisms fringe spacing of light source 1 greater than adjacent prisms fringe spacing away from said light source; It is providing bigger total reflection area near light source 1 place, and the light total reflection that helps sending light source 1 is to the leaded light point 3 far away apart from light source 1.
Below only be preferred embodiment of the present invention, equivalent technical solutions on this basis still falls into the invention protection domain.
Claims (5)
1. LCD backlight shows module; Comprise light source, LGP, blast sheet and display screen, the blast sheet is between the LGP front and the display screen back side, and blast sheet front is a forward optically focused striped prism arrangement face; Light source is located at the LGP side; The LGP back side is provided with a plurality of leaded light points, and the light that light source sends directly arrives leaded light point or is totally reflected to the leaded light point through the LGP surface, is penetrated from LGP is positive by this a plurality of leaded light point diffusions back;, the blast sheet is presented on the display screen after assembling; It is characterized in that forward optically focused striped prism arrangement face is made in the LGP front, the two prism stripe direction of forward optically focused striped prism arrangement face that make on forward optically focused striped prism arrangement face and the blast sheet in the LGP front intermeshes.
2. LCD backlight according to claim 1 shows module, it is characterized in that, described stagger angle is 90 degree.
3. LCD backlight according to claim 1 shows module, it is characterized in that, between said blast sheet and display screen, also is provided with to make the evenly diffusion sheet (8) of diffusion of light.
4. LCD backlight according to claim 1 shows module, it is characterized in that, also is provided with the reflector plate (4) that makes the light reflected back LGP that sends from said light source in the outside, the LGP back side.
5. LCD backlight according to claim 1 shows module, it is characterized in that, in the forward optically focused striped prism arrangement face that make in the LGP front, near the adjacent prisms fringe spacing of said light source greater than adjacent prisms fringe spacing away from said light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285938A CN102331640A (en) | 2011-09-23 | 2011-09-23 | Liquid crystal backlight display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285938A CN102331640A (en) | 2011-09-23 | 2011-09-23 | Liquid crystal backlight display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102331640A true CN102331640A (en) | 2012-01-25 |
Family
ID=45483467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110285938A Withdrawn CN102331640A (en) | 2011-09-23 | 2011-09-23 | Liquid crystal backlight display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102331640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588886A (en) * | 2012-03-14 | 2012-07-18 | 昆山市诚泰电气股份有限公司 | Reflector plate with light guiding points |
| CN104181721A (en) * | 2013-05-27 | 2014-12-03 | 乐金显示有限公司 | Display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324556Y (en) * | 1998-02-13 | 1999-06-16 | 台湾光宝电子股份有限公司 | Back light plate of light conducting plate with prism structure |
| CN101183192A (en) * | 2006-11-13 | 2008-05-21 | 嘉威光电股份有限公司 | Back light module unit |
| CN101440935A (en) * | 2007-11-20 | 2009-05-27 | 财团法人工业技术研究院 | Light guide board and illuminating device thereof |
| CN102116439A (en) * | 2010-01-05 | 2011-07-06 | 胜华科技股份有限公司 | Backlight module |
-
2011
- 2011-09-23 CN CN201110285938A patent/CN102331640A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324556Y (en) * | 1998-02-13 | 1999-06-16 | 台湾光宝电子股份有限公司 | Back light plate of light conducting plate with prism structure |
| CN101183192A (en) * | 2006-11-13 | 2008-05-21 | 嘉威光电股份有限公司 | Back light module unit |
| CN101440935A (en) * | 2007-11-20 | 2009-05-27 | 财团法人工业技术研究院 | Light guide board and illuminating device thereof |
| CN102116439A (en) * | 2010-01-05 | 2011-07-06 | 胜华科技股份有限公司 | Backlight module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588886A (en) * | 2012-03-14 | 2012-07-18 | 昆山市诚泰电气股份有限公司 | Reflector plate with light guiding points |
| CN104181721A (en) * | 2013-05-27 | 2014-12-03 | 乐金显示有限公司 | Display device |
| US9482900B2 (en) | 2013-05-27 | 2016-11-01 | Lg Display Co., Ltd. | Display device |
| CN104181721B (en) * | 2013-05-27 | 2017-07-14 | 乐金显示有限公司 | Display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100932304B1 (en) | Light guide plate for backlight unit having an asymmetric prism on the back and liquid crystal display using the same | |
| KR100942490B1 (en) | Light guide panel for LCD back light unit and LCD back light unit thereby | |
| CN102262842B (en) | Frameless display method and device | |
| WO2007115038A3 (en) | Edge-lit optical display with fluted optical plate | |
| CN104977646A (en) | Light guide plate and surface light source device | |
| EP2674669A1 (en) | Light guide plate and backlight module using the same | |
| JP2015525493A5 (en) | ||
| WO2009066474A1 (en) | Liquid crystal display | |
| ATE428954T1 (en) | LIGHT SOURCE WITH LIGHT GUIDE, WHICH HAS LIGHT DIFFERING AND LIGHT DIRECTING STRUCTURES | |
| CN102914907B (en) | Display device | |
| CN102644890B (en) | Narrow-frame backlight module | |
| KR102328532B1 (en) | Multi-screen display apparatus | |
| CN102997133A (en) | Double-vision backlight mould and liquid-crystal display device | |
| CN104516136B (en) | Display device, spliced display and backlight module | |
| CN101424823A (en) | Micro-edge splicing LCD flat panel display and spliced TV wall | |
| CN101369031A (en) | Glass prism sheet and LCD device adopting the same | |
| WO2008093930A1 (en) | Light guide panel for lcd back light unit and lcd back light unit thereby | |
| CN111880336A (en) | Backlight assembly and liquid crystal display module | |
| CN101363926B (en) | LCD device and prismatic lens thereof | |
| CN104456412A (en) | Optical film, backlight and display device | |
| CN101943822A (en) | Integrated optical sheet and optical device having the same | |
| CN201731379U (en) | Backlight device of liquid crystal television set | |
| CN102331640A (en) | Liquid crystal backlight display module | |
| CN103511918A (en) | Backlight module and liquid crystal display device | |
| CN202256965U (en) | Liquid crystal backlight display module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20120125 |