CN202256965U - Liquid crystal backlight display module - Google Patents
Liquid crystal backlight display module Download PDFInfo
- Publication number
- CN202256965U CN202256965U CN2011203602264U CN201120360226U CN202256965U CN 202256965 U CN202256965 U CN 202256965U CN 2011203602264 U CN2011203602264 U CN 2011203602264U CN 201120360226 U CN201120360226 U CN 201120360226U CN 202256965 U CN202256965 U CN 202256965U
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a liquid crystal backlight display module which is provided to ensure that the liquid crystal backlight display module is thinner. The liquid crystal backlight display module comprises a light source, a light guide plate, a brightening slice and a display screen, wherein the brightening slice is located between the front side of the light guide plate and the back side of the display screen; the front side of the brightening slice is a forward direction light gathering stripe prism arranging face; the light source is arranged at one side of the light guide plate; a plurality of light guide spots are arranged at the back side of the light guide plate; the light emitted by the light source reaches the light guide spots directly or via total reflection of the surface of the light guide plate, is emitted out from the front side of the light guide plate after being diffused by the light guide spots and is displayed on the display screen after being gathered by the brightening slice; the front side of the light guide plate is designed as the forward direction light gathering stripe prism arranging face; and the prism stripe directions of the forward direction light gathering stripe prism arranging faces on the light guide plate and on the brightening slice are mutually interlaced. The liquid crystal backlight display module disclosed by the utility model is used for liquid crystal backlight display.
Description
Technical field
The utility model relates to LCD backlight and shows 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.
The utility model content
The purpose of the utility model is to make LCD backlight 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 utility model 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 the utility model LCD backlight 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 the preferred embodiment of the utility model, equivalent technical solutions on this basis still falls into the utility model protection scope.
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 |
|---|---|---|---|
| CN2011203602264U CN202256965U (en) | 2011-09-23 | 2011-09-23 | Liquid crystal backlight display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203602264U CN202256965U (en) | 2011-09-23 | 2011-09-23 | Liquid crystal backlight display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256965U true CN202256965U (en) | 2012-05-30 |
Family
ID=46118182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203602264U Expired - Fee Related CN202256965U (en) | 2011-09-23 | 2011-09-23 | Liquid crystal backlight display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256965U (en) |
-
2011
- 2011-09-23 CN CN2011203602264U patent/CN202256965U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170923 |