CN202613317U - Diffuser plate in planar light mixing device - Google Patents
Diffuser plate in planar light mixing device Download PDFInfo
- Publication number
- CN202613317U CN202613317U CN 201220252899 CN201220252899U CN202613317U CN 202613317 U CN202613317 U CN 202613317U CN 201220252899 CN201220252899 CN 201220252899 CN 201220252899 U CN201220252899 U CN 201220252899U CN 202613317 U CN202613317 U CN 202613317U
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- diffuser plate
- pearl
- light
- coating
- mixed light
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- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The utility model discloses a diffuser plate in a planar light mixing device, which is characterized in that an incidence surface is coated with a coating with bead-shaped projections corresponding to a joint bright line position, i.e. a position with bright specks, of a backlight module light source or a backlight module, wherein the bead-shaped projections are distributed randomly, and the transmittance of the coating is greater than 50 percent. By adopting the technical scheme, when the light enters the surface of a bead-shaped structure, partial light penetrates the bead-shaped projections to be transmitted from a light-out surface of the diffuser plate to form emergent light, partial light is subjected to diffuse reflection on the surface of the bead-shaped projections to be returned to a light mixing space, and the residual light is converted to other energy to be absorbed by a light mixing body material. Therefore, the emergent light density of the bright speck position of the incidence surface of the diffuser plate is weakened, so that a uniform planar light emergent effect is obtained. The diffuser plate can be widely applied to the backlight source modules of a liquid crystal display device, an advertising lamp house, a planar illumination device, other planar light mixing devices and the like.
Description
Technical field
The utility model relates to the parts of mixed light equipment, relates in particular to the diffuser plate in the mixed light equipment of a kind of plane.
Background technology
At present; Diffuser plate is only through designing incident ray diffusion into the surface structure; Incident ray is spread and homogenize; To obtain the even brightness emergent light, it is widely used in plane mixed light framework, like the backlight module of liquid crystal display, plane mixed light, planar lighting device or other plane mixed light equipment etc. of advertising lamp box.The diffusion into the surface structure of conventional diffusion plate is the design of justifying homogeneous; Promptly in same layout area, duplicate and arrange a plurality of identical diffusion structures until the full whole space of a whole page of row; Its benefit is that making technology is simple; Only need a light-mixing structure template to get final product, but, but can't eliminate at the local speck that the diffuser plate incidence surface causes for the speck of LED spot light center in the bright line at splicing seams place in the jigsaw formula backlight module and the direct type backlight module.
Summary of the invention
The utility model provides the diffuser plate in a kind of plane mixed light equipment that can eliminate diffuser plate incidence surface speck.
The utility model adopts following technical scheme: corresponding backlight module light source of the incidence surface of diffuser plate or backlight module seam bright line position, promptly produce the speck place, and the protruding coating of spraying band pearl, the protruding random distribution of its pearl, the coating transmissivity is greater than 50%.
Described pearl convexity is outwards distributed to dredging by close by the center of speck.
Protruding big or small irregular of described pearl.
The protruding coating of described band pearl extremely comprises priming coat, intermediate layer and pearl coating outward successively with the diffuser plate incidence surface.
Described priming coat is spray epoxy, polyurethane or esters of acrylic acid coating, the heat cure moulding, and solidifying the back primer thickness is 18-22 μ m, light transmittance is greater than 80%.
Described intermediate layer is that spraying UV is coating material solidified, and solidifying the back intermediate layer thickness is 18-22 μ m, and attached to the priming coat surface, light transmittance is greater than 80%, and its surface adhesion force is low, and the pearl coating is in the low pearl convexity of forming of its surface adhesion force.
Described pearl coating is that spraying UV is coating material solidified, is the pearl convexity after the curing attached to interlayer surfaces, and light transmittance is greater than 80%, and described pearl coating is once to spray completion.
The utility model adopts above technical scheme; Utilize the protruding coating of pearl to have certain light transmittance; When light incides the pearlitic texture surface; A part of light penetration pearl convexity forms emergent light from the transmission of diffuser plate exiting surface, and another part light forms diffuse reflection and gets back to the mixed light space in the pearl convex surfaces, and remaining light then is converted into other form of energy and is absorbed by the light mixing body based material.Weaken the output intensity in diffuser plate incidence surface speck zone like this, go out light effect thereby obtain uniform in-plane.Backlight module, advertising lamp box, planar lighting device or other plane mixed light equipment etc. that can be widely used in liquid crystal display.
Description of drawings
Combine accompanying drawing that the utility model is done further detailed description at present:
Fig. 1 is the structural representation of the utility model diffuser plate;
Fig. 2 is the optical principle sketch map of the utility model diffuser plate.
The specific embodiment
See also shown in Figure 1ly, the incidence surface 11 corresponding backlight module light sources or the backlight module seam bright line position of the utility model diffuser plate 1 promptly produce the speck place, the protruding coating 2 of spraying band pearl, and the protruding random distribution of its pearl, the coating transmissivity is greater than 50%.Described pearl convexity can outwards be distributed to dredging by close by the center of speck, and the pearl convexity is big or small irregular.
The protruding coating 2 of described band pearl extremely can comprise priming coat 21, intermediate layer 22 and pearl coating 23 outward successively with the diffuser plate incidence surface.Priming coat 21 is spray epoxy, polyurethane or esters of acrylic acid coating, the heat cure moulding, and solidifying back priming coat 21 thickness is 18-22 μ m, light transmittance is greater than 80%.Intermediate layer 22 is that spraying UV is coating material solidified, and solidifying intermediate layer, back 22 thickness is 18-22 μ m, and attached to priming coat 21 surfaces, light transmittance is greater than 80%, and its surface adhesion force is low, and pearl coating 23 is in the low pearl convexity of forming of its surface adhesion force.Pearl coating 23 is that spraying UV is coating material solidified, is the pearl convexity after the curing attached to 22 surfaces, intermediate layer, and light transmittance is greater than 80%, and described pearl coating 23 is once to spray completion.
As shown in Figure 2, the protruding coating 2 of band pearl is attached to the incidence surface 11 of diffuser plate 1, has certain light transmittance.When light source 3 light incide the protruding coating of band pearl 2 surfaces; The protruding coating 2 of a part of light penetration band pearl forms emergent light from 12 transmissions of diffuser plate 1 exiting surface; Another part light forms diffuse reflection and gets back to the mixed light space on protruding coating 2 surface of band pearl, and remaining light then is converted into other form of energy and is absorbed by the light mixing body based material.
The protruding coating of band pearl takes shape in various optic materials surface, for example materials such as diffusion sheet, prismatic lens, reflector plate, optics adhesive tape, glass.Diffuser plate can adopt macromolecular materials such as PC, PS, PMMA, can only a kind of coating accomplish, as coating material solidified at above-mentioned material shiny surface spraying UV.
Pearl coating moulding process is following:
A. the spray gun bore determines the protruding diameter of pearl in the spraying area;
B. the angle between spray gun and the diffuser plate determines protruding shape and the area of pearl in the spraying area;
C. the distance between gun slot and the diffuser plate determines the protruding density of pearl in the spraying area;
D. the direction of relative movement between spray gun and the diffuser plate plate determines the protruding distribution shape of pearl in the spraying area;
E. the speed of related movement between spray gun and the diffuser plate determines the protruding density of pearl in the spraying area;
F. the pearl density of protrusions is by close to dredging distribution along spraying area from the inside to the outside.
Claims (8)
1. the diffuser plate in the plane mixed light equipment; It is characterized in that: corresponding backlight module light source of its incidence surface or backlight module seam bright line position promptly produce the speck place, the protruding coating of spraying band pearl; The protruding random distribution of its pearl, the coating transmissivity is greater than 50%.
2. the diffuser plate in the mixed light equipment of plane according to claim 1 is characterized in that: described pearl convexity is outwards distributed to dredging by close by the center of speck.
3. the diffuser plate in the mixed light equipment of plane according to claim 1 is characterized in that: protruding big or small irregular of described pearl.
4. the diffuser plate in the mixed light equipment of plane according to claim 1 is characterized in that: the protruding coating of described band pearl extremely comprises priming coat, intermediate layer and pearl coating outward successively with the diffuser plate incidence surface.
5. the diffuser plate in the mixed light equipment of plane according to claim 4; It is characterized in that: described priming coat is spray epoxy, polyurethane or esters of acrylic acid coating; The heat cure moulding, solidifying the back primer thickness is 18-22 μ m, light transmittance is greater than 80%.
6. the diffuser plate in the mixed light equipment of plane according to claim 4; It is characterized in that: described intermediate layer is that spraying UV is coating material solidified; Solidifying the back intermediate layer thickness is 18-22 μ m, and attached to the priming coat surface, light transmittance is greater than 80%; Its surface adhesion force is low, and the pearl coating is in the low pearl convexity of forming of its surface adhesion force.
7. the diffuser plate in the mixed light equipment of plane according to claim 4 is characterized in that: described pearl coating is that spraying UV is coating material solidified, is the pearl convexity after the curing attached to interlayer surfaces, and light transmittance is greater than 80%.
8. the diffuser plate in the mixed light equipment of plane according to claim 7 is characterized in that: described pearl coating is once to spray completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252899 CN202613317U (en) | 2012-05-30 | 2012-05-30 | Diffuser plate in planar light mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252899 CN202613317U (en) | 2012-05-30 | 2012-05-30 | Diffuser plate in planar light mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202613317U true CN202613317U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220252899 Expired - Fee Related CN202613317U (en) | 2012-05-30 | 2012-05-30 | Diffuser plate in planar light mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202613317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439857A (en) * | 2013-02-22 | 2013-12-11 | 杭州能基科技有限公司 | Method and device for converting laser into lighting source |
-
2012
- 2012-05-30 CN CN 201220252899 patent/CN202613317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439857A (en) * | 2013-02-22 | 2013-12-11 | 杭州能基科技有限公司 | Method and device for converting laser into lighting source |
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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 |
Granted publication date: 20121219 Termination date: 20200530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |