CN103411177A - Backlight board of display screen - Google Patents
Backlight board of display screen Download PDFInfo
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- CN103411177A CN103411177A CN2013103283690A CN201310328369A CN103411177A CN 103411177 A CN103411177 A CN 103411177A CN 2013103283690 A CN2013103283690 A CN 2013103283690A CN 201310328369 A CN201310328369 A CN 201310328369A CN 103411177 A CN103411177 A CN 103411177A
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- backlight
- face
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- board
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Abstract
The invention discloses a backlight board of a display screen. The backlight board comprises a backlight board body and backlight sources used with the backlight board. The backlight board is a transparent wedge shaped board comprising a backlight face, a light emergent face and a light incident face, the light incident face is perpendicular to the light emergent face, and the backlight sources are arranged on the light incident face. The backlight board is further provided with a transparent light incident component which is a triangular prism with the cross section being an isosceles right triangle, the first right-angle face of the triangular prism is arranged to be fitted with the light incident face, a light reflection layer is arranged on the bottom face of the triangular prism, a 45-degree included angle is formed between the bottom face of the triangle prism and the light emergent face, the second right-angle face is parallel to the light emergent face, and the backlight sources are arranged on the second right-angle face. A diffuse reflection face is arranged on the backlight face of the backlight board body. The light incident component and the backlight board body are structurally integrated. The backlight board of the display screen is simple in structure and easy to produce; single-side illumination is adopted, so that the number of LEDs is greatly reduced, and cost is reduced; distance between incident points of the LEDs and the light reflection face is short, and incident lights are approximately uniform and parallel and form a uniform backlight effect on the light emergent face after reflection and diffuse reflection.
Description
Technical field
The present invention relates to a kind of display backlight plate.
Background technology
Car audio system is generally used LCD to show, LCD is backlight uniformly is the enjoyment on a kind of sense organ for consumers, is also the requirement of car enterprise.And in industry, be subjected to space, structure influence at present, mainly by increasing the methods such as LED quantity and LGP solarization line, meet uniform requirement backlight.And adopt the mode that increases LED quantity, if adopted the methods such as the uniform LED in both sides or one-sided intensive layout LED, although can solve preferably LCD backlight uniformity problem, cost is too high.And adopt a small amount of LED+ backlight to shine the method for line, and because the light analogue technique is ripe not enough at present, and there is no complete theoretical system support, can only be difficult to reach perfect condition, and the R&D cycle be long by constantly shining the line test, die cost is high.
Summary of the invention
In order to solve the problems referred to above of existing LCD existence backlight, save development cost, the invention provides a kind of design of wedge shape display backlight plate.
A kind of display backlight plate, comprise backlight and the backlight that coordinates backlight to use, described backlight is transparent clapboard, comprise shady face, exiting surface and incidence surface, described incidence surface is perpendicular to exiting surface, backlight is arranged at the incidence surface place, also be provided with transparent light inlet member, the light inlet member is that a cross section is the triangular prism of isosceles right triangle, the first right angle face of triangular prism and incidence surface laminating arrange, bottom surface is provided with reflector layer, bottom surface and exiting surface angle at 45 °, the second right angle face is parallel with exiting surface, backlight is arranged at the second face place, right angle.
Concrete, described reflector layer is reflective pad pasting or reflective sticker or reflecting coating.
More specifically, described backlight shady face is provided with diffuse surface.
Further, described light inlet member and backlight are integrated.
Preferably, diffuse surface is the exasperate of an even erosion line.
Preferably, diffuse surface is reflective pad pasting or a reflective sticker.
Preferably, diffuse surface is a reflective enamelled coating.
In sum, the present invention has following beneficial effect: (1) is simple for structure, easily produces; (2) adopt one-sided illumination, can greatly reduce LED quantity, reduce costs; (3) the LED incidence point is very short apart from reflective surface, and incident light is similar to uniform parallel rays, at exiting surface, forms uniform backlight effect after reflection and diffuse reflection.
The accompanying drawing explanation
Fig. 1 is the cross-sectional view of display backlight plate of the present invention;
Fig. 2 is the overall structure schematic diagram of display backlight plate of the present invention.
The specific embodiment
In order to allow those skilled in the art can understand better technical scheme of the present invention, below the invention will be further elaborated.
As illustrated in fig. 1 and 2, the present invention has disclosed a kind of display backlight plate, comprises backlight 1 and the backlight 2 that coordinates backlight to use, and described backlight is transparent clapboard, comprise shady face 11, exiting surface 12 and incidence surface 13, backlight 2 is arranged at the incidence surface place.Incidence surface 13 also is provided with transparent light inlet member 14, light inlet member 14 is that a cross section is the triangular prism of isosceles right triangle, the first right angle face of triangular prism and incidence surface laminating arrange, and bottom surface is provided with reflector layer, and reflector layer can be by reflective pad pasting or reflective sticker or reflecting coating realization.Bottom surface and exiting surface angle at 45 °, the second right angle face is parallel with exiting surface, and backlight is arranged at the second face place, right angle.Light inlet member and backlight are integrated.
Light is from backlight 2(LED etc.) penetrate after, the second Mian Houzai bottom surface, right angle (reflective surface) reflection by the light inlet member enters backlight, because the LED incidence point is very short apart from reflective surface, now light is similar to a kind of parallel uniform light, the parallel backlight of injecting under the reflection of backlight.The shady face of backlight is provided with diffuse surface, and light ray parallel is injected after backlight at diffuse surface by diffuse reflection equably.Reach the effect of even back.
Diffuse surface can be by evenly erosion line, spray or silk-screen reflectorised paint, the methods such as reflective membrane, subsides reflecting piece of pasting realize.
The present embodiment is more excellent embodiment of the present invention, and the part be not described in detail all adopts known mature technology.It should be noted that; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (7)
1. display backlight plate, comprise backlight and the backlight that coordinates backlight to use, described backlight is transparent clapboard, comprise shady face, exiting surface and incidence surface, described incidence surface is perpendicular to exiting surface, backlight is arranged at the incidence surface place, it is characterized in that: also be provided with transparent light inlet member, the light inlet member is that a cross section is the triangular prism of isosceles right triangle, the first right angle face of triangular prism and incidence surface laminating arrange, bottom surface is provided with reflector layer, with exiting surface angle at 45 °, the second right angle face is parallel with exiting surface, backlight is arranged at the second face place, right angle.
2. a kind of display backlight plate according to claim 1, is characterized in that, described reflector layer is reflective pad pasting or reflective sticker or reflecting coating.
3. a kind of display backlight plate according to claim 2, is characterized in that, the backlight shady face is provided with diffuse surface.
4. a kind of display backlight plate according to claim 3, is characterized in that, light inlet member and backlight are integrated.
5. a kind of display backlight plate according to claim 4, is characterized in that, diffuse surface is the exasperate of an even erosion line.
6. a kind of display backlight plate according to claim 4, is characterized in that, diffuse surface is reflective pad pasting or a reflective sticker.
7. a kind of display backlight plate according to claim 4, is characterized in that, diffuse surface is a reflective enamelled coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328369.0A CN103411177B (en) | 2013-07-31 | 2013-07-31 | A kind of display backlight plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310328369.0A CN103411177B (en) | 2013-07-31 | 2013-07-31 | A kind of display backlight plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103411177A true CN103411177A (en) | 2013-11-27 |
| CN103411177B CN103411177B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310328369.0A Active CN103411177B (en) | 2013-07-31 | 2013-07-31 | A kind of display backlight plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN103411177B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107895545A (en) * | 2017-12-14 | 2018-04-10 | 东莞腾马电子有限公司 | A kind of LCD display unit and LCD electronic equipment |
| US10295728B2 (en) | 2014-10-23 | 2019-05-21 | Corning Incorporated | Light diffusing component and a method of manufacturing a light diffusing component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401733Y (en) * | 2009-04-23 | 2010-02-10 | 华映光电股份有限公司 | Light guide plate and backlight module thereof |
| CN102767768A (en) * | 2012-08-08 | 2012-11-07 | 深圳市华星光电技术有限公司 | Side-light type backlight module and LCD (liquid crystal display) |
| CN103017090A (en) * | 2013-01-16 | 2013-04-03 | 深圳市华星光电技术有限公司 | Light leading-in system, side-inlet backlight module and liquid crystal display |
-
2013
- 2013-07-31 CN CN201310328369.0A patent/CN103411177B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401733Y (en) * | 2009-04-23 | 2010-02-10 | 华映光电股份有限公司 | Light guide plate and backlight module thereof |
| CN102767768A (en) * | 2012-08-08 | 2012-11-07 | 深圳市华星光电技术有限公司 | Side-light type backlight module and LCD (liquid crystal display) |
| CN103017090A (en) * | 2013-01-16 | 2013-04-03 | 深圳市华星光电技术有限公司 | Light leading-in system, side-inlet backlight module and liquid crystal display |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10295728B2 (en) | 2014-10-23 | 2019-05-21 | Corning Incorporated | Light diffusing component and a method of manufacturing a light diffusing component |
| CN107895545A (en) * | 2017-12-14 | 2018-04-10 | 东莞腾马电子有限公司 | A kind of LCD display unit and LCD electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103411177B (en) | 2016-08-24 |
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Address after: 516006 Guangdong province Huizhou City Zhongkai high tech Zone and five West Road No. 103 Applicant after: HUIZHOU DESAY SV AUTOMOTIVE CO., LTD. Address before: 516006 Guangdong province Huizhou City Zhongkai high tech Zone and five West Road No. 103 Applicant before: Huizhou Desay SV Auto. Electronics Co., Ltd. |
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