CN203241669U - Optical membrane - Google Patents
Optical membrane Download PDFInfo
- Publication number
- CN203241669U CN203241669U CN 201320266439 CN201320266439U CN203241669U CN 203241669 U CN203241669 U CN 203241669U CN 201320266439 CN201320266439 CN 201320266439 CN 201320266439 U CN201320266439 U CN 201320266439U CN 203241669 U CN203241669 U CN 203241669U
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- diffusion layer
- light guide
- light source
- 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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- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses an optical membrane which comprises a light source and a light guide plate, wherein the light source is located on the light inlet side of the light guide plate, light of the light source is led into the light guide plate through the light inlet side to be led out of a light outlet face of the light guide plate, the upper portion of the light outlet face is sequentially provided with a diffusion layer, a PET substrate and a prismatic lens from the near to the distant, and one face, close to the light outlet face, of the diffusion layer is provided with a plurality of protruding portions. According to the optical membrane, the diffusion layer is arranged on the bottom of the PET substrate, the protruding portions are arranged on the face, close to the light outlet face, of the diffusion layer, and diffusivity of the light is better.
Description
Technical field
The utility model belongs to the LED-backlit field, is specifically related to a kind of blooming piece.
Background technology
LED display has been widely used in the fields such as mobile phone, computing machine, household electrical appliances, the main flow LED display all belongs to non-emissive type display screen at present, the characteristics of this display screen are need to add blooming piece in liquid crystal panel control display picture, for picture disply provides enough brightness.
In the prior art, mostly blooming piece is to adopt following structure: be made of in order reflecting plate, light guide plate, substrate, prismatic lens, also be provided with in addition a light source in the light inlet side of above-mentioned light guide plate, wherein for increasing astigmatism, adopt more and in substrate, bury astigmatic particle underground, but light-dispersing effect is not good.
The utility model content
The utility model provides a kind of blooming piece, and purpose is to solve the not good problem of light-dispersing effect.
The technical solution of the utility model is such:
A kind of blooming piece, comprise light source and light guide plate, described light source is positioned at the light inlet side of described light guide plate, the light of described light source is derived by its exiting surface after importing described light guide plate by described light inlet side, described exiting surface top from the close-by examples to those far off is provided with diffusion layer, pet substrate and prismatic lens successively, and described diffusion layer is provided with a plurality of lug bosses near the one side of described exiting surface.
The beneficial effects of the utility model: a diffusion layer is arranged at pet substrate bottom, and this diffusion layer is provided with a plurality of lug bosses near the one side of described exiting surface, the diffusivity of light is better.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
With reference to figure 1, a kind of blooming piece, comprise light source 100 and light guide plate 200, described light source 100 is positioned at the light inlet side of described light guide plate 200, described light source 100 provides Ray Of Light, this bundle light after above-mentioned light inlet side enters light guide plate 200 at a certain angle the exiting surface 201 by this light guide plate 200 leave this light guide plate 200 and enter the diffusion layer 300, diffusion layer 300 is provided with pet substrate 400, described diffusion layer 400 is provided with a plurality of lug bosses near the one side of described exiting surface 201, and described pet substrate 400 is provided with a plurality of prismatic lenses 500.
Optimize, the bottom 202 of described light guide plate 200 is for being provided with the mirror surface of microstructure, and light utilization efficiency is higher.In addition, a plurality of lug bosses are evenly distributed on the described diffusion layer, and the diffusivity of light is better.
Optimize, described prismatic lens 500 tops are fillet type or waveform smooth surface, and light-dispersing effect is better, and can reduce 500 pairs of adjacent optical elements scratches of prismatic lens; Certainly, also can be other shapes.
Above-described the utility model embodiment does not consist of the restriction to the utility model protection domain.Any modification of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present utility model.
Claims (4)
1. blooming piece, it is characterized in that: comprise light source and light guide plate, described light source is positioned at the light inlet side of described light guide plate, the light of described light source is derived by its exiting surface after importing described light guide plate by described light inlet side, described exiting surface top from the close-by examples to those far off is provided with diffusion layer, pet substrate and prismatic lens successively, and described diffusion layer is provided with a plurality of lug bosses near the one side of described exiting surface.
2. blooming piece as claimed in claim 1 is characterized in that, the bottom of described light guide plate is the mirror surface that is provided with microstructure.
3. blooming piece as claimed in claim 1 is characterized in that, the top of described prismatic lens is fillet type or waveform smooth surface.
4. blooming piece as claimed in claim 1 is characterized in that, a plurality of lug bosses are evenly distributed on the described diffusion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320266439 CN203241669U (en) | 2013-05-16 | 2013-05-16 | Optical membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320266439 CN203241669U (en) | 2013-05-16 | 2013-05-16 | Optical membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241669U true CN203241669U (en) | 2013-10-16 |
Family
ID=49318949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320266439 Expired - Fee Related CN203241669U (en) | 2013-05-16 | 2013-05-16 | Optical membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227796A1 (en) * | 2018-05-28 | 2019-12-05 | 武汉华星光电技术有限公司 | Backlight module, and display device |
-
2013
- 2013-05-16 CN CN 201320266439 patent/CN203241669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227796A1 (en) * | 2018-05-28 | 2019-12-05 | 武汉华星光电技术有限公司 | Backlight module, and display device |
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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: 20131016 Termination date: 20160516 |