CN202691902U - Composite optical film - Google Patents
Composite optical film Download PDFInfo
- Publication number
- CN202691902U CN202691902U CN 201220245857 CN201220245857U CN202691902U CN 202691902 U CN202691902 U CN 202691902U CN 201220245857 CN201220245857 CN 201220245857 CN 201220245857 U CN201220245857 U CN 201220245857U CN 202691902 U CN202691902 U CN 202691902U
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- optical film
- complex optical
- micro
- structural
- light source
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Abstract
The utility model discloses a composite optical film, which mainly comprises a base material, wherein the base material is provided with an upper surface and a lower surface which are opposite to each other; a plurality of strip-shaped prisms are arranged on the upper surface; a plurality of microstructures are arranged on the lower surface; and each microstructure is an arc structure recessed into the lower surface of the base material. The composite optical film is arranged above a light source, and a brightness enhancement film and a lower diffusion film are sequentially arranged between the composite optical film and the light source from top to bottom, so that light rays of the light source are uniformly scattered through the lower diffusion film to be irradiated to the brightness enhancement film, are refracted to be irradiated the composite optical film and are scattered through the composite optical film so as to be irradiated to a liquid crystal display panel; and due to the design of the strip-shaped prisms and the microstructures of the composite optical film, the light rays have a certain condensation function, so that the brightness of the whole surface light source is improved, and the composite optical film has a good light diffusion effect.
Description
Technical field
The relevant a kind of complex optical film of the utility model refers to especially a kind of can be applicable in the backlight module, and improves whole area source brightness, and has the complex optical film of better light diffusion effect.
Background technology
In recent years, that liquid crystal display (be called for short " LCD ") is being held under the arm is light, thin, short, little, heat and power consumption is low and the advantage of radiationless injury almost, progressively replaces conventional cathode ray tube (CRT) display.
Generally speaking, liquid crystal display is made of backlight module and display panels.Because display panels is non-emissive type panel, therefore need backlight module provide a uniform area source to display panels with show image.
In general, provide uniform area source in order to make backlight module, usually can use several pieces diffusion sheets to be diffused as uniform area source with point or the line source that will be disposed in the backlight module.In addition, significantly reduce the briliancy of area source for fear of using diffusion sheet, usually also can dispose again brightness enhancement film between diffusion sheet, to improve the integral brightness of area source.
The sheet-like structure that the structure of aforementioned diffusion sheet consists of mainly with acryl, Merlon (PC) or the materials such as acryl and cinnamic copolymer (MS) greatly, and have certain light transmittance.In order to reach light source diffusion and uniform effect, generally can be when it be made, add pigment and make it into the milky shape with the diffusion that is conducive to light source and evenly, even can add again many small diffusion particles that are, it is mainly by the setting of diffusion particle, to reach the purpose of light diffusion.
Only, each diffusion particle is because of when diffusion sheet is made, with diffusion particle with after base material evenly mixes, give one-body molded, so these diffusion particles are evenly distributed among diffusion sheet, and light source is when emitting beam, meeting so that directly over each light source part obtain maximum light sources, and seem comparatively bright, even if had many diffusion particles in this diffusion sheet, but because of the situation that is evenly distributed, and make the light diffusion effect at each position of diffusion sheet more consistent.But be positioned in aforementioned each light source directly over locate, wherein have stronger light position, the light diffusion effect that not relative acquisition is higher, but be fruit of identical light diffusion with other each position.So the brightness that is positioned at the diffusion sheet position of locating directly over each light source too highlights, make whole display effect present bright dark inequality.
And other plants the diffusion particle set-up mode and directly utilizes coating method, makes diffusion particle directly coat substrate surface, and forms the diffusion sheet that the surface has diffusion particle; Only, the density of uncontrollable each diffusion particle of this kind coating method makes it arrange poor effect, can't reach equally the effect of better light diffusion and homogenising.
So how a kind of simple in structure, diffusion sheet that can reach the diffusion of better light and uniformization effect is provided, it is the present problem that solves of the anxious wish of industry.
Summary of the invention
The technical problem that the utility model solves namely can be applicable in the backlight module providing a kind of, and improves whole area source brightness, and has the complex optical film of better light diffusion effect, is its main purpose.
The technological means that the utility model adopts is: a kind of complex optical film, this blooming mainly is provided with a base material, this base material is provided with relative upper and lower surface, it is prismatic that this upper surface is provided with plural strip, and this lower surface is provided with plural micro-structural, and each micro-structural is the arc structure body that is recessed in this base material lower surface.
Each micro-structural continuity is arranged.
Be provided with spacing between each micro-structural.
The section shape of each micro-structural is semicircle.
The prismatic continuity of each strip is arranged.
Be provided with spacing between each strip prism.
Can sequentially be provided with brightening piece and lower diffusion sheet under this complex optical film, and have at least one light source to be located at this time diffusion sheet below.
The section shape of each micro-structural is semicircle.
The upper surface of this brightening piece is provided with the strip prism that continuous uniform is arranged.
This light source is cold cathode ray tube or light emitting diode.
Complex optical film of the present utility model mainly is provided with a base material, this base material is provided with relative upper, lower surface, it is prismatic that this upper surface is provided with plural strip, and this lower surface is provided with plural micro-structural, each micro-structural is the arc structure body that is recessed in this base material lower surface, this complex optical film is arranged at the light source top, and from top to bottom sequentially be provided with brightening piece between this complex optical film and light source and descend diffusion sheet, make the light of light source after being incident upon brightening piece after the even scattering of lower diffusion sheet, be incident upon complex optical film after the refraction, after the complex optical film scattering, be incident upon display panels, strip prism and microstructure design by the utility model complex optical film, make light that to a certain degree aggtegation occur, improving the brightness of whole area source, and have better light diffusion effect.
Utilize above-mentioned primary structure feature, each micro-structural continuity of the utility model is arranged; Perhaps, be provided with spacing between each micro-structural.
The section shape of above-mentioned each micro-structural can be semicircle.
The prismatic continuity of each strip of above-mentioned complex optical film is arranged; Perhaps, be provided with spacing between each strip prism.
Above-mentioned brightening piece upper surface is provided with the strip prism that continuous uniform is arranged.
Above-mentioned light source can be cold cathode ray tube or light emitting diode (LED).
The beneficial effect that the utility model produces namely can be applicable in the backlight module providing a kind of, and improves whole area source brightness, and has the complex optical film of better light diffusion effect.
Description of drawings
Fig. 1 is the structural representation of complex optical film in the utility model.
Fig. 2 is another structural representation of complex optical film in the utility model.
Fig. 3 is complex optical film in the utility model, is applied to the structural representation of backlight module.
The figure number explanation:
Complex optical film 10
Micro-structural 13
Brightening piece 20
Strip prism 21
Lower diffusion sheet 30
Light source 40.
The specific embodiment
Utility model shown in Fig. 1 complex optical film structural representation of the present utility model, complex optical film 10 of the present utility model mainly is provided with a base material 11 (can be the PET material), this base material 11 is provided with relative upper, lower surface 111,112, this upper surface 111 is provided with plural strip prism 12, this base material lower surface 112 is provided with plural micro-structural 13, each micro-structural 13 is for being recessed into the arc structure body in this base material lower surface, among the embodiment as shown in the figure, prismatic 12 continuitys of each strip are arranged, and each micro-structural 13 continuity is arranged, and the section shape of each micro-structural 13 can be semicircle; In addition, prismatic 12 of each strip is provided with spacing, and shown in another embodiment of Fig. 2,13 of each micro-structurals also can be provided with spacing.
Wherein, diffusion sheet of the present utility model can be applicable in the backlight module, shown in the embodiment of Fig. 3, be applied to down straight aphototropism mode set, it includes at least: above-mentioned complex optical film 10, brightening piece 20, lower diffusion sheet 30 and light source 40, this complex optical film 10 is arranged at light source 40 tops, and 40 of this complex optical film 10 and light sources from top to bottom sequentially arrange brightening piece 20 and lower diffusion sheet 30.The upper surface of this brightening piece 20 is provided with the strip prism 21 that continuous uniform is arranged, and contiguous complex optical film 10.Light source 40 is cold cathode ray tube or light emitting diode (LED).
Make the light of light source 40 after being incident upon brightening piece 20 after the lower diffusion sheet 30 even scatterings, be incident upon complex optical film 10 after the refraction, after complex optical film 10 scatterings, be incident upon the display panels (not shown), wherein, strip prismatic 12 and micro-structural 13 designs by the utility model complex optical film, make light that to a certain degree aggtegation occur, improving the brightness of whole area source, and have better light diffusion effect.
Claims (10)
1. a complex optical film is characterized in that, this blooming mainly is provided with a base material, this base material is provided with relative upper and lower surface, it is prismatic that this upper surface is provided with plural strip, and this lower surface is provided with plural micro-structural, and each micro-structural is the arc structure body that is recessed in this base material lower surface.
2. complex optical film as claimed in claim 1 is characterized in that, each micro-structural continuity is arranged.
3. complex optical film as claimed in claim 1 is characterized in that, is provided with spacing between each micro-structural.
4. such as arbitrary described complex optical film in the claims 1 to 3, it is characterized in that the section shape of each micro-structural is semicircle.
5. such as arbitrary described complex optical film in the claims 1 to 3, it is characterized in that the prismatic continuity of each strip is arranged.
6. such as arbitrary described complex optical film in the claims 1 to 3, it is characterized in that, be provided with spacing between each strip prism.
7. such as arbitrary described complex optical film in the claims 1 to 3, it is characterized in that, can sequentially be provided with brightening piece and lower diffusion sheet under this complex optical film, and have at least one light source to be located at this time diffusion sheet below.
8. complex optical film as claimed in claim 7 is characterized in that, the section shape of each micro-structural is semicircle.
9. complex optical film as claimed in claim 7 is characterized in that, the upper surface of this brightening piece is provided with the strip prism that continuous uniform is arranged.
10. complex optical film as claimed in claim 7 is characterized in that, this light source is cold cathode ray tube or light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245857 CN202691902U (en) | 2012-05-28 | 2012-05-28 | Composite optical film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245857 CN202691902U (en) | 2012-05-28 | 2012-05-28 | Composite optical film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691902U true CN202691902U (en) | 2013-01-23 |
Family
ID=47547517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220245857 Expired - Fee Related CN202691902U (en) | 2012-05-28 | 2012-05-28 | Composite optical film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957641A (en) * | 2016-10-17 | 2018-04-24 | 群创光电股份有限公司 | Display device |
| US10690960B2 (en) | 2016-10-17 | 2020-06-23 | Innolux Corporation | Display device |
-
2012
- 2012-05-28 CN CN 201220245857 patent/CN202691902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957641A (en) * | 2016-10-17 | 2018-04-24 | 群创光电股份有限公司 | Display device |
| US10690960B2 (en) | 2016-10-17 | 2020-06-23 | Innolux Corporation | 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: 20130123 Termination date: 20180528 |