CN101936499A - Optical film and application thereof - Google Patents
Optical film and application thereof Download PDFInfo
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- CN101936499A CN101936499A CN2009101425328A CN200910142532A CN101936499A CN 101936499 A CN101936499 A CN 101936499A CN 2009101425328 A CN2009101425328 A CN 2009101425328A CN 200910142532 A CN200910142532 A CN 200910142532A CN 101936499 A CN101936499 A CN 101936499A
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- blooming piece
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Abstract
The invention provides an optical film and an application thereof; the optical film is used on a backlight module and comprises a body for refracting lights passing through the main body, wherein the body is at least provided with a plurality of first structures and a plurality of second structures regularly arranged in an undulant manner on one of upper and lower surfaces; each first structure and each second structure are both provided with circular projections and sections in substantially circular arc shape; and the surrounding of each first structure is enclosed with a plurality of second structures.
Description
Technical field
The invention relates to a kind of blooming piece, particularly relevant for a kind of blooming piece that is applied to backlight module.
Background technology
Mobile Communications and LCD is flourish in recent years, for the digitlization articles for use, for example: employed LCDs such as mobile phone, PDA(Personal Digital Assistant), mobile computer, its required light is dependent on backlight module fully to be provided, and makes LCD show its briliancy, the uniformity ... Deng.Therefore be able to more even dispersing for the light that backlight module is sent, can use multiple diaphragm in the backlight module, for example: diffusion sheet (DIFFUSING FILM), prismatic lens (PRISM FILM), brightness enhancement film (BRIGHTNESS ENHANCEMENT FILM/ is called for short BEF) ... Deng.Wherein the function of diffusion sheet is to want even disperse light, and the function of prismatic lens and brightness enhancement film is the light-ray condensing that will pass through and blast.But above-mentioned various diaphragms respectively have its difference in functionality, and backlight module is in order to comprise above-mentioned various diaphragm, make not only time-consuming and cost is also high.Further follow-up, develop and a kind of blooming piece of integrating multiple function, can provide functions such as increasing briliancy and light uniformity simultaneously, as the TaiWan, China patent M294677 of prior art.M294677 provides a kind of blooming piece of multisection type light collecting, comprises a film substrate and some prisms, can promote the briliancy and the luminous flux of backlight module, but can't reach the purpose of diffusion.The TaiWan, China patent I287116 of prior art provides a kind of microstructure optical membrane, comprise one first optical surface, one second optical surface and a plurality of microstructure unit that can receive an incident light are positioned on first optical surface, can utilize and make two kinds of difform sides on the above-mentioned single microstructure unit, reaching the combined optical effect of light harvesting and diffusion, but on production process, be still complexity.
Summary of the invention
Main purpose of the present invention provides a kind of blooming piece, for being used in backlight module, has high briliancy and high uniformity.
Secondary objective of the present invention provides a kind of blooming piece, for being used in backlight module, can simplifying processing procedure and reduce cost of manufacture.
In order to solve the desirable not to the utmost part of above-mentioned prior art, the invention provides a kind of blooming piece, available in backlight module, comprise that body is in order to the light of refraction by body.Wherein body to one of them that is less than upper and lower surface is provided with a plurality of first structures and a plurality of second structure that regularly arranged height rises and falls, each first structure and each second structure all have circular projection and roughly are circular-arc section, and wherein each first structure periphery is surrounded by a plurality of second structures.
A further object of the present invention provides a kind of backlight module, and its employed blooming piece has high briliancy and high uniformity.
A further object of the present invention provides a kind of backlight module, and its employed blooming piece can be simplified processing procedure and reduce cost of manufacture.
The present invention further provides a kind of backlight module, for example side light type back light module or direct type backlight module.The employed blooming piece of backlight module comprises that body is in order to the light of refraction by body.Wherein body to one of them that is less than upper and lower surface is provided with a plurality of first structures and a plurality of second structure that regularly arranged height rises and falls, each first structure and each second structure all have circular projection and are circular-arc section, and wherein each first structure periphery is surrounded by a plurality of second structures.
Description of drawings
Because the present invention discloses a kind of blooming piece and in the application of correlated digital product, wherein optical principle of being utilized and digital product basic framework, for having, correlative technology field knows that usually the knowledgeable can understand, so, no longer do complete description with hereinafter explanation.Simultaneously, with the accompanying drawing that is hereinafter contrasted, be to express the structural representation relevant with feature of the present invention, also do not need according to the complete drafting of actual size, it is bright to need thing to chat, wherein:
Figure 1A is a cutaway view, is first preferred embodiment that proposes according to the present invention, is a kind of structural representation of blooming piece section.
Figure 1B is a schematic diagram, is first preferred embodiment that proposes according to the present invention, is a kind of perspective view of circle of blooming piece.
Fig. 1 C is a schematic diagram, is first preferred embodiment that proposes according to the present invention, is a kind of blooming piece.
Fig. 1 D is a schematic diagram, is first preferred embodiment that proposes according to the present invention, is another kind of blooming piece.
Fig. 1 E is a schematic diagram, is first preferred embodiment that proposes according to the present invention, is another kind of blooming piece.
Fig. 1 F is a schematic diagram, is first preferred embodiment that proposes according to the present invention, is another kind of blooming piece.
Fig. 2 is a schematic diagram, is second preferred embodiment that proposes according to the present invention, is a side light type back light module.
Fig. 3 is a schematic diagram, is the 3rd preferred embodiment that proposes according to the present invention, is bottom-lighting type back light module.
The specific embodiment
At first please refer to Figure 1A, is first preferred embodiment that the present invention proposes, and is a kind of blooming piece 10, and for being used in backlight module, it comprises that body 1 is in order to the light of refraction by body 1.
Above-mentioned body 1 is provided with a plurality of first structures 11 and a plurality of second structures 12 that regularly arranged height rises and falls to being less than one of them of upper surface 21 or lower surface 22.Please continue with reference to Figure 1B, wherein each first structure 11 all has circular projection 1071 and 1072 with each second structure 12, and has the section 106 that roughly is circular-arc.Be surrounded by second structure 12 of specific quantity around each first structure 11, thus, after light penetration above-mentioned first structure 11 and second structure 12, the phenomenon of many refractions and scattering can take place, so just caused the effect of optics diffusion, so the light that backlight module is provided has preferable uniformity.In addition, roughly be circular-arc,, have higher briliancy so can improve backlight module so there is the effect of convex lens to reach the purpose of cohesion light because first structure 11 and second structure 12 have circular projection and section.The present invention further can have different enforcement sample attitudes, and for example: please refer to Fig. 1 C, is that 4 second structures 12 are surrounded 1 first structure 11, and wherein the circular-arc section 106 of second structure 12 is a convex, and the circular-arc section 106 of first structure 11 is a recess.Please refer to Fig. 1 D, also be that 4 second structures 12 are surrounded 1 first structure 11, but wherein the circular-arc section 106 of second structure 12 is a recess, and the circular-arc section 106 of first structure 11 is a convex.Please refer to Fig. 1 E and Fig. 1 F, is that 6 second structures 12 are surrounded 1 first structure 11.
For the briliancy that improves backlight module and have preferable uniformity, the present invention is through after the experiment test, discovery is in blooming piece 10 of the same area, and the circular projection 1071 of first structure 11 and second structure 12 and 1072 area ratio are big more, and then briliancy and uniformity can be high more.On the other hand, when the gross area of the circular projection area of first structure 11 and second structure 12 accounts for 70% when above of blooming piece entire area, briliancy and uniformity also can be high more.Please continue 1C with reference to figure, be that 4 circular-arc sections 106 surround 1 circular-arc section 106 for second structure 12 of convex and are first structure 11 of recess, this moment, first structure 11 was identical with the projection radius of the projected area of second structure 12, according to above-mentioned experimental result, obtain when the projection radius of first structure 11 and second structure 12 is 25 microns, such textural association can reach preferable briliancy and inhomogeneity effect.Please continue 1D with reference to figure, be that 4 second structures 12 are surrounded 1 first structure 11, the projection radius of each first structure 11 is greater than the projection radius of each second structure 12 at this moment, according to experimental result of the present invention, when the projection radius of first structure 11 is that 25 microns, the projection radius of second structure 12 are during less than 10.35 microns, because fully used first structure 11 and second structure, 12 formed circular projection areas at blooming piece 10, so can reach better briliancy and inhomogeneity effect.
Please continue the 1E with reference to figure, the present invention further tests discovery, and when 6 second structures 12 were surrounded 1 first structure 11, natch, the gross area of the circular projection area of these first structures 11 and second structure 12 accounted for more than 70% of blooming piece entire area.If this moment, first structure 11 was identical with the projection radius of second structure 12, when the projection radius of first structure 11 and second structure 12 is 25 microns, can reach preferable briliancy and inhomogeneity effect.Please continue with reference to figure 1F again, when 6 second structures 12 are surrounded 1 first structure 11, if first structure 11 is greater than the projection radius of second structure 12 at this moment, and the projection radius of first structure 11 is 25 microns, the projection radius of second structure 12 is during less than 3.86 microns, also can reach preferable briliancy and inhomogeneity effect.
The circular-arc section 106 of above-mentioned first structure of mentioning 11 and second structure 12 can be all convex or be recess, but also one of them is a convex, and another then is a recess, is decided by the optical design of reality.In addition, the first above-mentioned structure 11 and second structure 12 be except the upper surface 21 that can place body 1 or one of them of lower surface 22, also can upper surface 21 and lower surface 22 all be provided with simultaneously.
Please continue with reference to figure 2, be second preferred embodiment that the present invention proposes, and is the schematic diagram of a side light type back light module 100.Side light type back light module 100 comprises a housing 101, a LGP 102, a light supply apparatus 103, a reflection diaphragm 104 and Shu blooming piece 10 at least.Wherein the blooming piece 10 in first preferred embodiment is described as described above for the structure of blooming piece 10 and feature.
Please continue with reference to figure 3, be the 3rd preferred embodiment that the present invention proposes, and is the schematic diagram of bottom-lighting type back light module 200.Direct type backlight module 200 comprises a housing 201, a LGP 202, a light supply apparatus 203 and a blooming piece 10 at least.Wherein the blooming piece 10 in first preferred embodiment is described as described above for the structure of blooming piece 10 and feature.
The above is preferred embodiment of the present invention only, is not in order to limit the right of applying for a patent of the present invention; Simultaneously above description should be understood and be implemented for the special personage who knows the present technique field, so other does not break away from the equivalence of being finished under the disclosed spirit and change or modification, all should be included in the claim scope.
Claims (10)
1. a blooming piece supplies to be used in backlight module, comprises that a body in order to the light of refraction by this body, is characterized in that:
This body to one of them that is less than upper and lower surface is provided with a plurality of first structures and a plurality of second structure that regularly arranged height rises and falls, each first structure and each second structure all have circular projection and roughly are circular-arc section, and wherein each first structure periphery is surrounded by second structure of specific quantity, and the gross area of projection that described first structure adds the circle of the above second structure accounts for this blooming piece entire area more than 70%.
2. according to the described blooming piece of claim 1, it is characterized in that wherein this specific quantity is 4.
3. according to the described blooming piece of claim 1, it is characterized in that wherein this specific quantity is 6.
4. according to claim 2 or 3 described blooming pieces, it is characterized in that wherein the circular-arc section of each first structure and each second structure is convex, another is recess for convex to be recess or.
5. according to claim 2 or 3 described blooming pieces, it is characterized in that wherein each first structure is identical with the projection radius of the circle of each second structure, this projection radius is 25 microns.
6. according to claim 2 or 3 described blooming pieces, it is characterized in that wherein the projection radius of each first structure is greater than the projection radius of each second structure, the projection radius of this first structure is 25 microns, and the projection radius of this second structure is less than 10.35 microns.
7. according to claim 2 or 3 described blooming pieces, it is characterized in that wherein said first structure and described second structure are arranged at the upper surface of this body and one of them of lower surface simultaneously.
8. according to claim 2 or 3 described blooming pieces, it is characterized in that wherein said first structure and described second structure are arranged at the upper surface and the lower surface of this body respectively.
9. side light type back light module, a reflection diaphragm that comprises a housing, a LGP at least, is positioned at a light supply apparatus of this LGP side and is positioned at this LGP below; It is characterized in that:
This LGP top further is provided with a blooming piece, and this blooming piece has wherein each described feature of claim 1 to 8.
10. direct type backlight module comprises a housing, a LGP at least, is positioned at a light supply apparatus of this LGP lower surface; It is characterized in that:
This LGP top further is provided with a blooming piece, and this blooming piece has wherein each described feature of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101425328A CN101936499A (en) | 2009-06-29 | 2009-06-29 | Optical film and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101425328A CN101936499A (en) | 2009-06-29 | 2009-06-29 | Optical film and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101936499A true CN101936499A (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101425328A Pending CN101936499A (en) | 2009-06-29 | 2009-06-29 | Optical film and application thereof |
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| CN (1) | CN101936499A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162868A (en) * | 2011-05-04 | 2011-08-24 | 上海凯鑫森产业投资控股有限公司 | Optical sheet and backlight module with same |
| CN102540290A (en) * | 2012-02-03 | 2012-07-04 | 上海凯鑫森产业投资控股有限公司 | Diffusing piece and liquid crystal display device |
| CN106257316A (en) * | 2015-06-19 | 2016-12-28 | 高智股份公司 | Composite pattern light guide plate and manufacture method thereof |
-
2009
- 2009-06-29 CN CN2009101425328A patent/CN101936499A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162868A (en) * | 2011-05-04 | 2011-08-24 | 上海凯鑫森产业投资控股有限公司 | Optical sheet and backlight module with same |
| CN102162868B (en) * | 2011-05-04 | 2013-05-22 | 凯鑫森(上海)功能性薄膜产业有限公司 | Optical sheet and backlight module with same |
| CN102540290A (en) * | 2012-02-03 | 2012-07-04 | 上海凯鑫森产业投资控股有限公司 | Diffusing piece and liquid crystal display device |
| CN106257316A (en) * | 2015-06-19 | 2016-12-28 | 高智股份公司 | Composite pattern light guide plate and manufacture method thereof |
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Application publication date: 20110105 |