CN203455499U - Novel optical composite membrane with functions of high brightening and diffusion - Google Patents
Novel optical composite membrane with functions of high brightening and diffusion Download PDFInfo
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- CN203455499U CN203455499U CN201220737218.1U CN201220737218U CN203455499U CN 203455499 U CN203455499 U CN 203455499U CN 201220737218 U CN201220737218 U CN 201220737218U CN 203455499 U CN203455499 U CN 203455499U
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Abstract
The utility model relates to a novel optical composite membrane with functions of high brightening and diffusion. The novel optical composite membrane comprises a transparent substrate; a brightening layer is arranged at one side of the transparent substrate; and an anti-scratching and bonding layer is arranged at the other side of the transparent substrate. Optical diffusion particles are distributed in the transparent substrate randomly. The brightening layer includes triangular prism structures with the sharp top ridge peaks and triangular prisms structures with the semicircular tops. The provided novel optical composite membrane with the simple structure has effects of high brightness and high scratching resistance and unification of the brightening effect and the shielding effect; bonding between the composite membrane and a light guiding plate can be avoided; and the requirement of development on brightening, thinning and lightening of an LCD module group can be met.
Description
Technical field
The utility model relates to a kind of optical thin film, particularly a kind of novel optical blast diffusion composite membrane with high blast and diffusion function.
Background technology
Ye Jing Xian Shi ﹙ LCD ﹚ is the most general current main flow display technique, and within following more than ten years, also will dominate all displays markets such as most TVs, notebook, mobile phone.Liquid crystal is the 4th state of material, is a kind of material between solid-state and liquid state, itself does not have a characteristics of luminescence, must rely on backlight that existing line light source ﹙ LED ﹚ or line light source ﹙ CCFL ﹚ are changed into area source and just can reach the function of demonstration.The quality of backlight performance directly affects the brightness of LCD video picture quality, particularly backlight, will directly have influence on the total quality of LCD display.
Along with LCD module is constantly to brighter, thinner, lighter future development, LED-backlit source becomes the main flow direction of backlight development gradually.Liquid crystal backlight system is mainly by light source, light guide plate, lower diffusion barrier, vertical brightness enhancement film, the compositions such as horizontal brightness enhancement film, upper diffusion barrier, the Main Function of diffusion barrier is by the light radiating from light guide plate, see through the effect that diffusion particle reaches atomizing light source, revise light and become uniform area light source.Blast sheet plays optically focused effect, improves the brightness of backlight.But these blooming piece stack used thicknesses are larger, cause backlight module volume larger, and assembly technology is more complicated, and diaphragm matching is poor, is prone to the not good phenomenon of scratch, covering, brightness, and overall cost is higher.
Discloseder compound brightening diffusion films in the industry, are generally comprised of brightness enhancement layer, transparent base layer, anti-scratch layer at present.For the anti-scratch performance guaranteeing, brightness enhancement layer prism design is that top presents circular shape, but the brightening effect of this structure is not good.Anti-scratch layer structure has two kinds, and a kind of particle is embedded in coating, and coating surface is more smooth, and this kind of structure scratch resistance better but easily and the light guide plate front phenomenon that sticks together; Structured particles protrudes from a coating, and outstanding particle makes between diaphragm and light guide plate no longer close contact, be difficult for the phenomenon that sticks together, but outstanding particle easily scratches light guide plate, and anti-scratch effect is bad.
Utility model content
Technical problem to be solved in the utility model is the weak point existing for prior art, and the high blast diffusion of a kind of novel optical composite membrane is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The high blast diffusion of a kind of novel optical composite membrane, one side at transparent base arranges brightness enhancement layer, another side at transparent base is provided with anti-scratch and tack coat, in transparent base, stochastic distribution light diffusion particle, and brightness enhancement layer comprises the triangular prism structure that triangular prism structure that rib peak, top is very sharp-pointed and top are semicircle shape.
In the high blast diffusion of above-mentioned optics composite membrane, the quantity of the triangular prism structure that described rib peak, top is very sharp-pointed accounts for 65～85% of prism sum, and rib spacing is 20～40 μ m.
In the high blast diffusion of above-mentioned optics composite membrane, the quantity that described top is the triangular prism structure of semicircle shape accounts for 15～35% of prism sum, and rib spacing is 30～50 μ m.
In the high blast diffusion of above-mentioned optics composite membrane, the radius that described top is the triangular prism structure of semicircle shape is 2～10 μ m, and the difference in height at the triangular prism structure top that its top and rib peak, top are very sharp-pointed is the radius length that top is the triangular prism structure of semicircle shape.
In the high blast diffusion of above-mentioned optics composite membrane, described rib peak angle is 60 °～120 °.
In the high blast of above-mentioned optics diffusion composite membrane, described anti-scratch and tack coat is formed through heat curing by the anti-scratch particle of flexibility, acryl resin or melmac, and wherein coating thickness is flexible anti-scratch particle diameter 1/2～2/3.
Compared with prior art, the utlity model has following advantage:
1. by stochastic distribution light diffusion particle in transparent base, played the effect of light diffusion layer, and by the one side at base material, brightness enhancement layer is set, make the light source of backlight module only by single high blast diffusion composite membrane, can make source light homogenising and luminance raising, reduced the quantity of the blooming piece of backlight module use, module is thinner, has simplified assembly technology and diaphragm matching problem, has reduced production cost.
2. by be provided with small size prism structure in brightness enhancement layer, make composite membrane there is stronger blast effect; Be provided with top and be semi-circular large scale prism structure and play a supporting role and anti scuffing effect, solved the problem of the not good or anti scuffing poor effect of conventional composite film brightness enhancement layer brightening effect.
3. by the another side at base material, be provided with anti-scratch and tack coat, solved the scratch problem that traditional brightening diffusion film causes light guide plate, the flexible particle that protrudes from coating has solved the problem that the conventional composite film back side and light guide plate front easily stick together.
4. the novel high brightening diffusion film that the utility model provides has guaranteed the unification of high brightening effect and high anti scuffing effect, has met LCD module constantly to requirement brighter, thinner, lighter future development.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, each list of reference numerals is: 1, transparent base; 2, light diffusion particle; 3, brightness enhancement layer; 4, top is the triangular prism structure of semicircle shape; 5, the very sharp-pointed triangular prism structure in top rib peak; 6, anti-scratch and tack coat; 7, flexible anti-scratch particle.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1; the utility model comprises clear PET base material 1, and in clear PET base material, stochastic distribution light diffusion particle 2, and this light diffusion particle can be used PMMA(polymethylmethacrylate) particle; also can use silica dioxide granule or siloxane particles, play the effect of light diffusion.Upper strata at transparent PET base material 1 arranges brightness enhancement layer 3, and brightness enhancement layer is provided with the prism structure of two kinds of sizes, and a kind of is the triangular prism structure 4 that large-sized top is semicircle shape, and a kind of is the very sharp-pointed triangular prism structure 5 in rib peak, undersized top.Large scale number of prisms accounts for 15～35% of sum, and rib spacing is 30～50 μ m; Small size number of prisms accounts for 65～85% of sum, and rib spacing is 20～40 μ m.Large scale prism top is semicircular structure, and radius is 2～10 μ m, and large scale prism half circular top part and small size prism overhead height are poor is radius length.Size dimension prism evenly collocation is distributed in brightness enhancement layer, and rib peak angle is controlled at 60 °～120 °, makes brightness enhancement layer have high brightening effect and good scratch resistance, prevents that brightness enhancement layer counter plate from causing scratch.In the lower floor of clear PET base material 1, anti-scratch and tack coat 6 is set, in anti-scratch and tack coat, is provided with flexible anti-scratch particle 7, this flexible anti-scratch particle can be used elastomeric modification PMMA(polymethylmethacrylate) particle, prevent scratch light guide plate.Anti-scratch layer is formed through heat curing by the anti-scratch particle of flexibility, acryl resin or melmac, and coating thickness is controlled at 1/2～2/3 of flexible anti-scratch particle diameter, and outstanding flexible particle makes the composite membrane back side and light guide plate front be difficult for sticking together.
The formation method of the anti-scratch and tack coat in the utility model can be direct laminating or coating, coating process can be: slit coating (slit die coating), micro-intaglio printing coating (micro gravurecoating) or roller coating (roller coating), but be not limited to this.
Brightness enhancement layer in the utility model is made, and can adopt known cylinder impression (roller imprint) or rice transfer printing (nanoimprinting lithography) technology how, but be not limited to this.
When using the high brightening diffusion film of novel optical of the present utility model, only need be arranged on the exiting surface of light guide plate, make anti-scratchly to contact with the exiting surface of light guide plate with tack coat; 2 brightness enhancement film in lower floor's diffusion barrier of the alternative traditional backlight module of the high brightening diffusion film of novel optical of the present utility model and upper strata.
Claims (4)
1. composite membrane is spread in the high blast of novel optical, it is characterized in that, one side at transparent base arranges brightness enhancement layer, at the another side of transparent base, is provided with anti-scratch and tack coat, and brightness enhancement layer comprises the triangular prism structure that triangular prism structure that rib peak, top is sharp-pointed and top are semicircle shape.
2. the high blast diffusion of optics according to claim 1 composite membrane, is characterized in that, described rib peak, top rib spacing is 20～40 μ m.
3. the high blast diffusion of optics according to claim 2 composite membrane, is characterized in that, the rib spacing that described top is the triangular prism structure of semicircle shape is 30～50 μ m.
4. the high blast diffusion of optics according to claim 3 composite membrane, is characterized in that, described rib peak angle is 60 °～120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220737218.1U CN203455499U (en) | 2012-12-28 | 2012-12-28 | Novel optical composite membrane with functions of high brightening and diffusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220737218.1U CN203455499U (en) | 2012-12-28 | 2012-12-28 | Novel optical composite membrane with functions of high brightening and diffusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455499U true CN203455499U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220737218.1U Expired - Lifetime CN203455499U (en) | 2012-12-28 | 2012-12-28 | Novel optical composite membrane with functions of high brightening and diffusion |
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| CN (1) | CN203455499U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065047A (en) * | 2017-02-20 | 2017-08-18 | 张家港康得新光电材料有限公司 | A kind of haze brightness enhancement film |
| CN107153298A (en) * | 2016-03-03 | 2017-09-12 | 欧姆龙株式会社 | Planar light source device, display device and electronic equipment |
| CN107870387A (en) * | 2016-09-28 | 2018-04-03 | 福建正德光电科技有限公司 | A kind of mixing material with guide-lighting performance |
| CN109270611A (en) * | 2018-12-11 | 2019-01-25 | 宁波激智科技股份有限公司 | A kind of complex optical film that high brightness height covers |
| CN109735216A (en) * | 2018-12-21 | 2019-05-10 | 宁波江北激智新材料有限公司 | A kind of composition and a kind of anti-moisture absorption brightness enhancement film and its application |
-
2012
- 2012-12-28 CN CN201220737218.1U patent/CN203455499U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107153298A (en) * | 2016-03-03 | 2017-09-12 | 欧姆龙株式会社 | Planar light source device, display device and electronic equipment |
| CN107870387A (en) * | 2016-09-28 | 2018-04-03 | 福建正德光电科技有限公司 | A kind of mixing material with guide-lighting performance |
| CN107065047A (en) * | 2017-02-20 | 2017-08-18 | 张家港康得新光电材料有限公司 | A kind of haze brightness enhancement film |
| CN109270611A (en) * | 2018-12-11 | 2019-01-25 | 宁波激智科技股份有限公司 | A kind of complex optical film that high brightness height covers |
| CN109735216A (en) * | 2018-12-21 | 2019-05-10 | 宁波江北激智新材料有限公司 | A kind of composition and a kind of anti-moisture absorption brightness enhancement film and its application |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
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| CX01 | Expiry of patent term |