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Composition for anti-glaring film

An anti-glare film and composition technology, applied in the direction of coatings, polycarbonate coatings, etc., can solve the problems of easy aging deformation, reduced anti-glare effect, difficult shell refractive index, etc., to improve image clarity and contrast, Good light transmittance and simple preparation process

Inactive Publication Date: 2012-09-19
上海西源新能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the material must be able to be made into oil droplets, and the anti-glare effect is reduced because the second particles still cannot adhere to the first particles uniformly and permanently.
However, since the particles are difficult to uniformly disperse in the direction parallel to each other and perpendicular to the film, the film needs to be rectified several times; in addition, the anti-glare film does not improve its anti-glare property to the outside world
[0006] Patent CN200480017154, patent CN200480028161, patent CN200680000805, etc. disclose the anti-glare coating that adds transparent particles to the binder resin. Good, but the haze will increase and the contrast will decrease
The problems are: coating is difficult, it is difficult to control the thickness, density and shape of the shell at the same time, so it is difficult to match the refractive index of the shell with the binder resin and the core at the same time, resulting in a decrease in the anti-glare performance of the coating
The anti-glare film improves image clarity and contrast achieved by using an image display to a certain extent, but the anti-glare property decreases due to the relatively low melting point of organic particles and the tendency to age and deform

Method used

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  • Composition for anti-glaring film
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  • Composition for anti-glaring film

Examples

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Effect test

preparation example Construction

[0051] The preparation method of the anti-glare film of the present invention comprises the following steps: 1) preparing anti-glare inorganic particles; 2) preparing an anti-glare film composition; 3) coating the composition on a transparent substrate; 4) curing the composition to form an anti-glare film .

[0052] Step 1) Prepare anti-glare inorganic particles with an average surface roughness of 0.01-3 μm by chemical or physical methods; Step 2) Uniformly incorporate anti-glare inorganic particles into the transparent matrix by melt mixing or solvent dissolution mixing; Step 3 ) using wet coating, rod coating, spray coating, dip coating, spin coating, etc., the coating method is not limited thereto, but various coating methods known in the art can be used; Step 4) can be divided into two parts, drying and curing, or can be completed in one step.

Embodiment 1

[0054] 1) Preparation of silica antiglare particles:

[0055] At room temperature, add 8 mL of ammonia water (25%~28%), 10 mL of H 2 O. 100mL of absolute ethanol, after mixing evenly, drop 15mL of tetraethyl orthosilicate / 100mL of absolute ethanol solution at a rate of 10mL / min, centrifuge after 4 hours of reaction, wash with water 3 times, and dry at 70°C to obtain a rough surface silica particles (such as Figure 9 );

[0056] 2) Preparation of anti-glare film composition

[0057] Dissolve 10g of PVB in 150mL of absolute ethanol, stir well, then add 0.1g of the silica particles prepared in step 1) to the transparent solution;

[0058] 3) Preparation of anti-glare film: apply the composition solution prepared in step 2) on the washed glass slide by pulling method;

[0059] 4) Place the slides obtained in step 3) in an oven at 70°C and dry overnight.

Embodiment 2

[0061] At room temperature, add 8 mL of ammonia water (25%~28%), 10 mL of H 2 0. 100 mL of absolute ethanol, after mixing evenly, drop 15 mL of tetraethyl orthosilicate / 100 mL of absolute ethanol solution at 5 mL / min, centrifuge after 4 hours of reaction, wash with water 3 times, and dry at 70° C. Silica particles (such as Figure 10 ); then by using the same method as in Example 1 to prepare a composition for an anti-glare film, and then use the composition to prepare an anti-glare film.

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Abstract

The invention relates to a composition for an anti-glaring film. The composition comprises an inorganic particle with the average surface roughness being 0.01-3 mu m, an adhesive resin and solvent. The inorganic particle can be synthesized in one step by using material monomers or prepared by self-assembling inorganic particles with small particle size, wherein the surface roughness can be easily controlled. The anti-glaring film prepared from the composition has a stable anti-glaring effect and favorable image definition, and can be applied in the fields of flat panel displays, glass curtain walls and car lights with high resolution.

Description

technical field [0001] The invention relates to the field of an anti-glare film, in particular to a composition of an anti-glare film. Background technique [0002] Glare refers to the visual condition manifested by annoyance, discomfort or loss of vision caused by lighting in the field of vision that is far greater than the eyes can adapt to (the definition of glare by the Illuminating Engineering Society of North America in 1984). It often occurs in image generating devices such as plasma display (PDP), organic or inorganic electroluminescence display (ELD), field emission display (FED) or liquid crystal display (LCD), glass interface such as glass curtain wall, automobile headlight, etc. LED lighting device, etc. When exposed to external light such as fluorescent light or sunlight, the reflected light on the surface of this type of device will cause blurred images, halos, flares, etc., and cause excessive fatigue to the human eye and endanger human health. [0003] In o...

Claims

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Application Information

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IPC IPC(8): C09D129/14C09D169/00C09D123/12C09D139/06C09D7/12
Inventor 黄惠华储成义孙爱华李勇许高杰
Owner 上海西源新能源技术有限公司
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