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Antireflection film

A technology of anti-reflection film and refractive index, applied in anti-reflection coatings, coatings, instruments, etc., can solve the problems of limited substrate size, high production cost, unsuitable for continuous production, etc.

Active Publication Date: 2010-07-21
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This dry coating method has the disadvantages of limited substrate size, unsuitability for continuous production, and high production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Dipentaerythritol hexaacrylate and isocyanuric acid EO modified diacrylate and dimethyloltricyclodecane diacrylate, antimony pentoxide, initiator (1-hydroxy-cyclohexyl-phenyl ketone) were dissolved in as A coating liquid for a high refractive index layer was prepared using isopropanol as a solvent having a solid content of 40% by weight.

[0096] It should be noted that the solid content refers to substances other than the solvent in the coating liquid, and here refers to photopolymerizable prepolymers such as dipentaerythritol hexaacrylate, antimony pentoxide, and an initiator.

[0097] The coating solution for the high refractive index layer was coated on the surface of a triacetyl cellulose film (film thickness 80 μm) of the transparent substrate 11 by the gravure method so that the dry film thickness became 2 μm, and dried in an oven at 80° C. for 1 minute and 30 seconds. Thereafter, a 160W high-pressure mercury lamp was irradiated from a distance of 18 cm for 3 sec...

Embodiment 2

[0104] In the same method as in Example 1 above, except that the content of the hollow silica particles in the low-refractive index coating agent was changed from 40% by weight to 50% by weight, and the content of the matrix was changed from 50.5% by weight to 40.5% by weight, The anti-reflection film of Example 2 was produced under the conditions.

Embodiment 3

[0106] In the same method as in Example 1 above, except that the content of the hollow silica particles of the low-refractive index coating agent was changed from 40% by weight to 60% by weight, and the content of the matrix was changed from 50.5% by weight to 30.5% by weight, The anti-reflection film of Example 3 was produced under the conditions.

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Abstract

Disclosed is an antireflection film having high antifouling property. Specifically disclosed is an antireflection film (10) comprising a transparent base (11), a high refractive index layer (12) and a low refractive index layer (15). The low refractive index layer (15) is made of a cured product of a polymerizable composition which contains hollow fine particles such as hollow silica particles, a modified silicone compound, and a second resin component such as a polyfunctional (meth)acrylate.

Description

technical field [0001] The present invention relates to an antireflection film capable of preventing or reducing reflection. Background technique [0002] In image display devices such as CRT, PDP or LCD, anti-reflection film is generally configured on the display in order to prevent the contrast reduction or image mapping caused by the reflection of ambient light, and to reduce the surface reflectivity of the display by using the principle of optical interference. most superficially. [0003] In recent years, opportunities for using various displays outdoors tend to increase. Therefore, it is required to further improve the display quality and to be able to clearly recognize the displayed image. [0004] In order to meet these requirements, the following Patent Document 1 and Patent Document 2 show that a coating layer containing transparent fine particles is formed on the surface of a transparent film substrate, and ambient light is diffusely reflected by the concave-con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11B32B7/02B32B27/00G02B1/10G02F1/1335G09F9/00G02B1/111G02B1/14G02B1/18
CPCG02B1/111Y10T428/249974Y10T428/249971C09D5/006G02F1/133502C08J2367/02
Inventor 小堀重人挂札郁夫
Owner DEXERIALS CORP
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