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Anti-glare film, method for producing same, and use thereof

An anti-glare film and strength technology, which is applied in the manufacture of semiconductor/solid-state devices, instruments, electrical components, etc., can solve problems such as insufficient anti-glare properties, achieve the effects of improving transparency, reducing yellowness, and ensuring anti-glare properties

Pending Publication Date: 2020-07-17
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the optical sheet obtained by this method may have insufficient anti-glare properties depending on the application.

Method used

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  • Anti-glare film, method for producing same, and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0156] 15.0 parts by weight of an acrylic polymer having a polymerizable group, 3 parts by weight of cellulose acetate propionate, 150 parts by weight of an acrylic ultraviolet curable compound containing nano-silica, and 1 part by weight of silicone acrylate were dissolved in A mixed solvent of 101 parts by weight of methyl ethyl ketone and 24 parts by weight of 1-butanol was used to prepare a solution.

[0157] After casting this solution onto a PET film using a wire bar (#20), it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm.

[0158] Then, the coating is irradiated with ultraviolet light for about 5 seconds by a high-pressure mercury lamp (the accumulated light amount is about 100mJ / cm 2 irradiation, the same below), the coating was cured by ultraviolet rays to obtain an anti-glare film.

Embodiment 2

[0160] 12.5 parts by weight of an acrylic polymer having a polymerizable group, 4 parts by weight of cellulose acetate propionate, 150 parts by weight of an acrylic ultraviolet curable compound containing nano-silica, and 1 part by weight of silicone acrylate are dissolved in methyl ethyl ketone A mixed solvent of 81 parts by weight, 24 parts by weight of 1-butanol, and 13 parts by weight of 1-methoxy-2-propanol was used to prepare a solution.

[0161] After casting this solution onto a PET film using a wire bar (#20), it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm.

[0162] Then, the coating was irradiated with ultraviolet rays for about 5 seconds by a high-pressure mercury lamp, and the coating was cured by ultraviolet rays to obtain an anti-glare film.

Embodiment 3

[0164] 45.6 parts by weight of an acrylic polymer having a polymerizable group, 2.3 parts by weight of cellulose acetate propionate, 70.7 parts by weight of urethane acrylate A, 8.2 parts by weight of dipentaerythritol hexaacrylate, and 0.6 parts by weight of silicone acrylate Parts, 0.1 parts by weight of fluorine compound B having a polymerizable group, 1 part by weight of photoinitiator A, and 1 part by weight of photoinitiator B are dissolved in 128 parts by weight of methyl ethyl ketone, 25 parts by weight of 1-butanol and 31 parts by weight of cyclohexanone mixed solvents to prepare solutions.

[0165]After casting this solution onto a TAC film using a wire bar (#16), it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 7 μm.

[0166] Then, the coating was irradiated with ultraviolet rays for about 5 seconds by a high-pressure mercury lamp, and the coating was cured by ultraviolet rays to obta...

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Abstract

According to the present invention, an anti-glare film is prepared in which the ratio R / V of diffusion specular reflection intensity R to total diffusion reflection intensity V is 0.01-0.12, and the absolute value of the chromaticity b* of transmitted light is 3 or less. The anti-glare film comprises: a transparent substrate layer; and an anti-glare layer formed on at least one surface of the transparent substrate layer, wherein the anti-glare layer may be a cured product of a curable composition containing one or more polymer components and one or more curable resin precursor components, andin particular, at least two components selected from among the polymer components and the curable resin precursor components may be phase-separated by wet spinodal decomposition. This anti-glare filmcan have both non-coloring properties and anti-glare properties.

Description

technical field [0001] The present invention relates to an antiglare film usable for various display devices such as a liquid crystal display (LCD) and an organic electroluminescence (EL) display, as well as its production method and use. Background technique [0002] Anti-glare films have been widely used as films for improving visibility by preventing external scenes from being reflected on the display surfaces of image display devices such as LCDs and organic EL displays. As the optical characteristics required for the anti-glare film, in addition to the function of improving the anti-glare property by having a high haze, there are also high transparency (total light transmittance) and imparting a neutral white color to the visible side. Sensitive rather than yellowish, reddish color light so as to improve the characteristics of visual recognition. In order to exhibit such a function, the following method is known in the past for the anti-glare film: by applying a mixtur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02B32B7/02G09F9/00B32B7/023H01L51/50H01L27/32G02F1/1335H05B33/02H05B33/10
CPCB32B7/02B32B7/023H05B33/02H05B33/10G09F9/00G02F1/133502G02B1/118G02B1/111H10K59/00H10K50/86
Inventor 菅原庆峰林正树
Owner DAICEL CHEM IND LTD
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