Hard-coated antiglare film and method of manufacturing the same

A manufacturing method and anti-glare technology, applied in the direction of nonlinear optics, optics, instruments, etc., can solve the problem of not being able to obtain sufficient hardness, achieve good anti-glare effect, high hardness, and prevent the reflection of external light, etc. Effect

Inactive Publication Date: 2006-06-28
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The purpose of the invention described in JP-A-2001-264508 is to improve scratch resistance, anti-glare properties, etc., but the problem is that sufficient hardness cannot be obtained

Method used

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  • Hard-coated antiglare film and method of manufacturing the same
  • Hard-coated antiglare film and method of manufacturing the same
  • Hard-coated antiglare film and method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0173] 100 parts of urethane acrylate composed of pentaerythritol-based acrylate and hydrogenated xylene diisocyanate are blended as urethane acrylate (hereinafter, component A), as polyol (meth)acrylate (hereinafter, B) Component) 49 parts of dipentaerythritol hexaacrylate (hereinafter, component B1 (monomer)), 24 parts of pentaerythritol triacrylate (hereinafter, component B2 (monomer)), and pentaerythritol tetraacrylate (hereinafter, component B3 (monomer) )) 41 parts, as a (meth)acrylic polymer having an alkyl group containing 2 or more hydroxyl groups (hereinafter, component C) (methyl) having 2-hydroxyethyl and 2,3-dihydroxypropyl 59 parts of acrylic polymer (manufactured by Dainippon Ink Chemical Industry Co., Ltd., trade name: PC1097). Furthermore, through a mixed solvent with a mixing ratio of butyl acetate and ethyl acetate of 55:45 (the ratio of ethyl acetate to the total solvent is 45%), the PMMA particles with an average particle size of 10 μm relative to the total re...

Embodiment 2

[0176] In this example, except that the addition amount of PMMA particles was changed to 15 parts, the same method as in Example 1 was used to produce an anti-glare hard coating film.

Embodiment 3

[0178] In this example, 30 parts of PMMA particles (refractive index: 1.49) with an average particle diameter of 15 μm were added, and the solid content concentration was changed to 35%. The same method as in Example 1 was used except that Glare hard coating film.

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Abstract

The invention provides an anti-glare hard-coated film (4), which is an anti-glare hard-coated film having a hard coating (2) containing particles (3) on at least one surface of a transparent film substrate (1) (4), the film thickness of the hard coat layer (2) is not less than 15 μm and not more than 30 μm, and the average particle size of the particles (3) is not less than 30% and not more than 75% of the film thickness of the hard coat layer (2). The θa of the concavo-convex shape formed by the microparticles (3) according to JIS B 0601 is 0.4° or more and 1.5° or less. Thereby, an anti-glare hard-coated film excellent in hardness, scratch resistance, and anti-glare property, its production method, an optical element using the same, and an image display device equipped with the same can be provided.

Description

Technical field [0001] The present invention relates to an anti-glare hard coat film having a hard coat layer provided on at least one surface of a transparent film substrate, and a method for producing the same. In more detail, it relates to image display devices that can be suitably used for optical elements such as polarizers, CRT (Cathode Ray Tube), liquid crystal displays (LCD), plasma displays (PDP), and electroluminescence displays (ELD). Hard coating film and its manufacturing method. Background technique [0002] LCD is one of the various image display devices, but with technological innovations related to LCD’s higher field of view, higher definition, high-speed response, color reproducibility, etc., the use of LCD is also changing from notebook-type personal The computer or monitor changes to the TV. The basic structure of LCD is that flat glass substrates each equipped with transparent electrodes are arranged facing each other through partitions so as to become gaps a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/14G02B5/02G02B5/30G02F1/1335
Inventor 鹰尾宽行滨本大介高田胜则楠本诚一木村雄一重松崇之
Owner NITTO DENKO CORP
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