Hardcoat film, production method of hardcoat film, antireflection film, polarizing plate and display device

Inactive Publication Date: 2010-02-04
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0008]The technique of JP-A-2005-107005 can improve the interference unevenness, but the adherence between the intermediate layer and the cellulose acylate film is sometimes reduced. Also, since an intermediate layer is provided, one coating step is increased from the number of coatings in conventional techniques and the productivity decreases.

Problems solved by technology

Also, since an intermediate layer is provided, one coating step is increased from the number of coatings in conventional techniques and the productivity decreases.

Method used

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  • Hardcoat film, production method of hardcoat film, antireflection film, polarizing plate and display device
  • Hardcoat film, production method of hardcoat film, antireflection film, polarizing plate and display device
  • Hardcoat film, production method of hardcoat film, antireflection film, polarizing plate and display device

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Example

[0047]The best mode for carrying out the present invention is described in detail below, but the present invention is not limited thereto.

[0048]The hardcoat film of the present invention is a hardcoat film comprising a cellulose acylate film composed of at least a base layer and a surface layer and having a hardcoat layer on the surface layer side, wherein the surface layer contains an inorganic oxide fine particle and a cellulose acylate, the refractive index layer of the surface layer is from 1.49 to 1.56, the average film thickness of the surface layer is from 50 to 130 nm, and assuming that the refractive index of the hardcoat layer is nH, the refractive index of the surface layer is nS and the refractive index of the cellulose acylate film other than the surface layer is nC, the relationship of the following formula (I) is satisfied:

0.98nH×nC)1 / 2 / nS<1.02  Formula (I):

[0049]The production method of a hardcoat film of the present invention is a method for producing a hardcoat

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Abstract

A hardcoat film is provided, the hardcoat film including: a cellulose acylate film containing at least a base layer and a surface layer; and a hardcoat layer disposed at a surface layer side of the cellulose acylate film, wherein the surface layer contains inorganic oxide fine particles and a cellulose acylate, the surface layer has a refractive index of from 1.49 to 1.56 and an average film thickness of from 50 to 130 nm, and the hardcoat film satisfies formula (I):
0.98<(nH×nC)1/2/nS<1.02  Formula (I)
where nH represents a refractive index of the hardcoat layer; nS represents a refractive index of the surface layer; and nC represents a refractive index of the cellulose acylate film other than the surface layer.

Description

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Claims

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Application Information

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Owner FUJIFILM CORP
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