Hard-coated antiglare film, and polarizing plate and image display including the same

An anti-glare, hard coating technology, applied in identification devices, polarizing elements, coatings, etc., can solve the problems of poor anti-glare, glare, and reduced image sharpness, and achieve anti-glare, anti-glare and The effect of excellent image sharpness and excellent display performance

Inactive Publication Date: 2007-12-19
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, it cannot be considered that the problems of image sharpness and glare prevention have been satisfactorily solved in these conventional antiglare hard coat films
That is, in order to obtain anti-glare properties, it is necessary for the surface of the hard coat to have a structure of increased concavo-convex shape to scatter light, but increased light scattering reduces image sharpness
In addition, reducing light scattering causes deterioration of anti-glare properties and problems of glare

Method used

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  • Hard-coated antiglare film, and polarizing plate and image display including the same
  • Hard-coated antiglare film, and polarizing plate and image display including the same
  • Hard-coated antiglare film, and polarizing plate and image display including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] A resin material (GRANDIC PC1097 (trade name), DAINIPPON INK ANDCHEMICALS, manufactured by INCORPORATED, solid concentration 66% by weight) was prepared. The resin material contains Component A, Component B, Component C, a photopolymerization initiator and a mixed solvent described below. Then add 10 parts by weight of PMMA particles (MX1000 (trade name), SOKEN CHEMICAL & ENGINEERING CO., LTD. manufacture, refractive index 1.49) and 0.1 parts by weight of the leveling agent (GRANDICPC-F479 (trade name) of weight average particle diameter 10 μ m ), DAINIPPON INK and CHEMICALS, manufactured by INCORPORATED), and mixed with 100 parts by weight of the solid content of the above resin material. The mixture was diluted with a solvent (ethyl acetate) so that the resulting solid concentration was 55% by weight. Thus, a material for forming an antiglare hard coat layer was produced. The material for forming an antiglare hard coat layer was applied onto a transparent plastic fi...

Embodiment 2

[0114] The target antiglare hard coat film was produced in the same manner as in Example 1 except that the part number of fine particles added was changed to 30 parts by weight relative to 100 parts by weight of the solid content of the resin raw material.

Embodiment 3

[0116] The target antiglare hard coat film was produced in the same manner as in Example 1 except that the part number of fine particles added was changed to 50 parts by weight relative to 100 parts by weight of the solid content of the resin raw material.

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Abstract

A hard-coated antiglare film is provided that is excellent in antiglare properties and image sharpness and that can prevent glare from occurring. The hard-coated antiglare film includes a transparent plastic film substrate and a hard-coating antiglare layer that is formed on at least one surface of the transparent plastic film substrate and that is formed of fine particles and a curable hard-coating resin. The hard-coating antiglare layer has a thickness in the range of 20 to 30 mum. The fine particles have a weight average particle size in the range of 7 to 15 mum. The difference obtained by subtracting the refractive index of the fine particles from that of the curable hard-coating resin that has been cured is in the range of -0.06 to -0.01 or 0.01 to 0.06.

Description

[0001] Cross References to Related Applications [0002] This application claims the priority of Japanese Patent Application No. 2006-166747 filed on June 15, 2006. The entire subject matter of said application is hereby incorporated by reference. technical field [0003] Generally, the present invention relates to an antiglare hard coat film, a polarizing plate including the antiglare hard coat film, and an image display device. Background technique [0004] With technological progress in recent years, liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescence displays (ELDs), etc. have been developed as image display devices in addition to conventional cathode ray tubes (CRTs), and has been practical. As technological innovations have been made to LCDs to provide wide viewing angles, high resolution, high responsiveness, good color reproducibility, etc., applications of LCDs have expanded from laptop personal computers and monitors to televisions. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/00B32B33/00B32B27/18C09D175/14C09D4/06C08J7/04G02B1/10C08J7/043C08J7/046G02B1/11G02B1/14G02B5/30G09F9/00
CPCC08J2433/12C08J7/042C08J2475/04C08J7/04G02B1/111C08J7/043C08J7/046G02B5/02G02F1/1335
Inventor 滨本大介鹰尾宽行木村雄一高田胜则楠本诚一重松崇之
Owner NITTO DENKO CORP
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