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Anti-glare hard coat film and polarizing plate using the same

A hard coating, anti-glare technology, used in polarizing elements, coatings, instruments, etc., can solve the problems of reduced image clarity, poor visibility, and reduced black density, reducing fading or contrast. The effect of image clarity, appropriate anti-glare

Active Publication Date: 2015-11-25
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for the purpose of clearly seeing the image reflected from the screen, it is disadvantageous to set such an anti-glare hard coating.
The anti-glare hard coating has the property of scattering transmitted light due to its uneven surface, resulting in a decrease in image clarity and poor visibility
In addition, due to whitening called fading, the black density is reduced, and thus there is a problem of lowering the contrast; conversely, if the surface unevenness is reduced to improve image clarity and fading, the reflection of fluorescent lamps and external light cannot be prevented. question

Method used

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  • Anti-glare hard coat film and polarizing plate using the same
  • Anti-glare hard coat film and polarizing plate using the same
  • Anti-glare hard coat film and polarizing plate using the same

Examples

Experimental program
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preparation example Construction

[0074] (Preparation of hard coat layer forming material)

[0075] The hard coat forming material used in the present invention is added to an appropriate solvent in a predetermined ratio according to the above-mentioned active energy line-sensitive composition of component (A), organic fine particles of component (B), and Prepared by dissolving or dispersing the photopolymerization initiator used and various additive components such as antioxidant, ultraviolet absorber, silane coupling agent, light stabilizer, leveling agent, defoamer, etc.

[0076] As the solvent used at this time, for example, aliphatic hydrocarbons such as hexane and heptane, aromatic hydrocarbons such as toluene and xylene, halogenated hydrocarbons such as dichloromethane and dichloroethane, methanol, ethanol, propanol, butanol, Alcohols such as propylene glycol monomethyl ether, ketones such as acetone, methyl ethyl ketone, 2-pentanone, isophorone, and cyclohexanone, esters such as ethyl acetate and butyl a...

preparation example 1

[0148] Preparation Example 1 Coating Agent 1 for Hard Coat

[0149] 50 parts by mass of (A) active energy ray-sensitive type composition containing antistatic agent (compound containing quaternary ammonium base) hard coating agent [manufactured by Nippon Chemical Industry Co., Ltd., trade name "L80313", solid content Concentration 70% by mass, propylene glycol monomethyl ether 30% by mass] and 35 mass parts of hard coat agent not containing antistatic agent [Dainichi Seika Industry (Co., Ltd.) manufacture, trade name " SEIKABI MU EXF-01L (NS )", solid content concentration 100% by mass, active energy ray-curable compound containing reactive monomer and multifunctional acrylate 95% by mass, photopolymerization initiator 5% by mass], as (B) 4 mass % of spherical organic microparticles Parts of polystyrene-polymethyl methacrylate (PSt-PMMA) microparticles [Sekisui Chemical Industry (KK), average particle size 2.5 μm, refractive index 1.555], uniformly mixed with 90 parts by mass ...

preparation example 2

[0150] Preparation Example 2 Coating Agent 2 for Hard Coat

[0151] In addition to adding 4 parts by mass of polymethyl methacrylate (PMMA) particles as (B) spherical organic particles [manufactured by Soken Chemical Co., Ltd., average particle diameter 3 μm, refractive index 1.49], 90 parts by mass as a dilution solvent Except for propylene glycol monomethyl ether, in the same manner as in Preparation Example 1, a coating agent 2 for a hard coat layer having a solid content of about 41% by mass was prepared.

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PUM

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Abstract

The invention relates to an anti-dazzle hard film and a polarizer equipped with the hard film capable of avoiding the fading and the contrast descending. The anti-dazzle hard film is high in image definition. The anti-dazzle hard film is characterized in that the surface of a transparent plastic film is equipped with a hard coating formed with hard coating formation material. The hard coating formation material contains (A) active energy induction composition and (B) spherical organic particles. The total haze valve of the hard coating is smaller than 20%. The valve of "the total haze valve-internal haze valve" is within the range of -10 - +1%. The opposite side of the hard coating formation surface is attached with a polarizer so as to form a polarizer.

Description

technical field [0001] The present invention relates to an antiglare hard coat film and a polarizing plate using the hard coat film. More specifically, the present invention relates to an antiglare hard coat film provided with a hard coat layer containing organic particles, and to a polarizer using the antiglare hard coat film, wherein the hard coat film is formed by making the hard coat film The total fog value and "total fog value-internal fog value" are specified values, which can reduce fading and decrease in contrast, and have both high image clarity and appropriate anti-glare properties. Background technique [0002] In displays such as cathode ray tubes (CRTs), liquid crystal displays (LCDs), and plasma displays (PDPs), light is incident on the screen from the outside, and the light is reflected, making it difficult to see the displayed image. Therefore, it is becoming more and more important to solve the above problems. As one means for solving this problem, use of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/118G02B1/14G02B5/02G02B5/30C09D7/12B32B33/00B32B27/06
CPCB32B27/20C08L33/10G02B1/10G02B1/11G02B5/3041
Inventor 荒添铁也泉达矢所司悟
Owner LINTEC CORP