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Anti-reflection layer and Anti-mirroring layer-attached polarizing plate and manufacturing method thereof

A technology of anti-reflection layer and manufacturing method, which is applied in polarizing elements, coatings, optics, etc., can solve the problems of easy generation of wrinkles and easy peeling, and achieve the effect of inhibiting peeling and wrinkles

Active Publication Date: 2018-10-09
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an anti-reflection layer has the problem that it is easy to peel off in a high-temperature and high-humidity environment, and it is easy to generate wrinkles.

Method used

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  • Anti-reflection layer and Anti-mirroring layer-attached polarizing plate and manufacturing method thereof
  • Anti-reflection layer and Anti-mirroring layer-attached polarizing plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] 1. Production of polarizer (polarizer laminate)

[0111] As the resin substrate, an amorphous isophthalic acid copolymer polyethylene terephthalate (IPA copolymer PET) film (thickness: 100 μm) having a water absorption rate of 0.75% and a Tg of 75° C. was used. ). A corona treatment was performed on one side of the base material, and on the corona treated side, at 25°C, a ratio of 9:1 containing polyvinyl alcohol (polymerization degree of 4200, saponification degree of 99.2 mol%) and acetyl group was applied. Aqueous solution of acetyl-modified PVA (polymerization degree of 1200, acetoacetyl modification degree of 4.6%, saponification degree of 99.0 mol% or more, manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "GOHSEFIMER Z200") and dried to form A PVA-based resin layer having a thickness of 11 μm was used to prepare a laminate.

[0112] The obtained laminate was subjected to free-end uniaxial stretching (air-assisted stretching) to 2.0 times ...

Embodiment 2

[0126] Other than changing the conditions of the humidification treatment of the antireflection laminate to "40°C, 92% RH, and 24 hours" and setting the moisture content of the antireflection layer base material at the time of lamination to 3.1% by weight, the same In Example 1, a polarizing plate with an antireflection layer and an antireflection layer was produced in the same manner. The obtained polarizing plate was used for the evaluation similar to Example 1. The results are shown in Table 1.

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Abstract

The present invention provides a polarizing plate with an anti-reflection layer and an anti-mirroring layer which suppresses peeling and wrinkling of the antireflection layer even in a high-temperature and high-humidity environment, and a method for producing the same. The polarizing plate with an anti-reflection layer and the anti-mirroring layer includes a polarizer having a polarizer and a protective layer provided on one side of the polarizer, and an oriented solidified layer of a liquid crystal compound bonded to the protective layer. That is, the anti-reflection layer, the substrate forthe anti-mirroring layer, the substrate for the anti-mirroring layer bonded to the substrate for the anti-reflection layer, and the anti-reflection layer directly formed on the substrate for the anti-reflection layer. In the embodiment of the present invention, the moisture content of the substrate for an antireflection layer is 2.0% by weight or more.

Description

technical field [0001] The present invention relates to a polarizer with an antireflection layer and an antireflection layer and a method for producing the same. Background technique [0002] In an image display device (eg, a liquid crystal display device, an organic EL display device, a quantum dot display device), a polarizing plate is often arranged on at least one side of the display unit due to its image forming method. In order to prevent the reflection of external light into the display screen of the polarizing plate arranged on the visible side of the image display device, it is known to provide an anti-reflection layer (by performing anti-reflection treatment) on the visible side of the polarizer, and / or to provide an anti-reflection layer. Floor. The anti-reflection layer is typically a matrix comprising a resin or a binder and particles dispersed in the matrix. However, in recent years, along with the demand for thinning of image display devices, the thinning of...

Claims

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Application Information

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IPC IPC(8): G02B5/30G02B1/11
CPCG02B1/11G02B1/14G02B5/3016G02B5/305G02B5/3083C08L29/04
Inventor 八重樫将宽木村真规子望月政和伊崎章典北村吉绍
Owner NITTO DENKO CORP
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