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Antireflection film, polarizing plate, and image display device

A technology of anti-reflection film and low-refractive index layer, which can be used in identification devices, optics, optical components, etc., to solve the problems of reduced film strength or interface adhesion, reduced scratch resistance, etc., to achieve scratch resistance. Excellent effect, high production applicability, excellent antifouling performance

Inactive Publication Date: 2009-10-21
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in all these measures, the film strength or the adhesion at the interface is lowered so that the scratch resistance tends to be lowered

Method used

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  • Antireflection film, polarizing plate, and image display device
  • Antireflection film, polarizing plate, and image display device
  • Antireflection film, polarizing plate, and image display device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0232] In the preparation of the films of the present invention, photoinitiators and thermal initiators can be used together.

[0233]

[0234] Examples of photoradical polymerization initiators include acetophenone, benzophenone, benzophenone, phosphine oxide, ketal, anthraquinone, thioxanthone, azo compound, peroxide (for example, in JP-A -those described in 2001-139663), 2,3-dialkyl diketone compounds, disulfides, fluoroamine compounds, aromatic sulfonium, lophine dimer, onium salts, borates, active esters, active Halides, inorganic complexes, and coumarins.

[0235] Examples of acetophenone include 2,2-dimethoxyacetophenone, 2,2-diethoxyacetophenone, p-dimethylacetophenone, 1-hydroxy-dimethylphenylketone, 1 -Hydroxy-dimethyl-p-isopropylphenyl ketone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-4-methylthio-2-morpholinopropiophenone, 2-benzyl-2- Dimethylamino-1-(4-morpholinophenyl)butanone, 4-phenoxydichloroacetophenone, and 4-tert-butyl-dichloroacetophenone.

[0236] ...

Embodiment 1

[0816]

[0817] [Synthesis of Fluoropolymer]

Embodiment 1

[0818] Synthesis Example 1: Synthesis of Fluoropolymer P1

[0819] In an autoclave with an internal volume of 100 mL made of stainless steel and equipped with a stirrer, pour 40 mL of vinyl acetate, 14.7 g of hydroxyethyl vinyl ether (HEVE) and 0.55 g of dilauroyl peroxide, and remove The air inside the system was purged with nitrogen. In addition, 25 g of hexafluoropropylene (HFP) was added into the autoclave, and the temperature was raised to 65°C. When the temperature in the autoclave reaches 65°C, the pressure is 5.4kg / cm 2 . While keeping the temperature in the autoclave at 65°C, the reaction was continued for 8 hours, and when the pressure reached 3.2kg / cm 2 When , turn off the heat, then let it cool down.

[0820] When the internal temperature dropped to room temperature, unreacted monomers were removed, and the autoclave was opened, and the reaction solution was taken out. The obtained reaction solution was put into a large excess of hexane, the solvent...

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Abstract

An antireflection film comprising a support and a low-refractive-index layer prepared by coating a coating composition comprising: (A) a fluoropolymer whose main chain is made of carbon atoms only and contains at least one Polymerized units of a fluorine-containing vinyl monomer and at least one polymerized unit of a vinyl monomer containing a hydroxyl group, wherein, if there is no polysiloxane structure in the main chain of the polymer, the content of the polymerized units of a vinyl monomer containing a hydroxyl group exceeds 20 mole %; (B) a crosslinking agent capable of reacting with hydroxyl groups; and (C) a compound containing two or more (meth)acryloyl groups in one molecule.

Description

technical field [0001] The present invention relates to an antireflection film, a polarizing plate using the antireflection film, and an image display device using the antireflection film or the polarizer on the outermost surface of a display. Background technique [0002] Generally, in image displays such as cathode ray tube display devices (CRT), plasma displays, (PDP), electroluminescent displays (ELD), and liquid crystal display devices (LCD), in order to prevent a decrease in contrast due to reflection of external light Or image reflection, an anti-reflection film is placed on the outermost surface of the display to reduce reflection using the theory of optical interference. [0003] Generally, such an antireflection film can be prepared by forming a low-refractive index layer having a lower refractive index than the support and having an appropriate thickness on a support. In order to achieve a low refractive index, it is desirable to use as low a refractive index mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/11G02B5/30G09F9/00G02B1/111
Inventor 米山博之野吕正树冈本康裕
Owner FUJIFILM CORP