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Color filter, liquid crystal display components and color filter manufacturing method

A technology for a color filter and a manufacturing method, which are applied in the field of color filters and can solve the problems of deterioration of coloring patterns, poor reliability, and reduced display quality of liquid crystal display elements.

Active Publication Date: 2013-01-16
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, there is a problem in the coloring pattern formed using the conventional coloring composition containing the dye that the reliability is poor compared with the coloring pattern using the coloring composition containing the pigment.
[0031] First, fading of the color filter occurs, thereby impairing the superiority of the color characteristics in the characteristics of the color filter including the coloring pattern using the dye
[0032] Second, when the dye in the colored pattern is decomposed, there is a phenomenon that highly polar impurities are generated, and the impurities are dissolved into the liquid crystal in the liquid crystal panel to reduce the display quality of the liquid crystal display element
As for the heating in this hardening step, when there is a colored pattern formed using a colored composition containing a dye in the lower layer, there is a fear of causing deterioration of the colored pattern.

Method used

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  • Color filter, liquid crystal display components and color filter manufacturing method
  • Color filter, liquid crystal display components and color filter manufacturing method
  • Color filter, liquid crystal display components and color filter manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0773] [[I] Synthesis of Alkali Soluble Resin (IA)]

[0774] 5 parts by mass of 2,2'-azobis(2,4-dimethylvaleronitrile) and 220 parts by mass of diethylene glycol methyl ethyl ether were placed in a flask equipped with a condenser and a stirrer. Next, 18 mass parts of methacrylic acid as (I-1) compound, 14 mass parts of 2-methylglycidyl methacrylate and 20 mass parts of glycidyl methacrylate as (1-2) compound were charged. Parts, 10 parts by mass of styrene as (I-4) compound, tricyclic methacrylic acid [5.2.1.0 2，6 ] 23 parts by mass of decane-8-yl ester and 15 parts by mass of methyl methacrylate, after nitrogen substitution, the temperature of the solution was raised to 70° C. while gently stirring, and the temperature was maintained for 5 hours to perform polymerization. Thus, a solution containing the alkali-soluble resin (IA) as a copolymer was obtained. The solid content concentration of the obtained polymer solution was 31.5%, and the Mw of the alkali-soluble resin (IA...

example 2

[0776] [[I] Synthesis of alkali-soluble resin (IB)]

[0777] 4 mass parts of AIBN and 300 mass parts of diethylene glycol methyl ethyl ether are charged into a flask with a condenser tube and a stirrer, followed by 23 mass parts of methacrylic acid as (I-1) compound, as (I-4) 10 parts by mass of styrene, 32 parts by mass of benzyl methacrylate and 35 parts by mass of methyl methacrylate of the compound were further charged with 2.7 parts by mass of α-methylstyrene dimer, and stirred slowly while stirring The temperature of the solution was raised to 80° C., maintained at this temperature for 4 hours, then raised to 100° C., and polymerized at this temperature for 1 hour to obtain a solution containing a copolymer. The solid content concentration of the obtained polymer solution was 24.9%, and Mw was 12,500. Next, 1.1 parts by mass of tetrabutylammonium bromide and 0.05 parts by mass of 4-methoxyphenol as a polymerization inhibitor were added to the obtained solution containin...

example 3

[0779] [Preparation of coloring composition]

[0780] Ethylene oxide-modified dipentaerythritol hexaacrylate (II-1) as a polymerizable compound (II-1) and polyfunctional acrylic acid were mixed with 90 parts by mass of the alkali-soluble resin (IA) as a copolymer obtained in Example 1. A mixture of ester compounds (KAYARAD (registered trademark) DPHA-40H, Nippon Kayaku Co., Ltd.) (II-2) mixture (mixing ratio ((II-1) / (II-2)) = 4) 100 parts by mass, as [III] 2-methyl-1-(4-methylthienyl)-2-morpholinopropan-1-one (Irgacure 907, Ciba Specialty Chemical Co., Ltd.) of polymerization initiator (III-1) 25 Parts by mass, 100 parts by mass of red colorant (IV-1) containing red dye as [IV] colorant, pentaerythritol tetrakis(3-mercaptopropionate) ester (V-1) and 3- Mixture of ethyl sulfanilate (V-2) (mixing ratio ((V-1) / (V-2)=5)) 6 parts by mass, alkali-soluble resin obtained in Example 2 as another alkali-soluble resin (IB) 10 parts by mass. Next, cyclohexanone was used as a solvent, a...

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PUM

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Abstract

The present invention provides a low-temperature hardening of high reliability of color filter and a manufacturing method thereof, and uses the color filter and provides a liquid crystal display element. Color filter contains 20 shading pattern match to the membrane with protective film 8, in the shading pattern 6 contains dione keto pyrrole and pyrrole zinc pigments, halogenated phthalocyanine pigment, class three aryl methane dye and azo dye any protective film 8 by containing alkali soluble resin, and the type (1) or (2) of the type of radiation linear resin compound the sense of composition and form with the film to 12 is light to the processing of low polarity of the structure of the 12 deserves to go to the film. Use 20 and color filter manufacturing liquid crystal display element 1.

Description

technical field [0001] The invention relates to a color filter, a liquid crystal display element and a manufacturing method of the color filter. Background technique [0002] The liquid crystal display element includes a liquid crystal panel configured by sandwiching liquid crystal between a pair of substrates such as glass substrates. An alignment film may be provided on the surface of the substrate sandwiching the liquid crystal. The ability to control the alignment of liquid crystals has been imparted to the alignment film by using a chemically stable and high heat-resistant organic film such as polyimide, and rubbing in one direction with cloth such as nylon or polyester. friction treatment. [0003] Between a pair of substrates of a liquid crystal display element, spherical or rod-shaped spacers made of glass, alumina, or resin are arranged by spreading or the like to keep the thickness of the liquid crystal at a predetermined value of about 1 μm to 20 μm. In a liqui...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02F1/1335G02F1/1337G03F7/004G03F7/027
CPCC08F2/50C08F220/32C08G73/1025C08K5/0041C08L79/08C09B11/04C09B47/085C09B57/004C08F220/325G02B5/223G02F1/133516G02F1/133723
Inventor 一戸大吾米田英司
Owner JSR CORPORATIOON
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