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Photosensitive resin composition and colour filter formed by same and liquid crystal display assembly containing colour filter

A color filter, photosensitive resin technology, used in filters, optics, optomechanical equipment, etc.

Inactive Publication Date: 2012-11-28
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the photosensitive resin composition prepared by using the halogenated phthalocyanine compound containing zinc as the central metal as the coloring pigment, when using generally known light During initiator, the benzophenone (benzophenone) disclosed in Japanese Patent Application Publication No. 2009-222752 is the photoinitiator or the Japanese Patent Application Publication No. 2009-198751. Photoinitiators, all of which have problems such as increased pigment aggregation of the photosensitive resin composition, poor developability during development, and undercutting of the formed pattern after development.

Method used

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  • Photosensitive resin composition and colour filter formed by same and liquid crystal display assembly containing colour filter
  • Photosensitive resin composition and colour filter formed by same and liquid crystal display assembly containing colour filter
  • Photosensitive resin composition and colour filter formed by same and liquid crystal display assembly containing colour filter

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example A-1

[0116] A nitrogen inlet, agitator, heater, condenser and thermometer are arranged on a four-necked conical flask with a capacity of 1000 milliliters, and nitrogen is introduced and the feed composition is added according to the amount shown in Table 1. The feed composition includes : 2-methacryloylethoxysuccinate monomer (hereinafter referred to as HOMS) 40 parts by weight, methyl acrylate monomer (hereinafter referred to as MA) 10 parts by weight, styrene monomer (hereinafter referred to as SM) 15 parts by weight Parts, 30 parts by weight of benzyl methacrylate monomer (hereinafter referred to as BzMA), 5 parts by weight of 2-hydroxyethyl methacrylate (hereinafter referred to as HEMA), and solvent 3-ethoxy ethyl propionate (hereinafter referred to as EEP) 200 parts by weight. Wherein, the feeding mode of the monomer mixture is continuous addition.

[0117] When the contents of the four-necked conical flask were stirred, the temperature of the oil bath was raised to 100°C, an...

Synthetic example A-2～A-3

[0120] The operation method is the same as that of Synthesis Example A-1, except that the type and mixing amount of monomers for polymerization are changed. The formula and reaction conditions are shown in Table 1.

Synthetic example

[0122] Synthesis example of halogenated phthalocyanine compound (E-1)

[0123] Set nitrogen inlet, agitator, heater, condenser and thermometer on a four-necked conical flask with a capacity of 500 ml, and 25.0 g of 4,5-dichlorophthalic anhydride, 24.2 g of urea, and ammonium molybdate tetrahydrate Add 0.14 g of the compound and 50 ml of methylnaphthalene, and then add 50 ml of methylnaphthalene solution containing 5.17 g of gallium trichloride. React at a temperature of 190-200° C. for 5 hours under a nitrogen atmosphere. After the reaction, the precipitate was obtained by filtration, washed according to the order of use of methanol, NMP, and methanol, and dried to obtain the halogenated phthalocyanine compound E-1-1 represented by the structural formula (2).

[0124] Structural formula (2)

[0125] [Example and Comparative Example of Photosensitive Resin Composition]

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Abstract

The invention relates to a photosensitive resin composition used for a colour filter of a liquid crystal display, the colour filter which is provided with a pixel layer formed by the composition and a liquid crystal display assembly containing the colour filter, in particular to a photosensitive resin composition which has less agglutinated pigment and good developing property and is used for a green pixel of a non-undercut colour filter of a pattern formed by developing. The composition comprises alkali-containing soluble resin (A), an ethylene unsaturated group-containing compound (B), a photoinitiator (C), an organic solvent (D) and a pigment (E), wherein the pigment (E) contains halogenated phthalocyanine (E-1) shown as a structural formula (I) (described in specification).

Description

technical field [0001] The invention relates to a photosensitive resin composition for a color filter of a liquid crystal display, a color filter having a pixel layer formed by the composition, and a liquid crystal display assembly including the color filter. In particular, to provide a photosensitive resin composition for a green pixel of a color filter with reduced pigment aggregation, good developability during development, and no undercut in the pattern formed after development. Background technique [0002] At present, color filters have been widely used in application fields such as color liquid crystal displays, color facsimile machines, and color cameras. As the market demand for imaging equipment such as color liquid crystal displays is expanding day by day, the production technology of color filters is also tending to be diversified. [0003] Usually, the color filter can be made by forming red, green, blue and other pixels on a transparent glass substrate by dye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/027G02B5/20G02F1/1335
Inventor 许荣宾林伯宣
Owner CHI MEI CORP