Radiation sensitive composition for forming a colored layer and color filter

A radiation and sensitivity technology, applied in the field of radiation-sensitive compositions, can solve the problems of reduced productivity and prolonged time

Active Publication Date: 2012-04-25
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, by using a high-boiling-point solvent in combination with the radiation-sensitive composition for forming the colored layer, the appearance of dryness can be suppressed, but it is difficult to evaporate sufficiently, and the appearance of stickiness and the time for vacuum baking (vacuum baking) are prolonged lead to a decrease in productivity
In addition, there is also the following problem: due to the selection and addition of different high-boiling point solvents, through the process of vacuum baking after coating the radiation-sensitive composition for forming the colored layer, when the solvent evaporates, the composition contains Microscopic air bubbles appear on the surface of the coating film, and the original notch-shaped defects (hereinafter referred to as "bump holes") remain after drying.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0249] (A) 15 parts by weight of a mixture of C.I. Pigment Red 254 / C.I. Pigment Red 177=80 / 20 (weight ratio) as a colorant, 4 parts by weight of Disperbyk-2001 (in terms of solid content) as a dispersant, and (B) Methacrylic acid / N-phenylmaleimide / styrene / benzyl methacrylate copolymer (copolymerization weight ratio=20 / 30 / 20 / 30, Mw=9500, Mn=5000) 6 parts by weight and 75 parts by weight of propylene glycol monomethyl ether acetate as a solvent (E) were treated with a sand mill to prepare a pigment dispersion (R1).

[0250] Next, 100 parts by weight of the pigment dispersion liquid (R1), methacrylic acid / succinic acid mono[2-methacryloyloxyethyl] ester / N-phenylmaleic acid as (B) alkali-soluble resin Imide / styrene / benzyl (meth)acrylate copolymer (copolymerization weight ratio=25 / 10 / 30 / 20 / 15, Mw=12000, Mn6500) 5 parts by weight, as (C) polyfunctional monomer 10 parts by weight of dipentaerythritol hexaacrylate, 5 parts by weight of 2-methyl-(4-methylthiophenyl) 2-morpholino-1-pro...

Embodiment 2

[0264] In addition to changing the (E) solvent added to 100 parts by weight of the pigment dispersion (R1) in the examples into 50 parts by weight (20% by weight) of cyclohexyl acetate and 125 parts by weight of ethyl 3-ethoxy propionate ( 50% by weight) except that it was carried out in the same manner as in Example 1 to prepare a composition for forming a colored layer (R1-2), and then evaluate it. Moreover, the composition for colored layer formation (R1-2) contained 75 weight part (30 weight%) of propylene glycol monomethyl ether acetate further. The evaluation results are shown in Table 1.

Embodiment 3

[0266] In addition to changing the (E) solvent added with respect to 100 parts by weight of the pigment dispersion (R1) in Example 1 into 50 parts by weight (20% by weight) of cyclohexyl acetate, 50 parts by weight of propylene glycol monomethyl ether acetate ( 50 weight percent), diethylene glycol methyl ethyl ether 25 weight parts (10 weight %) and 3-methoxybutyl acetate 50 weight parts (20 weight %), operate in the same way as Example 1 , A composition for forming a colored layer (R1-3) was prepared and evaluated. The evaluation results are shown in Table 1.

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Abstract

A radiation sensitive composition used for forming a dyed layer, comprises (A) a colorant, (B) alkali-dissoluble resin, (C) a polyfunctional monomer, (D) a photopolymerization initiator and (E) a solvent, the (E) the solvent contains 5-40% cyclohexyl acetate by weight. A solvent of a dry matter generated at a slot nozzle portion by the composition has a higt re-dissolubility, and has little boiling holes.

Description

technical field [0001] The present invention relates to a radiation-sensitive composition for forming a colored layer, a method for forming the colored layer, a color filter, and a color liquid crystal display element. Specifically, it relates to a radiation-sensitive composition used for forming a colored layer useful for color filters used in the manufacture of transmissive or reflective color liquid crystal display devices, color pickup tube elements, and the like, and the use of the radiation-sensitive composition A method for forming a colored layer, a color filter provided with a colored layer formed from the radiation-sensitive composition, and a color liquid crystal display element having the color filter. Background technique [0002] It is conventionally known to obtain pixels of each color by using a radiation-sensitive composition for forming a colored layer to manufacture a color filter, usually, on a substrate or on a substrate on which a light-shielding layer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/16G03F7/20G03F7/40G02B5/23G02F1/1335G02B5/20G03F7/027
CPCG02B5/20G03F7/0007G03F7/0045G03F7/0048G03F7/032
Inventor 小原浩挥平野浩二成濑真吾
Owner JSR CORPORATIOON
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