Radiation sensitive composition and color filter for forming coloration layer

A sensitive, radiation-based technology, applied to photosensitive materials used in optomechanical equipment, nonlinear optics, instruments, etc., can solve problems such as stripes, adhesion, and longer time in the direction of travel

Active Publication Date: 2012-07-18
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the slit-rotary method and the non-rotary method are used for coating using a slit nozzle, there are problems in applicability and productivity.
That is, contamination of the slit nozzle by the radiation-sensitive composition used to form the colored layer is unavoidable, so a washing process of the slit nozzle is necessary.
In this washing process, the main solvent of the radiation-sensitive composition used to form the colored layer is usually used to wash the slit nozzle, but if the solubility of the main solvent is low, the radiation used to form the colored layer remaining in the nozzle part The sensitive composition becomes raised and remains, which causes the following problems: when the radiation-sensitive composition for forming the colored layer is coated on the substrate, streaks are generated with respect to the direction of travel of the nozzle; The problem that the dried matter of the radiation-sensitive composition falls and adheres to the substrate, forming defects and lowering the yield
[0004] On the other hand, by using a high-boiling-point solvent together in the radiation-sensitive composition for forming the colored layer, the generation of dry matter can be suppressed, but it is difficult to fully evaporate, and the yield will be caused by sticking and the time for vacuum baking will become longer. reduce
Moreover, due to the selection of the type of high boiling point solvent and the difference in the amount of addition, in the vacuum baking process after coating the radiation-sensitive composition for forming the colored layer, the tiny bubbles contained in the composition will appear on the surface of the coating film when the solvent evaporates. , there is also the problem of remaining as crater-like defects (hereinafter referred to as "bumping holes") directly after drying

Method used

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  • Radiation sensitive composition and color filter for forming coloration layer
  • Radiation sensitive composition and color filter for forming coloration layer
  • Radiation sensitive composition and color filter for forming coloration layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0224] Process 15 parts by weight of the mixture of C.I. Pigment Red 254 / C.I. Pigment Red 177=80 / 20 (weight ratio) as (A) coloring agent, 4 parts by weight (converted into solid content) as Disperbyk-2001 of dispersant by ball mill 6 parts by weight of methacrylic acid / N-phenylmaleimide / styrene / benzyl methacrylate copolymer as (B) alkali-soluble resin (copolymerization weight ratio=20 / 30 / 20 / 30, Mw =9,500, Mn=5,000) and 75 parts by weight of propylene glycol monomethyl ether acetate as a solvent for (E) to prepare a predispersion (R1).

[0225] Next, mix 100 parts by weight of the pre-dispersion (R1), 5 parts by weight of methacrylic acid / succinic acid mono(2-methacryloyloxyethyl) ester / N-phenyl Maleimide / styrene / benzyl methacrylate copolymer (copolymerization weight ratio=25 / 10 / 30 / 20 / 15, Mw=12,000, Mn=6,500), 10 parts by weight as (C) multifunctional dipentaerythritol hexaacrylate as a neutral monomer, 5 parts by weight of 2-methyl-(4-methylthiophenyl)-2-morpholino-1-acetone-...

Embodiment 2

[0239] In Example 1, except relative to 100 parts by weight of the predispersion liquid (R1), the added (E) solvent was changed to 50 parts by weight of dipropylene glycol dimethyl ether and 125 parts by weight of 3-ethoxy ethyl propionate Except for the ester, the same operation as in Example 1 was performed to prepare and evaluate a composition (R1-2) for forming a colored layer. The evaluation results are shown in Table 1.

Embodiment 3

[0241] In Example 1, except relative to 100 parts by weight of the predispersion liquid (R1), the added (E) solvent was changed to 50 parts by weight of dipropylene glycol dimethyl ether, 50 parts by weight of propylene glycol monomethyl ether acetate, Except 25 parts by weight of diethylene glycol methyl ethyl ether and 3-methoxybutyl acetate of 50 parts by weight, carry out identical operation with embodiment 1, prepare the composition (R1-3) that is used to form colored layer, and Make an evaluation. The evaluation results are shown in Table 1.

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Abstract

A radiation sensitive composition comprises of colorant, alkali - soluble resin, multi-functional monomers, polymerization initiator and solvent. The solvent includes double third glycol dim ethyl that accounts for 0.05 to 40 percent of the weight of the solvent and it can be used for forming a color layer. The dry agent solvent, forming in the narrow nozzle of the composition dissolving quite well and it does not bring a sudden boiling hole.

Description

technical field [0001] The present invention relates to a radiation-sensitive composition for forming a colored layer, a method for forming a color filter, a color filter, and a color liquid crystal display panel. In more detail, it relates to radiation sensitivity for the formation of pixels and / or black matrices as colored layers useful in the manufacture of color filters for transmissive or reflective color liquid crystal display devices, color camera tube elements, etc. A composition, a method for forming a color filter using the radiation-sensitive composition, a color filter having a colored layer formed from the radiation-sensitive composition, and a color liquid crystal display panel having the color filter. Background technique [0002] At present, when using a radiation-sensitive composition for forming a colored layer to prepare a color filter, the method for obtaining pixels of various colors is usually to form a color filter on a substrate or a substrate on whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/20G02B5/20G02F1/1335
CPCG02B5/20G03F7/0007G03F7/0048G03F7/028
Inventor 服部达哉河本达庆荒井雅史小林和博
Owner JSR CORPORATIOON
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