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Colored photosensitive resin composition

A technology of photosensitive resin and composition, which is applied in optics, optical components, optomechanical equipment, etc., can solve the problems of unsatisfactory ink repellency and achieve the effect of improving ink repellency

Active Publication Date: 2008-07-23
TOKYO OHKA KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, although the negative photosensitive resin composition described in the above-mentioned patent document 1 can maintain the ink repellency, the ink repellency itself is not satisfactory, and those skilled in the art hope to further improve its ink repellency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0111] [Manufacturing method of colored photosensitive resin composition]

[0112] The colored photosensitive resin composition of the present invention is obtained by mixing all the above-mentioned components with a mixer. In addition, it is also possible to filter with a filter in order to homogenize the obtained mixture.

[0113] [Manufacturing method of color filter]

[0114] First, use a contact transfer coating device such as a roll coater, a reverse coater, or a bar coater, or a spin coater (Spinner, spin coater), or a curtain coater A non-contact coating device such as a flow coater) coats the colored photosensitive resin composition of the present invention on a substrate. As the substrate, a light-transmitting substrate is used.

[0115] Next, the applied colored photosensitive resin composition is dried to form a coating film. The drying method is not particularly limited, for example, any one of the following methods can be adopted: (1) a method of drying at a ...

Embodiment 1

[0122] Resin (A-1) and monomer (A-3) pentaerythritol tetraacrylate were used as a photopolymerizable compound (A).

[0123] [Synthesis of resin (A-1)]

[0124] The synthesis of resin (A-1) is as follows.

[0125] Blow in air at a speed of 25 ml / min, simultaneously with 235g bisphenol fluorene type epoxy resin (epoxy equivalent is 235), 110mg tetramethylammonium chloride, 100mg 2,6-di-tert-butyl-4-methyl The base phenol and 72.0 g of acrylic acid were melted by heating at 90°C to 100°C, and then the temperature was gradually raised to 120°C. At this point, the acid value was measured, and heating and stirring was continued for about 12 hours until the acid value became less than 1.0 mgKOH / g. Then, it was cooled to room temperature to obtain a colorless and transparent solid bisphenol fluorene type epoxy acrylate.

[0126] Next, 350 g of propylene glycol monomethyl ether acetate (PGMEA) was added and dissolved in 307.0 g of the obtained above-mentioned bisphenol fluorene type...

Embodiment 2～5、 comparative example 1～5

[0136] Except that in Example 1, the compounding amounts of (A), (B), (C), and (D) components represented in Table 1 and Table 2 were prepared, the rest were prepared in the same manner as in Example 1. Colored photosensitive resin combination. Each component described in Table 1 and Table 2 is as follows.

[0137] [Synthesis of compound (B-2)]

[0138] 35g glycidyl methacrylate, 100g fluoromonomer (CH 2 =C(CH 3 ) COOCH 2 CH 2 (CF 2 ) 6 F), 45g methyl methacrylate, 7g chain transfer agent n-dodecyl mercaptan, 2g 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile) dissolved in 600 g of cyclopentanone was stirred and polymerized at 60° C. in a nitrogen atmosphere to obtain a solution of a copolymer.

[0139] Add 8 g of acrylic acid and 140 mg of triphenylphosphine to the solution of the above copolymer, dissolve and stir at about 100 to 120°C to react the epoxy group derived from glycidyl methacrylate in the above copolymer with the carboxyl group of acrylic acid . At th...

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Abstract

The invention provides a colored photosensitive resin composition having further improved ink repellency. The colored photosensitive resin composition comprises a photopolymerizable compound (A), an ink-repellent compound (B), a photopolymerization initiator (C) and a colorant (D), wherein the ink-repellent compound (B) is epoxy acrylate obtained by sequentially reacting a copolymer, formed by copolymerizing at least an epoxy group-containing acrylic monomer and a fluorinated monomer copolymerizable with the epoxy group-containing acrylic monomer, with an ethylenically unsaturated group-containing carboxylic acid compound and further with a polybasic acid anhydride.

Description

technical field [0001] The invention relates to a colored photosensitive resin composition, in particular to a colored photosensitive resin composition suitable for use in forming a black matrix (Black Matrix) of a color filter (ColorFilter). Background technique [0002] A display such as a liquid crystal display has a structure in which a liquid crystal layer is sandwiched between two substrates on which opposing paired electrodes are formed. In addition, a color filter having pixel regions including red (R), green (G), blue (B) and other colors is formed inside one substrate. In the color filter, in order to improve contrast or prevent light leakage, etc., a black matrix is ​​generally formed, and the black matrix is ​​arranged in a matrix to divide pixel areas of R, G, and B colors. [0003] Color filters are generally manufactured by lithography. In the photolithography, firstly, the black photosensitive resin composition is coated on the substrate, and then exposed a...

Claims

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Application Information

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IPC IPC(8): G03F7/027G03F7/004
CPCC09B11/24G02B5/223G03F7/0007G03F7/027G03F7/032G03F7/033G03F7/0388
Inventor 盐田大信太胜大内康秀加藤哲也内河喜代司
Owner TOKYO OHKA KOGYO CO LTD
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