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Colored photosensitive resin composition, color filter and display device

A technology of photosensitive resin and composition, which is applied in the direction of instruments, optics, optical filters, etc., can solve the problems of insufficient reliability of NMP dissolution, the realization of height difference and the inability to perfectly solve the process margin, etc., and achieve excellent resolution, Excellent light-shielding effect

Active Publication Date: 2019-05-17
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional technology used a common copolymer, and the reliability of NMP dissolution was not sufficient, and the problem of process margin was not perfectly solved in terms of realizing the height difference.

Method used

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  • Colored photosensitive resin composition, color filter and display device
  • Colored photosensitive resin composition, color filter and display device
  • Colored photosensitive resin composition, color filter and display device

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0145] Production example 1: Production of alkali-soluble resin B1

[0146] In a separable flask with an inner volume of 1 L equipped with a stirrer, a thermometer, a reflux condenser, a dropping funnel, and a nitrogen gas introduction tube, 277 g of propylene glycol monomethyl ether acetate (hereinafter referred to as "PGMEA") was added, and the temperature was raised to After 80°C, 3,4-epoxytricyclic [5.2.1.0 2,6 ]decane-9-yl acrylate with 3,4-epoxytricyclo[5.2.1.0 2,6 ] a mixture of decane-8-yl acrylate [50:50 (molar ratio)] (that is, the compound represented by the following chemical formula 1-1 and chemical formula 1-2 [R a =H]) 301g, 49g of methacrylic acid and 23g of azobisdimethylvaleronitrile dissolved in 350g of methoxybutyl acetate, and carried out aging for 3 hours to obtain a copolymer solution (solid Ingredient concentration 35.0%). The acid value (dry) of the obtained copolymer was 60.2 mgKOH / g, and the weight average molecular weight (Mw) was 9,000.

[0147...

manufacture example 2

[0152] Production example 2: Production of alkali-soluble resin B2

[0153] In a separable flask with an inner volume of 1 L equipped with a stirrer, a thermometer, a reflux condenser, a dropping funnel, and a nitrogen gas introduction tube, 277 g of propylene glycol monomethyl ether acetate (hereinafter referred to as "PGMEA") was added, and the temperature was raised to After 80°C, dropwise add 3,4-epoxytricyclic [5.2.1.0 2,6 ]decane-9-yl acrylate with 3,4-epoxytricyclo[5.2.1.0 2,6 ] a mixture of decane-8-yl acrylate [50:50 (molar ratio)] (that is, the compound represented by the above chemical formula 1-1 and chemical formula 1-2 [R a =H]) 301g, 49g of methacrylic acid and 23g of azobisdimethylvaleronitrile dissolved in 350g of methoxybutyl acetate, and carried out aging for 3 hours to obtain a copolymer solution (solid Ingredient concentration 35.0%). The acid value (dry) of the obtained copolymer was 61.5 mgKOH / g, and the weight average molecular weight (Mw) was 15,000...

manufacture example 3

[0154] Production example 3: Production of alkali-soluble resin B3

[0155] In a separable flask equipped with a stirrer, a thermometer, a reflux condenser, a dropping funnel, and a nitrogen introduction tube, add 72 parts by weight of methyl methacrylate, 3 parts by weight of acrylic acid, and 2 times the total amount of monomers. Propylene glycol monomethyl ether acetate (hereinafter referred to as "PGMEA"), 5 parts by weight of 2,2'-azobis(2-methylbutyronitrile) based on the total amount of monomers (100 parts by weight) , so that it dissolves evenly. Thereafter, the mixture was stirred at 85° C. for 2 hours under a nitrogen stream, and reacted again at 100° C. for 1 hour. To the obtained solution, 25 parts by weight of glycidyl methacrylate, 10 parts by weight of triethylamine relative to glycidyl methacrylate, and 1 part by weight of hydroquinone relative to glycidyl methacrylate were added. , and PGMEA in which the total weight of the monomer and glycidyl methacrylate ...

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Abstract

The present invention relates to a colored photosensitive resin composition comprising: (A) a colorant; (B) an alkali-soluble resin; (C) a photopolymerizable compound; (D) a photopolymerization initiator; and (E) a solvent, and wherein a film formed by the colored photosensitive composition has a degree of planarization (DOP) value of 15-75%, which is calculated by formula 1, and to a color filtercomprising a black matrix, a column spacer, or a black column spacer manufactured by using the colored photosensitive resin composition, and a display device comprising the color filter. Formula 1 isrepresented by: DOP (%) = {((a)-(d)) / (a)} x 100 (0 <= (d) <= 1.5 um, (d) <= (a) <= (b)).

Description

technical field [0001] The present invention relates to a colored photosensitive resin composition, a color filter manufactured using the composition, and a display device including the color filter. Background technique [0002] Color filters are widely used in various display devices such as imaging elements and liquid crystal displays (LCDs), and the range of applications thereof is rapidly expanding. The color filters used in the above-mentioned imaging elements, liquid crystal display devices, etc. are formed of coloring patterns of three colors of red (Red), green (Green) and blue (Blue), or are formed of yellow (Yellow), magenta (Magenta ) and blue-green (Cyan) coloring patterns of three colors are formed. [0003] Each colored pattern of the above-mentioned color filter is generally formed using a colored photosensitive resin composition containing a colorant such as a pigment or a dye, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/027G02B1/04G02B5/20G03F7/00
CPCG02F1/133514G03F7/0007G03F7/004G03F7/027G03F7/028G03F7/033G03F7/105G02B5/20
Inventor 曺升铉权宁竖李贤普
Owner DONGWOO FINE CHEM CO LTD
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