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Colored photosensitive resin composition, color filter and display device

A technology of photosensitive resin and composition, applied in the direction of instruments, optics, filters, etc., can solve the problem that the technology cannot fully meet the characteristics and other problems, achieve excellent color reproduction characteristics, prevent the loss of fine patterns, and excellent undercut characteristics. Effect

Active Publication Date: 2021-07-23
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the actual situation is that the conventional technology cannot sufficiently satisfy the above-mentioned characteristics

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

[0188] Production Example 1. Production of Pigment Dispersion Composition

[0189]

[0190] 10.1 parts by mass of C.I. Pigment Green 7, 2.7 parts by mass of C.I. Pigment Yellow 138, 7.2 parts by mass of DISPERBYK-2001 (manufactured by BYK) as a pigment dispersant, 78 parts by mass of propylene glycol methyl as a solvent The ether acetate was mixed / dispersed for 12 hours using a bead mill to prepare pigment dispersion composition M1.

[0191]

[0192] 10.1 parts by mass of C.I. Pigment Green 58 as a pigment, 2.7 parts by mass of C.I. Pigment Yellow 138, 7.2 parts by mass of DISPERBYK-2001 (manufactured by BYK) as a pigment dispersant, 78 parts by mass of propylene glycol methyl as a solvent The methyl ether acetate was mixed / dispersed for 12 hours using a bead mill to prepare a pigment dispersion composition M2.

[0193]

[0194] 10.1 parts by mass of C.I. Pigment Green 59 as a pigment, 2.7 parts by mass of C.I. Pigment Yellow 138, 7.2 parts by mass of DISPERBYK-2001 (ma...

manufacture example 2

[0195] Production example 2: Production of alkali-soluble resin

Synthetic example 1

[0196] Synthesis Example 1: Synthesis of A-1

[0197] In a 1000ml flask equipped with a stirrer, a thermometer, a reflux condenser, a dropping funnel and a nitrogen inlet tube, 400 parts by mass of propyl glycol monomethyl ether acetate, 7 parts of AIBN, benzyl methacrylate (BzMA , chemical formula 4) 50 mass parts, tricyclodecane skeleton monomethacrylate (Hitachi Chemical Co., Ltd. manufacture FA-513M) (TCDMA) 63 mass parts, methacrylate 20 mass parts, methacrylic acid 20 mass parts parts, and replaced with nitrogen. Thereafter, the temperature of the reaction liquid was raised to 120° C. while stirring, and the reaction was carried out for 15 hours after the temperature was raised. The alkali-soluble resin thus synthesized had a final solid content of 38.8%, a solid content acid value of 80 mgKOH / g, and a weight average molecular weight measured by GPC of 27,000.

[0198] [chemical formula 4]

[0199]

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Abstract

The present invention provides a colored photosensitive resin composition, a color filter, and a display device. The colored photosensitive resin composition is characterized by containing a colorant, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent. The alkali-soluble resin is a resin containing structural units represented by chemical formulas 1 and 2, a weight average molecular weight of 25,000 to 35,000, and an acid value of 50 to 100 mgKOH / g, and the photopolymerization initiator contains 60 to 95 mgKOH / g relative to the total weight of the photopolymerization initiator. % by weight of the compound represented by Chemical Formula 3. In Chemical Formula 1, R1 is each independently hydrogen or an alkyl group with 1 to 5 carbon atoms; in Chemical Formula 2, R1 is hydrogen or an alkyl group with 1 to 5 carbon atoms, and R2 is each independently hydrogen or an alkyl group with 1 to 5 carbon atoms. ~5 alkyl groups; in chemical formula 3, R3 is C1-C12 alkyl, aryl or aralkyl, and R4 is C1-C12 alkyl or aryl.

Description

technical field [0001] The present invention relates to a colored photosensitive resin composition, a color filter produced using the colored photosensitive resin 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 cyan (Cyan) coloring patterns of three colors are formed. [0003] Each colored pattern in the above-mentioned color filter is generally formed with a colored photosensitive resin composition containing a colorant such as a pigment or a dye, an alkali-soluble resin, a photopolymerizable compound, a phot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/027G03F7/004G02B5/20
CPCG02B5/20G03F7/004G03F7/027G02F1/133514G03F7/0007G03F7/031G03F7/105
Inventor 吴相旼尹譞䑐
Owner DONGWOO FINE CHEM CO LTD
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