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Blue photosensitive resin composition, blue filter and display device having same

A resin composition, blue light-sensitive technology, applied in optical filters, photosensitive materials for optomechanical equipment, optics, etc., can solve problems such as visibility problems, difficulties in manufacturing high-quality display devices, pattern defects, etc., and achieve The effect of improving flatness

Active Publication Date: 2021-02-19
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in particular, as the paint film becomes thicker, the colored photosensitive resin composition providing blue pixels often produces pattern defects; and the problem of pattern flatness of manufactured color filters occurs continuously
When the pattern flatness problem arises, the color coordinates in one pixel are not equal, and thus visibility problems arise, and it is difficult to manufacture high-quality display devices

Method used

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  • Blue photosensitive resin composition, blue filter and display device having same
  • Blue photosensitive resin composition, blue filter and display device having same
  • Blue photosensitive resin composition, blue filter and display device having same

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0182] [Preparation Example 1]: Preparation of Pigment Dispersion Composition

[0183] 12.0 parts by weight of C.I. Pigment Blue 15:6 as a pigment, 4.0 parts by weight of DISPERBYK-2001 (purchased from BYK) as a pigment dispersant, and 84 parts by weight of propylene glycol methyl ether acetate as a solvent were carried out by using a ball mill. Mix / disperse for 12 hours to prepare a pigment dispersion composition.

[0184]

Synthetic example 1

[0185] Synthesis Example 1: Synthesis of Alkali-Soluble Resin

[0186] 120 parts by weight of propylene glycol monomethyl ether acetate, 80 parts by weight of propylene glycol monomethyl ether, 2 parts by weight of AIBN, 13.0 parts by weight of methacrylic acid, 10 parts by weight of benzyl methacrylate, 57 parts by weight of 4-Methylstyrene, 20 parts by weight of methyl methacrylate and 3 parts by weight of n-dodecyl mercaptan are put into a mixer, thermometer, reflux condenser, dropping liquid distributor (dropping lot) and Nitrogen was supplied to the flask in the tube, and the inside of the flask was purged with nitrogen. Thereafter, the resulting mixture was stirred, the temperature of the reaction mixture was raised to 110° C., and the reaction was performed for 6 hours, and thus an alkali-soluble resin was synthesized. The acid value of the solid of the alkali-soluble resin thus synthesized was 100.2 mgKOH / g, and its weight average molecular weight measured by gel perm...

Synthetic example 2

[0187] Synthesis Example 2: Synthesis of Alkali-Soluble Resin

[0188] 200 parts by weight of propylene glycol monomethyl ether acetate, 45 parts by weight of propylene glycol monomethyl ether, 4 parts by weight of azobisisobutyronitrile (AIBN), 15 parts by weight of acrylic acid, 70 parts by weight of benzyl methacrylate Esters, 15 parts by weight of styrene and 3 parts by weight of n-dodecylmercaptan were placed in a flask equipped with a stirrer, thermometer, reflux condenser, drop distributor and nitrogen supply tube, and purged with nitrogen The inside of the flask. Thereafter, the resulting mixture was stirred, the temperature of the reaction mixture was raised to 110° C., and the reaction was performed for 2 hours, and thus an alkali-soluble resin was synthesized. The acid value of the solid of the alkali-soluble resin thus synthesized was 110.4 mgKOH / g, and its weight-average molecular weight measured by GPC was about 8900.

[0189]

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Abstract

The present invention relates to a blue photosensitive resin composition, a blue filter and a display device with a blue filter. The blue photosensitive resin composition includes: a blue colorant, an alkali-soluble resin, and a photopolymerizable compound , a photopolymerization initiator and a solvent, wherein, based on the total weight of the solids of the blue photosensitive resin composition, the content of the alkali-soluble resin is 20% by weight to 80% by weight; based on the total weight of the alkali-soluble resin, the alkali-soluble resin includes 40% by weight to 100% by weight of an alkali-soluble resin having a molecular weight of 15,000 or more; the photopolymerization initiator includes an oxime ester compound; and, based on the total weight of the solvent, the solvent includes more than 0% by weight and not more than 8% by weight of a boiling point for solvents at 180°C or higher.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application KR 10-2014-0028436 filed on March 11, 2014 and Korean Patent Application KR 10-2015-0026937 filed on February 26, 2015, which are hereby incorporated by reference in their entirety Apply. technical field [0003] The present invention relates to a blue photosensitive resin composition, a blue filter and a display device with the blue filter. Background technique [0004] Optical filters are widely used in imaging devices, liquid crystal display devices (LCDs), and the like, and their applications are rapidly expanding. A color filter used in a color liquid crystal display device or an imaging device is manufactured in such a way that each color repeats a series of procedures to form pixels corresponding to each color. A colored photosensitive resin composition of respective pigments of red, green and blue is uniformly coated on a substrate patterned by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/027G02B5/20G02F1/1335
Inventor 申奎澈金秀虎金正植
Owner DONGWOO FINE CHEM CO LTD