Photosensitive resin composition used for color filter

• Main Author: HSU, PO-YI
• Format: Patent
• Language: English
• Published: 21.02.2006
• Edition: 7
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTROGRAPHY; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS THEREFOR; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

This invention relates to a photosensitive resin composition used for color filter, in which after coating, exposure and development, the unexposed portion of the substrate and the black matrix using the disclosed resin composition contains very few quantities of residues; whose heat-resistance and alkaline-resistance on pixel color layer remains excellent after post-bake without pigment particle coagulation. The disclosed composition comprises alkaline soluble resin (A), vinyl unsaturated group containing compound (B), photoinitiator (C), organic solvent (D), and pigment (E), wherein the alkaline soluble resin (A) is composed of 0.1 to 100 weight parts of alkaline soluble resin (A-1) and, if necessary, chosen from another alkaline soluble resin (A-2) in weight parts of 99.9 to 0, in which (A-1) and (A-2) add up to 100 parts; wherein the alkaline soluble resin (A-1) is composed of copolymerized composition of 0.2 to 30 weight parts of maleic anhydride monomer (a-1), 3 to 40 weight parts of carboxylic-group containing unsaturated monomer (a-2), and 30 to 96.8 weight parts of other copolymerisable vinyl monomer (a-3) than monomers (a-1) and (a-2), with (a-1), (a-2), and (a-3) add up to 100 parts; the alkaline soluble resin (A-2) is composed of copolymerized composition of blow 0.2 weight parts of maleic anhydride monomer (a'-1), 5 to 50 weight parts of carboxylic-group containing unsaturated monomer (a'-2), and 49.8 to 95 weight parts of other copolymerisable vinyl monomer (a'-3) than monomers (a'-1) and (a'-2), with (a'-1), (a'-2), and (a'-3) add up to 100 parts; and in the above photosensitive resin composition, the ratio of the total content of repeating units for the maleic anhydride monomers (a-1) and (a'-1) of alkaline soluble resin (A) to the content of pigment (E) is between 0.001 and 0.015.