PRODUCTION METHOD OF FILTER SEGMENT FOR COLOR FILTER, FILTER SEGMENT FOR COLOR FILTER, COLOR FILTER, AND COLORED COMPOSITION FOR ETCHING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a production method of a color filter segment having good etching property while preventing reduction in lightness even in a positive resist etching system using a colored composition containing an acrylic resin, and to provide a high-quality filter segment for a color filter excellent in high heat resistance and high chemical resistance.SOLUTION: The production method of a color filer is carried out by using a colored composition containing a dispersant: the dispersant has a main chain that is a polyester having a carboxyl group derived from a polycarboxylic acid anhydride, and has a side chain that is a vinyl polymer having a glass transition temperature of 50°C or higher.SELECTED DRAWING: None