カラーフィルタ用着色組成物、およびカラーフィルタ

摘要

PROBLEM TO BE SOLVED: To provide a coloring composition for a color filter excellent in dispersibility, fluidity and storage stability and to provide a color filter using the coloring composition.SOLUTION: The coloring composition for a color filter contains a coloring agent containing quinophthalone pigment, a pigment dispersant and an organic solvent. The pigment dispersant is obtained by reacting isocyanate groups of a urethane prepolymer (E) including isocyanate groups on both terminals that is obtained by reacting hydroxyl groups of a vinyl polymer (A) including two hydroxyl groups in one terminal area and an isocyanate group of di-isocyanate (B); and a primary and/or secondary amino group of an amine compound containing at least polyamine (C). The vinyl polymer (A) includes ethylenically unsaturated monomer (a1) including at least either one of an ethylene oxide chain and a propylene oxide chain in a copolymer composition.