| abstract |
The present invention provides a pigment dispersion for a color filter having excellent heat resistance and a coloring composition for a color filter containing the same. [1] A pigment dispersion containing a specific diketopyrrolopyrrole pigment (A), a graft polymer (B), and an organic solvent (C), wherein the graft polymer (B) is a vinyl monomer. A side chain having a structural unit derived from a hydroxyl group-containing monomer is grafted to a main chain having a structural unit derived from, and the content of the structural unit derived from the hydroxyl group-containing monomer is in all the structural units of the side chain. 5 to 30% by weight of a pigment dispersion for a color filter, and [2] a coloring composition for a color filter containing the pigment dispersion. [Selection figure] None |