COLORING MATERIAL DISPERSION, COLORED RESIN COMPOSITION FOR COLOR FILTER, COLOR FILTER, AND DISPLAY DEVICE

摘要

Provided is a coloring material dispersion whereby a coating film can be formed which has excellent stability over time and enhanced heat resistance. A coloring material dispersion containing a coloring material represented by general formula (I), a dispersing agent, an organic acid compound, and a solvent, the dispersing agent being a block copolymer having at least structural units (a) represented by general formula (II) and having an amine value of 70 mg KOH/g to 160 mg KOH/g, the solvent being a solvent in which the solubility of the coloring material at 23°C is 0.1 (g/10 mL solvent) or lower, and the coloring material dispersion satisfying expressions (1) and (2), and satisfying expression (3) when X is in a range less than 1. Expression (1): X ≤ 1.5. Expression (2): A × X ≥ 40. Expression (3): A × (1 – X) ≤ 42. (The reference symbols in expressions (1) through (3) and general formulas (I) and (II) are as described in the specification.)