Pigment dispersion composition for black matrix, pigment dispersion resist composition for black matrix, and black resist film

The invention relates to a pigment dispersion composition for a black matrix, a pigment dispersion resist composition for a black matrix, and a black resist film. Specifically disclosed is a pigment dispersion composition for a black matrix, which contains carbon black, an inorganic compound, a pigment dispersant containing a basic group, a pigment dispersion aid containing an acidic group, an alkali-soluble resin, and a solvent. The inorganic compound is one or more selected from the group consisting of aluminum hydroxide, aluminum oxide, barium sulfate, barium titanate, boron nitride, and an ion scavenger, the alkali-soluble resin is an alkali-soluble cardol resin, and the amount of the inorganic compound is 1-10 parts by mass per 100 parts by mass of the carbon black. The pigment dispersion composition for black matrices can obtain a pigment dispersion resist composition for black matrices, which has excellent fine line adhesion and surface roughness resistance. 本发明涉及黑矩阵用颜料分散组合物、黑矩阵用颜料分散阻剂组合物、及黑阻剂膜。具体的，本发明