Pigment fine particles dispersion, the photocurable composition using the same, a color filter, and a manufacturing method of a pigment nanoparticle dispersion

摘要

The invention discloses a pigment particle dispersion whereof the particle is characterized by small grain diameter and pointed particle size distribution peak. The pigment particle dispersion herein is especially applicable to serving as pigment for color filter, can explicitly increase contrast, and displays efficient dispersion. The pigment particle dispersion herein comprises pigment particles and a compound expressed by the following general formula (1) whereof X1 and X2 each independently represents hydrogen atom, halogen atom, alkyl in replacement or non-replacement, or aromatic group in replacement or non-replacement; R 1 and R2 each independently represents hydrogen atom, or alkyl in replacement or non-replacement; wherein at least one of R1 and R2 represents alkyl in replacement or non-replacement with a carbon atomicity of 2. The general formula (1).