INKJET INK FOR COLOR FILTER, COLOR FILTER AND METHOD FOR MANUFACTURING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an inkjet ink for a color filter, the ink having high pigment dispersibility and capable of improving optical performance, with which a color layer having high flatness can be formed even by an inkjet system.

SOLUTION: The inkjet ink comprises: a pigment; a pigment dispersant which is a block copolymer comprising a polymer (A) block including a repeating unit expressed by formula (A) and a polymer (B) block including a repeating unit expressed by formula (B) linked to each other, in which the (A) block is partially converted into a quaternary ammonium salt expressed by formula (C) and the (B) block has a glass transition temperature of 30°C or lower; an epoxy compound having two or more epoxy groups; a curing agent; and a solvent containing diethylene glycol monobutyl ether acetate having a boiling point of 180°C to 260°C and a vapor pressure of 0.5 mmHg or lower at normal temperature, by 80 mass% or more with respect to the entire amount of the solvent.

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