Color filter for low temperature applications

摘要

A color filter comprising a cured layer of a photosensitive resist composition comprising a highly reactive polyacrylate monomer and a process for the preparation thereof are provided. The color filter is especially useful for low temperature applications such as electrophoretic displays, polymer dispersed liquid crystal displays, OLED devices and the like.

主权项

1. A color filter comprising a substrate and a cured layer of a photosensitive resist composition comprising
(A) a polyacrylate monomer of formula (I) wherein n is 4; and R1, R2, and R3 are a group of formula (II) R4 is independently from each other H or methyl; (B) a binder which is a copolymer obtained by polymerizing (a) (meth)acrylic acid, and (b) at least one monomer selected from the group consisting of methyl (meth)acrylate, n-butyl (meth)acrylate, styrene, 2-hydroxyethyl (meth)acrylate and benzyl (meth)acrylate, in a molar ratio of (a) to (b) of from 1:4 to 1:1; optionally followed by functionalizing the acidic group of (a) to form formula (IVd) wherein R3 and R7 are identical or different and are hydrogen or methyl; and the molar ratio of (a) to (IVd) in the final copolymer is of from 9:1 to 3:1; (C) a pigment; and (D) a photopolymerization initiator.