Patent ID: 8993202
Filing Date: 2015-03-31
Classification: C08F,C09K,G02B,G02F,G03F,Y10T

Abstract:
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 R R where R with the proviso that at least three groups of formula (II) are present; (B) a binder comprising an alkali soluble copolymer having a side chain containing an ethylenically unsaturated bond, with the proviso that the copolymer does not include a further structural unit containing a branched and/or alicyclic structure in the side chain; (C) a pigment; and (D) a photopolymerization initiator, wherein the copolymer has a structural unit containing an acidic group and a structural unit of formula (IVa), and, optionally, (IVb) or (IVc): wherein R R p is 0, 1, 2, or 3, wherein the copolymer is obtainable 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; followed by functionalizing the acidic group of (a) to form at least one unit of formula (IVa): wherein p is 0 and the molar ratio of (a) to (IVa) in the final copolymer is from 9:1 to 3:1.