Patent ID: 8263732
Filing Date: 2012-09-11
Classification: C08G,C09K,G02F

Abstract:
1. A photo-alignment film, which is formed by imidization after alignment of a polyamic acid generated using at least a diamine and a tetracarboxylic acid dianhydride as raw materials by light irradiation in a predetermined direction, wherein: the diamine comprises one or more diamines containing an unsaturated bond each represented by a general formula (1) described below as component A of the diamine; the tetracarboxylic acid dianhydride comprises one or more tetracarboxylic acid dianhydrides containing an unsaturated bond each represented by a general formula (2) described below as component A of the tetracarboxylic acid dianhydride; or the diamine comprises the one or more diamines containing unsaturated bonds as component A of the diamine, and the tetracarboxylic acid dianhydride comprises the one or two or more tetracarboxylic acid dianhydrides containing unsaturated bonds as component A of the tetracarboxylic acid dianhydride: where A where A