Patent ID: 8487069
Filing Date: 2013-07-16
Classification: C08G,C08L,C09K

Abstract:
1. A liquid crystal photo-alignment agent comprising: a polymer compound comprising polyamic acid comprising a first structural unit derived from a photo-diamine represented by the following Chemical Formula 1, a second structural unit derived from a diamine represented by the following Chemical Formula 2, and a third structural unit derived from a second photo-diamine represented by the following Chemical Formula 2-2, a polyimide prepared by imidizing said polyamic acid, or a combination thereof; and optionally a solvent: wherein, each R each R L1 comprises —O— or —NH—, L2 comprises a functional group comprising unsubstituted alkylene, alkylene substituted with at least one halogen or cyano, alkylene comprising at least one substituent comprising —O—, —CO—, —CO—O—, —O—CO—, —Si(CH n1 is an integer ranging from 1 to 5, n2 is an integer ranging from 0 to 3, and n3 is an integer ranging from 0 to 3, wherein, in Chemical Formula 2, n4 is an integer ranging from 1 to 4, n5 is an integer ranging from 0 to 3, n4+n5 is an integer ranging from 1 to 4, each R each R wherein, x is an integer ranging from 0 to 9, and each R with the proviso that when x is 0, each R