Patent ID: 9216562
Filing Date: 2015-12-22
Classification: B32B,C08G,C09D

Abstract:
1. An alignment film material used for liquid crystal display panel, wherein, the alignment film material comprises a solvent and a substance dissolved in the solvent; the substance comprising at least one first polymer, the first polymer comprising a main chain and a side chain connected to the main chain, part of the side chain comprising an alkyl group with a predetermined length, the end of the alkyl group comprising a cyclohexenyl group, the para- or meta-position of the cyclohexenyl group comprising a sterically hindered functional group, so that the side chain has the property of forming stable vertical alignment, the sterically hindered functional group being selected from alkyl group, aryl group and heterocyclic ring, the main chain being a second polymer, the second polymer being selected from polyimide and polyimide acid, the solvent being selected from the group consisting of n-methyl pyrrolidone and diethylene glycol monobutyl ether.