液晶配向剂、液晶配向膜和液晶显示元件;LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY

摘要

一种液晶配向剂，包括第一聚合物和第二聚合物，其组成式分别如式1和式2所示。;，其中m+n=1且m0，o+p=1且o0，R1和R3分别是衍生自四羧酸二酐的四价有机基，且至少一部分的R1和至少一部分的R3衍生自芳香族四羧酸二酐，R2和R4分别是衍生自二胺的二价有机基，且有X莫耳%的R2和Y莫耳%的R4衍生自具有苯并咪唑基团的二胺，其中X介于5到50之间，Y介于0到20之间，且X>Y。; o + p = 1 and o0; R1and R3are respectively a tetravalent organic group derived from a tetracarboxylic dianhydride, and at least a portion of R1and at least a portion of R2are respectively derived from an aromatic tetracarboxylic dianhydride; R2and R4are respectively a divalent organic group derived from a diamine, and Xmol% of R2and Ymol% of R4are respectively derived from a diamine having a benzimidazole group, wherein X is between 5 and 50, Y is between 0 and 20, and X > Y.