Diamino compounds, polyamic acids, polyimides, liquid crystal aligning films using said polyimide films and liquid crystal display devices using said aligning films
申请人:Chisso Corporation
公开号:US06238752B1
公开(公告)日:2001-05-29
This invention relates to a diamino compound represented by the formula [1]:
in which G1 is a trivalent organic group of 2-20 carbon atoms, G2 is independently a single bond, —COO—, —OCO—, —NHCO—, —CONH—, —O—, —O—, or —CO—, G3 is a single bond or an alkylene group of 1-20 carbon atoms, X and Y are each independently a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, or an alkyl group, a haloalkyl group, an alkoxy group or a haloalkoxy group, each alkyl or alkoxy group having 1-12 carbon atoms, or a cycloalkyl group of 3-8 carbon atoms or a trans-4-alkylcyclohexyl group of 9-14 carbon atoms, and m is an integer of 0-3; a polyamic acid and polyimide using the said diamino compound, an aligning film using the said polyimide and a liquid crystal display device using the said aligning film. The aligning film is prepared by irradiation of a polarized ultraviolet light to the polyimide film.
本发明涉及一种由式子[1]表示的二氨基化合物:其中,G1是2-20个碳原子的三价有机基团,G2独立地是单键,—COO—,—OCO—,—NHCO—,—CONH—,—O—,—O—或—CO—,G3是单键或1-20个碳原子的烷基基团,X和Y各自独立地是氢原子,氟原子,氯原子,氰基,硝基或1-12个碳原子的烷基基团,卤代烷基基团,烷氧基或卤代烷氧基,每个烷基或烷氧基具有1-12个碳原子,或3-8个碳原子的环烷基或9-14个碳原子的反-4-烷基环己基基团,m为0-3的整数;使用所述二氨基化合物的聚酰亚胺酸和聚酰亚胺,使用所述聚酰亚胺的调向膜和使用所述调向膜的液晶显示装置。该调向膜是通过对聚酰亚胺薄膜进行极化紫外线照射制备的。