申请人:CHI MEI CORPORATION
公开号:US20150307781A1
公开(公告)日:2015-10-29
The invention relates to a liquid crystal alignment agent having low ion density, and a liquid crystal alignment film formed thereby and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent according to the invention which provides a polymer (A), a benzotriazole compound (B) and a solvent (C); wherein the polymer (A) is obtained by reacting a mixture comprising a tetracarboxylic acid dianhydride component (a) and a diamine component (b).