A liquid crystal alignment agent containing at least two kinds of polymers selected from the group consisting of polyamic acids and imidized polymers and having a structure obtained by dehydration and ring closure of polyamic acid. In the at least two kinds of polymers contained in the liquid crystal alignment agent, the polymer of higher imidization degree has a smaller surface free energy. The liquid crystal alignment agent gives a liquid crystal display device having less stuck image and high pretilt angle.
一种液晶配向剂,含有至少两种聚合物,这两种聚合物选自聚酰胺酸和
亚胺 化聚合物,其结构由聚酰胺酸脱
水和闭环获得。在液晶配向剂所含的至少两种聚合物中,
酰亚胺化程度较高的聚合物的表面自由能较小。这种液晶配向剂使液晶显示装置具有较少的卡影现象和较高的前倾角。