POLYIMIDE AND LIQUID CRYSTAL ALIGNMENT FILM THEREOF
申请人:Chern Yaw-Terng
公开号:US20080269458A1
公开(公告)日:2008-10-30
The present invention provides a polyimide having the formula (II) formed by reacting a dianhydride with the diamine having the formula (I). The polyimide provided by the present invention serves as a material for preparing the liquid crystal aligning film, wherein the liquid crystal aligning film could achieve the pre-tilt angle of 88-90° by containing only less than 5% of the diamine having the formula (I), which could highly lower down the manufacturing cost.