Novel photo-functional polymer material, process for producing same, and process for producing liquid crystal alignment film using the same

摘要

The present invention relates to an azo-polyamic acid represented by the following general formula (I) and an azo-polyimide represented by the following general formula (II), a process for their preparation, Nematic, Ferroelectric, and anti-ferroelectric LCD, and it is difficult to uniformly align the liquid crystal alignment film due to contamination caused by contact rubbing, reduction of product yield due to static electricity, contrast reduction, (Photochemical Alignment of Photo-Polyimide) using the photochemical properties of photo-sensitive rigid polyimide.;-----(I);-----(II);In the above formula, X is , ,;, ,;, ,;or to be.