Optical alignment composition aligment layer formed therefrom liquid crystal device employing the alignment layer

摘要

The present invention provides a photo-alignment composition comprising a self-photosensitive polyimide having a benzophenone moiety and a reactive hydrogen component, an alignment film formed using the composition and the alignment film A liquid crystal display device provided is disclosed. According to the present invention, an alignment film having excellent thermal stability of alignment and an improved pretilt angle can be obtained, whereby a liquid crystal display device having superior performance than the conventional one can be obtained.