| abstract |
The present invention provides a compound and a polymer which can form a photo-alignment film having an excellent alignment regulating force, a photo-alignment film using the polymer, an optical anisotropic body comprising the photo-alignment film, and a liquid crystal display element. According to the polymer of the present invention, a light alignment film having excellent alignment regulating force can be obtained, and since it is highly sensitive to polarized ultraviolet rays, light having a higher alignment restriction force by less light irradiation can be obtained. Orientation film. By using the optical alignment film of the present invention, a liquid crystal display element excellent in image quality can be produced with a short production time. Further, since the photo-alignment film of the present invention has excellent liquid crystal alignment, the AC afterimage of the liquid crystal display element including the photo-alignment film can be reduced. |