| abstract |
The present invention relates to a composition for a photo-alignment film, which exhibits excellent thermal stability, orientation and orientation rate, and which can suppress the after-image and improve the voltage holding ratio when applied to a liquid crystal cell, and a photo alignment film and a liquid crystal alignment film . The composition for the photo alignment layer includes a cyclic olefin-based photo-orientable polymer and a polyamic acid ester-based photo-alignment aid. |