| abstract |
[PROBLEMS] To provide a photo-alignment film having a voltage holding ratio at a high temperature, good alignment stability, and sufficient durability against light and heat. The present invention provides a photo-alignment material containing a polyfunctional maleimide derivative having a photo-alignment-constituting unit and an alkenyl-substituted nadiimide derivative, and a photo-alignment film capable of aligning liquid crystal molecules without rubbing using the same. Manufacturing method. |