| abstract |
The present invention provides a cured film-forming composition for forming a cured film having excellent photoreaction efficiency, solvent resistance, and high adhesion, an orientation material for photo-alignment, and a phase difference formed by using the orientation material. material. The composition for forming a cured film contains the following (A) component, (B) component and (C) component, (A) component: having a photo-alignment group and any substituent selected from hydroxyl, carboxyl and amino groups compound, (B) component: a hydrophilic polymer having one or more substituents selected from hydroxyl, carboxyl and amino groups, (C) component: react with (A) component and (B) component , and a crosslinking agent that reacts at a temperature lower than the sublimation temperature of the (A) component, but when the (B) component is an acrylic polymer, the (E) adhesion improving component is further contained. (C) The crosslinking agent of a component may have more hydrophilicity than (A) component. Using this cured film-forming composition, a cured film is formed, and the orientation material 10 is formed by photo-alignment technology. A polymerizable liquid crystal is coated on the alignment material 10 and cured to obtain a phase difference material. |