| abstract |
An object of the present invention is to provide a cured film forming composition for a cured film having excellent photoreaction efficiency, solvent resistance and high adhesion, an alignment material for photoalignment, and a phase difference formed by using the alignment material. material. The solution is that the cured film forming composition contains (A) a compound having a photo-alignment group and any one selected from a hydroxyl group, a carboxyl group and an amine group, and (B) having a hydroxyl group, a carboxyl group and an amine group. a hydrophilic polymer of one or more substituents selected, and (C) reacting with the components (A) and (B), and reacting at a temperature lower than a sublimation temperature of the component (A) The crosslinking agent may further contain (E) a binding enhancing component when the component (B) is an acrylic polymer. The crosslinking agent of the component (C) has a hydrophilicity superior to that of the component (A). After the cured film is formed using the cured film to form a cured film, the alignment material (10) is formed by a photo-alignment technique. The polymerizable liquid crystal is applied over the alignment material (10), and after hardening, a phase difference material is obtained. |