| abstract |
An embodiment of the present invention provides a thermosetting composition with a photo-alignment property, including a copolymer containing a photo-alignment constitutional unit represented by the following formula (1) and a thermal cross-linking constitutional unit. In the formula (1), X represents a photo-alignment group causing a photo-isomerization reaction or a photo-dimerization reaction, L 1 represents a single bond, —O—, —S—, —COO—, —COS—, —CO—, —OCO—, —OCO(CH 2 ) n COO—, —OCOCH 2 CH 2 OCH 2 CH 2 COO—, —OCOC 6 H 4 O—, —OCOC 6 H 10 O—, —COO(CH 2 ) n O—, —COOC 6 H 4 O—, —COOC 6 H 10 O—, —O(CH 2 ) n O—, —OC 6 H 4 O—, —OC 6 H 10 O—, or —(CH 2 ) n O—, n represents 1 to 4, R 1 represents a hydrogen atom or a monovalent organic group, and k represents 1 to 5. |