| abstract |
Disclosed is a thermosetting composition having a photo-alignment property capable of forming an alignment layer having excellent liquid crystal aligning ability and adhesion to a liquid crystal layer, and to provide an alignment layer, a substrate with an orientation layer, a retarder, and a device using the same. . The present invention provides a thermosetting composition having a photo-alignment property, which comprises a copolymer having a photo-orientable structural unit represented by the following formula (1) and a thermally cross-linkable structural unit represented by the following formula (2) , Thereby achieving the above object. One where equation (1), X is photo-alignment group, L 1 is a divalent linking group or a single bond, R 1 is a hydrogen atom or a monovalent organic group, k represents 1 to 5, the formula (2), Y L 2 is a divalent linking group or a single bond, R 2 is a hydrogen atom or a monovalent organic group, and 1 is 1 to 5. |