| abstract |
A compound useful for fabrication of retardation plates, which is represented by the formula (DI): n nwherein Y 11 to Y 13 represent methine or nitrogen; R 11 to R 13 represent a group of the formula (DI-A) below or others:n n nwherein A 11 to A 16 represent methine or nitrogen; X 1 represents oxygen, sulfur, methylene or imino; L 11 represents —O—, —C(═O)—, —O—CO—, —CO—O—, —O—CO—O—, —S—, —NH—, —SO 2 —, —CH 2 —, —CH═CH—, or —C≡C—; L 12 represents a divalent linking group; Q 11 represents polymerizable group or hydrogen. |