Patent ID: 8262931

Claim:
A polymerizable liquid crystal compound represented by formula (I): where R 0 and R 1 each independently represent a hydrogen atom, or C 1-4 alkyl group which may have at least one substituent; L 0 and L 1 each independently represent a hydrogen atom, or C 1-4 alkyl group which may have at least one substituent; A 0 and A 1 each independently represent a divalent linking group having a 5- to 12-membered cyclic structure which may have at least one substituent; B 0 and B 1 each independently represent a single bond or a divalent linking group having a 5- to 12-membered cyclic structure which may have at least one substituent; D 0 and D 1 each independently represent —O—, —S—, or —NR 2 — where R 2 represents a hydrogen atom or C 1-3 alkyl group; X 0 and X 1 each independently represent a hydrogen atom, acyl group or cyano; Y 0 and Y 1 each independently represent a single bond, —O—, —S—, —OCO—, —COO—, —OCOO—, —NR 3 CO—, —CONR 3 —, —OCONR 3 —, —NR 3 COO—, —NR 3 CONR 3 —, —C═N— or —N═C— where R 3 represents a hydrogen atom or C 1-3 alkyl group; Q 0 and Q 1 each independently represent a C 1-20 divalent aliphatic group which may have at least one substituent; provided that one —CH 2 — or two or more —CH 2 —, which may be not adjacent to each other, may be replaced with —O—, —S—, —NR 4 —, —OCO—, —COO—, —OCOO—, —NR 4 CO—, or —CONR 4 —; R 4 represents a hydrogen atom or C 1-3 alkyl group; Z 0 and Z 1 each independently represent a hydrogen atom, cyano, halogen atom or polymerizable group; and n and m each independently represent an integer of from 0 to 2.