Patent ID: 8343595

Claim:
A mixture, comprising a liquid crystal composition and a polymerizable monomer, wherein the liquid crystal composition exhibits an optically isotropic liquid crystal phase and comprises a chiral dopant and a liquid crystal compound represented by formula (1): wherein in formula (1), R 1 is hydrogen or a C 1-20 alkyl in which arbitrary —CH 2 — may be substituted with —O—, —S—, —COO—, —OCO—, —CH═CH—, —CF═CF— or —C≡C—, and arbitrary hydrogen in the alkyl and the group formed by substituting arbitrary —CH 2 — in the alkyl with —O—, —S—, —COO—, —OCO—, —CH═CH—, —CF═CF— or —C≡C— may be substituted with halogen or C 1-3 alkyl; Z 1 , Z 2 , Z 3 , Z 4 and Z 5 are independently a single bond or —CF 2 O— but are not all single bonds; L 1 , L 2 , L 3 , L 4 and L 5 independently hydrogen or fluorine; X 1 is hydrogen, halogen, —C≡N, —N═C═S, —C≡C—C≡N, —SF 5 , or C 1-10 alkyl in which arbitrary —CH 2 — may be substituted with —O—, —S—, —CH═CH— or —C≡C— and arbitrary hydrogen may be substituted with halogen; m is 0, 1 or 2, n and o are independently 0 or 1, and 1≦m+n+o≦2; and when m is 2, the plural L 1 may be different from each other and the plural Z 2 may be different from each other.