Patent ID: 8048496

Claim:
A polymerizable liquid crystal compound represented by Formula (1): wherein G is a single bond or —O—; and R is independently a group represented by Formula (a); in Formula (a), A is 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, 1,4-cyclohexenylene, pyridine-2,5-diyl, pyridazine-3,6-diyl, pyrimidine-2,5-diyl, bicyclo[2.2.2]octane-1,4-diyl, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, or 1,3-dioxane-2,5-diyl, and in these rings, arbitrary hydrogen may be replaced by halogen, alkyl having 1 to 3 carbon atoms, or fluoroalkyl having 1 to 3 carbon atoms; Z is a single bond, —COO—, —OCO—, —OCOO—, —CH 2 CH 2 —, —CH 2 O—, —OCH 2 —, —CF 2 CF 2 —, —CH═CH—, —CF═CF—, —C≡C—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 CF 2 O—, —OCF 2 CH 2 CH 2 —, —CH 2 CH 2 COO—, —OCOCH 2 CH 2 —, —CH═CHCOO—, —OCOCH═CH—, —C≡CCOO—, or —OCOC≡C—; m is an integer of 1 to 3; when m is 2 or 3, a plurality of A may be all the same rings or may be composed of at least two different rings, and a plurality of Z may be all the same groups or may be composed of at least two different groups; Z 0 is a single bond, —O—, —OCO—, or —OCOO—; X 0 is a single bond or alkylene having 1 to 20 carbon atoms; and in this alkylene, arbitrary —CH 2 — may be replaced by —O—, —S—, or —CH═CH— and arbitrary hydrogen may be replaced by fluorine; X is a single bond or alkylene having 1 to 20 carbon atoms; and in this alkylene, arbitrary —CH 2 — may be replaced by —O—, —S—, —COO—, —OCO—, or —OCOO— and arbitrary hydrogen may be replaced by fluorine; and P is a polymerizable group represented by any one of Formula (P1) to Formula (P8): wherein W is hydrogen, halogen, alkyl having 1 to 3 carbon atoms, or fluoroalkyl having 1 to 3 carbon atoms.