Patent ID: 7785488

Claim:
A compound represented by the following Formula (1): wherein in Formula (1), R a is independently hydrogen, halogen, cyano, —CF 3 , —CF 2 H, —CFH 2 , —OCF 3 , —OCF 2 H, —N═C═O, —N═C=S or alkyl having a carbon number of approximately 1 to approximately 20; in the alkyl, optional —CH 2 — may be substituted with —O—, —S—, —SO 2 —, —CO—, —COO—, —OCO—, —CH═CH—, —CF═CF— or —C≡C—, and optional hydrogen may be substituted with halogen, wherein R a is not hydrogen when m+n is 0; R b is hydrogen or alkyl having a carbon number of approximately 1 to approximately 5; A is independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl or bicyclo[2.2.2]octane-1,4-diyl; in these rings, optional —CH 2 — may be substituted with —O—, optional —CH═ may be substituted with —N═, and optional hydrogen may be substituted with halogen, alkyl having a carbon number of 1 to 5 or halogenated alkyl having a carbon number of approximately 1 to approximately 5; Z is independently a single bond or alkylene having a carbon number of approximately 1 to approximately 20; in the alkylene, optional —CH 2 — may be substituted with —O—, —CO—, —COO—, —OCO—, —CH═CH—, —CF═CF— or —C≡C—, and optional hydrogen may be substituted with halogen; Y is a single bond or alkylene having a carbon number of approximately 1 to approximately 20; in the alkylene, optional —CH 2 — may be substituted with —O—, —CO—, —COO—, —OCO—or —CH═CH—, and optional hydrogen may be substituted with halogen; and m and n are each an integer of approximately 0 to approximately 5.