Patent ID: 7435459

Claim:
A liquid crystal composition having a nematic phase comprising three components, wherein the first component is at least one compound selected from the group of compounds represented by Formula (1), the second component is at least one compound selected from the group of compounds represented by Formulas (2-1) and (2-2), and the third component is at least one compound selected from the group of compounds represented by Formulas (3-1) and (3-2): wherein R 1 is alkenyl having approximately 2 to approximately 12 carbons, alkadienyl having approximately 4 to approximately 12 carbons, or alkenyl having approximately 2 to approximately 12 carbons, arbitrary hydrogen of which is replaced by fluorine; R 2 is alkyl having approximately 1 to approximately 12 carbons or alkenyl having approximately 2 to approximately 12 carbons; Y 1 is fluorine or chlorine; Y 2 is fluorine or trifluoromethoxy; X 1 and X 2 are each independently hydrogen or fluorine; and Z 1 and Z 2 are each independently a single bond or —CH 2 CH 2 —.