Patent ID: 7709064

Claim:
A liquid crystal composition having a nematic phase comprising two components, wherein the first component is at least one compound selected from the group of compounds represented by Formula (1-1), and the second component is at least one compound selected from the group of compounds represented by Formulas (2-1), (2-2) and (2-3): wherein R 1 , R 2 , R 3 and R 5 are independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, or alkenyl having 2 to 12 carbons, arbitrary hydrogen of which are replaced by fluorine; R 4 is independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; ring A and ring B are independently 1,4-phenylene or 1,4-cyclohexylene; Z 1 , Z 2 , Z 3 and Z 4 are independently a single bond, —(CH 2 ) 2 —, —CH 2 O— or —OCH 2 —; X 5 , X 6 , X 7 , X 8 , X 9 and X 10 are each independently fluorine or chlorine, provided that X 5 and X 6 are not simultaneously chlorine, X 7 and X 8 are not simultaneously chlorine, and X 9 and X 10 are not simultaneously chlorine.