Patent ID: 7767110

Claim:
A liquid crystal composition having a negative dielectric anisotropy comprising two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) to (1-3), and the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3): wherein in formulas (1-1) to (1-3) and formulas (2-1) to (2-3), R 1 is independently alkyl or alkenyl; R 3 is independently alkyl; R 2 , R 4 and R 5 are each independently alkyl, alkenyl or alkoxy; ring B is 1,4-cyclohexylene or 1,4-phenylene; and Z 1 is independently a single bond, —(CH 2 ) 2 —, —OCH 2 — or —CH 2 O—.