Patent ID: 7718233

Claim:
A liquid crystal composition comprising at least one compound selected from a group of compounds represented by formula (1) as a first component, at least one compound selected from a group of compounds represented by formulae (2-1), (3-1) to (3-6) and (4-1) as a second component, and at least one compound selected from a group of compounds represented by formulae (5-1), (5-2), (6-1), (6-2) and (7-1) as a third component, having a positive dielectric anisotropy, and having a nematic phase: wherein R 1 and R 2 are independently alkyl; R 7 is alkenyl; and R 11 and R 12 are alkyls having different carbon numbers; and wherein the third component at least includes a compound selected from the group of compounds represented by formula (7-1).