Patent ID: 7517565

Claim:
A liquid crystal composition comprising at least one compound represented by formula (1) as a first component and at least one compound selected from each group of compounds represented by formulas (2) and (3) as a second component, but not containing a compound represented by formula (4), and having a negative dielectric anisotropy: wherein R 1 is alkyl or alkenyl; R 2 is alkyl or alkoxy; R 3 is alkyl or alkoxymethyl; R 4 is alkyl; R 6 is alkyl, alkenyl or alkoxy; A 1 and A 2 are independently 1,4-cyclohexylene or 1,4-phenylene; A 3 is 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene; Z 1 is a single bond or —COO—; and n is 0 or 1.