Liquid crystal composition and liquid crystal display device

A liquid crystal composition having a negative dielectric anisotropy, comprising:

• a first component which is at least one compound selected from the group of compounds represented by formula (1);
• a second component which is at least one compound selected from the group of compounds represented by formula (2);
• and
• a third component which is at least one compound selected from the group of compounds represented by formula (3):
• wherein R1, R2, R4, R5 and R6 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine;
• R3 is alkenyl having 2 to 12 carbons;
• ring A, ring B and ring C are each independently 1,4-cyclohexylene or 1,4-phenylene;
• ring D and ring E are each independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, or 2,5-difluoro-1,4-phenylene;
• Z1 and Z2 are each independently a single bond, ethylene, methyleneoxy or carbonyloxy;
• and m and n are each independently 1, 2 or 3;
• p and q are each independently 0, 1, 2 or 3;
• and the sum of p and q is 3 or less.