Patent ID: 8889035

Claim:
A liquid crystal composition that has a nematic phase and contains at least one compound selected from the group of compounds represented by formula (1) as a first component and at least one compound selected from the group of compounds represented by formula (2) as a second component: wherein, R 1 is 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 at least one of hydrogen is replaced by fluorine; R 2 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R 3 is alkenyl having 2 to 12 carbons, or —CH═CF 2 ; ring A is independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, pyrimidine-2,5-diyl, 1,3-dioxane-2,5-diyl or tetrahydropyran-2,5-diyl; ring B is 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl or tetrahydropyran-2,5-diyl; Z 1 is independently a single bond, ethylene, vinylene, methyleneoxy, carbonyloxy or difluoromethyleneoxy; and m is 1, 2 or 3.