Patent ID: 8206795

Claim:
The invention concerns a liquid crystal composition having a negative dielectric anisotropy that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formula (2): wherein R 1 and R 2 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; ring A is independently tetrahydropyran-2,5-diyl, 1,4-cyclohexylene or 1,4-phenylene; at least one ring A is tetrahydropyran-2,5-diyl; ring B and ring C are each independently 1,4-cyclohexylene or 1,4-phenylen; Z 1 and Z 2 are each independently a single bond, ethylene, methyleneoxy or carbonyloxy; and m is 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.