Patent ID: 8313670

Claim:
A liquid crystal composition that has negative dielectric anisotropy and comprises two components, wherein a first component is at least one compound selected from the group of compounds represented by formula (1), and a second component is at least one compound selected from the group of compounds represented by formula (2): wherein R 1 , R 2 , R 3 and R 4 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; the ring A and the ring B are each independently 1,4-cyclohexylene or 1,4-phenylene; one of the ring C and the ring D is 2,3-difluoro-1,4-phenylene and the other is 1,4-cyclohexylene or 1,4-phenylene; Z 1 and Z 3 are each independently a single bond, ethylene or difluoromethyleneoxy; and Z 2 is methyleneoxy, difluoromethyleneoxy or carbonyloxy.