Patent ID: 7989038

Claim:
A liquid crystal composition having a nematic phase comprising three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), and the second component is at least one compound selected from the group of compounds represented by formula (2), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R 1 and R 2 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A is 1,4-cyclohexylene; 1,4-phenylene; 2-fluoro-1,4-phenylene or 2,6-difluoro-1,4-phenylene; ring B is 1,4-phenylene; 2-fluoro-1,4-phenylene or 2,6-difluoro-1,4-phenylene and X 1 , X 2 , X 3 and X 4 are each independently hydrogen or fluorine.