Patent ID: 8147929

Claim:
A liquid crystal composition having a nematic phase that comprises two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1), (1-3), (1-4), (1-5), (1-6), (1-7), (1-8) and (1-9), the second, component is at least one compound selected from the group of compounds represented by formula (2): 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 arbitrary hydrogen is replaced by fluorine; R 2 and R 3 are each independently alkenyl having 2 to 12 carbons; X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , X 7 , X 8 and X 9 are each independently hydrogen or fluorine; Y 1 is fluorine, chlorine or trifluoromethoxy.