Patent ID: 8535563

Claim:
A liquid crystal composition having a nematic phase and including at least one compound selected from the group of compounds represented by formula (1) as a first component, at least one compound selected from the group of compounds represented by formula (2) as a second component, at least one compound selected from the group of compounds represented by formula (3) as a third component and at least one compound selected from the group of compounds represented by formula (5) as a fourth component and at least one compound selected from the group of compounds represented by formula (5-1) as a fifth component: wherein R 1 , R 2 and R 3 are 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; R 5 and R 6 are independently alkyl 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 2 and A 3 are independently 1,4-cyclohexylene, 1,4-henylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene,or 2,5-difluoro-1,4-phenylene; Z 3 is independently a single bond, ethylene, or carbonyloxy; and m is 1, 2 or 3; Z 3 is single bond or ethylene when m is 3; X 1 , X 2 , X 3 , X 4 , X 5 and X 6 are independently hydrogen or fluorine; Y 1 and Y 2 are independently fluorine, chlorine or trifluoromethoxy.