Patent ID: 8592008
Filing Date: 2013-11-26
Classification: C09K

Abstract:
1. A liquid crystal composition that has a nematic phase; and contains at least one compound selected from the group of compounds represented by formula (1) as a first component, contains at least one compound selected from the group of compounds represented by formula (2) as a second component and contains at least one compound selected from the group of compounds represented by formula (3) as a third component: wherein R 1 and R 4 are independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R 2 and R 3 are 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 at least one of hydrogen is replaced by fluorine; ring A, ring B, ring C, ring D and ring E are independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, pyrimidine-2,5-diyl, 1,3-dioxane-2,5-diyl or tetrahydropyran-2,5-diyl; X 1 , X 2 , X 9 and X 10 are independently hydrogen or fluorine; Y 1 and Y 4 are independently fluorine, chlorine, trifluoromethyl or trifluoromethoxy; Y 2 is hydrogen, fluorine or chlorine; Y 3 is fluorine or chlorine; Z 1 , Z 2 , Z 3 and Z 4 are independently a single bond, ethylene, carbonyloxy or difluoromethyleneoxy; m is 1, 2 or 3; n is 0, 1 or 2; and a sum of m and n is 1, 2 or 3; p is 1, 2 or 3 and q is 1, 2 or 3.