Patent ID: 9074132
Filing Date: 2015-07-07
Classification: C09K

Abstract:
1. A liquid crystal composition containing 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, and at least one compound selected from the group of compounds represented by formula (3-1) as a third component: wherein P 1 and P 2 are independently a group selected from groups represented by formula (P-1) to formula (P-6); R 1 and R 2 are independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R 3 is independently ethyl or vinyl; R 4 is propyl; ring A and ring B are independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, tetrahydropyran-2,5-diyl, 1,3-dioxane-2,5-diyl or pyrimidine-2,5-diyl, and in the groups, at least one of hydrogen may be replaced by halogen or alkyl having 1 to 12 carbons, or alkyl having 1 to 12 carbons in which at least one of hydrogen is replaced by halogen; ring C and ring E are independently 1,4-cyclohexylene, tetrahydropyran-2,5-diyl, 1,4-phenylene, 2-fluoro-1,4-phenylene or 3-fluoro-1,4-phenylene; ring D is 2,3-difluoro-1,4-phenylene, 2-chloro-3-fluoro-1,4-phenylene, 2,3-difluoro-5-methyl-1,4-phenylene, 3,4,5-trifluoronaphthalene-2,6-diyl or 7,8-difluorochroman-2,6-diyl; Sp is —C═C—O—, —C═C—, —C—C═C—, —O—, —C—C—O—, or —(CO)—O—; Z 1 , Z 2 , and Z 3 are independently a single bond, ethylene, methyleneoxy or carbonyloxy; k is 0, 1, 2 or 3; m is 1, 2 or 3; and n is 0 or 1, and a sum of m and n is 3 or less.