Patent ID: 9234134
Filing Date: 2016-01-12
CPC Classification: C09K

Claim Text:
1. A liquid crystal composition which has a negative dielectric anisotropy and contains at least one compound selected from the group of compounds represented by formula (1) as a first component and at least one compound selected from the group of compounds represented by formula (2) as a second component: wherein, R 1 and R 3 are independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R 2 and R 4 are independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; ring A and ring B are independently: X 1 and X 2 are independently fluorine or chlorine; Y 1 is hydrogen or methyl; Z 1 and Z 2 are independently a single bond, ethylene, methyleneoxy or carbonyloxy; k is 0 or 1; m and n are independently 0, 1, 2 or 3, and a sum of m and n is 1, 2 or 3; and when n is 1, R 4 is alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons.