Patent ID: 8057867
Filing Date: 2011-11-15
Classification: C09K

Abstract:
1. A liquid crystal composition that has a nematic phase and comprises two components, wherein a first component is at least one optically active compound selected from the group of compounds represented by formula (1), and a 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 different each other, and are alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R 4 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; the ring A and the ring B are each independently 1,4-cyclohexylene or 1,4-phenylene; the ring C is independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene or 1,3-dioxane-2,5-diyl; Z 1 is independently carbonyloxy, difluoromethyleneoxy or a single bond; m is 1, 2 or 3; and X 1 and X 2 are each independently hydrogen or fluorine.