Patent ID: 7597944
Filing Date: 2009-10-06
Classification: C09K

Abstract:
1. A liquid crystal composition having a nematic phase comprising a first component that is at least one compound selected from the group of compounds represented by formula (1-1) and formula (1-2), a second component that is at least one compound selected from the group of compounds represented by formula (2-1) and (2-2), and a third compounds represented by formula (3): wherein R 1 is independently alkyl having 1 to 12 carbons, R 2 is independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R 3 is independently alkyl having 1 to 12 carbons; R 4 is independently alkyl having 1 to 12 carbons; alkoxy having from 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons, arbitrary hydrogen of which is replaced by fluorine; Ring A is independently 1,4-phenylene,3-fluoro-1,4-phenylene, or 3,5-difluoro-1,4-phenylene; X 1, X 2, X 3, X 4, X 5 and X 6 are each independently hydrogen or fluorine; Y 1 and Y 2 are fluorine, chroline or trifluorometoxy; n is 1 or 2.