Patent ID: 7399427
Filing Date: 2008-07-15
Classification: C09K

Abstract:
1. A liquid crystal composition comprising at least one compound selected from a group of compounds represented by formula (1) as a first component, at least one compound selected from a group of compounds represented by formula (2) as a second component, at least one compound selected from a group of compounds represented by formula (3) as a third component, and at least one compound selected from a group of compounds represented by formula (4) and formula (5) as a fourth component: wherein R 1 is alkyl; R 2 is alkenyl; R 3 is alkyl or alkenyl; A 1 is 1,4-cyclohexylene or 1,4-phenylene; A 2 is 1,4-phenylene or 2,6-difluoro-1,4-phenylene; Z 1 is a single bond or —COO—; Z 2 is a single bond or —(CH 2 ) 2 —; Z 3 is a single bond, —COO— or —CF 2 O—; Y 1 is alkyl, fluorine, chlorine or —OCF 3 ; and Y 2 is fluorine or —OCF 3 .