| 摘要 |
A liquid crystal composition including a compound of formula (1), a compound of formula (2), a compound of formula (3), and a compound of formula (4): wherein R1 and R2 are independently an alkyl group; R3 is an alkyl or alkenyl group; Y1 is fluorine or -OCF3; Y2 is an alkyl group, an alkoxy group, fluorine, chlorine, or -OCF3; X1 is hydrogen or fluorine; A1 is 1,4-cyclohexylene or 1,4-phenylene; A2 is 1,4-cyclohexylene, 1,4-phenylene or 2,6-difluoro-1,4-phenylene; Z1 is a single bond or -(CH2)2-; Z2 is a single bond, -(CH2)2-, -COO-, or -CF2O-; and Z3 is a single bond or -COO-.
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