Liquid crystal compositions are provided which have particularly a low threshold voltage, excellent miscibility at low temperatures, and wide nematic phase range while satisfying several characteristics required of liquid crystal composition for AM-LCD.
Disclosed are liquid crystal compositions containing, as a first component, at least one compound expressed by general formula either (I-1) or (I-2), and containing, as a second component, at least one compound expressed by any one of general formulas (II-1) to (II-7)
wherein n is an integer of 1 to 10, Z1, represents -CH2CH2- or single bond, X represents F, OCF3, or CF3, and Y represents H or F.
The liquid crystal compositions of the present invention are useful as liquid crystal material for low voltage in several modes such as active matrix mode and STN mode.
本发明提供的液晶组合物尤其具有低阈值电压、低温下优异的混溶性和宽向列相范围,同时满足
AM-LCD 液晶组合物所需的若干特性。
所公开的液晶组合物含有至少一种通式(I-1)或(I-2)表示的化合物作为第一组分,并含有至少一种通式(II-1)至(II-7)中任意一种表示的化合物作为第二组分。
其中 n 为 1-10 的整数,Z1 代表 -CH2CH2- 或单键,X 代表 F、O 或
CF3,Y 代表 H 或 F。
本发明的液晶组合物可用作多种模式(如有源矩阵模式和 STN 模式)的低电压液晶材料。