An object of the present invention is to provide novel liquid crystalline compounds which have bicyclo[1.1.1]pentane structure and make liquid crystal compositions principally for TFT display mode, STN display mode, or TN display mode develop preferable various physical properties, particularly liquid crystalline compounds from which liquid crystal compositions by which driving at a low voltage and a high speed response are possible and which have a high reliability can be produced;
to provide liquid crystal compositions comprising the compound; and
to provide liquid crystal display devices fabricated by using the composition: the liquid crystalline compounds can be expressed by the general formula (1)
wherein R1, A0 to A3, Z0 to Z3, X, ℓ, m, n, and 0 are defined hereinbefore.
本发明的一个目的是提供具有双环[1.1.1]
戊烷结构的新型
液晶化合物,用于制备主要用于TFT显示模式、
STN显示模式或TN显示模式的
液晶组合物,开发出各种理想的物理性质,特别是可以通过这些
液晶化合物制备出驱动电压低且响应速度快、具有高可靠性的
液晶组合物;提供包含该化合物的
液晶组合物;以及提供通过使用该组合物制造的
液晶显示装置:
液晶化合物可以用通用公式(1)表示,其中R1、A0至A3、Z0至Z3、X、ℓ、m、n和o如前所述定义。