Liquid crystalline compounds which exhibit a negative dielectric anisotropy value, have an extremely high voltage holding ratio and a low threshold voltage, are small in their dependency on temperature, hardly exhibit smectic phase, and are excellent in miscibility with other liquid crystal materials at the same time; liquid crystal compositions comprising the compound; and liquid crystal display devices fabricated by using the liquid crystal composition are provided; the liquid crystalline compounds being specific 3,3′-difluorobiphenyl derivatives expressed by the following general formula (1):
提供具有负电介质各向异性值的液晶化合物,具有极高的电压保持比和低的阈值电压,对温度的依赖性小,几乎不表现出液晶相,同时与其他液晶材料混合优秀的液晶组合物;液晶组合物包括该化合物;以及通过使用该液晶组合物制造的液晶显示装置。该液晶化合物为以下通式(1)所表示的特定
3,3'-二氟联苯衍
生物。