LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

A liquid crystal composition that is wide in nematic phase temperature range, having appropriate optical anisotropy, and that is large in negative dielectric constant anisotropy, being large in specific resistance; in particular, a liquid crystal composition that while satisfying these performance requirements, enables reducing of optical anisotropy and enables lowering of nematic phase lower-limit temperature, preferably lowering to = -20°C; and a liquid crystal display device containing the above liquid crystal composition. There is provided a liquid crystal composition exhibiting a negative dielectric constant anisotropy, comprising a first component of liquid crystal compound having a group of benzene ring having its two adjacent hydrogen atoms replaced by fluorine and chlorine as a group of cyclic structure and a second component of nonhalogenous liquid crystal compound with specified structure. Further, there is provided a liquid crystal display device containing this liquid crystal composition.