Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition containing said liquid crystal compound and liquid crystal display device using said composition
Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition containing said liquid crystal compound and liquid crystal display device using said composition
申请人:Chisso Corporation
公开号:EP0982387A1
公开(公告)日:2000-03-01
A liquid crystal compound which has -C(=CH2)CH2- and/or -CH2C(=CH2)- groups and a ring represented by the following general formula (1) in the general structure of the compound:
wherein W1 and W2 each independently represents a fluorine or chlorine atom, provided that each atom constituting the compound may be substituted with its isotope. The liquid crystal compound has a negative dielectric anisotropy value whose absolute value is large, a low viscosity, a controlled optical anisotropy value, a high specific resistance and a high voltage holding ratio and is stable against heat and irradiation with ultraviolet rays.