| abstract |
A liquid crystalline compound is provided. The liquid crystalline compound has the general physical properties required for the compound, such as stability to heat, light, etc., low viscosity, suitable magnitude of the refractive index anisotropy value, suitable magnitude of the dielectric anisotropy value, a steep electrooptical character, a wide temperature range of nematic phase, and an excellent compatibility with other liquid crystal compounds, especially a liquid crystalline compound having the wide temperature range of nematic phase. A compound represents by fomula (i): for example, R1 and R2 are alkyl having 1 to 8 carbon atoms or alkenyl having 2 to 8 carbon atoms; ring A1 is trans-1, 4-cyclohexylene or 1, 4-phenylene; ring A2 is trans-1, 4-cyclohexylene or 2, 3-difluoro-1, 4-phenylene; Q1 and Q2 are fluorine or chlorine; and h is 0, 1 or 2. |