Compound having difluoroalkoxy at its terminal, liquid crystal composition and liquid crystal display element

摘要: PROBLEM TO BE SOLVED: To provide a liquid crystal compound large in the absolute value of Δe, relatively low viscosity, having Δn and showing good compatibility even to temperature, voltage drivable composition display element using same. SOLUTION: The is represented by formula (1) (wherein, R an alkyl, hydrogen, halogen, cyano or rings A are each independently trans-1,4-cyclohexylene, 1,4'-cyclohexenylene 1,4-phenylene, Z single bond, -CH2 CH2 -, O-, -OCH2 -COO-, -OCO-, -CH=CH, -CF2 O- -OCF2 Y hydrogen fluorine but not fluorine, l m 0 1).