DIFLUOROXYMETHANE DERIVATIVE AND LIQUID CRYSTAL COMPOSITION

摘要

A difluoroxymethane derivative represented by general formula (I), which is lowly viscous, has a high permittivity anisotropy and is useful as a low-voltage liquid crystal material for various liquid crystal displays (wherein 1, m and n represent each 0 or 1; rings A1 to A3 represent each independently a 6-membered ring such as trans-1,4-cyclohexylene or 1,4-phenylene; Z1 to Z3 represent each independently a covalent bond or a bonding group such as -CH2CH2-; L1 to L4 represent each hydrogen or halogeno; and X represents halogeno, OCF3, etc.). The compound is useful as a low-voltage liquid crystal material of various modes including active matrix and STN systems.