DIFLUORIDE DERIVATIVE AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME.

摘要

A difluoride derivative represented by the general formula: R<1>-(A<1>-Y<1>)m-A<2>-CF=CF-C IDENTICAL C-A<3>-(Y<2>-A<4>)n-R<2>, wherein A<1> through A<4> represent each trans-1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-phenylene; m and n represent each 0 or 1; and R<1> and R<2> represent each C1-C10 alkyl, halogen or cyano. The compound is lowly viscous and light-stable, and hence can provide a liquid crystal composition having high response speed.