| 摘要 |
PROBLEM TO BE SOLVED: To provide: a compound of negative dielectric anisotropy of a great absolute value, highly compatible with another liquid crystal compound; a liquid crystal composition of negative dielectric anisotropy that does not precipitate even at a low temperature and has a small rotation viscosity coefficient; and a display element. SOLUTION: There are disclosed a difluorobenzene derivative represented by formula (I), a nematic liquid crystal composition comprising the same, and a display element employing the same. In the formula, R represents a 1-8C alkyl group, a 1-7C alkoxy group, a 2-8C alkenyl group, or a 2-7C alkenyloxy group; A represents a cyclohexyl group or a phenyl group that may be substituted with a fluorine atom; B represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group that may be substituted with a fluorine atom; and X<SP>1</SP>and X<SP>2</SP>each independently represent a single bond, -C<SB>2</SB>H<SB>4</SB>-, -CH<SB>2</SB>O-, -CF<SB>2</SB>O-, -C<SB>3</SB>H<SB>6</SB>O- or -C<SB>4</SB>H<SB>8</SB>-. COPYRIGHT: (C)2011,JPO&INPIT
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