| 摘要 |
<p>Liquid crystal medium (Q) comprises a first dielectrically positive component (A) containing one or more fluoromethoxy substituted benzene compounds (Ia), one or more fluoro substituted benzene compounds (Ib), and one or more another fluoro substituted benzene compounds (Ic), optionally a second dielectrically positive component containing one or more fluoro substituted benzene compounds (II) and substituted benzene compound (III), and optionally a dielectrically neutral component (C) containing one or more cyclohexane compounds (IV). Liquid crystal medium (Q) comprises a first dielectrically positive component (A) containing one or more fluoromethoxy substituted benzene compounds of formula (Ia), one or more fluoro substituted benzene compounds of formula (Ib), and one or more another fluoro substituted benzene compounds of formula (Ic); optionally a second dielectrically positive component containing one or more fluoro substituted benzene compounds of formula (II) and substituted benzene compound of formula (III); optionally a dielectrically neutral component (C) containing one or more cyclohexane compounds of formula (IV). R 1> : 1-7C-alkyl, 1-7C-alkoxy, fluorinated 1-7C-alkyl or fluorinated 1-7C-alkoxy, 2-7C-alkenyl, 2-7C-alkenyloxy, 2-7C-alkoxyalkyl or fluorinated 2-7C-alkenyl; ring A 1> 1>-ring A 1> 3>, ring A 1> 8>, ring A 1> 9>, ring A 2> 1>-ring A 3> 2> : cyclohexan-1,4-yl, cyclohexen-1,4-yl, cyclohexen-3,6yl, [1,3]dioxan-2,5-yl, tetrahydro-pyran-2,5-yl, benzen-1,4-yl, 2-fluoro-benzen-1,4-yl or 1,3-difluoro-benzen-2,5-yl; ring A 1> 4>-ring A 1> 6> : benzen-1,4-yl, 2-fluoro-benzen-1,4-yl or 1,3-difluoro-benzen-5,2-yl; ring A 1> 7> : cyclohexan-1,4-yl, cyclohexen-1,4-yl, cyclohexen-3,6yl, [1,3]dioxan-2,5-yl or tetrahydro-pyran-2,5-yl; Z 1> 1>-Z 1> 5> : -CH 2CH 2-, -CF 2CF 2-, -COO-, trans-CH=CH-, trans-CF=CF-, -CH 2O-, -CF 2O- or a bond; L 1> 1>, L 1> 2> : H, F or Cl; R 2>, R 3> : 1-7C-alkyl, 1-7C-alkoxy, fluorinated 1-7C-alkyl or fluorinated 1-7C-alkoxy, 2-7C-alkenyl, 2-7C-alkenyloxy, 2-7C-alkoxyalkyl or fluorinated 2-7C-alkenyl; L 2> 1>, L 2> 2>, L 3> 1>, L 3> 2> : H or F; X 2>, X 3> : halo, halogenated 1-3C-alkyl or alkoxy, or halogenated 2-3C-alkenyl or alkenyloxy; Z 3> : -CH 2CH 2-, -CF 2CF 2-, -COO-, trans-CH=CH-, trans-CF=CF-, -CH 2O- or a bond; m, n : 0-3; R 4> 1>, R 4> 2> : R 2>; ring A 4> 1>, ring A 4> 2> : cyclohexan-1,4-yl, cyclohexen-1,4-yl, cyclohexen-3,6-yl, benzen-1,4-yl, 2-fluoro-benzen-1,4-yl, 1,3-difluoro-benzen-2,5-yl or 2,3-difluoro-benzen-1,4-yl; Z 4> 1>, Z 4> 2> : -CH 2CH 2-, -COO-, trans-CH=CH-, trans-CF=CF-, -CH 2O-, -CF 2O-, -C?=C- or a bond; and p : 0-2. When: X 2>is not F or OCF 3, m is 2; and X 3>is not F or OCF 3, and Z 3>is not a bond, n is 2. An independent claim is included for a liquid crystal display comprising (Q). [Image] [Image] [Image].</p> |
