| 摘要 |
The invention relates to a liquid-crystalline phase having particularly advantageous properties, which contains at least one compound of the formula I RS-Phe-Z<1>-(A<1>-Z<2>)n-A<2>-R<1> in which R and R<1> are each an alkyl group having 1-12 carbon atoms in which, in addition, one or two non-adjacent CH groups which are not bonded to sulphur may be replaced by O atoms and/or -CH2- groups and/or -CH=CH-groups, and R is additionally H, Phe is 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl atoms and/or CH3 groups and/or CN groups, Z<1> and Z<2> are -CH2CH2-, -OCH2-, -CH2O- or a single bond, A<1> and A<2> are each 1,4-bicyclo(2,2,2)octylene or 1,4-cyclohexylene which is unsubstituted or substituted in the 1- and/or 4-position by F, Cl, Br, CH3, CH3O, CF3 and/or CN, or are each 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl atoms and/or CH3 groups and/or CN groups and in which, in addition, one or two CH groups may be replaced by N atoms, n is 0, 1 or 2 and to the use in liquid-crystal display elements. d
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