Liquid-crystalline medium
AssigneeMerck Patent GmbH
InventorsHarald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Kristin Weiss
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Abstract
A liquid-crystalline medium which comprises at least one compound selected from the group of compounds of the formulae IA to IH, in which Z1 denotes a single bond, —CH2CH2—, —CH═CH—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO—, —OCO—, —C2F4—, —(CH2)4—, —CHFCHF—, —CF2CH2—, —CH2CF2—, —C≡C—, —CF═CF—, —CH═CHCHO— or —CH2CF2O—, and the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, SA-VA, PS-IPS or IPS effect.
Claims23
A liquid-crystalline medium comprising, at least one compound selected from the group of the compounds of the formulae IA to IH, and wherein the medium has a negative dielectric anisotropy, Δε:
- in which
- Z1 denotes a single bond, —CH2CH2—, —CH═CH—, —CH2O—, —OCH2, —CF2O—, —OCF2—, —COO—, —OCO—, —C2F4—, —(CH2)4—, —CHFCHF—, —CF2CH2—, —CH2CF2—, —CF═CF—, —CH═CHCHO— or —CH2CF2O—, with the proviso that Z1 does not denote a single bond in either the compound of formula IA or the compound of formula IB.
Dependencies are inferred from the claim text.