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US 11,932,797 B2Granted
Liquid-crystalline medium
AssigneeMerck Patent GmbH
InventorsHarald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Kristin Weiss
Life of this patent
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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.
Claims34
A liquid-crystalline medium comprising:
- at least one compound selected from the group of the compounds of the formulae IA and IB,
- in which
- Z1 denotes a single bond;
- and at least one compound selected from formula B(S)-5cy1O-O2:
- wherein the medium has a negative dielectric anisotropy, Δε.
2 more elements
Dependencies are inferred from the claim text.