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US 2021/0222067 A1Published application
Liquid-crystal medium
AssigneeMerck Patent GmbH
InventorsHarald HIRSCHMANN, Ewgenij WAKARESKO
Life of this patent
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Abstract
The invention relates to a liquid-crystalline medium, in particular based on a mixture of polar compounds, and to the use thereof for an active-matrix display, in particular based on the VA, SA-VA, IPS, PS-IPS, FFS, PS-FFS, UB-FFS or PS-UB-FFS effect.
Claims11
A liquid crystal (LC) medium having negative dielectric anisotropy and comprising one or more compounds selected from the group consisting of formulae B and C and one or more compounds of formula G
- in which the individual radicals, on each occurrence identically or differently, and each, independently of one another, have the following meaning:
- R0, R1, R2 a straight chain or branched alkyl or alkoxy radical having 1 to 15 C atoms, where one or more CH2 groups in these radicals may
- each be replaced, independently of one another, by
- —C≡C—, CF2O—, —OCF2—, —CH═CH—, —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen,
- L1, L2 For Cl,
- X0 F, Cl, CN, SF5, SCN, NCS, a halogenated alkyl radical, a halogenated alkenyl radical, a halogenated alkoxy radical or a halogenated alkenyloxy radical having up to 6 C atoms,
- Y1 O, S or CH2O,
- Z0 —C2H4—, —CH2O—, —CF2O—, —CH═CH— or a single bond.
5 more elements
Dependencies are inferred from the claim text.