Patent ID: 11939512
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C  G

Claim 6:
7. The liquid-crystalline medium according to claim 1, wherein the medium comprises one or more compounds selected from the group of compounds of formulae IIA to VIII, wherein, , each, independently of one another, denote, identically or differently, denotes a halogenated or unsubstituted alkyl or alkoxy radical having 1 to 15 C atoms, where, in addition, one or more CH2 groups in these radicals may each be replaced, independently of one another, by —C≡C—, —CF2O—, —CH═CH—,, , —O—, —CO—O— or —O—CO— in such a way that O atoms are not linked directly to one another,
X20 identically or differently, denotes F, Cl, CN, SF5, SCN, NCS, a halogenated alkyl radical having 1 to 6 C atoms, a halogenated alkenyl radical having 2 to 6 C atoms, a halogenated alkoxy radical having 1 to 6 C atoms, or a halogenated alkenyloxy radical having 2 to 6 C atoms, and
Y20, Y21, Y22, Y23, Y24 each, identically or differently, denote H or F,
Z20 denotes —C2H4—, —(CH2)4—, —CH═CH—, —CF═CF—, —C2F4—, —CH2CF2—, —CF2CH2—, —CH2O—, —OCH2—, —COO— or —OCF2—, and, in formulae V to VIII, Z20 can also be —CF2O—,
r denotes 0 or 1, and
s denotes 0 or 1.