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

Claim 5:
6. The liquid-crystalline medium according to claim 1, wherein the medium comprises one or more compounds selected from the group of compounds of formulae CY, PY, and AC, wherein, denotes, denote, , denotes, R1, R2,
RAC1, RAC2 each, independently of one another, denote alkyl having 1 to 12 C atoms, where, in addition, one or two non-adjacent CH2 groups may each be replaced by —O—, —CH═CH—, —CO—, —OCO— or —COO— in such a way that O atoms are not linked directly to one another,
Zx, Zy, ZAC each, independently of one another, denote —CH2CH2—, —CH═CH—, —CF2O—, —OCF2—, —CH2O—, —OCH2—, —CO—O—, —O—CO—, —C2F4—, —CF═CF—, —CH═CH—CH2O— or a single bond,
L1, L2, L3, L4 each, independently of one another, denote F, Cl, CN, OCF3, CF3, CH3, CH2F, or CHF2,
a is 1 or 2,
b is 0 or 1,
c is 0, 1 or 2, and
d is 0 or 1.