Patent ID: 11920075
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 25:
26. An LC medium, having positive dielectric anisotropy and comprising:
one or more compounds of formula IA and one or more compounds of formula IB, in which R1 and R2 n each case, independently of one another, denote alkyl, alkoxy, oxaalkyl or fluoroalkyl, in each case having 1 to 7 C atoms,
wherein the LC medium comprises no compounds of the formulae IA and IB in which one or both radicals R1 or R2 contain a C═C double bond
and wherein of the one or more compounds of formula IA at least one of formula IA1a and/or formula IA1b is present, , and of the one or more compounds of formula IB at least a compound of formula IB1a is present, , and
one or more stabilizers of the following formulae, in which the individual radicals, in each case independently of one another and identically or differently on each occurrence, have the following meaning
Ra-d C1-10-straight-chain or C3-10-branched alkyl,
Xs H, CH3, OH or O*,
As C1-20-straight-chain, C3-20-branched or C3-20-cyclic alkylene, which is optionally substituted, and
n an integer from 1 to 6.