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US 12,528,988 B2Granted
Liquid crystal medium
AssigneeMerck Patent GmbH
InventorsConstanze Brocke, Dagmar Klass, Matthias Jost, Amir Hossain Parham
Life of this patent
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Abstract
A compound of formula AN a liquid crystal material comprising a compound of formula AN, and high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tuneable filters, tuneable metamaterial structures, and electronic beam steering antennas, e.g., phased array antennas.
Claims16
A compound having a formula selected from the group consisting of formulae AN-1-1 to AN-4-8:
- in which
- RA denotes H, straight-chain alkyl having 1 to 12 C atoms, or straight-chain alkenyl or straight chain alkynyl each having 2 to 12 C atoms, or branched alkyl having 3 to 12 C atoms or branched alkenyl having 3 to 12 C atoms or branched alkynyl having 4 to 12 C atoms, where one or more CH2-groups may be replaced by
- and where one or more non-adjacent CH2-groups may be replaced by O, and where in all of these groups one or more H atoms may be replaced by F.
Dependencies are inferred from the claim text.