Liquid crystal compounds

US11542433B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Lars Lietzau · Darmstadt, DE
• Volker Reiffenrath · Roßdorf, DE
• Mark Goebel · Darmstadt, DE

Key dates

• Filing date: Jul 17, 2017
• Grant date: Jan 3, 2023
• Expiry date: Nov 25, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2323/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to compounds of the formula I, in which R, A, n, L1, L2, L3 and X have the meanings given in Claim 1, to a process for their preparation, and to liquid-crystalline media comprising at least one compound of the formula I and electro-optical displays containing a liquid-crystalline medium of this type.