The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2019
Filed:
May. 23, 2016
Merck Patent Gmbh, Darmstadt, DE;
Atsutaka Manabe, Bensheim, DE;
Volker Reiffenrath, Rossdorf, DE;
Brigitte Schuler, Grossostheim, DE;
MERCK PATENT GMBH, Darmstadt, DE;
Abstract
A liquid-crystalline medium having a nematic phase, a dielectric anisotropy of 0.5 or more and a ratio of the dielectric constant perpendicular to the director (ε) to the dielectric anisotropy (Δε), i.e. (ε/Δε), of 2.0 or less and comprises one or more compounds of formula I: wherein the parameters have the meaning given in the text. An electro-optical display containing such a medium, particularly in an active-matrix display based on the IPS or FFS effect. Methods for using of the compounds of formula I for improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.