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:
Sep. 18, 2012
Filed:
Jan. 27, 2009
Markus Czanta, Darmstadt, DE;
Harald Hirschmann, Darmstadt, DE;
Michael Wittek, Darmstadt, DE;
Volker Reiffenrath, Roβdorf, DE;
Renate Bender, Darmstadt, DE;
Christian Hock, Mainaschaff, DE;
Brigitte Schuler, Grossostheim, DE;
Markus Czanta, Darmstadt, DE;
Harald Hirschmann, Darmstadt, DE;
Michael Wittek, Darmstadt, DE;
Volker Reiffenrath, Roβdorf, DE;
Renate Bender, Darmstadt, DE;
Christian Hock, Mainaschaff, DE;
Brigitte Schuler, Grossostheim, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I in which the parameters have the meaning indicated in the specification, and optionally one or more compounds selected from the group of the compounds of the formulae II and III in which the parameters have the meaning indicated in the specification, and optionally one or more compounds of the formula IV in which the parameters have the meaning indicated in the specification, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.