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:
Jun. 24, 2008
Filed:
Jun. 23, 2004
Atsutaka Manabe, Bensheim, DE;
Erdal Durmaz, Albig, DE;
Eike Poetsch, Muehltal, DE;
Volker Reiffenrath, Rossdorf, DE;
Michael Heckmeier, Hemsbach, DE;
Atsutaka Manabe, Bensheim, DE;
Erdal Durmaz, Albig, DE;
Eike Poetsch, Muehltal, DE;
Volker Reiffenrath, Rossdorf, DE;
Michael Heckmeier, Hemsbach, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive or negative dielectric anisotropy which is characterised in that it comprises one or more compounds of the general formula I in which —CH═CH—, —C≡C—, —CO—, —CO—O, —O—CO— or —O—CO—O— in such a way that 0 atoms are not linked directly to one another,to the use thereof for electro-optical purposes, and to electro-optical display devices which contain this medium.