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:
Mar. 06, 2007
Filed:
Mar. 17, 2005
Georg Weber, Erzhausen, DE;
Ludwig Pohl, Darmstadt, DE;
Reinhard Hittich, Modautal, DE;
Herbert Plach, Darmstadt, DE;
Bernhard Scheuble, Yokohama, JP;
Takamasa Oyama, Fukami-nishi, JP;
Bernhard Rieger, Münster-Altheim, DE;
Hans Adolf Kurmeier, Seeheim-Jugenheim, DE;
Ekkehard Bartmann, Erzhausen, DE;
Georg Weber, Erzhausen, DE;
Ludwig Pohl, Darmstadt, DE;
Reinhard Hittich, Modautal, DE;
Herbert Plach, Darmstadt, DE;
Bernhard Scheuble, Yokohama, JP;
Takamasa Oyama, Fukami-nishi, JP;
Bernhard Rieger, Münster-Altheim, DE;
Hans Adolf Kurmeier, Seeheim-Jugenheim, DE;
Ekkehard Bartmann, Erzhausen, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
Described are matrix liquid crystal displays having two plane parallel support plates which together with a frame form a cell, integrated non-linear elements for switching individual picture elements on the support plates and a nematic liquid crystal mixture which is present in the cell and has a positive dielectric anisotropy and high resistivity. The liquid crystal mixture has a nematic phase range of at least 60° C., a maximum viscosity at 20° C. of 30 mPa·s and a mean dielectricity constant ε≦8. The liquid crystal mixture contains: a) at least 10% by weight of a liquid-crystalline component B having one or more compounds of the following formulae: and b) up to 90% by weight of a liquid-crystalline component A having one or more compounds with a dielectric anisotropy of −1.5 to 1.5 of the formula I: