Abstract: The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.
Type:
Grant
Filed:
December 18, 2006
Date of Patent:
November 4, 2008
Assignee:
Merck Patent Gesellschaft Mit Beschrankter Haftung
Inventors:
Georg Weber, Ludwig Pohl, Reinhard Hittich, Herbert Plach, Bernhard Scheuble, Takamasa Oyama, Bernhard Rieger, Hans Adolf Kurmeier, Ekkehard Bartmann
Abstract: Thermal transfer ribbons which employ a reflective sensor marker of a small size for detecting the end of the ribbon and also thermal transfer ribbons which employ a reflective sensor marker and a transparent sensor marker for detecting the end of the ribbon.
Type:
Grant
Filed:
October 9, 2003
Date of Patent:
January 24, 2006
Assignee:
NCR Corporation
Inventors:
Mark E. Keeton, Thomas J. Obringer, Richard D. Puckett, Jeffery S. Denton
Abstract: The invention relates to pentafluorosulfuranylbenzene derivatives of the formula I
in which R1, A1, A2, Z1, L1, L2, L3 and n are as defined herein and to the use thereof in liquid-crystalline media.
Type:
Grant
Filed:
June 27, 2001
Date of Patent:
October 7, 2003
Assignee:
Merck GmbH
Inventors:
Peer Kirsch, Joachim Krause, Michael Heckmeier
Abstract: Optical transducers for measuring a contaminant in a gas are disclosed, whereby said contaminant interacts with a liquid crystalline phase as a sensing element in a flow cell. According to the invention nematic crystalline phases on a orientation layer are used. Means are provided to measure or to detect changes of the refractive index of said liquid crystalline phase caused by interaction of said contaminant with said liquid crystalline phase. In preferred embodiments the means for measuring or for detecting the refractive index is a Mach-Zehnder interferometer, a grating coupler, or a device for e.g. visual detection, whereby the flow cell is placed between two linearly polarizing filters, and whereby the two axis of polarization are crossed. Furthermore optical transducers are disclosed, which contain an isotropic dopant in a liquid crystalline phase.
Type:
Grant
Filed:
July 28, 1998
Date of Patent:
October 24, 2000
Assignee:
Merck Patent Gesellschaft mit Beschrankter Haftung
Inventors:
Detlef Pauluth, Joachim Krause, Gunter Gauglitz, Bernd Drapp