Search Patents
  • Liquid crystal display
    Patent number: 9835890
    Abstract: The present invention relates to a liquid crystal (LC) display of the FFS type comprising a liquid crystal medium with negative dielectric anisotropy and a di- or multireactive polymerizable compound, and an alignment layer inducing planar alignment in the LC medium.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: December 5, 2017
    Assignee: MERCK PATENG GMBH
    Inventors: Martin Engel, Helmut Haensel, Nico John
  • Nematic liquid-crystal mixture, and displays containing same
    Patent number: 7220464
    Abstract: A nematic liquid-crystal mixture contains a compound of formula I in which R11 and R12 are as defined in the specification, and a liquid-crystal displays containing same.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: May 22, 2007
    Assignee: Merck Patent Gesellschaft
    Inventors: Harald Hirschmann, Volker Reiffenrath
  • LIQUID-CRYSTAL DISPLAY
    Publication number: 20140240653
    Abstract: The present invention relates to the use of LC (liquid-crystal) compounds and LC media comprising them in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.
    Type: Application
    Filed: May 9, 2014
    Publication date: August 28, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Seung-Eun LEE, Eun Young KIM, Dong-Mee SONG, Eun-Kyu LEE
  • Nematic liquid-crystal composition
    Patent number: 6174572
    Abstract: The invention relates to nematic liquid-crystal compositions comprising bisalkenyl compounds of the formula I and to their use in plasma-addressed LCDs.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: January 16, 2001
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Harald Hirschmann, Sven Sch{umlaut over (u)}pfer, Marcus Reuter
  • Liquid-crystalline medium
    Publication number: 20020060311
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I 1
    Type: Application
    Filed: November 2, 2001
    Publication date: May 23, 2002
    Applicant: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Kazuaki Tarumi, Brigitte Schuler, Eike Poetsch, Volker Reiffenrath, Yukiomi Tanaka
  • Liquid-crystalline medium
    Patent number: 7455894
    Abstract: A liquid-crystalline medium based on a mixture of polar compounds, containing one or more compounds of the formula I in which R, Y1, Y2 and X have the meanings indicated in Claim 1.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: November 25, 2008
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Elvira Montenegro
  • TN and STN liquid-crystal displays
    Publication number: 20020064607
    Abstract: The invention relates to TN and STN liquid-crystal displays and to the novel nematic liquid-crystal mixtures used therein, characterized in that they comprise one or more compounds of the formula I 1
    Type: Application
    Filed: June 19, 2001
    Publication date: May 30, 2002
    Applicant: Merck Patent GmbH
    Inventors: Harald Hirschmann, Martina Weidner, Sven Schupfer, Peer Kirsch
  • Liquid-crystalline medium
    Publication number: 20030039769
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of formula I 1
    Type: Application
    Filed: April 22, 2002
    Publication date: February 27, 2003
    Applicant: Merck Patent GmbH
    Inventors: Seung-Eun Lee, Nobuo Kubo, Masahiro Iijima, Hideo Ichinose, Yukiomi Takana, Shinji Nakajima, Yasushi Sugiyama, Takanori Takeda
  • LIQUID-CRYSTALLINE MEDIUM
    Publication number: 20120314146
    Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula (I), in which R0 has the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.
    Type: Application
    Filed: January 25, 2011
    Publication date: December 13, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Michael Wittek, Brigitte Schuler, Lars Lietzau
  • Liquid-crystalline medium
    Publication number: 20020061368
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I 1
    Type: Application
    Filed: November 2, 2001
    Publication date: May 23, 2002
    Applicant: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Kazuaki Tarumi, Brigitte Schuler, Eike Poetsch, Volker Reiffenrath, Yukiomi Tanaka
  • Liquid-crystalline medium
    Patent number: 6544603
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: April 8, 2003
    Assignee: Merck Patent GmbH
    Inventors: Kazuaki Tarumi, Brigitte Schuler, Eike Poetsch
  • LIQUID-CRYSTAL DISPLAY
    Publication number: 20110255048
    Abstract: The present invention relates to liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.
    Type: Application
    Filed: November 26, 2009
    Publication date: October 20, 2011
    Applicant: Merck Patent Gesellschaft MIT Beschraenkter Haftung
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stepham Derow
  • Liquid-crystalline medium
    Patent number: 7670655
    Abstract: Disclosed are liquid-crystalline mediums containing one or more compounds of formula I and uses thereof for electro-optical purposes, e.g., to electro-optical liquid-crystal displays.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: March 2, 2010
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Lars Lietzau
  • Liquid-crystalline medium
    Patent number: 8821757
    Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula (I), in which R0 has the meanings indicated in Claim 1, and to the use thereof in electro-optical liquid-crystal displays.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: September 2, 2014
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Brigitte Schuler, Lars Lietzau
  • Liquid-Crystalline Medium
    Publication number: 20080315157
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds which comprises at least one compound of the formula (I) in which R11, R12 and Z1 have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display based on the ECB, FFS or IPS effect.
    Type: Application
    Filed: December 8, 2006
    Publication date: December 25, 2008
    Applicant: MERCK PATENT GESELLSCHAFT
    Inventors: Melanie Klasen-Memmer, Volker Reiffenrath
  • Liquid-crystalline medium
    Patent number: 6613401
    Abstract: Liquid-crystalline media comprising one or more compounds of formula A and at least one compound of formula B are suitable for use in TN and STN displays.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: September 2, 2003
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Sven Schüpfer, Renate Graulich, Martina Weidner
  • Liquid-crystalline medium and liquid-crystal display having high twist
    Patent number: 6858268
    Abstract: The present invention relates to a liquid-crystalline medium having high twist, to the use thereof for electro-optical purposes, and to displays containing this medium.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: February 22, 2005
    Assignee: Merck Patent GmbH
    Inventors: Juliane Suermann, Meike Krumwiede
  • Liquid-crystalline medium
    Patent number: 10351771
    Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which R1 has the meanings indicated in Claim 1, and to the use thereof in liquid-crystalline media and in electro-optical liquid-crystal displays.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: July 16, 2019
    Assignee: Merck Patent GmbH
    Inventors: Mark Goebel, Lars Lietzau, Sabine Schoen, Andreas Pohle
  • Liquid crystalline medium
    Patent number: 7658978
    Abstract: The invention relates to a liquid crystalline medium containing one or more compounds of formula I, wherein R1 and R2 have the meanings described in claim 1, to its use for electrooptical purposes, and to displays containing this medium.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 9, 2010
    Assignee: Merck Patent Gesellschaft
    Inventors: Harald Hirschmann, Volker Reiffenrath
  • Liquid-crystalline medium
    Patent number: 7622165
    Abstract: Disclosed are a liquid-crystalline medium, which contains one or more compounds of formula I their use for electro-optical purposes, to displays containing this medium, and to novel LC compounds for use in LC media and displays.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: November 24, 2009
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Lars Lietzau