Search Patents
  • Liquid-crystalline medium
    Patent number: 11453824
    Abstract: The invention relates to a liquid-crystalline medium and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PM-VA, SS-VA, PALC, IPS, PS-IPS, FFS or PS-FFS effect.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 27, 2022
    Assignee: Merck Patent GmbH
    Inventors: Harald Hirschmann, Martina Windhorst
  • Liquid-crystalline medium
    Publication number: 20030234384
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more ester compounds of the formula I 1
    Type: Application
    Filed: February 6, 2003
    Publication date: December 25, 2003
    Applicant: Merck Patent GmbH
    Inventors: Michael Heckmeier, Sabine Schoen, Peer Kirsch, Brigitte Schuler, Izumi Saito
  • LIQUID-CRYSTAL DISPLAY
    Publication number: 20110101269
    Abstract: The present invention relates to a liquid-crystal (LC) display of the PS (polymer stabilised) or PSA (polymer sustained alignment) type, and to polymerisable compounds and LC media for use in PS (polymer stabilised) and PSA displays.
    Type: Application
    Filed: July 31, 2008
    Publication date: May 5, 2011
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Georg Bernatz, Andreas Taugerbeck
  • Device for regulating the passage of light
    Patent number: 10626666
    Abstract: The present application relates to a device for regulating the passage of light which is characterised in that it comprises a layer comprising a liquid-crystalline mixture containing a characteristic structural element.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: April 21, 2020
    Assignee: Merck Patent GmbH
    Inventors: Michael Junge, Andreas Beyer, Ursula Patwal, Peer Kirsch, Susann Beck
  • 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-crystal display
    Patent number: 8940375
    Abstract: The present invention relates to a liquid-crystal (LC) display of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, and to polymerizable compounds and LC media for use in PS (polymer stabilized) and PSA displays.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: January 27, 2015
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Georg Bernatz
  • 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
    Publication number: 20020093004
    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: July 2, 2001
    Publication date: July 18, 2002
    Applicant: Merck Patent Gesellschaft mitbeschrankter Haftung
    Inventors: Kazuaki Tarumi, Brigitte Schuler, Eike Poetsch, Volker Reiffenrath, Yukiomi Tanaka
  • Liquid-crystalline medium
    Patent number: 8017200
    Abstract: Disclosed are a liquid-crystalline medium, which contains a compound of formula I and the use thereof for electro-optical purposes, in particular for TN, TFT, IPS or OCB displays.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: September 13, 2011
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Elvira Montenegro, Konstantin Schneider, Brigitte Schuler
  • Furochroman derivatives
    Patent number: 7678929
    Abstract: Disclosed are furochroman compounds of formula I liquid-crystal media which contains the compounds of formula I, and the use of the media in electro-optical displays, in particular in VAN LCDs.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: March 16, 2010
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Axel Jansen, Andreas Taugerbeck, Melanie Klasen-Memmer, Georg Bernatz
  • Liquid crystalline medium
    Patent number: 9777216
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS or IPS effect.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 3, 2017
    Assignee: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Konstantin Schneider
  • Liquid-crystalline medium
    Publication number: 20030064172
    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: April 3, 2003
    Applicant: Merck Patent Gesellschaft mitbeschrankter Haftung
    Inventors: Kazuaki Tarumi, Brigitte Schuler, Eike Poetsch, Volker Reiffenrath, Yukiomi Tanaka
  • Chiral compounds
    Patent number: 7771800
    Abstract: The invention relates to chiral compounds, methods of their preparation, and to their use in optical, electrooptical, electronic, semiconducting or luminescent components or devices, and in decorative, security, cosmetic or diagnostic applications.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: August 10, 2010
    Assignee: Merck Patent GmbH
    Inventor: Louise Diane Farrand
  • Liquid-crystalline medium
    Patent number: 7678432
    Abstract: The invention relates to a liquid-crystalline medium, characterized in that it comprises one or more compounds of the formula I in which R1, R2 and X1-12 have the meanings indicated in Claim 1.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: March 16, 2010
    Assignee: Merck Patent GmbH
    Inventors: Michael Wittek, Brigitte Schuler, Elvira Montenegro
  • Chiral compounds
    Patent number: 7771801
    Abstract: The invention relates to chiral compounds, methods of their preparation, and to their use in optical, electrooptical, electronic, semiconducting or luminescent components or devices, and in decorative, security, cosmetic or diagnostic applications.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: August 10, 2010
    Assignee: Merck Patent GmbH
    Inventor: Louise Diane Farrand
  • 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: 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
  • Dye compounds
    Patent number: 10202508
    Abstract: Mixtures containing at least one dye compound having a diketopyrrolopyrrole structure and at least one further liquid-crystalline compound are suitable for use in devices for regulating the entry of light into a space.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: February 12, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Qiong Tong, Peer Kirsch, Michael Junge, Ursula Patwal, Andreas Beyer
  • 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
  • Fluorinated indenes and 1,7-dihydroindacenes of negative dielectric anisotrophy
    Publication number: 20030222243
    Abstract: Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (&Dgr;&egr;<0) 1
    Type: Application
    Filed: April 4, 2003
    Publication date: December 4, 2003
    Applicant: Merck Patent GmbH
    Inventors: Lars Lietzau, Melanie Klasen-Memmer, Matthias Bremer