Patents by Inventor Melanie Klasen-Memmer

Melanie Klasen-Memmer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9090823
    Abstract: The present invention relates to liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 28, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow
  • Publication number: 20150203758
    Abstract: The invention relates to liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays.
    Type: Application
    Filed: March 31, 2015
    Publication date: July 23, 2015
    Applicant: MERCK PATENT GMBH
    Inventors: Melanie Klasen-Memmer, Marcus Reuter, Rocco Fortte, Detlef Pauluth, Matthias Bremer, Helmut Haensel, Harald Hirschmann
  • Publication number: 20150146155
    Abstract: The present invention relates to a liquid crystal (LC) medium, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type, and to LC displays, especially PS or PSA displays, comprising said LC medium.
    Type: Application
    Filed: May 21, 2013
    Publication date: May 28, 2015
    Applicant: Merck Patent GmbH
    Inventors: Martin Engel, Melanie Klasen-Memmer, Christoph Marten, Stephan Derow
  • Patent number: 9005721
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 14, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best
  • Patent number: 9005720
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: April 14, 2015
    Assignee: Merck Patent GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow, Sabine Schoen, Peter Best
  • Patent number: 8999459
    Abstract: The present invention relates to a liquid-crystal (LC) display of the PSA (polymer sustained alignment) type, and to polymerizable compounds and LC media for use in PSA displays.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 7, 2015
    Assignee: Merck Patent GmbH
    Inventors: Georg Bernatz, Melanie Klasen-Memmer, Matthias Bremer
  • Patent number: 8968840
    Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (??), which is distinguished by the fact that it has a value for the ratio ?1/?n2 in the range 6-45 with a clearing point of >60° C. and a ?? of ??2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 3, 2015
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • Patent number: 8945420
    Abstract: The invention relates to an electro-optical liquid-crystal display which contains, as dielectric, a liquid-crystalline medium having negative dielectric anisotropy and includes a backlight which essentially only emits light having a wavelength of 400 nm or more or has, between the liquid-crystal layer and the backlight, a cut-off filter which essentially only allows light having a wavelength of 420 nm or more to pass through. In particular, the liquid-crystalline medium comprises a) a (first) dielectrically negative component (component A) which consists of one or more dielectrically negative compounds of the formula I in which the parameters have the meanings indicated in claim 2, and a further (second) dielectrically negative component (component B).
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: February 3, 2015
    Assignee: Merck Patent GmbH
    Inventors: Atsutaka Manabe, Kazuaki Tarumi, Hubert Spreitzer, Axel Jansen, Melanie Klasen-Memmer
  • Patent number: 8877092
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, ring A have the meanings indicated in claim 1, 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: February 10, 2011
    Date of Patent: November 4, 2014
    Assignee: MERCK PATENT GmbH
    Inventors: Melanie Klasen-Memmer, Volker Reiffenrath, Konstantin Schneider, Andreas Waechtler, Elvira Montenegro
  • Publication number: 20140028964
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, rings A and B, Z1, L1, L2, a and b have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect.
    Type: Application
    Filed: March 8, 2012
    Publication date: January 30, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Melanie Klasen-Memmer, Achim Goetz, Georg Bernatz
  • Publication number: 20140022473
    Abstract: Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I
    Type: Application
    Filed: July 3, 2013
    Publication date: January 23, 2014
    Applicant: MERCK PATENT GmbH
    Inventors: Achim GOETZ, Melanie KLASEN-MEMMER, Stephan DEROW, Sabine SCHOEN, Peter BEST
  • Publication number: 20140008571
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, L1, L2 and L3 have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PA-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect. The invention furthermore also relates to compounds of the formula I.
    Type: Application
    Filed: February 27, 2012
    Publication date: January 9, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Harald Lannert, Konstantin Schneider
  • Publication number: 20130306910
    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: July 26, 2013
    Publication date: November 21, 2013
    Applicant: Merck Patent GmbH
    Inventors: Achim GOETZ, Melanie KLASEN-MEMMER, Stephan DEROW
  • Patent number: 8545720
    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: Grant
    Filed: November 26, 2009
    Date of Patent: October 1, 2013
    Assignee: MERCK PATENT GmbH
    Inventors: Achim Goetz, Melanie Klasen-Memmer, Stephan Derow
  • Patent number: 8475889
    Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALO, FFS or IPS effect.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: July 2, 2013
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Matthias Bremer
  • Patent number: 8399073
    Abstract: The invention relates to a liquid-crystalline medium having negative dielectric anisotropy which comprises at least one compound of the formula I in which R1, R1* and a have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PS-VA, PALC, FFS or IPS effect.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: March 19, 2013
    Assignee: Merck Patent Gesellschaft mit Beschränkter Haftung
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Konstantin Schneider, Detlef Pauluth
  • Patent number: 8361568
    Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: January 29, 2013
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Matthias Bremer
  • Publication number: 20120326084
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, ring A have the meanings indicated in Claim 1, 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: Application
    Filed: February 10, 2011
    Publication date: December 27, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Melanie Klasen-Memmer, Volker Reiffenrath, Konstantin Schneider, Andreas Waechtler, Elvira Montenegro
  • Publication number: 20120305843
    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: Application
    Filed: January 31, 2011
    Publication date: December 6, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Melanie Klasen-memmer, Matthias Bremer, Konstantin Schneider
  • Publication number: 20120307177
    Abstract: The invention relates to an electro-optical liquid-crystal display which contains, as dielectric, a liquid-crystalline medium having negative dielectric anisotropy and includes a backlight which essentially only emits light having a wavelength of 400 nm or more or has, between the liquid-crystal layer and the backlight, a cut-off filter which essentially only allows light having a wavelength of 420 nm or more to pass through. In particular, the liquid-crystalline medium comprises a) a (first) dielectrically negative component (component A) which consists of one or more dielectrically negative compounds of the formula I in which the parameters have the meanings indicated in claim 2, and a further (second) dielectrically negative component (component B).
    Type: Application
    Filed: January 17, 2011
    Publication date: December 6, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Atsutaka Manabe, Kazuaki Tarumi, Hubert Spreitzer, Axel Jansen, Melanie Klasen-Memmer