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).

  • LIQUID CRYSTAL MEDIUM CONTAINING POLYMERISABLE COMPOUNDS
    Publication number: 20180187080
    Abstract: The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.
    Type: Application
    Filed: June 2, 2016
    Publication date: July 5, 2018
    Applicant: Merck Patent GmbH
    Inventors: Dong-Mee SONG, Ki-Sun KWON, Hoo-Yong LEE, Melanie KLASEN-MEMMER, Christian SCHOENEFELD, Konstantin SCHNEIDER, Matthias KOCH, Joerg PESCHKE, Matthias BREMER, Nils GREINERT
  • LIQUID CRYSTAL MEDIUM CONTAINING POLYMERISABLE COMPOUNDS
    Publication number: 20180179446
    Abstract: The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.
    Type: Application
    Filed: June 3, 2016
    Publication date: June 28, 2018
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Nils GREINERT, Matthias BREMER, Andreas TAUGERBECK, Christian SCHOENEFELD, Patrick SUESS
  • Liquid-crystalline media
    Patent number: 9982194
    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: Grant
    Filed: March 31, 2015
    Date of Patent: May 29, 2018
    Assignee: Mereck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Marcus Reuter, Rocco Fortte, Detlef Pauluth, Matthias Bremer, Helmut Haensel, Harald Hirschmann
  • LIQUID-CRYSTALLINE MEDIUM
    Publication number: 20180119010
    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: December 29, 2017
    Publication date: May 3, 2018
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Achim GOETZ, Georg BERNATZ
  • LIQUID CRYSTALLINE MEDIUM
    Publication number: 20170369781
    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: Application
    Filed: August 15, 2017
    Publication date: December 28, 2017
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Sabine SCHOEN
  • 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: 20170267928
    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: Application
    Filed: May 30, 2017
    Publication date: September 21, 2017
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Sabine SCHOEN
  • Liquid-crystalline medium
    Patent number: 9714381
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I, and at least one additional compound, and to the use of the LC mixtures for an active- or passive matrix addressed displays, in particular based on the VA, PSA, PS-VA, IPS, FFS, PS-IPS, PS-FFS technology, preferably in optical displays for the self-aligning VA mode.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: July 25, 2017
    Assignee: Merck Patent GmbH
    Inventors: Graziano Archetti, Melanie Klasen-Memmer, Rocco Fortte, Sabine Schoen
  • Liquid crystalline medium
    Patent number: 9701903
    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: May 7, 2015
    Date of Patent: July 11, 2017
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • LIQUID CRYSTAL MEDIUM AND ELECTROOPTICAL DISPLAY CONTAINING SAME
    Publication number: 20170088776
    Abstract: The present invention relates to nematic liquid-crystal media of negative dielectric anisotropy which have a peak time (tmax.) of 0.25 ms or less, which is determined as described in the disclosure, and which preferably have a value of the quotient of the peak time and the square of the birefringence (tmax/?n2) of 22 ms or less, and to the use of these liquid-crystal media in liquid-crystal displays, and to these liquid-crystal displays.
    Type: Application
    Filed: December 12, 2016
    Publication date: March 30, 2017
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Izumi SAITO, Herbert PLACH, Kazuaki TARUMI
  • LIQUID CRYSTALLINE MEDIUM
    Publication number: 20170073580
    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: Application
    Filed: November 8, 2016
    Publication date: March 16, 2017
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Sabine SCHOEN
  • LIQUID CRYSTALLINE MEDIUM
    Publication number: 20170051204
    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: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Sabine SCHOEN
  • Liquid crystal medium and electrooptical display containing same
    Patent number: 9550942
    Abstract: The present invention relates to nematic liquid-crystal media of negative dielectric anisotropy which have a peak time (tmax.) of 0.25 ms or less, which is determined as described in the disclosure, and which preferably have a value of the quotient of the peak time and the square of the birefringence (tmax/?n2) of 22 ms or less, and to the use of these liquid-crystal media in liquid-crystal displays, and to these liquid-crystal displays.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: January 24, 2017
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Izumi Saito, Herbert Plach, Kazuaki Tarumi
  • Liquid crystal medium
    Patent number: 9428694
    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: Grant
    Filed: May 21, 2013
    Date of Patent: August 30, 2016
    Assignee: Merck Patent GmbH
    Inventors: Martin Engel, Melanie Klasen-Memmer, Christoph Marten, Stephan Derow
  • Liquid-crystalline medium
    Patent number: 9347002
    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: Grant
    Filed: February 27, 2012
    Date of Patent: May 24, 2016
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Matthias Bremer, Harald Lannert, Konstantin Schneider
  • Liquid crystalline medium
    Patent number: 9340730
    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: May 17, 2016
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • Liquid crystalline medium
    Patent number: 9267078
    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 15, 2012
    Date of Patent: February 23, 2016
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • LIQUID-CRYSTALLINE MEDIUM
    Publication number: 20160046863
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I, and at least one additional compound, and to the use of the LC mixtures for an active- or passive matrix addressed displays, in particular based on the VA, PSA, PS-VA, IPS, FFS, PS-IPS, PS-FFS technology, preferably in optical displays for the self-aligning VA mode.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 18, 2016
    Applicant: Merck Patent GmbH
    Inventors: Graziano ARCHETTI, Melanie KLASEN-MEMMER, Rocco FORTTE, Sabine SCHOEN
  • LIQUID CRYSTALLINE MEDIUM
    Publication number: 20160046862
    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: Application
    Filed: October 23, 2015
    Publication date: February 18, 2016
    Applicant: MERCK PATENT GMBH
    Inventors: Melanie KLASEN-MEMMER, Sabine SCHOEN
  • LIQUID CRYSTALLINE MEDIUM
    Publication number: 20150240157
    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: Application
    Filed: May 7, 2015
    Publication date: August 27, 2015
    Applicant: Merck Patent GmbH
    Inventors: Melanie KLASEN-MEMMER, Sabine SCHOEN