Patents by Inventor Grit Pirwitz

Grit Pirwitz 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).

  • Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof
    Patent number: 5998563
    Abstract: Photosensitive orientation material providing unidirectional LC alignment to generate a high pretilt angle for various LC compounds, and superior thermal stability, and being suitable for mass production, especially for active matrix LC displays, including polysiloxane, and a derivative of a cinnamoyl group.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: December 7, 1999
    Assignee: LG Electronics Inc.
    Inventors: Grit Pirwitz, Horst Zaschke, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus
  • Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof
    Patent number: 5824377
    Abstract: Photosensitive orientation material providing unidirectional LC alignment to generate a high pretilt angle for various LC compounds, and superior thermal stability, and being suitable for mass production, especially for active matrix LC displays, including polysiloxane, and a derivative of a cinnamoyl group.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: October 20, 1998
    Assignee: LG Electronics Inc.
    Inventors: Grit Pirwitz, Horst Zaschke, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus