Patents by Inventor Christianne M. R. De Witz

Christianne M. R. De Witz 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: 6320633
    Abstract: Display device in which light is generated in patterned areas of electroluminescent material (via UV radiation, LED-driving or optical pumping), which light leaves the areas by waveguiding along edges of said area, where it is directed to the viewer by light-scattering or reflecting elements.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: November 20, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Dirk J. Broer, Christianne M. R. De Witz