Patents by Inventor Maria C. Wuijts

Maria C. Wuijts 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).

  • Electroluminescent display screen for displaying fixed and segmented patterns, and method of manufacturing such an electroluminescent display screen
    Patent number: 6280909
    Abstract: Electroluminescent display screen having a transparent substrate (1), a surface (2) of which is provided with a first, transparent electrode layer (3) on which a metal top layer (12) is formed. The metal top layer is provided with a layer of insulating material (4). Windows (5) in accordance with a pattern (8, 9, 10) to be displayed are formed in the layer of insulating material as well as in the metal top layer. An organic electroluminescent layer (6) is deposited on said layer of insulating material and in said windows. This layer is provided with a second electrode layer (7). Said pattern (8, 9, 10) can be displayed without differences in brightness.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: August 28, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Richard E. Gill, Coen T. H. F. Liedenbaum, Maria C. Wuijts