Patents by Inventor Siebe Jelsma

Siebe Jelsma 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).

  • Display device
    Patent number: 5648794
    Abstract: To prevent burn-in of images, notably with pixels (14) driven via non-linear two-pole switching elements (8), a display device is controlled in such a way that the charge transport through the two-pole element is substantially independent of the grey level. Capacitance variations due to pixel voltage variations are compensated by adapting the voltage change across the pixel (14) via extra reset signals and/or compensation signals.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: July 15, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Siebe Jelsma, Karel E. Kuijk