Patents by Inventor Thomas J. Fitzgibbons

Thomas J. Fitzgibbons 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).

  • Method of improving viewing angle and contrast of liquid crystal displays
    Patent number: 5969700
    Abstract: A novel method of driving an LCD simultaneously provides improved viewing angle and improved contrast. Multiple driving voltages are applied to the LC cell to optimize both the viewing angle and the contrast. A first voltage that is optimized for wide viewing angle is applied to the LCD. A second voltage that is greater than the first voltage is selected to provide maximum contrast in the LCD. The first and second voltages are alternately applied to In the LCD, resulting in a display that has high contrast and a wide viewing angle.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: October 19, 1999
    Assignee: Motorola, Inc.
    Inventors: Thomas J. Fitzgibbons, Patrick M. Dunn