Patents by Inventor James D. Cleland

James D. Cleland 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).

  • Gamma correction of the viewing angle of liquid crystal display
    Patent number: 6297790
    Abstract: The present invention is directed to a method and apparatus for adjusting the viewing angle of a liquid crystal display. In a preferred embodiment of the present invention, a plurality of digital-to-analog converters are arranged in pairs which have a fixed relationship. By determining appropriate values for the digital-to-analog converters, a desired viewing angle may be obtained for a liquid crystal display.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: October 2, 2001
    Assignees: Universal Avionics Systems Corporation, Instrument Division and L-3 Communications Corporation
    Inventors: Joseph W. Goode, III, James D. Cleland, James M. Brannen