Patents by Inventor Jonathon D. Carr

Jonathon D. Carr 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).

  • Liquid crystal display and turn-off method therefor
    Patent number: 5805121
    Abstract: In a liquid crystal display (16) having rows and columns of pixels (22), one or more selected rows of pixels are turned off (put in a standby mode) in a manner that saves power. A row of pixels is turned off by applying to the row a cyclical two-level voltage (BP2) having a magnitude that, when combined with voltages (FP3) applied to columns, results in each pixel in the selected row receiving a combined voltage (BP2-FP3) having a reduced number of transitions (30), having a magnitude that is insufficient to turn on a pixel, and having an average value of substantially zero over a cycle. The method is incorporated in a liquid crystal display apparatus (32) having a mode control (54) for switching selected rows of pixels between an active mode and a standby mode.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: September 8, 1998
    Assignee: Motorola, Inc.
    Inventors: John M. Burgan, Jonathon D. Carr, Carlos A. Sanchez