Patents Examined by Kevin Yafuso
  • Patent number: 9318068
    Abstract: Systems and methods for efficiently generating display driver timing signals are provided. In one example, display driver circuitry of an electronic display may provide a negative voltage from a negative voltage supply to display control circuitry during a first period and may provide a positive voltage from a positive voltage supply to the display control circuitry during a second period. After providing the negative voltage during the first period but before providing the positive voltage during the second period, the display driver circuitry may precharge the capacitance of the display control circuitry to ground. In this way, the positive voltage supply substantially does not supply charge to raise the voltage on the capacitance of the display control circuitry from the negative voltage to ground.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: April 19, 2016
    Assignee: APPLE INC.
    Inventors: David A. Stronks, Hopil Bae, Kingsuk Brahma, Sang Y. Youn