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Low latency modification of display frames

  • US 9,721,365 B2
  • Filed: 03/31/2015
  • Issued: 08/01/2017
  • Est. Priority Date: 12/09/2014
  • Status: Active Grant
First Claim
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1. A processing system for displaying modified display frame data on a display, the processing system comprising:

  • a touch controller configured to detect an input object in a sensing region and, in response, transmit touch data to a host processor and to an overlay engine, wherein the overlay engine is configured to;

    receive a first display frame and modify the first display frame with temporary image data based on the received touch data;

    assign respective timers to different pixels of the temporary image data, wherein the respective timers are activated at different times; and

    remove the different pixels from the temporary image data when the respective timers satisfy a predefined time window; and

    a display driver configured to prepare the modified first display frame for output to the display.

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