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CONCURRENT INPUT SENSING AND DISPLAY UPDATING

  • US 20140078097A1
  • Filed: 12/20/2012
  • Published: 03/20/2014
  • Est. Priority Date: 09/20/2012
  • Status: Active Grant
First Claim
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1. A processing system for a display device integrated with a capacitive sensing device, the processing system comprising:

  • a driver module comprising driver circuitry, the driver module coupled to a sub-pixel with a first source line and a first common electrode, wherein the driver module is configured to simultaneously;

    update the sub-pixel by driving the first source line with a first voltage; and

    drive the first common electrode for capacitive sensing by modulating the first common electrode between a second voltage and a third voltage;

    a receiver module coupled to a plurality of receiver electrodes configured to receive resulting signals from the receiver electrodes while the first common electrode is modulated between the second voltage and the third voltage; and

    a determination module configured to determine positional information based on the resulting signals.

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