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SIGNAL MEASURING METHOD AND DEVICE FOR TOUCH SCREEN

  • US 20130321330A1
  • Filed: 05/17/2013
  • Published: 12/05/2013
  • Est. Priority Date: 05/18/2012
  • Status: Active Grant
First Claim
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1. A signal measuring method for a touch screen comprising:

  • providing a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of sensing electrodes arranged in parallel, the driving electrodes and the sensing electrodes intersecting one another at a plurality of intersections;

    determining a delay phase difference for each one or each set of driving electrodes;

    sequentially providing a driving signal to each one or each set of the driving electrodes, the driving electrodes provided with the driving signal being mutual capacitively coupled with the sensing electrodes; and

    each time the driving signal being provided, measuring a signal of at least one of the sensing electrodes being provided with the driving signal after delaying it by the delay phase difference corresponding to the one or the set of driving electrodes being provided with the driving signal.

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