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TOUCH PANEL AND DRIVING METHOD OF THE SAME

  • US 20100328269A1
  • Filed: 06/15/2010
  • Published: 12/30/2010
  • Est. Priority Date: 06/25/2009
  • Status: Active Grant
First Claim
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1. A touch panel comprising:

  • a plurality of pixels each comprising a display element and a photo sensor; and

    an A/D converter configured to be supplied with a first potential from the photo sensor, the A/D converter comprising an oscillation circuit and a counter circuit,wherein the oscillation circuit is configured to generate a first signal having an oscillation frequency determined in accordance with the first potential, andwherein the counter circuit is configured to generate a second signal having a discrete value determined in accordance with the oscillation frequency.

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