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MULTI-TOUCH TOUCH SCREEN WITH SINGLE-LAYER ITO BARS ARRANGED IN PARALLEL

  • US 20090267914A1
  • Filed: 04/21/2009
  • Published: 10/29/2009
  • Est. Priority Date: 04/24/2008
  • Status: Active Grant
First Claim
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1. A touch screen, comprising:

  • a plurality of conductive bars arranged in parallel to each other, each of the conductive bars including a single conductive layer with a substantially rectangular shape; and

    a touch screen controller coupled to the conductive bars, the controller configured to apply a first excitation signal to a first end of one of the conductive bars and measure a first response signal corresponding to the first excitation signal at a second end of said one of the conductive bars, the touch screen controller configured to determine a position of a touch on said one of the conductive bars in a first direction along said one of the conductive bars based on a first difference between the first response signal and the first excitation signal.

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