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PROJECTED CAPACITANCE TOUCH PANEL WITH REFERENCE AND GUARD ELECTRODE

  • US 20130257786A1
  • Filed: 03/30/2012
  • Published: 10/03/2013
  • Est. Priority Date: 03/30/2012
  • Status: Active Grant
First Claim
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1. A mutual capacitance touch panel device, comprising:

  • a substrate;

    an array of electrode elements formed on the substrate, each electrode element including a drive electrode, a sense electrode and a reference electrode, the reference electrode arranged between the drive electrode and the sense electrode; and

    a first mutual coupling capacitance formed between the drive electrode and the reference electrode of each electrode element, wherein the drive electrode and reference electrode are configured such that the first mutual coupling capacitance is substantially insensitive to an object touching the surface of the touch panel.

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