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Touch sensor with linearized response

  • US 20050146509A1
  • Filed: 12/30/2003
  • Published: 07/07/2005
  • Est. Priority Date: 12/30/2003
  • Status: Active Grant
First Claim
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1. A touch sensor comprising:

  • a resistive film covering a touch sensitive area;

    at least two polygonal parallel rows of discrete conductive segments disposed on the resistive film and surrounding the touch sensitive area, each edge of each row comprising one or more middle conductive segments disposed between two end conductive segments, end conductive segments at each polygon vertex in the outermost row being disjoined in the outermost row, end conductive segments at each polygon vertex in at least one inner row being joined in the inner row; and

    electrically conductive interconnect lines connected to each of the end conductive segments in the outermost row for communicating signals to and from the resistive film for detecting an input touch applied to the touch sensitive area.

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