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Touch sensitive screen configurations

  • US 8,723,834 B2
  • Filed: 07/28/2010
  • Issued: 05/13/2014
  • Est. Priority Date: 07/28/2010
  • Status: Active Grant
First Claim
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1. A touch sensitive screen comprising:

  • at least one insulator;

    first and second pluralities of electrodes separated by the at least one insulator, the plurality of first electrodes bring arranged in a first direction, and the plurality of second electrodes being arranged in a second direction different from the first direction such that the first and second electrodes cross over each other to form touch sensing nodes;

    a controller configured to supply signals to and receive signals from electrodes;

    a first plurality of channels connecting the first electrodes to the controller;

    a second plurality of channels connecting the second electrodes to the controller, wherein;

    each of the second electrodes comprises a first section and a second section, the first section being collinear with, and electrically insulated from, the second section,wherein the first section of each second electrode is connected to a first one of the plurality of the second channels and the second section of each second electrode is connected to a second one of the plurality of second channels that is different from the first one of the plurality of second channels,wherein the controller is further configured to compensate for the first section of each second electrode being connected to a different one of the plurality of second channels than the second section of each second electrode when determining a position of a touch at the touch sensitive screen by reordering signals from the second electrodes by associating each second one of the plurality of second channels with a respective first one of the plurality of second channels, each associated first one and second one of the plurality of the second channels connected to a respective first section and second section having the same distance from an edge of the touch sensitive area.

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