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POSITION SENSING DISPLAY

  • US 20090167713A1
  • Filed: 12/19/2008
  • Published: 07/02/2009
  • Est. Priority Date: 12/27/2007
  • Status: Abandoned Application
First Claim
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1. A method of sensing the position of a sensed object in front of a display, the display having a front position sensitive panel having a plurality of fine x-sense electrodes combined in interdigitated groups extending across the panel and a plurality of fine y-sense electrodes combined in interdigitated groups extending across the panel across the fine x-sense electrodes, the method comprising:

  • carrying out a fine position sensing operation using the fine x and y sense electrodes, wherein the fine position sensing operation determines the position of the sensed object to be a plurality of positions at a fine resolution;

    carrying out a coarse position sensing operation to determine the position of the sensed object to be a unique location at a coarser resolution than the fine position sensing operation; and

    combining the results of the coarse and fine position sensing operation to identify the position of the sensed object uniquely at the fine resolution.

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