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Display apparatus having touch screen function

  • US 8,508,488 B2
  • Filed: 12/08/2008
  • Issued: 08/13/2013
  • Est. Priority Date: 06/12/2008
  • Status: Expired due to Fees
First Claim
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1. A display device comprising:

  • a plasma display panel comprisinga substrate comprising a first region, and a second region at least partly surrounding the first region, the first region being a display region and the second region being a non-display region; and

    a plurality of barrier ribs located on the substrate, whereina plurality of display cells for displaying an image is defined by the barrier ribs on the first region of the substrate, anda plurality of light generation cells for generating light, different from the image, to be detected for touch position sensing, is defined by the barrier ribs on the second region of the substrate; and

    a pair of cameras located at or near a periphery of the plasma display panel, aligned with respective crossing directions across the plasma display panel, and oriented to detect the light generated by the light generation cells to determine a touch position of an object on the plasma display panel, wherein the light is infrared.

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