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LIQUID CRYSTAL DISPLAY

  • US 20120206412A1
  • Filed: 04/20/2012
  • Published: 08/16/2012
  • Est. Priority Date: 06/24/2008
  • Status: Active Grant
First Claim
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1. A liquid crystal display comprising:

  • a liquid crystal display panel including a pixel array that displays an image and touch sensors that sense a touch position depending on an amount of receiving light;

    a polarizing plate on one substrate of the liquid crystal display panel transmitting display light, the polarizing plate including a conductive layer;

    a driving voltage supply circuit to generate a driving voltage required to perform light sensing operations of the touch sensors during a touch period based on changes in an amount of surface charge of the conductive layer depending on whether or not the polarizing plate is touched; and

    a signal transmitting unit to electrically connect the conductive layer to the driving voltage supply circuit.

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