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LIQUID CRYSTAL DISPLAY DEVICE WITH TOUCH PANEL

  • US 20150091865A1
  • Filed: 10/01/2014
  • Published: 04/02/2015
  • Est. Priority Date: 10/02/2013
  • Status: Active Grant
First Claim
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1. A liquid crystal display device with a touch panel comprising:

  • pixel electrodes that are a plurality of electrodes which are disposed in each pixel disposed in a display region and to which a potential is applied depending on a gradation value;

    common electrodes that are a plurality of electrodes which extend in one direction across the display region;

    detection electrodes that are a plurality of electrodes which extend in a direction different from the one direction across the display region, form an electric capacitance with driving electrodes that are a part of the common electrodes, and detect a contact position on a panel;

    a liquid crystal layer that is formed by a liquid crystal composition in which an orientation is changed by an electric field formed by the pixel electrodes and the common electrodes; and

    a driving pulse output section that applies a driving pulse once to the driving electrodes for detecting contact within two successive horizontal synchronizing periods that are periods of display.

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