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LIQUID CRYSTAL DEVICE, METHOD OF DRIVING LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS

  • US 20080218650A1
  • Filed: 02/21/2008
  • Published: 09/11/2008
  • Est. Priority Date: 03/06/2007
  • Status: Abandoned Application
First Claim
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1. A liquid crystal device comprising:

  • a first substrate;

    a second substrate that is opposed to the first substrate;

    liquid crystal that is sealed in a gap between the first substrate and the second substrate;

    a detection electrode that is provided on a side of the first substrate, opposite to a side on which the liquid crystal is provided, wherein the detection electrode detects a contact on the basis of variation in capacitance;

    a liquid crystal capacitor that includes a pixel electrode, an opposite electrode, and the liquid crystal between the pixel electrode and the opposite electrode;

    a storage capacitor that includes a first electrode and a second electrode that is connected to the pixel electrode;

    a switching element that is connected between the pixel electrode and a signal line;

    a selection circuit that conducts the switching element during a selection period and interrupts conduction of the switching element after the selection period has elapsed;

    a signal supplying circuit that supplies a data electric potential corresponding to positive polarity writing or negative polarity writing to the signal line during the selection period; and

    an electric potential control circuit that shifts an electric potential of the first electrode to a high level side after a selection period in which a data electric potential corresponding to the positive polarity writing is supplied to the signal line has elapsed, and that shifts an electric potential of the first electrode to a low level side after a selection period in which a data electric potential corresponding to the negative polarity writing is supplied to the signal line has elapsed.

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