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LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS

  • US 20090015533A1
  • Filed: 06/25/2008
  • Published: 01/15/2009
  • Est. Priority Date: 06/29/2007
  • Status: Active Grant
First Claim
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1. A liquid crystal device comprising:

  • a plurality of scanning lines;

    a plurality of data lines that intersect with the scanning lines;

    a plurality of pixel electrodes that are provided at positions corresponding to intersections of the plurality of scanning lines and the plurality of data lines;

    a capacitor electrode that is provided opposite each of the pixel electrodes and that forms a capacitor with each of the pixel electrodes or with an electrode layer connected to each of the pixel electrodes;

    a control circuit that alternately supplies the capacitor electrode with a first voltage or a second voltage that is higher in electric potential than the first voltage;

    a scanning line driving circuit that sequentially supplies the plurality of scanning lines with a scanning line selection voltage that selects the scanning line; and

    a data line driving circuit that, when the scanning line is selected, alternately supplies the plurality of data lines with a positive polarity image signal that is higher in electric potential than the first voltage or a negative polarity image signal that is lower in electric potential than the second voltage, whereinthe control circuit includes a selection circuit and a selection signal output circuit, whereinthe selection circuit alternately selects and outputs the first voltage or the second voltage to the capacitor electrode, whereinthe selection signal output circuit outputs a selection signal to the selection circuit, and whereinthe first voltage is higher in electric potential than a low electric potential of the selection signal, and the second voltage is lower in electric potential than a high electric potential of the selection signal.

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