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LIQUID CRYSTAL DISPLAY DEVICE

  • US 20090256816A1
  • Filed: 10/30/2008
  • Published: 10/15/2009
  • Est. Priority Date: 04/10/2008
  • Status: Active Grant
First Claim
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1. A liquid crystal display device comprising:

  • a first substrate and a second substrate being opposite to each other;

    a plurality of gate lines and a plurality of data lines crossing each other on the first substrate to define pixel regions;

    pixel transistors respectively disposed at the intersections of the plurality of gate lines and the plurality of data lines, and pixel electrodes respectively disposed in the pixel regions;

    a common electrode disposed on the entire surface of the second substrate;

    a liquid crystal layer filling a gap between the first and second substrates;

    liquid crystal capacitors between the pixel electrodes and the common electrode;

    first storage capacitors disposed between the pixel electrodes and first storage electrodes on the first substrate;

    second storage capacitors and sensing capacitors disposed in series between the gate lines and the common electrode;

    a read out line being parallel with the data lines; and

    switching transistors, each of which is provided with a gate electrode connected to a node between the second storage capacitor and the sensing capacitor, a drain electrode connected to the read out line, and a source electrode connected to a power voltage line.

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