Thin film transistor array substrate and organic light-emitting diode display including the same

  • US 9,768,240 B2
  • Filed: 05/14/2015
  • Issued: 09/19/2017
  • Est. Priority Date: 10/06/2014
  • Status: Active Grant
First Claim
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1. A thin film transistor (TFT) array substrate comprising:

  • a substrate;

    a driving TFT formed over the substrate and comprising a driving gate electrode, source and drain electrodes, and a driving semiconductor layer;

    a gate insulating film formed over the substrate to cover the driving semiconductor layer and insulate the driving semiconductor layer from the driving gate electrode;

    a storage capacitor comprising a first electrode electrically connected to the driving gate electrode and a second electrode formed over the driving TFT and formed over and insulated from the first electrode, wherein the source and drain electrodes of the driving TFT and the second electrode of the storage capacitor are separate electrodes;

    an interlayer insulating film formed over the driving TFT and at least partially covering the first electrode and insulating the first electrode from the second electrode; and

    a driving voltage line formed over the interlayer insulating film and configured to supply a voltage to the driving TFT,wherein the driving voltage line is formed on a same layer as the second electrode.

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