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Thin film transistor array substrate, organic light emitting display device comprising the same, and method of manufacturing the thin film transistor array substrate

  • US 9,153,605 B2
  • Filed: 06/28/2012
  • Issued: 10/06/2015
  • Est. Priority Date: 11/30/2011
  • Status: Active Grant
First Claim
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1. A thin film transistor array substrate, comprising:

  • a capacitor comprising a first electrode and a second electrode;

    a thin film transistor comprisingan active layer, a gate electrode, and source and drain electrodes,a first insulation layer arranged between the active layer and the gate electrode, anda second insulation layer arranged between the gate electrode and the source and drain electrodes;

    a pixel electrode arranged on the first insulation layer and comprising a same material as the gate electrode;

    a pad electrode arranged on the second insulation layer and comprising a same material as the source and drain electrodes;

    a protection layer formed on the pad electrode, the protection layer and the pad electrode are formed from different layers; and

    a third insulation layer formed on a portion of the protection layer and exposing another portion of the protection layer and the pixel electrode;

    the first electrode of the capacitor and the active layer of the thin film transistor are formed from same layer,the second electrode of the capacitor and the gate electrode of the thin film transistor are formed from same layer,the pad electrode being spaced apart from and not overlapping the pixel electrode, the electrodes of the capacitor and the thin film transistor.

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