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Gate drive circuit having reduced size, display substrate having the same, and method of manufacturing the display substrate

  • US 9,257,455 B2
  • Filed: 11/03/2011
  • Issued: 02/09/2016
  • Est. Priority Date: 12/27/2010
  • Status: Active Grant
First Claim
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1. A gate drive circuit in which plural stages are connected together one after each other, the plural stages configured to output a plurality of gate signals,each of the plural stages comprising:

  • a circuit transistor configured to output the gate signal to an output terminal of the respective stage in response to a control signal applied through a gate electrode;

    a capacitor part formed adjacent to the circuit transistor and having two capacitors connected to the gate electrode of the circuit transistor and to the output terminal, the capacitor part comprising a first electrode, a second electrode formed on the first electrode, and a third electrode formed on the second electrode, the first, second and third electrode of the capacitor part being different from the gate electrode and a source electrode of the circuit transistor;

    a first connection part directly connecting the gate electrode of the circuit transistor and the second electrode of the capacitor part; and

    a second connection part directly connecting an output electrode of the circuit transistor and the first electrode of the capacitor part;

    wherein the third electrode is formed from a same layer as that of a pixel electrode.

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