Organic light emitting diode display device including driving transistor having overlapping layer between semiconductor layer and substrate

An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a fi...

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Bibliographische Detailangaben
Hauptverfasser: Yang, Yong Ho, Hwang, Young-In, Kim, Sung Ho, Wang, Seong Min
Format: Patent
Sprache:eng
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Zusammenfassung:An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.