Knobbe Martens Olson & Bear, LLP
Organic light emitting diode display device and method of manufacturing the same
An organic light emitting diode display device and a method of manufacturing the same are disclosed. The organic light emitting diode display device comprises: a substrate; an active layer disposed on the substrate; a first insulating layer disposed on the active layer; a gate electrode disposed on the first insulating layer; a pixel electrode disposed on the first insulating layer; source and drain electrodes electrically insulated from the gate electrode and electrically connected to the active layer; an intermediate layer disposed on the pixel electrode, wherein the intermediate layer comprises an organic emission layer; and an opposite electrode disposed on the intermediate layer, wherein the pixel electrode is connected to the source electrode or the drain electrode, wherein the gate electrode comprises a first conductive layer, a second conductive layer, a third conductive layer, and a fourth conductive layer that are sequentially stacked, and wherein the second and third conductive layers comprises a first oxidation-reduction potential difference therebetween, and the first and third conductive layers comprises a second oxidation-reduction potential difference therebetween, and the first oxidation-reduction potential difference is less than the second oxidation-reduction potential difference.
Samsung Display Co., Ltd.
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Yul-Kyu Chun-Gi Sun
Lee You Park