Patent ID: 8497514

Claim:
An organic light emitting device, comprising: a thin film transistor including a gate electrode, a source electrode and a drain electrode over a substrate; an organic light emitting diode including a first electrode, a second electrode, and an organic light emitting layer formed between the first electrode and the second electrode, the organic light emitting diode being electrically connected to the drain electrode of the thin film transistor; a power line including a first conductive layer on an insulating layer, and a second conductive layer including a middle portion, a lateral portion, and an end portion, wherein the middle portion of the second conductive layer is positioned directly on the first conductive layer, the end portion of the second conductive layer is positioned directly on a top surface of a protective layer, and the lateral portion of the second conductive layer extends laterally between the middle portion of the second conductive layer and the end portion of the second conductive layer, wherein the source and drain electrodes of the thin film transistor are covered with the protective layer, wherein the second conductive layer and the first electrode are formed using the same material, and wherein the protective layer is positioned on the first conductive layer.