Organic light emitting display device and manufacturing method for the same

摘要

An organic light emitting display device includes a substrate, a thin film transistor formed on the substrate and including an active layer, a gate electrode including a gate lower electrode and a gate upper electrode, a source electrode, and a drain electrode, an organic light emitting device electrically connected to the thin film transistor, wherein a pixel electrode formed of the same material as at least a part of the gate electrode in the same layer, an intermediate layer including a light emitting layer, and an opposed electrode arranged to face the pixel electrode are sequentially deposited.

主权项

1. A method of manufacturing an organic light emitting display device, the method comprising:
forming an active layer on a substrate via a first mask process operation, the substrate having a light emitting area and a non-light emitting area that is disposed outside the light emitting area to surround the light emitting area, the active layer being formed in the light emitting area of the substrate; forming a gate electrode and a first pad electrode via a second mask process operation, and an electrode pattern that forms a pixel electrode, above the active layer, the gate electrode and the electrode pattern being formed in the light emitting area of the substrate, the first pad electrode being formed in the non-light emitting area of the substrate; forming an interlayer insulation layer having an opening that exposes both sides of the active layer, via a third mask process operation, a part of the first pad electrode, and a part of the electrode pattern; forming source and drain electrodes contacting both exposed sides of the active layer via a fourth mask process operation, a second pad electrode contacting an exposed part of the first pad electrode, and the pixel electrode, the second pad electrode electrically connected to the first pad electrode, the source and drain electrodes being formed in the light emitting area of the substrate, the second pad electrode being formed in the non-light emitting area of the substrate; forming a pixel define layer that exposes at least a part of the pixel electrode and at least a part of the second pad electrode via a fifth mask process operation; and doping predetermined ions in at least a part of the exposed second pad electrode.