Patent ID: 9064755
Filing Date: 2015-06-23
Classification: H01L

Abstract:
1. An organic light-emitting display device, comprising: a thin film transistor comprising an active layer, a gate electrode that is insulated from the active layer and comprises a lower gate electrode and an upper gate electrode, an insulating layer covering the gate electrode, source and drain electrodes that are formed on the insulating layer and contact the active layer; an organic light-emitting diode that is electrically connected to the thin film transistor and comprises a pixel electrode formed at the same layer level as the lower gate electrode, an intermediate layer comprising an emission layer, and a counter electrode, the pixel electrode, the intermediate layer, and the counter electrode are sequentially stacked; a pad electrode comprising a lower pad electrode formed at the same layer level as the lower gate electrode and an upper pad electrode formed at the same layer level as the upper gate electrode, the insulating layer covering a top surface of the upper pad electrode, and the upper pad electrode comprising an opening formed in the insulating layer and the upper pad electrode to expose a portion of the lower pad electrode; and a plurality of conductive balls filling the opening in the insulating layer and the opening in the upper pad electrode.