US Patent 7759863 Organic electroluminescent display device and fabricating method thereof

An electroluminescent display device includes a shielding pattern on a substrate; a thin film transistor including a semiconductor layer that is disposed on the shielding pattern and that has an active portion and source and drain ohmic contact portions; an organic electroluminescent diode connected to the thin film transistor; and a power line connected to the thin film transistor, wherein the shielding pattern partially covers the active portion of the semiconductor layer.