Patent ID: 7851800

Claim:
An OLED device, adapted to be disposed on a substrate, comprising: a driving circuit, including a switch thin film transistor and a driving thin film transistor, wherein the switch thin film transistor and the driving thin film transistor respectively comprise: a gate, disposed on the substrate; a gate insulator, disposed on the substrate and covering the gate; a source/drain layer, disposed on the gate insulator, exposing a portion of the gate insulator above the gate; an isolated layer, disposed on the source/drain layer, having an opening that exposes a portion of the gate insulator and a portion of the source/drain layer above the gate; and a channel layer, disposed in the opening of the isolated layer, wherein the channel layer is protruded above the opening to cover the isolated layer and is electrically connected to the source/drain layer, wherein the source/drain layer of the switch thin film transistor is electrically connected to the gate of the driving thin film transistor; an organic electro-luminescent unit, comprising: an anode, disposed on the substrate, and is electrically connected to the source/drain layer of the driving thin film transistor; a luminescent layer, disposed on the anode; a cathode, disposed on the luminescent layer; and a packaging substrate covering the channel layers of the switch thin film transistor and the driving thin film transistor, the luminescent layer, and the cathode.