Patent ID: 7655943

Claim:
A flat display device, comprising: a substrate having a capacitor region and a transistor region; a thin film transistor (TFT) formed in the transistor region of the substrate, and having a gate electrode, an organic semiconductor layer, a source electrode, and a drain electrode; a capacitor formed in the capacitor region of the substrate, and having a lower electrode and an upper electrode; a display element connected to one of the source and drain electrodes of the TFT; a gate insulating layer, including at least an organic insulating layer, formed below or on the gate electrode of the TFT; and an inorganic capacitor insulating layer formed between the upper and lower electrodes of the capacitor, wherein the source electrode contacts the organic insulating layer and inorganic capacitor insulating layer, and wherein the inorganic capacitor insulating layer contacts both the lower and upper electrodes of the capacitor.