Patent ID: 7754541

Claim:
A display device comprising: a thin film transistor, a pixel electrode, and a storage capacitor on an insulative substrate, wherein: the thin film transistor comprises a semiconductor layer, a gate insulating film which covers the semiconductor layer, a gate electrode having a region which is opposed to the semiconductor layer via the gate insulating film, and a source electrode which is electrically connected to the semiconductor layer, wherein the pixel electrode is electrically connected to the semiconductor layer; and wherein the storage capacitor comprises: a lower electrode having a stacked structure, the stacked structure comprising a semiconductor extension portion which is configured by extension of the semiconductor layer and a conductive film which is formed on and contacts the semiconductor extension portion, and the conductive film is formed on only the semiconductor layer including the semiconductor extension portion; a dielectric insulating film comprising the gate insulating film; and an upper electrode of the storage capacitor which is opposed to the lower electrode via the dielectric insulating film.