Patent ID: 7176493

Claim:
An active matrix display device, comprising: an insulation substrate; a thin film transistor formed on the insulation substrate, including a semiconductor layer where source/drain regions are formed, gate electrode and source/drain electrodes respectively connected to the source/drain regions; an insulation film formed over the insulation substrate, having an opening portion; and a pixel electrode as a lower electrode, wherein the source/drain electrodes have a dual-layered structure of a transparent conductive layer and a metal layer, the metal layer being enclosed by the insulation film and formed on the transparent layer, wherein the metal layer and the insulation film are etched for exposing a portion of the transparent conductive layer forming any one of the source/drain electrodes, and wherein the pixel electrode extends from the portion of the transparent conductive layer forming any one of the source/drain electrodes and is exposed through the opening portion of the insulation film.