Patent ID: 8441011

Claim:
A display device comprising: a substrate; a scan line and a signal line formed over the substrate along two perpendicular directions; a capacitor wiring having a light transmitting property formed over the substrate; a protective insulating layer; a gate electrode layer formed in a pixel region, the gate electrode layer being in electrical contact with the scan line; a semiconductor layer overlapping with the gate electrode layer and interposed between the gate electrode layer and the protective insulating layer; a gate insulating layer interposed between the semiconductor layer and the gate electrode layer; a source electrode layer and a drain electrode layer in electrical contact with the semiconductor layer; a pixel electrode having transparency and being in electrical contact with the signal line through a serial connection comprising the drain electrode layer, the semiconductor layer and the drain electrode layer; and a capacitor formed in the pixel region, the capacitor comprising the capacitor wiring, a capacitor electrode, and a dielectric layer interposed between the capacitor wiring and the capacitor electrode.