Patent ID: 8547494

Claim:
A display device comprising: a substrate; a display region having a pixel switch, a pixel electrode which is connected to the pixel switch, and a transparent common electrode formed over the substrate; a peripheral region having a gate signal line which is connected to the pixel switch, and a common connection line which is connected to the transparent common electrode; an insulating layer which is disposed on the gate signal line and the common connection line; a conductive layer which is disposed on the insulating layer and crosses the gate signal line and the common connection line in the peripheral region; a first semiconductor film which is disposed between the insulating layer and the conductive layer; a second semiconductor film which is disposed between the insulating layer and the conductor layer and is separated from the first semiconductor film; wherein the conductor layer is connected to the gate signal line via a pair of diodes; wherein the gate signal line is arranged in the display region and the peripheral region, the common connection line is arranged in the peripheral region and is connected to the transparent common electrode in the peripheral region, and the transparent common electrode is arranged in the display region; wherein the first semiconductor film overlaps, in plan view, a region where the gate signal line crosses the conductive layer; and wherein the second semiconductor film overlaps, in plan view, a region where the common connection line crosses the conductive layer.