Patent ID: 8610645

Claim:
A semiconductor device comprising: a first transistor over a substrate; a second transistor over the substrate; a first gate line over the substrate, the first gate line being electrically connected to a gate of the first transistor; a second gate line over the substrate, the second gate line being electrically connected to a gate of the second transistor; a source signal line over the first gate line and the second gate line, the source signal line being electrically connected to one of a source and a drain of the first transistor, the source signal line being electrically connected to one of a source and a drain of the second transistor; an insulating film over the source signal line; a wiring over the substrate, the wiring comprising a first conductive film and a second conductive film electrically connected to the first conductive film; and a pixel electrode over the insulating film, wherein the first conductive film, the first gate line and the second gate line comprises a same material, wherein the first conductive film is positioned between the first gate line and the second gate line, wherein the source signal line overlaps with the first conductive film, wherein the second conductive film is over the insulating film, and wherein the second conductive film overlaps with the first gate line.