Patent ID: 8841671

Claim:
A semiconductor device comprising: a first electrode over a substrate; a gate wiring over the substrate; a wiring over the first electrode; a first insulating film over the first electrode, the gate wiring, and the wiring; a semiconductor film over the first insulating film; a second electrode and a third electrode over the semiconductor film; a second insulating film over the second electrode and the third electrode; a conductive film over the second insulating film; a fourth electrode over the second insulating film and comprising a first opening pattern and a second opening pattern; an alignment film over the fourth electrode and the conductive film; and a liquid crystal over the alignment film, wherein the gate wiring and the wiring are arranged in parallel, wherein the wiring overlaps with the first electrode, wherein the fourth electrode is in direct contact with the third electrode through a contact hole, wherein the conductive film is electrically connected to the wiring and the first electrode, wherein the conductive film is in direct contact with the wiring, wherein the first opening pattern is different from the second opening pattern in a direction, and wherein the contact hole does not overlap with the wiring.