Liquid crystal display device

A liquid crystal display device comprising:

• a semiconductor film;
• a first insulating film in contact with the semiconductor film;
• a first conductive film over the first insulating film and overlapping with the semiconductor film;
• a second insulating film in contact with the first conductive film;
• a third insulating film over the second insulating film;
• a second conductive film in contact with the third insulating film and electrically connected to the semiconductor film;
• a first wiring in contact with the third insulating film and electrically connected to the semiconductor film;
• a fourth insulating film over the second conductive film;
• a third conductive film over the fourth insulating film and in contact with the second conductive film;
• and
• a second wiring over the fourth insulating film,
• wherein the first wiring extends in a first direction,
• wherein the second wiring extends in the first direction and comprises a first region in contact with a fourth conductive film,
• wherein the first region extends in the first direction, and
• wherein the third conductive film and the fourth conductive film overlap each other.