Liquid crystal display device

A liquid crystal display device comprising:

• a first pixel and a second pixel which is adjacent to the first pixel, each of the first pixel and the second pixel comprising:
• a first wiring;
• a first insulating film over the first wiring;
• a second wiring over the first insulating film, the second wiring being perpendicular to the first wiring;
• a transistor comprising a gate electrode, a gate insulating film, a semiconductor layer, a source electrode, and a drain electrode;
• a second insulating film over the first insulating film and the transistor;
• a third insulating film over the second insulating film;
• and
• a substrate over the third insulating film,
• wherein the second wiring in the first pixel is spaced from the second wiring in the second pixel,
• wherein the second wiring in the first pixel and the second wiring in the second pixel are electrically connected to each other with a connection electrode which is located over the second insulating film,
• wherein the first insulating film and the gate insulating film exist in the same layer,
• wherein the third insulating film is located over the connection electrode,
• wherein the third insulating film is configured to adjust a cell gap of the liquid crystal display device, and
• wherein the third insulating film is in contact with the connection electrode and the substrate.