Liquid crystal display

An in-plane switching liquid crystal display, comprising:

• thin film transistors on a substrate,
• scan lines and signal lines connected to the thin film transistors and longitudinally and latitudinally crossing each other,
• common wiring formed by the same layer as the scan lines and generating electric fields substantially parallel to the substrate between a common electrode connected to the common wiring and covering at least the signal lines partially via an interlayer insulating film formed on the thin film transistors,
• a pixel electrode connected to the thin film transistors, and
• contact holes connecting the common wiring and the common electrode to each other and are formed at a ratio of one contact hole to a plurality of the pixels with respect to the pixels divided and defined by the scan lines and the signal lines.