ACTIVE MATRIX SUBSTRATE, METHOD FOR MANUFACTURING ACTIVE MATRIX SUBSTRATE, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

Provided are an active matrix substrate to be used for a liquid crystal display device and a liquid crystal display device provided with the active matrix substrate. An active matrix substrate (30) is provided with a substrate, a gate wiring (50) formed on the substrate, and an interlayer insulating layer (90) for insulating another layer formed on the gate wiring (50) and the gate wiring (50) one from the other. In the active matrix substrate (30), the interlayer insulating layer (90) is arranged on the substrate so that in a partial region of the substrate, the interlayer insulating layer (90) is not arranged on an upper surface of the gate wiring (50) and the upper surface is exposed, while the interlayer insulating layer (90) is brought into contact with an end surface of the gate wiring (50) at least on the end surface along the longitudinal direction. Since generation of failures of the active matrix substrate is reduced in manufacture and component mounting, the active matrix substrate can be used for liquid crystal display device manufacture wherein low cost and high reliability are demanded.