Patent ID: 8405808

Claim:
An active matrix substrate comprising: a substrate; a plurality of scanning lines formed on the substrate; an insulating film covering the plurality of scanning lines; a plurality of signal lines intersecting the plurality of scanning lines via the insulating film; a plurality of thin film transistors formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and a plurality of pixel electrodes each capable of being electrically connected to the corresponding signal line via the plurality of thin film transistors; wherein each of the plurality of thin film transistors is a thin film transistor having: a gate electrode electrically connected to the corresponding scanning line; a source electrode electrically connected to the corresponding signal line; and a drain electrode electrically connected to the corresponding pixel electrode; the insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer; the first insulating layer is formed of an insulating material containing an organic component, and is formed so as to underlie the second insulating layer; the gate electrode is formed on the first insulating layer, and is formed of a conductive layer which is different from that of the plurality of scanning lines, the gate electrode being electrically connected to the corresponding scanning line via a contact hole which is provided in the first insulating layer; and both of the first insulating layer and the second insulating layer are provided at intersections between the signal lines and the scanning lines.