Patent ID: 6927809

Claim:
An active matrix substrate including a plurality of semiconductor elements formed on a board, a semiconductor element portion of the active matrix substrate, in which the plurality of semiconductor elements are formed, comprising: a storage capacitor formed on the board; a first insulating layer formed on the storage capacitor; a semiconductor layer formed above the storage capacitor via the first insulating layer: a gate insulating layer formed on the semiconductor layer; a gate electrode layer including a gate electrode formed above the semiconductor layer via the gate insulating layer; a second insulating layer covering the gate electrode layer and the semiconductor layer; a first light-shielding layer formed above the semiconductor layer via the second insulating layer to cover at least a channel region of the semiconductor layer; a third insulating layer formed on the first light-shielding layer; a source electrode layer including a source electrode and a drain electrode formed on the third insulating layer; a fourth insulating layer formed on the source electrode layer; and a pixel electrode formed on the fourth insulating layer and electrically connected to the drain electrode, wherein the first light-shielding layer is conductive and has a drain-side light-shielding portion electrically connected to one of a pair of electrodes of the storage capacitor and also electrically connected to the drain electrode.