Patent ID: 8582068

Claim:
An active matrix substrate comprising: a plurality of first wirings formed parallel to each other in a display region; a plurality of second wirings formed parallel to each other and so as to intersect the plurality of first wirings in the display region; a plurality of first terminals and a plurality of second terminals arranged in a terminal arrangement region; a plurality of first connecting wirings respectively connecting the plurality of first wirings and the plurality of first terminals; and a plurality of second connecting wirings respectively connecting the plurality of second wirings and the plurality of second terminals, wherein the plurality of first connecting wirings include a plurality of third connecting wirings and a plurality of fourth connecting wirings, the third connecting wirings being formed on a same layer as a layer on which the first wirings are formed, and at least a portion of the fourth wirings being formed on a different layer from the layer on which the first wirings are formed with an insulating material sandwiched therebetween, and the active matrix substrate comprises: a plurality of first switching elements respectively having a gate electrode, a source electrode and a drain electrode, each of the source electrode of the plurality of first switching elements being connected to one of the plurality of third connecting wirings; a plurality of second switching elements respectively having a gate electrode, a source electrode and a drain electrode, each of the source electrode of the plurality of second switching elements being connected to one of the plurality of fourth connecting wirings; a first common wiring connected to the drain electrodes of the first switching elements that are not adjacent to each other among the plurality of first switching elements, and to the drain electrodes of the second switching elements that are not adjacent to each other among the plurality of second switching elements; and a second common wiring connected to the drain electrodes of the first switching elements that are not adjacent to each other and not connected to the first common wiring among the plurality of first switching elements, and to the drain electrodes of the second switching elements that are not adjacent to each other and not connected to the first common wiring among the plurality of second switching elements.