Patent ID: 8432384

Claim:
An active matrix substrate for use as a substrate of a display panel, the substrate comprising: data wirings; scanning wirings arranged in a matrix; pixels provided in the vicinities of intersections of the data wirings and the scanning wirings; scanning wiring drive circuits arranged to sequentially output scanning signals to a plurality of the scanning wirings in a predetermined scanning direction, the scanning wiring drive circuits are provided along the scanning direction; and a control portion arranged to control respective ones of the scanning wiring drive circuits; wherein each of the scanning wiring drive circuits includes a vacant terminal that is not connected to any one of the scanning wirings; among the scanning wiring drive circuits, in a scanning wiring drive circuit provided on a first end side of the predetermined scanning direction, a terminal that is connected to one of the scanning wirings is provided on either one of the first end side of the scanning direction and a second end side of the scanning direction; among the scanning wiring drive circuits, in a scanning wiring drive circuit provided on the second end side of the scanning direction, a terminal that is connected to the scanning wiring is provided on the other of the first end side and the second end side of the scanning direction; the control portion is configured to output instruction signals to the scanning wiring drive circuits so that a first scanning operation in a first scanning direction, in which the first scanning operation is performed from the scanning wiring drive circuit provided on the first end side of the scanning direction to the scanning wiring drive circuit provided on the second end side of the scanning direction, is performed and thereafter a second scanning operation in a second scanning direction, in which the second scanning operation is performed from the scanning wiring drive circuit provided on the second end side of the scanning direction to the scanning wiring drive circuit provided on the first end side of the scanning direction, is performed; and each of the scanning wiring drive circuits includes an equal number of the terminals that are connected to the scanning wiring and an equal number of the vacant terminals that are not connected to any one of the scanning wirings.