<p>Provided is a shift register supported by an insulating substrate and formed by a plurality of stages. Each of the stages successively outputs an output signal and includes: a first transistor (MA) which outputs an output signal; and a plurality of second transistors (ME, MF) each having a source region or a drain region electrically connected to the gate electrode of the first transistor (MA). The second transistors include a multi-channel transistor having an active layer containing at least two channel regions, a source region, and a drain region. This improves characteristic of the shift register constituting the monolithic gate driver.</p>
