An electrode-wiring substrate includes first routing wires (108) made of gate material for forming gate electrode wires (105) and second routing wires (110) made of source material for forming source electrode wires (106). The first routing wires (108) and the second routing wires (110) are arranged alternately so as not to coincide with each other when viewed in plan. The second routing wires (110) are electrically connected to the gate electrode wires (105) via first contact holes (111) and to gate electrode terminals (102) via second contact holes (113).