Patent ID: 7626646

Claim:
A substrate for a display device comprising: a plurality of first bus lines formed of a first electrically conducting material in parallel on a base substrate, and receiving drive signals from one end side of the base substrate; a plurality of second bus lines formed of a second electrically conducting material in parallel and intersecting the plurality of first bus lines via an insulating film; a plurality of third bus lines formed of the first electrically conducting material in parallel with the plurality of first bus lines; a first common wiring formed of the first electrically conducting material on the other end side of the base substrate and connected to the plurality of third bus lines; a plurality of connection wirings formed of a third electrically conducting material on the other end side of the base substrate and connected to the plurality of third bus lines; and a second common wiring formed of the second electrically conducting material on the other end side of the base substrate and electrically connected to the plurality of third bus lines through the plurality of connection wirings.