A substrate for a display device has a reduced size and weight. Connecting lines are formed on peripheral region adjacent to display region of a display device, and scan driving signal is applied to scan lines through the connecting lines. The connecting lines includes first connecting lines and second connecting lines. The first connecting lines are formed in a same layer as the scan lines, and the second connecting lines are formed in a same layer as the data lines. The total area of the wirings formed in the peripheral region is reduced, and the size and weight of the liquid crystal display device may be reduced.