A display device includes a first direction, a plurality of pixels arranged in a second direction intersecting the first direction, at least one scanning signal line connected to the plurality of pixels, a scanning signal line driving circuit connected to the scanning line, the scanning signal line driving circuit includes a switch for outputting a signal to the scanning signal line, a first power supply line for providing a first voltage to the switch, a second power supply line for providing a second voltage smaller than the first voltage to the switch, and the switch is provided between the first power supply line and the second power supply line, a line width of the second power supply line is 4 times the line width of the first power supply line or more and 40 times the line width of the first power supply line or less.