Active matrix substrate and display device

An active matrix substrate comprising:

• a plurality of pixel circuits arranged two-dimensionally inside a display region;
• a plurality of scanning lines extending in a first direction inside the display region;
• a plurality of data lines extending in a second direction inside the display region;
• a plurality of lead-out lines that is connected to the data line and that passes in the second direction through an inside of a circuit region set outside the display region;
• a control line extending in the first direction inside the circuit region;
• a plurality of signal lines extending in the first direction inside the circuit region;
• and
• a plurality of switching elements that is arranged inside the circuit region, and that controls a conduction state between the lead-out line and the signal line corresponding to the lead-out line in accordance with a signal on the control line, wherein
• the plurality of signal lines includes a first signal line arranged on one side of the control line inside the circuit region, and a second signal line arranged on other side of the control line inside the circuit region, and
• one of the two adjacent lead-out lines is connected to the first signal line via the switching element, and the other is connected to the second signal line via the switching element.