To provide a novel input/output panel that is highly convenient or reliable, a novel input/output device that is highly convenient or reliable, a novel input/output panel, a novel input/output device, or a novel semiconductor device. The input/output panel includes a pixel, a sensor element, a signal line, a control line, and a scan line. The sensor element has a region overlapping with the pixel. The signal line is electrically connected to the sensor element and the pixel. The control line is electrically connected to the sensor element. The scan line is electrically connected to the pixel.