A display device is provided and includes display panel including display region; and detection device, wherein detection device includes: detection electrodes arrayed in sensor region of substrate and provided in region overlapping display region; drive circuit wires coupled to detection electrodes, extending in second direction, and disposed side by side in first direction; analog front ends each configured to receive at least one detection signal corresponding to capacitance change in at least one of detection electrodes caused when drive signals are supplied; multiplexer capable of changing number of wires simultaneously coupled to one of analog front ends; and control circuit configured to control multiplexer, and control circuit changes number of detection electrodes simultaneously coupled to one of analog front ends depending on distance between target object and detection electrodes in third direction intersecting first and second directions.