An input detection device includes a plurality of drive electrodes which are arranged in parallel to each other in plan view, and each of which has a pair of ends. At least one drive electrode among the plurality of drive electrodes is driven such that a first drive state where a first drive voltage is supplied to one end of the drive electrode and a second drive voltage different from the first drive voltage is supplied to the other end of the drive electrode and a second drive state where the second drive voltage is supplied to the one end and the first drive voltage is supplied to the other end temporally alternately occur.