A display device includes: a pixel array having pixels arranged in matrix and having a first side parallel to a row and a second side opposite to the first side; scanning lines arranged in each row of the pixel array to supply a scanning signal to the pixels arranged in a corresponding row; signal lines arranged in each column of the pixel array to supply an image signal to the pixels arranged in a corresponding column; drive electrodes arranged in a column of the pixel array and to which a drive signal to detect an external proximate object is supplied; and a first drive electrode circuit arranged along the first side and connected to control lines and the drive electrodes arranged in the pixel array to supply the drive signal to, among the drive electrodes, the drive electrode specified by a selection signal supplied via the control lines.