A display device includes: a display having transparency; a first detector which, in operation, detects a position indicated by an indicator on the display; a second detector which, in operation, detects position information and an orientation of the display; and a controller which, in operation, displays a virtual image corresponding to the position information and the orientation detected by the second detector on the display and changes a display mode of the virtual image according to the position indicated by the indicator and detected by the first detector.