To improve operability in a display device and a display method.

Respectively different plural kinds of image information A, B and C (B and C are not shown in the figure) are successively displayed while being moved on a display screen 12 of a display part 11, and a glance position detection part 16 respectively detects the positions of glances L following up the plural kinds of image information displayed while being moved. Then, a position difference comparator 41 and a position error calculating part 42 calculate the error between the display positions of plural kinds of image information on the display screen 12 and the position of the glance and the image information, of which the error is minimum among the plural kinds of image information, is displayed at a prescribed position I of a selected picture display part 13 of the display part 11.