Display device, display method, display program, and computer readable medium

A display device (1) comprising a display unit (20) that displays an image, a touch panel (10) that is provided on a front surface of the display unit (20), a position detection unit (31) that detects a position of a user's finger (F) contacting the touch panel (10), a display control unit (32) that updates an image display position in accordance with the position of the user's finger (F), and a moving amount calculation unit (33) that, if the user's finger (F) lifts from the touch panel (10), calculates a reference moving amount and direction of the image display position, wherein the display control unit (32), if the user's finger (F) lifts from the touch panel (10), first updates the image display position, and next updates in a predetermined display cycle the image display position in the moving direction until the moving amount is equal to or less than a minimum moving amount.