To provide a display device that displays a whole display image without changing the content of the image to be displayed, and restricts ghosting of the display image.

A display device 100 according to the invention, for displaying input image data 10, comprises: a display device 3 having a displayable pixel area 3b having more extra pixel areas, compared to the resolution of the image data 10; and a display position changing part 2 configured to change the display position coordinates of an image 3a of the image data 10 within the range where the image 3a is not located beyond the displayable pixel area 3b. An arbitrary image is displayed in a pixel area where the image data 10 in the displayable pixel area 3b is not displayed.