A display device includes a display part, a storage stores original image data of an original image, a detector detects a touch operation being performed on a screen of the display part, and outputs touch position information indicating a touch position, and a controller displays a base image by resizing the original image according to a display resolution of the display part on the display part. When the touch operation is detected, the controller determines an enlargement target area that is a part of area on the base image including a position corresponding to the touch position, resizes and cuts an area on the original image to generate a partial enlarged image in which the enlargement target area is enlarged, the area corresponding to the enlarged target area, and display the base image and the partial enlarged image which is displayed over a part of the base image.