DISPLAY DEVICE, MANAGEMENT DEVICE, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To allow a user to easily and definitely confirm a deterioration in image quality of at least a partial area of a display image.SOLUTION: A display device 100 includes first detection means 106 for detecting an image quality changed area where image quality has changed in a display image displayed on the display device by comparing a pre-photographed image with a post-photographed image obtained by photographing the display image before and after a change, and first processing means 106 for performing at least one of processing of displaying the image quality changed area overlapped on the display image and processing of creating and displaying information on the amount of a change in image quality in the image quality changed area.SELECTED DRAWING: Figure 1