There is provided a display processing device that increases graphics display performance, including: an OSD plane (211) having a first OSD area (671) and a second OSD area (672) for storing graphics images; a Z-order management unit (601) which stores a vertical order assigned to the first OSD area (671) and the second OSD area (672), and which provides a notification regarding that vertical order; a CPU (217) which executes a downloaded application (506), thereby storing the graphics images in the first OSD area (671) and the second OSD area (672) based on the vertical order notified by the Z-order management unit (601); and a display (212) which superimposes the graphics images stored in the first OSD area (671) and the second OSD area (672) in accordance with the abovementioned vertical order, and displays the images.