An embodiment of the present invention provides a display device, a display method and a display apparatus that may control a user to play electronic products at a suitable distance and avoid myopia of the user. The display device comprises: a distance sensor, a display screen, a controller, and a fuzzy processing device, wherein the distance sensor is configured to determine the distance between a user of the display device and the display screen, and wherein the controller is configured to control the fuzzy processing device when the distance between the user of the display device and the display screen is not greater than a predetermined value such that the fuzzy processing device carries out a fuzzy process on the image picture displayed on the display screen and the processed image picture is demonstrated to the user of the display device.