1. An image display method, comprising: generating a first video signal of a moving picture plane; generating a second video signal of non-moving picture planes; combining said first video signal and said second video signal to form a composite image plane; displaying said composite image plane on a display; specifying and detecting a moving picture area and a non-moving picture area of said composite image plane; and controlling an image quality of said moving picture area and said non-moving picture area based on a result of said detecting step. displaying said composite image on a display.