Patent ID: 7499062

Claim:
An image display method for displaying a gradation by a subfield method, wherein, a plurality of gradation levels are adopted as display-use gradation levels, each display-use gradation level including a non-emitted subfield having a luminance weight smaller than that of an emitted subfield having the maximum luminance weight, the non-emitted subfield not lying next to another non-emitted subfield within the respective display-use gradation level; for a first display region in which a first image does not move or a gradation level thereof does not change monotonously, a gradation level to be displayed for the first display region is converted to a display-use gradation level for displaying first image; for a second display region in which a second image moves and also a gradation level thereof changes monotonously, after a gradation level to be displayed for the second display region is converted to a first gradation level, which is an average of n (where n is an integer of two or greater) levels of display-use gradations selected from the plurality of display-use gradation levels, a first diffusion process, in which the first gradation level is averaged by using the n levels of display-use gradations spatially and/or chronologically, is performed for displaying the second image.