Patent ID: 8681087

Claim:
An image display device having a function of controlling a backlight luminance, the device comprising: a display panel including a plurality of display elements; a backlight including a plurality of light sources; an emission luminance calculation section for dividing an input image into a plurality of areas and obtaining luminances upon emission of light sources corresponding to each area as first emission luminances on the basis of a portion of the input image of a corresponding area; an emission luminance correction section for obtaining second emission luminances of the plurality of areas by correcting the first emission luminances of any areas positioned within predetermined ranges from each area on the basis of a maximum luminance position for the corresponding area, the maximum luminance position being a position of a pixel having a maximum luminance value based on the input image; a display data calculation section for obtaining display data for controlling light transmittances of the display elements, on the basis of the input image and the second emission luminances; a panel driver circuit for outputting signals for controlling the light transmittances of the display elements to the display panel, on the basis of the display data; and a backlight driver circuit for outputting signals for controlling luminances of the light sources to the backlight, on the basis of the second emission luminances, wherein, when assuming that post-correction values for the first emission luminances based on predetermined correction data are defined as reference luminances, the emission luminance correction section obtains the second emission luminances in such a way that the second emission luminances are higher than respective reference luminances as for areas positioned on the same side as the maximum luminance position within each area with respect to the center position of the area, and the second emission luminances are lower than respective reference luminances as for areas positioned on an opposite side to the maximum luminance position within each area with respect to the center position of the area.