In a video display apparatus, a backlight for illuminating a liquid
crystal panel is segmented into a plurality of areas. A frequency
distribution processing unit calculates a dark pixel amount from the
frequency distribution of the gradation values of pixels in a video
image. A backlight control unit calculates a lower limit of luminance in
each area included in the backlight so that the lower limit increases as
the dark pixel amount becomes smaller. The backlight control unit adjusts
the luminance in each area individually according to the gradation values
in each portion of the video image, and adjusts the luminance in an area
where the luminance is less than the lower limit to the lower limit. The
difference in luminance between the areas illuminating dark portions of
the video image is decreased, and the occurrence of luminance blur
resulting from the difference in luminance between the areas is reduced.