the purpose is to reduce power consumption of an image display apparatus . an image display apparatus includes a display panel ; a light source that irradiates the display panel ; and a control unit . when a picture signal input to the image display apparatus is displayed on the display panel and controlled to have a target display brightness , the control unit modifies the amount of light emitted by the light source and performs picture signal brightness correction so as to compensate for the modification of the light source luminance . when the amount of change in light source luminance is smaller than a threshold value , the control unit decreases the light source luminance without performing the picture signal brightness correction .