The present invention relates to an image display apparatus. The image display apparatus according to an embodiment of the present invention includes a display having an organic light-emitting diode (OLED) panel, and a controller to control the display, wherein in response to an input image being a video, when variation a variation in a level of color information of a first pixel data corresponding to a first pixel in the input image is within a predetermined range, and a level of brightness information of the first pixel data is equal to or higher than a first level, the controller detects the first pixel as a pixel in a static area, and decreases the level of brightness of the first pixel data.