Patent ID: 8791931

Claim:
An image display apparatus comprising: a display panel including an image display area and a dummy pixel area different from the image display area; an optical sensor detecting light emission luminance of the dummy pixel area on the display panel; and a control unit dividing the image display area on the display panel into a plurality of division areas, allowing pixels within the dummy pixel area to perform light emission to the same degree as the light emission of one or a plurality of pixels within each division area, and correcting luminance or chromaticity of the pixels within each division area based on the light emission luminance of the dummy pixel area detected by the optical sensor, wherein the division areas on the display panel are set so as to correspond to non-emission areas occurring due to a difference between an aspect ratio of an image displayed in the image display area and an aspect ratio of the image display area, wherein a division area having no dummy pixel performing the light emission corresponding to a driving state of the pixels in the division area is set as the division area on the display panel, wherein the image display apparatus further comprises a memory unit integrating and storing a light emission history of specific pixels in the division area having no dummy pixel, wherein the control unit corrects the light emission luminance or chromaticity of the pixels in the division area having no dummy pixel from the light emission history stored in the memory unit, wherein the division area having no dummy pixel is located at a position between the plurality of division areas having the corresponding dummy pixels, and wherein the light emission luminance of the pixels in the division area having no dummy pixel is corrected using the light emission luminance of the dummy pixels of the adjacent division area and an integrated value of the light emission luminance stored in the memory unit.