CPC G06F 3/1446 (2013.01) [G09G 3/3208 (2013.01); G09G 2300/026 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/045 (2013.01); G09G 2320/046 (2013.01); G09G 2320/103 (2013.01); G09G 2360/145 (2013.01); G09G 2360/16 (2013.01)] | 18 Claims |
1. A video wall comprising:
a plurality of displays arranged adjacent to each other;
an image divider configured to divide an input image into a plurality of images for displaying on the plurality of displays; and
at least one controller configured to control a plurality of image display apparatuses corresponding to the plurality of displays,
wherein in response to a video including a plurality of frames having varied luminance being repeatedly played back on the plurality of image display apparatuses, the at least one controller is configured to extract a luminance value of each sub-pixel of the repeatedly played video during a first period of a repeated playback period, calculate an accumulated luminance value based on the extracted luminance value during the first period, and calculate a luminance compensation value based on the calculated accumulated luminance value during the first period, and the plurality of displays display the video based on the luminance compensation value during a second period following the first period,
wherein the luminance compensation value is inversely proportional to the varied luminance of the plurality of frames.
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