The present invention relates to a display device and a method of compensating mura thereof. The display device comprises: a memory for storing compressed compensation data; a post-processing module for removing blocking artifacts from the compressed compensation data after restoring the compressed compensation data; a data modulation part for modulating the data of an input image by using the compensation data restored by the post-processing module; and a display panel driving part for writing data modulated by the data modulation part to the pixels of the display panel. So, it is possible to reduce the memory capacity of a compensation circuit for compensating the mura.;COPYRIGHT KIPO 2017
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