Display device and driving mehtod thereof

One embodiment of a display apparatus according to the present invention includes mapping unit, a gamma correction unit, the rendering unit, and a split portion. The mapping unit to map the primary color data having information about three juyosaek, generates a map white data including key data mapping, and white information, which includes the red, green, and blue information. The gamma compensation unit compensation look-up table that stores a plurality of gamma compensation value, with reference to the compensation look-up table, a first gamma compensation value and the plurality of gamma corresponding to a first gamma white data of the plurality of gamma compensation value of the compensation value based on the second gamma compensation value corresponding to a second gamma white data and generates a compensation data in which the main gamma compensating for the mapping key data.