1. A display apparatus comprising: a display panel comprising a data line, a gate line and a sub-pixel connected between the data line and the gate line; a gamma data generator comprising a spatial pattern having a high gamma and a low gamma corresponding to a plurality of sub-pixels arranged in a matrix array for a space division configuration, a temporal pattern having the high gamma and the low gamma corresponding to the plurality of sub-pixels for a time division configuration, and a spatio-temporal pattern having the high gamma and the low gamma corresponding to the plurality of sub-pixels for a space and time division configuration, and to generate gamma data of a sub-pixel using at least two of the spatial pattern, the temporal pattern or the spatio-temporal pattern in a cascade configuration; and a data driver configured to convert the gamma data to a data voltage and to output the data voltage to the data line.