Patent ID: 8963965
Filing Date: 2015-02-24
Classification: G09G

Abstract:
1. A data driving circuit comprising: a first compensating section which receives a first gamma curve and generates first compensation data of (N+k) bits corresponding to received current grayscale data of N bits, wherein values of N and k are natural numbers, the current grayscale data comprising current red grayscale data, current green grayscale data and current blue grayscale data; a second compensating section which receives a second gamma curve different from the first gamma curve and generates second compensation data of (N+k) bits corresponding to the current grayscale data of N bits; and a digital-to-analog converter (“DAC”) outputting the first compensation data and second compensation data as analog data signals, wherein the first compensating section comprises: wherein the second compensating section comprises: a second storage section which stores a second red lookup table comprising second sample red compensation data corresponding to second sample red grayscale data of m bits sampled from the current red grayscale data of N bits, a second green lookup table comprising second sample green compensation data corresponding to second sample green grayscale data of m bits sampled from the current green grayscale data of N bits, and a second blue lookup table comprising second sample blue compensation data corresponding to second sample blue grayscale data of m bits sampled from the current blue grayscale data of N bits.