Patent ID: 8884992

Claim:
A liquid crystal display device comprising: a liquid crystal display panel including a plurality of data lines and a plurality of gate lines crossing each other; a data driving circuit converting digital video data into positive and negative data voltages and supplying the positive and the negative data voltages to the plurality of data lines; a gate driving circuit supplying a gate pulse to the plurality of gate lines sequentially; a timing controller configured to send the digital video data to the data driving circuit, and to control operating timings of the data driving circuit and the gate driving circuit based on timing signals; a first data modulator configured to modulate an input video data; and a color temperature tuner configured to tune a color temperature of the modulated input data, and to output the tuned input video data to the timing controller, wherein the timing controller modulates an input digital video data according to at least one of a liquid crystal response characteristic improving algorithm, a contrast ratio enhancing algorithm, a favor color compensating algorithm, and an electric consumption improving algorithm, compensates the color temperature of the input digital video data having a shifted color temperature according to the data modulating algorithm, and then sends the compensated digital video data to the data driving circuit, wherein the timing controller includes: a second data modulator configured to modulate the input digital video data; and a color temperature compensator configured to compensate a color temperature mismatched of the modulated data by the second data modulator, and wherein a data modulating process does not exist between the color temperature compensator of the timing controller and the data driving circuit.