Patent ID: 8102385

Claim:
A driving circuit of a display device comprising: a signal source that outputs a first data signal; a modulator that generates a second data signal using the first data signal only, wherein the modulator modulates an amplitude and pulse width of the first data signal in itself according to a gray level of the inputted first data signal to produce the second data signal, wherein the second data signal has a greater amplitude and shorter pulse width than the first data signal, the amplitude and the pulse width of the second data signal determined according to the gray level of the first data signal, and wherein the modulator outputs the second data signal for all pray levels; and a combiner that combines the first data signal with the second data signal, wherein an analog data signal based on the combined data signal is provided to a data line of a display panel of the display device, wherein the first data signal is supplied to the combiner prior to the second data signal, and wherein a first portion of the combined data signal has an amplitude substantially equal to the amplitude of the second data signal, wherein a second portion of the combined data signal has an amplitude substantially equal to the amplitude of the first data signal.