Patent ID: 8502760

Claim:
A circuit for controlling a color sequential liquid crystal display (LCD), comprising: a light-source driving circuit, producing a plurality of driving signals and transmitting to the color sequential LCD for controlling the color sequential LCD to produce a plurality of color backlights; a data driving circuit, producing a data signal and transmitting to the color sequential LCD; and a scan driving circuit, producing a first scanning signal and a second scanning signal, and transmitting to the color sequential LCD, the voltage levels of the first scanning signal and the second scanning signal corresponding to each of the color backlights being select levels alternately to scan the pixels of the color sequential LCD for displaying a frame, the voltage level of the second scanning signal being a non-select level when the voltage level of the first scanning signal being the select level, and the voltage level of the first scanning signal being the non-select level when the voltage level of the second scanning signal being the select level; in the frame, the voltage level of the first scanning signal firstly being the select level to firstly scan the pixels of the color sequential LCD, and then the voltage level of the second scanning signal being the select level to scan the pixels of the color sequential LCD; in next frame, the voltage level of the second scanning signal firstly being the select level to firstly scan the pixels of the color sequential LCD, and then the voltage level of the first scanning signal being the select level to scan the pixels of the color sequential LCD; wherein the color sequential LCD displays the frames according to the data signal, the first scanning signal, the second scanning signal, and the plurality of color backlights.