US Patent 7221304 Apparatus for driving display panel and digital-to-analog converter thereof

An apparatus for driving display panel and a digital-to-analog converter (DAC) thereof are provided. The (M+L)-bit digital data provided by the timing controller is converted into N-channel analog output voltages to control and drive the display panel. The number of the analog voltage lines and the number of the selection switches of the (M+L)-bit DAC in the apparatus for driving display panel can be greatly reduced according to the present invention. Compared to the conventional technology, the chip area of the apparatus for driving display panel is reduced and the cost is thus minimized.