| 摘要 |
A drive circuit for driving data lines of a display panel in a display device is provided with grayscale voltage lines, a grayscale voltage supplying section, a DA converter circuit, an output voltage/precharge voltage switch circuitry and an output amplifier circuit. The grayscale voltage supplying section receives a plurality of reference voltages and a precharge voltage, and is configured to output a plurality of grayscale voltages generated from the reference voltages to the respective grayscale voltage lines and to selectively supply the precharge voltage to at least one of the grayscale voltage lines. The DA converter circuit receives the plurality of grayscale voltages, selects one of the plurality of grayscale voltages in response to a video signal and outputs the selected grayscale voltage. The output voltage/precharge voltage switch circuit is configured to selectively output the grayscale voltage received from the DA converter circuit or the precharge voltage received from the at least one grayscale voltage line, to corresponding one of the data lines of the display panel. |
