A digital liquid crystal display (LCD) driving circuit is provided for driving an LCD to display video images. The LCD driving circuit comprises a digital gamma-correction and inversion circuit for performing a digital gamma-correction process on the digitized video signal and then performing a polarity inversion process on selected lines of the video signal. The digital gamma-correction and inversion circuit is coupled directly to a display memory unit so as to fetch the digitized video signal directly from the display memory unit. A digital-to-analog conversion means is coupled to the digital gamma-correction and inversion circuit for converting the digital output of the digital gamma-correction and inversion circuit into analog form. Further, the LCD driving circuit comprises an LCD timing control circuit, which is coupled to receive a plurality of video control signals associated with the digitized video signal, for converting the video control signals into a LCD timing control signal to control the LCD to display the video signal. Still further, the LCD driving circuit comprises a PWM and shutdown circuit for supplying power to the LCD and shutting down the LCD when the LCD has been idle for a preset period. Most of the constituent circuit components of the LCD driving circuit can be implemented in a single LSI integrated circuit. The LCD driving circuit is therefore compact in size, low in manufacturing cost, and low in power consumption.