PURPOSE: To provide a liquid crystal driving circuit capable of removing an error component of an amplification factor from a video output signal of each channel.

CONSTITUTION: The liquid crystal driving circuit for dividing a liquid crystal panel into plural channels in a horizontal direction and driving a liquid crystal is incoporated with an adding circuit 9 adding a saw-tooth correction voltage correcting a saw-tooth wavform to an amplitude setting voltage and outputting the addition result, sample-hold circuits 6a, 6b, 6c holding an error voltage showing the error of the video output signal, first multiplying circuits 11a, 11b, 11c multiplying the addition result supplied from the adding circuit 9 by the error voltage held by the sample-and-hold circuits 6a, 6b, 6c and outputting the multiplication result and second multiplying circuits 10a, 10b, 10c multiplying a video input signal by the multiplication result supplied from the first multiplying circuits 11a, 11b, 11c for controlling the amplitude of the video output signals of plural channels.