Patent ID: 6043812
Filing Date: 2000-03-28
Classification: G09G

Abstract:
A liquid crystal drive circuit in which there are provided n (n is integer of 2 or more) number of output circuits supplied with picture signals to generate and output drive signals for driving a liquid crystal panel,each of the output circuits comprising a sample-hold circuit including a first charge storage section and a second charge storage section connected in parallel, the sample-hold circuit being supplied with the picture signal and a hold switching signal to store the picture signal into either one of the first charge storage section and the second charge storage section alternately in accordance with the hold switching signal and output the picture signal, andwaveform shapers are provided to each of said output circuits,the waveform shapers being connected to each other in series, the hold switching signal being inputted to the waveform shapers so that the hold switching signal is propagated in succession, outputs from respective ones of the waveform shapers being delivered to corresponding ones of the output circuits.