Abstract: A liquid crystal panel driving apparatus is adaptive for stably keeping a picture quality independently of a picture pattern and improving a picture quality. In the apparatus, the liquid crystal panel arranged with liquid crystal cells is divided into a number of polarity blocks. Each one of the liquid crystal cells included in each block responds to data signals having polarities contrary to data signals applied to the adjacent liquid crystal cells and responds to data signals having polarities contrary to data signals applied to the liquid crystal cells included in the adjacent blocks. The polarities of data signals applied to all the liquid crystal cells in the liquid crystal panel are inverted every frame interval.

Abstract: A liquid crystal display apparatus with a level shifting function, devices or cells simplifies the circuit configuration and minimize a signal delay therein. The apparatus uses analog switches to shift each voltage level of timing control signals and data signals to be transferred from a controller to driving integrated circuits. The analog switches complementarily deliver high level voltage signals and low level voltage signals into the driving integrated circuits in response to any ones of the timing control signals and the data signals.