Patent ID: 8704745

Claim:
A driving device, comprising: a memory unit, for providing a storage image and a previous comparison result; a comparator, coupled to the memory unit, for comparing a present image with the storage image and outputs a present comparison result; a compensation unit, coupled to the memory unit, for processing the present image according to the storage image to generate a plurality of processed present images; a selector, coupled to the compensation unit, the comparator, and the memory unit, for selecting and outputting one of the present image and the processed present images according to the previous comparison result and the present comparison result; and a writing controller, coupled to the comparator and the memory unit, for writing the present comparison result into the memory unit to replace the previous comparison result, and determining whether to write the present image into the memory unit to replace the storage image according to the previous comparison result, wherein the previous comparison result is a comparison result between a previous image and a previous storage image, wherein the compensation unit further comprising: a pre-tilt unit, coupled to the memory unit and the selector, for pre-tilting the present image to generate a first processed present image among the processed present images; and an overdrive unit, coupled to the memory unit and the selector, for overdriving the present image to generate a second processed present image among the processed present images.