Patent ID: 8223138

Claim:
An active matrix display device, comprising: a plurality of pixels; a driving circuitry arranged to drive each pixel with a predetermined drive voltage level during a first phase followed by an overdrive drive voltage level during a second phase; and a partial frame store of which the capacity is limited for storing at most a fraction of one full frame of the video data for the display at a time, wherein video data of a first fraction of one full frame is written into the partial frame store at a first rate during the first phase and video data of a second fraction of one full frame is continuously written into the partial frame store during the second phases, wherein during the second phase the video data of the first fraction of one full frame stored in the partial frame is overwritten by the video data of the second fraction of one full frame as soon as the entire partial frame store is written; wherein the video data of one full frame is read out of the partial frame store at a second rate which is greater than the first rate, during only the second phase; and wherein the video data read out of the partial frame store is processed for deriving the overdrive drive voltage level.