Patent ID: 7990401

Claim:
A liquid crystal driving system for processing a video signal, the value of the video signal being selected from a first group of gray scale values having a plurality of integer gray scale values, the liquid crystal driving system comprising: an overdrive unit for comparing a current frame of the video signal with a previous frame to determine in a dynamic state or in a static state, and for calculating an overdrive signal for the dynamic state, wherein the value of the overdrive signal is selected from the first group of gray scale values; a gray scale converter, electrically connected to the overdrive unit, for receiving the video signal from the overdrive unit and converting to a driving signal, wherein the value of the driving signal is selected from a second group of gray scale values having at least one decimal point gray scale and having the same number of gray scale values as that of the first group of gray scale values, wherein the lowest gray scale value in the second group of gray scale values is larger than the lowest gray scale value in the first gray group of gray scale values; and a look-up table unit, including a gamma correction table, for generating a corrective gray scale value of the driving signal through the gamma correction table in the static state and for generating a corrective gray scale value of the overdrive signal through the gamma correction table in the dynamic state.