Patent ID: 7557789

Claim:
A method for driving a liquid crystal display (LCD) pixel multiplexed set with a data dependent signal, wherein the LCD pixel multiplexed set contains a plurality of pixels, the method comprising: determining a desired state of each pixel in the LCD pixel multiplexed set; deriving a drive waveform sequence based upon the state of all pixels in the LCD pixel multiplexed set; calculating a root-mean squared (RMS) voltage value for each pixel in the LCD pixel multiplexed set for each potential drive waveform sequence and common waveform sequence combination, wherein the RMS on voltage and the desired RMS off voltage are computed using expressions Vrmsoff=Vdd*sqrt((Num time slots/ 2−1)/Num time slots) and Vrmson=Vdd*sqrt((Num time slots/2+1)/ Num time slots), and wherein Vdd is a voltage level representing logic state “1” in an active high logic system and Num time slots is computed in the first computing; and outputting the drive waveform sequence to the LCD pixel multiplexed set.