Patent ID: 8111228

Claim:
A method to reduce power dissipation and improve brightness uniformity of pixels in a Liquid Crystal Display (LCD), wherein said method comprises steps of: substituting a multi-step waveform having a predefined (V x ) to replace each and every pulse in row waveforms that are applied to a predetermined number of rows of the LCD; and replacing each and every data pulse in data waveforms applied to all columns with a multi-step waveform having a predefined peak amplitude (V y ) by choosing the sign of V y to be the same as that of the data pulse to achieve predefined root mean square (rms) voltages across pixels, wherein said multi-step waveform comprising ascending and descending steps having a predefined step-width (T s ) and a period (T) and the last step (T L ) of the multi-step waveform comprises a voltage (β) having a polarity that is opposite to that of a peak voltage (T f ) to bring a row select voltage to zero at the end of period T to improve brightness uniformity of pixels.