Patent ID: 7466324

Claim:
A method of adjusting a brightness of a display device, comprising the steps of: providing a plurality of saturated level-adjust voltages to various level adjustments of the display device when a central brightness is saturated, wherein the step of providing a plurality of saturated level-adjust voltages to various level adjustments of the display device when the central brightness is saturated comprising: driving the display device with a dc voltage; providing a fixed value to the common voltage; and measuring the saturated level-adjust voltage of each level adjustment; performing a computation of the saturated level-adjust voltage of each level adjustment to obtain a display voltage for each level adjustment; performing a computation of the saturated level-adjust voltage, a common voltage and the display voltage of each level adjustment to obtain a feed-through voltage for each level adjustment; performing a computation of the feed-through voltage and the saturated level-adjust voltage of each level adjustment to obtain a liquid crystal capacitance value for each level adjustment; and performing a simulation of the liquid crystal capacitance value of each level adjustment to obtain an optimized level-adjust voltage for each level adjustment.