Patent ID: 8384652

Claim:
A method of operating a display, comprising: providing light having a luminance that varies periodically, the luminance varying continuously between a lower level and a higher level overdriving a pixel circuit of the display to show frames of images modulating the light by using the pixel circuit to generate modulated light; and controlling the amount of overdrive and a phase of the light relative to the overdriving of the pixel circuit such that, during a period that the pixel circuit starts to change from a first gray level to a second gray level and before the pixel circuit starts to change from the second gray level to a third gray level, pulses of the modulated light have a predetermined level of uniformity; wherein the phase of the light is controlled relative to the overdriving of the pixel circuit such that as the luminance of light is increased or decreased continuously in different time periods and changes from the lower level to the higher level, or from the higher level to the lower level, the lower level luminance occurs at one frame and the higher level luminance occurs at another frame so that a transition of one frame of image to another frame of image occurs at a time when the continuously varying luminance of light is between the lower level and the higher level.