Patent ID: 8044979

Claim:
A method of driving an active display device, the method comprising: generating a digital data for one selected pixel; first driving the same selected pixel to be illuminated with a first illumination intensity in a first illumination interval; second driving the selected pixel to be illuminated with a second illumination intensity in a second illumination interval; and controlling the first and second illumination intensity directly by an analog signal from a driver, wherein the first illumination intensity and the second illumination intensity, and the first and the second illumination intervals are determined in a mapping table according to the digital data and the first illumination intensity and the second illumination intensity are different from each other; the first illumination interval and the second illumination interval are included in one unit frame period; and a length of the first illumination interval and a length of the second illumination interval are independent from the digital data, the length of the second illumination interval is different from the length of the first illumination interval and a relative ratio of the second illumination intensity to the first illumination intensity is changed according to a value of the digital data.