Patent ID: 8130188

Claim:
A method for realizing gray levels of a liquid crystal display unit, the method comprising the steps of: dividing a liquid crystal response time interval for a pixel during one frame into N sequential sub-frames, where N is an integer, having a value that is greater than or equal to three, each of the N, sequential sub-frames being of substantially equal time duration; enabling the pixel and applying a gamma voltage to the pixel during one frame; filling electric charges in the pixel by using the gamma voltage during each of the N specific sub-frames; and disabling the pixel at an end time point of a predetermined i th sub-frame, i th +1 to N subframes being disabled, the i being an integer, and the end point time of disabling the pixel being independently controllable in each frame by selecting independently, the end point time of the i th sub-frame of each frame; wherein an amount of light passing through the pixel is adjusted by controlling a level of the gamma voltage while regulating a time point at which the pixel is disabled at an end time point of a predetermined i th sub-frame.