Patent ID: 7843414

Claim:
A system comprising: a display element having an original luminance value in a frame period corresponding to an input data between a minimum gray scale and a maximum gray scale; an adjusted gray scale generator for receiving the input data and outputting a plurality of adjusted gray scale signals including a first adjusted gray scale signal and a second adjusted gray scale signal; and a driving unit for driving the display element according to the first adjusted gray scale signal in a first subframe period and driving the display element according to the second adjusted gray scale signal in a second subframe period to result in an adjusted luminance value of the display element, wherein the first subframe period and the second subframe period are within the frame period and the second subframe period follows the first subframe period; wherein when the input data is between a first gray scale and a second gray scale, wherein the first gray scale and the second gray scale are predetermined values both higher than the minimum gray scale and lower than the maximum gray scale, the first adjusted gray scale signal is higher than the second adjusted gray scale signal and the first adjusted gray scale signal is substantially equal to a third gray scale and is lower than the maximum gray scale, wherein the third gray scale is lower than the second gray scale, and wherein when the input data is between the second gray scale and the maximum gray scale value, the first adjusted gray scale signal is equal to the second adjusted gray scale signal.