Patent ID: 7733358
Filing Date: 2010-06-08
Classification: G09G

Abstract:
1. A driving method for driving a display device comprising a light source and a storage for storing at least one reference frame of image data, the driving method comprising: receiving a current frame of image data; comparing grey levels between pixels of the current frame of image data and the corresponding pixels of the at least one reference frame of image data; determining a pixel quantity of pixels having different grey levels in the current frame of image data and the reference frame of image data; and based on the determined pixel quantity, calculating and outputting a signal controlling a light emitting duty ratio and an amplitude of the light source while displaying the current frame; wherein the display device further comprises an array S of 1×R, and after the step of determining the pixel quantity N(M) associated with the current frame of image data which is a M th frame, the driving method further comprises, saving the determined pixel quantity N(M) in the array S, wherein the array S has a format of S=[N(M), N(M−1), N(M−2) . . . , N(M−(R−1))], and R represents the quantity of the at least one reference frame; and wherein the pixel quantity N(M) associated with the current frame of image data, which is a M th frame having I×J pixels, is determined as where, when a difference between a pixel (i,j) of the M