Patent ID: 8655083

Claim:
An image processing system, comprising: a difference detecting module, for determining whether second image data is identical to first image data to generate a determination result, wherein the first image data comprising a plurality of sub image data, each corresponding to a display region; an image processing module, for processing the first image data to generate a first image processed result and selectively processing the second image data; the image processing module comprising a data path and a control path; and a shielding determination unit, for determining whether a lower-layer region is completely shielded by other display regions; wherein, according to a reference clock signal, the first image data and the second image data are sequentially transmitted via the data path, and the determination result is transmitted via the control path, and, when the determination result is affirmative, in an image processing period preserved for the second image data, the reference clock signal provided to the data path is gated in response to the determination result, so that, without processing the second image data, the image processing module outputs the first image processed result as a second image output corresponding to the second image data; and wherein, when a determination result of the shielding determination unit is affirmative, the shielding determination unit informs the image processing module to suspend processing the sub image data corresponding to the lower-layer region.