Patent ID: 9640146
Date: 2017-05-02
CPC Classifications: G09G

Claim:
1. A self refresh method with dithering, comprising: generating a plurality of original frames; performing a first dithering process upon the plurality of original frames to generate a plurality of dithering frames to a timing controller, the plurality of original frames each having a first bit width, the plurality of dithering frames each having a second bit width narrower than the first bit width; checking if the plurality of original frames is unaltered; and when it is detected that the plurality of original frames is unaltered, requesting the timing controller to enter a self refresh mode, and stopping transmission of dithering frames after transmitting a specific dithering frame and dithering information associated with the specific dithering frame to the timing controller for further dithering processing so that the timing controller under the self refresh mode performs a second dithering process to generate a plurality of self refreshed frames by referring to the specific dithering frame and the dithering information to generate the self refreshed frames; the dithering information and the specific dithering frame having the second bit width are used to generate a plurality of frames, which have the first bit width and then are processed by the second dithering process of the timing controller to generate the self refreshed frames at the second bit width narrower than the first bit width of each original frame when the plurality of original frames are unaltered.