Patent ID: 8773412

Claim:
An overdrive apparatus, for respectively providing overdrive tables corresponding to a plurality of regions of an image frame, the apparatus comprising: an indication unit, for providing an indication signal corresponding to a scan line of the image frame; a first memory; a second memory; an access circuit, for reading a first overdrive table from the first memory and loading a second overdrive table to the second memory according to the indication signal, wherein the first overdrive table and the second overdrive table respectively correspond to a first region and a second region among the regions; a third memory, wherein the access circuit reads the first overdrive table from the first memory, reads a fourth overdrive table from the third memory, and loads the second overdrive table to the second memory according to the indication signal; and a calculation circuit, for receiving the first overdrive table and the fourth overdrive table read by the access circuit, and accordingly providing a corresponding driving value to each of a plurality of display units of the first region; wherein the calculation circuit determines an interpolation weight according to the indication signal, and provides the corresponding driving value by performing interpolation calculation according to the interpolation weight, the first overdrive table and the fourth overdrive table read, wherein the interpolation weight is a value between 0 and 1.