Patent ID: 8451257

Claim:
A controller board comprising: a memory which stores previous frame image data; and a timing controller which outputs driving image data based on current frame image data supplied from an external source and the previous frame image data, the timing controller dispersing a frequency band of the current frame image data within a reference frequency range to generate dispersed current frame image data and transmitting the dispersed current frame image data to the memory, wherein the timing controller comprises: a frequency expanding part which generates the dispersed current frame image data by dispersing the frequency band of the current frame image data supplied from the external source within the reference frequency range; and an input buffer which receives the previous frame image data from the memory and outputs the previous frame image data; an output buffer which receives the dispersed current frame image data from the frequency expanding part and outputs the dispersed current frame image data to the memory; and an image signal processing part which receives the dispersed current frame image data and the previous frame image data to output the driving image data based on the current frame image data and the previous frame image data, wherein the image signal processing part receives the dispersed current frame image data from the frequency expanding part and the previous frame image data from the input buffer.