Patent ID: 8217921

Claim:
A flat panel display, comprising: a controller comprising a processing device that processes a digital signal corresponding to one frame to generate n number of digital sub-frame signals; and a driver that receives the digital sub-frame signals from the controller to generate n number of analog sub-frame signals and supplies the analog sub-frame signals to a display, the display receiving the analog sub-frame signals to embody images, wherein an average of brightness corresponding to the n number of digital sub-frame signals is substantially equal to brightness of the digital signal corresponding to one frame, and the number of bits of the digital sub-frame signals is less than the number of bits of the digital signal, and wherein the controller comprises a gamma correction device that corrects the digital signal corresponding to one frame by referring to a lookup table and increasing the number of bits of the digital signal, and wherein the digital signal corresponding to the one frame corrected through the gamma correction device is 7 bits, and the processing device generates four 5 bit digital sub-frame signals by processing the 7 bit digital signal, wherein any three of the four 5 bit digital sub-frame signals are generated by deleting lower 2 bits of the 7 bit digital signal, and a magnitude of a remaining one of the four 5 bit digital sub-frame signals is greater than a magnitude of the any three of the digital sub-frame signals.