Patent ID: 8179407

Claim:
A method of driving a display apparatus comprising a light source module divided into a plurality of individually controlled light-emitting blocks to thereby provide individually controlled blocks of illuminating light to a display panel, the display apparatus further comprising a local dimming driving part configured for driving the light-emitting blocks, and a timing controller configured for controlling a driving timing of the display panel and of the local dimming driving part, the method comprising: transmitting a luminance pulse signal in combination with a synchronization signal to the local dimming driving part, the luminance pulse signal having embedded therein representative grayscale values representative of luminances of respective image data portions corresponding to the respective light-emitting blocks, and the synchronization signal being indicative of a temporal start position of the transmitted representative grayscale values, the synchronization signal being transmitted to the local dimming driving part along with the representative grayscale values; and driving the light-emitting blocks using the representative grayscale values obtained from the luminance pulse that has been transmitted to the local dimming driving part along with the synchronization signal.