Patent ID: 7629956

Claim:
An apparatus for driving an image display device comprising: a display panel including an image display unit for displaying images, a plurality of data driver integrated circuits supplying image signals to the image display unit; and a timing controller converting externally supplied i bit digital source data (i is a positive number) to a plurality of voltage levels to supply the converted voltage levels to the respective data driver integrated circuits and controlling the data driver integrated circuits, wherein the timing controller compresses the i bit digital source data for the unit of at least 2 bits and converts the compressed data to the plurality of voltage levels to supply the converted voltage levels to the data driver integrated circuits, wherein each of the data driver integrated circuits includes: an analog-to-digital converter converting the voltage levels to the digital data for the unit of at least 2 bits; a data restorer restoring the digital data for the unit of at least 2 bits from the analog-to-digital converter to i bit digital data signals; a shift register generating sampling signals; a latch latching the digital data signals from the data restorer depending on the sampling signals; and a digital-to-analog converter converting the digital data signals from the latch to the image signals to supply the converted signals to the display panel.