SOURCE DRIVER OF DISPLAY PANEL DRIVING DEVICE

摘要

A source driver of a display panel driving device is provided to enlarge an output range of a source driver by selectively using one of first and second source drivers with different operation characteristics. A source driver of a display panel driving device generates a source driving voltage corresponding to a grayness to be displayed, and applies the source driving voltage to a driving TFT(Thin Film Transistor) in an LCD(Liquid Crystal Display) device. A first source driver(302) generates a first source driving voltage corresponding to a first image data group from image data corresponding to the grayness to be displayed on the LCD device. A second source driver(304) generates a second source driving voltage corresponding to a second image data group containing the image data except for the first image data group. The first and second source driving voltages are selectively applied on the driving TFT according to the image data.