Abstract text

A driving system is used in an active matrix display device to adjust the data line signal voltage level based on the voltage drop in the power supply so as to maintain the voltage potential between the gate terminal and the source terminal of a driving TFT to a certain level. In particular, when the power supply is a battery and the voltage provided by the battery decreases with time, the brightness of display device would decrease accordingly. The driver system comprises a voltage monitoring device to monitoring the battery voltage drop, a data driver to provide the data line signal voltage level to driving TFT, and a correction module to adjust the data line signal voltage level based on the voltage drop according to the gamma operable range of the display device.