Patent ID: 8054244

Claim:
A method for driving multi-segment display device, comprising: supplying an input mode signal and a clock signal; activating a switch mode unit to switch modes of a display unit according to the input mode signal; switching the mode of the display device to a display activation mode when the input mode signal is at a low level of voltage; and switching the mode of the display device to a display deactivation mode when the input mode signal is at a high level of voltage, wherein the display activation mode and the display deactivation mode respectively correspond to various combinations of segment voltage waveforms, background voltage waveforms, and common voltage waveforms, and the background voltage waveforms have a same phase as the common voltage waveforms, wherein the segment voltage waveform of the display activation mode is a continuous square wave which swings between a first voltage and a second voltage, and the segment voltage waveform of the display deactivation mode is a continuous square wave which swings between a third voltage and a fourth voltage such that the segment voltage waveforms of the display activation mode and the display deactivation mode have different peak values, and such that the segment voltage waveforms of the display activation mode and the display deactivation mode have different valley values.