A monolithic low-power high-voltage driver for bistable LCDs

A complete low-power high-voltage driver for a 80x 104 passive-matrix bistable LCD is integrated in a 0.7 /spl mu/m CMOS smart-power technology. It features 100 V driving capability on all row and column outputs and comprises all necessary digitally programmable high-voltage generators and multiplexers to synthesize the required complex high-voltage waveforms from a 3 V battery. An original level-shifter design for the high-voltage multiplexers yields an extremely low internal power consumption below 10 mW for the entire driver chip.