36.6.2.3 1/3 Duty and 1/3 Bias

1/3 bias is recommended for an LCD with three common terminals (1/3 duty). In the waveform shown in the following figure, SEG0–COM0 is the voltage across a segment that is on and SEG0–COM1 is the voltage across a segment that is off.

Figure 36-5. Driving an LCD with Three Common Terminals