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1/2 bias and triplex multiplexing - LCD_SEG0-LCD_COM1
? DC voltage = 0 (over one frame)
? V RMS = 0.7 V LCD_OUT
? The LCD display pixel that is connected to LCD_SEG0 and LCD_COM1 will be ON with this waveform
Figure 29.23. LCD 1/2 Bias and Triplex Multiplexing - LCD_SEG0-LCD_COM1
V LC0 (V LCD )
V LC1 (1/2V LCD )
V LC3 (V SS )
-V LC1 (1/2V LCD )
-V LC0 (V LCD )
Fram e Start
Fram e End
1/2 bias and triplex multiplexing - LCD_SEG0-LCD_COM2
? DC voltage = 0 (over one frame)
? V RMS = 0.4 × V LCD_OUT
? The LCD display pixel that is connected to LCD_SEG0 and LCD_COM2 will be OFF with this waveform
Figure 29.24. LCD 1/2 Bias and Triplex Multiplexing - LCD_SEG0-LCD_COM2
V LC0 (V LCD )
V LC1 (1/2V LCD )
V LC3 (V SS )
-V LC1 (1/2V LCD )
-V LC0 (V LCD )
Fram e Start
Fram e End
29.3.3.5 Waveforms with 1/3 Bias and Triplex Multiplexing
In this mode, each frame is divided into 6 periods. LCD_COM[2:0] lines can be multiplexed with all
segment lines. Figures show 1/3 bias and triplex multiplexing (waveforms show two frames).
Figure 29.25. LCD 1/3 Bias and Triplex Multiplexing - LCD_COM0
V LC0 (V LCD )
V LC1 (2/3V LCD )
V LC2 (1/3V LCD )
V LC3 (V SS )
Fram e Start
Fram e End
Figure 29.26. LCD 1/3 Bias and Triplex Multiplexing - LCD_COM1
V LC0 (V LCD )
V LC1 (2/3V LCD )
V LC2 (1/3V LCD )
V LC3 (V SS )
Fram e Start
Fram e End
2011-04-12 - d0001_Rev1.10
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