Datasheet
RL78/L12 CHAPTER 14 LCD CONTROLLER/DRIVER
R01UH0330EJ0200 Rev.2.00 643
Dec 13, 2013
Figure 14-26. Voltages and Phases of Common and Segment Signals (3/3)
(e) 1/4 bias method (waveform A)
Select Deselect
Common signal
Segment signal
V
L4
V
SS
V
LCD
V
L4
V
SS
V
LCD
V
L2
V
L1
V
L3
V
L1
V
L3
V
L3
T
T
T: One LCD clock period
(f) 1/4 bias method (waveform B)
Select Deselect
Common signal
Segment signal
VL4
VSS
VLCD
VL4
VSS
VLCD
VL2
VL2
VL3
VL3
T/2 T/2 T/2 T/2
VL1
VL1
T: One LCD clock period