Datasheet

RL78/L12 CHAPTER 14 LCD CONTROLLER/DRIVER
R01UH0330EJ0200 Rev.2.00 642
Dec 13, 2013
Figure 14-26. Voltages and Phases of Common and Segment Signals (2/3)
(c) 1/3 bias method (waveform A)
Select Deselect
Common signal
Segment signal
V
L4
V SS
V LCD
V L4
V SS
V LCD
TT
V
L1
V L1
V L2
V L2
T: One LCD clock period
(d) 1/3 bias method (waveform B)
Select Deselect
Common signal
Segment signal
VL4
VSS
VLCD
VL4
VSS
VLCD
VL1
VL1
VL2
VL2
T/2 T/2 T/2 T/2
T: One LCD clock period