NEC PD78F9488 User Manual
Page 259
CHAPTER 13 LCD CONTROLLER/DRIVER
User’s Manual U15331EJ4V1UD
259
Figure 13-7. Common Signal Waveforms
COMn
(Three-time-slice mode)
T
F
= 3
×
T
V
LC0
V
SS
V
LCD
V
LC1
V
LC2
T
F
= 4
×
T
COMn
(Four-time-slice mode)
V
LC0
V
LCD
V
LC1
V
LC2
V
SS
T: One LCD clock period
T
F
: Frame frequency
Figure 13-8. Voltages and Phases of Common and Segment Signals
Select
Deselect
Common signal
Segment signal
V
LC0
V
SS
V
LCD
V
LC0
V
SS
V
LCD
T
T
V
LC2
V
LC2
V
LC1
V
LC1
T: One LCD clock period