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Figure 3-10 shows the common signal waveforms, and Figure 3-11 shows the voltages and phases of the common
and segment signals.
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Figure 3-10. Common Signal Waveforms
COMn
(Static display)
T
= T
F
T: One LCD clock period
COMn
(Two-time slot mode)
= 2 × T
T
F
COMn
(Three-time slot mode)
= 3 × T
T
F
T: One LCD clock period
COMn
(Three-time slot mode)
= 3 × T
T
F
COMn
(Four-time slot mode)
T
F
T: One LCD clock period
CHAPTER 3 LCD CONTROLLER/DRIVER
(a) Static display mode
T
: Frame frequency
F
(b) 1/2 bias method
T
: Frame frequency
F
(c) 1/3 bias method
= 4 × T
T
: Frame frequency
F
User's Manual U18438EJ2V0UD
V
LC0
V
LCD
LV
SS
V
LC0
V
V
LC2
LCD
LV
SS
V
LC0
V
V
LC2
LCD
LV
SS
V
LC0
V
LC1
V
LCD
V
LC2
LV
SS
V
LC0
V
LC1
V
LCD
V
LC2
LV
SS
31
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