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(3)
Output waveforms of common and segment signals
The voltages listed in Table 3-5 are output as common and segment signals.
When both common and segment signals are at the select voltage, a display on-voltage of ±V
The other combinations of the signals correspond to the display off-voltage.
Segment Signal
Common Signal
V
/LV
LC0
SS
Segment Signal
Common Signal
Select signal level
V
Deselect signal level
V
Segment Signal
Common Signal
Select signal level
V
Deselect signal level
V
30
CHAPTER 3 LCD CONTROLLER/DRIVER
Table 3-5. LCD Drive Voltage
(a) Static display mode
Select Signal Level
–V
/+V
LCD
LCD
(b) 1/2 bias method
Select Signal Level
/LV
–V
/+V
LC0
SS
LCD
LCD
1
1
= V
–
V
/+
V
LC1
LC2
LCD
2
2
(c) 1/3 bias method
Select Signal Level
/LV
–V
/+V
LC0
SS
LCD
LCD
1
1
/V
–
V
/+
V
LC2
LC1
LCD
3
3
User's Manual U18438EJ2V0UD
LV
/V
SS
LC0
0 V/0 V
LV
/V
SS
LC0
0 V/0 V
+
LCD
LV
/V
SS
LC0
–
–
LCD
is obtained.
LCD
Deselect Signal Level
V
/LV
LC0
SS
Deselect Signal Level
V
/LV
LC0
SS
1
1
V
/–
V
LCD
LCD
2
2
Deselect Signal Level
V
/V
LC1
LC2
1
1
V
/+
V
LCD
LCD
3
3
1
1
V
/+
V
LCD
LCD
3
3
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