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18 LCD DRIVER (LCD24A)
1 frame
0
1
LFRO
COM0
COM1
COM2
COM3
SEGx
1 frame
LFRO
COM0
SEGx
18-12
2
3
0
Figure 18.5.5.3 1/4 Duty Drive Waveform (1/3 bias)
0
Figure 18.5.5.4 Static Drive Waveform (1/3 bias)
Seiko Epson Corporation
1
2
3
0
S1C17W22/W23 TECHNICAL MANUAL
V
DD
V
SS
V
(= V
)
C3
C4
LCD
V
C2
display status
V
C1
V
COM0
SS
COM1
V
(= V
)
C3
C4
COM2
V
C2
COM3
V
C1
V
SS
SEGx
V
(= V
)
C3
C4
Off
V
C2
On
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
V
DD
LCD
V
SS
display status
V
(= V
)
C3
C4
COM0
V
C2
V
C1
SEGx
V
SS
Off
V
(= V
)
C3
C4
On
V
C2
V
C1
V
SS
V
(= V
)
C3
C4
V
C2
V
C1
V
SS
(Rev. 1.3)
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