23 lCD DRiVeR (lCD)
23-6
Seiko epson Corporation
S1C17624/604/622/602/621 TeChniCal Manual
0
1
2
3
0
1
2
3
LFRO
COM0
COM1
V
DD
V
SS
V
C3
V
C2
V
C1
V
SS
V
C3
V
C2
V
C1
V
SS
COM2
V
C3
V
C2
V
C1
V
SS
COM3
V
C3
V
C2
V
C1
V
SS
COM0
1
2
3
SEG
x
V
C3
V
C2
V
C1
V
SS
V
C3
V
C2
V
C1
V
SS
V
C3
V
C2
V
C1
V
SS
V
C3
V
C2
V
C1
V
SS
V
C3
V
C2
V
C1
V
SS
V
C3
V
C2
V
C1
V
SS
SEG
x
1 frame
Frame interrupt
Frame interrupt
LCD
display status
Off
On
4.2.2 1/4 Duty Drive Waveform
Figure 23.