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S3C9228/P9228 LCD CONTROLLER/DRIVER
13-7
1 Frame
FR
VDD
VSS
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM1 VLC2 (VLC3)
VLC4
VSS
VDD
VLC1
SEG0 VLC2 (VLC3)
VLC4
VSS
VDD
VLC1
COM2 VLC2 (VLC3)
VLC4
VSS
VDD
VLC1
COM0 VLC2 (VLC3)
VLC4
VSS
VDD
VLC1
SEG0-COM0
+ VDD
0V
+ 1/4VLCD
-VLCD
- 1/4VLCD
0 1 2 3 74 65 0 1 2 3 74 65
S
E
G
0
S
E
G
1
S
E
G
2
S
E
G
3
S
E
G
4
Figure 13-7. LCD Signal Waveforms (1/8 Duty, 1/4 Bias)