BU91R63CH-M3BW Datasheet, PDF (23/37 Pages) Rohm – Low Duty LCD Segment Driver

BU91R63CH-M3BW Max 176 segments (SEG44 x COM4)
(1/2duty, 1/2bias)
Line Inversion
Frame Inversion
SEGn SEGn+1 SEGn+2 SEGn+3
COM0 stateA
COM1 stateB
COM2, 3
Same waveform as COM0
SEGn SEGn+1 SEGn+2 SEGn+3
COM0 stateA
COM1 stateB
COM2, 3
Same waveform as COM0
V0
COM0
COM1
VSS
V0
VSS
V0
COM2
COM3
VSS
V0
VSS
V0
SEGn
VSS
V0
SEGn+1
VSS
V0
SEGn+2
VSS
V0
SEGn+3
VSS
stateA
(COM0-SEGn)
V0
1/2 (V0)
0
-1/2 (V0)
-V0
stateB
(COM1-SEGn)
V0
1/2 (V0)
0
-1/2 (V0)
-V0
1frame
Figure 23. LCD Waveform in Line Inversion
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TSZ22111・15・001
V0
COM0
COM1
VSS
V0
COM2
COM3
VSS
V0
VSS
V0
VSS
V0
SEGn
VSS
V0
SEGn+1
VSS
V0
SEGn+2
VSS
V0
SEGn+3
VSS
stateA
(COM0-SEGn)
V0
1/2 (V0)
0
-1/2 (V0)
-V0
stateB
(COM1-SEGn)
V0
1/2 (V0)
0
-1/2 (V0)
-V0
1frame
Figure 24. LCD Waveform in Frame Inversion
23/33
TSZ02201-0P4P0D301380-1-2
10 Feb. 2016 Rev.001