BU97941FV Datasheet, PDF (13/25 Pages) Rohm – Multifunction LCD Segment Driver

BU97941FV MAX 104 segments (SEG26×COM4)
Datasheet
●Liquid crystal Drive Waveform
1/4Duty
Line inversion
SEGn SEGn+1SEGn+2SEGn+3
COM0 stateA
COM1 stateB
COM2
COM3
Vreg
COM0
VSS
Vreg
COM1
VSS
Vreg
COM2
VSS
Vreg
COM3
VSS
Vreg
SEGn
VSS
Vreg
SEGn+1
VSS
Vreg
SEGn+2
VSS
Vreg
SEGn+3
VSS
Vreg
1frame
stateA
(COM0-SEGn)
Frame inversion
SEGn SEGn+1SEGn+2SEGn+3
COM0 stateA
COM1 stateB
COM2
COM3
COM0
COM1
COM2
COM3
SEGn
SEGn+1
SEGn+2
SEGn+3
Vreg
VSS
Vreg
VSS
Vreg
VSS
Vreg
VSS
Vreg
VSS
Vreg
VSS
Vreg
VSS
Vreg
VSS
Vreg
1frame
stateA
(COM0-SEGn)
-Vreg
Vreg
stateB
(COM1-SEGn)
-Vreg
Vreg
stateB
(COM1-SEGn)
-Vreg
Figure 9. LCD Drive Waveform during Line inversion
-Vreg
Figure 10.LCD Drive Waveform during Frame inversion
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TSZ02201-0A0A2D300080-1-2
1.Jun.2012 Rev.001