BU91520KV-M Datasheet, PDF (28/45 Pages) Rohm – Low Duty LCD Segment Driver

BU91520KV-M
3. Line Inversion 1/3-Duty 1/3-Bias Drive Scheme
COM1
fo[Hz]
COM2
COM3
LCD driver output when all LCD
segment correstpoding to COM1,
COM2,COM3, and COM4 are off
LCD driver output when only LCD segments
corresponding to COM1 are on.
LCD driver output when only LCD segments
corresponding to COM2 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM2 are on.
LCD driver output when only LCD segments
corresponding to COM3 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM3 are on.
LCD driver output when LCD segments
corresponding to COM2 and COM3 are on.
LCD driver output when all LCD segments
corresponding to COM1, COM2,
and COM3 are on.
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
VLCD
VLCD1
VLCD2
0V
Figure 22. LCD Waveform (1/3-Duty, 1/3-Bias, Line Inversion)^(Note18)
(Note18) COM4 function is same as COM1 at 1/3-Duty.
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TSZ02201-0P4P0D301340-1-2
22.Jan.2016 Rev.001