Lcd Display Example (1/4 Duty) - Panasonic MN101L Series User Manual

17.4.7

LCD Display Example (1/4 duty)

1/4 duty
Segment Latch
...........
0x03EBA 0x03E93 0x03E92
0 1
1 1
1 0
1 0
...........
SEG42
SEG3 SEG2
"A" electrode
"B" electrode
: ON
LCDPANEL
: OFF
COM = S COM = N
SEG = S SEG = S
LCD clock
Data
"1"
V
LC1
COM
V
LC2
V
LC3
V
SS
V
LC1
SEG
V
LC2
V
LC3
V
SS
V
LCD
COM-SEG
1/3V
LCD
0
-1/3V
LCD
-V
LCD
ON OFF
S: selected voltage N: non-selected voltage V
0x03E91 0x03E90
bit3
COM3
0 1
bit2
COM2
1 1
bit1
COM1
0 1
bit0
1 0 COM0
SEG1 SEG0
LCD ON
LCD OFF
COM = S COM = N
SEG = N SEG = N
Undefined
"0" Undefined
OFF OFF OFF
: LCD driving voltage
LCD
Chapter 17
LCD Display Examples XVII - 35
LCD