SSD1730 Solomon, SSD1730 Datasheet - Page 17

• Manufacturer Part Number: SSD1730
• Description: SSD1730 MLA Power Chip CMOS
• Manufacturer: Solomon

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Contrast Control Circuit
The display contrast level –V1 is controlled by an external contrast adjustment circuit. Figure 9 shows the typical
connection of contrast control circuit.
Figure 9 - Typical connection of contrast control circuit
+V1 Voltage Generator
This circuit generates voltage level +V1 which is the positive power supply to row driver. Signal AB and XBB are the clock for
this generator circuit. Figure 10 shows the typical connection of the +V1 voltage generator.
Figure 10 - Typical connection of +V1 voltage generator
15
SSD1730
-V3B
VEE
XBB
-V1
C7N
VL
AB
Rev 2.0
04/2002
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510k
500k
470pF
1.0pF
2SA
3.3M
2SJ
2SJ
VL
-V1
1.0uF
VH
+V1
SOLOMON
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