SSD1789A Solomon Systech, SSD1789A Datasheet - Page 45

• Manufacturer Part Number: SSD1789A
• Description: CSTN LCD Driver
• Manufacturer: Solomon Systech

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Figure 13 - Contrast Control Voltage Range Curve (Vdd=Vci=2.7V, TC0)
9.11 Set Increment/Decrement of the contrast (D6/D7 Hex)
This command can increase the contrast step by +1 (D6 Hex) and decrease the contrast step by –1 (D7 Hex).
It is the most convenient way to change the contrast of the display by programming.
9.12 Set Normal/Inverse Display (A6/A7 Hex)
This command turns the display to be either normal (A6 Hex) or inverse (A7). In normal display mode, a RAM data of 1
indicates an illumination on the corresponding pixel in the normal white panel. In inverse display mode, a RAM data of 0
will turn on the pixel. It should be noted that the icon line is not affected. The icon line is not inversed by this command.
Example:
For a normal white display panel (Set Normal Display: A6Hex):
For a normal black display panel (Set Normal Display: A7Hex):
SSD1789A Series Rev 1.0
R
R
0
F
0
F
F
0
F
0
F
F
RAM Content
RAM Content
18
16
14
12
10
8
6
4
2
0
G
G
0
F
F
0
F
0
F
F
0
F
0
B
0
F
F
F
0
B
0
F
F
F
0
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10
Contrast Control Voltage Range, Vdd=Vci=2.7V, TC0
Green
Green
White
White
Black
Black
Color
Color
Blue
Blue
Red
Red
P 45/69 Jul 2004
20
Contrast
30
40
50
60
Solomon Systech
IR0
IR1
IR2
IR3
IR4
IR5
IR6
IR7
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