SSD1339U3 ETC1 [List of Unclassifed Manufacturers], SSD1339U3 Datasheet - Page 40

• Manufacturer Part Number: SSD1339U3
• Description: 132RGB x 132 with 2 smart Icon lines Dot Matrix OLED/PLED Segment/Common Driver with Controller
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Set Pre-charge voltage of Color A, B and C (BBh)
This command is used to set V
, V
and V
phase 2 voltage level for color A, B and C respectively.
PA
PB
PC
The command is valid in condition that these voltages are selected to generate internally by command
ADh. It can be programmed to set the pre-charge voltage reference to V
or V
. Voltage level
REF
COMH
increases linearly when set value increases.
Set V
(BEh)
COMH
This command sets the high voltage level of common pins, V
, when it is selected to generate
COMH
internally by command ADh. The level of V
is programmed with reference to V
. Voltage level
COMH
REF
increases linearly when set value increases.
Contrast Current for Color A, B, C (C1h)
This command is to set Contrast Current of each color A, B and C. The chip has three contrast control
circuits for color A, B and C. Each contrast circuit has 256 contrast steps from 00h to FFh. The segment
output current I
increases linearly with the contrast step, which results in brighter of the color. This
SEG
relation is shown in Figure 26.
In many situations, the output brightness of color A, B and C pixels are
different under the same segment current condition. The contrasts of color A, B and C are set such that
the brightness of each color are the same on the OLED panel
Jul 2005
P 40/59 Rev 1.1
Solomon Systech
SSD1339