SSD1339U3 ETC1 [List of Unclassifed Manufacturers], SSD1339U3 Datasheet - Page 26

• 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]

Controlling the current pulse widths from the segment driver in the current drive phase produces the gray
scale display. The gray scale table stores the corresponding pulse widths (PW0 ~ PW63) of the 64 gray
scale levels (GS0~GS63). The wider the pulse width, the brighter the pixel will be.
brightness of each pixel is defined in the graphic display data RAM in term of pulse width in gray scale
table.
This single gray scale table supports all the three colors A, B and C. The pulse widths are entered by
software commands.
In graphic display data RAM, each color occupies 6-bit length. So color A, B and C each has 64 gray
scale levels.
Figure 18 – Relation between graphic data RAM value and gray scale table entry for three colors
In 65k and 256 color modes, the length color data are less than 6 bits. They are expanded to 6-bit length
as shown in Figure 16 and Figure 17 respectively.
Gray Scale and Gray Scale Table
Solomon Systech
RAM data (6 bits)
Color A, B, C
60
61
62
63
0
1
2
3
4
:
:
:
Gray Scale
GS 60
GS 61
GS 62
GS 63
GS 0
GS 1
GS 2
GS 3
GS 4
:
:
:
Jul 2005
P 26/59 Rev 1.1
Therefore, the
SSD1339