7. COMMAND
S1D15722D01B000 Technical Manual (Rev.1.1)
EPSON
35
Relationship between density of gray level setting with the set gray scale pattern command and pallet is
shown below.
Density
Density of
gray level
Set register value with the set gray
scale pattern command
Pallet 0
Pallet 1
Level 1 (light)
01h
1 / 10 = 10%
1 / 6 = 17%
Level 2
02h
1 / 7 = 14%
1 / 5 = 20%
Level 3
03h
1 / 5 = 20%
1 / 4 = 25%
Level 4
04h
1 / 4 = 25%
1 / 3 = 33%
Level 5
05h
3 / 10 = 30%
2 / 5 = 40%
Level 6
06h
3 / 8 = 38%
3 / 7 = 43%
Level 7
07h
3 / 7 = 43%
2 / 4 = 50%
Level 8
08h
2 / 4 = 50%
4 / 7 = 57%
Level 9
09h
4 / 7 = 57%
3 / 5 = 60%
Level 10
0Ah
5 / 8 = 63%
2 / 3 = 67%
Level 11
0Bh
2 / 3 = 67%
5 / 7 = 71%
Level 12
0Ch
3 / 4 = 75%
3 / 4 = 75%
Level 13
0Dh
5 / 6 = 83%
4 / 5 = 80%
Level 14 (dark)
0Eh
9 / 10 = 90%
5 / 6 = 83%
(17) Set display lines
This command allows change of display lines. Setting the start point (block) displays in the desired location
on the panel (continuous COM pin in 4 lines).
Be sure to set both parameters continuously, because this command uses both parameters of the display lines
and start point (block) in a pair.
E R/
__
W
A0
___
RD
___
WR D7 D6 D5 D4 D3 D2 D1 D0
Command
0 1 0 0 1 1 0 1 1 0 1
Set
mode
1 1 0
*
*
P15 P14
P13
P12
P11
P10
Display lines
Set register
1 1 0
*
*
P25 P24
P23
P22
P21
P20
Set start point
Set register
Note: An asterisk (*) denotes invalid bit.
Set display line register
The number of display lines can be set from 4 to 184 in steps of 4 lines. Adjust the crystal liquid drive
voltage that attains optimal display contrast by adjusting to the change of the number of display lines.
Relationship between the register value with set register and the number of display lines is as follows:
P15
P14
P13
P12
P11
P10
Number of display lines
0 0 0 0 0 0
4
0 0 0 0 0 1
8
↓
↓
1 0 1 1 0 0
180
1 0 1 1 0 1
184
Note: After resetting by the
____
RES pin, the number is set to 184 lines.
Note: Register setting at (1, 0, 1, 1, 1, 0) or higher is not allowed.
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