參數(shù)資料
型號: UPD161401P
廠商: NEC Corp.
英文描述: CABLE ASSEMBLY; N MALE TO TNC MALE; 50 OHM, RG214/U COAX, DOUBLE SHIELDED; 12" CABLE LENGTH
中文描述: 256色,1/80-DUTY LCD控制器/驅(qū)動器,片內(nèi)RAM
文件頁數(shù): 48/124頁
文件大?。?/td> 647K
代理商: UPD161401P
Data Sheet S15726EJ2V0DS
48
μ
PD161401
5.7 Driving LCD
The
μ
PD161401 has a full-dot driver. This full-dot driver can modulate grayscale, depending on the setting of the
pulse widths. In this driving mode, eight R/G output grayscales and four B output grayscales are selected from a 17-
stage grayscale palette, and the selected grayscales are registered to the output grayscale palette of the IC. For details,
refer to
Table 5
23
Example of Pulse Width Modulation Output.
5.7.1
The pulse width modulation function of the
μ
PD161401 divides the segment pulse width of the signal for normal LCD
display (16), and outputs the divided pulse width in accordance with the output timing of dots at the ratio of the
grayscale palette selected by a command.
Full-dot pulse modulation
Figure 5
25. Full-Dot Pulse Width Modulation
2
Expanded view of part
16/16
8/16
1/16
1
3
V
LCD
V
LC1
V
LC2
V
LCD
V
LC1
V
LC2
V
LC3
V
LC4
V
SS
V
LCD
V
LC1
V
LC2
V
LC3
V
LC4
V
SS
SEG
1
COM
1
1
2
3
4
5
6
7
8
1 Frame
78 79 80 1
2
3
4
5
6
7
8
78 79 80
Caution The width of the common output pulse is not modulated.
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