NL128102ac23_02 NEC, NL128102ac23_02 Datasheet - Page 30

• Manufacturer Part Number: NL128102ac23_02
• Description: TFT COLOR LCD MODULE
• Manufacturer: NEC

OUTSIDE CONTROL FOR LUMINANCE
value of input signal for BRTP.
30
Frequency
OFF section
Pulse-width
Input voltage
Outside control is valid, when PWSEL = “L” and input signal for BRTP. Luminance can be controlled by the duty
Duty = 100%: luminance is maximum.
Duty = 20% : luminance is minimum.
Timing for BRTP
Regarding setup for frequency, please refer to the below method.
Setup frequency = Vsync frequency
Please adopt the frequency evaluating the display quality, because the display will be disturbed depending on
the frequency.
Parameters
BRTP
ViH
50 %
ViL
L/tPW
tLPW
tHPW/tPW
ViL
ViH
Symbols
(n + 0.25) or (n + 0.75)
Data Sheet EN0491EJ1V0DS00
Min.
185
4.5
20
0
tHPW
Typ.
tPW
Max.
5.25
340
100
0.6
50
tLPW
Unit
Hz
Ms
%
V
V
When tLPW is more than
50ms, the lamps are turned off.
At max. luminance (100%)
NL128102AC23-02
Remark