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d. Display Position
D(1, 1)
D(1, 2)
. .
.
D(1, 450)
. .
.
D(1, 899)
D(1, 900)
e. Backlight driving conditions
Parameter
Lamp voltage
Lamp operation current
Lamp starting voltage
Frequency
Lamp life time
Note: The waveform of the voltage output of inverter must be area-symmetric and the design of the
inverter must have specifications for the modularized lamp. The performance of the Backlight,
such as lifetime or brightness, is greatly influenced by the characteristics of the DC-AC inverter
for the lamp. All the parameters of an inverter should be carefully designed to avoid producing
too much current leakage from high voltage output of the inverter. When designing or ordering
the inverter please make sure that a poor lighting caused by the mismatch of the Backlight and
the inverter (miss-lighting, flicker, etc.) never occurs. If the above situation is confirmed, the
module should be operated in the same manners when it is installed in your instrument.
Note 1: Lamp voltage is specified under
Note 2: The degree of unbalance: less than 10%
The ratio of wave height: less than
The degree of unbalance = |Ip-I-p| /Irms*100(%)
The ratio of wave height = Ip (or I-p)/Irms
Lamp should be completely turned on.
D(2, 1)
......
D(2, 2)
......
......
D(2, 450)
......
......
D(2, 899)
......
D(2, 900)
......
Symbol
Min.
VL
660
IL
2.0
1450
VLstart
1700
F
40
-
I
= 7.0mArms.
L
2 ±
SPEC NO.
PAGE
D(720, 1)
......
D(720, 2)
......
. .
......
.
D(720, 450)
......
. .
......
.
D(720, 899)
......
D(720, 900)
......
Typ.
Max.
730
800
7.0
7.5
-
-
-
-
-
60
50000
-
10%
Ip: high side peak
Ip
I-p
I-p: low side peak
M T 1 9 0 AW 0 2 V. Y
13/23
D(1439, 1)
D(1440, 1)
D(1439, 2)
D(1440, 2)
. .
.
D(1439, 450)
D(1440, 450)
. .
.
D(1439, 899)
D(1440, 899)
D(1439, 900)
D(1440, 900)
Unit
Remark
Remark
Vrms
I=7.0mA
mArms
T = 25°C Note 3,4,5,6
Vrms
T = 0°C
Note 3,4,5,6
KHZ
Hr
. .
.
. .
.
Note 1
Note 2
Note 6
Note 7
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