Acer G185H - Page 36

SPEC NO.
M T1 8 5GW 0 1 V. 0
PAGE
13/23
d. Display Position
D(1, 1) D(2, 1) …… D(683, 1) …… D(1365, 1) D(1366, 1)
D(1, 2) D(2, 2) …… D(683, 2) …… D(1365, 2) D(1366, 2)
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D(1, 384) D(2, 384) …… D(683, 384) …… D(1365, 384) D(1366, 384)
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D(1, 767) D(2, 767) …… D(683, 767) …… D(1365, 767) D(1366, 767)
D(1, 768) D(2, 768) …… D(683, 768) …… D(1365, 768) D(1366, 768)
e. Backlight driving conditions
Parameter Symbol Min. Typ. Max. Unit Remark Remark
Lamp voltage VL 630 700 770 Vrms I=7.5mA Note 1, 2
Lamp operation current IL 2 7.5 8 mArms Note 3
1300 - - T = 25°C Note 4,5,6,7
Lamp starting voltage VLstart
1700 - -
Vrms
T = 0°C Note 4,5,6,7
Frequency F 40 - 60 KHZ Note 7
Lamp life time 50000 - - Hr Note 8
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: Specified values are for a single lamp.
Note 2: Operating voltage is measured at the condition of Ta = 25±2°C.
Note 3: The degree of unbalance: less than 10%
The ratio of wave height: less than 10%2 ±
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.
Ip
I-p
Ip: high side peak
I-p: low side peak