T370HW01V0 AU_OPTRONICS, T370HW01V0 Datasheet - Page 7

• Manufacturer Part Number: T370HW01V0
• Description: COLOR TFT LCD MODULE
• Manufacturer: AU_OPTRONICS

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©Copyright AU Optronics, Inc.
March, 2004 All Rights Reserved.
No Reproduction and Redistribution Allowed
Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to conducting tape,
TFT-LCD Module have a low luminance and the inverter has abnormal action because leakage current
occurs between lamp wire and conducting tape.
The relative humidity must not exceed 80% non-condensing at temperatures of 40℃ or less. At
temperatures greater than 40℃, the wet bulb temperature must not exceed 39℃. When operate at low
temperatures, the brightness of CCFL will drop and the lifetime of CCFL will be reduced.
The output of the inverter must have symmetrical (negative and positive) voltage waveform and
symmetrical current waveform (Asymmetry ratio is less than 10%). Please do not use the inverter that has
asymmetrical voltage and asymmetrical current and spike wave. Requirements for a system inverter design
which is intended to have a better display performance, a better power efficiency and a more reliable lamp.
It shall help increase the lamp lifetime and reduce its leakage current.
Note:
The design of the inverter must have specifications for the lamp in LCD Assembly. The performance of the
Lamp in LCM, for example lifetime or brightness, is extremely influenced by the characteristics of the
DC-AC Inverter. So all the parameters of an inverter should be carefully designed so as not to produce too
much leakage current from high-voltage output of the inverter. When you design or order the inverter,
please make sure unwanted lighting caused by the mismatch of the lamp and the inverter (no lighting,
flicker, etc) never occurs. When you confirm it, the LCD Assembly should be operated in the same
condition as installed in your instrument.
a.
b.
c.
3.
The asymmetry rate of the inverter current and voltage waveform should be 10% below;
The distortion rate of the current and voltage waveform should be within √2±10%;
The ideal sine current and voltage waveform shall be symmetric in positive and negative
polarities.
The life is determined as the time at which luminance of the lamp is 50% compared to that of
initial value at the typical lamp current on condition of continuous operating at 25 ±2℃
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