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| 型號： | LC171W03-A4 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | SPECIFICATION FOR APPROVAL |
| 中文描述： | 規(guī)范批準(zhǔn) |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 732K |
| 代理商： | LC171W03-A4 |
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Product Specification
8 / 28
LC171W03
Liquid Crystal Display
Ver. 0.0
Jan.10, 2002
I
p
I
-p
* Asymmetry rate:
| I
p
– I
–p
| / I
rms
x 100%
* Distortion rate
I
p
(or I
–p
) / I
rms
8. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
symmetrical current waveform (Unsymmetrical ratio is less than 10%). Please do not use the inverter
which has unsymmetrical voltage and unsymmetrical 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, are following.
It shall help increase the lamp lifetime and reduce leakage current.
a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within
√
2
±
10%.
* Inverter output waveform had better be more similar to ideal sine wave.
9. The inverter which is combined with this LCM, is highly recommended to connect coupling(ballast)
condenser at the high voltage output side. When you use the inverter which has not coupling(ballast)
condenser, it may cause abnormal lamp lighting because of biased mercury as time goes.
10.In case of edgy type back light with over 4 parallel lamps, input current and voltage wave form should
be synchronized
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