B121EW03-V8 AUO, B121EW03-V8 Datasheet - Page 15

• Manufacturer Part Number: B121EW03-V8
• Description: LCD Module
• Manufacturer: AUO

5.2 Backlight Unit
CCFL Parameter guideline for CCFL Inverter selection (Ref. Remark 1)
To optimun TFT LCD performance, the LAMP inverter PWM Frequesncy define as:210 +/-5 Hz
Remark 1: Typ are AUO recommended Design Points.
B121EW03 V8 Version 1.0
Note 1: It should be employed the inverter which has “Duty Dimming”, if ICCFL is less than 4mA.
CCFL current(I
CCFL Frequency(F
CCFL startup Voltage(Vs)
CCFL startup Voltage(Vs)
CCFL Voltage (Reference)
(V
CCFL Power consumption
(P
CCFL Life-Time
CCFL
CCFL
)
)
1-1 All of characteristics listed are measured under the condition using the AUO Test inverter.
1-2 In case of using an inverter other than listed, it is recommended to check the inverter carefully.
1-3 In designing an inverter, it is suggested to check safety circuit very carefully. Impedance of CCFL, for
1-4 Generally, CCFL has some amount of delay time after applying starting voltage. It is recommended to
1-5 CCFL discharge frequency must be carefully chosen so as not to produce interfering noise stripes on
1-6 Reducing CCFL current increases CCFL discharge voltage and generally increases CCFL discharge
Parameter
Sometimes, interfering noise stripes appear on the screen, and substandard luminance or flicker at low
power may happen.
instance, becomes more than 1 [M ohm] when CCFL is damaged.
keep on applying starting voltage for 1 [Sec] until discharge.
the screen.
frequency. 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.
CCFL
)
CCFL
)
AU OPTRONICS CORPORATION
Product Specification
12,000
Min
522
2.0
45
-
Typ
580
6.0
3.5
62
-
Max
1750
1460
638
7.0
3.7
70
-
[Volt] rms
[Volt] rms
[Volt] rms
[mA] rms
[Watt]
Units
[KHz]
Hour
(Ta=25
Note 1
(Ta=25
Note 2,3
(Ta= 0
Note 4
(Ta= 25
Note 4
(Ta=25 )
Note 5
(Ta=25 )
Note 5
(Ta=25 )
Note 7
Condition
℃
℃
℃
℃
℃
℃
℃
)
)
)
)
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