Panel Specification
The back light unit is a direct type with 4 CCFTs ( Cold Cathode Fluorescent Tube )
The characteristics of two dual lamps are shown in the following tables.
Ta=25
2 C
Note (1) Specified values are for a single lamp.
Lamp current is measured with current meter for high frequency as shown below.
Refer to the following block diagram of the back light unit for more information.
Fig. Measurement point of Lamp Current
3.2 Back Light Unit
25
: 1,370
(6)
Vrms
0
: 1,550
-
-
Vs
Startup Voltage
1.5554
1.414
1.2726
Wdis
Distortion rate
(5)
%
10
-
-
Wasy
Asymmetry rate
Inverter
waveform
(4)
Hour
-
-
50,000
Hr
Operating Life Time
(3)
kHz
60
-
40
f
L
Lamp Frequency
Vrms
-
650
-
V
L
Lamp Voltage
(1)
mArms
7.0
6.5
3.0
I
L
Lamp Current
Note
Unit
Max.
Typ.
Min.
Symbol
Item