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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： | 規范批準 |
| 文件頁數： | 7/28頁 |
| 文件大小： | 732K |
| 代理商： | LC171W03-A4 |
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Product Specification
7 / 28
LC171W03
Liquid Crystal Display
Ver. 0.0
Jan.10, 2002
Table 2_2. ELECTRICAL CHARACTERISTICS
Note : The design of the inverter must have specifications for the lamp in LCD Assembly
.
The performance of the Lamp in LCM, for example life time 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 you instrument.
Do not attach a conducting tape to lamp connecting wire.
If the lamp wire attach to a conducting tape, TFT-LCD Module has a low luminance and the inverter
has abnormal action.Because leakage current is occurred between lamp wire and conducting tape.
1. Specified values are for a single lamp.
2. Operating voltage is measured at 25
±
2
°
C. The variance of the voltage is
±
10%.
3. The voltage above V
S
should be applied to the lamps for more than 1 second for start-up.
(Inverter open voltage must be more than lamp starting voltage.)
Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.
4. Lamp frequency may produce interface with horizontal synchronous frequency and as a result this may
cause beat on the display. Therefore lamp frequency shall be as away possible from the horizontal
synchronous frequency and from its harmonics in order to prevent interference.
5. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.
T
S
is the time required for the brightness of the center of the lamp to be not less than 95%.
6. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (P
BL
= V
BL
x I
BL
x N
Lamp
)
7. The life is determined as the time at which brightness of the lamp is 50% compared to that of initial
value at the typical lamp current on condition of continuous operating at 25
±
2
°
C.
6
Watt
31.10
28.20
P
BL
Power Consumption
1, 5
Min
3
Ts
Discharge Stabilization Time
at 0
°
C
at 25
°
C
V
RMS
1,460
4
kHz
60
50
40
f
BL
Operating Frequency
1, 3
Vs
Established Starting Voltage
V
RMS
1,130
1, 2
V
RMS
mA
RMS
770(3mA)
670(7mA)
660(7.5mA)
V
BL
Operating Voltage
1
7.5
7.0
3.0
I
BL
Operating Current
LAMP :
1, 7
Hrs
50,000
Life Time
Parameter
Symbol
Max
Typ
Min
Notes
Unit
Values
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