參數(shù)資料
型號: LP104S5
廠商: NXP Semiconductors N.V.
英文描述: LIQUID CRYSTAL DISPLAY
中文描述: 液晶顯示器
文件頁數(shù): 6/24頁
文件大?。?/td> 534K
代理商: LP104S5
LP104S 5-A2VT
Liquid Crystal Display
Product Specification
Ver 0.0 Oct.06. 2000 Page
6
/
23
3. Electrical Specifications
3-1. Electrical Characteristics
The LP104S5-A2VT requires two power inputs. One is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. The second input which powers the CCFL, is typically generated by
an inverter. The inverter is an external unit to the LCD.
Table 2 ELECTRICAL CHARACTERISTICS:
Parameter
Symbol
Module
Power Supply Input Voltage
Power Supply Input Current
Power Consumption
Rush Current
I
RUSH
Lamp
Operating Voltage
Operating Current
Established Starting Voltage at 25
°
C
0
°
C
Discharge Stabilization Time
Operating Frequency
Power Consumption
Life Time
Notes:
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 your instrument.
1. The specified current and power consumption are under the Vcc = 3.3V , 25
°
C, fv = 60Hz
condition
whereas mosaic pattern is displayed.
2. The duration of rush current is about 20ms.
3. The variance of the voltage is
±
10%.
4. The voltage above V
s
should be applied to the lamps for more than 1second for start-up.
Otherwise,the lamps may not be turned on.
5. 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. Lamp frequency may produce interference with horizontal synchronous frequency
and
as a result this may cause beat on the display.
Therefore lamp frequency shall be as away as possible from the horizontal synchronous
frequency
and from its harmonics in order to prevent interference.
6. 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%.
Values
Typ.
3.3
290
0.96
1.0
500(6mA)
6.0
-
-
60
3.0
Units
Vdc
A
W
A
V
RMS
mA
V
RMS
V
RMS
min
kHz
Watts
Hours
Notes
1
1
3
4
5
5
7
6
8
9
Min.
3.0
-
-
-
Max.
3.6
360
1.2
1.5
640(3mA)
7
845
1015
3
80
3.3
-
V
CC
I
CC
P
c
V
BL
I
BL
Ts
f
BL
P
BL
475(7mA)
3.0
-
-
45
-
20,000
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