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參數(shù)資料
| 型號(hào)： | LD-17Y60 |
| 廠商： | Sharp Corporation |
| 英文描述： | TFT - LCD module |
| 中文描述： | 液晶-液晶顯示模塊 |
| 文件頁數(shù)： | 12/25頁 |
| 文件大?。?/td> | 431K |
| 代理商： | LD-17Y60 |
LD-17Y60-10
6-2. Backlight
The back light system is an edge-lighting type with 2 CCFTs (Cold Cathode Fluorescent Tube).
The characteristics of the lamp are shown in the following table.
The value mentioned below is at the case of one CCFT.
CCFT Model Name : KTBE24MSTF-530.5KB270-Z-L (STANLEY ELECTRIC CO.,LTD)
Parameter
Symbol
Min.
Typ.
Lamp current range
I
L
3.0
4.5
Lamp voltage
V
L
1000
Lamp power consumption
P
L
4.5
Max.
5.0
1150
5.2
Unit
mArms
Vrms I
L
=4.5 mArms Ta=25
W
Note2
I
L
=4.5 mArms Ta=25
kHz
Note3
Vrms Ta=0
hour
Note5
Remark
Note1
60kHz
60kHz
Lamp frequency
Kick-off voltage
Lamp life time
Note1
F
L
Vs
T
L
40
60
70
2200
60kHz
Note4
50,000
A lamp can be light in the range of lamp current shown above.
Maximum rating for current is measured by high frequency current measurement equipment
connected to V
LOW
at circuit showed below.
(Note : To keep enough kick-off voltage and necessary steady voltage for CCFT.)
Lamp frequency : 40
70kHz
Ambient temperature : 0
50
Note2
Referential data per one CCFT by calculation ( I
L
The data don’t include loss at inverter.
V
L ) .
Note3
Lamp frequency of inverter may produce interference with horizontal synchronous frequency, and this
may cause horizontal beat on the display. Therefore, adjust lamp frequency, and keep inverter as far as
from module or use electronic shielding between inverter and module to avoid interference.
Note4
This is transformer output voltage at 33pF for the ballast capacitor of a DC-AC inverter.
The kick-off voltage may rise up in the user set, please decide the open output voltage by checking not
to occur lighting failure under operating state.
The open output voltage should be applied to the lamp for more than 1 second to startup. Otherwise the
lamp may not be turned on.
1
2
Module
Inverter
V
2pin V
LOW
ballast capacitor(33pF)
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