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PDF ( 数据手册 , 数据表 ) QD141X1LH12AA

零件编号 QD141X1LH12AA
描述 QD141X1LH12 Spec
制造商 ETC
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QD141X1LH12AA 数据手册, 描述, 功能
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QD141X1LH12AA Page 1
These specification sheets are the proprietary product of Quanta Display Inc. (”QDI”) and
include materials protected under copyright of QDI. Do not reproduce or cause any third
party to reproduce them in any form or by any means, electronic or mechanical, for any
purpose, in whole or in part, without the express written permission of QDI.
The device listed in these technical literature sheets was designed and manufactured for
use in OA equipment.
In case of using the device for applications such as control and safety equipment for
transportation (aircraft, trains, automobiles, etc. ), rescue and security equipment and
various safety related equipment which require higher reliability and safety, take into
consideration that appropriate measures such as fail-safe functions and redundant system
design should be taken.
Do not use the device for equipment that requires an extreme level of reliability, such as
aerospace applications, telecommunication equipment (trunk lines), nuclear power control
equipment and medical or other equipment for life support.
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QDI assumes no responsibility for any damage resulting from the use of the device which
does not comply with the instructions and the precautions specified in these technical
literature sheets.
Contact and consult with a QDI sales representative for any questions about this device.
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QD141X1LH12AA pdf, 数据表
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QD141X1LH12AA Page 8
6-2. Backlight driving
The backlight system is an edge-lighting type with single CCFT (Cold Cathode
Fluorescent Tube).
The characteristics of the lamp are shown in the following table.
Parameter
Symbol Min. Typ. Max. Unit
Remark
Lamp current range
IL 2.0 4.0 6.0 mArms Note1
Lamp voltage
VL
660 Vrms
Lamp
power PL
2.7 W 【Note2
consumption
Lamp frequency
Kick-off voltage
FL 30
Vs
60 70 kHz Note3
1500 Vrms Ta=25
1500 Vrms Ta=0℃ 【Note4
Lamp life time
LL 10000
hour Note5
Note1Lamp current is measured with current meter for high frequency as shown
Module
Inverter
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* pin is VLOW
below.
Note2Calculated Value for reference ( IL × V L)
Note3 Lamp frequency may produce interference with horizontal synchronous
frequency, and this may cause beat on the display. Therefore lamp frequency shall be
detached as much as possible from the horizontal synchronous frequency and from the
harmonics of horizontal synchronous to avoid interference.
Note4It is defined at 22pF for the ballast capacitor of a DC/AC inverter.
The voltage above this value should be applied to the lamp for more than 1
second to start-up. Otherwise the lamp may not be turned on.
Note5Lamp life time is defined as the time when either or occurs in the
continuous operation under the condition of Ta = 25and IL = 6.0 mArms.
Brightness becomes 50 % of the original value under standard condition.
Kick-off voltage at Ta = 0exceeds maximum value, 1500V rms.
Note) The performance of the backlight, for example life time or brightness, is much
influenced by the characteristics of the DC-AC inverter for the lamp. When you design or
order the inverter, please make sure that a poor lighting caused by the mismatch of the
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QD141X1LH12AA equivalent, schematic
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QD141X1LH12AA Page 16
10. Display Quality
The display quality of the color TFT-LCD module shall be in compliance with the Incoming
Inspection Standard.
11Handling Precautions
a) Be sure to turn off the power supply when inserting or disconnecting the cable.
b) Be sure to design the cabinet so that the module can be installed without any extra
stress such as warp or twist.
c) Since the front polarizer is easily damaged, pay attention not to scratch it.
d) Wipe off water drop immediately. Long contact with water may cause discoloration or
spots.
e) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
f) Since the panel is made of glass, it may break or crack if dropped or bumped on hard
surface. Handle with care.
g) Since CMOS LSI is used in this module, take care of static electricity and injure the
human earth when handling.
h) Observe all other precautionary requirements in handling components.
i) This module has its circuitry PCBs on the rear side and should be handled carefully in
order not to be stressed.
www.DataSheet4U.comj) Laminated film is attached to the module surface to prevent it from being scratched .
Peel the film off slowly just before the use with strict attention to electrostatic
charges. Ionized air shall be blown over during the action. Blow off the 'dust' on the
polarizer by using an ionized nitrogen gun, etc..
K) Black PET sheet covers some electric components and handle with special care to
avoid mechanical stress and shock on this PET surface.
L) Mounting screw hole can stand torque 1.3~1.5 Kgf-cm.
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