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LM240WU7
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 24.0" WUXGA TFT LCD
BUYER HP SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LM240WU7
SUFFIX SLB3
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE
APPROVED BY SIGNATURE
DATE APPROVED BY DATE
/ B.C KIM / G.Manager
REVIEWED BY
S.H KIM / Manager [C]
/ Y.H HWANG / Manager [M]
I.M. CHOI / Manager [P]
PREPARED BY
/
T.K KIM / Engineer
Please return 1 copy for your confirmation with MNT Products Engineering Dept.
your signature and comments. LG Display Co., Ltd.
Ver. 1.0 Apr. 21 . 2011 1 / 34
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LM240WU7
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6
3-1 ELECTRICAL CHARACTREISTICS 6
3-2 INTERFACE CONNECTIONS 9
3-3 SIGNAL TIMING SPECIFICATIONS 14
3-4 SIGNAL TIMING WAVEFORMS 15
3-5 COLOR INPUT DATA REFERNECE 16
3-6 POWER SEQUENCE 17
3-7 VLCD DIP CONDITION 18
4 OPTICAL SFECIFICATIONS 19
5 MECHANICAL CHARACTERISTICS 25
6 RELIABLITY 26
7 INTERNATIONAL STANDARDS 27
7-1 SAFETY 27
7-2 EMC 27
7-3 ENVIRONMENT 27
8 PACKING 28
8-1 DESIGNATION OF LOT MARK 28
8-2 PACKING FORM 29
8-3 PALLET FORM 30
9 PRECAUTIONS 31
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LM240WU7
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
Revision
Revision Date Page Description
No
0.0 Dec. 08.2010 - First Draft (Preliminary)
0.1 Feb. 28. 2011 19 Update color coordinates
27 Update Mechanical drawings
30 Update Designation of Lot Mark
0.2 Mar. 02. 2011 30 Update Designation of Lot Mark
0.3 Mar. 07. 2011 5 Add notes
1.0 Apr. 21. 2011 - Final Draft
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LM240WU7
Liquid Crystal Display
Product Specification
1. General Description
LM240WU7 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive type display operating in the normally black mode. It has a 24inch diagonally measured
active display area with WUXGA resolution (1200 vertical by 1920 horizontal pixel array)
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.
Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus, presenting a palette of more than 16,7M(True) colors.
It has been designed to apply the 8Bit 2 port LVDS interface.
It is intended to support displays where high brightness, super wide viewing angle,
high color saturation, and high color are important.
RGB Source Driver Circuit
S1 S1920
LVDS
2port
CN1 Timing
(30pin)
Controller
+12.0V
TFT - LCD Panel
(1920 RGB 1200 pixels)
+12.0V
Power Circuit
Block
VLamp 2 x 6Sockets (High)
Back light Assembly
(U-Shape 6CCFL)
General Features
Active Screen Size 24.1 inches(61.13cm) diagonal
Outline Dimension 546.4(H) x 352.0(V) x 35.7(D) mm(Typ.) * without inverter
Pixel Pitch 0.270 mm x 0.270 mm
Pixel Format 1920 horiz. By 1200 vert. Pixels RGB stripes arrangement
Color Depth 8-bit, 16,777,216 colors
Luminance, White 400 cd/m2 ( Center 1 points)
Viewing Angle(CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))
Power Consumption Total 69.72 Watt (Typ.) ( 6.72 Watt@VLCD, 63 Watt @Vlamp)
Weight 2830 g (typ.)
Display Operating Mode Transmissive mode, normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer
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LM240WU7
Liquid Crystal Display
Product Specification
2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. ABSOLUTE MAXIMUM RATINGS
Values
Parameter Symbol Units Notes
Min Max
Power Input Voltage VLCD -0.3 14 Vdc at 25 r 2 C
Operating Temperature TOP 0 50 C
Storage Temperature TST -20 60 C
1, 2
Operating Ambient Humidity HOP 10 90 %RH
Storage Humidity HST 10 90 %RH
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 C Max, and no condensation of water.
Note : 2. Maximum Storage Humidity is up to 40 , 70% RH only for 4 corner light leakage Mura.
Note : 3. Storage condition is guaranteed under packing condition
90%
60
60%
50 Storage
Humidity [(%)RH]
Wet Bulb
Temperature [C]
40
40%
Operation
30
20
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [C]
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LM240WU7
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and
liquid crystal. The second input power for the CCFL, is typically generated by an inverter. The inverter is an
external unit to the LCDs.
Table 2. ELECTRICAL CHARACTERISTICS
Values
Parameter Symbol Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage VLCD 11.4 12.0 12.6 Vdc
Permissive Power Input Ripple VRF 400 mV 1
476 560 644 mA 2
Power Supply Input Current ILCD
637 750 863 mA 3
Differential Impedance Zm 90 100 110 ohm
Power Consumption PLCD - 6.72 7.73 Watt 2
Rush current IRUSH - - 3 A 4
LAMP :
Operating Voltage VBL 1550(8.0mA) 1750(6.0mA) 1950(3.0mA) VRMS 5, 6
Operating Current IBL 3.0 6.0 8.0 mARMS 5
Established Starting Voltage Vs 5,7
at 25 C 2500 VRMS
at 0 C 2900 VRMS
Operating Frequency fBL 40 55 80 kHz 8
Discharge Stabilization Time Ts - 3 Min 5, 9
Power Consumption PBL 63 69.3 Watt 10
Life Time 50,000 Hrs 5, 11
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