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LM240WU8-SLA3
Specification
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LG Display LM240WU8-SLA3 Specification

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( ) Preliminary Specification
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LM240WU8
Liquid Crystal Display
Product Specification
FOR
APPROVAL
Title 24.0” WUXGA TFT LCD
BUYER HP
MODEL
APPROVED BY
/
/
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LM240WU8
SUFFIX SLA3
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
B. C. KIM / G.Manager
REVIEWED BY
S. H . Kim / Manager [C]
Y. H. Hwang / Manager [M]
SIGNATURE
DATE
M. S. Kang / Manager [P]
S. H. Han / Manager [O]
PREPARED BY
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 1.2 Feb. 28. 2012
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T. K. Kim / Engineer
IT Development Division 3
LG Display Co., Ltd
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LM240WU8
Liquid Crystal Display
Product Specification
Contents
No ITEM
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6
1) ELECTRICAL CHARACTERISTICS 6
2) INTERFACE CONNECTIONS 8
3) LVDS characteristics 11
4) SIGNAL TIMING SPECIFICATIONS 14
5) SIGNAL TIMING WAVEFORMS 15
6) COLOR INPUT DATA REFERNECE 16
7) POWER SEQUENCE 17
8) POWER DIP CONDITION 18
Page
4 OPTICAL SPECIFICATIONS 19
5 MECHANICAL CHARACTERISTICS 25
6RELIABILITY 28
7 INTERNATIONAL STANDARDS 29
1) SAFETY
2) EMC
3) ENVIRONMENT
8 PACKING 30
1) DESIGNATION OF LOT MARK 30
2) PACKING FORM 30
9 PRECAUTIONS 31
1) MOUNTING PRECAUTIONS 31
2) OPERATING PRECAUTIONS 31
3) ELECTROSTATIC DISCHARGE CONTROL 32
4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 32
29
29
27
5) STROAGE 32
6) HANDLING PRECAUTIONS FOR PROTECTION FILM 32
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LM240WU8
Liquid Crystal Display
Product Specification
Record of revisions
Revision
No.
0.0 Dec. 15. 2010 - Preliminary Specifications
0.1 Mar. 07. 2011 4 Updated the General Features
0.2 Jun. 27. 2011 20
1.0 Jul. 01. 2011 Final Specification
1.1 Jul. 20. 2011 28 Updated Altitude Specifications
1.2 Feb. 28. 2012 -
Revision Date Page Description
6 Updated the Electrical characteristics
7 Updated LED Bar Electrical characteristics
19 Updated the Optical characteristics
Updated the Surface Luminance Spec Measurement pint ( 5 point avg Æ center 1 point )
27 Update rear side drawing. (LCM Label Position changed)
Final Specification (Change module site : GM Æ GZ)
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LM240WU8
Liquid Crystal Display
Product Specification
1. General description
LM240WU8 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. It has a 24 inch 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 colors with Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method that enables low power, high speed, low EMI. FPD Link or compatible must be used as a LVDS(Low Voltage Differential Signaling) chip. It is intended to support applications where thin thickness, wide viewing angle, low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub­pixels, the LM240WU8’s characteristics provide an excellent flat panel display for office automation products such as monitors.
FIG. 1 Block diagram
LVDS
pair #1
LVDS
CN1
(30pin)
pair #2
+12V
VLCD
Power circuit
Timing
controller
block
V
Led (4ch)
RGB
Source driver circuit
S1
G1
TFT-LCD Panel
(1920ÝRGBÝ1200 pixels)
G1200
Backlight assembly (W-LEDs)
General features
Active screen size 24.1 inches(61.13cm) diagonal (Aspect ratio 16:10)
Outline Dimension 546.4(H) x 352.0(V) x 14.5(D) mm (Typ.)
S1920
Pixel Pitch 0.270 mm x 0.270 mm
Pixel Format 1920 hor. By 1200 Vertical Pixels RGB stripes arrangement
Interface LVDS 2Port
Color depth 16.7M colors (6bit+A-FRC)
2
Luminance, white 350 cd/m
( Center 1Point, typ)
Viewing Angle (CR>10) R/L 178(Typ.), U/D 178(Typ.)
Power Consumption
Total 28.02 Watt (Typ.) ( 5.52Watt @VLCD, 22.5 Watt @Vled)
Weight 2,370 g (typ.)
Display operating mode Transmissive mode, normally Black
Surface treatments Hard coating(3H), Anti-Glare treatment of the front polarizer
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LM240WU8
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
Parameter Symbol
Units Notes
Min Max
Values
Power Supply Input Voltage V
Operating Temperature T
Storage Temperature T
Operating Ambient Humidity H
Storage Humidity H
LCD
OP
ST
OP
ST
-0.3 +14.0 Vdc at 25 2C
050¶C
-20 60 ¶C
10 90 %RH
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.
2. Maximum Storage Humidity is up to 40୅, 70% RH only for 4 corner light leakage Mura.
3. Storage condition is guaranteed under packing condition
FIG. 2 Temperature and relative humidity
1, 2, 3
Wet Bulb Temperature [୅]
20
10
0
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [୅]
30
40
50
60
90%
60%
40%
10%
Storage
Operation
Humidity
[(%)RH]
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LM240WU8
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 LED Backlight, is typically generated by an LED Driver. The LED Driver is an external unit to the LCDs.
Table 2-1. Electrical characteristics
Parameter Symbol
Unit Notes
Min Typ Max
MODULE :
Values
Power Supply Input Voltage V
Permissive Power Input Ripple V
I
Power Supply Input Current
LCD-MOSAIC
I
LCD-WHITE
Power Consumption P
Inrush current I
LCD
LCD
LCD
RUSH
11.4 12.0 12.6 Vdc
- - 0.4 V 3
391 460 529 mA 1
553 650 748 mA 2
- 5.52 6.67 Watt 1
- - 3.0 A 4
Note :
1. The specified current and power consumption are under the V
LCD=12.0V, 25  2C,f
whereas mosaic pattern(8 x 6) is displayed and f
=60Hz condition
V
is the frame frequency.
V
2. The current is specified at the maximum current pattern.
3. Permissive power ripple should be measured under VCC=12.0V, 25C, f
(frame frequency)=Max
V
condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under 20MHz.
4. The duration of rush current is about 2ms and rising time of power Input is 500us  20%.
FIG.3 pattern for Electrical characteristics
power consumption measurement
White : 255Gray Black : 0Gray
Mosaic Pattern(8 x 6)
power input ripple
Full White Pattern
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Product Specification
Table 2-2 . LED Bar ELECTRICAL CHARACTERISTICS
LM240WU8
Liquid Crystal Display
Parameter Symbol Condition
LED : 1,7
LED String Current Is - 110 120 mA 2,7
LED String Voltage Vs 46.4 51.2 56.0 V 3,7
Power Consumption
LED Life Time LED_LT 30,000 - - Hrs 5,7
PBar - 22.5 24.6 Watt 4,6,7
Min. Typ. Max.
Values
Unit Notes
LED driver design guide
1) The design of the LED driver must have specifications for the LED in LCD Assembly.
The performance of the LED in LCM, for example life time or brightness, is extremely influenced by
the characteristics of the LED driver. So all the parameters of an LED driver should be carefully designed and output current should be Constant current control. Please control feedback current of each string individually to compensate the current variation among the strings of LEDs. When you design or order the LED driver, please make sure unwanted lighting caused by the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs. When you confirm it, the LCD module should be operated in the same condition as installed in your instrument.
2) LGD recommend that Dimming Control Signal ( PWM Signal) is synchronized with Frame Frequency
for Wavy Noise Free.
1. Specified values are for a single LED bar.
2. The specified current is input LED chip 100% duty current.
3. The specified voltage is input LED string and Bar voltage at typical 110 mA 100% duty current.
4. The specified power consumption is input LED bar power consumption at typical 110 mA 100% duty current.
5. The life is determined as the time at which luminance of the LED is 50% compared to that of initial
value at the typical LED current on condition of continuous operating at 25  2C.
6. The LED bar power consumption shown above does not include loss of external driver. The used LED bar current is the LED typical current. Min Power Consumption is calculated with PBar = Vs(Min.) x Is(Typ.) x Nstring Max Power Consumption is calculated with PBar = Vbar(Max.) x Is(Typ) x Nstring
7. LED operating DC Forward Current must not exceed LED Max Ratings at 25൥2 ൤C
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Liquid Crystal Display
Product Specification
3-2. Interface connections
- LCD Connector(CN1) : GT103-30S-H23-D (LSM), KDF71G-30S-1H(Hirose) or Equivalent
- Mating Connector : FI-X30C2L (Manufactured by JAE) or Equivalent
Table 3. Module connector(CN1) pin configuration
LM240WU8
Pin No
1 2 3 4 5 6
7
8
9 10 11 12 13 14 15 16
Symbol Description
RXO0­RXO0+ RXO1­RXO1+ RXO2­RXO2+
GND
RXOC­RXOC+ RXO3­RXO3+ RXE0­RXE0+ GND RXE1­RXE1+
Minus signal of 1st channel 0 (LVDS)
Plus signal of 1st channel 0 (LVDS) Minus signal of 1st channel 1 (LVDS) Plus signal of 1st channel 1 (LVDS) Minus signal of 1st channel 2 (LVDS) Plus signal of 1st channel 2 (LVDS) Ground Minus signal of 1st clock channel (LVDS) Plus signal of 1st clock channel (LVDS) Minus signal of 1st channel 3 (LVDS)
Plus signal of 1st channel 3 (LVDS)
Minus signal of 2nd channel 0 (LVDS) Plus signal of 2nd channel 0 (LVDS) Ground Minus signal of 2nd channel 1 (LVDS) Plus signal of 2nd channel 1 (LVDS)
First Pixel data
17
18 19 20 21 22 23 24 25 26 27 28 29 30
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GND
RXE2­RXE2+ RXEC­RXEC+ RXE3­RXE3+ GND NC NC PWM
LCD
V VLCD VLCD
Ground Minus signal of 2nd channel 2 (LVDS) Plus signal of 2nd channel 2 (LVDS) Minus signal of 2nd clock channel (LVDS) Plus signal of 2nd clock channel (LVDS) Minus signal of 2nd channel 3 (LVDS) Plus signal of 2nd channel 3 (LVDS) Ground No Connection (For LCD internal use only.) No Connection (For LCD internal use only.) PWM_OUT for Wavy Noise Power Supply (12.0V) Power Supply (12.0V) Power Supply (12.0V)
Second Pixel data
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FIG. 4 Connector diagram
1’st signal pairs
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LM240WU8
Liquid Crystal Display
Product Specification
GT103-30S-H23-D (LSM)
#1 #30
2’nd signal pairs
Power(+12V)
Note:
Rear view of LCM
1. NC: No Connection.
2. All GND(ground) pins should be connected together and to Vss which should also
be connected to the LCD’s metal frame.
3. All V
(power input) pins should be connected together.
LCD
4. Input Level of LVDS signal is based on the IEA 664 Standard.
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Product Specification
Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN2)
The LED interface connector is a model 10019HR-H06B manufactured by Yeonho . The pin configuration for the connector is shown in the table below.
Pin Symbol Description Notes
1 FB1 Channel1 Current Feedback
2 FB2 Channel2 Current Feedback
LM240WU8
Liquid Crystal Display
3 VLED LED Power Supply
4 VLED LED Power Supply
5 FB3 Channel3 Current Feedback
6 FB4 Channel4 Current Feedback
FIG. 5 Backlight connector diagram
Side view
Insert
Top view
6
1
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