LG Display LM240WU8-SLA2 Specification
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( ) Preliminary Specification
(
) Final Specification
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LM240WU8
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
Title 24.0” WUXGA TFT LCD
BUYER DELL
MODEL
APPROVED BY
/
/
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LM240WU8
SUFFIX SLA2
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
REVIEWED BY
PREPARED BY
SIGNATURE
DATE
/
Please return 1 copy for your confirmation with
your signature and comments.
Ver. 1.0 Apr, 29, 2011
Products Engineering Dept.
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
4 OPTICAL SPECIFICATIONS 19
Page
5 MECHANICAL CHARACTERISTICS 25
6 RELIABILITY 28
7 INTERNATIONAL STANDARDS 29
1) SAFETY
2) EMC
3) ENVIRONMENT
8PACKING 30
1) DESIGNATION OF LOT MARK 30
2) PACKING FORM 30
9PRECAUTIONS 31
1) MOUNTING PRECAUTIONS 31
2) OPERATING PRECAUTIONS 31
3) ELECTROSTATIC DISCHARGE CONTROL 32
4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 32
5) STROAGE 32
6) HANDLING PRECAUTIONS FOR PROTECTION FILM 32
29
29
27
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LM240WU8
Liquid Crystal Display
Product Specification
Record of revisions
Revision
No.
0.0 Oct. 04. 2010 - Preliminary Specifications
0.1 Dec. 01. 2010 4 Updated the General Features
0.2 Dec. 06. 2010 14 Updated Timing Table ( Support Vertical Freq. 50hz)
0.3 Jan. 19. 2011 14 Updated Timing Table ( Support Vertical Freq. 49.5hz)
0.4 Jan. 28. 2011 4, 6 Updated Electrical characteristics
0.5 Feb. 14. 2011 4, 6 Updated Electrical characteristics
Revision Date Page Description
6 Updated the Electrical characteristics
8 Changed the CN1 pin configuration ( pin 25, 26, 27 )
19 Updated the Optical characteristics
25 Updated the Mechanical characteristics (Weight)
26, 27 Updated the mechanical drawing
19 Updated the Optical characteristics
7 Updated LED Bar Electrical characteristics
19 Updated the Optical characteristics
26 Updated the mechanical drawing ( Add pad thickness )
19 Updated the Optical characteristics
0.6 Mar. 31. 2011 14 Updated Timing Table ( Not fixed )
0.7 Apr. 06. 2011 19 Updated the Optical characteristics (Color Coordinates)
0.8 Apr. 21. 2011 14 Updated Timing Table ( fixed )
1.0 Apr. 29. 2011 - Final Specification
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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)
S1920
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.)
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)
Luminance, white 300 cd/m
2
( 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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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
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LM240WU8
Liquid Crystal Display
Product Specification
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 ± 2¶C
050
-20 60
¶C
¶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
90%
60
60%
1, 2, 3
Wet Bulb
50
Temperature []
40
30
20
10
0
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature []
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40%
10%
Humidity
[(%)RH]
Storage
Operation
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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
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LM240WU8
Liquid Crystal Display
Product Specification
Parameter Symbol
Values
Unit Notes
Min Typ Max
MODULE :
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
whereas mosaic pattern(8 x 6) is displayed and f
LCD=12.0V, 25 ± 2¶C,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, 25¶C, 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)
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power input ripple
Full White Pattern
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Table 2-2 . LED Bar ELECTRICAL CHARACTERISTICS
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LM240WU8
Liquid Crystal Display
Product Specification
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 ± 2¶C.
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 252 C
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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
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LM240WU8
Liquid Crystal Display
Product Specification
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Symbol Description
RXO0RXO0+
RXO1RXO1+
RXO2RXO2+
GND
RXOCRXOC+
RXO3RXO3+
RXE0RXE0+
GND
RXE1RXE1+
GND
RXE2RXE2+
RXECRXEC+
RXE3RXE3+
GND
NC
NC
PWM
LCD
V
VLCD
VLCD
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)
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)
First Pixel data
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
Note:
Power(+12V)
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
4. Input Level of LVDS signal is based on the IEA 664 Standard.
(power input) pins should be connected together.
LCD
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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
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LM240WU8
Liquid Crystal Display
Product Specification
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
Top view Side view
Insert
6
1
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