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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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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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3-3. LVDS characteristics
3-3-1. DC Specification
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LM240WU8
Liquid Crystal Display
Product Specification
Description Symbol Min Max Unit Notes
LVDS Differential Voltage |V
LVDS Common mode Voltage V
LVDS Input Voltage Range V
3-3-2. AC Specification
LVDS Clock
LVDS Data
t
SKEW
Description Symbol Min Max Unit Notes
LVDS Clock to Data Skew Margin
LVDS Clock to Clock Skew Margin
(Even to Odd)
| 200 600 mV -
ID
CM
IN
(
F
t
SKEW
1) 85MHz > Fclk ˻65MHz : -350 ~ + 350
2) 65MHz > Fclk ˻25MHz : -600 ~ + 600
t
SKEW
t
SKEW
t
SKEW_EO
0.6 1.8 V -
0.3 2.1 V -
T
clk
clk
= 1 / T
)
clk
- 350 + 350 ps
- 600 + 600 ps
-1/7 + 1/7 T
85MHz > Fclk ≥ 65MHz
65MHz > Fclk ≥ 25MHz
clk
-
Note 1 :
This SSC specifications are just T-CON operation specification. In case of various system condition,
the optimum setting value of SSC can be different. LGD recommend the SI should be adjust the SSC
deviation and modulation frequency in order not to happen any kinds of defect phenomenon.
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< Clock skew margin between channel >
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LM240WU8
Liquid Crystal Display
Product Specification
3-3-3. LVDS Data format
RCLK +
RXinO0 +/-
RXinO1 +/-
RXinO2 +/-
RXinO3 +/-
RXinE0 +/-
RXinE1 +/-
RXinE2 +/-
RXinE3 +/-
OR3 OR2 OR1 OR0
OG4 OG3 OG2 OG1
OB5 OB4 OB3 OB2
OG7 OG6 OR7 OR6
ER3 ER2 ER1 ER0
EG4 EG3 EG2 EG1
EB5 EB4 EB3 EB2
EG7 EG6 ER7 ER6
Tclk
Tclk * 4/7 T clk * 3/7
Tclk * 1/7
OG0 OR5 OR4 OR3 OR2 OR1 OR0
OB1 OB0 OG5 OG4 OG3 OG2 OG1
VSYNC HSYNC
DE
X OB7 OB6 OG7 OG6 OR7 OR6
EG0 ER5 ER4 ER3 ER2 ER1 ER0
EB1 EB0 EG5 EG4 EG3 EG2 EG1
VSYNC HSYNC
DE
X EB7 EB6 EG7 EG6 ER7 ER6
OB5 OB4 OB3 OB2
EB5 EB4 EB3 EB2
Current(Nth) Cycl ePrevious (N-1) t h C y c l e Next(N+1)
< LVDS Data Format >
OG0 OR5 OR4
OB1 OB0 OG5
VSYNC HSYNC
DE
X OB7 OB6
EG0 ER5 ER4
EB1 EB0 EG5
VSYNC HSYNC
DE
X EB7 EB6
th Cycle
MSB R7
R6
R5
R4
R3
R2
R1
R0LSB
* ODD = 1st Pixel
EVEN = 2nd Pixel
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Product Specification
Table 5. Required signal assignment for Flat Link(NS:DS90CF383) transmitter
Pin # Require SignalPin Name Pin # Require SignalPin Name
1 Power Supply for TTL InputVCC 29 Ground pin for TTLGND
2 TTL Input (R7)D5 30 TTL Input (DE)D26
3 TTL Input (R5)D6 31 TTL Level clock InputTXCLKIN
4 TTL Input (G0)D7 32 Power Down InputPWR DWN
5 Ground pin for TTLGND 33 Ground pin for PLLPLL GND
6 TTL Input (G1)D8 34 Power Supply for PLLPLL VCC
LM240WU8
Liquid Crystal Display
7 TTL Input (G2)D9 35 Ground pin for PLLPLL GND
8 TTL Input (G6)D10 36 Ground pin for LVDSLVDS GND
9 Power Supply for TTL InputVCC 37 Positive LVDS differential data output 3TxOUT3ు
10 TTL Input (G7)D11 38 Negative LVDS differential data output 3TxOUT3ృ
11 TTL Input (G3)D12 39 Positive LVDS differential clock outputTXCLKOUTు
12 TTL Input (G4)D13 40 Negative LVDS differential clock outputTXCLKOUTృ
13 Ground pin for TTLGND 41 Positive LVDS differential data output 2TXOUT2ు
14 TTL Input (G5)D14 42 Negative LVDS differential data output 2TXOUT2ృ
15 TTL Input (B0)D15 43 Ground pin for LVDSLVDS GND
16 TTL Input (B6)D16 44 Power Supply for LVDSLVDS VCC
17 Power Supply for TTL InputVCC 45 Positive LVDS differential data output 1TXOUT1ు
46 Negative LVDS differential data output 1TXOUT1ృ18 TTL Input (B7)D17
19 TTL Input (B1)D18
20 TTL Input (B2)D19
22 TTL Input (B3)D20
23 TTL Input (B4)D21
47 Positive LVDS differential data output 0TXOUT0ు
48 Negative LVDS differential data output 0TXOUT0ృ
49 Ground pin for LVDSLVDS GND21 Ground pin for TTL InputGND
50 TTL Input (R6)D27
51 TTL Input (R0)D0
24 TTL Input (B5)D22
25 TTL Input (RSVD)D23
26 Power Supply for TTL InputVCC 54 TTL Input (R2)D2
52 TTL Input (R1)D1
53 Ground pin for TTLGND
55 TTL Input (R3)D327 TTL Input (HSYNC)D24
56 TTL Input (R4)D428 TTL Input (VSYNC)D25
Notes : 1. Refer to LVDS Transmitter Data Sheet for detail descriptions.
2. 7 means MSB and 0 means LSB at R,G,B pixel data
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3-4. Signal timing specifications
This is the signal timing required at the input of the User connector. All of the interface signal
timing should be satisfied with the following specifications for it’s proper operation.
Table 6. TIMING TABLE (VESA COORDINATED VIDEO TIMING)
ITEM SYMBOL Min Typ Max Unit Note
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LM240WU8
Liquid Crystal Display
Product Specification
DCLK
Hsync
Vsync
Data
Enable
Period
Frequency
Period
Width-Active
Period
Frequency
Width-Active
Horizontal Valid
Horizontal Back Porch
Horizontal Front Porch
Horizontal Blank
Vertical Valid
tCLK
fCLK
tHP
tWH
tVP
fV
tWV
tHV
tHBP
tHFP
-
tVV
12.49 12.98 16.06
62.24 77 80
1013 1040 1048
16 16 16
1229 1235 1390
49.5 59.95 61
6 6 6
960 960 960
21 40 44
16 24 28
53 80 88
1200 1200 1200
ns
MHz
tCLK
tHP
Hz
tHP
tCLK
Pixel frequency
: Typ. 154MHz
Meet DCLK Max
80Mhz.
tWH+ tHBP+ tHFP
Vertical Back Porch
tVBP
21 26 180
tHP
Vertical Front Porch
Vertical Blank
tVFP
-
Note: Hsync period and Hsync width-active should be even number times of t
times of t
CLK, display control signal can be asynchronous. In order to operate this LCM a Hsync,
234
29 35 190
CLK. If the value is odd number
tWV+ tVBP+ tVFP
Vsyn, and DE(data enable) signals should be used.
1. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rates.
2. Vsync and Hsync should be keep the above specification.
3. Hsync Period, Hsync Width, and Horizontal Back Porch should be any times of of character
number(8).
4. The polarity of Hsync, Vsync is not restricted.
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3-5. Signal timing waveforms
1. DCLK , DE, DATA waveforms
t
CLK
Clk
tad thud
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LM240WU8
Liquid Crystal Display
Product Specification
Valid
Invalid
Data
DE(Data Enable)
2. Horizontal waveform
DE(Data Enable)
3. Vertical waveform
Invalid
tsar this
th
tHV
DE
top
tVV
DE(Data Enable)
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3-6. Color input data reference
The brightness of each primary color (red,green and blue) is based on the 8bit gray scale data
input for the color ; the higher the binary input, the brighter the color. The table below
provides a reference for color versus data input.
Table 7. Color data reference
Color
MSB LSB
R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0
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Product Specification
Input Color Data
Red
MSB LSB
Green
LM240WU8
Liquid Crystal Display
Blue
MSB LSB
Basic
Color
Red
Green
Blue
Black
Red (255)
Green (255)
Blue (255)
Cyan
Magenta
Yellow
White
Red(000) Dark
Red(001)
Red(002)
---------
--------Red(253)
Red(254)
Red(255) Bright
Green(000) Dark
Green(001)
Green(002)
---------
--------Green(253)
Green(254)
Green(255)Bright
Blue(000) Dark
Blue(001)
Blue(002)
---------
--------Blue(253)
Blue(254)
Blue(255) Bright
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
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3-7. Power sequence
LCD
V
Power Supply For LCD
Interface Signal (Tx)
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Product Specification
90% 90%
10%
T2 T5 T7
T1
Valid data
LM240WU8
Liquid Crystal Display
10%
Power for BLU
Table 8. Power sequence
Parameter
T1 0.5 - 10 ms
T2 0.01 - 50 ms
T3 200 - - ms
T4 200 - - ms
T5 0.01 - 50 ms
T7 1 - - s
0V
OFF
Min Typ Max
T3
LED on
Values
T4
OFF
Units
Notes :
1. Please V
power on only after connecting interface cable to LCD.
LCD
2. Please avoid floating state of interface signal at invalid period.
3. When the interface signal is invalid, be sure to pull down the power supply for
LCD V
LCD
to 0V.
4. Lamp power must be turn on after power supply for LCD an interface signal are valid.
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LM240WU8
Liquid Crystal Display
Product Specification
3-8. V
Power dip condition
LCD
FIG. 6 Power dip condition
Dip condition
V
LCD
V
LCD_dip
t
d
LCD_dip ≤ V
V
X 0.2, td≤20ms
LCD_typ
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4. Optical specification
Optical characteristics are determined after the unit has been ‘ON’ for 30 minutes in a dark
environment at 25¶C. The values specified are at an approximate distance 50cm from the LCD
surface at a viewing angle of Φ and θ equal to 0 ¶.
FIG. 7 presents additional information concerning the measurement equipment and method.
FIG. 7 Optical characteristic measurement equipment and method
Optical
Stage(x,y)
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LM240WU8
Liquid Crystal Display
Product Specification
LCD Module
Pritchard 880
or equivalent
50cm
Table 9. Optical characteristics
Ta= 25¶C, V
Parameter Symbol
Min Typ Max
Contrast Ratio CR 700 1000 1
Surface Luminance, white L
Luminance Variation
Response Time Gray to Gray T
δ
GTG_AVR
WH
WHITE
250 300 cd/m
75 % 3
-1428ms4
RED Rx
Ry 0.331
GREEN Gx 0.314
Color Coordinates
[CIE1931]
(By PR650)
BLUE Bx 0.152
Gy 0.618
Typ
-0.03
By 0.071
WHITE Wx 0.313
Wy 0.329
Color Shift
(Avg. Δu’v’ < 0.02)
Horizontal
Vertical
θ
CST_H
θ
CST_V
- 140 -
- 100 -
Viewing Angle (CR>10)
General
GSR @ 60dgree
(Gamma shift rate)
Horizontal
Vertical
Horizontal
Vertical
θ
H
θ
V
δ
Gamma_H
δ
Gamma_V
170 178 -
170 178 -
--20
--20
WPT (White Point Tracking) - -300 G255 CCT +700 K 8
Color gamut (CG, CIE1976) - 82 - %
Gray Scale 2.2 9
=12.0V, fV=60Hz, D
LCD
Values
0.640
Typ
+0.03
=154MHz, Is=110mA
CLK
Units Notes
2
Degree 5
Degree 6
%7
2
10
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pixels
white
all with
Luminance
Surface
24
Notes 1. Contrast Ratio(CR) is defined mathematically as : (By PR880)
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LM240WU8
Liquid Crystal Display
Product Specification
RatioContrast =
pixels black all with Luminance Surface
It is measured at center point(Location P1)
2. Surface luminance(L
the surface with all pixels displaying white. For more information see FIG 7. (By PR880)
L
= = Average[ Lon1,Lon2,Lon3,Lon4,Lon5]
WH
3. The variation in surface luminance , δ WHITE is defined as : (By PR880)
δ
Where L1 to L9 are the luminance with all pixels displaying white at 9 locations.
For more information see FIG 8.
4. Gray to gray response time is the time required for the display to transition from gray to gray. For
additional information see Table 10. (By RD80S)
5. Color shift is the angle at which the average color difference for all Macbeth is lower than 0.02.
For more information see FIG 9. (By EZ Contrast)
- Color difference (Δu’v’)
'
=
u
WH)is luminance value at 5 points average across the LCD surface 50cm from
WHITE
4
=
…
x
v
'
3122
++−
yx
=
)L .. ,L,Minimum(L
P9P2P1
100
×
)L .... ,L ,(L Maximum
P9P2P1
y
9
++−
yx
3122
2
21
2
)''()''('' vvuuvu −+−=Δ
21
24
)''(
Δ
∑
=
i
1
)''(
=Δ
vuAvg
- Pattern size : 25% Box size
- Viewing angle direction of color shift : Horizontal, Vertical
6. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are
determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which
is normal to the LCD surface. For more information see FIG 10. (By PR880)
7. GSR is the rate of gamma shift at up, down, left and right 60 degree viewing angle compare with
center gamma. For more information see FIG 11 and FIG 12
-GSR (δ
8. WPT (White Point Tracking) is the variation of color temperature between G255 and G63.
(By PR650)
Ver. 1.0 Apr, 29, 2011
) is defined as :
Gamma
⎛
1 ×⎟⎟
⎜
−=GSR
⎜
⎝
ivu
u’1, v’1 : u’v’ value at viewing angle direction
u’2, v’2 : u’v’ value at front (θ=0)
i : Macbeth chart number (Define 22 page)
(By EZ Contrast)
Degree) 60Light Reft, Down, (Up, Value Gamma angle View
Degree) (0 Value GammaCenter
⎞
100
⎠
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Notes 9. Gray scale specification
Gamma Value is approximately 2.2. For more information see Table 11.
Notes 10. Color coordinates were complied from color gamut 71% target.
Measuring point for surface luminance & measuring point for luminance variation.
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LM240WU8
Liquid Crystal Display
Product Specification
H
H/2
P2
P5
V/2
V
V/10
P7
P3
P1
P8
H/10
P4
P6
P9
H : 518.4 mm
V : 324.0 mm
FIG. 8 Measure Point for Luminance
The gray to gray response time is defined as the following figure and shall be measured by switching the
input signal for “Gray To Gray”.
- Gray step : 5 step
-T
GTG_AVR is the total average time at rising time and falling time for “Gray To Gray”.
- In case of the difference in measured values due to the difference of measuring device or
program was found, correlated value will be used after discussions between both parties.
Table 10. Gray to gray response time table
Gray to Gray
G255
G191
Falling Time
Ver. 1.0 Apr, 29, 2011
G127
G63
G0
G255 G191 G127 G63 G0
Rising Time
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Color shift is defined as the following test pattern and color.
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LM240WU8
Liquid Crystal Display
Product Specification
25% Box size
FIG. 9 Color Shift Test Pattern
Average RGB values in Bruce RGB for Macbeth Chart
Dark skin Light skin Blue sky Foliage Blue flower Bluish green
R 395 827 343 311 519 459
G 227 571 451 411 475 799
B 183 495 647 187 743 715
Orange Purplish blue Moderate red Purple Yellow green Orange yellow
R 879 227 847 307 643 923
G 419 279 271 159 775 651
B 99 699 351 347 235 119
Blue Green Red Yellow Magenta cyan
R 107 291 791 967 831 143
G 131 595 111 851 251 507
B 583 263 151 147 607 691
White Neutral 8 Neutral 6.5 Neutral 5 Neutral 3.5 black
R 963 827 623 443 255 91
G 963 827 623 443 255 91
B 963 827 623 443 255 91
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Dimension of viewing angle range.
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LM240WU8
Liquid Crystal Display
Product Specification
φ
= 180°, Left
φ
= 270°, Down
Normal
E
θ
φ
FIG. 10 Viewing angle
Y
φ
= 90°, Up
φ
= 0°, Right
FIG. 11 Sample Luminance vs. gray scale
(using a 256 bit gray scale)
r
LaVL +=
b
FIG. 12 Sample Log-log plot of luminance
vs. gray scale
b
+=−
Here the Parameter α and γ relate the signal level V to the luminance L.
The GAMMA we calculate from the log-log representation (FIG. 11)
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Table 11. Gray Scale Specification
Gray Level Relative Luminance [%] (Typ.)
00.1
31 1.2
63 4.7
95 11.7
127 21.2
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LM240WU8
Liquid Crystal Display
Product Specification
159 35.2
191 53.0
223 75.4
255 100
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Liquid Crystal Display
Product Specification
5. Mechanical characteristics
The contents provide general mechanical characteristics. In addition the figures in the next
page are detailed mechanical drawing of the LCD.
Table 12. Mechanical characteristics
Horizontal 546.4mm
LM240WU8
Outline dimension
Bezel area
Active display area
Weight 2,370 g (Typ.), 2,490 g (Max.)
Surface treatment
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
Vertical 352.0mm
Depth 14.5 mm
Horizontal 522.4mm
Vertical 328.0mm
Horizontal 518.4mm
Vertical 324.0mm
Hard coating(3H)
Anti-Glare treatment of the front polarizer
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< FRONT VIEW >
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LM240WU8
Liquid Crystal Display
Product Specification
PAD thickness : 0.2mm (+0.05/0)
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< REAR VIEW >
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Liquid Crystal Display
Product Specification
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6. Reliability
Table 13. Environment test conditions
No Test Item Condition
1 High temperature storage test Ta= 60¶C 240h
2 Low temperature storage test Ta= -20¶C 240h
3 High temperature operation test Ta= 50¶C 50%RH 240h
4 Low temperature operation test Ta= 0¶C 240h
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LM240WU8
Liquid Crystal Display
Product Specification
Wave form : random
5
6
7 Humidity condition Operation Ta= 40 ¶C ,90%RH
8
9
{ Result evaluation criteria }
There should be no change which might affect the practical display function when the display
quality test is conducted under normal operating condition.
Vibration test
(non-operating)
Shock test
(non-operating)
Altitude
storage / shipment 0 - 40,000 feet(12192m)
Maximum Storage Humidity for
4 corner light leakage Mura.
Vibration level : 1.0G RMS
Bandwidth : 10-300Hz
Duration : X,Y,Z, 10 min
One time each direction
Shock level : 100G
Waveform : half sine wave, 2ms
Direction : ᇹX, ᇹY, ᇹZ
One time each direction
Max 70%RH , Ta=40
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7. International standards
7-1. Safety
a) UL 60950-1, Second Edition, Underwriters Laboratories Inc.
Information Technology Equipment - Safety - Part 1 : General Requirements.
b) CAN/CSA C22.2 No.60950-1-07, Second Edition, Canadian Standards Association.
Information Technology Equipment - Safety - Part 1 : General Requirements.
c) EN 60950-1:2006 + A11:2009, European Committee for Electrotechnical Standardization
(CENELEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
d) IEC 60950-1:2005, Second Edition, The International Electrotechnical Commission (IEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
(Including report of IEC60825-1:2001 clause 8 and clause 9)
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LM240WU8
Liquid Crystal Display
Product Specification
Notes
1. Laser (LED Backlight) Information
Class 1M LED Product
IEC60825-1 : 2001
Embedded LED Power (Class1M)
2. Caution
: LED inside.
Class 1M laser (LEDs) radiation when open.
Do not open while operating.
7-2. EMC
a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise
Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz
to 40 GHz.”
American National Standards Institute (ANSI), 2003.
b) CISPR 22 “Information technology equipment – Radio disturbance characteristics –
Limit and methods of measurement." International Special Committee on Radio
Interference (CISPR), 2005.
c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio
disturbance
characteristics – Limits and method of measurement." International Special Committee
on Radio Interference (CISPR), 2006.
7-3. Environment
a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27
January 2003
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8. Packing
8-1. Designation of lot mark
a) Lot mark
ABCDEFGHI JKLM
A,B,C : Size (Inch) D : Year
E : Month F ~ M : Serial No.
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LM240WU8
Liquid Crystal Display
Product Specification
Note:
1. Year
Year
Mark
2016G2017H2018J2019
F
CBA
2014E2015
D
201320122011
2020
K
2. Month
Month
Mark
Apr5May
4
Jun7Jul8Aug9Sep
6
Oct
A
b) Location of lot mark
Serial No. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.
8-2. Packing form
a) Package quantity in one box : 8pcs
Nov
B
DecMarFebJan
C321
b) Box size : 408mm X 355mm X 600mm
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9. Precautions
Please pay attention to the followings when you use this TFT LCD module.
9-1. Mounting Precautions
(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is
not applied to the Module. And the case on which a module is mounted should have
sufficient strength so that external force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect
the polarizer. Transparent protective plate should have sufficient strength in order to the
resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because
the former generates corrosive gas of attacking the polarizer at high temperature and the
latter causes circuit break by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder
than HB pencil lead. And please do not rub with dust clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.
(Some cosmetics are detrimental to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft
materials like chamois soaks with petroleum benzene. Normal-hexane is recommended
for cleaning the adhesives used to attach front / rear polarizers. Do not use acetone,
toluene and alcohol because they cause chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer
causes deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
(10) As The IPS panel is sensitive & slim, please recommend the metal frame of the system
supports the panel
by the double side-mount.
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LM240WU8
Liquid Crystal Display
Product Specification
9-2. Operating precautions
(1) The spike noise causes the mis-operation of circuits. It should be lower than following
voltage : V=·200mV(Over and under shoot voltage)
(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes lower.)
And in lower temperature, response time(required time that brightness is stable after
turned on) becomes longer.
(4) Be careful for condensation at sudden temperature change. Condensation makes damage
to polarizer or electrical contacted parts. And after fading condensation, smear or spot will
occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic
interference shall be done by system manufacturers. Grounding and shielding methods
may be important to minimized the interference.
(7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can
not be operated its full characteristics perfectly.
(8) A screw which is fastened up the steels should be a machine screw (if not, it causes metal
foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.
(10) When LCMs are used for public display defects such as Yogure, image sticking can not be guarantee.
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9-3. Electrostatic discharge control
Since a module is composed of electronic circuits, it is not strong to electrostatic discharge.
Make certain that treatment persons are connected to ground through wrist band etc. And
don’t touch interface pin directly.
9-4. Precautions for strong light exposure
Strong light exposure causes degradation of polarizer and color filter.
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LM240WU8
Liquid Crystal Display
Product Specification
9-5. Storage
When storing modules as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep
the temperature between 5¶C and 35¶C at normal humidity.
(2) The polarizer surface should not come in contact with any other object.
It is recommended that they be stored in the container in which they were shipped.
9-6. Handling precautions for protection film
(1) The protection film is attached to the bezel with a small masking tape.
When the protection film is peeled off, static electricity is generated between
the film and polarizer. This should be peeled off slowly and carefully by people who are
electrically grounded and with well ion-blown equipment or in such a condition, etc.
(2) When the module with protection film attached is stored for a long time,
sometimes there remains a very small amount of glue still on the bezel
after the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel surface or
its vestige is recognized, please wipe them off with absorbent cotton waste or
other soft material like chamois soaked with normal-hexane.
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