LM240WU8 [LG]
24.0â WUXGA TFT LCD;
| 型号： | LM240WU8 |
| 厂家： | 
LG SEMICON CO.,LTD. |
| 描述： | 24.0â WUXGA TFT LCD CD |
| 文件： | 总32页 (文件大小：1382K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM240WU8
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
(
(
) Preliminary Specification
) Final Specification
Title
24.0” WUXGA TFT LCD
BUYER
MODEL
General
SUPPLIER
*MODEL
SUFFIX
LG Display Co., Ltd.
LM240WU8
SLA2
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE
DATE
SIGNATURE
APPROVED BY
APPROVED BY
DATE
/
B.C. Kim / G.Manager
REVIEWED BY
/
/
S.H. Kim / Manager
PREPARED BY
H.J. Park / Engineer
Please return 1 copy for your confirmation with
your signature and comments.
Products Engineering Dept.
LG. Display Co., Ltd
Ver. 0.0
Apr, 07, 2011
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LM240WU8
Liquid Crystal Display
Product Specification
Contents
No
ITEM
Page
1
COVER
CONTENTS
2
3
4
5
6
6
RECORD OF REVISIONS
1
2
3
GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
1)
2)
3)
4)
INTERFACE CONNECTIONS
LVDS characteristics
8
11
14
SIGNAL TIMING SPECIFICATIONS
5)
6)
7)
SIGNAL TIMING WAVEFORMS
COLOR INPUT DATA REFERNECE
POWER SEQUENCE
15
16
17
19
25
28
29
OPTICAL SPECIFICATIONS
MECHANICAL CHARACTERISTICS
RELIABILITY
4
5
6
7
INTERNATIONAL STANDARDS
SAFETY
1)
2)
3)
29
29
27
30
30
30
31
31
31
32
32
32
32
EMC
ENVIRONMENT
8
9
PACKING
1)
2)
DESIGNATION OF LOT MARK
PACKING FORM
PRECAUTIONS
1)
2)
3)
4)
5)
6)
MOUNTING PRECAUTIONS
OPERATING PRECAUTIONS
ELECTROSTATIC DISCHARGE CONTROL
PRECAUTIONS FOR STRONG LIGHT EXPOSURE
STROAGE
HANDLING PRECAUTIONS FOR PROTECTION FILM
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LM240WU8
Liquid Crystal Display
Product Specification
Record of revisions
Revision
No.
Revision Date
Apr. 07. 2011
Page
Description
0.0
-
Preliminary Specifications
Ver. 0.0
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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 sub-
pixels, the LM240WU8’s characteristics provide an excellent flat panel display for office automation products
such as monitors.
RGB
FIG. 1 Block diagram
Source driver circuit
S1
G1
S1920
LVDS
pair #1
Timing
controller
LVDS
pair #2
TFT-LCD Panel
(1920× RGB× 1200 pixels)
CN1
(30pin)
G1200
+12V
VLCD
Power circuit
block
VLed (4ch)
Backlight assembly (White LED)
General features
Active screen size
Outline Dimension
Pixel Pitch
24.1 inches(61.13cm) diagonal (Aspect ratio 16:10)
546.4(H) x 352.0(V) x 14.5(D) mm (Typ.)
0.270 mm x 0.270 mm
Pixel Format
1920 hor. By 1200 Vertical Pixels RGB stripes arrangement
LVDS 2Port
Interface
Color depth
16.7M colors (6bit+A-FRC)
Luminance, white
Viewing Angle (CR>10)
Power Consumption
Weight
300 cd/m2 ( Center 1Point, typ)
R/L 178(Typ.), U/D 178(Typ.)
Total 28.02 Watt (Typ.) ( 5.52Watt @VLCD, 22.5 Watt @Vled)
2,370 g (typ.)
Display operating mode
Surface treatments
Transmissive mode, normally Black
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
Values
Parameter
Symbol
Units
Notes
Min
-0.3
0
Max
+14.0
50
Power Supply Input Voltage
Operating Temperature
Storage Temperature
VLCD
TOP
TST
Vdc
°C
at 25 2°C
-20
10
60
°C
1, 2
Operating Ambient Humidity
Storage Humidity
HOP
HST
90
%RH
%RH
10
90
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. Storage condition is guaranteed under packing condition
3. Storage condition is guaranteed under packing condition
FIG. 2 Temperature and relative humidity
90%
60
60%
50
Storage
Wet Bulb
Temperature [
]
40
40%
Operation
30
20
10
0
0
10%
-20
10
20
30
40
50
]
60
70
80
Dry Bulb Temperature [
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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
Values
Parameter
Symbol
Unit
Notes
Min
Typ
Max
MODULE :
Power Supply Input Voltage
Permissive Power Input Ripple
VLCD
VLCD
11.4
-
12.0
-
12.6
0.4
Vdc
V
3
1
2
1
4
ILCD-MOSAIC
ILCD-WHITE
PLCD
391
553
-
460
650
5.52
-
529
748
6.67
3.0
mA
mA
Watt
A
Power Supply Input Current
Power Consumption
Inrush current
Note :
IRUSH
-
1. The specified current and power consumption are
under the VLCD=12.0V, 25 2°C,fV=60Hz condition
whereas mosaic pattern(8 x 6) is displayed and fV is the frame frequency.
2. The current is specified at the maximum current pattern.
3. Permissive power ripple should be measured under VCC=12.0V, 25°C, fV (frame frequency)=Max
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
power input ripple
White : 255Gray
Black : 0Gray
Full White Pattern
Mosaic Pattern(8 x 6)
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LM240WU8
Liquid Crystal Display
Product Specification
Table 2-2 . LED Bar ELECTRICAL CHARACTERISTICS
Values
Typ.
Parameter
Symbol
Condition
Unit
Notes
Min.
Max.
LED :
1,7
2,7
LED String Current
LED String Voltage
Power Consumption
LED Life Time
Is
Vs
-
46.4
-
110
51.2
22.5
-
120
56.0
24.6
-
mA
V
3,7
PBar
Watt
Hrs
4,6,7
5,7
LED_LT
30,000
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.
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 25
2
C
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LM240WU8
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
Pin No
Symbol
Description
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
1
2
3
4
5
6
7
RXO0-
RXO0+
RXO1-
RXO1+
RXO2-
RXO2+
GND
First Pixel data
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
8
9
RXOC-
RXOC+
RXO3-
RXO3+
RXE0-
RXE0+
GND
RXE1-
RXE1+
GND
RXE2-
RXE2+
RXEC-
RXEC+
RXE3-
RXE3+
GND
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Second Pixel data
NC
NC
PWM
VLCD
Power Supply (12.0V)
Power Supply (12.0V)
Power Supply (12.0V)
VLCD
VLCD
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LM240WU8
Liquid Crystal Display
Product Specification
FIG. 4 Connector diagram
GT103-30S-H23-D (LSM)
#1
#30
1’st signal pairs
2’nd signal pairs
Power(+12V)
Rear view of LCM
Note:
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 VLCD (power input) pins should be connected together.
4. Input Level of LVDS signal is based on the IEA 664 Standard.
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LM240WU8
Liquid Crystal Display
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
1
Symbol
FB1
Description
Notes
Channel1 Current Feedback
Channel2 Current Feedback
LED Power Supply
2
FB2
3
VLED
VLED
FB3
4
LED Power Supply
5
Channel3 Current Feedback
Channel4 Current Feedback
6
FB4
FIG. 5 Backlight connector diagram
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LM240WU8
Liquid Crystal Display
Product Specification
3-3. LVDS characteristics
3-3-1. DC Specification
Description
Symbol
|VID|
VCM
Min
200
0.6
0.3
Max
600
1.8
Unit
mV
V
Notes
LVDS Differential Voltage
LVDS Common mode Voltage
LVDS Input Voltage Range
-
-
-
VIN
2.1
V
3-3-2. AC Specification
Tclk
LVDS Clock
LVDS Data
tSKEW ( Fclk =1 /T
)
clk
1 ) 85MHz>Fclk 65MHz : -350 ~ + 350
2 ) 65MHz>Fclk 25MHz : -600 ~ + 600
tSKEW
Description
Symbol
tSKEW
Min
Max
Unit
ps
Notes
85MHz > Fclk ≥ 65MHz
65MHz > Fclk ≥ 25MHz
- 350 + 350
- 600 + 600
LVDS Clock to Data Skew Margin
tSKEW
ps
LVDS Clock to Clock Skew Margin
(Even to Odd)
tSKEW_EO - 1/7 + 1/7 Tclk
-
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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LM240WU8
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
3-3-3. LVDS Data format
Tclk
Tclk*4/7
Tclk*1/7
Tclk*3/7
RCLK+
MSB R7
R6
OR3
OG4
OB5
OG7
OR2
OG3
OB4
OG6
OR1
OG2
OB3
OR7
OR0
OG0
OB1
DE
X
OR5
OR4
OR3
OG4
OB5
OG7
OR2
OG3
OB4
OG6
OR1
OG2
OB3
OR7
OR0
OG1
OB2
OR6
OG0
OB1
DE
X
OR5
OR4
RXinO0+/-
R5
OG1
OB2
OR6
OB0
VSYNC
OB7
OG5
HSYNC
OB6
OB0
VSYNC
OB7
OG5
R4
RXinO1+/-
RXinO2+/-
R3
HSYNC
R2
R1
OB6
RXinO3+/-
RXinE0+/-
LSB
R0
ER3
EG4
EB5
EG7
ER2
EG3
EB4
EG6
ER1
EG2
EB3
ER7
ER0
EG1
EB2
ER6
EG0
EB1
DE
X
ER5
EB0
ER4
EG5
ER3
EG4
EB5
EG7
ER2
EG3
EB4
EG6
ER1
EG2
EB3
ER7
ER0
EG1
EB2
ER6
EG0
EB1
DE
X
ER5
EB0
ER4
EG5
* ODD = 1st Pixel
EVEN = 2nd Pixel
RXinE1+/-
RXinE2+/-
VSYNC
HSYNC
VSYNC
HSYNC
EB7
EB6
EB7
EB6
RXinE3+/-
Previous(N-1)th Cycle
Current(Nth)Cycle
Next(N+1)th Cycle
< LVDS Data Format >
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LM240WU8
Liquid Crystal Display
Product Specification
Table 5. Required signal assignment for Flat Link(NS:DS90CF383) transmitter
Pin # Pin Name
Require Signal
Power Supply for TTL Input
TTL Input (R7)
Pin # Pin Name
Require Signal
Ground pin for TTL
1
VCC
D5
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
GND
D26
2
TTL Input (DE)
3
D6
TTL Input (R5)
TX CLKIN
PWR DWN
PLL GND
PLL VCC
PLL GND
LVDS GND
TxOUT3
TxOUT3
TX CLKOUT
TX CLKOUT
TX OUT2
TX OUT2
LVDS GND
LVDS VCC
TX OUT1
TX OUT1
TX OUT0
TX OUT0
LVDS GND
D27
TTL Level clock Input
4
D7
TTL Input (G0)
Power Down Input
5
GND
D8
Ground pin for TTL
TTL Input (G1)
Ground pin for PLL
6
Power Supply for PLL
7
D9
TTL Input (G2)
Ground pin for PLL
8
D10
VCC
D11
D12
D13
GND
D14
D15
D16
VCC
D17
D18
D19
GND
D20
D21
D22
D23
VCC
D24
D25
TTL Input (G6)
Ground pin for LVDS
9
Power Supply for TTL Input
TTL Input (G7)
Positive LVDS differential data output 3
Negative LVDS differential data output 3
Positive LVDS differential clock output
Negative LVDS differential clock output
Positive LVDS differential data output 2
Negative LVDS differential data output 2
Ground pin for LVDS
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
TTL Input (G3)
TTL Input (G4)
Ground pin for TTL
TTL Input (G5)
TTL Input (B0)
TTL Input (B6)
Power Supply for LVDS
Power Supply for TTL Input
TTL Input (B7)
Positive LVDS differential data output 1
Negative LVDS differential data output 1
Positive LVDS differential data output 0
Negative LVDS differential data output 0
Ground pin for LVDS
TTL Input (B1)
TTL Input (B2)
Ground pin for TTL Input
TTL Input (B3)
TTL Input (R6)
TTL Input (B4)
D0
TTL Input (R0)
TTL Input (B5)
D1
TTL Input (R1)
TTL Input (RSVD)
Power Supply for TTL Input
TTL Input (HSYNC)
TTL Input (VSYNC)
GND
Ground pin for TTL
D2
TTL Input (R2)
D3
TTL Input (R3)
D4
TTL Input (R4)
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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LM240WU8
Liquid Crystal Display
Product Specification
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
Period
SYMBOL
tCLK
fCLK
tHP
Min
12.82
76
Typ
12.98
77
Max
13.16
78
Unit
ns
Note
Pixel frequency
: Typ. 154MHz
DCLK
Hsync
MHz
Frequency
Period
1036
16
1040
16
1044
16
tCLK
tWH
tVP
Width-Active
Period
1233
58.85
6
1235
59.95
6
1237
61
tHP
Hz
tHP
fV
Vsync Frequency
Width-Active
tWV
tHV
6
960
36
960
40
960
44
Horizontal Valid
tHBP
tHFP
-
Horizontal Back Porch
tCLK
20
24
28
Horizontal Front Porch
Horizontal Blank
Vertical Valid
76
80
84
tWH+ tHBP+ tHFP
Data
Enable
tVV
1200
25
1200
26
1200
27
tVBP
tVFP
-
Vertical Back Porch
Vertical Front Porch
Vertical Blank
tHP
2
3
4
33
35
37
tWV+ tVBP+ tVFP
Note: Hsync period and Hsync width-active should be even number times of tCLK. If the value is odd number
times of tCLK, display control signal can be asynchronous. In order to operate this LCM a Hsync,
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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LM240WU8
Liquid Crystal Display
Product Specification
3-5. Signal timing waveforms
1. DCLK , DE, DATA waveforms
tCLK
Clk
Valid
tad
thud
Invalid
Invalid
Data
tsar
this
DE(Data Enable)
2. Horizontal waveform
th
tHV
DE(Data Enable)
DE
3. Vertical waveform
top
tVV
DE(Data Enable)
DE
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LM240WU8
Liquid Crystal Display
Product Specification
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
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LM240WU8
Liquid Crystal Display
Product Specification
3-7. Power sequence
90%
90%
10%
VLCD
10%
Power Supply For LCD
T2
T5
T7
T1
LED on
Interface Signal (Tx)
Power for BLU
0V
T3
T4
OFF
OFF
Table 8. Power sequence
Values
Parameter
Units
Min
Typ
Max
10
50
-
T1
T2
T3
T4
T5
T7
0.5
0.01
200
200
0.01
1
-
-
-
-
-
-
ms
ms
ms
ms
ms
s
-
50
-
Notes :
1. Please VLCD power on only after connecting interface cable to 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 VLCD 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. VLCD Power dip condition
FIG. 6 Power dip condition
VLCD
VLCD_dip
td
Dip condition
VLCD_dip ≤ VLCD_typ X 0.2, td≤20ms
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LM240WU8
Liquid Crystal Display
Product Specification
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
LCD Module
Optical
Stage(x,y)
Pritchard 880
or equivalent
50cm
Table 9. Optical characteristics
Ta= 25°C, VLCD=12.0V, fV=60Hz, DCLK=154MHz, Is=110mA
Values
Parameter
Contrast Ratio
Symbol
Units
Notes
Min
700
250
75
Typ
1000
300
Max
CR
LWH
δ WHITE
TGTG_AVR
Rx
1
2
3
4
Surface Luminance, white
Luminance Variation
cd/m2
%
Response Time
Gray to Gray
-
14
28
ms
RED
0.640
0.331
0.314
0.618
0.152
0.071
0.313
0.329
140
Ry
GREEN
BLUE
Gx
Color Coordinates
[CIE1931]
Gy
Typ
Typ
-0.03
+0.03
Bx
(By PR650)
By
WHITE
Wx
Wy
Horizontal
Vertical
-
-
-
-
θCST_H
θCST_V
Color Shift
(Avg. ∆u’v’ < 0.02)
Degree
5
6
100
Viewing Angle (CR>10)
General
Horizontal
Vertical
θH
θV
170
178
178
-
-
Degree
%
170
-
δGamma_H
Horizontal
Vertical
-
-
20
20
GSR @ 60dgree
7
8
(Gamma shift rate)
δGamma_V
-
Gray Scale
2.2
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LM240WU8
Liquid Crystal Display
Product Specification
Notes 1. Contrast Ratio(CR) is defined mathematically as : (By PR880)
Surface Luminance with all white pixels
Surface Luminance with allblack pixels
Contrast Ratio =
It is measured at center point(Location P1)
2. Surface luminance(LWH)is luminance value at 5 points average across the LCD surface 50cm from
the surface with all pixels displaying white. For more information see FIG 7. (By PR880)
LWH = = Average[ Lon1,Lon2,Lon3,Lon4,Lon5]
3. The variation in surface luminance , δ WHITE is defined as : (By PR880)
Minimum(LP1,LP2 ,…..LP9)
Maximum (LP1, LP2 ,....LP9)
δWHITE
=
×100
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 (∆u’v’)
4x
9y
∆u'v'= (u'1−u'2 )2 + (v'1−v'2 )2
u'=
v'=
− 2x +12y + 3
− 2x +12y + 3
24
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)
(∆u'v')i
∑
i=1
Avg(∆u'v') =
24
- 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 (By EZ Contrast)
- GSR (δ Gamma ) is defined as :
View angle Gamma Value (Up, Down, Reft, Light 60 Degree)
Center Gamma Value (0 Degree)
GSR = 1−
×100
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LM240WU8
Liquid Crystal Display
Product Specification
Notes 8. Gray scale specification
Gamma Value is approximately 2.2. For more information see Table 11.
Measuring point for surface luminance & measuring point for luminance variation.
H
H/2
H/10
●
●
●
●
●
●
P2
P3
P1
P8
P4
P6
●
●
P5
●
H : 518.4 mm
V : 324.0 mm
P9
P7
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
- TGTG_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
Rising Time
G127
Gray to Gray
G255
G191
G63
G0
G255
G191
G127
G63
Falling Time
G0
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Product Specification
Color shift is defined as the following test pattern and color.
25% Box size
FIG. 9 Color Shift Test Pattern
Average RGB values in Bruce RGB for Macbeth Chart
Dark skin
395
Light skin
827
Blue sky
343
Foliage
311
Blue flower
Bluish green
R
G
B
519
475
459
799
227
571
451
411
183
495
647
187
743
715
Orange
879
Purplish blue
227
Moderate red
847
Purple
307
Yellow green
643
Orange yellow
923
R
G
B
419
279
271
159
775
651
99
699
351
347
235
119
Blue
107
Green
291
Red
Yellow
967
Magenta
831
cyan
143
R
G
B
791
131
595
111
851
251
507
583
263
151
147
607
691
White
963
Neutral 8
827
Neutral 6.5
623
Neutral 5
443
Neutral 3.5
255
black
91
R
G
B
963
827
623
443
255
91
963
827
623
443
255
91
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LM240WU8
Liquid Crystal Display
Product Specification
Dimension of viewing angle range.
Normal
E
Y
φ
°
= 90 , Up
φ
°
= 180 , Left
θ
φ
φ
°
= 0 , Right
φ
°
= 270 , Down
FIG. 10 Viewing angle
FIG. 11 Sample Luminance vs. gray scale
(using a 256 bit gray scale)
FIG. 12 Sample Log-log plot of luminance
vs. gray scale
log(L − Lb ) = r log(V ) + log(a)
L = aV r + Lb
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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LM240WU8
Liquid Crystal Display
Product Specification
Table 11. Gray Scale Specification
Gray Level
0
Relative Luminance [%] (Typ.)
0.1
1.2
31
63
4.7
95
11.7
21.2
35.2
53.0
75.4
100
127
159
191
223
255
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LM240WU8
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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
352.0mm
14.5 mm
522.4mm
328.0mm
518.4mm
324.0mm
Outline dimension
Vertical
Depth
Horizontal
Bezel area
Vertical
Horizontal
Active display area
Vertical
Weight
2,370 g (Typ.), 2,490 g (Max.)
Hard coating(3H)
Anti-Glare treatment of the front polarizer
Surface treatment
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
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Product Specification
< FRONT VIEW >
PAD thickness : 0.2mm (+0.05/0)
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Product Specification
< REAR VIEW >
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Product Specification
6. Reliability
Table 13. Environment test conditions
No
1
Test Item
Condition
High temperature storage test
Low temperature storage test
High temperature operation test
Low temperature operation test
Ta= 60°C 240h
Ta= -20°C 240h
2
3
Ta= 50°C 50%RH 240h
Ta= 0°C 240h
4
Wave form : random
Vibration level : 1.0G RMS
Bandwidth : 10-300Hz
Duration : X,Y,Z, 10 min
Vibration test
(non-operating)
5
6
One time each direction
Shock level : 100G
Waveform : half sine wave, 2ms
Shock test
(non-operating)
Direction : X, Y,
Z
One time each direction
7
8
Humidity condition Operation
Ta= 40 °C ,90%RH
Altitude
storage / shipment
0 - 40,000 feet(12192m)
Max 70%RH , Ta=40
Maximum Storage Humidity for
4 corner light leakage Mura.
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.
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Product Specification
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)
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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LM240WU8
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Product Specification
8. Packing
8-1. Designation of lot mark
a) Lot mark
A
B
C
D
E
F
G
H
I
J
K
L
M
A,B,C : Size (Inch)
E : Month
D : Year
F ~ M : Serial No.
Note:
1. Year
Year
Mark
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
A
B
C
D
E
F
G
H
J
K
2. Month
Month
Mark
Jan
1
Feb
2
Mar
3
Apr
4
May
5
Jun
6
Jul
7
Aug
8
Sep
9
Oct
A
Nov
B
Dec
C
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
b) Box size : 408mm X 355mm X 600mm
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Product Specification
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.
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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Product Specification
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.
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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