Page 1
( ● ) Preliminary Specification
( ● ) Final Specification
LM240WU4
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
24.0” WUXGA TFT LCDTitle
BUYER
MODEL
www.jxlcd.com
www.jxlcd.com
APPROVED BY
/
/
/
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LM240WU4
SUFFIX SLA1
*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. 21 . 2008
MNT Products Engineering Dept.
LG. Philips LCD Co., Ltd
1/ 34
Page 2
LM240WU4
4
OPTICAL SFECIFICATIONS
72EMC
29
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
COVER
CONTENTS
RECORD OF REVISIONS
1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTREISTICS
3-2 INTERFACE CONNECTIONS
3-3 SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING WAVEFORMS
3-5 COLOR INPUT DATA REFERNECE
3-6 POWER SEQUENCE
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3-7 POWER SEQUENCE FOR INVERTER
5 MECHANICAL CHARACTERISTICS
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1
2
3
4
5
6
6
8
14
15
16
17
18
19
25
6 RELIABLITY
7 INTERNATIONAL STANDARDS
7-1 SAFETY
-
8PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
8-3 PALLET FORM 32
9 PRECAUTIONS 33
Ver. 1.0 Apr. 21 . 2008
28
29
29
30
30
31
2/ 34
Page 3
Product Specification
18
(
)
31
Updated the Packing Form
RECORD OF REVISIONS
LM240WU4
Liquid Crystal Display
Revision
No
0.0 Oct.19. 2007 - First Draft(Preliminary)
0.1 Dec. 20. 2007 4,6,25 TBD is update
1.0 Apr. 21. 2008 4 Update the Power Consumption
Revision Date Page Description
Change the Inverter Power Sequence
T1 Min 1→20, T2 Min 200→500
19
26,27
7 Update the Inverter Input Current, Power
8
13
19 Update the Chromaticity
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26, 27
Change the Min CR (600→700), Tr/Tf (TBD/TBD→6.0/7.0)
Update the Mechanical Drawing (Tilt 1.0→1.4)
: Inverter Input CNT is moved 4mm inside
Change the Inverter Vbr Min Vlotage (0V→0.3V)
Change the T2 Refer page (page 14 → page 17)
Change the Inverter Vbr Min Vlotage (0V→0.3V)
Updated the Mechanical Drawing
Ver. 1.0 Apr. 21 . 2008
3/ 34
Page 4
LM240WU4
LM
240WU4isa
Color
Active
Matrix
Liquid
Crystal
Display
withanintegral
Cold
Cathode
Fluorescent
high
high
T
Controller
(H)
)
+24.0V
() () () (yp)
Power Consumption
Total
82
Watt (Typ.) ( 7.02 Watt
@V
LCD
8Watt@V
)
Liquid Crystal Display
Product Specification
1. General Description
Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive type display operating in the normally black mode. It has a 24inch diagonally measured
active display area with WUXGA resolution (1200 vertical by 1920 horizontal pixel array)
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.
Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus, presenting a palette of more than 16,7M(True) colors.
It has been designed to apply the 8Bit 2 port LVDS interface.
It is intended to support displays where high brightness, super wide viewing angle,
color saturation, and
color are important.
RGB
LVDS
2port
+12.0V
GND
CN1
(30pin)
+12.0V
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CN2
(14Pin)
Timing
Power Circuit
Block
Inverter
Block
2pin x 7CNs (High)
Gate
Driver Circuit
General Features
Active Screen Size 24.1 inches(61.32cm) diagonal
Outline Dimension 546.4
Pixel Pitch 0.270 mm x 0.270 mm
x 352.0(V) x 40.3(D) mm(Typ.
Source Driver Circuit
S1 S1920
G1
FT - LCD Panel
(1920 × RGB × 1200 pixels)
G1200
Back light Assembly
(U-Shape 7CCFL)
Pixel Format 1920 horiz. By 1200 vert. Pixels RGB stripes arrangement
Color Depth 8-bit, 16,777,216 colors
Luminance, White 400 cd/m
Viewing Angle(CR>10) View Angle Free (R/L 178(Typ.), U/D 178(Typ.))
Weight 2790 g (typ.)
Display Operating Mode Transmissive mode, normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer
Ver. 1.0 Apr. 21 . 2008
2
( Center 1 points)
71.
, 64.
DDB
4/ 34
Page 5
Product Specification
The following
Wet bulb temperature should be 39
Max, and no condensation of water
0
2. Absolute Maximum Ratings
are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. ABSOLUTE MAXIMUM RATINGS
LM240WU4
Liquid Crystal Display
Parameter Symbol
Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
Note : 1. Temperature and relative humidity range are shown in the figure below.
Note : 2. Maximum Storage Humidity is up to 40℃, 70% RH only for 4 corner light leakage Mura.
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Wet Bulb
Temperature [C]
20
10
VLCD -0.3 14 Vdc at 25 ± 2°C
TOP 050
TST -20 60
HOP 10 90 %RH
HST 10 90 %RH
C
50
40
30
Values
Min Max
°
90%
60
60%
40%
10%
Units Notes
°C
°C
.
Storage
Operation
Humidity [(%)RH]
1, 2
Ver. 1.0 Apr. 21 . 2008
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [C]
5/ 34
Page 6
LM240WU4
3-1. El
Parameter
Symbol
Unit
Notes
time, we recommend the bandwidth configuration of oscilloscope is to be under 20Mhz
Liquid Crystal Display
Product Specification
3. Electrical Specifications
ectrical Characteristics
It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and
liquid crystal. The second input power for the CCFL, is typically generated by an inverter. The inverter is an
external unit to the LCDs.
Table 2-1. ELECTRICAL CHARACTERISTICS
Values
Min Typ Max
MODULE :
Power Supply Input Voltage V
Permissive Power Input Ripple V
Power Supply Input Current I
Power Consumption
Rush current IRUSH --3.0A4
Note :
1. Permissive power ripple should be measured under V
2. The specified current and power consumption are under the V
whereas mosaic pattern(8 x 6) is displayed and f
3. The current is specified at the maximum current pattern.
4. The duration of rush current is about 2ms and rising time of power Input is 1ms(min.).
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LCD 11.4 12.0 12.6 Vdc
RF 400 mVp-p 1
LCD
PLCD TYP - 7.02 8.07 Watt 2
PLCD MAX - 9.18 10.56 Watt 2
- 585 673 mA 2
- 765 880 mA 3
=12.0V, 25 ± 2°C,fV=60Hz condition and At that
LCD
=12.0V, 25 ± 2°C,fV=60Hz condition
is the frame frequency.
V
LCD
.
White Pattern
< Permissive Power Input Ripple (V
Ver. 1.0 Apr. 21 . 2008
=12.0V, 25 ± 2°C,f
LCD
Black Pattern
=60Hz) >
V
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Page 7
Typical current pattern
(White : 255Gray, Black : 0Gray)
p
value at the typical lamp current on condition of continuous operating at 25
±
2
C
LM240WU4
Liquid Crystal Display
Product Specification
Maximum current pattern
Mosaic Pattern(8 x 6)
< Power consumption (V
Table 2-2. INVERTER ELECTRICAL CHARACTERISTICS
Parameter Symbol Condition
Inverter :
Input Voltage V
Input Current I
Input Power P
B/L on/off control V
Brightness Adj V
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LAMP :
Life time
DDB
B
ON/OFF
BR
V
= 3.3V
VBR= 3.3V
Lamp ON = High
Lamp OFF =Low
=12.0V, 25 ± 2°C,f
LCD
White Pattern
=60Hz) >
V
Values
Min. Typ. Max.
22 24.0 26 V 1
- 2.7 3.2 A2
- 64.8 84.5 Watt 2
2.0 - 5.0 V
0.0 - 0.8 V
0.3 -3.3V3
40,000 Hrs 4
Unit Notes
Notes :
1. The input voltage ripple is limited below 400mVp-p.
2. The specified current and power consumption are under the typical supply Input voltage, 24V.
3. Dimming Start voltage will be set at 3.2V±3%(0.096V) considering IC and components deviation.
4. The life is determined as the time at which luminance of the lamp is 50% compared to that of initial
5. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately
30min in a dark environment at 25 °C± 2°C.
6. In case of the difference in measured values due to the difference
of measuring device was found, correlated value will be used after discussions between both parties.
Ver. 1.0 Apr. 21 . 2008
°
.
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Page 8
Liquid Crystal Display
ypy
p
11
FR3P
Plus signal of odd channel 3 (LVDS)
26
OPEN
NC
Product Specification
3-2. Interface Connections
3-2-1. LCD Module
-LCD Connector(CN1). : KDF71G-30S-1H (Manufactured by HIROSE) or Equivalent
ISL100-L30B-C23(UJU), GT103-30S-H23 (LS cable)
- Mating Connector : FI-XC30C2L (Manufactured by JAE) or Equivalent
Table 3 MODULE CONNECTOR(CN1) PIN CONFIGURATION
No Symbol Description No Symbol Description
LM240WU4
1FR0M
2FR0P
3FR1M
4FR1P
5FR2M
6FR2P
7 GND
8FCLKINM
9FCLKINP
10 FR3M
12 SR0M
13 SR0P
14 GND
15 SR1M
Minus signal of odd channel 0 (LVDS)
Plus signal of odd channel 0 (LVDS)
Minus signal of odd channel 1 (LVDS)
Plus signal of odd channel 1 (LVDS)
Minus signal of odd channel 2 (LVDS)
Plus signal of odd channel 2 (LVDS)
Ground
Minus signal of odd clock channel (LVDS)
Plus signal of odd clock channel (LVDS)
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Minus signal of odd channel 3 (LVDS)
Minus signal of even channel 0 (LVDS)
Plus signal of even channel 0 (LVDS)
Ground
Minus signal of even channel 1 (LVDS)
16 SR1P
17 GND
18 SR2M
19 SR2P
20 SCLKINM
21 SCLKINP
22 SR3M
23 SR3P
24 GND
25 OPEN
27 DCR_OUT
ODC on/off
28
29 VLCD
30 VLCD
Plus signal of even channel 1 (LVDS)
Ground
Minus signal of even channel 2 (LVDS)
Plus signal of even channel 2 (LVDS)
Minus signal of even clock channel (LVDS)
Plus signal of even clock channel (LVDS)
Minus signal of even channel 3 (LVDS)
Plus signal of even channel 3 (LVDS)
Ground
NC
Dynamic C/R output
ODC_ON_OFF_Control [* note 4 ]
L : ODC_ON , H : ODC_OFF
Default : ODC_ON ( No connection)
Power Supply +12.0V
Power Supply +12.0V
Note: 1. All GND(ground) pins should be connected together and to Vss which should also be connected to
the LCD’s metal frame.
2. All V
Ver. 1.0 Apr. 21 . 2008
LCD (power input) pins should be connected together.
3. Input Level of LVDS signal is based on the IEA 664 Standard.
4. In ODC off Case , When Power Start up, Sequence must keep as : V
* T2 : Time interval between V
LCD > T2 > ODC_OFF (‘H’)
LCD and RGB data, refer to page 17.
User Connector Diagram
1
30
#1 #30
Rear view of LCM
KDF71G-30S-1H(HIROSE)
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Page 9
LM240WU4
16
TTL Input (B6)
D1644Power Supply for LVDS
LVDS V
CC
T
T
Liquid Crystal Display
Product Specification
Table 4. REQUIRED SIGNAL ASSIGNMENT FOR Flat Link (TI:SN75LVDS83) 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
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 3
10 TTL Input (G7)D11 38 Negative LVDS differential data output 3
11 TTL Input (G3)D12 39 Positive LVDS differential clock output
12 TTL Input (G4)D13 40 Negative LVDS differential clock output
13 Ground pin for TTLGND 41 Positive LVDS differential data output 2
14 TTL Input (G5)D14 42 Negative LVDS differential data output 2
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15 TTL Input (B0)D15 43 Ground pin for LVDSLVDS GND
17 Power Supply for TTL InputVCC 45 Positive LVDS differential data output 1
18 TTL Input (B7)D17
19 TTL Input (B1)D18
20 TTL Input (B2)D19
22
23 TTL Input (B4)D21
24 TTL Input (B5)D22
25 TTL Input (RSVD)D23
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46 Negative LVDS differential data output 1
47 Positive LVDS differential data output 0
48 Negative LVDS differential data output 0
49 Ground pin for LVDSLVDS GND21 Ground pin for TTL InputGND
TL Input (B3)D20
50
51 TTL Input (R0)D0
52 TTL Input (R1)D1
53 Ground pin for TTLGND
TxOUT3＋
TxOUT3－
TXCLKOUT＋
TXCLKOUT－
TXOUT2＋
TXOUT2－
TXOUT1＋
TXOUT1－
TXOUT0＋
TXOUT0－
TL Input (R6)D27
26 Power Supply for TTL InputVCC 54 TTL Input (R2)D2
Notes : Refer to LVDS Transmitter Data Sheet for detail descriptions.
Ver. 1.0 Apr. 21 . 2008
55 TTL Input (R3)D327 TTL Input (HSYNC)D24
56 TTL Input (R4)D428 TTL Input (VSYNC)D25
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Page 10
LVDS Input characteristics
F
V
-±3%-
1. DC Specification
LM240WU4
Liquid Crystal Display
Product Specification
Description Symbol Min Max Unit Notes
LVDS Differential Voltage |VID| 100 600 mV -
LVDS Common mode Voltage V
LVDS Input Voltage Range V
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2. AC Specification
LVDS Clock to Data Skew Margin
LVDS Clock to Clock Skew Margin (Even to Odd) t
Maximum deviation
of input clock frequency during SSC
Maximum modulation frequency
of input clock during SSC
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Description Symbol Min Max Unit Notes
CM
IN
t
SKEW
t
SKEW
SKEW_EO
DE
F
MOD
0.6 1.8 V -
0.3 2.1 V -
- 400 + 400 ps 85MHz > Fclk ≥ 65MHz
- 600 + 600 ps 65MHz > Fclk ≥ 25MHz
-1/7 + 1/7 T
- 200 KHz -
clk
-
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Page 11
Freq.
F
)
F
max
F
center
Product Specification
< Clock skew margin between channel >
LM240WU4
Liquid Crystal Display
F
* F
center
DEV
min
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3. Data Format
1) LVDS 2 Port
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1
F
MOD
< Spread Spectrum >
Time
< LVDS Data Format >
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Page 12
2) LVDS 1 Port
RCLK+
LM240WU4
Liquid Crystal Display
Product Specification
RA+/-
RB+/-
RC+/-
RD+/-
R3 R2
G4 G3
B5 B4
G7 G6
Previous (N-1)th Cycle Next(N+1)th Cycle
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R1 R0
G2 G1
B3 B2
R7 R6
G0 R5 R4 R3 R2 R1 R0
B1 B0 G5 G4 G3 G2 G1
DE VSYNC HSYNC B5 B4 B3 B2
X B7 B6 G7 G6 R7 R6
Current (Nth) Cycle
G0
B1
DE
VSYNC HSYNC
X
R5 R4
B0 G5
B7 B6
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Page 13
Liquid Crystal Display
1
VBLP
0V
d
13
VBRBrightness Adjustable Voltage
(Max :3.3V / Min :
0.3V
)
Product Specification
3-2-2. Backlight Interface
-Inverter Connector : S14B-PHA-SM3 Side entry type (Manufactured by JST) or Equivalent
- Mating Connector : PHR-14(Manufactured by JST) or Equivalent
Table 4. INVERTER CONNECTOR PIN CONFIGULATION
Pin No Symbol Description Remarks
ower Supply +24.
2VBL Power Supply +24.0V
LM240WU4
3V
4V
5V
6 GND Power Ground
7 GND Power Groun
8 GND Power Ground Note 1
9 GND Power Ground
10 GND Power Ground
11 OPEN NC
12 V
14 OPEN NC
Notes : 1. GND is connected to the LCD’s metal frame.
BL Power Supply +24.0V
BL Power Supply +24.0V
BL Power Supply +24.0V
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ON Backlight On/off Signal (On :2.0V~5V/Off :0.0~0.8V)
Rear view of LCM
PCB
Ver. 1.0 Apr. 21 . 2008
14
…
1
S14B-PHA-SM3
(JST : Japan Solderless Terminal Co.,Ltd.)
…
13 / 34
Page 14
LM240WU4
DCLK
Liquid Crystal Display
Product Specification
3-3. Signal Timing Specifications
This is signal timing required at the input of the TMDS transmitter. All of the interface signal timing should be
satisfied with the following specifications for it’s proper operation.
Table 5. TIMING TABLE (VESA COORDINATED VIDEO TIMING)
ITEM SYMBOL Min Typ Max Unit Note
Period
Frequency
Period
Hsync
Width-Active
Period
Vsync Frequency
Width-Active
Horizontal Valid
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Horizontal Back Porch
Horizontal Front Porch
Data
Enable
Horizontal Blank
Vertical Valid
tCLK 12.82 12.98 13.16 ns
fCLK 76 77 78 MHz
tHP 1036 1040 1044
tCLK
tWH 16 16 16
tVP 1233 1235 1237 tHP
fV 58.85 59.95 61 Hz
tWV 666tHP
tHV 960 960 960
tHBP 36 40 44
tHFP 20 24 28
-768084 tWH+ tHBP+ tHFP
tVV 1200 1200 1200
tCLK
Pixel frequency
: Typ. 154MHz
Vertical Back Porch
Vertical Front Porch
Vertical Blank
Note: Hsync period and Hsync width-active should be even number times of tCLK. If the value is odd number
times of t
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
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
4. The polarity of Hsync, Vsync is not restricted.
Ver. 1.0 Apr. 21 . 2008
CLK, display control signal can be asynchronous. In order to operate this LCM a Hsync,
refresh rates.
number(8).
tVBP 25 26 27
tVFP 234
-
33 35 37 tWV+ tVBP+ tVFP
tHP
14 / 34
Page 15
3-4. Signal Timing Waveforms
INVALID
t
VP
LM240WU4
Liquid Crystal Display
Product Specification
Hsync, Vsync, DE, DATA
t
CLK
Dclk
INVALID
DATA
DE(Data Enable)
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Hsync
t
WH
0.5VDD
0.7VDD
0.3VDD
VALID
Data are latched at the falling edge of DCLK
t
HP
t
HBP
DE(Data Enable)
t
WV
Vsync
t
VBP
DE(Data Enable)
Ver. 1.0 Apr. 21 . 2008
t
HV
t
VV
t
t
HFP
VFP
15 / 34
Page 16
LM240WU4
Color
a
RED (001)
00000001000000000000000
0
Liquid Crystal Display
Product Specification
3-5. Color Input Data Reference
The Brightness of each primary color(red,green,blue) is based on the 8-bit 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 6. COLOR DATA REFERENCE
Input Color Data
RED GREEN BLUE
MSB LSB MSB LSB 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
Black 000000000000 000000000000
Red (255) 111111110 00 0000000000000
Green (255) 000000001111111100000000
Basic
Color
RED
GREEN
Blue (255) 000000000000000011111111
Cyan 000000001111111111111111
Magenta 111111110000000011111111
Yellow 11111111111 1111100000000
White 111111111 11 1111111111111
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RED (000) Dark 000000000000000000000000
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... ... ... ...
RED (254) 111111100000000000000000
RED (255) 111111110000000000000000
GREEN (000) Dark 000000000000000000000000
GREEN (001) 000000000000000100000000
... ... ... ...
GREEN (254) 000000001111111000000000
GREEN (255) 000000001111111100000000
BLUE (000) Dark 000000000 000000000000000
BLUE (001) 000000000000 000000000001
BLUE
BLUE (254) 000000000000 000011111110
BLUE (255) 000000000000 000011111111
Ver. 1.0 Apr. 21 . 2008
... ... ... ...
16 / 34
Page 17
3-6. Power Sequence
T2T5T7
T
LM240WU4
Liquid Crystal Display
Product Specification
V
LCD
90%
90%
Power Supply, V
Interface Signal, V
(Digital RGB signal,
SCDT ,V
Clock to PanelLink
Transmitter)
Power Supply for Backlight
Inverter
Table 7. POWER SEQUENCE
sync
LCD
i
, H
, DE,
sync
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Parameter
0V
0V
10%
T1
Valid Data
T3
LAMP ONLAMP OFF LAMP OFF
Values
Min Typ Max
T6
T4
10%
Units
T1 0.5 - 10 ms
20.01-50ms
T3 500 - - ms
T4 200 - - ms
T5 0.01 - 50 ms
T7 500 - ms
Notes : 1. Please avoid floating state of interface signal at invalid period.
2. When the interface signal is invalid, be sure to pull down the power supply for LCD V
3. Lamp power must be turn on after power supply for LCD and interface signal are valid.
Ver. 1.0 Apr. 21 . 2008
to 0V.
LCD
17 / 34
Page 18
Product Specification
Vin_typ
T350ms
3-7. Power Sequence for Inverter
V
LCD
90%
LM240WU4
Liquid Crystal Display
Power Supply, V
Lamp ON/OFF
Lamp Dimmer
Vin Dipping
BL
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0V
10%
T1
T4
T2
LAMP ONLAMP OFF
T3
T5
Vin_dip ≤ Vin_typ × 0.2
0V
Table 8. POWER SEQUENCE
Parameter
Min Typ Max
T1 20 - ms
T2 500 - - ms
--
T4 500 - - ms
T5 - - 10 ms
Ver. 1.0 Apr. 21 . 2008
Values
Units
18 / 34
Page 19
4. Optical Specifications
Optical ch
‘ON’ f
Table 9
OPTICAL CHARACTERISTICS
(Ta=25
°
C, V
f
60Hz Dclk=154MHz, V
3V)
Decay Time
TrD7.012ms
4
General
Degree
7
LM240WU4
Liquid Crystal Display
Product Specification
aracteristics are determined after the unit has been
or approximately 30 minutes
in a dark environment at 25±2°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 ° and aperture 1 degree.
FIG. 1 presents additional information concerning the measurement equipment and method.
Pritchard 880 or
equivalent
Optical Stage(x,y)
LCD Module
50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method
.
Parameter Symbol
Contrast Ratio CR 700 1000 1
Surface Luminance, white L
Luminance Variation
Response Time
Color Coordinates
[CIE1931]
Color Shift
Viewing Angle (CR>10)
Effective
Gray Scale 2.2 9
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Horizontal
Vertical
Horizontal
Vertical
Rise Time Tr
Gray to Gray
RED Rx
GREEN Gx
BLUE Bx
WHITE Wx 0.313
Horizontal
Vertical
WH
δ
WHITE
R
T
GTG_AVR
T
GTG_MAX
Ry
Gy
By
Wy 0.329
θ
CST_H
θ
CST_V
θ
H
θ
V
θ
GMA_H
θ
GMA_V
Min Typ Max
320 400 cd/m
75 % 3
-6.012ms4
-
-5-ms5
--12ms5
Typ
-0.03
- 178 -
- 178 -
170 178 -
170 178 -
=12.0V,
LCD
Values
0.680
0.310
0.206
0.693
0.151
0.055
178 -
178 -
=
V
Typ
+0.03
=3.
BR
Units Notes
2
Degree 6
Degree 8
2
Ver. 1.0 Apr. 21 . 2008
19 / 34
Page 20
Product Specification
() y
Color difference (
Δuv)
hift
l
Notes 1. Contrast Ratio(CR) is defined mathematically as :
RatioContrast =
It is measured at center point(Location P1)
LM240WU4
Liquid Crystal Display
pixelswhiteallwithLuminanceSurface
pixels black all with Luminance Surface
2. Surface luminance(L
the surface with all pixels displaying white. For more information see FIG 2.
L
= = Average[ Lon1,Lon2,Lon3,Lon4,Lon5]
WH
3. The variation in surface luminance , δ WHITE is defined as :
δ
WHITE
Where L1 to L9 are the luminance with all pixels displaying white at 9 locations.
For more information see FIG 2.
4. Response time is the time required for the display to transition from black to white (Rise Time,
Tr
) and from white to black (Decay Time, TrD). For additional information see FIG 3.
R
5. Gray to gray response time is the time required for the display to transition from gray to gray.
For additional information see Table 10.
6. Color shift is the angle at which the color difference is lower than 0.04.
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For more information see FIG 4.
-
'
=
u
WH)is luminance value at 5 points average across the LCD surface 50cm from
=
’
’
4
x
3122
++−
yx
…
'
=
v
)L .. ,L,Minimum(L
P9P2P1
100
×
)L .... ,L ,(L Maximum
P9P2P1
9
y
3122
++−
yx
2
21
- Pattern size : 25% Box size
-Viewing angle direction of color s
7. 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 5.
8. Effective viewing angle is the angle at which the gamma shift of gray scale is lower than 0.3.
For more information see FIG 6 and FIG 7.
9. Gray scale specification
Gamma Value is approximately 2.2. For more information see Table 11.
Ver. 1.0 Apr. 21 . 2008
2
)''()''('' vvuuvu −+−=Δ
21
: Horizontal, Vertica
u’1, v’1 : u’v’ value at viewing angle direction
u’2, v’2 : u’v’ value at front (θ=0)
20 / 34
Page 21
Product Specification
gp gp
V
“
Optical
Measuring point for surface luminance & measuring point for luminance variation.
H
LM240WU4
Liquid Crystal Display
H/2
●
●
P2
P5
/2
V
●
V/10
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The response time is defined as the following figure and shall be measured by switching the input signal for
black” and “white”.
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P7
FIG. 2 Measure Point for Luminance
P3
●
P1
●
P8
●●
●
●
H/10
P4
P6
P9
H : 518.4 mm
V : 324.0 mm
TrR
100
90
Response
10
0
Ver. 1.0 Apr. 21 . 2008
black
FIG. 3 Response Time
white
TrD
black
21 / 34
Page 22
LM240WU4
T
gy gy p gg y g
FIG. 4 Color Shift Test Pattern
R
Liquid Crystal Display
Product Specification
he 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”.
-T
GTG_MAX is the max time at rising time or falling time for “Gray To Gray”.
Table 10. Gray to gray response time table
Gray to Gray
G255 G191 G127 G63 G0
G255
G191
Rising Time
Falling Time
Color shift is defined as the following test pattern and color.
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Average RGB values in Bruce RGB for Macbeth Chart
Dark skin Light skin Blue sky Foliage Blue flower Bluish green
R 98 206 85 77 129 114
G 56 142 112 102 118 199
B 45 123 161 46 185 178
Orange Purplish blue Moderate red Purple Yellow green Orange yellow
219 56 211 76 160 230
G 104 69 67 39 193 162
B 24 174 87 86 58 29
Blue Green Red Yellow Magenta Cyan
R 26 72 197 241 207 35
G 32 148 27 212 62 126
B 145 65 37 36 151 172
White Neutral 8 Neutral 6.5 Neutral 5 Neutral 3.5 Black
R 240 206 155 110 63 22
G 240 206 155 110 63 22
B 240 206 155 110 63 22
G127
G63
G0
25% Box size
Ver. 1.0 Apr. 21 . 2008
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Page 23
Dimension of viewing angle range.
gg g
φ
FIG. 5 Viewing angle
=
−
FIG. 6 Sample Luminance vs. gray scale
FIG. 7 Sample Log
log plot of luminance
LM240WU4
Liquid Crystal Display
Product Specification
Normal
φ
= 180°, Left
φ
= 270°, Down
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θ
E
Y
φ
= 90°, Up
φ
= 0°, Right
(using a 256 bit gray scale)
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. 7)
Ver. 1.0 Apr. 21 . 2008
vs. gray scale
r
LaVL +=
b
-
b
+
)log()log()log( aVrLL
23 / 34
Page 24
LM240WU4
Table 11. Gray Scale Specification
Liquid Crystal Display
Product Specification
Gray Level Relative Luminance [%] (Typ.)
00.13
31 1.2
63 4.7
95 11.7
127 21.2
159 35.2
191 53.0
223 75.4
255 100
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Ver. 1.0 Apr. 21 . 2008
24 / 34
Page 25
5. Mechanical Characteristics
Th
dditi
fig
LM240WU4
Liquid Crystal Display
Product Specification
e contents provide general mechanical characteristics. In a
mechanical drawing of the LCD.
Horizontal 546.4mm
Outline Dimension
Bezel Area
Active Display Area
Weight 2790 g(Typ) / 2930 g(Max)
Surface Treatment
Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
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Vertical 352.0mm
Depth 40.3mm
Horizontal 522.4mm
Vertical 328.0mm
Horizontal 518.4mm
Vertical 324.0mm
Hard coating(3H)
Anti-glare treatment of the front polarizer
on the
ures in the next page are detailed
Ver. 1.0 Apr. 21 . 2008
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Page 26
<FRONT VIEW>
LM240WU4
Liquid Crystal Display
Product Specification
www.jxlcd.com
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Ver. 1.0 Apr. 21 . 2008
26 / 34
Page 27
<REAR VIEW>
LM240WU4
Liquid Crystal Display
Product Specification
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Ver. 1.0 Apr. 21 . 2008
27 / 34
Page 28
6. Reliability
Envi
diti
3
High t
t
T
50
°
C
50%RH
240h
8
LM240WU4
Liquid Crystal Display
Product Specification
ronment test con
No Test Item Condition
1 High temperature storage test
2 Low temperature storage test
emperature operation tes
4 Low temperature operation test
5
6
7 Humidity condition Operation
Vibration test
(non-operating)
Shock test
(non-operating)
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Altitude
on
Ta= 60°C 240h
Ta= -20°C 240h
a=
Ta= 0°C 240h
Wave form : random
Vibration level : 1.0G RMS
Bandwidth : 10-300Hz
Duration : X,Y,Z, 10 min
Shock level : 100G
Waveform : half sine wave, 2ms
Direction : ±X, ±Y, ±Z
Ta= 40 °C ,90%RH
storage / shipment 0 - 40,000 feet(12192m)
One time each direction
One time each direction
Ver. 1.0 Apr. 21 . 2008
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Page 29
LM240WU4
7-1. Safety
E
1992
Liquid Crystal Display
Product Specification
7. International Standards
a) UL 60950-1:2003, First Edition, Underwriters Laboratories, Inc.,
Standard for Safety of Information Technology Equipment.
b) CAN/CSA C22.2, No. 60950-1-03 1
Standard for Safety of Information Technology Equipment.
c) EN 60950-1:2001, First Edition,
European Committee for Electrotechnical Standardization(CENELEC)
uropean Standard for Safety of Information Technology Equipment.
7-2. EMC
a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and
Electrical Equipment in the Range of 9kHZ to 40GHz. “American National Standards Institute(ANSI),
st
Ed. April 1, 2003, Canadian Standards Association,
b) C.I.S.P.R “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ International Special Committee on Radio Interference.
c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment.“ European Committee for Electrotechnical Standardization.(CENELEC), 1998
( Including A1: 2000 )
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Ver. 1.0 Apr. 21 . 2008
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Page 30
8. Packing
2. MONTH
T
jgp
8-1. Designation of Lot Mark
a) Lot Mark
ABCDEFGHI JKLM
A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.
Note
1. YEAR
LM240WU4
Liquid Crystal Display
Product Specification
Year
Mark
Month
Mark
b) Location of Lot Mark
www.jxlcd.com
Serial No. is printed on the label. The label is attached to the backside of the LCD module.
www.jxlcd.com
his is subject to change without prior notice.
200320022001
321
200452005
4
Apr5May
4
2006720078200892009
6
Jun
6
Jul8Aug9Sep
7
2010
0
Oct
A
Nov
B
DecMarFebJan
C321
Ver. 1.0 Apr. 21 . 2008
30 / 34
Page 31
8-2. Packing Form
a) Package quantity in one box : 5EA
b) Box Size : 436 X 346 X 628
LM240WU4
Liquid Crystal Display
Product Specification
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Page 32
8-3. Pallet Form
T
LM240WU4
Liquid Crystal Display
Product Specification
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NO. DESCRIPTION MATERIAL
1 PACKING ASS’Y
2 PALLET Paper_1030X870X130
3 ANGLE, PACKING SWR4
4 LABEL YUPO PAPER
5
6BAND PP
7 BAND, CLIP CLIP 18MM
APE OPP
Ver. 1.0 Apr. 21 . 2008
32 / 34
Page 33
LM240WU4
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer
And in lower temperature, response time(required time that brightness is stable after turned on) becomes
i
Liquid Crystal Display
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.
.
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.
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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.)
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’t be operated
ts full characteristics perfectly.
(8) A screw which is fastened up the steels should be a machine screw.
(if not, it causes metallic foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.
Ver. 1.0 Apr. 21 . 2008
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Page 34
LM240WU4
(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized
Liquid Crystal Display
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 ionblown 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.
please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normalhexane.
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,
Ver. 1.0 Apr. 21 . 2008
34 / 34
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