LG Display LD420DUE-SFR1 Specification
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( ) Preliminary Specification
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LD420DUE
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Final Specification
Title 42.0” WUXGA TFT LCD
BUYER General
MODEL
APPROVED BY
/
/
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LD420DUE
SUFFIX SFR1 (RoHS Verified)
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
K. S. Nah
/ Chief Senior Engineer
REVIEWED BY
M.J. Lee
/ Chief Senior Engineer
SIGNATURE
DATE
PREPARED BY
K.B. Park
/
Please return 1 copy for your confirmation with
your signature and comments.
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/ Senior Engineer
PD Product Design Dept.
LG Display Co., Ltd
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LD420DUE
Product Specification
CONTENTS
Number ITEM
COVER
CONTENTS
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTERISTICS
3-2 INTERFACE CONNECTIONS
3-3 SIGNAL TIMING SPECIFICATIONS
3-4 SIGNAL TIMING WAVEFORMS 11
3-5 COLOR DATA REFERENCE
3-6 POWER SEQUENCE
4 OPTICAL SPECIFICATIONS
Page
1
2
4
5
6
6
8
10
14
15
17
5 MECHANICAL CHARACTERISTICS
6 RELIABILITY
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC 25
7-3 ENVIRONMENT 25
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS 27
9-1 MOUNTING PRECAUTIONS 27
9-2 OPERATING PRECAUTIONS 27
9-3 ELECTROSTATIC DISCHARGE CONTROL 28
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 28
9-5 STORAGE 28
21
24
25
25
26
26
26
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 28
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RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.0 Nov, 12, 2012 - Preliminary Specification (First Draft)
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LD420DUE
Product Specification
1. General Description
The LD420DUE 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 display type which is operating in the normally black mode. It has a 41.92 inch diagonally
measured active display area with WUXGA resolution (1080 vertical by 1920 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arrayed in vertical stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 16.7Million colors.
It has been designed to apply the 8-bit 2-port LVDS interface.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.
EPI(RGB)
Control
Signals
LVDS
2Port
LVDS
Select
+12.0V
CN1
(51pin)
LVDS 1,2
Option
signal
I2C
EEPROM
SCL
SDA
Timing Controller
LVDS Rx + DGA
Integrated
Power Circuit
Power Signals
Block
LED Anode
LED Cathode
LED Anode
LED Cathode
CN201 (7pin)
General Features
Active Screen Size 41.92 inches(1064.67mm) diagonal
Source Driver Circuit
S1 S1920
G1
TFT - LCD Panel
(1920 Ý RGB Ý 1080 pixels)
[Gate In Panel]
G1080
Back light Assembly
Outline Dimension 958.2(H) X 555.8(V) X 35.0(B) mm (Typ.)
Pixel Pitch 0.4833 mm x 0.4833 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 8bit, 16.7Million colors
2
Luminance, White 400 cd/m
(Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 54.85W(TBD) [Logic= 6.4W(TBD), LED Backlight=48.45W (IF_
Weight 6.3 kg (TBD.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-reflection treatment of the front polarizer (Haze 1%)
Possible Display Type Landscape and Portrait Enabled
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Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or permanent damage
to the LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter Symbol
Unit Note
Min Max
Value
Power Input Voltage LCD Circuit V
LED Input Voltage Forward Voltage
LCD -0.3 +14.0 VDC
F1 - +127(TBD)
V
V
DC
1
VF2 +83(TBD)
T-Con Option Selection Voltage V
Operating Temperature TOP 0 +50
LOGIC -0.3 +4.0 VDC
¶C
2,3
Storage Temperature T
Panel Front Temperature T
Operating Ambient Humidity H
ST -20 +60
SUR -+68
OP 10 90 %RH
¶C
¶C
4
2,3
Storage Humidity H
Note
1. Ambient temperature condition (Ta =
25 r 2 ¶C )
ST 10 90 %RH
2. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be Max 39¶C, and no condensation of water.
3. Gravity mura can be guaranteed below 40¶C condition.
4. The maximum operating temperatures is based on the test condition that the surface temperature
of display area is less than or equal to 68¶C with LCD module alone in a temperature controlled chamber.
Thermal management should be considered in final product design to prevent the surface temperature of
display area from being over 68. The range of operating temperature may be degraded in case of
improper thermal management in final product design.
90%
60
60%
Wet Bulb
Temperature [
10
0
10 20 30 40 50 60 70 800 -20
Dry Bulb Temperature [
¶C]
20
50
40
40%
30
Humidity [(%)RH]
10%
¶C]
Storage
Operation
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3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
backlight .
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
Unit Note
Min Typ Max
Circuit :
Value
Power Input Voltage V
LCD 10.8 12.0 13.2 VDC
- 530(TBD) 690(TBD) mA 1
Power Input Current ILCD
- 770(TBD) 1000(TBD) mA 2
Power Consumption P
Rush current I
Note
1. The specified current and power consumption are under the V
condition, and mosaic pattern(8 x 6) is displayed and f
LCD 6.4(TBD) 8.3(TBD) Watt 1
RUSH - - 5.0 A 3
=12.0V, Ta=25 r 2¶C, fV=60Hz
LCD
is the frame frequency.
V
2. The current is specified at the maximum current pattern.
3. The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).
4. Ripple voltage level is recommended under ·5% of typical voltage
White : 255 Gray
Black : 0 Gray
Mosaic Pattern(8 x 6)
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Table 3. ELECTRICAL CHARACTERISTICS (Continue)
LD420DUE
Backlight Assembly :
Forward Current
(one array)
Forward Voltage
Power Consumption P
Burst Dimming Duty On duty 1 100 %
Burst Dimming Frequency 1/T 95 182 Hz 7
LED Array : (APPENDIX-V)
Life Time 30,000 Hrs 6
Notes :
Parameter Symbol
Anode I
Cathode I
F (anode)
F (cathode)
V
F1
V
F2
BL
Min Typ Max
271 285 299 mAdc
93(TBD) 102(TBD) 111(TBD)
62(TBD) 68(TBD) 74(TBD)
- 48.45 54.15 W 5
Values
285 mAdc
Unit Note
·5%
2, 3
Vdc 4
The design of the LED driver must have specifications for the LED array in LCD Assembly.
The electrical characteristics of LED driver are based on Constant Current driving type.
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.
When you design or order the LED driver, please make sure unwanted lighting caused by the mismatch of the
LED and the driver (no lighting, flicker, etc) has never been occurred. When you confirm it, the LCD–
Assembly should be operated in the same condition as installed in your instrument.
1. Electrical characteristics are based on LED Array specification.
2. Specified values are defined for a Backlight Assembly. (IBL :10 LED array/LCM)
3. Each LED array has 1 anode terminal and 1 cathode terminal.
The forward current (I
) of the anode terminal is 285mA and it supplies 285mA into one string, respectively
F
1string(30 LED PKG)
Anode1
285mA
¶¶¶
285mA
Cathode
6 Array (1 String)
1string(20 LED PKG)
285mA
Anode2
4. The forward voltage (V
¶¶¶
) of LED array depends on ambient temperature (Appendix-VII)
F
285mA
Cathode
4 Array (1 String)
5. Maximum level of power consumption is measured at initial turn on.
Typical level of power consumption is measured after 1hrs aging at 25 r 2¶C.
6. The life time (MTTF) is determined as the time at which brightness of the LED is 50% compared to that of
initial value at the typical LED current on condition of continuous operating at 25 r 2¶C, based on duty 100
7. The reference method of burst dimming duty ratio.
It is recommended to use synchronous V-sync frequency to prevent waterfall
(Vsync * 2 =Burst Frequency)
Though PWM frequency is over 182Hz (max252Hz), function of backlight is not affected.
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3-2. Interface Connections
This LCD module employs two kinds of interface connection, a 51-pin connector is used for the module
electronics and 2pin,2pin connector is used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): FI-RE51S-HF(manufactured by JAE) or GT05P-51S-H38(manufactured by LSM)
or IS050-C51B-C39(manufactured by UJU)
- Mating Connector : FI-R51HL(JAE) or compatible
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
No Symbol Description No Symbol Description
NC or GND
1
2
3
4
5
6
7
8
9
10
11 GND
12 R1AN
13 R1AP
14 R1BN
15
16 R1CN
17 R1CP
18 GND
19 R1CLKN
20
21 GND
22 R1DN
23 R1DP
24
25
26
NC
NC
NC
NC
NC
LVDS Select
NC
NC
NC
R1BP
R1CLKP
NC
NC
NC or GND
No Connection or Ground
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
ಫHಬ =JEIDA , ಫLಬ or NC = VESA
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
Ground
FIRST LVDS Receiver Signal (A-)
FIRST LVDS Receiver Signal (A+)
FIRST LVDS Receiver Signal (B-)
FIRST LVDS Receiver Signal (B+)
FIRST LVDS Receiver Signal (C-)
FIRST LVDS Receiver Signal (C+)
Ground
FIRST LVDS Receiver Clock Signal(-)
FIRST LVDS Receiver Clock Signal(+)
Ground
FIRST LVDS Receiver Signal (D-)
FIRST LVDS Receiver Signal (D+)
No Connection
No Connection
No Connection or Ground
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
- - -
NC
R2AN
R2AP
R2BN
R2BP
R2CN
R2CP
GND
R2CLKN
R2CLKP
GND
R2DN
R2DP
NC
NC
NC or GND
NC or GND
GND Ground
GND Ground
GND Ground
NC No connection
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
No Connection
SECOND LVDS Receiver Signal (A-)
SECOND LVDS Receiver Signal (A+)
SECOND LVDS Receiver Signal (B-)
SECOND LVDS Receiver Signal (B+)
SECOND LVDS Receiver Signal (C-)
SECOND LVDS Receiver Signal (C+)
Ground
SECOND LVDS Receiver Clock Signal(-)
SECOND LVDS Receiver Clock Signal(+)
Ground
SECOND LVDS Receiver Signal (D-)
SECOND LVDS Receiver Signal (D+)
No Connection
No Connection
No Connection or Ground
No
Connection or Ground
Note
1. All GND(ground) pins should be connected together to the LCD module’s metal frame.
2. All V
LCD (power input) pins should be connected together.
3. All Input levels of LVDS signals are based on the EIA 644 Standard.
4. #1~#6 & #8~#10 NC (No Connection): These pins are used only for LGD (Do not connect)
5. Specific pin No. #44 is used for “No signal detection” of system signal interface.
It should be GND for NSB(No Signal Black) during the system interface signal is not.
If this pin is “H”, LCD Module displays AGP(Auto Generation Pattern).
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3-2-2. Backlight Module
[ CN201 ]
1) LED Array ass`y Connector (Plug)
: SMH200-07
(black color, manufactured by Yeonho)
2) Mating Connector (Receptacle)
: 60$:$+$$'LS7\SH
:5+$$60'7\SH
(black color, manufactured by Yeonho)
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LD420DUE
Product Specification
Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN201)
No Symbol(CN201)
1 Cathode2
2 N.C
3 Anode2
4 N.C
5 Cathode1
6 N.C
7 Anode1
ଝ Rear view of LCM
Description
LED output Current
Open
LED input Current
Open
LED output Current
Open
LED input Current
swiG
2block
1block
2block
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3-3. Signal Timing Specifications
Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
timings should be satisfied with the following specification for normal operation.
Table 6. TIMING TABLE (DE Only Mode)
ITEM Symbol Min Typ Max Unit Note
LD420DUE
Horizontal
Vertical
Frequency
Display
Period
Blank t
Total t
Display
Period
Blank t
Total t
ITEM Symbol Min Typ Max Unit Note
DCLK fCLK 63.00 74.25 78.00 MHz
Horizontal fH 57.3 67.5 70 KHz 2
Vertical f
HV 960 960 960 tCLK 1920 / 2
t
HB 100 140 240 tCLK 1
HP 1060 1100 1200 tCLK
VV 1080 1080 1080 Lines
t
VB
VP
20
(228)
1100
(1308)
V
57
(47)
45
(270)
1125
(1350)
60
(50)
69
(300)
1149
(1380)
63
(53)
Lines 1
Lines
2
Hz
NTSC : 57~63Hz
(PAL : 47~53Hz)
Note: 1. The input of HSYNC & VSYNC signal does not have an effect on normal operation (DE Only Mode).
If you use spread spectrum of EMI, add some additional clock to minimum value for clock margin.
2. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rate and the horizontal frequency
3. Spread Spectrum Rate (SSR) for 50KHz ~ 100kHz Modulation Frequency(FMOD) is calculated by
(7 – 0.06*Fmod), where Modulation Frequency (FMOD) unit is KHz.
LVDS Receiver Spread spectrum Clock is defined as below figure
Timing should be set based on clock frequency.
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Please pay attention to the followings when you set Spread Spectrum Rate(SSR) and Modulation Frequency(FMOD)
1. Please set proper Spread Spectrum Rate(SSR) and Modulation Frequency (FMOD) of TV system LVDS output.
2. Please check FOS after you set Spread Spectrum Rate(SSR) and Modulation Frequency(FMOD) to avoid
abnormal display. Especially, harmonic noise can appear when you use Spread Spectrum under FMOD 30 KHz.
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