LG Display LC420DUN-SFU3 Specification
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LC420DUN
Product Specification
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()Preliminary Specification
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LC420DUN
Product Specification
SPECIFICATION
FOR
APPROVAL
() Final Specification
Title 42.0” WUXGA TFT LCD
BUYER Konka
MODEL
APPROVED BY
/
SIGNATURE
DATE
SUPPLIER LG Display Co., Ltd.
*MODEL LC420DUN
SUFFIX SFU3
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
J.T.KIM / Team Leader
REVIEWED BY
SIGNATURE
DATE
/
/
Please return 1 copy for your confirmation with
your signature and comments.
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J.Y.JEONG / Project Leader
PREPARED BY
S.W. KWAG / Engineer
TV Product Development Dept.
LG Display Co., Ltd
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LC420DUN
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 27
7-3 ENVIRONMENT 27
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS 29
9-1 MOUNTING PRECAUTIONS 29
9-2 OPERATING PRECAUTIONS 29
9-3 ELECTROSTATIC DISCHARGE CONTROL 30
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 30
9-5 STORAGE 30
23
25
27
27
28
28
28
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 30
9-7 OPERATING GONDITION GUIDE 30
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Product Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.1 Jul, 02, 2012 - Preliminary Specification (First Draft)
1.0 Jul, 30, 2012 - Final Specification
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LC420DUN
Product Specification
1. General Description
The LC420DUN 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 42.02 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
+24.0V, GND, On/off
Ext VBR-B
CN1
(51pin)
LVDS 1,2
Option
signal
I2C
EEPROM
SCL
Timing Controller
LVDS Rx + Scanning
Power Circuit
SDA
Integrated
Block
LED Driver
Power Signals
General Features
Active Screen Size 42.02 inches(1067.31mm) 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(B) mm (Typ.)
Pixel Pitch 0.4845 mm x 0.4845 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 8bit, 16.7Million colors
Luminance, White 370 cd/m
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 71.24W(typ) [Logic= 6.34W(Typ), LED Driver=64.9W (ExtVbr_B=100% )]
Weight 6.3kg(typ)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(2H), Anti-glare treatment of the front polarizer (Haze 1%)
Ver. 1.0
2
(Center 1point ,Typ.)
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LC420DUN
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
LCD Circuit V
LCD -0.3 +14.0 VDC
Power Input Voltage
Driver V
ON/OFF V
BL -0.3 + 27.0 VDC
OFF / VON -0.3 +5.5 VDC
Driver Control Voltage
Brightness EXTVBR-B -0.3 +5.5 VDC
T-Con Option Selection Voltage VLOGIC -0.3 +4.0 VDC
Operating Temperature TOP 0+50
Storage Temperature T
Panel Front Temperature T
Operating Ambient Humidity H
Storage Humidity H
Note
1. Ambient temperature condition (Ta =
25 r 2 ¶C )
ST -20 +60
SUR -+68
OP 10 90 %RH
ST 10 90 %RH
¶C
¶C
¶C
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 68ć. The range of operating temperature may be degraded in case of
improper thermal management in final product design.
90%
1
2,3
4
2,3
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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LC420DUN
Product Specification
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 and LED Driver circuit.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
Unit Note
Min Typ Max
Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC
- 528 686 mA 1
Power Input Current ILCD
- 789 1025 mA 2
Value
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 6.34 8.23 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)
LC420DUN
Parameter Symbol
Min Typ Max
LED Driver :
Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1
Power Supply Input Current IBL_A
Power Supply Input Current (In-Rush) Irush - - 5 A
Power Consumption PBL -
On/Off
Brightness Adjust ExtV
ExtVBR-B Frequency
ExtVBR-B Level
On V on 2.5 - 5.0 Vdc
Off V off -0.3 0.0 0.7 Vdc
BR-B
PAL 100 Hz 3
NTSC 120 Hz 3
High Level 2.5 - 5.0
Low Level 0.0 - 0.7
-
5 - 100
1 - 100
Values
2.7 2.94 A Ext VBR-B = 100%
64.9 70.6
Unit Notes
BL = 22.8V
V
BR-B = 100%
Ext V
WExt V
%
Vdc
Vdc
BR-B = 100%
On Duty
HIGH : on duty
LOW : off duty
4
6
LED :
Life Time 30,000 50,000 Hrs 2
Notes :
1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 60
minutes at 25·2¶C. The specified current and power consumption are under the typical supply Input voltage
24Vand V
BR (ExtVBR-B : 100%), it is total power consumption.
2. The life time (MTTF) is determined as the time which luminance of the LED is 50% compared to that of initial
value at the typical LED current (ExtVBR-B :100%) on condition of continuous operating in LCM state at
25·2¶C.
3. LGD recommend that the PWM freq. is synchronized with One time harmonic of V_sync signal of system.
Though PWM frequency is over 120Hz (max 252Hz), function of LED Driver is not affected.
4. The duration of rush current is about 200ms. This duration is applied to LED on time.
5. Even though inrush current is over the specified value, there is no problem if I
6. ExtV
After Driver ON signal is applied, ExtV
After that, ExtV
signal have to input available duty range and sequence.
BR-B
should be sustained from 5% to 100% more than 500ms.
BR-B
1% and 100% is possible
BR-B
2
T spec of fuse is satisfied.
For more information, please see 3-6-2. Sequence for LED Driver.
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Product Specification
3-2. Interface Connections
This LCD module employs two kinds of interface connection, 51-pin connector is used for the module
electronics and 14-pin connector is used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): FI-RE51S-HF(manufactured by JAE) or compatible
- 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
LC420DUN
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
Master
-LED Driver Connector
: 20022WR - H14B2(Yeonho) or compatible
-.Mating Connector
: 20022HS - 14B2 or compatible
Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION
Pin No Symbol Description Note
LC420DUN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VBL Power Supply +24.0V
VBL Power Supply +24.0V
VBL Power Supply +24.0V
VBL Power Supply +24.0V
VBL Power Supply +24.0V
GND
GND
GND
GND
GND
Status
ON/OFF
V
NC Don’t care
EXTVBR-B External PWM
Backlight Ground
Backlight Ground
Backlight Ground
Backlight Ground
Backlight Ground
Back Light Status 2
Backlight ON/OFF control
1
Notes : 1. GND should be connected to the LCD module’s metal frame.
2. Normal : Low (under 0.7V) / Abnormal : open
3. High : on duty / Low : off duty, Pin#14 can be opened. ( if Pin #14 is open , EXTVBR-B is 100% )
4. Each impedance of pin #12 and 14 is over 50 [KΩ].
ଝ Rear view of LCM
ଝ Status
PCB
14
…
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1
14
…
1
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LC420DUN
Product Specification
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
Horizontal
Vertical
Frequency
Display
Period
Blank t
Total t
Display
Period
Blank t
Total t
ITEM Symbol Min Typ Max Unit Note
DCLK f
Horizontal fH 57.3 67.5 70 KHz 2
Vertical fV
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
CLK 63.00 74.25 78.00 MHz
20
(228)
1100
(1308)
57
(47)
45
(270)
1125
(1350)
60
(50)
69
(300)
1149
(1380)
63
(53)
Lines 1
Lines
Hz
NTSC : 57~63Hz
(PAL : 47~53Hz)
2
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
Ć Timing should be set based on clock frequency.
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3-4. LVDS Signal Specification
3-4-1. LVDS Input Signal Timing Diagram
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LC420DUN
Product Specification
DE, Data
DCLK
First data
Second data
0.7VDD
0.3VDD
tCLK
DE(Data Enable)
0.5 VDD
Invalid data
Invalid data
Valid data
Pixel 0,0 Pixel 2,0
Valid data
Pixel 1,0 Pixel 3,0
Invalid data
Invalid data
tHV
DE(Data Enable)
Ver. 1.0
tHP
1 1080
tVV
tVP
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