The LC420DUJ is a Color Active Matrix Liquid Crystal Display with an integral the Source PCB and Gate
implanted on Panel (GIP). 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 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 arranged 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 16.7M(true) colors.
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
Power Signals
Source Driver Circuit
S1 S1920
G1
TFT - LCD Panel
(1920 × RGB × 1080 pixels)
[Gate In Panel]
G1080
Back light Assembly
LVDS
2Port
LVDS
Select
+12.0V
LED Anode
LED Cathode
LED Anode
LED Cathode
CN1
(51pin)
LVDS 1,2
Option
signal
I2C
EEPROM
SCL
Timing Controller
LVDS Rx + DGA
Power Circuit
SDA
Integrated
Block
CN201 (7pin)
General Features
Active Screen Size 41.92 inches(1064.77mm) diagonal
Outline Dimension
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
Drive IC Data Interface
Transmittance (With POL) 5.54%(Typ.) (TBD)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Weight 1.5 Kg (Typ.) (TBD)
Display Mode Transmissive mode, Normally black
Surface Treatment (Top) Hard coating(3H), Anti-glare treatment of the front polarizer (Haze < 1%),
946.9(H) X 542.1(V) X 1.3(D)) mm (Typ.)
Source D-IC : 8-bit EPI, gamma reference voltage, and control signals
Gate D-IC : Gate In Panel
Ver. 0.2
3 / 36
Page 5
LC420DUJ
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
Power Input Voltage LCD Circuit VLCD -0.3 +14.0 VDC
Value
T-Con Option Selection Voltage VLOGIC
Operating Temperature TOP 0 +50
Storage Temperature TST -20 +60
1. Ambient temperature condition (Ta = 25 2 °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℃ condition.
4. The maximum operating temperature is based on the test condition that the surface temperature
of display area is less than or equal to 68 ℃ 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
degrade in case of improper thermal management in final product design.
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
Min Typ Max
Value
Unit Note
Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC
Power Input Current ILCD
Power Consumption PLCD 6.4 8.3 Watt 1
Rush current IRUSH - - 3.0 A 3
Note
1. The specified current and power consumption are under the V
condition, and mosaic pattern(8 x 6) is displayed and fV is the frame frequency.
2. The current is specified at the maximum current pattern.
- 530 690 mA 1
- 770 1000 mA 2
=12.0V, Ta=25 2°C, fV=60Hz
LCD
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
Ver. 0.2
White : 255 Gray
Black : 0 Gray
Mosaic Pattern(8 x 6)
5 / 36
Page 7
LC420DUJ
Product Specification
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)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
‘H’ =JEIDA , ‘L’ 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 VLCD (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).
Ver. 0.2
6 / 36
Page 8
LC420DUJ
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 tHB 100 140 240 tCLK 1
Total tHP 1060 1100 1200 tCLK
Display
Period
Blank tVB
Total tVP
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 fV
tHV 960 960 960 tCLK 1920 / 2
tVV 1080 1080 1080 Lines
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
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.
Ver. 0.2
7 / 36
Page 9
LC420DUJ
Product Specification
※ 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.
Ver. 0.2
8 / 36
Page 10
3-4. LVDS Signal Specification
3-4-1. LVDS Input Signal Timing Diagram
LC420DUJ
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
tHP
Invalid data
Invalid data
tHV
DE(Data Enable)
Ver. 0.2
1 1080
tVV
tVP
9 / 36
Page 11
3-4-2. LVDS Input Signal Characteristics
1) DC Specification
LVDS -
LVDS +
LC420DUJ
Product Specification
0 V
# V
= { ( LVDS +) + ( LVDS - ) } / 2
CM
V
CM
V
IN _ MAX V IN _ MIN
Description Symbol Min Max Unit Note
LVDS Common mode Voltage V
LVDS Input Voltage Range V
CM
IN
1.0 1.5 V -
0.7 1.8 V -
Change in common mode Voltage ΔVCM - 250 mV -
2) AC Specification
2) AC Specification
T
clk
LVDS Clock
A
LVDS Data
( F
= 1 / T
)
clk
A
LVDS 1‟st Clock
LVDS 2nd Clock
tSKEW
tSKEW
t
SKEW_min tSKEW_max
clk
T
clk
80%
20%
t
RF
Description Symbol Min Max Unit Note
VTH 100 600 mV
LVDS Differential Voltage
VTL -600 -100 mV
LVDS Clock to Data Skew t
LVDS Clock/DATA Rising/Falling time t
Effective time of LVDS t
LVDS Clock to Clock Skew (Even to Odd) t
1. All Input levels of LVDS signals are based on the EIA 644 Standard.
Note
2. If tRF isn‟t enough, t
should be meet the range.
eff
SKEW
RF
eff
SKEW_EO
3. LVDS Differential Voltage is defined within t
Ver. 0.2
- |(0.25*T
260 |(0.3*T
|± 360|
- |1/7* T
eff
)/7| ps
clk
)/7| ps 2
clk
- ps
| ps -
clk
Tested with Differential Probe
3
-
-
10 / 36
Page 12
Product Specification
LC420DUJ
LVDS Data
0V
(Differential)
LVDS CLK
0.5tui
360ps
tui
VTH
VTL
360ps
teff
tui : Unit Interval
0V
(Differential)
* This accumulated waveform is tested with differential probe
Ver. 0.2
11 / 36
Page 13
Product Specification
3-5. Intra interface Signal Specification
3-5-1. EPI Signal Specification
Table 2. ELECTRICAL CHARACTERISTICS
LC420DUJ
Parameter Symbol Condition MIN TYP MAX Unit
Logic & EPI Power Voltage VCC - 1.62 1.8 1.98 VDC
EPI input common voltage VCM LVDS Type 0.8 VCC/2 1.3 V
EPI input differential voltage Vdiff - 150 - 500 mV
EPI Input eye diagram Veye - 90 - - mV
EPI +
0 V
Vdiff
Vdiff
(Differential Probe)
EPI -
0 V
Vdiff
Vcm
(Active Probe)
FIG. 2-1 EPI Differential signal characteristics
1 UI
0.5 UI
note
s
0 V
(Differential Probe)
Ver. 0.2
Veye
Veye
B1 B2
FIG. 2-2 Eye Pattern of EPI Input
*Source PCB
FIG. 3 Measure point
12 / 36
Page 14
LC420DUJ
Product Specification
3-6. Color Data Reference
The brightness of each primary color(red,green,blue) is based on the 8bit gray scale data input for the color.
The higher binary input, the brighter the color. Table 7 provides a reference for color versus data input.
T4 200 - - ms 3
T5 1.0 - - s 4
T6 0 - T2 ms 5
T7 0 - - ms 6
1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.
3. The T3 / T4 is recommended value, the case when failed to meet a minimum specification,
abnormal display would be shown. There is no reliability problem.
4. T5 should be measured after the Module has been fully discharged between power off and on period.
5. If the on time of signals (Interface signal and user control signals) precedes the on time of Power (V
it will be happened abnormal display. When T6 is NC status, T6 doesn‟t need to be measured.
6. It is recommendation specification that T7 has to be 0ms as a minimum value.
※ Please avoid floating state of interface signal at invalid period.
※ When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.
LCD
),
14 / 36
Page 16
LC420DUJ
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been „ON‟ and stable in a dark environment at 25± 2°C.
The values are specified at distance 50cm from the LCD surface at a viewing angle of and equal to 0 °.
FIG. 6 shows additional information concerning the measurement equipment and method.
Optical Stage(x,y)
LCD Module
Pritchard 880 or
equivalent
50cm
FIG. 6 Optical Characteristic Measurement Equipment and Method
Ta= 25± 2°C, VDD,H_VDD,VGH,VGL=typ, fV=60Hz,
Table 6. OPTICAL CHARACTERISTICS
Parameter Symbol
Contrast Ratio CR 850 1200 - 1
Response Time
Color Coordinates
[CIE1931]
Viewing Angle (CR>10)
x axis, right(=0°)
Gray Scale - - - 4
x axis, left (=180°)
y axis, up (=90°)
y axis, down (=270°)
Rising Tr Falling Tf -
RED
GREEN
BLUE
Rx
Ry 0.333(TBD)
Gx 0.301(TBD)
Gy 0.595(TBD)
Bx 0.149(TBD)
By 0.061(TBD)
r 89 - -
l 89 - -
u 89 - -
d 89 - -
BW=0.693GBPS , EXTVBR-B =100% Back Light : LGD B/L
Value
Min Typ Max
6 9
Unit notes
ms 2
9 13
0.649(TBD)
Typ
-0.03
Typ
+0.03
degree 3
Ver. 0.2
15 / 36
Page 17
LC420DUJ
Product Specification
Note : 1. Contrast Ratio(CR) is defined mathematically as :
Surface Luminance with all white pixels
Contrast Ratio =
Surface Luminance with all black pixels
It is measured at center 1-point.
2. Surface luminance are determined after the unit has been „ON‟ and 1 Hour after lighting the
backlight in a dark environment at 25± 2°C. Surface luminance is the luminance value at center
1-point across the LCD surface 50cm from the surface with all pixels displaying white.
For more information see the FIG. 2.
3. The variation in surface luminance , WHITE is defined as :
WHITE(5P) = Maximum(L
Where L
on1
to L
are the luminance with all pixels displaying white at 5 locations .
on5
on1,Lon2
For more information, see the FIG. 2.
4. Response time is the time required for the display to transit from any gray to white (Rise Time, TrR)
and from any gray to black (Decay time, TrD). For additional information see the FIG. 3.
※ G to GBW Spec stands for average value of all measured points.
Photo Detector : RD-80S / Field : 2 °
5. G to G σ is Variation of Gray to Gray response time composing a picture
G to G (σ) =
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 module surface. For more information, see the FIG. 4.
7. Gray scale specification
Gamma Value is approximately 2.2. For more information, see the Table 11.
, L
Σ(Xi- u)2
N
, L
, L
on3
on4
) / Minimum(L
on5
Xi = Individual Data
u = Data average
N : The number of Data
Measuring point for surface luminance & luminance variation
H
A
LC420DUJ
③ ②
V
①
B
A : H / 4 mm
④
FIG. 7 5 Points for Luminance Measure
Response time is defined as the following figure and shall be measured by switching the input signal for
“Black” ~ “White” and “White” ~ “Black”.
Tr
100
90
⑤
Tf
B : V / 4 mm
@ H,V : Active Area
Ver. 0.2
Optical
Response
10
0
Black
White
FIG. 8 Response Time
White
Black
17 / 36
Page 19
Dimension of viewing angle range
Normal
Y
E
= 0, Right
= 180, Left
= 270, Down
= 90, Up
LC420DUJ
Product Specification
FIG.9 Viewing Angle
Ver. 0.2
18 / 36
Page 20
Product Specification
5. Mechanical Characteristics
Table 8 provides general mechanical characteristics.
Table 8. MECHANICAL CHARACTERISTICS
Item Value
Horizontal 946.9mm
Outline Dimension
(Only Glass)
Active Display Area
Weight 1.5kg(typ) (TBD)
Vertical 542.1mm
Thickness 1.3 mm
Horizontal 927.94mm
Vertical 521.96mm
LC420DUJ
Surface Treatment
Hard coating(3H)
Anti-glare treatment of the front polarizer(<1%)
notes : Please refer to a mechanic drawing in terms of tolerance at the next page.
Ver. 0.2
19 / 36
Page 21
6-1. Board Assembly Dimension
LC420DUJ
Product Specification
Ver. 0.2
20 / 36
Page 22
Product Specification
6-2. Control Board Assembly Dimension
LC420DUJ
Ver. 0.2
21 / 36
Page 23
6-3. FFC Dimension
LC420DUJ
Product Specification
Ver. 0.2
- Material List
◈ Note
- Pad : GOLD Plating
- #치수 : Cpk 1.0 이상
- ##치수 : Cpk 1.33 이상
- Stiffener 색상 : Sky Blue
- H-F
- 치수단위 : mm
22 / 36
Page 24
Product Specification
7. Reliability
Table 9. ENVIRONMENT TEST CONDITION
No. Test Item Condition
LC420DUJ
1 High temperature storage test
2 Low temperature storage test
3 High temperature operation test
4 Low temperature operation test
5 Humidity condition Operation
6
Altitude operating
storage / shipment
Ta= 60°C 240h
Ta= -20°C 240h
Ta= 50°C 50%RH 240h
Ta= 0°C 240h
Ta= 40 °C ,90%RH
0 – 16,400 ft
0 - 40,000 ft
notes : Before and after Reliability test, Board ass‟y should be operated with normal function.
Ver. 0.2
23 / 36
Page 25
Product Specification
8. International Standards
8-1. Environment
a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003
LC420DUJ
Ver. 0.2
24 / 36
Page 26
Product Specification
9. Packing
9-1. Packing Form
a) Package quantity in one Pallet : 80 pcs
b) Pallet Size : 1140 mm X 740 mm X 1090 mm.
LC420DUJ
Ver. 0.2
25 / 36
Page 27
LC420DUJ
Product Specification
10. Precautions
Please pay attention to the followings when you use this TFT LCD panel.
10-1. Assembly Precautions
(1) 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.
(2) You should adopt radiation structure to satisfy the temperature specification.
(3) 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.
(4) 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.)
(5) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like
chamois soaks with petroleum benzine. 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
(6) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes
deformations and color fading.
(7) Board ass‟y should be put on the mold frame properly.
(8) FFC Cable should be connected between System board and Source PCB correctly.
(9) Mechanical structure for backlight system should be designed for sustaining board ass‟y safely.
10-2. Operating Precautions
(1) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(2) 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
(3) 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.
(4) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(5) 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.
(6) Please do not give any mechanical and/or electrical impact to board assy. Otherwise, it can‟t be operated
its full characteristics perfectly.
Ver. 0.2
26 / 36
Page 28
LC420DUJ
Product Specification
10-3. 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.
Panel ground path should be connected to metal ground.
10-4. Precautions for Strong Light Exposure
Strong light exposure causes degradation of polarizer and color filter.
10-5. Storage
When storing the board ass‟y as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the board ass‟y 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.
Ver. 0.2
27 / 36
Page 29
# APPENDIX-I
■Pallet Ass‟y
LC420DUJ
Product Specification
ⓑ
①
③
⑤
②
ⓐ
④
ⓒ
ⓓ
ⓔ
Ver. 0.2
⑥
No. Description Material
ⓐ
ⓑ
ⓒ
ⓓ
ⓔ
ⓕ
ⓖ
ⓗ
ⓘ
Pallet Plywood
Carton Plate Single Wall
PE Sheet Carbon
Top Packing EPS
Bottom Packing EPS
Angle Packing Single Wall
Tape OPP
Band PP
Clip Steel
28 / 36
Page 30
Product Specification
# APPENDIX-Ⅰ-2
■ LC420DUJ-FFE1 Control PCB Packing Ass’y
a) Control PCB Qty / Box : 80 pcs
b) Tray Qty / Box : 13Tray(Upper Tray Is empty)
c) Tray Size : 466 X 353 X 16
d) Box size : 468 X 355 X 119