The LC420WU2 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) 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 W UXGA 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 16.7M(true) 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.
Total 167.3 W (Typ.) (Logic=7.3 W, Inverter=160W [IBL=6.0 mA] ) Power Consumption
13.0K g (Typ.) Weight
Transmissive mode, Normally blackDisplay Mode
Hard coating(3H), Anti-glare treatment of the front polarizer(Haze 13%)Surface Treatment
Ver. 1.0Nov. 28, 2006
4 /32
LC420WU2
Liquid Crystal Display
Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or damage to the
LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Value
ParameterRemark
Symbol
Unit
MaxMin
Power Input
Voltage
LCM
Backlight inverter
Brightness Control Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
LCD
BL
Br
OP
ST
OP
ST
+14.0-0.3V
+27.0+21.6V
+5.25-0.3VON/OFFON/OFF Control Voltage
+5.00V
+400T
+50-20T
V
V
V
°C
°C
%RH9010H
%RH9010H
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.
90%
60
60%
DC
DC
DC
DC
at 25 ± 2 °CV
Note 1
Wet Bulb
50
Temperature [°C]
40
30
20
10
0
10203040506070800-20
Dry Bulb Temperature [°C]
Ver. 1.0Nov. 28, 2006
40%
10%
Storage
Operation
Humidity [(%)RH]
5 /32
LC420WU2
Liquid Crystal Display
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 CCFL
backlight and inverter circuit.
Table 2. ELECTRICAL CHARACTERISTICS
ParameterSymbol
Value
Circuit :
Power Input Voltage
Power Input Current
Power Consumption
Rush current
LCD
I
LCD
LCD
RUSH
Note : 1. The specified current and power consumption are under the V
condition whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.
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 1ms (min.).
White : 255Gray
Black : 0Gray
MaxTypMin
V
12.612.011.4V
=12.0V, 25 ± 2°C, fV=60Hz
LCD
DC
NoteUnit
1mA793610-
2mA1066820-
1Watt9.57.3-P
3A3.0--I
Mosaic Pattern(8 x 6)
Ver. 1.0Nov. 28, 2006
6 /32
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
LC420WU2
Liquid Crystal Display
Inverter :
Input Voltage for
Control System
Signals
ParameterSymbol
IBLPower Supply Input Current
Brightness Adjust
(Analog dimming)
Brightness Adjust
(Burst mode)
OnVdc5.0-2.5V on
On/Off
Off
Values
MaxTypMin
NotesUnit
Vdc25.224.022.8VBLPower Supply Input Voltage
A7.36.7-
A8.57.9-
A13--IrushPower Supply Input Current(In-Rush)
W175160-PBLPower Consumption
Vdc3.3-0.0Vbr-A
V3.30.0Vbr-B
Vdc0.50.0-0.3V off
1
1Vp-p0.2-0.2Power Supply Input Voltage Ripple
Vbr-B = 3.3V
Vbr-A= 1.65V
Vbr-B = 3.3V
Vbr-A= 3.3V
VBL = 22.8V
Vbr-B= 3.3V
Vbr-A = 1.65V
1
Life Time
Notes :
1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 120
minutes at 25± 2°C
The specified current and power consumption are under the typical supply Input voltage 24V and Vbr 1.65V,
it is total power consumption.
The ripple voltage of the power supply input voltage is under 0.4 Vp-p.
LPL recommend Input Voltage is 24.0V ± 5%.
2. The life is determined as the time at which luminance of the lamp is 50% compared to that of initial
value at the typical lamp current on condition of continuous operating at 25 ± 2°C.
Specified value is when lamp is aligned horizontally.
3. The lamp life time for LCM is guaranteed minimum 50,000 hours when Vbr(Analog) and Vbr-B(Burst)
are maximum values.
Ver. 1.0Nov. 28, 2006
2,3Hrs50,000
7 /32
LC420WU2
Liquid Crystal Display
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 Master 14-pin and Slave 12-pin connectors are used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): FI-R51S-HF(manufactured by JAE) or KN25-51P-0.5SH(manufactured by Hirose)
- Mating Connector : FI-R51HL(JAE) or compatible
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
GND
GND
RO0N
RO0P
RO1N
RO1P
RO2N
RO2N
GND
ROCLKN
ROCLKP
GND
RO3N
RO3P
Reserved (NC)
Reserved (NC)
Reserved
DescriptionSymbolNo
Ground
No ConnectionReserved(NC)
No ConnectionReserved(NC)
No ConnectionReserved(NC)
No ConnectionReserved(NC)
No connectionReserved(NC)
Select LVDS Data formatLVDS Select
External VBRVBR_EXT
VBR outputVBR_OUT
‘H’ = Enable , ‘L’ = Disable DCR Enable
Ground
FIRST CHANNEL 0-
FIRST CHANNEL 0+
FIRST CHANNEL 1-
FIRST CHANNEL 1+
FIRST CHANNEL 2-
FIRST CHANNEL 2+
Ground
FIRST CLOCK CHANNEL C-
FIRST CLOCK CHANNEL C+
Ground
FIRST CHANNEL 3-
FIRST CHANNEL 3+
No Connection
No Connection
No connection or GND
No
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
-
Symbol
Reserved
RE0N
RE0P
RE1N
RE1P
RE2N
RE2P
GND
RECLKN
RECLKP
GND
RE3N
RE3P
Reserved (NC)
Reserved (NC)
Reserved
Reserved
GND
GND
GND
NC
VLCD
VLCD
VLCD
VLCD
-
Description
No connection or GND
SECOND CHANNEL 0-
SECOND CHANNEL 0+
SECOND CHANNEL 1-
SECOND CHANNEL 1+
SECOND CHANNEL 2SECOND CHANNEL 2+
Ground
SECOND CLOCK CHANNEL C-
SECOND CLOCK CHANNEL C+
Ground
SECOND CHANNEL 3-
SECOND CHANNEL 3+
No Connection
No Connection
No connection or GND
No connection or GND
Ground
Ground
Ground
No connection
Power Supply +12.0V
Power Supply +12.0V
Power Supply +12.0V
Power Supply +12.0V
-
Note :
1. The pin no 44 is LCD Test option. “AGP” (Auto Generation LCM operates Pattern) or “NSB” (No Signal
Black) is case that LVDS signals are out of frequency or abnormal condition in spite of 12 volt power
supply.
2.Typical(1.65V)Don’t careAnalog Dimming0.0V ~ 3.3V V
3, Open/High for B/L
on as default
4
PCB
14
…
…
1
<Master>
Ver. 1.0Nov. 28, 2006
1
…
…
12
<Slave>
11 /32
LC420WU2
Liquid Crystal Display
Product Specification
3-3. Signal Timing Specifications
Table 8 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal timing
should be satisfied with the following specification for normal operation.
Table 8. TIMING TABLE for NTSC (DE Only Mode)
NoteUnitMaxTypMinSymbolITEM
DCLK
Hsync
Period
Period
Horizontal Valid
Horizontal Blank
Frequency
Width
Horizontal Back Porch
Horizontal Front Porch
Period
Vertical Valid
Vertical Blank
Frequency
Width
CLK
HP
HV
HB
H
WH
HBP
HFP
VP
VV
VB
V
WV
ns14.2913.4712.99t
MHz7774.2570-Frequency
t
128011001060t
-960-t
CLK
t
CLK
=148.5/2
320140100t
68.967.565.5f
603012t
KHz
t
CLK
1
1207812t
1203212t
t
114911251091t
-1080-t
694511t
1054t
HP
t
HP
t
HP
Hz636057f
t
HP
1Vsync
Vertical Back Porch
Vertical Front Porch
Note : 1. tHB= t
tVB= t
HFP
VFP
+ tWH+t
+ tWV+t
VBP
VFP
HBP
VBP
48366t
1042t
The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode).
The performance of the electro-optical characteristics may be influenced by variance of the vertical refresh rate.
Ver. 1.0Nov. 28, 2006
12 /32
LC420WU2
Liquid Crystal Display
Product Specification
Table 9 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal timing
should be satisfied with the following specification for normal operation.
Table 9. TIMING TABLE for PAL (DE Only Mode)
NoteUnitMaxTypMinSymbolITEM
DCLK
Hsync
Period
Period
Horizontal Valid
Horizontal Blank
Frequency
Width
Horizontal Back Porch
Horizontal Front Porch
Period
Vertical Valid
Vertical Blank
Frequency
Width
CLK
HP
HV
HB
H
WH
HBP
HFP
VP
VV
VB
V
WV
ns16.7716.1614.81t
MHz67.561.8859.63-Frequency
t
120011001060t
-960-t
CLK
t
CLK
=123.75/2
240140100t
57.2556.2555.25f
603012t
KHz
t
CLK
1
1207812t
1203212t
t
114511251105t
-1080-t
654525t
1054t
HP
t
HP
t
HP
Hz535047f
t
HP
1Vsync
Vertical Back Porch
Vertical Front Porch
Note : 1. tHB= t
tVB= t
HFP
VFP
+ tWH+t
+ tWV+t
VBP
VFP
HBP
VBP
45366t
1042t
The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode).
The performance of the electro-optical characteristics may be influenced by variance of the vertical refresh rate.
Ver. 1.0Nov. 28, 2006
13 /32
3-4. Signal Timing Waveforms
LC420WU2
Liquid Crystal Display
Product Specification
DCLK
First data
Second data
t
CLK
0.5 VDD
Invalid data
Invalid data
DE(Data Enable)
DE, Data
Pixel 0,0
Pixel 1,0
0.7VDD
Valid data
Pixel 2,0
Valid data
Pixel 3,0
0.3VDD
t
HV
Invalid data
Invalid data
t
DE(Data Enable)
Ver. 1.0Nov. 28, 2006
HT
11080
t
VV
t
VT
14 /32
LC420WU2
Liquid Crystal Display
Product Specification
3-5. Color 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 binary input, the brighter the color. Table 10 provides a reference for color versus data input.
Note : 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 V
3. The case when the T2/T5 exceed maximum specification, it operates protection
pattern(Black pattern) till valid signal inputted. There is no reliability problem.
4. 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.
5. If the on time of option signal(DISM or AI_Enable) precedes the on time of Power(VLCD),check the LCD logic
Power(Vcc) is under 0.8V, otherwise it will be happened abnormal display.
6. Flicker would come out when power on-off(T7=under 1s) is continuously tested over several ten-times
Ver. 1.0Nov. 28, 2006
LCD
to 0V.
16 /32
3-6-2. Sequence for Inverter
LC420WU2
Liquid Crystal Display
Product Specification
Power Supply For Inverter
V
BL
10%
0V
V
ON/OFF
V
BR-A &
V
BR-B
3-6-3. Deep condition for Inverter
24V (typ.)
90%
0.7V
T1T2T3T2
1000ms (Min)1000ms (Min)
T4
T5
Lamp ON
T7
T6
T4
V
: 24V
BL
VBL(Typ.) x 0.85
0 V
Table 12. Power Sequence for Inverter
Parameter
Values
MaxTypMin
Units
ms--20T1
ms--500T2
ms--200T3
-
ms--10T5
Remarks
1
2ms0T4
VBL(Typ) x 0.85ms10--T6
3ms--1000T7
Notes : 1. T1 describes rising time of 0V to 24V and this parameter does not applied at restarting time.
2. T4(max) is less than T2.
3. In T7 section, VBR-B is recommended 3.3V.
Ver. 1.0Nov. 28, 2006
17 /32
LC420WU2
Liquid Crystal Display
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ for 2Hrs 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 °.
FIG. 1 shows additional information concerning the measurement equipment and method.
Optical Stage(x,y)
LCD Module
FIG. 1 Optical Characteristic Measurement Equipment and Method
Table 13. OPTICAL CHARACTERISTICS
SymbolParameter
Contrast Ratio
Surface Luminance, white
Luminance Variation
Response Time
(Gray-to-Gray)
Color Coordinates
[CIE1931]
Viewing Angle (CR>10)
x axis, right(φ=0°)
x axis, left (φ=180°)
y axis, up (φ=90°)
y axis, down (φ=270°)
Gray-to-Gray
Rise + decay
RED
GREEN
BLUE
WHITE
CR with DCR-16001100
WH
WHITE
R +
Rx
Tr
Pritchard 880 or
equivalent
50cm
Ta= 25
± 2°C
, V
=12.0V, fV=60Hz, Dclk=148.5MHz VBR=1.65V
LCD
Value
MaxTypMin
-800600CR
-550400L
5P
168-G to G
D
0.638
0.340Ry
0.279Gx
Typ
-0.03
0.611Gy
0.146Bx
0.062By
0.279Wx
0.292Wy
-18-Tr
Typ
+0.03
-8985θr
-8985θl
-8985θu
-8985θd
2
ms
NoteUnit
1
2cd/m
31.3--δ
4
5degree
6Gray Scale
Ver. 1.0Nov. 28, 2006
18 /32
Note :
LC420WU2
Liquid Crystal Display
Product Specification
1. Contrast Ratio(CR) is defined mathematically as :
Contrast Ratio =
Surface Luminance with all white pixels
Surface Luminance with all black pixels
Measure Position : center 5point Max C/R (typical 800:1)
2. Surface Luminance(
L
) is the luminance value measured at an approximate 50cm distance from
WH
the center 1-point of LCD surface as all pixels displaying white. See FIG. 2 for more information.
3. The variation of surface luminance , δ WHITE is defined as :
δ WHITE(5P) = Maximum(L
Where L
on1
to L
are the luminance with all pixels displaying white at 5 locations .
on5
on1,Lon2
, L
on3
, L
on4
, L
) / Minimum(L
on5
on1,Lon2
, L
on3
, L
on4
, L
on5
)
For more information, see the FIG. 2.
4. Response time is defined as the required time for the transition from G(N) to G(M) (Rise Time, TrR)
and from G(M) to G(N) (Decay Time, TrD). For additional information see the FIG. 3. (N<M)
5. 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.
6. Gray scale specification
Gamma Value is approximately 2.2. For more information, see the Table 14.
Table 14. GRAY SCALE SPECIFICATION
Gray Level
L0
L15
L31
L47
L63
L79
L95
L111
L127
L143
L159
L175
L191
L207
L223
L239
L255
Ver. 1.0Nov. 28, 2006
Luminance [%] (Typ.)
0.19
0.39
1.16
2.61
4.80
7.77
11.6
16.2
21.7
28.2
35.5
43.8
53.0
63.3
74.5
86.7
100
Luminance [%] (Typ.) with DCR
0.06
0.24
0.82
1.90
3.64
6.37
9.8
13.9
18.5
24.0
31.1
38.1
46.7
56.9
69.5
83.8
100
19 /32
Product Specification
Measuring point for surface luminance & measuring point for luminance variation.
H
A
③③③③②②②②
LC420WU2
Liquid Crystal Display
V
①①①①
B
A : H / 4 mm
④④④④
FIG. 2 5 Points for Luminance Measure
Response time is defined as the following figure and shall be measured by switching the input signal for
“Gray(N)” and “Gray(M)”.
T
r
R
100
90
⑤⑤⑤⑤
T
r
D
B : V / 4 mm
H : 930.24 mm
V : 523.26 mm
@ H,V : Active Area
Optical
Response
10
0
Ver. 1.0Nov. 28, 2006
Gray(N)
N,M = 0(Black)~255(White), N<M
FIG. 3 Response Time
Gray(M)
Gray(N)
20 /32
Dimension of viewing angle range
LC420WU2
Liquid Crystal Display
Product Specification
φ
= 180°, Left
φ
= 270°, Down
Normal
θ
φ
FIG. 4 Viewing Angle
E
Y
φ
= 90°, Up
φ
= 0°, Right
Ver. 1.0Nov. 28, 2006
21 /32
Product Specification
5. Mechanical Characteristics
Table 15 provides general mechanical characteristics.
Table 15. MECHANICAL CHARACTERISTICS
LC420WU2
Liquid Crystal Display
ValueItem
983.0 mmHorizontal
Outline Dimension
Bezel Area
Active Display Area
Surface Treatment
13.0Kg (Typ.), 14.0Kg (Max.)Weight
Hard coating(3H)
Anti-glare treatment of the front polarizer (Haze 13%)
576.0 mmVertical
51.0 mmDepth
939.0 mmHorizontal
531.0 mmVertical
930.24 mmHorizontal
523.26 mmVertical
Note : 1.Please refer to a mechanic drawing in terms of tolerance at the next page.
Ver. 1.0Nov. 28, 2006
22 /32
<FRONT VIEW>
LC420WU2
Liquid Crystal Display
Product Specification
Ver. 1.0Nov. 28, 2006
23 /32
<REAR VIEW>
LC420WU2
Liquid Crystal Display
Product Specification
Ver. 1.0Nov. 28, 2006
24 /32
Product Specification
6. Reliability
Table 16. ENVIRONMENT TEST CONDITION
Vibration test
5
(operating)
LC420WU2
Liquid Crystal Display
ConditionTest ItemNo.
Ta= 50°C 240hHigh temperature storage test1
Ta= -20°C 240hLow temperature storage test2
Ta= 50°C 50%RH 240hHigh temperature operation test3
Ta= 0°C 240hLow temperature operation test4
Wave form : random
Vibration level : 1.0Grms
Bandwidth : 10-300Hz
Duration : X,Y,Z, 30 min
One time each direction
Shock test
6
(operating)
Altitude operating
8
storage / shipment
Shock level : 50Grms
Waveform : half sine wave, 11ms
Direction :±X, ±Y, ±Z
One time each direction
Ta= 40 °C ,90%RHHumidity condition Operation7
0 - 14,000 feet(4267.2m)
0 - 40,000 feet(12192m)
Ver. 1.0Nov. 28, 2006
25 /32
LC420WU2
Liquid Crystal Display
Product Specification
7. International Standards
7-1. Safety
a) UL 60065, 7thEdition, dated June 30, 2003, Underwriters Laboratories, Inc.,
Standard for Audio, Video and Similar Electronic Apparatus.
b) CAN/CSA C22.2, No. 60065:03, Canadian Standards Association,
Standard for Audio, Video and Similar Electronic Apparatus.
c) IEC60065:2001, 7thEdition CB-scheme and EN 60065:2002,
Safety requirements for Audio, Video and Similar Electronic Apparatus..
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),
1992
b) CISPR22 “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 Electro technical Standardization.(CENELEC), 1998
( Including A1: 2000 )
Ver. 1.0Nov. 28, 2006
26 /32
Product Specification
8. Packing
8-1. Designation of Lot Mark
a) Lot Mark
ABCDEFGHIJKLM
A,B,C : SIZE(INCH)
D : YEAR E : MONTH
F : PANEL CODEG : FACTORY CODE
H : ASSEMBLY CODE I,J,K,L,M : SERIAL NO.
Note
1. YEAR
Year
200320022001
200452005
2006720078200892009
LC420WU2
Liquid Crystal Display
2010
Mark
321
4
6
2. MONTH
Month
Mark
Apr5May
4
Jun7Jul8Aug9Sep
6
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.
0
Oct
A
Nov
B
DecMarFebJan
C421
8-2. Packing Form
a) Package quantity in one Pallet : 12 pcs
b) Pallet Size : 1150 mm X 1000 mm X 820 mm.
Ver. 1.0Nov. 28, 2006
27 /32
LC420WU2
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.
(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 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.
(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’t be operated
its 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.
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LC420WU2
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.
(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 normalhexane.
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LC420WU2
Liquid Crystal Display
#APPENDIX2
# APPENDIX- I
■LC420WU2-SLB1 Packing Ass’y
ProductSpecification
6
ANGLE PACKING7
Ver. 1.0Nov. 28, 2006
LCD Module1
PACKINGEPS5
PACKING
PAPER ANGLE8
BAND9
LABEL10
MATERIALDESCRIPTIONNO.
42INCHBAG2
MASKING 20MM X 50MTAPE3
PAPER 1140X1000X138MMPALLET4
EPS
PAPER
PAPER
PP
YUPO PAPER 80G 100x100
30 /32
LC420WU2
Liquid Crystal Display
#APPENDIX3
ProductSpecification
# APPENDIX- II
■ LCM Label
Model
LC420WU2
(SL)(B1)
RoHS Verified
Serial No.
UL, TUV Mark
LPL Logo
US PATENT No.Origin
■■■■ Serial No. (See CAS 25page for more information)
12345679101112
Inch
Ver. 1.0Nov. 28, 2006
MonthYear
M Ass’y Factory code
8
13
Serial No.
31 /32
LC420WU2
Liquid Crystal Display
#APPENDIX4
# APPENDIX- III
■ Pallet Label
LC420WU2
12
ProductSpecification
SLB1
RoHS Verified
Ver. 1.0Nov. 28, 2006
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