Service Manuals, User Guides, Schematic Diagrams or docs for : . Various LCD Panels Panel_LG-Philips_LCD_LC420WXN-SAA1_0_[DS]
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
![Panel_LG-Philips_LCD_LC420WXN-SAA1_0_[DS]](/pics/5eaf65d339c2d.gif)
>> Download Panel_LG-Philips_LCD_LC420WXN-SAA1_0_[DS] documenatation <<
Text preview - extract from the document
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 42.0" WXGA TFT LCD
BUYER SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LD420WXN
SUFFIX SAA1
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE SIGNATURE
APPROVED BY APPROVED BY
DATE DATE
/ Y. S Park / S. Manager
REVIEWED BY
/ M. K Lee / Manager
PREPARED BY
/ J. H Kim / Engineer
Please return 1 copy for your confirmation with TV Products Development Dept.
your signature and comments. LG Display Co., Ltd
Ver. 0.0 1 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
CONTENTS
Number ITEM Page
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6
3-1 ELECTRICAL CHARACTERISTICS 6
3-2 INTERFACE CONNECTIONS 8
3-3 SIGNAL TIMING SPECIFICATIONS 10
3-4 SIGNAL TIMING WAVEFORMS 11
3-5 COLOR DATA REFERENCE 12
3-6 POWER SEQUENCE 13
4 OPTICAL SPECIFICATIONS 15
5 MECHANICAL CHARACTERISTICS 20
6 RELIABILITY 22
7 INTERNATIONAL STANDARDS 23
7-1 SAFETY 23
7-2 EMC 23
8 PACKING 24
8-1 DESIGNATION OF LOT MARK 24
8-2 PACKING FORM 24
9 PRECAUTIONS 25
9-1 MOUNTING PRECAUTIONS 25
9-2 OPERATING PRECAUTIONS 25
9-3 ELECTROSTATIC DISCHARGE CONTROL 26
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 26
9-5 STORAGE 26
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 26
9-7 APPROPRIATE CONDITION FOR PUBLIC DISPLAY 26
Ver. 0.0 2 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.0 Jan, 24, 2007 - Preliminary Specification(First Draft)
Ver. 0.0 3 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
1. General Description
The LC420WXN is a Color Active Matrix Liquid Crystal Display with an integral External Electrode Fluorescent
Lamp(EEFL) 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 42.0 inch diagonally measured
active display area with WXGA resolution (768 ver tical by 1366 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,
thus presenting a palette of more than 16.7M(true) colors.
It has been designed to apply the 8-bit 1-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.
EEPROM Mini-LVDS(RGB)
(LUT) Source Driver Circuit
+12.0V
SCL SDA S1 S1366
LVDS 5pair
G1
SDRAM
Gate Driver Circuit
Select #9
LVDS Rx (Receiver)
DCR CN5
DCR & ODC Controller
Enable #10 (30pin)
Timing Controller
TFT - LCD Panel
VBR_EXT #28 (1366 RGB 768 pixels)
VBR_OUT #27
G768
Power Circuit
Block
+24.0V, VBR-A,
VBR-B, On/off Back light Assembly
Inverter (Master, 14Pin, High)
General Features
Active Screen Size 42.02 inches(1067.308mm) diagonal
Outline Dimension 983 mm(H) x 576 mm(V) x 51 mm(D) (Typ.)
Pixel Pitch 0.227mm x 0.681mm x RGB
Pixel Format 1366 horiz. by 768 vert. Pixels RGB stripe arrangement
Color Depth 8-bit, 16.7 M colors
Luminance, White 500 cd/m2 (Center 1-point) (Typ.)
Viewing Angle (CR>10) Viewing Angle Free ( R/L 178 (Typ.), U/D 178 (Typ))
Power Consumption Total 165.4 W (Typ.) (Logic=5.40 W, Inverter=160W [VBR-A = 1.65V] )
Weight 10.5 Kg (Typ.)
Display Operating Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 13%)
Possible Display Type Landscape and Portrait Enabled
Ver. 0.0 4 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
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
Parameter Symbol Unit Remark
Min Max
Power Input LCD circuit VLCD +8.0 +14.0 V [DC] r
Voltage Inverter VBL -0.3 27.0 V [DC]
Inverter Control ON/OFF VOFF / VON -0.3 +5.5 V [DC]
Voltage Brightness VBR 0.0 +5.0 V [DC]
Operating Temperature TOP 0 +50 C
Storage Temperature TST -20 +60 C
Note 1
Operating Ambient Humidity HOP 10 90 %RH
Storage Humidity HST 10 90 %RH
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%
50 Storage
Humidity [(%)RH]
Wet Bulb
Temperature [ C]
40
40%
Operation
30
20
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [ C]
Ver. 0.0 5 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
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 input power for the
EEFL/Backlight is to power inverter.
Table 2. ELECTRICAL CHARACTERISTICS
Value
Parameter Symbol Unit Note
Min Typ Max
Circuit :
Power Input Voltage VLCD 11.4 12.0 12.6 V [DC]
- 450 585 mA 1
Power Input Current ILCD
- 500 650 mA 2
Power Consumption PLCD 5.4 7.0 Watt 1
Rush current IRUSH - - 3.0 A 3
Note : 1. The specified current and power consumption are under the VLCD=12.0V, 25 r 2 C, fV=60Hz
condition whereas mosaic pattern(8 x 6) is displayed and fV is 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
Mosaic Pattern(8 x 6)
Ver. 0.0 6 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
Values
Parameter Symbol Unit Notes
Min Typ Max
Inverter :
Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1
Power Supply Input Voltage Ripple - - 0.5 Vp-p 1
- 6.7 7.2 A VBR-A = 1.65V ... 1
After Aging IBL_A
Power Supply - 7.2 7.7 A VBR-A = 3.30V ... 1
Input Current - 7.2 7.7 A VBR-A = 1.65V ... 2
Before Aging IBL_B
- 7.7 8.2 A VBR-A = 3.30V ... 2
VBL = 22.8V
Power Supply Input Current (In-Rush) Irush - - 9.3 A VBR-B = 3.3V
VBR-A = 1.65V
Power Consumption PBL - 160 172 W VBR-A = 1.65V ... 1
Brightness Adjust VBR-A 0.0 1.65 3.3 Vdc
Input Voltage for On V on 2.5 - 5.0 Vdc
Control System On/Off
Signals Off V off -0.3 0.0 0.8 Vdc
Brightness Adjust VBR-B 0 - 3.3 V
Lamp:
Discharge Stabilization Time Ts 3 min 3
Life Time 50,000 Hrs 4
Notes :
1. Electrical characteristics are determined after the unit has been `ON' and stable for approximately 30
minutes at 25 2 C. The specified current and power consumption are under the typical supply Input voltage
24Vand VBR (VBR-A : 1.65V & VBR-B :3.3V), it is total power consumption.
The ripple voltage of the power supply input voltage is under 0.5 Vp-p. LPL recommend Input Voltage is
24.0V 5%.
2. Electrical characteristics are determined within 30 minutes at 25 2 C.
The specified currents are under the typical supply Input voltage 24V.
. 3. The brightness of the lamp after lighted for 5minutes is defined as 100%.
TS is the time required for the brightness of the center of the lamp to be not less than 95% at typical current.
The screen of LCD module may be partially dark by the time the brightness of lamp is stable after turn on.
4. Specified Values are for a single lamp which is aligned horizontally.
The life time is determined as the time which luminance of the lamp is 50% compared to that of initial value
at the typical lamp current (VBR-A : 1.65V & VBR-B :3.3V), on condition of continuous operating at 25 r 2 C
5. LPL recommend that the PWM freq. is synchronized with Two times harmonic of Vsync signal of system.
6. The duration of rush current is about 20ms.
Ver. 0.0 7 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
3-2. Interface Connections
This LCD module employs two kinds of interface connection, a 30-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(CN5) : FI-X30SSL-HF (Manufactured by JAE) or Equivalent
- Mating Connector : FI-30C2L (Manufactured by JAE) or Equivalent
Table 4. MODULE CONNECTOR(CN5) PIN CONFIGURATION
Pin No. Symbol Description Note
1 VLCD Power Supply +12.0V
2 VLCD Power Supply +12.0V
3 VLCD Power Supply +12.0V
4 VLCD Power Supply +12.0V
5 GND Ground
6 GND Ground
7 GND Ground
8 GND Ground
9 Select Select LVDS Data format 1
10 ` ' ` ' 2
11 GND Ground
12 RA- LVDS Receiver Signal(-)
13 RA+ LVDS Receiver Signal(+)
14 GND Ground
15 RB- LVDS Receiver Signal(-)
16 RB+ LVDS Receiver Signal(+)
17 GND Ground
18 RC- LVDS Receiver Signal(-)
19 RC+ LVDS Receiver Signal(+)
20 GND Ground
21 RCLK- LVDS Receiver Clock Signal(-)
22 RCLK+ LVDS Receiver Clock Signal(+)
23 GND Ground
24 RD- LVDS Receiver Signal(-)
25 RD+ LVDS Receiver Signal(+)
26 GND Ground
27 VBR_OUT
28 VBR_EXT
29 GND Ground
30 GND Ground 3
Notes: 1. The pin no 9 is an option pin for DISM or LG format. ( VESA Format = "GND" / JEIDA Format ="VCC")
Please refer to Appendix for further details.
2. The pin no 10 is an option pin for DCR Function ( Enable = "VCC" / Disable ="GND")
3. The pin no 30 is LCD Test option.
LCM operates "AGP" (Auto Generation 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.
LPL recommends "NSB". ( AGP : "VCC" or "OPEN" / NSB : "GND" )
4. All GND (ground) pins should be connected together, which should be also connected to the LCD
module's metal frame.
5. All VLCD (power input) pins should be connected together.
6. Input Levels of LVDS signals are based on the IEA 664 Standard.
Ver. 0.0 8 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
3-2-2. Backlight Inverter
- Inverter Connector : S14B-PH-SMC (JST) or Equivalent
- Mating Connector : PHR-14 or Equivalent
Table 5. INVERTER CONNECTOR PIN CONFIGULATION
Pin No Symbol Description Note
1 VBL Power Supply +24.0V
2 VBL Power Supply +24.0V
3 VBL Power Supply +24.0V
4 VBL Power Supply +24.0V
5 VBL Power Supply +24.0V
6 GND Backlight Ground
7 GND Backlight Ground
8 GND Backlight Ground 1
9 GND Backlight Ground
10 GND Backlight Ground
Analog dimming voltage
11 VBR-A 2, 3
DC 0.0V ~ 3.3V (Typ : 1.65V)
12 On/Off 0.0V ~ 5.0V
Burst dimming voltage
13 VBR-B 3
DC 0.0V ~ 3.3V
Normal : Upper 3.0V
14 Status 4
Abnormal : Under 0.7V
Notes : 1. GND should be connected to the LCD module's metal frame.
2. If Pin #11 is open, VBR-A = 1.65V. When apply over 1.65V( ~ 3.3V) continuously,
its luminance is increasing however lamp's life time is decreasing.
It could be usable for boost up luminance when using DCR (=Dynamic contrast ratio) function only.
3. Minimum Brightness : VBR-B =0V Maximum Brightness : VBR-B = 3.3V
4. Even though Pin #14 is open, there is no effect on inverter operating, The output terminal of inverter.
5. Each impedance of pin #11,12 and 13 is 300[k ], 80[k ], 75[k ]
Pin Number of Inverter Connector
PCB
14
...
...
1
Ver. 0.0 9 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
3-3. Signal Timing Specifications
Table 6 and Table 7 show 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 for NTSC &PAL [ DE (Data Enable) Only ]
ITEM Symbol Min Typ Max Unit Note
Period tCLK 12.5 13.8 15.8 ns
DCLK
Frequency - 63 72.4 80 MHz
Period tHT 1456 1528 1920 tCLK
Horizontal Valid tHV 1366 1366 1366 tCLK
Horizontal Blank - tHP- tHV 162 tHP- tHV
Hsync Frequency fH 45 47.4 50 KHz
Width tWH - 32 - tCLK
Horizontal Back Porch tHBP 24 48 -
Horizontal Front Porch tHFP 40 80 -
Period tVT 776 790 1063 tHP
Vertical Valid tVV 768 768 768 tHP
Vertical Blank - tVP- tVV 22 tVP- tVV tHP
Note 1)
Vsync Frequency fV 47 60 63 Hz
PAL : 47~53Hz
Width tWV - 5 - tHP NTSC : 57~63Hz
Vertical Back Porch tVBP 5 15 - Hz
Vertical Front Porch tVFP 1 2 - tHP
Note : 1. The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode).
If you use spread spectrum for 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. Timing should be set based on clock frequency.
Ver. 0.0 10 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
3-4. Signal Timing Waveforms
0.7VDD
DE, Data
0.3VDD
tCLK
DCLK 0.5 VDD
Valid data
Data Invalid data Pixel 0,0 Pixel 2,0 Invalid data
DE(Data Enable)
* tHB = tHFP + tWH +tHBP
* Reference : Sync. Relation
* tVB = tVFP + tWV +tVBP
tHP
HSync tWH
tHBP tHV tHFP
DE(Data Enable)
tVP
tWV
VSync
tVBP tVV tVFP
DE(Data Enable)
Ver. 0.0 11 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
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 8 provides a reference for color versus data input.
Table 7. COLOR DATA REFERENCE
Input Color Data
RED GREEN BLUE
Color 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Red (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Green (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
Basic Blue (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Color Cyan 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Magenta 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
RED (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (001) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED ... ... ... ...
RED (254) 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
GREEN ... ... ... ...
GREEN (254) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0
GREEN (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
BLUE (000) Dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BLUE (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
BLUE ... ... ... ...
BLUE (254) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0
BLUE (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Ver. 0.0 12 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
3-6. Power Sequence
3-6-1. LCD Driving circuit
90% 90%
Power Supply For LCD
VLCD 10% 10%
0V
T1 T2 T5 T6
Valid Data
Interface Signal (Tx)
T3 T4
T7 T8
Option Signal
(LVDS_select, DCR_Enable, BIT_select)
Lamp ON
Power for Lamp
Table 8. POWER SEQUENCE
Value
Parameter Unit Notes
Min Typ Max
T1 0.5 - 20 ms
T2 0.5 - - ms 4
T3 3 x (1/fV) - - ms 3
T4 200 - - ms 3
T5 0 - - ms
T6 2.0 - - s 5
T7 0 - T2 ms 4
T8 0 - - ms 4
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 VLCD to 0V.
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. If the on time of signals(Interface signal and Option signals) precedes the on time of Power(V LCD),
check the LCD logic Power(Vcc) is under 0.8V, otherwise it will be happened abnormal display.
5. T6 should be measured after the Module has been fully discharged between power off and on
period.
Ver. 0.0 13 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
3-6-2. Sequence for Inverter
Power Supply For Inverter
24V (typ.)
90%
VBL
10% 0.7V
0V
T1 T2 1000ms (Min) T5 T3 T2 1000ms (Min)
VON/OFF
T4 T4
VBR-A & Lamp ON
VBR-B
T7
3-6-3. Deep condition for Inverter
T6
VBL : 24V
VBL(Typ.) x 0.8
0V
Table 9. Power Sequence for Inverter
Values
Parameter Units Remarks
Min Typ Max
T1 20 - - ms 1
T2 500 - - ms
T3 200 - - ms
T4 0 - ms 2
T5 10 - - ms
T6 - - 10 ms VBL(Typ) x 0.8
T7 1000 - - ms 3
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. 0.0 14 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
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 an approximate distance 50cm from the LCD surface at a viewing angle
of ) and T equal to 0 .
It is presented additional information concerning the measurement equipment and method in FIG. 1.
LCD Module Pritchard 880 or
Optical Stage(x,y)
equivalent
50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method
Ta= 25 2 C, VLCD=12.0V, fV=60Hz, Dclk=72.4MHz,
Table 10. OPTICAL CHARACTERISTICS VBR-A=1.65V, VBR-B=3.3V (Except DCR Function)
Value
Parameter Symbol Unit Note
Min Typ Max
Contrast Ratio CR 600 800 1
Surface Luminance, white LWH 400 500 cd/m2 2
Luminance Variation G WHITE 5P 1.3 3
Response Time Gray-to-Gray G to G - 9 14 ms 4
Rx TBD
RED
Ry TBD
Gx TBD
GREEN
Color Coordinates Gy Typ TBD Typ
[CIE1931] Bx -0.03 TBD +0.03
BLUE
By TBD
Wx 0.279
WHITE
Wy 0.292
Viewing Angle (CR>10)
x axis, right(I=0 ) Tr 89 - -
x axis, left (I=180 ) Tl 89 - -
degree 5
y axis, up (I=90 ) Tu 89 - -
y axis, down (I=270 ) Td 89 - -
Gray Scale - 2.2 - 6
Ver. 0.0 15 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
Notes :1. Contrast Ratio(CR) is defined mathematically as :
CR(Contrast Ratio) = Maximum CRn (n=1, 2, 3, 4, 5)
Surface Luminance at position n with all white pixels
CRn =
Surface Luminance at position n with all black pixels
n = the Position number(1, 2, 3, 4, 5). For more information, see FIG 2.
2. Surface luminance are determined after the unit has been `ON' and 30min 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 , G WHITE is defined as :
G WHITE(5P) = Maximum(Lon1,Lon2, Lon3, Lon4, Lon5) / Minimum(Lon1,Lon2, Lon3, Lon4, Lon5)
Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations .
For more information, see the FIG. 2.
4. Response time is the time required for the display to 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
Ver. 0.0 20 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
Ver. 0.0 21 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
6. Reliability
Table 13. ENVIRONMENT TEST CONDITION
No. Test Item Condition
1 High temperature storage test Ta= 60 C 240h
2 Low temperature storage test Ta= -20 C 240h
3 High temperature operation test Ta= 50 C 50%RH 240h
4 Low temperature operation test Ta= 0 C 240h
Wave form : random
Vibration level : 1.0Grms
Vibration test
5 Bandwidth : 10-300Hz
(operating)
Duration : X,Y,Z, 30 min
One time each direction
Shock level : 50Grms
Shock test Waveform : half sine wave, 11ms
6
(operating) Direction : X, Y, Z
One time each direction
7 Humidity condition Operation Ta= 40 C ,90%RH
Altitude operating 0 - 14,000 feet(4267.2m)
8
storage / shipment 0 - 40,000 feet(12192m)
Note : Before and after Reliability test, LCM should be operated with normal function.
Ver. 0.0 22 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
7. International Standards
7-1. Safety
a) UL 60065, 7th Edition, 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, 7th Edition 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) CISPR13 "Limits and Methods of Measurement of Radio interference characteristics of Sound
and Television broadcast receivers and associated equipment"
CISPR22 "Limits and Methods of Measurement of Radio interference characteristics of Information
Technology Equipment" International Special Committee on Radio Interference.
c) EN55013 "Limits and Methods of Measurement of Radio interference characteristics of Sound and
Television broadcast receivers and associated equipment"
EN55022 "Limits and Methods of Measurement of Radio interference characteristics of Information
Technology Equipment" European Committee for Electro Technical Standardization.(CENELEC),
1988(Including A1:2000)
Ver. 0.0 23 / 27
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory! www.panelook.com
Global LCD Panel Exchange Center www.panelook.com
LD420WXN
Product Specification
8. Packing
8-1. Designation of Lot Mark
a) Lot Mark
A B C D E F G H I J K L M
A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.
Note
1. YEAR
Year 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Mark 1 2 3 4 5 6 7 8 9 0
2. MONTH
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mark 1 2 3 4 5 6 7 8 9 A B C
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.
8-2. Packing Form
a) Package quantity ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo