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LP140WD2
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 14.0"W HD+ TFT LCD
Customer Lenovo SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LP140WD2
Suffix TLD2
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY SIGNATURE APPROVED BY SIGNATURE
S. R. Kim / S.Manager
/
REVIEWED BY
/
M. J. Lee / Manager
/ PREPARED BY
C. W. Lee / Engineer
E. M. Lee / Engineer
Please return 1 copy for your confirmation with Products Engineering Dept.
your signature and comments. LG Display Co., Ltd
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LP140WD2
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
COVER 1
CONTENTS 2
RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTREISTICS 6-7
3-2 INTERFACE CONNECTIONS 8
3-3 LVDS SIGNAL TIMING SPECIFICATIONS 9-10
3-4 SIGNAL TIMING SPECIFICATIONS 11
3-5 SIGNAL TIMING WAVEFORMS 11
3-6 COLOR INPUT DATA REFERNECE 12
3-7 POWER SEQUENCE 13
4 OPTICAL SFECIFICATIONS 14-16
5 MECHANICAL CHARACTERISTICS 17-19
6 RELIABLITY 20
7 INTERNATIONAL STANDARDS 21
7-1 SAFETY
7-2 EMC
8 PACKING 22
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
8-3 LABEL DESCRIPTION
9 PRECAUTIONS 24
A APPENDIX A. Enhanced Extended Display Identification Data 26-28
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LP140WD2
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
EDID
Revision No Revision Date Page Description
ver
0.0 May. 26. 2011 All First Draft (Preliminary Specification) 0.0
0.1 Jun. 23, 2011 18-19 Update 2D Drawing 0.1
23 Added Label Description.
26-28 Update EDID Data
0.2 Nov.24, 2011 1 Update model name 0.2
4 Update General features
6 Update Electrical Specifications
8 Update Interface Connections (Connector)
13 Update Power Sequence
14 Update OPTICAL CHARACTERISTICS
15 Update Gray scale specification
19 Update Rear view
22 Update Packing
26-28 Update EDID Data
0.3 Dec.26, 2011 6 Update Electrical Specifications 0.2
0.4 Dec.30, 2011 18-19 Update 2D Drawing 0.2
0.5 Jan.27, 2012 11 Update Timing table (For LTE) 0.2
1.0 Feb.22, 2012 1 Update Cover 0.2
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LP140WD2
Liquid Crystal Display
Product Specification
1. General Description
The LP40WD2 is a Color Active Matrix Liquid Crystal Display with an integral LED backlight system. The
matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in
the normally white mode. This TFT-LCD has 14.0 inches diagonally measured active display area with HD+
resolution (1600 horizontal by 900 vertical 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 brightness of the sub-pixel color is
determined with a 6-bit gray scale signal for each dot, thus, presenting a palette of more than 262,144
colors. The LP140WD2 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP140WD2 is intended to support applications where thin thickness, low power are
critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-
pixels, the LP140WD2 characteristics provide an excellent flat display for office automation products such
as Notebook PC.
EEPROM Block
EEPROM Block
for EDID
for EDID
EEPROM Block
EEPROM Block 1 1600
for Tcon Operating
for Tcon Operating
User connector
TFT-LCD Panel
LVDS Timing Control
Timing Control (HD+, TN)
2port
(Tcon) Block
(Tcon) Block
Min
i- LVD 900
DVCC TCLKs S
40
AVCC, AVDD
Pin
VCC Power Source Driver
Power VGH, VGL, GMA
(Bottom Bent)
Block
Block GOE, GSP, GSC
VLED LED Driver VOUT_LED
LED Driver LED Backlight Ass'y
LED_EN FB1~4
PWM Block
Block
Control & Data Power EDID signal & Power
General Features
Active Screen Size 14.0 inches diagonal
Outline Dimension 320.4(H, typ) 187.1(V, typ) 3.6(D,max) [mm]
Pixel Pitch 0.1932mm 0.1932 mm
Pixel Format 1600 horiz. By 900 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 250 cd/m2(Typ.5 point)
Power Consumption Total 4.9 Watt (Typ.) @ mosaic Logic input 1.2 Watt (Typ.), B/L input 3.7 Watt (Typ.)
Weight 320g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Anti-glare treatment of the front polarizer(3H)
RoHS Comply Yes
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LP140WD2
Liquid Crystal Display
Product Specification
2. Absolute Maximum Ratings
The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.
Table 1. ABSOLUTE MAXIMUM RATINGS
Values
Parameter Symbol Units Notes
Min Max
Power Input Voltage VCC -0.3 4.0 Vdc at 25 r 5qC
Operating Temperature TOP 0 50 qC 1
Storage Temperature HST -20 60 qC 1
Operating Ambient Humidity HOP 10 90 %RH 1
Storage Humidity HST 10 90 %RH 1
Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39qC Max, and no condensation of water.
90% 80%
60 60%
Wet Bulb 50
Humidity[(%)RH]
Temperature [ ] Storage
40 40%
30 Operation
20
20%
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [ ]
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LP140WD2
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LP140WD2 requires two power inputs. The first logic is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. The second backlight is the input about LED BL with LED Driver.
Table 2. ELECTRICAL CHARACTERISTICS
Values
Parameter Symbol Unit Notes
Min Typ Max
LOGIC :
Power Supply Input Voltage VCC 3.0 3.3 3.6 V 1
Mosaic ICC - 360 414 mA 2
Power Supply Input Current Bliss ICC - 377 435 mA
Black ICC - 410 475 mA 3
Power Consumption (Mosaic) PCC - 1.2 1.37 W 2
Power Supply Inrush Current ICC_P - - 2000 mA 4
LVDS Impedance ZLVDS 90 100 110 5
BACKLIGHT : ( with LED Driver)
LED Power Input Voltage VLED 7.0 12.0 21.0 V 6
LED Power Input Current ILED - 308 354 mA 7
LED Power Consumption PLED - 3.7 4.25 W 7
LED Power Inrush Current ILED_P - - 2000 mA 8
PWM Duty Ratio 1 - 100 % 9
PWM Jitter - 0 - 0.2 % 10
PWM Impedance ZPWM 20 40 60 k
PWM Frequency FPWM 200 - 1000 Hz 11
PWM High Level Voltage VPWM_H 2.2 - 5.3 V
PWM Low Level Voltage VPWM_L 0 - 0.3 V
LED_EN Impedance ZPWM 20 40 60 k
LED_EN High Voltage VLED_EN_H 2.2 - 5.3 V
LED_EN Low Voltage VLED_EN_L 0 - 0.3 V
Life Time 12,000 - - Hrs 12
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LP140WD2
Liquid Crystal Display
Product Specification
Note)
1. The measuring position is the connector of LCM and the test conditions are under 25 , fv = 60Hz,
Black pattern.
2. The specified Icc current and power consumption are under
the Vcc = 3.3V , 25 , fv = 60Hz condition and Mosaic pattern.
3. This Spec. is the max load condition for the cable impedance designing.
4. The below figures are the measuring Vcc condition and the Vcc control block LGD used.
The Vcc condition is same as the minimum of T1 at Power on sequence.
3.3V
Rising time
Vcc 90%
0V 10%
0.5ms
5. This impedance value is needed for proper display and measured form LVDS Tx to the mating connector.
6. The measuring position is the connector of LCM and the test conditions are under 25 .
7. The current and power consumption with LED Driver are under the Vled = 12.0V , 25 , Dimming of
Max luminance and White pattern with the normal frame frequency operated(60Hz).
8. The below figures are the measuring Vled condition 12.0V
and the Vled control block LGD used. Rising time 90%
VLED control block is same with Vcc control block. VLED
0V 10%
0.5ms
9. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.
10. If Jitter of PWM is bigger than maximum, it may induce flickering.
11. This Spec. is not effective at 100% dimming ratio as an exception because it has DC level equivalent
to 0Hz. In spite of acceptable range as defined, the PWM Frequency should be fixed and stable for
more consistent brightness control at any specific level desired.
12. The life time is determined as the time at which brightness of LCD is 50% compare to that of minimum
value specified in table 7. under general user condition
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LP140WD2
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs two interface connections, a 40 pin connector used for the module electronics interface and
the other connector used for the integral backlight system.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin Symbol Description Notes
1 NC No Connection [Interface Chip]
2 VCC LCD Logic and driver power (3.3V Typ.) 1. LCD :
3 VCC LCD Logic and driver power (3.3V Typ.) SiW, SW0646(LCD Controller)
4 V EEDID DDC Power (3.3V) Including LVDS Receiver.
5 NC No Connection 2. System : SiW LVDSRx or equivalent
6 Clk EEDID DDC Clock * Pin to Pin compatible with LVDS
7 DATA EEDID DDC Data
[Connector]
8 ORX0- Negative LVDS differential data input
LSMtron GT05Q-40S-H10
9 ORX0+ Positive LVDS differential data input
10 GND LCM Ground
[Mating Connector]
11 ORX1- Negative LVDS differential data input Mating of IPEX 20455-040 or equivalent
12 ORX1+ Positive LVDS differential data input
13 GND LCM Ground [Connector pin arrangement]
14 ORX2- Negative LVDS differential data input
15 ORX2+ Positive LVDS differential data input
16 GND LCM Ground
17 ORXC- Negative LVDS differential clock input
18 ORXC+ Positive LVDS differential clock input [LCD Module Rear View]
19 GND LCM Ground
20 ERX0- Negative LVDS differential data input
21 ERX0+ Positive LVDS differential data input
22 GND LCM Ground
23 ERX1- Negative LVDS differential data input
24 ERX1+ Positive LVDS differential data input
25 GND LCM Ground
26 ERX2- Negative LVDS differential data input
27 ERX2+ Positive LVDS differential data input
28 GND LCM Ground
29 ERXC- Negative LVDS differential clock input
30 ERXC+ Positive LVDS differential clock input
31 GND LCM Ground (LED Backlight Ground)
32 GND LCM Ground (LED Backlight Ground)
33 GND LCM Ground (LED Backlight Ground)
34 NC No Connection
35 PWM System PWM Signal input for dimming
36 LED_EN LED Backlight On/Off
37 NC No Connection
38 VLED LED Backlight Power (7V-21V)
39 VLED LED Backlight Power (7V-21V)
40 VLED LED Backlight Power (7V-21V)
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LP140WD2
Liquid Crystal Display
Product Specification
3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
Symb
Description Min Max Unit Notes
ol
LVDS Differential Voltage |VID| 100 600 mV -
LVDS Common mode Voltage VCM 0.6 1.8 V -
LVDS Input Voltage Range VIN 0.3 2.1 V -
3-3-2. AC Specification
Description Symbol Min Max Unit Notes
85MHz > Fclk
tSKEW - 400 + 400 ps
65MHz
LVDS Clock to Data Skew Margin
65MHz > Fclk
tSKEW - 600 + 600 ps
25MHz
LVDS Clock to Clock Skew Margin (Even
tSKEW_EO - 1/7 + 1/7 Tclk -
to Odd)
Maximum deviation
FDEV - 3 % -
of input clock frequency during SSC
Maximum modulation frequency
FMOD - 200 KHz -
of input clock during SSC
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LP140WD2
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
Freq.
Fmax
Fcenter
Fmin
Time
< Spread Spectrum >
3-3-3. Data Format
1) LVDS 2 Port
< LVDS Data Format >
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LP140WD2
Liquid Crystal Display
Product Specification
3-4. Signal Timing Specifications
This is the signal timing required at the input of the User connector. All of the interface signal timing should be
satisfied with the following specifications and specifications of LVDS Tx/Rx for its proper operation.
Table 4. TIMING TABLE
Period
Width
Width-Active
Period
Width
Width-Active
Horizontal back porch HBP
Horizontal front porch
Vertical back porch
Vertical front porch
Appendix) All reliabilities are specified for timing specification based on refresh rate of 60 Hz.
Even though actual performance in 50Hz and 40Hz for low power is displayed normally,
remark and inform to user that display quality in 40 Hz and 50 Hz is out of guarantee range.
3-5. Signal Timing Waveforms Condition : VCC =3.3V
High: 0.7VCC
Low: 0.3VCC
tHP
Hsync t
WH
tHBP tWHA tHFP
Date Enable
tVP
tWV
Vsync tVFP
tVBP tWVA
Date Enable
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LP140WD2
Liquid Crystal Display
Product Specification
3-6. Color Input Data Reference
The brightness of each primary color (red,green and blue) is based on the 6-bit gray scale data input for the
color ; the higher the binary input, the brighter the color. The table below provides a reference for color
versus data input.
Table 5. COLOR DATA REFERENCE
Input Color Data
RED GREEN BLUE
Color
MSB LSB MSB LSB MSB LSB
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 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
Red 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0
Green 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
Basic Blue 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
Color Cyan 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1
Magenta 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1
Yellow 1 1 1 1 1 1 1 1 1 1 1 1 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
RED (00) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (01) 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
RED ... ... ... ...
RED (62) 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0
RED (63) 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (00) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GREEN (01) 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
GREEN ... ... ... ...
GREEN (62) 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0
GREEN (63) 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
BLUE (00) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BLUE (01) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
BLUE ... ... ... ...
BLUE (62) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0
BLUE (63) 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
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LP140WD2
Liquid Crystal Display
Product Specification
3-7. Power Sequence
90% 90%
Power Supply Input
VCC
0V 10% 10%
T3 T7 T4
T1 T2 Valid Data
Interface Signal, Vi
LVDS
0V
T5 3.0V 3.0V T6
LED BL
0V (Off)
On/Off Control Signal
LED_EN
T9 T10
LED BL Valid Data
Dimming Control Signal 0V (Low)
PWM
T8 T11
90% 90%
LED Driver Input Voltage
VLED 0V 10% T12 T13 10%
Table 6. POWER SEQUENCE TABLE
Logic Value LED Value
Units Units
Parameter Min. Typ. Max. Parameter Min. Typ. Max.
T1 0.5 - 10 ms T8 0 - - ms
T2 0 - 50 ms T9 0 - - ms
T3 0 - - ms T10 0 - - ms
T4 150 - - ms T11 0 - - ms
T5 200 - - ms T12 0.5 - - ms
T6 0 - - ms T13 0 - - ms
T7 0 - 10 ms
Note)
1. Do not insert the mating cable when system turn on.
2. Valid Data have to meet "3-3. LVDS Signal Timing Specifications"
3. LVDS, LED_EN and PWM need to be on pull-down condition on invalid status.
4. LGD recommend the rising sequence of VLED after the Vcc and valid status of LVDS turn on.
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LP140WD2
Liquid Crystal Display
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been `ON' and stable for approximately 20 minutes in
a dark environment at 25qC. The values specified are at an approximate distance 50cm from the LCD surface
at a viewing angle of ) and 4 equal to 0q.
FIG. 1 presents additional information concerning the measurement equipment and method.
FIG. 1 Optical Characteristic Measurement Equipment and Method
LCD Module Equipment
Optical Stage(x,y)
500mm 50mm
Table 7. OPTICAL CHARACTERISTICS
Ta=25qC, VCC=3.3V, fV=60Hz, fCLK= 53.9MHz
Values
Parameter Symbol Units Notes
Min Typ Max
Contrast Ratio CR - 400 - 1
Surface Luminance, white LWH 210 250 - cd/m2 2
G WHITE_5P 70 - - %
Luminance Variation 3
G WHITE_13P 60 70 - %
Response Time - 16 25 ms 4
Color Coordinates
RED RX 0.563 0.588 0.613
RY 0.325 0.350 0.375
GREEN GX 0.307 0.332 0.357
GY 0.533 0.558 0.583
BLUE BX 0.130 0.155 0.180
BY 0.098 0.123 0.148
WHITE WX 0.283 0.313 0.343
WY 0.299 0.329 0.359
Viewing Angle 5
x axis, right()=0q) 4r 40 45 - degree
x axis, left ()=180q) 4l 40 45 - degree
y axis, up ()=90q) 4u 10 15 - degree
y axis, down ()=270q) 4d 30 35 - degree
Gray Scale 6
Color Gamut - 45 - %
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LP140WD2
Liquid Crystal Display
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
2. Surface luminance is the average of 5 point across the LCD surface 50cm from the surface with
all pixels displaying white. For more information see FIG 1.
LWH = Average(L1,L2, ... L5)
3. The variation in surface luminance , The panel total variation (G WHITE) is determined by measuring LN
at each test position 1 through 13 and then defined as followed numerical formula.
For more information see FIG 2.
Maximum(L1,L2, ... L13)
G WHITE =
Minimum(L1,L2, ... L13)
4. Response time is the time required for the display to transition from white to black (rise time, TrR) and
from black to white(Decay Time, TrD). For additional information see FIG 3.
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 surface. For more information see FIG 4.
6. Gray scale specification * fV = 60Hz
Gray Level Luminance [%] (Typ)
L0 0.16
L7 1.05
L15 4.66
L23 11.2
L31 20.8
L39 34.7
L47 52.1
L55 73.4
L63 100
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LP140WD2
Liquid Crystal Display
Product Specification
FIG. 2 Luminance
H
A D
L6 L7 L8
C
H,V : ACTIVE AREA
A : H/4 mm
L2 L3 B : V/4 mm
C : 10 mm
B
D : 10 mm
POINTS : 13 POINTS
V
L9 L1 L10
Center Point
L4 L5
L11 L12 L13
FIG. 3 Response Time
The response time is defined as the following figure and shall be measured by switching the input signal
for "black" and "white".
TrR TrD
%
100
90
Optical
Response
10
0 white white
black
FIG. 4 Viewing angle Normal
Eye Y
I = 90 q , Up
I = 180 q ,
Left T
I
I = 0q ,
Right
I = 270 q ,
Down
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LP140WD2
Liquid Crystal Display
Product Specification
5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model LP140WD2.
In addition the figures in the next page are detailed mechanical drawing of the LCD.
Horizontal 320.4r 0.5mm
Outline Dimension Vertical 187.1r 0.5mm
Thickness 3.6mm (max)
Bezel Area Horizontal 313.40 r 0.5mm
(Pol. Size) Vertical 177.45 r 0.5mm
Horizontal 309.12 mm
Active Display Area
Vertical 173.88 mm
Weight 320g (Max.)
Surface Treatment Anti glare treatment of the front polarizer(3H)
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LP140WD2
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP140WD2
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP140WD2
Liquid Crystal Display
Product Specification
6. Reliability
Environment test condition
No. Test Item Conditions
1 High temperature storage test Ta= 60qC, 240h
2 Low temperature storage test Ta= -20qC, 240h
3 High temperature operation test Ta= 50qC, 50%RH, 240h
4 Low temperature operation test Ta= 0qC, 240h
5 Vibration test (non-operating) Sine wave, 10 ~ 500 ~ 10Hz, 1.5G, 0.37oct/min
3 axis, 1hour/axis
6 Shock test (non-operating) Half sine wave, 180G, 2ms
one shock of each six faces(I.e. run 180G 2ms
for all six faces)
7 Altitude operating 0 ~ 10,000 feet (3,048m) 24Hr
storage / shipment 0 ~ 40,000 feet (12,192m) 24Hr
{ Result Evaluation Criteria }
There should be no change which might affect the practical display function when the display quality
test is conducted under normal operating condition.
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Liquid Crystal Display
Product Specification
7. International Standards
7-1. Safety
a) UL 60950-1, Second Edition, Underwriters Laboratories Inc.
Information Technology Equipment - Safety - Part 1 : General Requirements.
b) CAN/CSA C22.2 No.60950-1-07, Second Edition, Canadian Standards Association.
Information Technology Equipment - Safety - Part 1 : General Requirements.
c) EN 60950-1:2006 + A11:2009, European Committee for Electrotechnical Standardization (CENELEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
d) IEC 60950-1:2005, Second Edition, The International Electrotechnical Commission (IEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
7-2. EMC
a) ANSI C63.4 "American National Standard for Methods of Measurement of Radio-Noise
Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz."
American National Standards Institute (ANSI), 2003.
b) CISPR 22 "Information technology equipment