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LP156WH2
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 15.6" HD TFT LCD
Customer HP SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LP156WH2
Suffix TLRB
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY SIGNATURE APPROVED BY SIGNATURE
Hans Kim / S.Manager
/
REVIEWED BY
/
S. R. Kim / Manager
/ PREPARED BY
J. P. Lee / Engineer
B. I. Park / Engineer
Please return 1 copy for your confirmation with Products Engineering Dept.
your signature and comments. LG Display Co., Ltd
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LP156WH2
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 SPECIFICATION 9-10
3-3 SIGNAL TIMING SPECIFICATIONS 11
3-4 SIGNAL TIMING WAVEFORMS 11
3-5 COLOR INPUT DATA REFERNECE 12
3-6 POWER SEQUENCE 13
4 OPTICAL SFECIFICATIONS 14-16
5 MECHANICAL CHARACTERISTICS 17-20
A APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN 21-23
6 RELIABLITY 24
7 INTERNATIONAL STANDARDS
7-1 SAFETY 25
7-2 EMC 25
7-3 Environment 25
8 PACKING
8-1 DESIGNATION OF LOT MARK 26
8-2 PACKING FORM 26
9 PRECAUTIONS 27-28
A APPENDIX. Enhanced Extended Display Identification Data 29-31
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LP156WH2
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
EDID
Revision No Revision Date Page Description
ver
1.0 Mar. 02, 2010 - First Draft (Final Specification) 1.0
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LP156WH2
Liquid Crystal Display
Product Specification
1. General Description
The LP156WH2 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
type display operating in the normally white mode. This TFT-LCD has 15.6 inches diagonally measured
active display area with HD resolution(768 vertical 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 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 LP156WH2 has been designed to apply the interface method that enables
low power, high speed, low EMI. The LP156WH2 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 LP156WH2 characteristics provide an excellent flat display for office
automation products such as Notebook PC.
EEPROM Block
EEPROM Block 1 1366
for EDID
for EDID
TFT-LCD Panel
User connector
LVDS Timing Control
Timing Control (HD, DRD, TN)
1port
(Tcon) Block
(Tcon) Block
Min
i-LV 768
D S
DVCC TCLKs
DVCC, AVDD
VCC Power Source Driver
40 Power VGH, VGL, GMA
(Bottom Bent)
Pin
Block
Block GIP CLKs, DSC
VLED VOUT_LED
LED Driver
LED Driver FB
LED Backlight Ass'y
LED_EN Block
Block
PWM
Control & Data Power EDID signal & Power
General Features
Active Screen Size 15.6 inches diagonal
Outline Dimension 359.3(H, typ) 209.5(V, typ) 5.5(D,max) [mm]
Pixel Pitch 0.252mm 0.252 mm
Pixel Format 1366 horiz. By 768 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 200 cd/m2(Typ.5 point)
Power Consumption Total 4.7W (Typ.) @ LCM circuit 1.5 W (Typ.), B/L input 3.2 W (Typ.)
Weight 450g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Anti-Glare treatment of the front polarizer
RoHS Compliance Yes
BFR / PVC / As Free Yes for all
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LP156WH2
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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LP156WH2
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LP156WH2 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
Power Supply Input Current ICC - 445 515 mA 2
Power Consumption PCC - 1.5 1.7 W 2
Power Supply Inrush Current ICC_P - - 1500 mA 3
LVDS Impedance ZLVDS 90 100 110 4
BACKLIGHT : ( without LED Driver)
LED Power Input Voltage VLED 7.0 12.0 20.0 V 5
LED Power Input Current ILED - 265 - mA 6
LED Power Consumption PLED - 3.2 3.5 W 6
LED Power Inrush Current ILED_P - - 1500 mA 7
PWM Duty Ratio - 5 - 100 % 8
PWM Jitter - 0 - 0.3 % 9
PWM Impedance ZPWM 20 40 60 k
PWM Frequency FPWM 200 - 1000 Hz 10
PWM High Level Voltage VPWM_H 3.0 - 5.3 V
PWM Low Level Voltage VPWM_L 0 - 0.5 V
LED_EN Impedance ZLED_EN 20 40 60 k
LED_EN High Voltage VLED_EN_H 3.0 - 5.3 V
LED_EN Low Voltage VLED_EN_L 0 - 0.5 V
Life Time 15,000 - - Hrs 11
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 whereas Mosaic pattern
is displayed and fv is the frame frequency.
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LP156WH2
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3. The below figures are the measuring Vcc condition and the Vcc control block LGD used.
The Vcc condition is same the minimum of T1 at Power on sequence.
3.3V
Rising time
Vcc 90%
0V 10%
0.5ms
4. This impedance value is needed to proper display and measured form LVDS Tx to the mating connector.
5. The measuring position is the connector of LCM and the test conditions are under 25 .
6. The current and power consumption with LED Driver are under the VLED = 12.0V , 25 , Dimming of
Max luminance whereas White pattern is displayed and fv is the frame frequency.
7. The below figures are the measuring VLED condition
and the VLED control block LGD used. 12.0V
VLED control block is same with Vcc control block. Rising time 90%
VLED
0V 10%
0.5ms
8. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.
9. If Jitter of PWM is bigger than maximum. It may cause flickering.
10. 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.
11. The life time is determined as the time at which the typical brightness of LCD is 50% compare to that of
initial value at the typical LED current. These LED backlight has 4 strings on it and the typical current
of LED's string is base on 21mA.
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LP156WH2
Liquid Crystal Display
Product Specification
3-2. Interface Connections
This LCD employs one interface connections, a 40 pin connector is used for the module electronics interface
and LED Driver.
The electronics interface connector is a model 20455-040E-0x manufactured by I-PEX.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)
Pin Symbol Description Notes
1 NC No connection
2 VCC Power Supply, 3.3V Typ.
3 VCC Power Supply, 3.3V Typ.
4 V EEDID DDC 3.3V power
1, Interface chips
5 NC No Connection 1.1 LCD : SW, SW0633 (LCD Controller)
6 Clk EEDID DDC Clock including LVDS Receiver
7 DATA EEDID DDC Data 1.2 System : THC63LVDF823A
or equivalent
8 Odd_RIN 0- Negative LVDS differential data input * Pin to Pin compatible with LVDS
9 Odd_RIN 0+ Positive LVDS differential data input
10 GND Ground 2. Connector
2.1 LCD :20455-040E-0x, I-PEX
11 Odd_RIN 1- Negative LVDS differential data input
or its compatibles
12 Odd_RIN 1+ Positive LVDS differential data input 2.2 Mating : 20453-040T-0x, I-PEX
13 GND Ground or equivalent.
2.3 Connector pin arrangement
14 Odd_RIN 2- Negative LVDS differential data input
15 Odd_RIN 2+ Positive LVDS differential data input
16 GND Ground
17 Odd_CLKIN- Negative LVDS differential clock input
18 Odd_CLKIN+ Positive LVDS differential clock input
19 GND Ground [LCD Module Rear View]
20 NC No Connection
21 NC No Connection
22 GND Ground
23 NC No Connection
24 NC No Connection
25 GND Ground
26 NC No Connection
27 NC No Connection
28 GND Ground
29 NC No Connection
30 NC No Connection
31 VLED_GND LED Ground
32 VLED_GND LED Ground
33 VLED_GND LED Ground
34 NC No Connection
35 BLIM PWM for Luminance control
36 BL_On Backlight On/Off Control
37 NC No Connection
38 VLED LED Power Supply (7V-20V)
39 VLED LED Power Supply (7V-20V)
40 VLED LED Power Supply (7V-20V)
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LP156WH2
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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LP156WH2
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
Freq.
Fmax
Fcenter
Fmin
Time
< Spread Spectrum >
3-3-3. Data Format
1) LVDS 1 Port
RCLK+
RA+/- R3 R2 R1 R0 G0 R5 R4 R3 R2 R1 R0 G0 R5 R4
RB+/- G4 G3 G2 G1 B1 B0 G5 G4 G3 G2 G1 B1 B0 G5
RC+/- B5 B4 B3 B2 DE VSYNC HSYNC B5 B4 B3 B2 DE VSYNC HSYNC
RD+/- G7 G6 R7 R6 X B7 B6 G7 G6 R7 R6 X B7 B6
Previous (N-1)th Cycle Current (Nth ) Cycle Next (N+1)th Cycle
< LVDS Data Format >
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LP156WH2
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 6. TIMING TABLE
ITEM Symbol Min Typ Max Unit Note
DCLK Frequency fCLK 66.5 69.3 72.8 MHz
Period tHP 1430 1486 1526
Hsync Width tWH 32 32 32 tCLK
Width-Active tWHA 1366 1366 1366
Period tVP 775 782 791
Vsync
Width tWV 2 4 5 tHP
Width-Active tWVA 768 768 768
Horizontal back porch tHBP 16 56 88
tCLK
Data Horizontal front porch tHFP 16 32 48
Enable Vertical back porch tVBP 4 8 14
tHP
Vertical front porch tVFP 1 2 3
Condition : VCC =3.3V
3-5. Signal Timing Waveforms
High: 0.7VCC
Data Enable, Hsync, Vsync
Low: 0.3VCC
tCLK
DCLK 0.5 Vcc
tHP
Hsync t
WH
tHBP tWHA tHFP
Data Enable
tVP
tWV
Vsync tVFP
tVBP tWVA
Data Enable
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LP156WH2
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 7. 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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LP156WH2
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 on/off control Signal
0V (Off)
LED_EN
T9 T10
Dimming control signal Valid Data
Of LED BL 0V (Low)
PWM
T8 T11
90% 90%
LED input Voltage
VLED 0V 10% T12
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 10 - - ms
T2 0 - 50 ms T9 0 - - ms
T3 0 - 50 ms T10 0 - - ms
T4 400 - - ms T11 10 - - ms
T5 200 - - ms T12 0.5 - - ms
T6 200 - - ms
T7 3 - 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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LP156WH2
Liquid Crystal Display
Product Specification
4. Optical Specification
Optical characteristics are determined after the unit has been `ON' and stable for approximately 30 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 Pritchard 880 or
Optical Stage(x,y)
equivalent
50cm
Table 9. OPTICAL CHARACTERISTICS
Ta=25qC, Vcc=3.3V, fV=60Hz, fCLK= 69.3MHz, VLED = 12V, PWM Duty = 100%
Values
Parameter Symbol Units Notes
Min Typ Max
Contrast Ratio CR 300 - - 1
Surface Luminance, white LWH 170 200 - cd/m2 2
Luminance Variation G WHITE - 1.4 1.6 3
Response Time TrR+ TrD - 16 - ms 4
Color Coordinates
RED RX 0.591 0.616 0.641
RY 0.346 0.371 0.396
GREEN GX 0.330 0.355 0.380
GY 0.581 0.606 0.631
BLUE BX 0.127 0.152 0.177
BY 0.075 0.100 0.125
WHITE WX 0.283 0.313 0.343
WY 0.299 0.329 0.359
Viewing Angle 5
x axis, right()=0q) 4r 40 - - degree
x axis, left ()=180q) 4l 40 - - degree
y axis, up ()=90q) 4u 10 - - degree
y axis, down ()=270q) 4d 30 - - degree
Gray Scale 6
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LP156WH2
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
L7 1.45
L15 5.36
L23 12.21
L31 21.01
L39 34.82
L47 52.49
L55 74.17
L63 100
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LP156WH2
Liquid Crystal Display
Product Specification
FIG. 2 Luminance
H
10mm A
6 7 8 10mm
2 3
B H,V : ACTIVE AREA
V A : H/4 mm
9 1 10
B : V/4 mm
POINTS: 13 POINTS
4 5 13
11 12
FIG. 3 Response Time Active Area
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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LP156WH2
Liquid Crystal Display
Product Specification
5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model LP156WH2. In addition the figures
in the next page are detailed mechanical drawing of the LCD.
Horizontal 359.3 r 0.5mm
Outline Dimension Vertical 209.5 r 0.5mm
Thickness 5.5mm (max)
Horizontal 349.8 r 0.5mm
Bezel Area
Vertical 197.1 r 0.5mm
Horizontal 344.23 mm
Active Display Area
Vertical 193.54 mm
Weight 450g (Max.)
Surface Treatment Anti-Glare treatment of the front polarizer
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LP156WH2
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP156WH2
Liquid Crystal Display
Product Specification
Note) Unit:[mm], General tolerance: r 0.5mm
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LP156WH2
Liquid Crystal Display
Product Specification
[ DETAIL DESCRIPTION OF SIDE MOUNTING SCREW ]
Notes : 1. Screw plated through the method of non-electrolytic nickel plating is preferred
to reduce possibility that results in vertical and/or horizontal line defect due to
the conductive particles from screw surface.
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LP156WH2
Liquid Crystal Display
Product Specification
LPL Proposal for system cover design.(Appendix)
Gap check for securing the enough gap between LCM
1
and System cover.
Max Thickness
Sponge
LCM Reflector Side
System Cover
A Boundary Line
1.Rear side of LCM is sensitive against external stress,and previous check
about interference is highly needed.
Define 2.In case there is something from system cover comes into the boundary
above,mechanical interference may cause the FOS defects.
(Eg: Ripple, White spot..)
2 Check if antenna cable is sufficiently apart from T-CON of LCD Module.
Define
NO GOOD GOOD
1.If system antenna is overlapped with T-CON,it might be cause the noise.
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LP156WH2
Liquid Crystal Display
Product Specification
LPL Proposal for system cover design.
Gap check for securing the enough gap between LCM
3
and System hinge.
COF
(D-IC)
Hinge
Side Mount Screw Hole (4ea)
GAP:Min2.0mm
("I" TYPE) ("L" TYPE)
1.At least 2.0mm of gap needs to be secured to prevent the shock
Define related defects.
2."L" type of hinge is recommended than "I" type under shock test.
4 Checking the path of the System wire.
#2 #1
#3
Bad Ok Good
1.COF area needs to be handled with care.
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