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LP156WH4
Liquid Crystal Display
Product Specification




SPECIFICATION
FOR
APPROVAL


( ) Preliminary Specification
( ) Final Specification


Title 15.6" HD TFT LCD

Customer ASUS SUPPLIER LG Display Co., Ltd.
*MODEL LP156WH4
MODEL
Suffix TLA1
*When you obtain standard approval,
please use the above model name without suffix



APPROVED BY SIGNATURE APPROVED BY SIGNATURE

G. J. Han / S.Manager
/
REVIEWED BY
B. T. Jang / Manager
/
C. H. Lee / Manager

/ PREPARED BY

K. M. Lee / Engineer
G. H. 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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LP156WH4
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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LP156WH4
Liquid Crystal Display
Product Specification



RECORD OF REVISIONS

EDID
Revision No Revision Date Page Description
ver
0.0 July. 27, 2010 - First Draft (Preliminary Specification) 0.0
0.1 Oct. 29, 2010 29-31 Update EDID 0.1




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LP156WH4
Liquid Crystal Display
Product Specification

1. General Description
The LP156WH4 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 15.6 inches diagonally measured active display area with HD
resolution (1366 horizontal by 768 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 LP156WH4 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WH4 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 LP156WH4 characteristics provide an excellent flat display for office automation products such
as Notebook PC.

1 1366
EEPROM Block
EEPROM Block
for EDID
for EDID

TFT-LCD Panel
User connector




LVDS Timing Control
Timing Control (FHD, GIP, TN)
1port Block
Block
EP
I
768
DVCC CLKs

Power AVCC, AVDD
40 VCC Power
VGH, VGL, GMA
Source Driver
Block
Pin




Block (Bottom Bent)
GIP CLKs, DSC

VLED LED Driver
LED Driver VOUT_LED
LED_EN FB1~4
LED Backlight Ass'y
PWM
Block
Block



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 220 cd/m2(Typ.5 point @ PWM Duty = 100%)
Power Consumption Total 4.2 W(Typ.) Logic : 0.9W ([email protected] Mosaic), B/L : 3.3W ([email protected] VLED 12V )
Weight 450g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Glare treatment (3H) of the front Polarizer
RoHS Comply Yes
BFR / PVC / As Free Yes for all

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LP156WH4
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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LP156WH4
Liquid Crystal Display
Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics
The LP156WH4 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 Mosaic ICC - 275 320 mA 2

Power Consumption PCC - 0.9 1.1 W 2

Power Supply Inrush Current ICC_P - - 1500 mA 3

LVDS Impedance ZLVDS 90 100 110 4

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage VLED 7.0 12.0 21.0 V 5

LED Power Input Current ILED - 275 290 mA 6

LED Power Consumption PLED - 3.3 3.5 W 6

LED Power Inrush Current ILED_P - - 1500 mA 7

PWM Duty Ratio 5 - 100 % 8

PWM Jitter - 0 - 0.2 % 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 - 0.3 V

LED_EN Impedance ZPWM 20 40 60 k

LED_EN High Voltage VLED_EN_H 3.0 - 5.3 V

LED_EN Low Voltage VLED_EN_L 0 - 0.3 V

Life Time 12,000 - - Hrs 11




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LP156WH4
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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LP156WH4
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, SW0617(LCD Controller)
4 V EEDID DDC Power (3.3V) Including LVDS Receiver.
5 Bist LCD Panel Self Test Enable 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
UJU IS050-L40B-C10
9 ORX0+ Positive LVDS differential data input
LSMtron GT05Q-40S-H10 or equivalent
10 GND LCM Ground
11 ORX1- Negative LVDS differential data input
[Mating Connector]
12 ORX1+ Positive LVDS differential data input 20453-040T-0# series or equivalent
13 GND LCM Ground
14 ORX2- Negative LVDS differential data input
15 ORX2+ Positive LVDS differential data input [Connector pin arrangement]
16 GND LCM Ground
17 ORXC- Negative LVDS differential clock input
18 ORXC+ Positive LVDS differential clock input
19 GND LCM Ground
[LCD Module Rear View]
20 NC No Connection
21 NC No Connection
19 GND LCM Ground
23 NC No Connection
24 NC No Connection
19 GND LCM Ground
26 NC No Connection
27 NC No Connection
19 GND LCM Ground
29 NC No Connection
30 NC No Connection
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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LP156WH4
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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LP156WH4
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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LP156WH4
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
ITEM Symbol Min Typ Max Unit Note

DCLK Frequency fCLK - 70.0 - MHz

Period tHP 1462 1492 1536

Hsync Width tWH 32 48 62 tCLK

Width-Active tWHA 1366 1366 1366

Period tVP 776 782 792
Vsync
Width tWV 2 5 8 tHP

Width-Active tWVA 768 768 768

Horizontal back porch tHBP 34 42 60
tCLK
Data Horizontal front porch tHFP 32 36 40
Enable Vertical back porch tVBP 4 6 12
tHP
Vertical front porch tVFP 2 3 4

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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LP156WH4
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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LP156WH4
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 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 T13 0 - 5000 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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LP156WH4
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

Table 7. OPTICAL CHARACTERISTICS Ta=25qC, Vcc=3.3V, fV=60Hz, fCLK= 70.0MHz
Values
Parameter Symbol Units Notes
Min Typ Max
Contrast Ratio CR 400 - - 1
2
Surface Luminance, white LWH 185 220 - cd/m 2
Luminance Variation G WHITE - 1.4 1.6 3
Response Time TrR+ TrD - 16 - ms 4
Color Coordinates
RED RX TBD TBD TBD
RY TBD TBD TBD
GREEN GX TBD TBD TBD
GY TBD TBD TBD
BLUE BX TBD TBD TBD
BY TBD TBD TBD
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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LP156WH4
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 TBD
L7 TBD
L15 TBD
L23 TBD
L31 TBD
L39 TBD
L47 TBD
L55 TBD
L63 TBD




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LP156WH4
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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LP156WH4
Liquid Crystal Display
Product Specification


5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model LP156WH4. 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 350.0 r 0.5mm
Bezel Area
Vertical 197.1 r 0.5mm

Horizontal 344.232 mm
Active Display Area
Vertical 193.536 mm

Weight 450g (Max.)

Surface Treatment Glare treatment(3H) of the front polarizer




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LP156WH4
Liquid Crystal Display
Product Specification

Note) Unit:[mm], General tolerance: r 0.5mm




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LP156WH4
Liquid Crystal Display
Product Specification

Note) Unit:[mm], General tolerance: r 0.5mm




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LP156WH4
Liquid Crystal Display
Product Specification

[ DETAIL DESCRIPTION OF SIDE MOUNTING SCREW ]




* Mounting Screw Length (A)
= 2.0(Min) / 2.5(Max)
* Mounting Screw Hole Depth (B)
= 2.5(Min)
* Mounting hole location : 3.1(Typ)
* Torque : 2.0 kgf.cm(Max)
(Measurement gauge : torque meter)

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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LP156WH4
Liquid Crystal Display
Product Specification


LGD Proposal for system cover design.(Appendix)

1
Gap check for securing the enough gap between LCM
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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LP156WH4
Liquid Crystal Display
Product Specification

LGD 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.
2.GOOD