SAMSUNG LTM220MT09 Specification

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MODEL : LTM220MT09

Issued Date : 24 / Apr. / 2012

SAMSUNG TFT-LCD PRODUCT INFORMATION

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Note : This is Product Information is subject to change after 3 months of issuing date

Application Engineering Group

Samsung Display Co., Ltd.

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5.7 I

t

9.1 Handling Precautions

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Contents

Revision History -------------------------------------------------------------------------- (3)

1. General Description ---------------------------------------------------------------------- (4)

2. Absolute Maximum Ratings ------------------------------------------------------------- (5)

3. Optical Characteristics -------------------------------------------------------------------- (7)

4. Block diagram ---------------------------------------------------------------------------- (11)

5. Electrical Characteristics ------------------------------------------------------------------ (12)

5.1 TFT LCD Module

5.2 Back Light Unit

5.3 LVDS Input Characteristics

5.4 Timing Parameters

5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color

5.6 Power ON/OFF Sequence

nput Terminal Pin Assignmen

6. Outline Dimension ------------------------------------------------------------------------ (25)

7. Packing ------------------------------------------------------------------------------------ (27)

9. General Precautions ----------------------------------------------------------------------- (29)

9.2 Storage Precautions

9.3 Operation Precautions

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V

Dat

P

D

Revision History

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ersion

P0.0 24,Apr.,2012 All Product information

e

age

escription

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Features

DE (Data Enable) only mode

T

CO 5.1 compliance

Luminance of White

250(Typ.)

cd

/

༇

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1. General Description

Overview

LTM220MT09 is a color active matrix liquid crystal display (LCD) that uses amorphous
silicon TFT (Thin Film Transistor) as switching components. This model is composed of a
TFT LCD panel, a driver circuit and a back light unit. The resolution of a 22.0” is 1680 x
1050(WSXGA+) and this model can display up to 16.7 millions colors.

Application

- Workstation & Desktop monitors

- Display terminals for AV Products

- Monitors for Industrial machine

LVDS (Low Voltage Differential Signaling) interface (2pixel/clock)

RoHS, Halogen Free

White LED Edge slim Backlight (1-side)

- Except for 2.2 response time; this product does not have over driving function.
It is recommended to support in system level

General Information

Items Specification Unit

Pixel Pitch 0.282(H) x 0.282(W) mm

Active Display Area 473.76(H) x 296.1(V) mm

Surface Treatment AG type, Haze 25% , Hard coating (3H) -

Display Colors 16.7M (Hi-FRC) colors

Number of Pixels 1,680 x 1,050 pixel

Pixel Arrangement RGB vertical stripe -

Display Mode Normally White -

Power Consumption Total 19.19W(Typ.) ( Panel 8.5W / BLU 10.69W) W

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yp

(Operation)

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Mechanical Information

Item Min. Typ. Max. Unit Note

Horizontal (H) 493.2 493.7 494.2 mm

Module

size

Note (1) Mechanical tolerance is ± 0.5mm unless there is a special comment.

Vertical (V) 319.6 320.1 320.6 mm

Depth (D) - - 10.7 mm -

Weight - - 1,900 g LCD module only

-

2. Absolute Maximum Ratings

If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable
damage to the device.

Item Symbol Min. Max. Unit Note

Power Supply Voltage V

Operating Temperature T

Storage temperature T

Glass surface temperature

Note (1) Ta= 25 ± 2 °C

T

DD

OPR

STG

SUF

GND-0.5 6.5 V (1)

050

-20 60

050

୅

୅

୅

(2)

(3)

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°

C)

operating temperature should be keeping the surface of active area not any

(50.50.4)

(

20.10)

Note (2) Temperature and relative humidity range are shown in the figure below.

a. 90 % RH Max. (Ta  39
b. Maximum wet-bulb temperature at 39 °C or less. (Ta  39 °C)
c. No condensation

(3) The maximum operating temperature of LCD module is defined with surface

temperature of active area. Under any condition, the maximum ambient

higher than 65 °C

Relative Humidity ( % RH)

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-40

100

90

80

60

40

20

Operating Range

(39.90)

(60.27.7)

Storage Range

­10

-20

0

20

40 60

80

Temperature (°C )

Fig. Temperature and Relative humidity range

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p

q

C/R

600

1000

-

(Ce te o sc ee )

S

3

y

Viewing

y

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3. Optical Characteristics

The optical characteristics should be measured in a dark room or equivalent.

Measuring equipment : SR-3, RD-80S (TOPCON), EZ-Contrast (Eldim)

Item Symbol Condition Min. Typ. Max. Unit Note

Contrast Ratio

(Center of screen)

Response

Time

On/Off Tr + Tf - 5 10 msec

Luminance of White

n

r

f

r

n

Brightness Uniformity

(9 Points)

Red

Color

Green

Chromaticity

(CIE 1931)

Blue

(Ta = 25 ± 2°C, VDD=5V, fv= 60Hz, f

Y

L

B

uni

200 250 - cd/m

--25%

Rx 0.641

Ry 0.335

Gx 0.300

Gy 0.605

Bx 0.147

B

Normal



=0

L,R



=0

U,D

- 0.030 +0.030

0.058

=59.5MHz, If =360mA)

DCLK

2

(3)

SR-3

(5)

RD-80S

(6)

R-

(4)

SR-3

Color

Chromaticity

(CIE 1976)

White

Red

Green

Blue

White

Wx 0.313

Angle

Wy 0.329

Ru' - 0.447 -

Rv' - 0.525 -

Gu' - 0.124 -

Gv' - 0.564 -

Bu' - 0.173 -

Bv' - 0.153 -

Wu' - 0.198 -

Wv' - 0.469 -

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L

detector

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Item Symbol Condition Min. Typ. Max. Unit Note

Color Gamut - - 72 - %

Color Temperature - - 6500 - K

SAMSUNG DISPLAY



Hor.



Viewing

Angle

R



U

Ver.



D

Note (1) Test Equipment Setup

The measurement should be executed in a stable, windless and dark room
between 30min after lighting the back light at the given temperature for
stabilization of the back light. This should be measured in the center of screen.

LED Forward current : If = 360mA Environment condition : Ta = 25 ± 2 °C

Photo

70 80 -

70 80 -

CR10 Degrees

70 80 -

70 80 -

(8)

EZ-

Contrast

Field

2°

SR-3 : 50༃

RD-80S : 50༃

TFT - LCD

Module

LCD Panel

The center of the

screen

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6

5

6

5

(4) Definiti

(2) Definition of test point

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168 840 1512

Active Area

: Test Point

3 2 1

(3) Definition of Contrast Ratio (CR)

: Ratio of gray max (G

) & gray min (G

max

CR =

G
G

: Luminance with all pixels white

max

: Luminance with all pixels black

min

G

G

8 79

max

min

105

4

525

945

) at the center pointྜྷ of the panel

min

on of 9 points brightness uniformity

B

= 100 x

uni

B

: Maximum brightness

max

B

: Minimum brightness

min

B

max

B

max

-B

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10 %

g

)

gg g

()



U

(5) Definition of Response time : Sum of Tr, Tf

Optical Instruments

Response

100 %

90 %

T

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r

T

f

(6) Definition of Luminance of White : Luminance of white at center point (5)

(7) Definition of Color Chromaticity (CIE 1931, CIE1976)

Color coordinate of Red, Green, Blue & White at center point (5)

(8) Definition of Viewing Angle

: Viewin

angle range(CR  10

Normal


= D= L= R = 0°

U

Y

U = 90°0



R

= 90°0



L

D = 90°0

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RGB Dat

TFT

LCD P

l

4. Block Diagram

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a

LVDS
Pair #1

LVDS
Pair #2

V

LCD

V

LED

I

LED

CN1

CN2

LVDS (Rx)

Timing

Controller

Power Circuit

Block

Control signal

Backlight Unit

Source Driver ICs

S1

-

ane

S1680

(1680 x RGB x 1050 pixels)

( WLED )

Fig. Function Block Diagram

Note (1) The connector for display data & timing signal should be connected.

.

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Power

IDD(3),(4)

(b) White

800

mA

For stable operation of an LCD Module power, please follow them

80%

4.5V  V

 5.5V

5. Electrical Characteristics

5.1 TFT LCD Module

The connector for display data & timing signal should be connected.

Item Symbol Min. Typ. Max. Unit Note

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Ta=25  2C

Voltage of Power Supply V

V

DD

CC

4.5 5.0 5.5 V (1)

4.0 - V

Power Dip Condition

0-20msec

- 1,500 - mA

(a) Black

T

d

Current of

-

Supply

(c) Dot - 1,700 2,100 mA

Power Consumption P

Rush Current I

LCD

RUSH

- 8.5 - Watt (4),(5)

--5.0A(6)

Note (1) The ripple voltage should be controlled under 10% of V

(2) Definition of V

Power Dip

DD

- The above conditions are for the glitch of the input voltage.

-

DD

-

DD

V

(2)

.

V

DD

T

d

90%

V

CC

GND

DD

If VDD(Typ.) x 80%  VCC VDD(Typ.) x 90%,

then 0<Td 20msec

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(5) The power consumption is specified whereas Dot pattern is displayed

V

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(3) fV=60Hz, f

= 59.5MHz, VDD= 5.0V, DC Current.

DCLK

(4) Power dissipation check pattern (LCD Module only)

a) White Pattern b) Black Pattern

c) Dot Pattern

at f

=60Hz, f

V

= 59.5MHz, VDD= 5.0V

DCLK

(6) Measurement Condition

100%

90%

10%
GND

Rush Current I

can be measured when T

RUSH

T

RUSH

=470༕

. is 470༕.

RUSH

DD

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LED

100% dut

LED dri

(4) Life time(Hr) is defined

LED

5.2 Backlight Unit

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The characteristics of LED bar

Ta=25  2C

Item Symbol Min. Typ. Max. Unit Note

LED Forward Current I

LED Array Voltage V

Power Consumption P

F

P

BLU

- 360 - mA (1),(2)

- 29.7 31.5 V (2)

- 10.69 - Watt (3)

Operating Life Time Hr 30,000 - - Hour (4)

Note (1) The LED Forward current for single LED channel is Typ.120mA

(2) The above specification is not for the converter output, but for the LED bar.

- The LED bar consists of 27 LED packages ; 3 parallel X 9 serial

-

current is defined at

y ratio of

ver

(3) The power consumption is specified at typical current 360mA with 100% duty ratio

- It does not include power loss of external LED driver circuit block

- Typical power consumption P

as the time when brightness of a

= IF(Typ.) x VP(Typ.)

BLU

package itself
becomes 50% or less than its original value at the condition of Ta=25  2C
and I

=360mA.

F

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Differential input

All i

10MH

5.3 LVDS Characteristics

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5.3.1. LVDS Input Characteristics

Item Symbol Min. Typ. Max. Unit Note

Differential Input High +100 mV

Voltage for LVDS

receiver threshold

LVDS skew t

Low -100 mV

SKEW

-300 300 ps

lV

l 100 600 mV

id

voltage

Input voltage

V

in

0 2.4 V

range(single ended)

Common mode

V

cm

0.4 1.2 2.9 V

voltage

Ta= 25  2C

(1)

(2)

(3)

(4)

(4)

Note (1) Differential receiver voltage definitions and propagation delay and transition time

test circuit

Input

V

= (VIA+ V

IC

a.
b. C

R

nput pulses have frequency =

includes all probe and fixture capacitance

L

IN+

V

V

IA

R

IN-

V

IB

) / 2

IB

= VIA-V

D

z, tRor tF=1ns

IB

C

R

out

L

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Differential

V

= 0V

V

0V

LVDS

Clk

V

9V

|VID|

600mV

(2) LVDS Receiver DC parameters are measured under static and steady conditions

which may not be reflective of its performance in the end application.

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T

DIFF

LVDS Data
RX +/-

t

SKEW

where t

SKEW

: skew between LVDS clock & LVDS data,

T : 1 period time of LVDS clock

cf. (-/+) of 300psec means LVDS data goes before or after LVDS clock.

(3) Definition of VIDand V

V

DD

using single-end signals

CM

DIFF

=

Differential

VCM=2.9V

VCM=1.2V

VCM=0.4

V

SS

|VID| = 100mV

|VID| = 100mV

VCMrange with Min |VID|

=2.

CM

VCM=0.4

=

|VID| = 600mV

VCMrange with Max |VID|

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5.3.2 LVDS Data format

Timing Diagrams of LVDS For Transmitting

- LVDS Receiver : Integrated T-CON

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T

RX CLKO /E

RX INO /E3

R

INO /E2

X

RX INO /E1

R

INO /E0

X

V

Previous

G[6] R[7] R[6]

B[4] B[3] B[2]

G[3] G[2] G[1] B[0]

R[2] R[1] R[0] R[5]

DIFF

cycle

= 0V

T/7 T/7



B[7] B[6] G[7] G[6] R[7] R[6]

VSYNC

T/7

HSYNC

G[5]

R[4]

1 cycle

T/7

B[5] B[4] B[3] B[2]DE

G[4] G[3] G[2] G[1]B[1]

R[3] R[2] R[1] R[0]G[0]

T/7

V

T/7 T/7

DIFF

= 0V



DE

G[0]

Next

cycle

B[7]

VSYNC

B[0]B[1]

R[5]

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F

H

FH57.2

64.8

83.2

kH

Display Ter m

y

Hori

2pixel

5.4 Interface Timing Specification

5.4.1 Timing Parameters

SIGNAL ITEM SYMBOL Min. Typ. Max. Unit Note

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Clock

sync

requency

Vsync F

Active

Display

Vertical

Period

Vertical

Tot al

Active

Display

Horizontal

Displa

Ter m

Period

zontal

Tot al

Note (1) DE only mode

- While operation, DE signal should be have the same cycle.

1/T

T

VD

T

T

HD

T

C

52.6 59.6 75.5 MHz -

z-

V

50 60 77 Hz -

1050 1050 1050 Lines -

V

H

1059 1080 1100 Lines -

840 840 840 Clocks

913 920 1004 clocks

2pixel
/clock

/clock

(2) Best operation clock frequency is 59.6MHz(60Hz)

(3) Clock frequency = Frame frequency x T

(Typ.) x TH(Typ.)

V

(4) Max, Min variation range is at main clock typical value (59.6MHz).

(5) Main frequency Max is 75.5MHz without spread spectrum.

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gg g y

HD

TCHT

CL

5.4.2 Timing diagrams of interface signal ( DE only mode )

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T

V

SAMSUNG DISPLAY

DE

DE

D

CLK

DATA

SIGNALS

T

VD

T

H

T

VB

T

T

C

D

CLK

DISPLAY

DATA

DE

T

C

0.5 V

CC

T

DS

T

ES

T

DH

0.5 V

CC

0.5 V

CC

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BLUE000000000000000011111111

LIGHT

:::::::::::::::::

:

DARK

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5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color

DATA SIGNAL

COLOR

DISPLAY

(8bit)

R0 R1 R2 R3 R4 R5 R6 R7 G0 G1 G2 G3 G4 G5 G6 G7 B0 B1 B2 B3 B4 B5 B6 B7

BLACK 000000000000000000000000 -

GREEN 000000001111111100000000 -

RED GREEN BLUE

GRAY

SCALE

LEVEL

-

BASIC

COLOR

GRAY

SCALE

OF

RED

GRAY

SCALE

OF

GREEN 

CYAN 000000001111111111111111 -

RED 111111110000000000000000 -

MAGENTA111111110000000011111111 -

YELLOW 111111111111111100000000 -

WHITE 111111111111111111111111 -

BLACK 000000000000000000000000 R0

DARK

RED 111111110000000000000000 R255

BLACK 000000000000000000000000 G0

DARK

LIGHT

100000000000000000000000 R1







010000000000000000000000 R2

.

:::::: :::::: ::::::

101111110000000000000000 R253

011111110000000000000000 R254

000000001000000000000000 G1

000000000100000000000000 G2

000000001011111100000000 G253

000000000111111100000000 G254

.

.

.

.

.

GREEN 000000001111111100000000 G255

BLACK 000000000000000000000000 B0

000000000000000010000000 B1

GRAY

SCALE

OF

BLUE





LIGHT

BLUE 000000000000000011111111 B255

000000000000000001000000 B2

:::::: :::::: ::::::

000000000000000010111111 B253

000000000000000001111111 B254

Note (1) Definition of Gray

- Rn : Red Gray, Gn : Green Gray, Bn : Blue Gray (n = Gray level)

Input Signal : 0 = Low level voltage, 1 = High level voltage

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P

P

Off

5

6

(4) T4 should b

5.6 Power ON/OFF Sequence

To prevent a latch-up or DC operation of the LCD Module, the power on/off

sequence should be as the diagram below.

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Power Supply (VDD)

0 V

0.1 V

Signals

DD

0.9 V

DD

T

1

T

2

VALID

T

ower On

50% 50%

T

T

SYMBOL Min. Typ. Max. Unit Description

T

1

0 - 10 ms VDDrising time from 10% to 90%

3

ower

0.9 V

DD

0.1 V

DD

T

4

T

2

T

3

T

4

T

5

T

6

0 - 50 ms The time from VDDto valid data at power ON

0 - 50 ms The time from valid data off to VDDoff at power Off

1-- sVDDoff time for Windows restart

500 - - ms The time from valid data to B/L enable at power ON

100 - - ms The time from valid data off to B/L disable at power Off

Note (1) The supply voltage of the external system for the Module input should be

the same as the definition of VDD.

(2) Apply the BLU power within the LCD operation range. When the back light

turns on before the LCD operation or the LCD turns off before the back light
turns off, the display may momentarily show abnormal screen.

(3) In case of V

= off level,

DD

please keep the level of input signals low or keep a high impedance.

e measured after the Module has been fully discharged between

power off and on period.

(5) Interface signal should not be kept at high impedance when the power is on.

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p

p

8

RXOC

N

(ODD d

)

p

p

19

RXE2P

Positi

LVDS diff

30

VDD

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5.7 Input Terminal Pin Assignment

5.7.1 Input signal & Power Pin Assignment

Connector : : P-TWO 196308-30041 or equivalent

Pin No. Symbol Function

1 RXO0N Negative LVDS differential data output

SAMSUNG DISPLAY

2 RXO0P Positive LVDS differential data out
3 RXO1N Negative LVDS differential data output
4 RXO1P Positive LVDS differential data output
5 RXO2N Negative LVDS differential data output
6 RXO2P Positive LVDS differential data output
7 GND Ground

-

9 RXOC+ Positive Sampling Clock (ODD data)
10 RXO3N Negative LVDS differential data output
11 RXO3P Positive LVDS differential data output
12 RXE0N Negative LVDS differential data output
13 RXE0P Positive LVDS differential data out
14 GND Ground
15 RXE1N Negative LVDS differential data output
16 RXE1P Positive LVDS differential data output
17 GND Ground
18 RXE2N Negative LVDS differential data output

egative Sampling Clock

ut

ata

ut

ve
20 RXEC- Negative Sampling Clock (EVEN data)
21 RXEC+ Positive Sampling Clock (EVEN data)
22 RXE3N Negative LVDS differential data output
23 RXE3P Positive LVDS differential data output
24 GND Ground
25 NC * CE (For LCD internal use only. Do not connect)
26 NC * CTL (For LCD internal use only. Do not connect)
27 NC No Connection
28 VDD

Power Supply : +5V29 VDD

erential data output

Note (1) If the system already uses the 25, 26pins, it should keep under GND level

The voltage applied to those pins should not exceed -200mV.

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Note (3)

All GND pins should be connected together and also be connected

Note (2) Pin number starts from Left side

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PCB

Ɂ

Pin No. 1 Pin No. 30

Ɂ

#30#1

( Connector : P-TWO 196308-30041 or equivalent)

#1 #30

Fig. Connector diagram

to the LCD’s metal chassis.

(4) All power input pins should be connected together.

(5) All NC pins should be separated from other signal or power.

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2

RTN 1

Ch

LED

()

Ɂ

5.7.2 LED Connector Pin assignment

Connector : Molex 104086-0410 pr equivalent

Pin No. Symbol Function

1 Vin LED power input

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annel 1

3 RTN 2 Channel 2 LED return

4 RTN 3 Channel 3 LED return

Note (1) Pin number starts from Left side

Rear view of panel

#1

Connector

return

#4

#1

Fig. Connector diagram

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6. Outline Dimension

[ Refer to the next page ]

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Pallet box

192

Material

(SW,DW)

PACKING

-

Case

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7. Packing

7.1 Carton

Item Packing form Specification

Weight - - Total Weight ( Including Pallet ) : Approx. 338Kg

Packing case 12 panels in a case

16 cases in a box

panels in a box

Pallet -

LTM220MT09 Module

- Packing Case Size : W273 x L594 x H376

- Material : Paper (SW,DW)

- Packing Pallet Box Size : W1208 x L1212 x H762

-

: Paper

- Pallet Size : W1270 x L1150 x H125

- Material : Plastic

PACKING-PALLET BOX

( 12 EA )

PALLET PLASTIC

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(3) Lot number : X

XXX

XXX

XX

X

Year

LTM220MT09

Box serial number

XXXXXXXXXX

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7.2 Marking

A nameplate bearing followed by is affixed to a shipped product at the specified

location on each product.

(1) Parts number : LTM220MT09
(2) Revision: Three letters

Cell Position No. (In the Glass)
Glass No. (In the one Lot)
Lot No. (Glass)
Month

(4) Nameplate Indication

[Week Code]

[Lot Number] [Revision]

[ PPID ]

80mm

(4) Packing box attach

Product code
Line

Week code : 11 09

week
year

40mm

40mm

LTM220MT09

XXXPCS

80mm

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Part number

Revision code

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8. General Precautions

8.1 Handling Precautions

A. When assembling LCD module into its system, using all the mounting holes is

strongly suggested.

B. Keep LCD module from any external shock or force which can cause physical damage

to LCD module. It may cause improper operation or damage to LCD module.

C. Polarizer films are very fragile. It could be damaged easily. Do not press or scratch

the surface harder than a HB pencil lead.

D. Wipe off water droplets or oil immediately. Water drops or oils can cause permanent

stain or discoloration.

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E. To clean LCD module, please use IPA (Isopropyl Alcohol) or Hexane.

F. Do not use ketone type material (ex. Acetone), ethyl alcohol, toluene, ethyl acid or

methyl chloride. Using these could cause permanent polarizer damage to the LCD
module.

G. If the liquid crystal leaks from LCD module, keep it away from human eyes or mouth.

In case of contact with human body or clothes, it should be washed with soap

thoroughly.

H. Protect LCD module from static discharge.

I. To keep the LCD module clean, make sure to wear fabric gloves and finger coats when

you are inspecting and/or assembling the unit.

J. Do not disassemble LCD module.

K. Protection film on LCD module display area should be slowly peeled off just before

assembly to prevent static discharge.

L. Pins of the Interface connector should not be touched directly with bare hands.

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(%rH)3575

Products

should not be placed on the floor, but on the Pallet away

Avoid

other hazardous environment while storing goods

8.2 Storage Precautions

It is highly recommended to comply with the criteria in the table below

Item Unit Min. Max.

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Storage

Temperature

Storage

Humidity

Storage life 12 months

- The storage room should provide good ventilation and temperature
control.

­from a wall.

Storage

Condition

- Prevent products from direct sunlight, moisture nor water;
Be cautious of a build up of condensation.

-

- If products delivered or kept in conditions of over the storage period

of 3 months, the recommended temperature or humidity range,
it is recommended to leave them at a temperature of 20୅ and a
humidity of 50% for 24 hours.

(୅)

540

.

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E

LCD module contains electrical circuits that operate in high frequencies. To minimize

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8.3 Operating Precautions

A. If the module is used to other applications besides the recommendation on General

Description, please contact SDC for application engineering device in advance

B. Do not connect or disconnect the LCD module when it is set to the “Power On”

condition.

C. Input power should always follow ‘5.6 Power on/off sequence’

D. Polarizer films are very fragile. It could be damaged easily. Do not press or scratch the

Polarizer films

.

electromagnetic interference, be sure to sufficiently ground and shield the LCD
module and system.

F. If LCD module containing system is out of SDC’s operating condition, SDC can not

guarantee LCD module operating properly.

G. If the product will be used in extreme conditions such as high temperature, humidity,

display patterns, operation time, etc., it is strongly recommended to contact SDC for
application engineering device. Otherwise, the reliability and function of the module
may not be guaranteed. Extreme conditions are commonly found at airports, transit
stations, banks, stocks, markets, and controlling systems.

H. Ultra-violet ray filter is necessary for outdoor operation.

I. If the module keeps displaying the same pattern for a long period of time, the image

maybe burned in to the screen. To avoid image retention, it is recommended to use a
screen saver.

J. This module has its PCB’s circuitry on the rear side and should be handled carefully in

order to avoid stress.

K. Please contact SDC beforehand, if you plan to display the same pattern for a long

period of time.

L. Any foreign materials brought into an LCD module by external forced-airflow are not

guaranteed by SDC.

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