Datasheet LP-141X11-A2 Service manual (LG)

( ○○○○ ) Preliminary Specification

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( ) Final Specification

Title 14.1” XGA TFT LCD

LP141X11

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER MODEL

www.jxlcd.com

SIGNATURE DATE

/

SUPPLIER

*MODEL

SUFFIX

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY DATE

S. H. Kang G.Manager

REVIEWED BY

B. H. Koo Manager/ J. H. Lee Manager

PREPARED BY

J. W. Park Engineer/

S. J. Lee Engineer

/

LG.Philips LCD CO., Ltd. LP141X11

A2

Please return 1 copy for your confirmation with your signature and comments.

Ver. 0.0 Oct. 17, 2001

Product Engineering Dept.

LG. Philips LCD Co., Ltd

1 / 26

LP141X11

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Liquid Crystal Display

Product Specification

Contents

NO. ITEM Page

-

COVER CONTENTS RECORD OF REVISIONS

1 2

3 1 2 3

3-1 3-2

4 5

6 7

8

GENERAL DESCRIPTION ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS ELECTRICAL CHARACTREISTICS INTERFACE CONNECTIONS

3-3

SIGNAL TIMING SPECIFICATIONS

3-4

SIGNAL TIMING WAVEFORMS COLOR INPUT DATA REFERNECE

3-5

POWER SEQUENCE

3-6

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OPTICAL SPECIFICATIONS MECHANICAL CHARACTERISTICS RELIABILITY

INTERNATIONAL STANDARDS

7-1

SAFETY EMC

7-2

Packing

4

5

6

7

8

9

10 11 12 14 17

21 22

22 22

23

DESIGNATION OF LOT MARK

8-1 8-2

Packing FORM

9

Ver. 0.0 Oct. 17, 2001

PRECAUTIONS

23 23

24

2 / 26

Product Specification

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RECORD OF REVISIONS

Revision No Revision Date Page DESCRIPTION

0.0 OCT 17, 2001 - First Draft

LP141X11

Liquid Crystal Display

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Ver. 0.0 Oct. 17, 2001

3 / 26

LP141X11

Column driver circuit

Row Driver circuit

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Liquid Crystal Display

Product Specification

1. General Description

The LP141X11-A2 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp(CCFL) 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 a 14.1 inch diagonally measured active display area with XGA resolution(768 vertical by 1024 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 LP141X11-A2 has been designed to apply the interface method that enables low power, high speed, low EMI. Flat Link must be used as a LVDS(Low Voltage Differential Signaling) chip.

The LP141X11-A2 is intended to support applications where thin thickness, wide viewing angle(option) low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LP141X11-A2 characteristics

provide an excellent flat display for office automation products such as Notebook PC or Monitors.

Timing

Control

Block

CN1

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CN

2

General Features

Active screen size Outline Dimension Pixel Pitch

Pixel format Color depth Luminance, white Power Consumption Weight Display operating mode

Surface treatments

TFT-LCD

FlatLink interface

Power

Block

14.1 inches(35.71cm) diagonal

298.5(H) x 226.5(V) x 5.3(D) mm(Typ.)

0.279 mm x 0.279mm 1024 horiz. By 768 vert. Pixels RGB strip arrangement

6-bit, 262,144 colors

150 cd/m2(CCFL 6mA)

Total 4.2 Watt(CCFL 5mA)

430g(Typ.)

Transmissive mode, normally white Hard coating(3H)

Anti-glare treatment of the front polarizer, HAZE(25%)

(1024×768)

Backlight Ass’y

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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

Parameter symbol

Power Input Voltage Operating Temperature Storage Temperature Operating Ambient Humidity Storage Humidity

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.

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Wet Bulb Temperature [℃℃℃℃]

10

0

20

V

CC

T

OP

T

ST

H

OP

H

ST

50

40

30

Values

Min. Max.

-0.3 0

-20 10 10

90% 80%

60

4.0 50 60 90 90

60

40

20

10

Units Notes

Vdc

°C °C

%RH %RH

%

Humidity[(%)RH]

%

At 25 ± 5°C

1 1 1 1

Storage

Operation

-20

Ver. 0.0 Oct. 17, 2001

10

20 30 40 50

Dry Bulb Temperature [℃℃℃℃]

60 70 800

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Liquid Crystal Display

Product Specification

3. Electrical Specifications 3-1. Electrical Characteristics

The LP133X9-A2LG requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second input which powers the CCFL, is typically generated by an inverter. The inverter is an external unit to the LCD.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

Power Supply Input Voltage Power Supply Input Current Differential Impedance Power Consumption

LAMP :

Operating Voltage Operating Current Established Starting Voltage

at 25 °C at 0 °C

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Operating Frequency Discharge Stabilization Time Power Consumption Life Time

Note : The design of the inverter must have specifications for the lamp in LCD Assembly.

The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by the characteristics of the DC-AC inverter. So all the parameters of an inverter should be carefully designed so as not to produce too much leakage current from high-voltage output of the inverter. When you design or order the inverter, please make sure unwanted lighting caused by the mismatch of the lamp and the inverter(no lighting, flicker, etc) never occurs. When you confirm it, the LCD Assembly should be operated in the same condition as installed in you instrument.

1. The specified current and power consumption are under the VCC=3.3V, 25°C,fV=60Hz condition whereas mosaic pattern is displayed and fVis the frame frequency.

2. This impedance value is needed to proper display and measured from LVDS TXto the mating connector.

3. The variance of the voltage is ± 10%.

4. The voltage above VSshould be applied to the lamps for more than 1 second for start-up. Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.

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V

I

CC

Zm

P

V

I V

f

T

P

CC

C

BL

S

BL

S

BL

Min. Typ. Max.

3.0

-

90

-

630

3.0

-

50

-

10,000

Values

3.3

0.240

100

0.8

675

5.0

-

65

3.4

-

3.6

0.300

110

1.2

780

6.0

1140 1370

80

3

3.9

-

Units Notes

Vdc

A

ohm

Watts

V

RMS

mA

V

RMS

V

RMS

kHz

Minutes

Watts

Hrs

1 2 1

3 4

5 6 7 8

Ver. 0.0 Oct. 17, 2001

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LP141X11

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Liquid Crystal Display

Product Specification

5. The output of the inverter must have symmetrical(negative and positive) voltage waveform and symmetrical current waveform.(Unsymmetrical ratio is less than 10%) Please do not use the inverter which has unsymmetrical voltage and unsymmetrical current and spike wave. Lamp frequency may produce interface with horizontal synchronous frequency and as a result this may cause beat on the display. Therefore lamp frequency shall be as away possible from the horizontal synchronous frequency and from its harmonics in order to prevent interference.

6. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%. TSis the time required for the brightness of the center of the lamp to be not less than 95%.

7. The lamp power consumption shown above does not include loss of external inverter. The used lamp current is the lamp typical current.

8. The life is determined as the time at which brightness of the lamp is 50% compared to that of initial value at the typical lamp current on condition of continuous operating at 25 ± 2°C.

※ Do not attach a conducting tape to lamp connecting wire.

If the lamp wire attach to a conducting tape, TFT-LCD Module has a low luminance and the inverter has abnormal action. Because leakage current is occurred between lamp wire and conducting tape.

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Product Specification

3-2. Interface Connections

Interface chip must be used FlatLink, part No. THC63LVDM63A(Transmitter), THC63LVDF64A(Receiver)

made by Thine Microsystems, Inc.

This LCD employs two interface connections, a 20 pin connector is used for the module electronics and the

other connector is used for the integral backlight system.

The electronics interface connector is a model GT122-20P-H13 manufactured by LG CABLE.

The pin configuration for the connector is shown in the table below.

Table 3. MODULE CONNECTOR PIN CONFIGURATION(LVDS)

Pin Symbol Description Notes

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

The backlight interface connector is a model BHSR-02VS-1, manufactured by JST. The mating connector

part number is SM02B-BHSS-1 or equivalent.

The pin configuration for the connector is shown in the table below.

Vcc

Vcc GND GND

A1M

A1P

GND

A2M

A2P

GND

A3M

A4P

GND

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CLKM

CLKP

GND

NC

NC GND GND

Power(3.3V) Power(3.3V)

Ground

Ground Differential Signal Differential Signal

Ground No Connection No Connection

Ground Ground

1. Interface chips

1.1 LCD : LPS4S102S6LM(LCD Controller)

including LVDS(SAMSUNG) Receiver (LVD4105X)

1.2 System : THC63LVDM63A

*Pin to Pin compatible with THINE LVDS

2. Connector

2.1 LCD : GT122-20P-H13 with LG CABLE

2.2 Mating : F1-SE20M-HF with JAE or compatible

2.3 Connector pin arrangement

20

1

or equivalent.

Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION

Pin Symbol Description Notes

1 2

Notes : 1. The high voltage side terminal is colored pink. The low voltage side terminal is green

Ver. 0.0 Oct. 17, 2001

HV

LV

Power supply for lamp

(High voltage side)

Power supply for lamp

(Low voltage side)

1 1

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Liquid Crystal Display

Product Specification

Table 5. REQUIRED SIGNAL ASSIGNMENT FOR FlatLink Transmitter

Pin# Pin Name Require Signals Pin# Pin Name Require Signals

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

D4

Vcc

D5 D6

GND

D7 D8

Vcc

D9

D10

GND

D11 D12

NC

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D13 D14

GND

D15 D16 D17

Vcc D18 D19

GND

R4

Vcc

R5 G0

GND

G1 G2

Vcc

G3 G4

GND

G5 B0

NC

B1 B2

GND

B3 B4 B5

Vcc HSYNC VSYNC

GND

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25

D3 D2

GND

D1 D0 NC

LVDS GND

Y0M

Y0P

Y1M

Y1P

LVDS Vcc

LVDS GND

Y2M

Y2P

CLKOUTM

CLKOUTP

LVDS GND

PLLGND

PLLVcc

PLLGND

SHDN CLKIN

D20

LVDS GND

LVDS Vcc

LVDS GND

PLL GND

PLL Vcc

PLL GND

DE(Data Enable)

R3 R2

GND

R1 R0

NC

A0M A0P A1M A1P

A2M A2P

CLKM

CLKP

SHDN

Dclk

Notes : Refer to LVDS Transmitter Data Sheet for detail descriptions.

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Liquid Crystal Display

Product Specification

3-3. Signal Timing Specifications

This is the signal timing required at the input of the LVDS Transmitter. All of the interface signal timing

should be satisfied with the following specifications for it’s proper operation.

Table 6. Timing Table

ITEM SYMBOL MIN TYP. MAX. UNIT NOTES

Dclk

Hsync

Vsync

DE

(Data

Enable)

Period

Frequency

Width

Frequency

Width t

Horizontal Valid

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Horizontal Back Porch

Horizontal Front Porch

Horizontal Blank

Vertical Valid

Vertical Back Porch

Vertical Front Porch

t

CLK

- 63 65 67 MHz

t

HP

t

WH

t

VP

f

V

t

WV

t

HV

t

HBP

t

HFP

- 24 ~ tHP- t

t

VV

t

VBP

t

VFP

15.3 15.4 15.5 ns

1206 1344 1364Period

8 136 240

780 806 830Period

60 60 60

1 6 24

1024 1024 1024

8 - 8 - -

HV

768 768 768

2 - 1 - -

t

CLK

t Hz

t

CLK

t

HP

tWH+ t

HBP

+ t

HFP

Vertical Blank

Ver. 0.0 Oct. 17, 2001

- 4 ~ tVP- t

VV

tWV+ t

+ t

VBP

10 / 26

VFP

3-4. Signal Timing Waveforms

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LP141X11

Liquid Crystal Display

Product Specification

t

CLK

Dclk

INVALID

DATA

DE(Data Enable)

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Hsync

t

WH

Hsync, Vsync, DE, DATA

0.5V

CC

0.7Vcc

0.3Vcc

VALID

INVALID

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t

HP

t

HBP

DE(Data Enable)

t

VP

t

WV

Vsync

DE(Data Enable)

Ver. 0.0 Oct. 17, 2001

t

VBP

t

HV

t

VV

t

P

t

HF

VFP

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Liquid Crystal Display

Product Specification

3-5. 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

Basic Colors

Red

Green

Color

Black Red(63) Green(63) Blue(63) Cyan Magenta Yellow White

Red(00) Dark

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Red(01)

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Red(02)

:

Red(61) Red(62) Red(63) Bright

Green(00)Dark Green(01) Green(02)

:

Green(61) Green(62) Green(63)

MSB LSB MSB LSB MSB LSB

R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0

0 1 0 0 0 1 1 1

0 0 0

:

1 1 1

0 0 0

:

0 0

Bright

0

Red Green Blue

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

:

1

0

1

0

1

0

1

0

1

0

1

0

:

0

1

0

1

0

1

0

1

0

1

0

1

0

:

0

:

0

Blue(00) Dark Blue(01) Blue(02)

Blue

Ver. 0.0 Oct. 17, 2001

:

Blue(61) Blue(62) Blue(63) Bright

0

:

0

1

0

1

0

:

0

1

0

1

0

1

0

1

12 / 26

3-6. Power Sequence

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LP141X11

Liquid Crystal Display

Product Specification

Power Supply For LCD

V

CC

Interface Signal,

V

(LVDS Signal of Transmitter)

Power for Lamp

i

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Parameter

Min. Typ. Max.

0V

90%

0V

OFF

Values

90%

10%10%

T

7

T

2

T

1

Valid Data

T

3

LAMP ON

Units

4

T

5

OFF

T

6

T

1

T

2

T

3

T

4

T

5

T

6

T

7

-

0 200 200

0

-

400

-

10 50

50 10

ms ms

-

ms ms ms ms ms

Notes : 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 for LCD VCCto 0V.

3. Lamp power must be turn on after power supply for LCD and interface signal are valid.

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4. Optical Specification

Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 30 minutes in a dark environment at 25 °C. The values specified are at an approximate distance 50cm from the LCD surface at a viewing angle of Φ and θ equal to 0 °.

FIG. 1 presents additional information concerning the measurement equipment and method.

FIG. 1 Optical Characteristic Measurement Equipment and Method

Optical Stage(x,y)

LCD Module

Parameter Symbol

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Contrast Ratio Surface Luminance, white Luminance Variation Response Time

CIE Color Coordinates

Rise Time Decay Time

Red Green Blue White

Field = 1 °

500mm

°

°°

Table 8. OPTICAL CHARACTERISTICS

Values

Min. Typ. Max.

L

δ

CR

WH

WHITE

Tr

R

Tr

D

XR

YR XG YG

XB

YB XW YW

150 120

-

0.535

0.302

0.279

0.502

0.124

0.103

0.282

0.293

250 150

-

15 30

0.565

0.332

0.309

0.532

0.154

0.133

0.312

0.323

Prichard 880 or equivalent

(Ta=25 °C, VCC=3.3V, fV=60Hz

Dclk=65MHz, IBL=6mA)

Units Notes

-

1.45

30 50

0.595

0.362

0.339

0.562

0.184

0.163

0.342

0.353

cd/m

ms

1

2

2 3 4

Viewing Angle

Gray Sclae

Ver. 0.0 Oct. 17, 2001

x axis, right(φ=0°) x axis, left (φ=180°) y axis, up (φ=90°) y axis, down (φ=270°)

θr

θl θu θd

40 40 10 30

-

degree

5

6

14 / 26

Product Specification

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LP141X11

Liquid Crystal Display

Notes :

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 center point across the LCD surface 50cm from the surface with all pixels displaying white. For more information see FIG 2. When IBL=6mA, L

3. The variation in surface luminance , δ WHITE is determined by measuring LONat each test position 1 through 5, and then dividing the maximum LONof 5 points luminance by minimum L of 5 points luminance. For more information see FIG 2.

δ WHITE = Maximum(L

4. Response time is the time required for the display to transition from 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

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135cd/m2(Min.) 170cd/m2(Typ.)

WH=

ON1,LON2

Gray Level

, ….. L

) ÷ Minimum(L

ON5

Luminance(%)

(Typ.)

ON1,LON2

, ….. L

ON5

)

ON

L0 L7 L15 L23 L31 L39 L47 L55 L63

Ver. 0.0 Oct. 17, 2001

0.39

1.14

4.44

10.5

21.3

36.9

57.2

78.4 100

15 / 26

FIG. 2 Luminance

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LP141X11

Liquid Crystal Display

Product Specification

H

A

B

V

A : H/4 mm B : V/4 mm H : 285.7 mm V : 214.3 mm @ H,V : Active Area

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2

1

4

3

5

Active Area

H

2

512

384

V 2

V

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”.

Tr

%

100

90

Optical

Response

10

0

Ver. 0.0 Oct. 17, 2001

white

R

black

Tr

D

white

16 / 26

FIG. 4 Viewing angle

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Product Specification

θ

= 0。

φ

= 90。

(12:00)

yu

z

LP141X11

Liquid Crystal Display

A

θ

φ

= 180。

xl

(9:00)

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TFT LCD MODULE

z' yd

φ

= 270。

(6:00)

φ

= 0。

(3:00)

xr

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5. Mechanical Characteristics

The contents provide general mechanical characteristics for the model LP141X11-A2. In addition

the figures in the next page are detailed mechanical drawing of the LCD.

LP141X11

Horizontal

Outside dimensions

Bezel area

Active display area

Weight(approximate)

Surface Treatment

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Vertical Thickness Horizontal Vertical Horizontal Vertical

430g(Typ.), 440g(Max.)

Hard coating(3H) Anti-glare treatment of the front polarizer Haze(25%)

298.5 ± 0.5mm

226.5 ± 0.5mm

5.3mm(typ), 5.5mm(max)

288.8 ± 0.5mm

217.3 ± 0.5mm

285.7mm

214.3mm

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Label표기 모델명/Bar code/LG mark

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Product Specification

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* Mounting Screw depth

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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.

depth Min. : “A” =1.5

depth Max : “B” =2.5 * Mounting screw Dim. : “C” = 3.1(typ.) *Torque : Max 2.0 kgf.cm

(Measurement gauge : torque meter)

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Product Specification

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6. Reliability

Environment test condition

No. Test Item Conditions

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

LP141X11

Liquid Crystal Display

5 Vibration test

(non-operating)

6

7 Altitude

{ 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.

Shock test (non-operating)

operating storage / shipment

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Sine wave, 10 ~ 500 ~ 10Hz, 1.5G, 0.37oct/min 3 axis, 1hour/axis

Half sine wave, 180G, 2ms one shock of each six faces(I.e. run 180G 2ms for all six faces)

0 - 10,000 feet(3048m) 0 - 40,000 feet(12,192m)

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Product Specification

7. International Standards 7-1. Safety

a) UL 1950 Third Edition, Underwriters Laboratories, Inc. Jan. 28, 1995.

Standard for Safety of Information Technology Equipment Including Electrical Business Equipment.

b) CAN/CSA C22.2 No. 950-95 Third Edition, Canadian Standards Association, Jan. 28, 1995.

Standard for Safety of Information Technology Equipment Including Electrical Business Equipment.

c) EN 60950 : 1992+A1: 1993+A2: 1993+A3: 1995+A4: 1997+A11: 1997

IEC 950 : 1991+A1: 1992+A2: 1993+A3: 1995+A4: 1996 European Committee for Electrotechnical Standardization(CENELEC) EUROPEAN STANDARD for Safety of Information Technology Equipment Including Electrical Business Equipment.

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) C.I.S.P.R “Limits and Methods of Measurement of Radio Interface Characteristics of

Information Technology Equipment.“ International Special Committee on Radio Interference

c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of

Information Technology Equipment.“ European Committee for Electrotechnical Standardization

(CENELEC), 1998

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LP141X11

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8. Packing

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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 D : YEAR E : MONTH F,G : PANEL CODE H : ASSEMBLY CODE I,J,K,L,M : SERIAL NO.

Note:

1. YEAR

LP141X11

Liquid Crystal Display

Product Specification

YEAR

Mark

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2. MONTH

MONTH

Mark

3. Serial No.

Serial No.

Mark

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.

97

98

7

999200002001120022200332004420055200662007

8

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Jan.1Feb.2Mar.3Apr.4May.5Jun.6Jul.7Aug.8Sep.9Oct.ANov.BDec.

1 ~ 99999

00001 ~ 99999

100000 ~ A0001 ~ A9999,·········, Z9999

8-2. Packing Form

7

C

a) Package quantity in one box : 10 pcs b) Box Size : 301mm × 278mm × 355mm

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LP141X11

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Liquid Crystal Display

Product Specification

9. PRECAUTIONS

Please pay attention to the followings when you use this TFT LCD module.

9-1. MOUNTING PRECAUTIONS

(1) You must mount a module using holes arranged in four corners or four sides. (2) You should consider the mounting structure so that uneven force(ex. Twisted stress) is not applied

to the module. And the case on which a module is mounted should have sufficient strength so that external force is not transmitted directly to the module.

(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.

Transparent protective plate should have sufficient strength in order to the resist external force. (4) You should adopt radiation structure to satisfy the temperature specification. (5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former

generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit

break by electro-chemical reaction. (6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB

pencil lead. And please do not rub with dust clothes with chemical treatment.

Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental

to the polarizer.) (7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials

like chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the

adhesives used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because

they cause chemical damage to the polarizer. (8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes

deformations and color fading. (9) Do not open the case because inside circuits do not have sufficient strength.

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9-2. OPERATING PRECAUTIONS

(1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :

V=±200mV(Over and under shoot voltage) (2) Response time depends on the temperature.(In lower temperature, it becomes longer.) (3) Brightness depends on the temperature. (In lower temperature, it becomes lower.)

And in lower temperature, response time(required time that brightness is stable after turned on)

becomes longer. (4) Be careful for condensation at sudden temperature change. Condensation makes damage to

polarizer or electrical contacted parts. And after fading condensation, smear or spot will occur. (5) When fixed patterns are displayed for a long time, remnant image is likely to occur. (6) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference

shall be done by system manufacturers. Grounding and shielding methods may be important to

minimized the interference.

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LP141X11

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Liquid Crystal Display

Product Specification

9-3. ELECTROSTATIC DISCHARGE CONTROL

Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.

9-4. PRECAUTIONS FOR STRONG LIGHT EXPOSURE

Strong light exposure causes degradation of polarizer and color filter.

9-5. STORAGE

When storing modules as spares for a long time, the following precautions are necessary.

(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the

temperature between 5°C and 35°C at normal humidity.

(2) The polarizer surface should not come in contact with any other object.

It is recommended that they be stored in the container in which they were shipped.

9-6. HANDLING PRECAUTIONS FOR PROTECTION FILM

(1) When the protection film is peeled off, static electricity is generated between the film and polarizer.

This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-blown equipment or in such a condition, etc.

(2) The protection film is attached to the polarizer with a small amount of glue. If some stress is applied

to rub the protection film against the polarizer during the time you peel off the film, the glue is apt to remain on the polarizer. Please carefully peel off the protection film without rubbing it against the polarizer.

(3) When the module with protection film attached is stored for a long time, sometimes there remains a

very small amount of glue still on the polarizer after the protection film is peeled off.

(4) You can remove the glue easily. When the glue remains on the polarizer surface or its vestige is

recognized, please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal-hexane.

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