Datasheet LP-141XA-A1 Service manual (LG)

www.DataSheet4U.com

( DataSheet : www.DataSheet4U.com )

LG LCD Inc.

( ) Preliminary Specification

Product Specification

SPECIFICATION

For

APPROVAL

LP141XA-A1

Li

quid Crystal Display

( ) Final Specification

Title 14.1” XGA TFT LCD

BUYER NAME PC OBU SUPPLIER LG LCD Inc.

MODEL NAME MODEL NAME LP141XA-A1

www.jxlcd.com

SIGNATURE DATE SIGNATURE DATE

APPROVED BY

S. H. Kang

REVIEWED BY

S. C. YUN

B. H. KOO

PREPARED BY

Please return 1 copy for our confirmation

with your signature and comments.

+

Version 1.4 08 / Jul. / 1999 Page 1/19

H. S. SONG

S. J. LEE

Product Engineering Dept.

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

TABLE of CONTENTS

NO. ITEM Page

-

- TABLE of CONTENTS 2/19

- RECORD of REVISION 3/19

1. GENERAL DESCRIPTION 4/19

2. MAXIMUM RATINGS 5/19

3. ELECTRICAL SPECIFICATIONS 5/19

4. OPTICAL SPECIFICATIONS 6/19

5. INTERFACE CONNECTIONS 7/19

6. SIGNAL TIMING SPECIFICATIONS 9/19

7. SIGNAL TIMING WAVE FORMS 10/19

8. COLOR INPUT DATA REFERENCE 12/19

9. POWER SEQUENCE 13/19

10. MECHANICAL CHARACTERISTICS 14/19

11. HANDLING PRECAUTIONS 16/19

12. INTERNATIONAL STANDARDS 17/19

www.jxlcd.com

- APPENDIX 18/19

COVER 1/19

Version 1.4 08 / Jul. / 1999 Page 2/19

LG LCD Inc.

Product Specification

Record of Revision

DATE AND VERSION DESCRIPTION

LP141XA-A1

Li

quid Crystal Display

22 / Jan. / 1999 & Ver. 1.0

12 / Feb. / 1999 & Ver. 1.1

12 / Apr. / 1999 & Ver. 1.2

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28 / May / 1999 & Ver. 1.3

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Initial Release

1. To Change Model Name (All Page)

LP141X4-C1 → LP141XA-A1

2. To change Power supply current (5 Page)

: Typ Max Typ Max

375 510 → 410 570 [mA]

3. To add International Standards (17 Page)

1. To Changed Color Coordinates (6 Page)

: Min. Typ Max Min. Typ Max

① Rx 0.542 0.572 0.602 → 0.548 0.578 0.608

② Ry 0.320 0.350 0.380 → 0.317 0.347 0.377

③ Gx 0.267 0.297 0.327 → 0.278 0.308 0.338

④ Gy 0.519 0.549 0.579 → 0.507 0.537 0.567

⑤ Bx 0.122 0.152 0.182 → 0.121 0.151 0.181

⑥ By 0.110 0.140 0.170 → 0.101 0.131 0.161

⑦ Wy 0.271 0.301 0.331 → 0.281 0.311 0.341

⑧ Wy 0.312 0.342 0.372 → 0.311 0.341 0.371

1. To change Power Sequence (13 Page)

08 / Jul. / 1999 & Ver. 1.4

Lamp On Time : 200[mS] min. → 50[mS] min.

1. Update Mechanical Drawing(14, 15 Page)

2. Change Power Sequence (13 Page)

VDD off time : 20 [mS] max. → 40 [mS] max.

Version 1.4 08 / Jul. / 1999 Page 3/19

(

)

r

y

(

)

1. General Description

The LG LCD Inc. model LP141XA-A1 LCD is a Color Active Matrix Liquid Crystal Display with an integral

Cold Cathode Fluorescent Tube(CCFT) back light 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 pallet of more than 262,144 colors.

The LP141XA-A1 LCD is intended to support applications where low power consumption, weight and

thickness are critical factors and graphic displays are important. In combination with the vertical

arrangement of the sub-pixels, the LP141XA-A1 characteristics provide an excellent flat panel display for

office automation products such as portable computers.

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

Power Supply

VDD GND

Rin0 -

Rin0 +

Rin1 -

Rin1 +

Rin2 -

Rin2 +

CLK -

CLK +

CN1

LVDS Receiver

Control

Signal

14.1 inch XGA

1024 x RGB x 768

Row Drive

+

www.jxlcd.com

User Connector

Timing Controller

Column Driver

Data & Control Signal

CN2

General Display Characteristics

The following are general feature of the model LP141XA-A1 LCD;

Active display area

Outsize dimensions

Pixel pitch

Pixel format

Color depth

Display operating mode

Version 1.4 08 / Jul. / 1999 Page 4/19

Surface treatment

14.1 inch diagonal

298.5 W x 227.5 H x 5.8 D mm Typ.

0.279 mm x 0.279 mm

1024 horiz. By 768 vert. pixels

RGB stripe arrangement

transmissive mode, normally white

anti-glare treatment of the front polarizer

hard coating(3H),

Back light Assembl

6-bit

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

2. 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 Values Units Notes

Min. Max.

Power Input Voltage

Logic Input Voltage

Operating Temperature

Storage Temperature Note: 1. The Relative Humidity must not exceed 80% non-condensing at temperatures of 40℃ or less. At temperatures greater than 40℃, the wet bulb temperature must not exceed 39℃. At low temperature the brightness of CCFL drop and the life time of CCFL become to be short.

2. Under no condition should the unit be exposed to corrosive chemicals.

V

DD

V

L/H

TOP

TST

0

-0.3

0

-20

4.0

VDD+0.3

+50

+60

Vdc

℃ ℃

at 25℃ at 25℃

1

3. Electrical Specifications

The LP141XA-A1 requires two power inputs. One is employed to power the LCD electronics and to derive the voltages to drive the TFT array and liquid crystal. The second input which powers the backlight CCFT, is typically generated by an inverter. The inverter is an external unit to the LCD.

Parameter Symbol Values Units Notes

Min. Typ. Max.

MODULE:

Power Supply Input Voltage

Power Supply Input Current

Ripple/Noise

Differential input voltage - High

for receiver threshold Low

BACKLIGHT

Backlight Input voltage

Backlight Current

Established starting Voltage

Operating Frequency

CCFL Life Time Notes 1. The current draw and power consumption specified is for 3.3 Vdc at 25℃.

2.Typical value is measured when displaying black screen. Maximum power situation measured with alternating vertical lines by 2 black_white pattern. For more information see Appendix A-1.

3. LVDS common mode voltage, VCM=1.2V

5. The voltage of inverter is more than the established starting voltage.

www.jxlcd.com

4. The backlight power consumption shown above does not include loss of external inverter.

Table 2 ELECTRICAL CHARACTERISTICS:

V

DD

I

DD

-

V

IH

V

IL

V

BL

I

BL

F

BL

3.0

-

-100

680

3.0

40

10,000

3.3

410

60

-

725

5.0

60

3.6

570

100

-

850

6.0

1170

1450

80

Vdc

mA

mV

V

RMS

mA

V

RMS

V

RMS

KHz

Hours

1,2

3

4

25±2℃, 5

0℃

@ I

BL= 6mA

Version 1.4 08 / Jul. / 1999 Page 5/19

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

4. Optical Specifications

Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 30 minutes

in a dark environment at 25℃. The values specified are at an approximate distance 50cm from the LCD

surface at a viewing angle of Φ and θ equal to 0°.

Appendix A presents additional information concerning the specified characteristics.

Table 3 OPTICAL CHARACTERISTICS

, ....B

Values

)

ON13

)

ON13

ON

Parameter Symbol

Contrast Ratio CR 150 250 - - 1

White Surface

Brightness

Brightness Variation SBV - - 1.80 3

Response Time

Color Coordinates

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Viewing

Angle

(CR>10:1)

Notes 1. Contrast Ratio (CR) is defined mathematically as: (Surface Brightness with all white pixels) (Surface Brightness with all black pixels)

2. Surface brightness is 5 spot average of measurement across the LCD surface 50cm from the

3. The variation in surface brightness, SB position 1 through 13, and then dividing the maximum B For more information see Appendix A-3. Maximum (B Minimum (B

4. Response time is the time required for the display to transition from white to black (Rise Time, Tr For additional information see Appendix A-4.

5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are

6. Color Coordinates can be changed according to color filter. (In case of changing color filter, we will tell our customer.)

x axis, right (Φ =0ٛ) θ

x axis, left(Φ =180ٛ) θ

y axis, up(Φ =90ٛ) θ

y axis, down (Φ =270ٛ) θ

surface with all pixels displaying white. For more information see Appendix A-2.

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 Appendix A-5.

IBL=6.0mA

Rise Time TrR - 20 40 msec

Decay Time Tr

RED

GREEN

BLUE

WHITE

) and from black to white (Decay Time, TrD).

R

SB

WH

D

x 0.548 0.578 0.608 - 6

y 0.317 0.347 0.377 - 6

x 0.278 0.308 0.338 - 6

y 0.507 0.537 0.567 - 6

x 0.121 0.151 0.181 - 6

y 0.101 0.131 0.161 - 6

x 0.281 0.311 0.341 - 6

y 0.311 0.341 0.371 - 6

Min. Typ. Max.

100 120 - cd/m2 2

- 30 50 msec

45 degree 5

10 degree 5

30 degree 5

is determined by measuring BON at each test

V

, B

ON1

ON2

, B

ON1

ON2

Units Notes

by the minimum BON.

Version 1.4 08 / Jul. / 1999 Page 6/19

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

5. Interface Connections

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

two pin connector is used for the integral backlight system.

The electronics interface connector is a model FI-SEB-20P-HF or equivalent.

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

Table 4 MODULE CONNECTOR PIN CONFIGURATION (CN1)

Pin Symbol Description Notes

1 VDD Power supply, 3.3V

2 VDD Power supply, 3.3V

3 GND Ground

4 GND Ground

5 Rin0 - Receiver signal (-)

User Connector

6 Rin0 + Receiver signal (+)

7 GND Ground

8 Rin1 - Receiver signal (-)

9 Rin1 + Receiver signal (+)

10 GND Ground

11 Rin2 - Receiver signal (-)

12 Rin2 + Receiver signal (+)

13 GND Ground

14 CLK - Clock signal (-)

15 CLK + Clock signal (+)

16 GND Ground

17 NC Reserved

18 NC Reserved

19 GND Ground

20 GND Ground

Notes: 1. All GND(ground) pins should be connected together and to GND which should also be connected to the LCD’s metal frame.

2. All V

Version 1.4 08 / Jul. / 1999 Page 7/19

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(power input) pins should be connected together.

DD

Pin 1

Viewing on Display side

Pin 20

Interface Connections (cont’d)

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

part number is SM02B-BHSS-1-TB or equivalent. The pin configuration for the connector is shown in the

table below.

Notes: 1. The input power terminal is white

LG LCD Inc.

Product Specification

Table 5 BACKLIGHT CONNECTOR PIN CONFIGURATION (CN2)

Pin Symbol Description Notes

1 2

HV

LV

Lamp power input

Ground

LP141XA-A1

Li

quid Crystal Display

1 2

2. The ground terminal is black.

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6.

Signal Timing Specification

Version 1.4 08 / Jul. / 1999 Page 8/19

This is the characteristics of the interface timing parameters. LVDS input timing and LCD interface timing diagrams are shown in 7.1 and 7.2 LP141XA-A1 with LVDS transmitter recommend to connect to the Display Enable, Horizontal sync, Vertical sync, Clock signal from Video signal controller to input of Transmitter simultaneously.

LG LCD Inc.

Product Specification

6.1. Interface Signal Timing

LP141XA-A1

Li

quid Crystal Display

ITEM SIGNAL ITEM SYMBOL MIN. TYP. MAX. UNIT

LVDS Clock Frequency

Timing Period

(Note 1) LVDS Low to High time Transition time LLHT - 0.75 1.5 ns

LVDS High to Low time Transition time LHLT - 0.75 1.5 ns

Set up time, serial bits Receiver Input Strobe Bit 0 t0 -0.4 0 0.3 ns

Receiver Input Strobe Bit 1 t1 1.8 2.2 2.5 ns

Receiver Input Strobe Bit 2 t2 4.0 4.4 4.7 ns

Receiver Input Strobe Bit 3 t3 6.2 6.6 6.9 ns

Receiver Input Strobe Bit 4 t4 8.4 8.8 9.1 ns

Receiver Input Strobe Bit 5 t5 10.6 11 11.3 ns

Receiver Input Strobe Bit 6 t6 12.8 13.2 13.5 ns

LVDS DENA Low width

Transimitter Horizontal Front Porch

Input Horizontal Back Porch

(note 2-4) Vertical Front Porch

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Vertical Back Porch

fCLKIN

tCLKIN

tWDL

tHFP

tHBP

tVFP

tVBP

- 65 66.6 MHz

15 15.4 - ns

100 - -

0 - -

5 - -

0 - -

4 - -

tCLKIN

tH

HD Frequency

Period

Low width

VD Frequency

Period

Low width

Note : 1. Measurement is made at panel side flex connector with dummy 100 ohm termination.

2. Polarities of HD and VD are negative.

3. DENA should always be positive polarity.

4. CLKIN should appear during all invalid period. HD should appear during invalid period of the

frame cycle.

tH

t

WHL

fV

tV

tWVL

- 48.5 55.9 kHz

1100 1340 -

1 - -

- 60 62 Hz

772 809 -

0.5 - -

Version 1.4 08 / Jul. / 1999 Page 9/19

tCLKIN

tH

LG LCD Inc.

7. Signal Timing Wave Forms

7.1. LVDS Timing

CLKIN -

CLKIN +

Link a + Link a (a = 0,1,2)

Link 0

P0C2

G0

P0C1

R5

P0C7

R4

Link 1

P1C2

B1

P1C1

B0

P1C7

G5

Link 2

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tdp 0

tdp 1

tdp 2

tdp 3

tdp 4

tdp 5

tdp 6

P2C2

www.jxlcd.com

DENA

P2C1

VD

P2C7

HD

V IN -

V IN +

VID

Product Specification

t

CLK

P0C6

R3

P1C6

G4

P2C6

B5

P0C5

R2

P1C5

G3

P2C5

B4

P0C4

R1

P1C4

G2

P2C4

B3

P0C3

P1C3

P2C3

LHLTLLHT

R0

G1

B2

LP141XA-A1

Li

quid Crystal Display

“0” “1”

P0C2 P0C1 P0C7

P1C2 P1C1 P1C7

P2C7 P2C1 P2C2

Typical of all

timing instances

Vdiff = 0 V

VID(H)

0V ± 0.01V

VID(L)

Version 1.4 08 / Jul. / 1999 Page 10/19

K

LG LCD Inc.

7.2 LCD Interface Timing

CL

Product Specification

LP141XA-A1

Li

quid Crystal Display

DATA

(R,G,B)

DENA

HD

DENA

3 2 1

Last Data

1023 Invalid Data Invalid Data

tWDL

First Data

tH = 1/fH

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tHBPtWHL tHFP

tVBPtWVL tVFP

VD

Line data

HD

VD

tV = 1/fV

3

21

4

767

768

Version 1.4 08 / Jul. / 1999 Page 11/19

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

8. 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 6 COLOR DATA REFERENCE

Input Color Data

Color Red Green Blue

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

Basic

Colors

Red

Green

Blue

Black

Red(00)

Green(00)

Blue(00)

Cyan

Magenta

Yellow

White

Red(63) Black

Red(62)

Red(61)

Red(02)

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Red(01)

Red(00)

Green(63) Black

Green(62)

Green(61)

Green(02)

Green(01)

Green(00)

Blue(63) Black

Blue(62)

Blue(61)

Blue(02)

Blue(01)

Blue(00)

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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

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

:

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

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

:

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

Version 1.4 08 / Jul. / 1999 Page 12/19

V

LG LCD Inc.

9. Power Sequence

VDD

0V

10%

Product Specification

90%

10mS max

90%

LP141XA-A1

Li

quid Crystal Display

1 Sec min

10%

20mS max

40mS max

Signals

0

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 V

Lamp ON

0

www.jxlcd.com

to 0V.

DD

10%

50mS min

10%

200mS

10%

Version 1.4 08 / Jul. / 1999 Page 13/19

10. Mechanical Characteristics

The chart below provides general mechanical characteristics for the model LP141XA-A1 LCD. The

surface of the LCD has an anti-glare coating to minimize reflection and a 3H hard coating to reduce

scratching. In addition, the figure below is a detailed mechanical drawing of the LCD. Note that dimension

are given for reference purposes only.

< Front View>

LG LCD Inc.

Product Specification

Outside dimensions Width 298.5 mm typ.

Height 227.5 mm typ.

Thickness 5.8 mm typ.

Active Display area Width 285.7 mm

Height 214.3 mm

Diagonal 14.1 inch

Weight 590 g max.

LP141XA-A1

Li

quid Crystal Display

< Rear View>

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Version 1.4 08 / Jul. / 1999 Page 14/19

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

www.jxlcd.com

11. Handling Precautions

* Mounting Screw depth : 2.0[mm] Min. 2.3[mm] Max. * Torque : 1.3 ~ 1.5 [kgf· cm]

Version 1.4 08 / Jul. / 1999 Page 15/19

Please pay attention to the followings when you use this TFT/LCD module with Back-light unit.

11.1.MOUNTING PREACAUTION

1)You must mount Module using mounting holes arranged on metal frame sides. Be sure to turn off the

power when connecting or disconnecting the circuit.

2) Note that the polarizers are easily damaged. Pay attention not to scratch or press this surface with

any hard object.

3) When the LCD surface become dirty, please wipe it off with a soft material. (ie. cotton ball)

4) Protect the module from the ESD as it may damage the electronic circuit (C-MOS). Make certain that

treatment person’s body are grounded through wrist bend.

5) Do not disassemble the module and be careful not to incur a mechanical shock that might occur

during installation. It may cause permanent damage.

6) Do not leave the module in high temperatures, Particularly in areas of high humidity for a long time.

7) The module not be expose to the direct sunlight.

8) Avoid contact with water as it may a short circuit within the module.

11.2 OPERATING PRECAUTION

1) The spike noise causes the mis-operation of circuits. Be lower the spike noise as follows : VDD=±200mV, V1=±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 turn on)becomes longer.

4) Be careful for condensation at suddern temperature change. Condensation make damage to

polarizer or electrical contact part. And after fading condensation, smear or spot will occur.

5) When fixed pattern are displayed at long times, remnant image is likely to occur.

6) Module has high frequency circuit. If you need to shield the electromagnetic noise. Please do in

yours.

7) When Back-light unit is operating, it sounds. If you need to shield the noise, please do in yours.

11.3 ELECTROSTATIC DISCHARGE CONTROL

Since module is composed with electronic circuit, it is not strong to electrostatic discharge.

Make certain that treatment persons are connected to ground through list band etc.. And don’t touch

I/F pin directly.

11.4 PRECAUTION FOR STRONG LIGHT EXPOSURE.

Strong light exposure causes degradation of polarizer and color filter.

11.5 STORAGE

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

1) Store them in a dark place : do not expose then to sunlight or fluorescent light. Keep the

temperature between 5 and 35 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.

LG LCD Inc.

Product Specification

www.jxlcd.com

LP141XA-A1

Li

quid Crystal Display

Version 1.4 08 / Jul. / 1999 Page 16/19

11.6 HANDLING PRECAUTIONS FOR PROTECTION FILM

1) When the protection film is pealed off, static electricity is generated between the film and the

polarizer. This film should be pealed 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 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 peal off the film, the glue is apt

to remain more on the polarizer. So please carefully peal off the protection film without rubbing it

against the polarizer.

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

very small amount of glue still on the polarizer after the protaction film is pealed off. Please

refrain from storing the module at the high temperature and high humidity for glue is apt to remain

in these condition.

4) The glue may be taken for the modules failure, but 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.

12.1. Safety

12.2. EMC

LG LCD Inc.

Product Specification

12. International Standards

UL1950 “Safety of Information Technology Equipment Including Electrical Business Equipment.

Third Edition” Underwriters Laboratories, Inc. 1995

CAS C22.2 “Safety of Information Technology Equipment Including Electrical Business Equipment.

Third Edition” Canadian Standards Association, 1995

EN 60950 “Safety of Information Technology Equipment Including Electrical Business Equipment.”

European Committee for Electrotechnical Standardization(CENELEC), 1995

Ref. No. EN 60950: 1992 + A1: 1993 + A2: 1993 + A3: 1995 E

(IEC 950: 1991 + A1: 1992 + A2: 1993 + A3: 1995, modified )

ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and

Electronic Equipment in the Range of 9kHz to 40GHz.”

American National Standards Institute(ANSI),1992.

C.I.S P.R “Limits and Methods of Measurement of Radio Interference Characteristics of Information

Technology Equipment.” International Special Committee on Radio Interference

EN 55 022 “Limits and Methods of Measurement of Radio Interference Characteristics of Information

Technology Equipment.” European Committee for Electrotechnical Standardization

(CENELEC),1988

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LP141XA-A1

Li

quid Crystal Display

Version 1.4 08 / Jul. / 1999 Page 17/19

( p

)

8

2

5

2

(

)

m

LG LCD Inc.

Product Specification

※. APPENDIX

A-1 BLACK Pattern & Alternating Vertical Lines by 2 Black_White Pattern

A-2 BRIGHTNESS

R

R G B R G B

G

B R

G B R

G B R G

< Vertical Lines by 2 >

< BLACK >

G G

B

G

B

LP141XA-A1

Li

quid Crystal Display

R B

256 512

23

45

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A-3. 13 SPOT LUMINANCE VARIATION MEASUREMENT LOCATIONS

< Measuring Point >

768

1

ixel

192

384

576

10mm

256 512 768

10m

6

7

10mm

9

11

3

1

10

4

1

13

192

384

576

LINES

10m

Version 1.4 08 / Jul. / 1999 Page 18/19

LG LCD Inc.

Product Specification

LP141XA-A1

Li

quid Crystal Display

A-4 RESPONSE TIME

The response time is defined as the following figure and shall be measured by switching the input signal

for “black” and “white”.

Optical Response

A-5 VIEWING ANGLE

100

90

10

TrR

%

0

white

black

φ = 90。

(12:00)

θ = 0。

yu

z

A

θ

TrD

white

φ

= 180。

φ

xl

(9:00)

www.jxlcd.com

TFT LCD MODULE

z' yd

φ = 270。

(6:00)

φ = 0。

(3:00)

xr

Version 1.4 08 / Jul. / 1999 Page 19/19