LG LP-141XA-D1AP Service manual

LP141XA

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Datasheet pdf - http://www.DataSheet4U.co.kr/

LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

SPECIFICATION

FOR

APPROVAL

( ) Preliminary Specification
( ♦♦♦♦ ) Final Specification

Title 14.1” XGA TFT LCD

BUYER SUPPLIER LG.Philips LCD Co., Ltd.
MODEL MODEL LP141XA-D1AP

SAFETY APPLICATION MODEL LP141XA

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

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SIGNATURE

/

/

/

DATE

APPROVED BY

S. H. Kang / G. Manager

REVIEWED BY

W. C. Shin / Manager

Y. W. Park / Manager

PREPARED BY

Y. C. Jung / Engineer

J. D. Kim / Engineer

Product Engineering Dept.

LG.Philips LCD Co., Ltd.

DATE

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LP141XA

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Datasheet pdf - http://www.DataSheet4U.co.kr/

LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

CONTENTS

NO.

- COVER 1

- CONTENTS 2

- RECORD OF REVISIONS 3
1 GENERAL DESCRIPTION 4
2 ABSOLUTE MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6

3-1 ELECTRICAL CHARACTERISTICS 6
3-2 INTERFACE CONNECTIONS 7
3-3 SIGNAL TIMING SPECIFICATIONS 9
3-4 SIGNAL TIMING WAVEFORMS 10
3-5 COLOR INPUT DATA REFERENCE 11
3-6 POWER SEQUENCE 12
3-7 Vcc DIP CONDITION 13

4 OPTICAL SPECIFICATIONS 14
5 MECHANICAL CHARACTERISTICS 15

ITEM Page

6 RELIABILITY 19
7 INTERNATIONAL STANDARDS 20

7-1 SAFETY 20
7-2 EMC 20

8 PACKING 21

8-1 DESIGNATION OF LOT MARK 21
8-2 PACKING FORM 21

9 PRECAUTIONS 22

APPENDIX
A-1 OPTICAL CHARACTERISTIC MEASUREMENT EQUIPMENT AND METHOD 24
A-2 LUMINANCE 24
A-3 RESPONSE TIME 24
A-4 VIEWING ANGLE 25

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LP141XA

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LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

RECORDS OF REVISIONS

Version No Date Page

0.0

1.0

Jun. 29, 1999
May. 01, 2000 - All

DESCRIPTION

First Draft
New spec replaces the old one.

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LP141XA

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Datasheet pdf - http://www.DataSheet4U.co.kr/

LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

1. General Description

The LP141XA-D1AP is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) 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
palette of more than 262,144 colors.
The LP141XA-D1AP 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 LP141XA-D1AP 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
LP141XA-D1AP characteristics provide an excellent flat panel display for office automation products such as
Notebook PC.

Timing

Control

Block

CN1

FlatLink interface

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CN2

Power

Block

Row Driver circuit

Column driver circuit

TFT-LCD

(1024×768)

Backlight Ass’y

General Features

Active screen size 14.1 inches(33.78cm) diagonal
Outline dimensions 298.5(H) × 227.5(V) × 5.8(D) mm (typ)
Pixel pitch 0.279 mm × 0.279 mm
Pixel format 1024 horiz. By 768 vert. pixels
RGB stripe arrangement
Color depth 6-bit, 262,144 colors
Luminance, White 115 cd/m2 (typ)
Power Consumption Total 4.97Watt(typ)
Weight 565g (typ)
Display operating mode transmissive mode, normally white
Surface treatments hard coating(3H),
anti-glare treatment of the front polarizer

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LP141XA

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LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

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

Note: 1. Temperature at 5mm above display center of LCD Module.

V

CC

TOP

TST

Values

Min. Max.

-0.3
0

-20

+3.6

+50
+60

Units Notes

Vdc

℃
℃

at 25℃

1, 2
1, 2

Ta ≤ 40℃ : 90%RH Max
Ta ＞ 40℃ : Absolute Humidity shall be less than Ta = 40℃ 90%RH .
These shall be no dew condensation.

2. Humidity Min. 5%RH, Max. 90%RH

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LP141XA

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Datasheet pdf - http://www.DataSheet4U.co.kr/

LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

3. Electrical Specifications
3-1. Electrical Characteristics

The LP141XA-D1AP 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:

Values
Min. Typ. Max.
MODULE:
Power Supply Input Voltage
Power Supply Input Current
Differential Impedance
Power Consumption
Rush current

LAMP
Operating Voltage
Operating Current
Established Starting Voltage
at 25℃

at 0℃
Operating Frequency
Power Consumption
Life Time

Notes: 1. The specified current and power consumption are under the Vcc = 3.3V , 25℃, fv = 60Hz condition
whereas Black pattern is displayed.

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

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3. The duration of rush current is about 20ms.

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

5. The transformer output voltage in the inverter must be high considering to the loss of the ballast
capacitor in the inverter.

6. The lamp power consumption shown above does not include loss of external inverter.

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

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V

I

CC

Zm

Pc

I

RUSH

V

IBL

f

BL

PBL

CC

BL

3.0

-

90

-

-

680

3.0

-

-

40

-

10,000

3.3

0.410
100

1.35

1.5

725

5.0

-

-

60

3.63

-

3.6

0.640
110

2.12

1.8

850

6.0

1170
1450

80

4.08

-

Vdc

A

ohm

Watts

A

V

RMS

mA

V

RMS

V

RMS

kHz

Watts

Hrs

Notes Units Symbol Parameter

1
2
1
3

4
5

6
7

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LP141XA----D1AP

Product Specification

Product Specification

Product SpecificationProduct Specification

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

D1AP

D1APD1AP

3-2. Interface Connections

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 FI-SEB-20P-HF manufactured by JAE or equivalent. The pin
configuration for the connector is shown in the table below.

Pin Symbol

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.

Notes: 1. The high voltage input terminal is colored pink.

2. The low voltage input terminal is colored black.

Table 3 MODULE CONNECTOR PIN CONFIGURATION (LVDS) [CN1]

Description Notes

VCC

VCC
GND
GND

A0M

A0P

GND

A1M

A1P

GND

A2M

A2P

GND

CLKM

CLKP

GND

NC

NC
GND
GND

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Table 4 BACKLIGHT CONNECTOR PIN CONFIGURATION [CN2]

Pin Symbol Description Notes

1
2

Difference Signal
Difference Signal

Difference Signal
Difference Signal

Difference Signal
Difference Signal

Difference Signal
Difference Signal

No Connection
No Connection

Power (3.3V)
Power (3.3V)

Ground
Ground

Ground

Ground

Ground

Ground

Ground
Ground

HV

LV

1. Interface chips

1.1 LCD : FPD85310(National Semiconductor)

2. Connector

2.1 LCD : 15021-2040R(UJU Electronics)

2.2 Mating
JAE : FI-SE20M-HF(FPC type)
JAE : FI-SE20S-HF(Wire type)

2.3 Connector pin arrangement

High voltage input

Low voltage input

···

CN1

Viewing on Display side

1
2

CN2

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Product Specification

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Table 5 REQUIRED SIGNAL ASSIGNMENT FOR FlatLink Transmitter

Pin # Pin Name

1 D4 R4 48
2 Vcc Vcc 47

3 D5 R5 46
4 D6 G0 45
5 GND GND 44
6 D7 G1 43
7 D8 G2 42 LVDS GND
8 Vcc Vcc 41

9 D9 G3 40
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

D10 G4 39

GND GND 38

D11 G5 37 LVDS Vcc
D12 B0 36 LVDS GND

NC NC 35
D13 B1 34
D14 B2 33 CLKOUTM

GND GND 32 CLKOUTP

D15 B3 31 LVDS GND
D16 B4 30 PLLGND

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D17 B5 29 PLLVcc

Vcc Vcc 28 PLLGND
D18 HSYNC 27
D19 VSYNC 26 CLKIN Dclk

GND GND 25

Require Signals Pin # Pin Name

GND GND

Y0M A0M

Y0P A0P

Y1M A1M

Y1P A1P

Y2M A2M

Y2P A2P

SHDN SHDN

D20 DE(Data Enable)

LP141XA

LP141XA----D1AP

LP141XA LP141XA

Liquid Crystal Display

Liquid Crystal Display

Liquid Crystal Display Liquid Crystal Display

Require Signals
D3 R3
D2 R2

D1 R1
D0 R0
NC NC

LVDS GND

LVDS Vcc

LVDS GND

CLKM
CLKP

LVDS GND

PLL GND

PLL Vcc

PLL GND

D1AP

D1APD1AP

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

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