LG LM-200WD3-TLA1 Service manual

SPECIFICATION

( ) Preliminary Specification (◆◆◆◆ ) Final Specification

Product Specification

FOR

APPROVAL

LM200WD3

quid Crystal Display

itle

BUYER

MODEL

www.jxlcd.com

SIGNATURE DATE

ACER

20.0” HD+ TFT LCDT

SUPPLIER LG Display Co., Ltd.

*MODEL LM200WD3

SUFFIX TLA1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

S.G.Hong / G.Manager

REVIEWED BY

B. C. KIM / Manager [C]

Y.H.HWANG / Manager [M]

D. Y. SEOK / Manager [P]

DATE

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

Ver.1.0 Ja

nuary, 15, 2010

PREPARED BY

K.H.LEE / Engineer

Product Engineering Dept.

LG Display Co., Ltd

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Product Specification

Contents

LM200WD3

quid Crystal Display

COVER

CONTENTS

RECORD OF REVISIONS

GENERAL DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

INTERFACE CONNECTIONS

SIGNAL TIMING SPECIFICATIONS

SIGNAL TIMING WAVEFORMS

COLOR INPUT DATA REFERNECE

POWER SEQUENCE

POWER DIP CONDITION

OPTICAL SFECIFICATIONS

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MECHANICAL CHARACTERISTICS

ITEM

Page

11LVDS characteristics3)

194

255

RELIABILITY

INTERNATIONAL STANDARDS

SAFETY

EMC

PACKING

DESIGNATION OF LOT MARK

PACKING FORM

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286

297

308

31PRECAUTIONS9

31MOUNTING PRECAUTIONS1)

31OPERATING PRECAUTIONS2)

32ELECTROSTATIC DISCHARGE CONTROL3)

32PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)

32STROAGE5)

32HANDLING PRECAUTIONS FOR PROTECTION FILM6)

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Product Specification

Record of revisions

LM200WD3

quid Crystal Display

Revision

geRevision Date

First Draft(Preliminary)-Sep. 23. 20090.0

7Dec.10.20090.1

26,27

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LED array electrical characteristics update

Signal timing and waveforms update14,15

Final DraftJan. 15. 20101.0

LCM 2D drawing update

DescriptionPa

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LM200WD3

quid Crystal Display

Product Specification

1. General description

LM200WD3-TLA1 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode(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. It has a 20.0 inch diagonally measured active display area with HD+ resolution (900 vertical by 1600 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 8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,7M colors with Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method that enables low power, high speed, low EMI. FPD Link or compatible must be used as a LVDS(Low Voltage Differential Signaling) chip. It is intended to support applications where thin thickness, wide viewing angle, low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LM200WD3-TLA1 characteristics provide an excellent flat panel display for office automation products such as monitors.

FIG. 1 Block diagram

LVDS

pair #1

LVDS

pair #2

CN1

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+5V

VLCD

Power circuit

block

Timing

controller

Vled 2ch

RGB

Source driver circuit

TFT-LCD Panel

(1600×RGB×900 pixels)

G900

B/L System (White LED)

S1600

General features

Active screen size 20.0 inches (508.05mm) diagonal

Outline Dimension 462.8(H) x 272.0(V) x 11.5(D) mm(Typ.)

Pixel Pitch 0.09225*RGB(H)mm x 0.27675(V)mm

Pixel Format 1600 horizontal By 900 vertical Pixels. RGB stripe arrangement

Interface LVDS 2Port

Color depth 16.7M colors

Luminance, white 250 cd/m2 ( Center 1Point, typ)

Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)

Power Consumption

Weight 1360g (Typ.)

Display operating mode Transmissive mode, normally White

Surface treatments

Ver.1.0 Ja

Total 14.5W(Typ.), (3.9W@V

Hard coating (3H), Anti-glare treatment of the front polarizer

nuary, 15, 2010

, 10.6W@IBL=110mA)

LCD

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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

LM200WD3

quid Crystal Display

Parameter Notes

Power Supply 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.

Note : 2. Storage condition is guaranteed under packing condition.

FIG. 2 Temperature and relative humidity

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Symbol

LCD

Values

MaxMin

90%

60%

Units

°C500T

°C60-20T

%RH9010H

At 25℃Vdc+6.0-0.3V

1 ,2

Wet Bulb Temperature [℃]

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [℃]

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40%

10%

Storage

Operation

Humidity

[(%)RH]

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LM200WD3

quid Crystal Display

Product Specification

3. Electrical specifications 3-1. Electrical characteristics

It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second input power for the LED/Backlight, is typically generated by an LED driver. The LED driver is an external unit to the LCDs.

Table 2. Electrical characteristics

Parameter Symbol

MODULE :

Power Supply Input Voltage

Permissive Power Input Ripple

Power Supply Input Current

Power Consumption

Inrush current

Note :

1. The specified current and power consumption are under the V

whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.

2. The current is specified at the maximum current pattern.

3. Permissive power ripple should be measured under VCC=5.0V, 25°C, fV(frame frequency)=75Hz

condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under 20MHz.

4. The duration of rush current is about 5ms and rising time of power Input is 500us ± 20%.

FIG.3 pattern for Electrical characteristics

power consumption measurement

LCD

=5.0V, 25 ± 2°C,fV=60Hz condition

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LCD

LCD-MOSAIC

LCD-BLACK

LCD

RUSH

-I

Values

MaxTypMin

935780

1140950

power input ripple

NotesUnit

Vdc5.55.04.5V

3V0.2--V

1mA

2mA

1Watt4.73.9-P

3A3.0--I

White : 255Gray Black : 0Gray

Mosaic Pattern(8 x 6)

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Full Black Pattern

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Product Specification

Table 3. LED array ELECTRICAL CHARACTERISTICS

LM200WD3

quid Crystal Display

Power Consumption

LED Junction

Temperature

LED driver design guide

: The design of the LED driver must have specifications for the LED in LCD Assembly.

The performance of the LED in LCM, for example life time or brightness, is extremely influenced by

the characteristics of the LED driver. So all the parameters of an LED driver should be carefully designed and output current should be

Constant current control.

Please control feedback current of each string individually to compensate the current variation

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among the strings of LEDs.

When you design or order the LED driver, please make sure unwanted lighting caused by

the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs. When you confirm it, the LCD module should be operated in the same condition as installed in

your instrument.

array

ConditionSymbolParameter

Values

Max.Typ.Min.

70--Tj

Unit

℃

Notes

1,7LED :

2,7mA120110-IsLED String Current

3,7V51.048.0-VsLED String Voltage

4,6,7Watt11.310.6-P

5,7Hrs--30,000LED_LTLED Life Time

Notes :

1. Specified values are for a single LED bar.

2. The specified current is input LED chip 100% duty current.

3. The specified voltage is input LED string voltage at typical 110mA 100% duty current.

4. The specified power consumption is input LED bar power consumption at typical 110mA 100% duty current.

5. The life time is determined as the time at which luminance of the LED is 50% compared to that of initial

value at the typical LED current on condition of continuous operating at 25 ± 2°C.

6. The LED bar power consumption shown above does not include loss of external driver. The used LED string current is the LED typical current. Typ Power Consumption is calculated with PBar = Vs(Typ.) x Is(Typ.) x Nstring Max Power Consumption is calculated with PBar = Vs(Max.) x Is(Typ) x Nstring

7. LED operating DC Forward Current and Junction Temperature must not exceed LED Max Ratings at 25 ± 2°C.

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Product Specification

3-2. Interface connections

3-2-1. LCD Module

LCD connector(CN1) : GT103-30S-HF15-E2500(LSM) or Equivalent Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent

Table 4. Module connector(CN1) pin configuration

LM200WD3

quid Crystal Display

Pin No

Symbol Description

RXO0-

RXO0+

RXO1-

RXO1+

RXO2-

RXO2+

GND

RXOC-

RXOC+

RXO3-

RXO3+

RXE0-

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RXE0+

GND

RXE1-

RXE1+

GND

RXE2-

RXE2+

RXEC-

RXEC+

RXE3-

RXE3+

GND

PWM_OUT

VLCD

Minus signal of 1st channel 0 (LVDS)

Plus signal of 1st channel 0 (LVDS)

Minus signal of 1st channel 1 (LVDS)

Plus signal of 1st channel 1 (LVDS)

Minus signal of 1st channel 2 (LVDS)

Plus signal of 1st channel 2 (LVDS)

Ground (AGP)

Minus signal of 1st clock channel (LVDS)

Plus signal of 1st clock channel (LVDS)

Minus signal of 1st channel 3 (LVDS)

Plus signal of 1st channel 3 (LVDS)

Minus signal of 2nd channel 0 (LVDS)

Plus signal of 2nd channel 0 (LVDS)

Ground

Minus signal of 2nd channel 1 (LVDS)

Plus signal of 2nd channel 1 (LVDS)

Ground

Minus signal of 2nd channel 2 (LVDS)

Plus signal of 2nd channel 2 (LVDS)

Minus signal of 2nd clock channel (LVDS)

Plus signal of 2nd clock channel (LVDS)

Minus signal of 2nd channel 3 (LVDS)

Plus signal of 2nd channel 3 (LVDS)

Ground

No Connection (For LCD internal use only.)

Reference signal for LED Driver control

Power Supply (5.0V)

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FIG. 4 Connector diagram

#1 #30

1’st signal pairs

Product Specification

GT103-30S-HF15-E2500(LSM)

2’nd signal pairs

Power(+5V)

M_OUT

Rear view of LCM

LM200WD3

quid Crystal Display

Note:

1. NC: No Connection.

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

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3. All V

4. Input Level of LVDS signal is based on the IEA 664 Standard.

5. PWM_OUT is a reference signal for LED driver control. This PWM signal is synchronized with vertical frequency. Its frequency is 3 times of vertical frequency, and its duty ratio is 50%. If the system don’t use this pin, do not connect.

(power input) pins should be connected together.

LCD

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Product Specification

3-2-2. LED Interface

The LED interface connector is a model FN100-Z04B-C20 manufactured by UJU. The mating connector is a FFC/FPC specified in LED interface connector specification. The pin configuration for the connector is shown in the table below.

Table 5. LED connector pin configuration

No ConnectionNC1

Channel1 Current FeedbackFB12

Channel2 Current FeedbackFB23

LM200WD3

quid Crystal Display

NotesDescriptionSymbolPin

FIG. 5 Backlight connector view

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LED Power SupplyVled4

PCB

LED

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+ 22 hidden pages

LG LM-200WD3-TLA1 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual