LG LM-220WE5-TLA1 Service manual

( ) Preliminary Specification
(◆ ) Final Specification

Title 22” WSXGA+ TFT LCD

LM220WE5

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER DELL
MODEL

www.jxlcd.com

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SIGNATURE DATE

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LM220WE5

SUFFIX TLA1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

H.S. KIM / G.Manager

REVIEWED BY

S.Y. PARK / Manager [C]

D.Y. KIM / Manager [M]

H.S. LEE / Manager [P]

PREPARED BY

S.Y. KIM / Engineer

DATE

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

Ver. 1.0

Product Engineering Dept.

LG Display Co., Ltd

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Product Specification

Contents

LM220WE5

Liquid Crystal Display

No ITEM

COVER
CONTENTS

RECORD OF REVISIONS
1 4
2 5
3 6

1)

2)

3)

4)

5)

6)

7)

8)
4 19
5 24

GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
INTERFACE CONNECTIONS

LVDS characteristics
SIGNAL TIMING SPECIFICATIONS

SIGNAL TIMING WAVEFORMS
COLOR INPUT DATA REFERNECE
POWER SEQUENCE
POWER DIP CONDITION
OPTICAL SPECIFICATIONS

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MECHANICAL CHARACTERISTICS

Page

11
14

15
16
17
18

1
2
3

6
8

6 27
7 28

1)

2)
8 29

1)

2)
9 PRECAUTIONS 30

1) MOUNTING PRECAUTIONS 30

2) OPERATING PRECAUTIONS 30

3) ELECTROSTATIC DISCHARGE CONTROL 31

4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 31

5) STROAGE 31

6) HANDLING PRECAUTIONS FOR PROTECTION FILM 31

Ver. 1.0 Dec., 18, 2008

RELIABILITY
INTERNATIONAL STANDARDS
SAFETY
EMC
PACKING
DESIGNATION OF LOT MARK
PACKING FORM

28
28

29
29

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Product Specification

Record of revisions

Revision No DescriptionDate Page

LM220WE5

Liquid Crystal Display

Ver. 0.0

Ver. 0.1

Ver. 0.2

Ver. 1.0

Aug. 22, 2008

Oct, 22. 2008

Dec, 05. 2008

Dec, 18. 2008

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4

7
10
19

19

4, 24

25, 26

First Draft, Preliminary Specifications

Block Diagram Update, Power Consumption Update
LED Bar Electrical Characteristics Update
LED connector pin configuration update
Color Coordinates Spec update

Color Coordinates Spec update

Final Specifications

Weight Update
Drawing Update

Ver. 1.0 Dec., 18, 2008

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LM220WE5

Liquid Crystal Display

Product Specification

1. General description

LM220WE5-TLA1 is a Color Active Matrix Liquid Crystal Display Light Emitting Diode ( White LED) backlight
system without LED driver. 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 22 inch diagonally measured active
display area with WSXGA+ resolution (1050 vertical by 1680 horizontal pixel ar
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 LM220WE5-TLA1 characteristics provide an excellent flat panel display for
office automation products such as monitors.

ray) Each pixel is divided into

FIG. 1 Block diagram

LVDS

pair #1

LVDS

pair #2

CN1

(30pin)

+5V
VLCD

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General features

Active screen size 21.995 inches(558.673mm) diagonal (Aspect ratio 16:10)
Outline Dimension 493.7(H) x 320.1 (V) x 14.5(D) mm (Typ.)
Pixel Pitch 0.282mm x 0.282mm
Pixel Format 1680 horizontal By 1050 vertical Pixels. RGB stripe arrangement

Timing

controller

Power circuit

block

RGB

FB 6ch

Source driver circuit

S1

G1

TFT-LCD Panel

(1680×RGB×1050 pixels)

G1050

Backlight assembly (Single LED Bar)

S1680

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 1950g(Typ.), 2050g(Max.)
Display operating mode Transmissive mode, normally White
Surface treatments Hard coating (3H), Anti-glare treatment of the front polarizer

Ver. 1.0 Dec., 18, 2008

Total 15.9Watt (Typ.), (4.5Watt@V

, 11.4Watt_w/o driver)

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

LM220WE5

Liquid Crystal Display

Parameter

Power Supply Input Voltage V
Operating Temperature T
Storage Temperature T
Operating Ambient Humidity H
Storage Humidity H

Note : 1. Temperature and relative humidity range a

Wet bulb temperature should be 39 °C

FIG. 2 Temperature and relative humidity

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Wet Bulb
Temperature [℃]

20

10

0

LCD

OP

ST

OP

ST

Max, and no condensation of water.

40

30

Values

Min Max

-0.3 +6.0 Vdc At 25℃
0 50 °C

-20 60 °C
10 90 %RH
10 90 %RH

re shown in the figure below.

90%

60

60%

50

40%

10%

Units

Storage

Operation

Humidity [(%)RH]

NotesSymbol

1

10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [℃]

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LM220WE5

Liquid 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 CCFL/Backlight, is typically generated by an inverter. The
inverter is an external unit to the LCDs.

Table 2. Electrical char acte ri sti cs

Parameter Symbol

MODULE :
Power Supply Input Voltage V
Permissive Power Input Ripple V

Power Supply Input Current

Power Consumption P
Inrush current I

Note :

1. The specified current and power consumption are

LCD

under the V
whereas mosaic pattern(8 x 6) is displayed and f

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

3. Permissive power ripple should be measured under VCC=5.0V, 25°C, f
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 2ms and rising time of power Input is 500us ± 20%.

FIG.3 pattern for Electrical characteristics

=5.0V, 25 ± 2°C,fV=60Hz condition

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LCD

LCD

I

LCD-MOSAIC

I

LCD-BLACK

LCD

RUSH

V

Min Typ Max

4.5 5.0 5.5 Vdc

- - 0.2 V 3

- 900 1040 mA 1

- 1100 1270 mA 2

- 4.5 5.2 Watt 1

- - 3.0 A 3

is the frame frequency.

Values

(frame frequency)=75Hz

V

Unit Notes

power consumption measurement

White : 255Gray
Black : 0Gray

Mosaic Pattern(8 x 6)

Ver. 1.0 Dec., 18, 2008

power input ripple

Full Black Pattern

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Product Specification

Table 3. LED bar Electrical charac teristics

LM220WE5

Liquid Crystal Display

Values

Min. Typ. Max.

LED : 1,7
LED String Current Is_peak - 65 90 mA 2,7
LED String Voltage Vs 27.0 29.25 31.5 V 3,7

P

Power Consumption

LED Life Time LED_LT 30,000 - - Hrs 5,7

LED Junction Temperature Tj - - 110

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

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Constant current control.

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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.

Bar

10.53 11.41 12.29 Watt 4,6,7

UnitParameter Symbol Condition

℃

Notes

7

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 65 mA 100% duty current.

4. The specified power consumption is input LED bar power consumption at typical 65 mA 100% duty current.

5. The life 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 bar current is the LED typical current. (P

7. LED operating DC Forward Current and Junction Temperature must not exceed LED Max Ratings.

Ver. 1.0 Dec., 18, 2008

= Vs x Is x N

Bar

string

)

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Product Specification

3-2. Interface connections

LCD connector(CN1) : 187024-30091 (P-TWO) , IS100-L30B-C23 (UJU)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent

Table 4. Module connector(CN1) pin configuration

LM220WE5

Liquid Crystal Display

Pin No

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

Symbol Description

RXO0­RXO0+
RXO1­RXO1+
RXO2­RXO2+
GND
RXOC­RXOC+
RXO3­RXO3+
RXE0-

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RXE0+
GND
RXE1­RXE1+
GND
RXE2­RXE2+
RXEC­RXEC+
RXE3­RXE3+
GND
NC
NC

PWM_OUT

LCD

V
V

LCD
LCD

V

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
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.)
No Connection (For LCD internal use only.)
Reference signal for burst frequency inverter control
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)

First Pixel data

Second Pixel data

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FIG. 4 Connector diagram

1’st signal pairs

LM220WE5

Liquid Crystal Display

Product Specification

187034-30091 (P-TWO)

#1 #30

2’nd signal pairs

Power(+5V)

PWM_OUT

Rear view of LCM

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 inverter 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

The LED interface connector is a model TBD manufactured by TBD.
The mating connector part number are TBD or equivalent.
The pin configuration for the connector is shown in the table below.

Table 5. LED connector pin configuration

Pin Symbol Description Notes

1 FB1 Channel1 Current Feed Back
2 FB2 Channel2 Current Feed Back
3 FB3 Channel3 Current Feed Back
4 Vled LED Power Supply
5 Vled LED Power Supply

LM220WE5

Liquid Crystal Display

6 Vled LED Power Supply
7 Vled LED Power Supply
8 FB4 Channel4 Current Feed Back
9

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10

FIG. 5 Backlight connector view

FB5
FB6

Channel5 Current Feed Back
Channel6 Current Feed Back

PCB

1

…

10

TBD

Ver. 1.0 Dec., 18, 2008

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