LG Display LM171WX3-TLC2 Specification

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Preliminary Specification

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Final Specification

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LM171WX3

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

Title 17.1” WXGA+ TFT LCD

BUYER DELL

MODEL -

SIGNATURE DATE

/

/

SUPPLIER LG. Display Co., Ltd.

*MODEL LM171WX3

SUFFIX TLC2

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

H.S. KIM / G.Manager

REVIEWED BY

C.K. LEE / Manager [C]

J. H. LEE / Manager [M]

DATE

Y.S. LEE / Manager [P]

/

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

Ver 1.2 Sept. 11, 2008

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PREPARED BY

Y.C. AHN / Engineer

Product Engineering Dept.

LG. Display Co., Ltd

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NO. ITEM Page

- COVER 1

- CONTENTS 2

- RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION 4

2 ABSOLUTE MAXIMUM RATINGS 5

3 ELECTRICAL SPECIFICATIONS 6

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LM171WX3

Liquid Crystal Display

Product Specification

CONTENTS

3-1 ELECTRICAL CHARACTERISTICS 6

3-2 INTERFACE CONNECTIONS 9

3-3 SIGNAL TIMING SPECIFICATIONS 16

3-4 SIGNAL TIMING WAVEFORMS 17

3-5 COLOR INPUT DATA REFERANCE 18

3-6 POWER SEQUENCE 19

3-7 VCC POWER DIP CONDITION 20

4 OPTICAL SPECIFICATIONS 21

5 MECHANICAL CHARACTERISTICS 25

6 RELIABILITY 28

7 INTERNATIONAL STANDARDS 29

7-1 SAFETY 29

7-2 EMC 29

8 PACKING 30

8-1 DESIGNATION OF LOT MARK 30

8-2 PACKING FORM 30

9 PRECAUTIONS 31

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Revision No DescriptionDate Page

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LM171WX3

Liquid Crystal Display

Product Specification

RECORD OF REVISIONS

Ver 0.1
Ver 0.2
Ver 1.0

Ver 1.1

Ver 1.2

Mar. 13, 2008
Mar. 14, 2008
Apr. 15, 2008

Apr. 24, 2008

Sept. 11, 2008

4

27

6

3

6

15
26
27

Preliminary Specifications
Added the Color Gamut
Final Specifications
Updated the mechanical drawing : Rear view
Corrected the typo : The Power Supply Input Current Max.

Corrected the page number of contents
Corrected the typo : Permissive Power Input Ripple
Updated the Backlight connector view and notes
Updated the mechanical drawing : Front view
Updated the mechanical drawing : Rear view

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LM171WX3

Liquid Crystal Display

Product Specification

1. General Description

LM171WX3-TLC2 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. It has a 17.1 inch diagonally measured active
display area with WXGA+ resolution (1440 vertical by 900 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 LM171WX3-TLC2 characteristics provide an excellent flat panel display for office
automation products such as monitors.

RGB,DLK,DE
Hsync,Vsync
(LVDS 2Port)

V

+5V

LCD

CN1

(30pin)

Timing Controller

(LVDS Rx integrated)

RGB

Power Circuit

Block

CN2 (3pin)

CN3 (3pin)

General Features

Figure 1. Block diagram

Active screen size 17.1 inch (43.3019cm) diagonal

Outline Dimension 389.2(H)x254.5(V)x11.5(D) mm (Typ.)

Pixel Pitch 0.255mm x 0.255mm

Source Driver Circuit

1 1440

TFT - LCD Panel

(1440 Ý RGB Ý 900 pixels)

Back light Assembly (2CCFL)

Pixel Format 1440 horiz. by 900 vert. Pixels. RGB stripe arrangement

Display Colors 16.7M colors

Luminance, white 250 cd/m2(Typ. Center 1 point)

Power Consumption 13.2 Watts(Typ.) (2.88 Watt@VLCD, 10.32 Watt@250cd/[Lamp=8mA])

Weight 1360g (Typ.)

Display operating mode Transmissive mode, normally white

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

Color Gamut 60% CIE1931, 65% CIE 1976

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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

LM171WX3

Parameter NotesSymbol

Units

Min. Max.

Values

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

V

CC

T

OP

T

ST

H

OP

H

ST

இ0.3

இ20

10
10

அ5.5

0

அ50
அ60
அ90
அ90

V

dc

୅
୅

%RH
%RH

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.

ڔڋڀ

ڑڋ

ڑڋڀ

ڏڋ

ڐڋ

ڏڋڀ

ڌڋڀ

ڪۋۀۍڼۏۄۊۉ

ڣېۈۄڿۄۏ۔ٻڶڃڀڄڭڣڸ

ڲۀۏٻڝېۇڽ
گۀۈۋۀۍڼۏېۍۀٻڶڞڸ

ڎڋ

ڍڋ

ڌڋ

ڋ

At 25୅

1
1
1
1

ڮۏۊۍڼۂۀ

ڌڋ ڍڋ ڎڋ ڏڋ ڐڋ ڑڋ ڒڋ ړڋڋڈڍڋ

ڟۍ۔ٻڝېۇڽٻگۀۈۋۀۍڼۏېۍۀٻڶڞڸ

Figure 2. Temperature and relative humidity

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LM171WX3

Liquid Crystal Display

Product Specification

3. Electrical specifications

3-1. Electrical characteristics

The LM171WX3-TLC2 requires two power inputs. One is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. Another which powers the CCFL, is typically generated by an inverter.

The inverter is an external unit to the LCD.

Table 2. Electrical Characteristics

Parameter

MODULE :

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

Rush Current

LAMP for each CCFL:

Operating Voltage

Operating Current

Established Starting Voltage

at 25 ¶C
at 0 ¶C

Operating Frequency
Discharge Stabilization Time
Power Consumption
Life Time

Symbol

V

CC

V

RF

I

CC

Zm

TYP

Pc
Pc MAX

I

RUSH

V

BL

I

BL

V

S

f

BL

T

S

P

BL

Values

Min. Typ. Max.

4.5

-

-

90

-

-

-

615

(@9.0mA)

2.5

-

-

40

-

-

40,000

5.0

­575
100

2.88

3.38

-

645

(@8.0mA)

8.0

-

-

60

-

10.32

-

5.5

200

878
110

3.3

4.39
3

815

(@2.5mA)

9.0

1000
1250

70

3

11.35

-

Units Notes

V

mV

mA

12

1

ohm

Watts

1

Watts

2

3

V

mA

A

RMS

RMS

4

V

RMS

V

RMS

kHz

Minutes

Watts

Hrs

5
6
7
8

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 your instrument.

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LM171WX3

Liquid Crystal Display

Product Specification

Note. Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to conducting tape,

TFT-LCD Module have a low luminance and the inverter has abnormal action because leakage current
occurs between lamp wire and conducting tape.

1. The specified current and power consumption are under the V
=60Hz condition. Mosaic and max power pattern shown in the [ Figure 3 ] is displayed.

2. The duration of rush current is about 5ms. And V

rise time is 500us r 20%.

CC

3. Operating voltage is measured under 25ఁ.The variance of the voltage is ᇹ10%.

4. The voltage above Vsshould be applied to the lamps for more than 1 second

for start-up.(when no load condition.)
( Inverter open lamp voltage must be more than lamp starting voltage.)
Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.

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 interference with horizontal synchronous frequency and as a result this
may cause beat on the display.Therefore lamp frequency shall be as away as 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%.

is the time required for the brightness of the center of the lamp to be not less than 95%.

T

s

The used lamp current is the lamp typical current.

7. The lamp power consumption shown above does not include loss of external inverter under 25ఁ.
The used lamp current is the lamp typical current.

8. The life time is determined as the time at which brightness of lamp is 50% compared to that of initial
value at the typical lamp current on condition of continuous operating at 25 ᇹ2ఁ.

9. Requirements for a system inverter design, which is intended to have a better display performance,

a better power efficiency and a more reliable lamp.
It shall help increase the lamp lifetime and reduce its leakage current.

a. The unbalance rate of the inverter waveform should be 10% below;
b. The distortion rate of the waveform should be within ˲2 ·10%;
c. The ideal sine wave form shall be symmetric in positive and negative polarities.
d. It should be measured with lamp currents of high voltage side.

=5.0V, 25¶C, fV(frame frequency)

CC

I p

I -p

* Asymmetry rate = | I

* Distortion rate = I

–I –p| / I

p

(or I –p) / I

p

rms

rms

10. Inverter open voltage must be more than lamp starting voltage.

11. The inverter which is combined with this LCM, is highly recommended to connect coupling(ballast)

condenser at the high voltage output side. When you use the inverter which has not coupling(ballast)
condenser, it may cause abnormal lamp lighting because of biased mercury as time goes.

12. Permissive power ripple should be measured under VCC=5.0V, 25¶C, fV(frame frequency)=MAX

condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under
20Mhz. See the next page.

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Product Specification

• Permissive Power input ripple (VCC=5.0V, 25¶C fV (frame frequency)=MAX condition)

LM171WX3

Liquid Crystal Display

White pattern

• Power consumption (VCC=5.0V, 25¶C, fV(frame frequency= 60Hz condition)

Typical power Pattern

[ Figure 3 ] Mosaic pattern & Black Pattern for power consumption measurement

Black pattern

Max power Pattern

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LM171WX3

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Product Specification

3-2. Interface Connections

Interface chip must be used LVDS, part No. SN75LVDS83 (Tx, Texas Instrument) or compatible.
This LCD employs a interface connection, a 30 pin connector is used for the module electronics interface.
Two 3pin connectors are used for the integral backlight system. The electronics interface connector is
a model IS100-L30O-C23 manufactured by UJU .
And mating connector is FI-X30H and FI-X30HL or it’s compatible manufactured by JAE.
The pin configuration for the connector is shown in the table 3 and the signal mapping with LVDS transmitter
is shown in the table 4.

Table 3. Module connector pin configuration

Pin No Symbol Description

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

RXO0­RXO0+
RXO1­RXO1+
RXO2­RXO2+
GND
RXOC­RXOC+
RXO3­RXO3+
RXE0­RXE0+
GND
RXE1­RXE1+
GND
RXE2­RXE2+
RXEC­RXEC+
RXE3­RXE3+
GND
NC
NC
PWM_out
V

LCD

VLCD
VLCD

Minus signal of 1st channel 0 (LVDS)
Plus signal of 1st channel 0 (LVDS)
Minus signal of 1'st channel 1 (LVDS)
Plus signal of 1'st channel 1 (LVDS)
Minus signal of 1'st channel 2 (LVDS)
Plus signal of 1'st channel 2 (LVDS)
Ground
Minus signal of 1'st clock channel (LVDS)
Plus signal of 1'st clock channel (LVDS)
Minus signal of 1'st channel 3 (LVDS)
Plus signal of 1'st channel 3 (LVDS)
Minus signal of 2'nd channel 0 (LVDS)
Plus signal of 2'nd channel 0 (LVDS)
Ground
Minus signal of 2'nd channel 1 (LVDS)
Plus signal of 2'nd channel 1 (LVDS)
Ground
Minus signal of 2'nd channel 2 (LVDS)
Plus signal of 2'nd channel 2 (LVDS)
Minus signal of 2'nd clock channel (LVDS)
Plus signal of 2'nd clock channel (LVDS)
Minus signal of 2'nd channel 3 (LVDS)
Plus signal of 2'nd channel 3 (LVDS)
Ground
No Connection
No Connection
Reference signal for inverter control
Power Supply +5.0V
Power Supply +5.0V
Power Supply +5.0V

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LM171WX3

Liquid Crystal Display

Product Specification

#
1

#1 #30

1’st signal pairs

2’nd signal pairs

#1 #30

[ Figure 4 ] Connector diagram

CN1

PWM_out

Rear view of LCM

#30

Power(5V)

Notes: 1. All GND(ground) pins should be connected together and should also be

connected to the LCD’s metal frame.

2. All V

(power input) pins should be connected together.

CC

3. All NC pins should be separated from other signal or power.

4. PWM_OUT signal controls the burst frequency of a inverter.

This signal is synchronized with vertical frequency,

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