LG Display LM190WX1-TLH1 Specification

SPECIFICATION

( ) Preliminary Specification
(◆) Final Specification

LM190WX1

Liquid Crystal Display

Product Specification

FOR

APPROVAL

19.0” WXGA+ TFT LCDTitle

BUYER

MODEL

SIGNATURE DATE

/

/

/

Lenovo

SUPPLIER LG Display CO., Ltd.

*MODEL LM190WX1

SUFFIX TLH1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

S.G. Hong / G.Manager

REVIEWED BY

S.J. So / Manager [C]

S.Y. An / Manager [M]

H.S. Lee / Manager [P]

PREPARED BY

J.S. Choi/ Engineer

DATE

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

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Product Engineering Dept.

LG Display Co., Ltd

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Product Specification

Contents

LM190WX1

Liquid Crystal Display

No

1)

2)

4)

5)

6)

7)

8)

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

ITEM

Page

1
2
3
41
52
63
6

9
12LVDS INPUT CHARACTERISTICS3)
15

16
17
18
19
204

MECHANICAL CHARACTERISTICS
RELIABILITY
INTERNATIONAL STANDARDS

1)

2)

1)

2)

SAFETY
EMC
PACKING
DESIGNATION OF LOT MARK
PACKING FORM

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245
276
287
28
28
298
29
29
30PRECAUTIONS9
30MOUNTING PRECAUTIONS1)
30OPERATING PRECAUTIONS2)
31ELECTROSTATIC DISCHARGE CONTROL3)
31PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)
31STROAGE5)
31HANDLING PRECAUTIONS FOR PROTECTION FILM6)

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Product Specification

Record of Revisions

Revision No DescriptionDate Page

LM190WX1

Liquid Crystal Display

Ver0.0
Ver0.1

Ver1.0

May. 23, 2008

Aug. 07, 2008

Aug. 28, 2008

4, 24

12
13
20
26

First Draft, Preliminary Specifications.
Update the LCM Weight. (Actualization: Typ.1720→1750

Max.1800→1840)
Delete the F
Delete the Spread Spectrum figure.
Change the Color Coordinates (Gy: 611 → 608)
Change the Cover Shield. (Remove the C/S Hole.)

Final Specifications.

DEV

and F

Specification.

MOD

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LM190WX1

Liquid Crystal Display

Product Specification

1. General Description

LM190WX1-TLH1 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 19.0 inch diagonally measured active
display area with WXGA+ resolution (900 vertical by 1440 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 colorswith 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 LM190WX1-TLH1 characteristics provide an excellent flat panel display foroffice
automation products such as monitors.

FIG. 1 Block Diagram

LVDS

CN1

(30pin)

pair #1

LVDS

pair #2

+5V

VLCD

Timing Controller

＆LVDS 1 Chip

Power Circuit

Block

VLamp
VLamp

RGB

CN2 (2pin)
CN3 (2pin)

Source Driver Circuit

S1 S1440

G1

TFT -LCD Panel

(1440 × RGB × 900 pixels)

G900

Back light Assembly (2CCFL)

General Features

Active screen size 18.95 inches (481.33mm) diagonal (Aspect ratio 16:10)
Outline Dimension 428.0(H) x 278.0(V) x 16.5(D) mm(Typ.)
Pixel Pitch 0.2835(H)mm x 0.2835(V)mm
Pixel Format 1440 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

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Weight 1,750g(Typ.)
Display operating mode Transmissive mode, normally White
Surface treatments Hard coating (3H), Anti-glare treatment of the front polarizer

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Total 14.4 Watt(Typ.), (3.6 W@V

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, 10.8 W@[Lamp=7.5mA])

LCD

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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

LM190WX1

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.

FIG. 2 Temperature and Relative Humidity

Symbol

LCD

OP

ST

OP

ST

60

Values

MaxMin

+6.0-0.3V

90%

60%

Units

DC

°C500T
°C60-20T

%RH9010H
%RH9010H

At 25℃V

1

Wet Bulb
Temperature [C]

20

10

0

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

30

40

50

40%

10%

Humidity

[(%)RH]

Storage

Operation

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LM190WX1

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 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 theVLCD=5.0V, 25 ± 2°C, fV=60Hz
condition whereas mosaic pattern(8 x 6) is displayed andfVis 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=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 2ms and rising timeof power Input is 500us ± 20%.

FIG.3 Pattern for Electrical Characteristics

LCD

LCD

LCD-MOSAIC

I

LCD-BLACK

LCD

RUSH

Values

MaxTypMin

5.55.04.5V

V

DC

NotesUnit

3V0.2--V
1mA828720-I
2mA955830­1Watt4.143.6-P
4A3.0--I

Power Consumption Measurement

White : 255Gray
Black : 0Gray

Power Input Ripple

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Mosaic Pattern(8 x 6)

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Full Black Pattern

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Product Specification

Table 3. Electrical Characteristics

LM190WX1

Liquid Crystal Display

Parameter Symbol

LAMP :

Operating Voltage
Operating Current

at 25 °C

at 0 °C
Operating Frequency
Discharge Stabilization Time
Power Consumption

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 orbrightness, 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 youinstrument.

V

BL

BL

BL

S

BL

Values

853(3.0m)720(7.5mA)705(8.0mA)

1250
1550

MaxTypMin

RMS

8.07.53.0I

V
V

RMS

RMS
RMS

NotesUnit

1, 2V

1mA

1, 3VsEstablished Starting Voltage

4kHz80-40f

1, 5Min3--T

6Watt11.8810.8P

1, 7Hrs-50,000Life Time

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

TFT-LCD Module has a low luminance and the inverter has abnormal action.
Because leakage current is occurred between lamp wire and conducting tape.

1. Specified values are for a single lamp.

2. Operating voltage is measured at 25 ± 2°C. The variance of the voltage is ± 10%.

3. The voltage above VSshould be applied to the lamps for more than 1 second for start-up.
(Inverter open voltage must be more than lamp startingvoltage.)

Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.

4. Lamp frequency may produce interface with horizontal synchronous frequency and as a result
this may cause beat on the display. Therefore lamp frequency shall be as away possible from
the horizontal synchronous frequency and from its harmonics in order to prevent interference.

5. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.

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

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

The used lamp current is the lamp typical current. (PBL= VBLx IBLx N

7. The life is determined as the time at which brightness of thelamp is 50% compared to that

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

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)

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Liquid Crystal Display

Product Specification

Note :

8. The output of the inverter must have symmetrical(negative andpositive) voltage

waveform and symmetrical current waveform (Unsymmetricalratio is less than 10%).
Please do not use the inverter which has unsymmetrical voltage and unsymmetrical
current and spike wave. Requirements for a system inverter design, which is intended to
have a better display performance, a better power efficiency and a more reliable lamp,
are following.It shall help increase the lamp lifetime and reduce leakage current.

a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2 ±10%.

* Inverter output waveform had better be more similar to ideal sine wave.

* Asymmetry rate:

I p

| I p– I –p| / I

rms

x 100%

LM190WX1

I -p

9. 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.

10.In case of edgy type back light with over 4 parallel lamps, input current and voltage
wave form should be synchronized

* Distortion rate

I p(or I –p) / I

rms

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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

LM190WX1

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

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27
28
29
30

Symbol Description

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

PWM_OUT

VLCD
VLCD
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
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 #30

1’st signal pairs

LM190WX1

Liquid Crystal Display

Product Specification

187024-30091 (P-TWO)

2’nd signal pairs

Power(+5V)

PWM_OUT

#1 #30

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.

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 itsduty 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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