LG Display LM240WU8-SLD2 Specification

Product Specification

SPECIFICATION

( ) Preliminary Specification
( ◆ ) Final Specification

Title 24.0” WUXGA TFT LCD

LM240WU8

Liquid Crystal Display

FOR

APPROVAL

BUYER NEC DS

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LM240WU8

SUFFIX SLD2

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

B. C. KIM / G.Manager

REVIEWED BY

S. H . Kim / Manager [C]

Y. H. Hwang / Manager [M]

M. S. Kang / Manager [P]

S. H. Han / Manager [O]

PREPARED BY

T. K. Kim / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0 Oct. 29. 2012

IT/Mobile Development Division 1

LG Display Co., Ltd

1 / 32

Product Specification

Contents

LM240WU8

Liquid Crystal Display

No ITEM

COVER 1

CONTENTS 2

RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION 4

2 ABSOLUTE MAXIMUM RATINGS 5

3 ELECTRICAL SPECIFICATIONS 6

1) ELECTRICAL CHARACTERISTICS 6

2) INTERFACE CONNECTIONS 8

3) LVDS characteristics 11

4) SIGNAL TIMING SPECIFICATIONS 14

5) SIGNAL TIMING WAVEFORMS 15

6) COLOR INPUT DATA REFERNECE 16

7) POWER SEQUENCE 17

8) POWER DIP CONDITION 18

4 OPTICAL SPECIFICATIONS 19

Page

5 MECHANICAL CHARACTERISTICS 25

6 RELIABILITY 28

7 INTERNATIONAL STANDARDS 29

1) SAFETY

2) EMC

3) ENVIRONMENT

8 PACKING 30

1) DESIGNATION OF LOT MARK 30

2) PACKING FORM 30

9 PRECAUTIONS 31

1) MOUNTING PRECAUTIONS 31

2) OPERATING PRECAUTIONS 31

3) ELECTROSTATIC DISCHARGE CONTROL 32

4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 32

5) STROAGE 32

6) HANDLING PRECAUTIONS FOR PROTECTION FILM 32

29

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Product Specification

Record of revisions

LM240WU8

Liquid Crystal Display

Revision

No.

0.0 Jul. 09. 2012 - Preliminary Specifications

0.1 Sep. 12. 2012 7 Update LED Bar ELECTRICAL CHARACTERISTICS

0.2 Oct, 24. 2012 5 Add LCM Surface Temperature SPEC

1.0 Oct. 29. 2012 -

Revision Date Page Description

19 Update color coordinates

24 Update Gray scale specification

28 Update altitude ( add operationg 5000m )

29 Update safety

14 Update Signal timing specifications

26,27 Update drawings

Final specifications

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LM240WU8

Liquid Crystal Display

Product Specification

1. General description

LM240WU8 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 black mode. It has a 24 inch diagonally measured active display area with
WUXGA resolution (1200 vertical by 1920 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 sub­pixels, the LM240WU8’s characteristics provide an excellent flat panel display for office automation products
such as monitors.

FIG. 1 Block diagram

LVDS

pair #1

LVDS

CN1

(30pin)

pair #2

+12V

VLCD

Power circuit

Timing

controller

block

V

Led (3ch)

RGB

Source driver circuit

S1

G1

TFT-LCD Panel

(1920×RGB×1200 pixels)

G1200

Backlight assembly (White LED)

S1920

General features

Active screen size 24.1 inches(61.13cm) diagonal (Aspect ratio 16:10)

Outline Dimension 546.4(H) x 352.0(V) x 11.7(D) mm (Typ.)

Pixel Pitch 0.270 mm x 0.270 mm

Pixel Format 1920 hor. By 1200 Vertical Pixels RGB stripes arrangement

Interface LVDS 2Port

Color depth 16.7M colors (6bit+A-FRC)

Luminance, white 350 cd/m2 ( Center 1Point, typ)

Viewing Angle (CR>10) R/L 178(Typ.), U/D 178(Typ.)

Power Consumption

Total 18.66 Watt (Typ.) ( 3.96 Watt @VLCD, 14.7 Watt @Vled)

Weight 2620g(Typ.)

Display operating mode Transmissive mode, normally Black

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

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LM240WU8

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

Parameter Symbol

Values

Min Max

Power Supply Input Voltage V

Operating Temperature T

Storage Temperature T

Operating Ambient Humidity H

Storage Humidity

LCM Surface Temperature

(Operation)

T

Surface

LCD

OP

ST

OP

ST

-0.3 +14.0 Vdc at 25 ± 2°C

0 50 °C

-20 60 °C

10 90 %RH

0 65

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.

2. Maximum Storage Humidity is up to 40℃, 70% RH only for 4 corner light leakage Mura.

3. Storage condition is guaranteed under packing condition.

4. LCM Surface Temperature should be Min. 0℃ and Max. 65℃ under the VLCD=12V,
fV=60Hz, 25℃ ambient Temperature no humidity control and LED string current is typical value.

FIG. 2 Temperature and relative humidity

Units Notes

1, 2 ,3

%RH9010H

℃

1,4

60

50

Wet Bulb
Temperature [℃]

40

30

20

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [℃]

Ver. 1.0 Oct. 29. 2012

90%

60%

40%

10%

Storage

Operation

Humidity

[(%)RH]

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LM240WU8

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 LED Backlight, is typically
generated by an LED Driver. The LED Driver is an external unit to the LCDs.

Table 2-1. Electrical characteristics

Parameter Symbol

Values

Unit Notes

Min Typ Max

MODULE :

Power Supply Input Voltage V

Permissive Power Input Ripple V

I

Power Supply Input Current

LCD-MOSAIC

I

LCD-WHITE

Power Consumption P

Inrush current I

LCD

LCD

LCD

RUSH

11.4 12.0 12.6 Vdc

- - 0.4 V 3

280 330 378 Ma 1

370 436 502 mA 2

- 3.96 4.56 Watt 1

- - 3.0 A 4

Note :

1. The specified current and power consumption are

under the VLCD=12.0V, 25 ± 2°C,fV=60Hz condition
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=12.0V, 25°C, fV(frame frequency)=Max

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

power consumption measurement

White : 255Gray
Black : 0Gray

Mosaic Pattern(8 x 6)

Ver. 1.0 Oct. 29. 2012

power input ripple

Full White Pattern

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Product Specification

Table 2-2 . LED Bar ELECTRICAL CHARACTERISTICS

LM240WU8

Liquid Crystal Display

Parameter Symbol Condition

Unit Notes

Min. Typ. Max.

LED String Current Is - 120 125 mA 1,2,5

LED String Voltage Vs 38.4 41 43.6 V 1,5

Power Consumption PBar - 14.7 15.7 Watt 1,2,4

LED Life Time LED_LT 30,000 - - Hrs 3

Notes) The LED Bar consists of 39 LED packages, 3 strings (parallel) x 13 packages (serial)

LED driver design guide

1) 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
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.

2) LGD recommend that Dimming Control Signal ( PWM Signal) is synchronized with Frame Frequency

for Wavy Noise Free.

Values

Notes :

1. The specified values are for a single LED bar.

2. The specified current is defined as the input current for a single LED string with 100% duty
cycle.

3. The LED life time is defined as the time when brightness of LED packages become 50% or less

than the initial value under the conditions at Ta = 25 ± 2°C and LED string current is typical

value.

4. The power consumption shown above does not include loss of external driver.
The typical power consumption is calculated as PBar = Vs(Typ.) x Is(Typ.) x No. of strings.
The maximum power consumption is calculated as PBar = Vs(Max.) x Is(Typ.) x No. of strings.

5. LED operating conditions must not exceed Max. ratings.

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Liquid Crystal Display

Product Specification

3-2. Interface connections

- LCD Connector(CN1) : GT103-30S-H23-D (LSM), KDF71G-30S-1H(Hirose) or Equivalent

- Mating Connector : FI-X30C2L (Manufactured by JAE) or Equivalent

Table 3. Module connector(CN1) pin configuration

LM240WU8

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+
RXE0­RXE0+
GND
RXE1­RXE1+
GND
RXE2­RXE2+
RXEC­RXEC+
RXE3­RXE3+
GND
NC
NC
PWM
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.)
PWM_OUT for Wavy Noise
Power Supply (12.0V)
Power Supply (12.0V)
Power Supply (12.0V)

First Pixel data

Second Pixel data

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FIG. 4 Connector diagram

#1 #30

1’st signal pairs

LM240WU8

Liquid Crystal Display

Product Specification

GT103-30S-H23-D (LSM)

2’nd signal pairs

Power(+12V)

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

(power input) pins should be connected together.

LCD

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

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LM240WU8

Liquid Crystal Display

Product Specification

Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN2)

The LED interface connector is a model SM06B-SHJH(HF), wire-locking type manufactured by JST.

The mating connector is a SHJP-06V-S(HF) or SHJP-06V-A-K(HF) and Equivalent.

The pin configuration for the connector is shown in the table below.

Pin Symbol Description Notes

1 FB1 Channel1 Current Feedback

2 NC No Connection

3 VLED LED Power Supply

4 VLED LED Power Supply

5 FB2 Channel2 Current Feedback

6 FB3 Channel3 Current Feedback

FIG. 5 Backlight connector diagram

#1

Rear view of LCM

#6

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