LG Display LM240WU4-SLB3 Specification

( ) Preliminary Specification
(●●●● ) Final Specification

LM240WU4

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

24.0” WUXGA TFT LCDTitle

BUYER

MODEL

APPROVED BY

/

/

/

General

SIGNATURE

DATE

LG Display Co., Ltd.SUPPLIER

APPROVED BY

J.D KIM / G.Manager

REVIEWED BY

W.Y SUN / Manager

PREPARED BY

T.I OH / Engineer

LM240WU4*MODEL

SLB3SUFFIX

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0 Jan. 05. 2011

Products Engineering Dept.

LG Display Co., Ltd.

1 / 33

Product Specification

Contents

LM240WU4

Liquid Crystal Display

PageITEMNo

1

2

3

4

5

3-1

3-2

3-3

3-4

3-5

3-6

3-7

COVER

CONTENTS

RECORD OF REVISIONS

GENERAL DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS

ELECTRICAL CHARACTREISTICS

INTERFACE CONNECTIONS

SIGNAL TIMING SPECIFICATIONS

SIGNAL TIMING WAVEFORMS

COLOR INPUT DATA REFERNECE

POWER SEQUENCE

POWER SEQUENCE FOR INVERTER

OPTICAL SFECIFICATIONS

MECHANICAL CHARACTERISTICS

1

2

3

4

5

6

6

8

13

14

15

16

17

18

24

6

RELIABLITY

INTERNATIONAL STANDARDS7

SAFETY7-1

EMC7-2

ENVIRONMENT7-3

PACKING8

DESIGNATION OF LOT MARK8-1

PACKING FORM8-2

PALLET FORM8-3

PRECAUTIONS9

Ver. 1.0 Jan. 05. 2011

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2 / 33

Product Specification

RECORD OF REVISIONS

LM240WU4

Liquid Crystal Display

Revision

No

DescriptionPageRevision Date

First Draft-Jan. 05. 20111.0

Ver. 1.0 Jan. 05. 2011

3 / 33

LM240WU4

Liquid Crystal Display

Product Specification

1. General Description

LM240WU4 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 black mode. It has a 24inch diagonally measured
acti v e di s p la y ar e a w it h WUX G A re s o l ut io n (1 2 0 0 vertical by 19 2 0 horizo nt a l 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 10-bit gray scale signal for each dot,
thus, presenting a palette of more than 1.07B colors.
It has been designed to apply the 10Bit 2 port LVDS interface.
It is i nt e n d ed t o s u pp o rt d isp la y s w h er e hi g h b r ig htn es s , s u pe r wi d e v i ew i ng a ng l e,
high color saturation, and high color are important.

LVDS

2port

CN1

(51pin)

+12.0V

+12.0V

+24.0V

GND

CN2

(14Pin)

General Features

RGB

Timing

Controller

Power Circuit

Block

Inverter

Block

24.1 inches(61.13cm) diagonalActive Screen Size

546.4(H) x 352.0(V) x 40.3(D) mm (Typ.)Outline Dimension

0.270 mm x 0.270 mmPixel Pitch

Gate Driver Circuit

2pin x 7CNs (High)

Source Driver Circuit

S1 S1920

G1

TFT - LCD Panel

(1920 × RGB × 1200 pixels)

G1200

Back light Assembly

(U-Shape 7CCFL)

1920 horizon. By 1200 vertical. Pixels RGB stripes arrangementPixel Format

8-bit + A-FRC, 1,073,741,824 colorsColor Depth

400 cd/m

2

( Center 1 points)Luminance, White

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

Total 77.54 Watt (Typ.) ( 5.54 Watt @VLCD, 72.0 Watt@V

2740 g (typ.) Weight

Transmissive mode, normally blackDisplay Operating Mode

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

Ver. 1.0 Jan. 05. 2011

DDB

)Power Consumption

4 / 33

LM240WU4

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 Notes

Power Input Voltage

Operating Temperature

Storage Temperature

Operating Ambient Humidity

Storage Humidity

Symbol

Values

MaxMin

500TOP

60-20TST

Units

Vdc148VLCD

°C

°C

%RH9010HOP

%RH9010HST

at 25 ± 2°C

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

90%

60

60%

Wet Bulb
Temperature [C]

10

0

20

50

40

40%

30

Humidity [(%)RH]

10%

Storage

Operation

1, 2

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [C]

Ver. 1.0 Jan. 05. 2011

5 / 33

LM240WU4

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, is typically generated by an inverter. The inverter is an
external unit to the LCD.

Table 2-1. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

ILCDPower Supply Input Current

Power Consumption

Values

MaxTypMin

Vdc12.612.011.4VLCDPower Supply Input Voltage

Note :

1. Permissive power ripple should be measured under V

=12.0V, 25 ± 2°C,fV=60Hz condition and At that

LCD

time, we recommend the bandwidth configuration of oscilloscope is to be under 20Mhz.

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

=12.0V, 25 ± 2°C,fV=60Hz condition

LCD

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

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

4. The duration of rush current is about 2ms and rising time of power Input is 1ms(min.).

NotesUnit

1mVp-p400VRFPermissive Power Input Ripple

2mA531462-

3mA709617-

2Watt6.385.54-PLCD TYP

2Watt8.517.40-PLCD MAX

4A3.0--IRUSHRush current

White Pattern

< Permissive Power Input Ripple (V

=12.0V, 25 ± 2°C,fV=60Hz) >

LCD

Ver. 1.0 Jan. 05. 2011

Black Pattern

6 / 33

Product Specification

LM240WU4

Liquid Crystal Display

Typical current pattern
(White : 255Gray, Black : 0Gray)

Mosaic Pattern(8 x 6)

< Power consumption (V

=12.0V, 25 ± 2°C,fV=60Hz) >

LCD

Table 2-2. INVERTER ELECTRICAL CHARACTERISTICS

ConditionSymbolParameter

Inverter :

Input Voltage

Input Current

Input Power

V

DDB

DDB

VBR= 3.3VI

B

VBR= 3.3VP

Lamp ON = High

B/L on/off control

V

ON/OFF

Lamp OFF =Low

Maximum current pattern

White Pattern

Values

Max.Typ.Min.

Unit

V26.424.021.6

A3.53.0-

Watt84.072.0-

V5.0-2.5

V0.8--0.3

Notes

1

2

2

Brightness Adj

PWM Frequency

Pulse Duty Level

(PWM)

BR

F

b

Ext. PWMV

High Level

V

BR

Low Level

On Duty%10030

3Hz180

V5.0-2.0

V0.8-0

LAMP :

Life time

4Hrs40,000

Notes :

1. The input voltage ripple is limited below 400mVp-p.

2. The specified current and power consumption are under the typical supply Input voltage, 24V.

3. LGD recommend that PWM Freq. Is synchronized with three times harmonic of Vsync signal of system.

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

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

5. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately

30min in a dark environment at 25 °C± 2°C.

6. In case of the difference in measured values due to the difference
of measuring device was found, correlated value will be used after discussions between both parties.

Ver. 1.0 Jan. 05. 2011

7 / 33

Product Specification

3-2. Interface Connections

3-2-1. LCD Module

- LCD Connector(CN1). : FI-RE51S-HF (Manufactured by JAE) or equivalent

- Mating Connector: FI-RE51HL (Manufactured by JAE) or equivalent

Table 3 MODULE CONNECTOR(CN1) PIN CONFIGURATION

LM240WU4

Liquid Crystal Display

10

15

20

26

DescriptionSymbolNo

1
2

3

4
5
6
7
8
9

GND

NC

ODC ON

NC
NC
NC
NC

GND

GND
GND11

RO0N12

RO0P13

RO1N14

RO1P

RO2N16

RO2P17

GND18
ROCLKN19
ROCLKP

GND21

RO3N22

RO3P23

RO4N24

RO4P25

GND

Ground
Reserved

ODC ON/OFF Control

(H:ODC ON, L:ODC OFF, Not Fixed)

(I2C DATA Interface)
(I2C CLK Interface)
Reserved
Reserved
Ground

NCNC
Ground
Ground

FIRST CHANNEL 0­FIRST CHANNEL 0+
FIRST CHANNEL 1­FIRST CHANNEL 1+
FIRST CHANNEL 2­FIRST CHANNEL 2+

Ground
FIRST CLOCK CHANNEL C­FIRST CLOCK CHANNEL C+

Ground
FIRST CHANNEL 3­FIRST CHANNEL 3+
FIRST CHANNEL 4­FIRST CHANNEL 4+

Ground

No

27
28

29

30
31
32
33
34
35
36

37
38

39
40
41
42
43

44
45

46
47
48

49
50
51

Symbol

GND

RE0N

RE0P

RE1N

RE1P

RE2N

RE2P

GND
RECLKN
RECLKP

GND

RE3N

RE3P

RE4N

RE4P

GND

GND

GND

GND

NC
NC

VLCD
VLCD
VLCD
VLCD

-

-

Ground

SECOND CHANNEL 0-

SECOND CHANNEL 0+

SECOND CHANNEL 1­SECOND CHANNEL 1+
SECOND CHANNEL 2­SECOND CHANNEL 2+

Ground

SECOND CLOCK CHANNEL C­SECOND CLOCK CHANNEL C+

Ground
SECOND CHANNEL 3­SECOND CHANNEL 3+
SECOND CHANNEL 4­SECOND CHANNEL 4+

Ground
Ground

Ground
Ground

NC
NC
Power Supply +12.0V

Power Supply +12.0V
Power Supply +12.0V
Power Supply +12.0V

Description

-

Note : 1. All GND(ground) pins should be connected together and should also be connected to the LCD’s

metal frame.

2. All VLCD (power input) pins should be connected together.

3. Input Level of LVDS signal is based on the EIA 664 Standard.

User Connector Diagram

#1 #51

#1 #51

Rear view of LCM

Ver. 1.0 Jan. 05. 2011

8 / 33

Product Specification

Table 4. REQUIRED SIGNAL ASSIGNMENT FOR LVDS TRANSMITTER

LM240WU4

Liquid Crystal Display

Host System

30 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6
RED7
RED8

RED9
GREEN0
GREEN1
GREEN2
GREEN3
GREEN4
GREEN5
GREEN6
GREEN7
GREEN8
GREEN9

BLUE0
BLUE1
BLUE2
BLUE3
BLUE4
BLUE5
BLUE6
BLUE7
BLUE8
BLUE9

Hsync
Vsync

Data Enable

CLOCK

THC63LVD103

or Compatible

33
34
35
36
37
38
59
61
4
5
40
41
42
44
45
46
62
63
6
8
48
49
50
52
53
54
64
1
9
11
55
57
58
12

TA-

TA+

TB-

TB+

TC-

TC+

TCLK-

TCLK+

TD-

TD+

TE-

TE+

FI-RE51S-HF

31

30

29

28

25

24

23

22

21

20

19

18

12

13

14

15

16

17

19

20

22

23

24

25

100Ω

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

RO4N

RO4P

Note : 1. The LCD module uses a 100 Ohm[Ω] resistor between positive and negative lines of each receiver

input.

2. Refer to LVDS Transmitter Data Sheet for detail descriptions. (THC63LVD103 or Compatible)

3. ‘9’ means MSB and ‘0’ means LSB at R,G,B pixel data.

Ver. 1.0 Jan. 05. 2011

9 / 33

LVDS Input characteristics

1. DC Specification

LM240WU4

Liquid Crystal Display

Product Specification

LVDS Common mode Voltage

LVDS Input Voltage Range

2. AC Specification

LVDS Clock

LVDS Data

LVDS Clock to Data Skew Margin

LVDS Clock to Clock Skew Margin
(Even to Odd)

Maximum deviation
of input clock frequency during SSC

Maximum modulation frequency
of input clock during SSC

NotesUnitMaxMinSymbolDescription

-mV600100|VID|LVDS Differential Voltage

CM

IN

T

clk

SKEW (Fclk

t

SKEW

t

= 1/T

clk

)

-V1.51.0V

-V1.80.7V

NotesUnitMaxMinSymbolDescription

SKEW

SKEW_EO

DEV

MOD

X 0.25t

clk

- 1/7 T

X 0.25- 1/7T

clk

+ 1/7t

clk

%± 3-F

KHz200-F

-ps+ 1/7T

-

-

-

Ver. 1.0 Jan. 05. 2011

10 / 33

Freq.

F

max

F

center

F

min

Product Specification

< Clock skew margin between channel >

LM240WU4

Liquid Crystal Display

F

* F

center

DEV

3. Data Format

1

F

MOD

< Spread Spectrum >

Time

< LVDS Data Format >

Ver. 1.0 Jan. 05. 2011

11 / 33

Liquid Crystal Display

Product Specification

3-2-2. Backlight Interface

-Inverter Connector : 20022WS-H14L Top entry type (Manufactured by Yeonho) or Equivalent

- Mating Connector : PHR-14(Manufactured by JST) or Equivalent

Table 4. INVERTER CONNECTOR PIN CONFIGULATION

RemarksDescriptionSymbolPin No

Power Supply +24.0VVBL1

Power Supply +24.0VVBL2

Power Supply +24.0VVBL3

Power Supply +24.0VVBL4

Power Supply +24.0VVBL5

Power GroundGND6

LM240WU4

Power GroundGND7

Power GroundGND9

Power GroundGND10

NCOPEN11

Backlight On/off SignalVON12

NCOPEN14

Notes : 1. GND is connected to the LCD’s metal frame.

Rear view of LCM

PCB

1

…

…

14

Note 1Power GroundGND8

(On :2.0V~5V/Off :0.0~0.8V)

(Max : 3.3V / Min : 30%)Brightness Adjustable VoltageVBR13

20022WS-H14L

(Yeonho)

Ver. 1.0 Jan. 05. 2011

12 / 33

LM240WU4

Liquid Crystal Display

Product Specification

3-3. Signal Timing Specifications

This is signal timing required at the input of the TMDS transmitter. All of the interface signal timing should be
satisfied with the following specifications for it’s proper operation.

Table 5. TIMING TABLE (VESA COORDINATED VIDEO TIMING)

DCLK

Hsync

Vsync

Data

Period

Frequency

Period

Width-Active

Period

Frequency

Width-Active

Horizontal Valid

Horizontal Back Porch

Horizontal Front Porch

Horizontal Blank

SYMBOL

NoteUnitMaxTypMinITEM

ns13.1612.9812.82tCLK

MHz787776fCLK

104410401036tHP

tCLK

161616tWH

tHP123712351233tVP

Hz6159.9558.85fV

666tWV

960960960tHV

444036tHBP

282420tHFP

tHP

tCLK

Pixel frequency

: Typ. 154MHz

tWH+ tHBP+ tHFP848076-

Enable

Vertical Valid

Vertical Back Porch

Vertical Front Porch

Vertical Blank

-

120012001200tVV

272625tVBP

tHP

432tVFP

tWV+ tVBP+ tVFP373533

Note: Hsync period and Hsync width-active should be even number times of tCLK. If the value is odd number

times of tCLK, display control signal can be asynchronous. In order to operate this LCM a Hsync,

Vsyn, and DE(data enable) signals should be used.

1. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rates.

2. Vsync and Hsync should be keep the above specification.

3. Hsync Period, Hsync Width, and Horizontal Back Porch should be any times of of character

number(8).

4. The polarity of Hsync, Vsync is not restricted.

Ver. 1.0 Jan. 05. 2011

13 / 33

3-4. Signal Timing Waveforms

LM240WU4

Liquid Crystal Display

Product Specification

Hsync, Vsync, DE, DATA

t

CLK

Dclk

INVALID

DATA

DE(Data Enable)

Hsync

t

WH

0.5VDD

0.7VDD

0.3VDD

VALID

Data are latched at the falling edge of DCLK

t

HP

INVALID

t

HBP

t

HV

DE(Data Enable)

t

VP

t

WV

Vsync

t

VBP

t

VV

DE(Data Enable)

Ver. 1.0 Jan. 05. 2011

t

t

HFP

VFP

14 / 33

LM240WU4

Liquid Crystal Display

Product Specification

3-5. Color Input Data Reference

The Brightness of each primary color(red,green,blue) is based on the 10-bit gray scale data input for the color;
the higher the binary input, the brighter the color. The table below provides a reference for color versus data
input.

Table 6. COLOR DATA REFERENCE

Input Color Data

Basic
Color

RED

Color

Black

Red (1023)

Green (1023)

Blue (1023)

Cyan

Magenta

Yellow

White

RED (000)

RED (001)

...

RED (1022)

RED (1023)

GREEN (000)

RED

MSB LSB

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 1

...

1 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 1

GREEN

MSB LSB

BLUE

MSB LSB

B9 B8 B7 B6 B5 B4 B3 B2 B1 B0G9 G8 G7 G6 G5 G4 G3 G2 G1 G0R9 R8 R7 R6 R5 R4 R3 R2 R1 R0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

......

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

GREEN (001)

...

GREEN

GREEN
(1022)

GREEN
(1023)

BLUE (000)

BLUE (001)

BLUE

...

BLUE (1022)

BLUE (1023)

Ver. 1.0 Jan. 05. 2011

0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0

......

1 1 1 1 1 1 1 1 1 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

...

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

.........

1 1 1 1 1 1 1 1 1 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

15 / 33

3-6. Power Sequence

LM240WU4

Liquid Crystal Display

Product Specification

V

LCD

90%

90%

Power Supply, V

LCD

Interface Signal, V
(Digital RGB signal,
SCDT ,V

sync

, H

sync

, DE,

i

0V

0V

Clock to PanelLink
Transmitter)

Power Supply for Backlight
Inverter

Table 7. POWER SEQUENCE

Parameter

10%

T1

T2 T5 T7

T6

10%

Valid Data

T3

LAMP ONLAMP OFF

Values

T4

MaxTypMin

LAMP OFF

Units

Notes : 1. Please avoid floating state of interface signal at invalid period.

2. When the interface signal is invalid, be sure to pull down the power supply for LCD V

3. Lamp power must be turn on after power supply for LCD and interface signal are valid.

Ver. 1.0 Jan. 05. 2011

ms10-1.0T1

ms50-0.01T2

ms--500T3

--200T4

ms

ms50-0.01T5

ms-1000T7

to 0V.

LCD

16 / 33

Product Specification

3-7. Power Sequence for Inverter

V

LCD

90%

LM240WU4

Liquid Crystal Display

Power Supply, V

Lamp ON/OFF

Lamp Dimmer

Vin Dipping

BL

0V

Vin_typ

10%

T1

T4

T2

LAMP ONLAMP OFF

T3

T5

Vin_dip ≤ Vin_typ × 0.2

0V

Table 8. POWER SEQUENCE

Parameter

Ver. 1.0 Jan. 05. 2011

Values

MaxTypMin

Units

ms-20T1

ms--500T2

ms50--T3

--500T4

ms

ms10--T5

17 / 33

LM240WU4

Liquid Crystal Display

Product Specification

4. Optical Specifications

Optical characteristics are determined after the unit has been ‘ON’ for approximately 30 minutes

in a dark environment at 25±2°C. The values specified are at an approximate distance 50cm from the LCD
surface at a viewing angle of Φ and θ equal to 0 ° and aperture 1 degree.

FIG. 1 presents additional information concerning the measurement equipment and method.

Pritchard 880 or

equivalent

Optical Stage(x,y)

LCD Module

50cm

FIG. 1 Optical Characteristic Measurement Equipment and Method

Table 9. OPTICAL CHARACTERISTICS

SymbolParameter

Surface Luminance, white

Luminance Variation

Rise Time

Response Time

Decay Time

Gray to Gray

RED

GREEN

Color Coordinates
[CIE1931]

BLUE

WHITE

Color Shift

Horizontal

Vertical

Viewing Angle (CR>10)

General

Effective 8Degree

Horizontal

Vertical

Horizontal

Vertical

WH

δ

WHITE

R

D

GTG_AVR

GTG_MAX

Rx

θ

CST_H

θ

CST_V

θ

H

θ

V

θ

GMA_H

θ

GMA_V

(Ta=25 °C, V

Typ

-0.03

=12.0V, fV=60Hz Dclk=154MHz, VBR=3.3V)

LCD

Values

MaxTypMin

400320L

0.680

0.310Ry

0.214Gx

0.693Gy

0.151Bx

Typ

+0.03

0.050By

0.313Wx

0.329Wy

-178-

-178-

-178170

-178170

-178

-178

NotesUnits

11000700CRContrast Ratio

2

2cd/m

3%75

4ms126.0-Tr

4ms127.0-Tr

5ms126-T

5ms-13-T

6Degree

7Degree

92.2Gray Scale

Ver. 1.0 Jan. 05. 2011

18 / 33

Product Specification

pixels

white

all with

Luminance

Surface

Notes 1. Contrast Ratio(CR) is defined mathematically as :

LM240WU4

Liquid Crystal Display

RatioContrast =

pixels black all with Luminance Surface

It is measured at center point(Location P1)

2. Surface luminance(LWH)is luminance value at 5 points average across the LCD surface 50cm from
the surface with all pixels displaying white. For more information see FIG 2.

L

= = Average[ Lon1,Lon2,Lon3,Lon4,Lon5]

WH

3. The variation in surface luminance , δ WHITE is defined as :

WHITE

=

δ

Where L1 to L9 are the luminance with all pixels displaying white at 9 locations.

For more information see FIG 2.

4. Response time is the time required for the display to transition from black to white (Rise Time,
TrR) and from white to black (Decay Time, TrD). For additional information see FIG 3.

5. Gray to gray response time is the time required for the display to transition from gray to gray.
For additional information see Table 10.

6. Color shift is the angle at which the color difference is lower than 0.04.

For more information see FIG 4.

- Color difference (Δu’v’)

…

)L .. ,L,Minimum(L

P9P2P1

×

100

)L .... ,L ,(L Maximum

P9P2P1

4

'

=

u

- Pattern size : 25% Box size

- Viewing angle direction of color shift : Horizontal, Vertical

7. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are

determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which
is normal to the LCD surface. For more information see FIG 5.

8. Effective viewing angle is the angle at which the gamma shift of gray scale is lower than 0.3.

For more information see FIG 6 and FIG 7.

9. Gray scale specification

Gamma Value is approximately 2.2. For more information see Table 11.

Ver. 1.0 Jan. 05. 2011

x

'

=

3122

++−

yx

21

v

2

9

y

3122

++−

yx

2

)''()''('' vvuuvu −+−=∆

21

u’1, v’1 : u’v’ value at viewing angle direction
u’2, v’2 : u’v’ value at front (θ=0)

19 / 33

Product Specification

Measuring point for surface luminance & measuring point for luminance variation.

H

LM240WU4

Liquid Crystal Display

H/2

●

●

P2

P5

V/2

V

●

V/10

The response time is defined as the following figure and shall be measured by switching the input signal for
“black” and “white”.

P7

FIG. 2 Measure Point for Luminance

●

●

●

P3

P1

P8

●

●

●

H/10

P4

P6

P9

H : 518.4 mm
V : 324.0 mm

TrR

100

90

Optical
Response

10

0

Ver. 1.0 Jan. 05. 2011

black

FIG. 3 Response Time

white

TrD

black

20 / 33

LM240WU4

Liquid Crystal Display

Product Specification

The gray to gray response time is defined as the following figure and shall be measured by switching the

input signal for “Gray To Gray”.

- Gray step : 5 step

- TGTG_AVR is the total average time at rising time and falling time for “Gray To Gray”.

- TGTG_MAX is the max time at rising time or falling time for “Gray To Gray”.

- In case of the difference in measured values due to the difference of measuring device or
program was found, correlated value will be used after discussions between both parties.

Table 10. Gray to gray response time table

Gray to Gray

G1023

G767

Falling Time

G511

G255

G0

Color shift is defined as the following test pattern and color.

FIG. 4 Color Shift Test Pattern

Average RGB values in Bruce RGB for Macbeth Chart

Rising Time

G0G255G511G767G1023

25% Box size

Bluish greenBlue flowerFoliageBlue skyLight skinDark skin

459519311343827395R

799475411451571227G
715743187647495183B

Orange yellowYellow greenPurpleModerate redPurplish blueOrange

923643307847227879R
651775159271279419G

11923534735169999B

cyanMagentaYellowRedGreenBlue

143831967791291107R
507251851111595131G

691607147151263583B

blackNeutral 3.5Neutral 5Neutral 6.5Neutral 8White

91255443623827963R

91255443623827963G
91255443623827963B

Ver. 1.0 Jan. 05. 2011

21 / 33

Dimension of viewing angle range.

+=−

LM240WU4

Liquid Crystal Display

Product Specification

φ

= 180°, Left

φ

= 270°, Down

Normal

E

θ

φ

FIG. 5 Viewing angle

Y

φ

= 90°, Up

φ

= 0°, Right

FIG. 6 Sample Luminance vs. gray scale

(using a 256 bit gray scale)

r

LaVL +=

b

FIG. 7 Sample Log-log plot of luminance

vs. gray scale

b

)log()log()log( aVrLL

Here the Parameter α and γ relate the signal level V to the luminance L.

The GAMMA we calculate from the log-log representation (FIG. 7)

Ver. 1.0 Jan. 05. 2011

22 / 33

Table 11. Gray Scale Specification

LM240WU4

Liquid Crystal Display

Product Specification

Relative Luminance [%] (Typ.)Gray Level

0.100

63

127

191

255

319

383

447

0.30

1.08

2.50

4.71

7.70

11.52

16.18

21.72511

28.15575

35.51639

43.81703

53.07767

63.30831

74.52895

86.75959

1001023

Ver. 1.0 Jan. 05. 2011

23 / 33

LM240WU4

Liquid Crystal Display

Product Specification

5. Mechanical Characteristics

The contents provide general mechanical characteristics. In addition the figures in the next page are detailed
mechanical drawing of the LCD.

546.4mmHorizontal

Outline Dimension

Bezel Area

Active Display Area

Surface Treatment

2740 g(Typ) / 2880 g(Max)Weight

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

352.0mmVertical

40.3mmDepth

522.4mmHorizontal

328.0mmVertical

518.4mmHorizontal

324.0mmVertical

Notes : Please refer to a mechanic drawing in terms of tolerance at the next page.

Ver. 1.0 Jan. 05. 2011

24 / 33

<FRONT VIEW>

LM240WU4

Liquid Crystal Display

Product Specification

Ver. 1.0 Jan. 05. 2011

25 / 33

<REAR VIEW>

LM240WU4

Liquid Crystal Display

Product Specification

Ver. 1.0 Jan. 05. 2011

26 / 33

6. Reliability

Environment test condition

5

Vibration test
(non-operating)

LM240WU4

Liquid Crystal Display

Product Specification

ConditionTest ItemNo

Ta= 60°C 240hHigh temperature storage test1

Ta= -20°C 240hLow temperature storage test2

Ta= 50°C 50%RH 240hHigh temperature operation test3

Ta= 0°C 240hLow temperature operation test4

Wave form : random
Vibration level : 1.0G RMS
Bandwidth : 10-300Hz
Duration : X,Y,Z, 10 min

One time each direction

Shock level : 100G

6

8

9

Shock test
(non-operating)

Humidity condition Operation7

Altitude

storage / shipment

Maximum Storage Humidity for
4 corner light leakage Mura.

Waveform : half sine wave, 2ms
Direction : ±X, ±Y, ±Z

One time each direction

Ta= 40 °C ,90%RH

0 - 40,000 feet(12192m)

Max 70%RH , Ta=40℃

Ver. 1.0 Jan. 05. 2011

27 / 33

LM240WU4

Liquid Crystal Display

Product Specification

7. International Standards

7-1. Safety

a) UL 60950-1:2003, First Edition, Underwriters Laboratories, Inc.,

Standard for Safety of Information Technology Equipment.

b) CAN/CSA C22.2, No. 60950-1-03 1stEd. April 1, 2003, Canadian Standards Association,

Standard for Safety of Information Technology Equipment.

c) EN 60950-1:2001, First Edition,

European Committee for Electrotechnical Standardization(CENELEC)
European Standard for Safety of Information Technology Equipment.

7-2. EMC

a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and

Electrical Equipment in the Range of 9kHZ to 40GHz. “American National Standards Institute(ANSI),
1992

b) C.I.S.P.R “Limits and Methods of Measurement of Radio Interface Characteristics of Information

Technology Equipment.“ International Special Committee on Radio Interference.

c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information

Technology Equipment.“ European Committee for Electrotechnical Standardization.(CENELEC), 1998
( Including A1: 2000 )

7-3. Environment

a) RoHS. Directive 2002/95/EC of the European Parliament and of the Council on the reduction of the

use of certain hazardous substances in electrical and electronic equipment. January 2003

Ver. 1.0 Jan. 05. 2011

28 / 33

8. Packing

8-1. Designation of Lot Mark

a) Lot Mark

A B C D E F G H I J K L M

A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.

Note

1. YEAR

LM240WU4

Liquid Crystal Display

Product Specification

Year

Mark

321

200452005

4

200320022001

2006720078200892009

6

2. MONTH

Month

Mark

Apr5May

4

Jun

6

Jul8Aug9Sep

7

b) Location of Lot Mark

Serial No. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.

2010

0

Oct

A

Nov

B

DecMarFebJan

C321

Ver. 1.0 Jan. 05. 2011

29 / 33

8-2. Packing Form

a) Package quantity in one box : 5EA

b) Box Size : 436 X 346 X 628

LM240WU4

Liquid Crystal Display

Product Specification

Ver. 1.0 Jan. 05. 2011

30 / 33

8-3. Pallet Form

LM240WU4

Liquid Crystal Display

Product Specification

⑤

③

⑥

④

⑦

MATERIALDESCRIPTIONNO.

-PACKING ASS’Y1

PLYWOOD_1140X990X117.5PALLET2

PPBAND3

CLIPBAND, CLIP4

PAPER, SWANGLE COVER5

ARTLABEL6

LLDPEWRAP7

Ver. 1.0 Jan. 05. 2011

31 / 33

LM240WU4

Liquid Crystal Display

Product Specification

9. PRECAUTIONS

Please pay attention to the followings when you use this TFT LCD module.

9-1. MOUNTING PRECAUTIONS

(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the

module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.

(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.

Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former

generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.

(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB

pencil lead. And please do not rub with dust clothes with chemical treatment.

Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental

to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like

chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer.

(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes

deformations and color fading.

(9) Do not open the case because inside circuits do not have sufficient strength.

9-2. OPERATING PRECAUTIONS

(1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :

V=±200mV(Over and under shoot voltage)

(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) Brightness depends on the temperature. (In low temperature, it becomes lower.)

And in lower temperature, response time(required time that brightness is stable after turned on) becomes

longer.

(4) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or

electrical contacted parts. And after fading condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be

done by system manufacturers. Grounding and shielding methods may be important to minimized the

interference.
(7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated

its full characteristics perfectly.

(8) A screw which is fastened up the steels should be a machine screw.

(if not, it causes metallic foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.
(10) Yogore, image sticking can not be guarantee.

Ver. 1.0 Jan. 05. 2011

32 / 33

LM240WU4

Liquid Crystal Display

Product Specification

9-3. ELECTROSTATIC DISCHARGE CONTROL

Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.

9-4. PRECAUTIONS FOR STRONG LIGHT EXPOSURE

Strong light exposure causes degradation of polarizer and color filter.

9-5. STORAGE

When storing modules as spares for a long time, the following precautions are necessary.

(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature

between 5°C and 35°C at normal humidity.

(2) The polarizer surface should not come in contact with any other object.

It is recommended that they be stored in the container in which they were shipped.

9-6. HANDLING PRECAUTIONS FOR PROTECTION FILM

(1) The protection film is attached to the bezel with a small masking tape

When the protection film is peeled off, static electricity is generated between the film and polarizer.
This should be peeled off slowly and carefully by people who are electrically grounded and with well ion­blown equipment or in such a condition, etc.

(2) When the module with protection film attached is stored for a long time, sometimes there remains a very

small amount of glue still on the bezel after the protection film is peeled off.

(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized,

please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal­hexane.

.

Ver. 1.0 Jan. 05. 2011

33 / 33