Datasheet LM-230WU3-STC2 Service manual (LG)

( ) Preliminary Specification

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(● ) Final Specification

LM230WU3

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER

MODEL

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APPROVED BY

/

/

APPLE

SIGNATURE

DATE

23.0” WUXGA TFT LCDTitle

LG.Philips LCD Co., Ltd.SUPPLIER

LM230WU3*MODEL

STC2SUFFIX

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

S.G Hong / G.Manager

REVIEWED BY

K.G Park / Manager

SIGNATURE

DATE

/

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 2.0 Sep. 21 . 2005

PREPARED BY

J.H Kim / Engineer

MNT Products Engineering Dept.

LG. Philips LCD Co., Ltd

1/ 28

Product Specification

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Contents

LM230WU3

Liquid Crystal Display

PageITEMNo

COVER

CONTENTS

RECORD OF REVISIONS

GENERAL DESCRIPTION1

ABSOLUTE MAXIMUM RATINGS2

ELECTRICAL SPECIFICATIONS3

ELECTRICAL CHARACTREISTICS3-1

INTERFACE CONNECTIONS3-2

SIGNAL TIMING SPECIFICATIONS3-3

SIGNAL TIMING WAVEFORMS3-4

COLOR INPUT DATA REFERNECE3-5

POWER SEQUENCE3-6

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OPTICAL SFECIFICATIONS4

MECHANICAL CHARACTERISTICS5

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1

2

3

4

5

6

6

8

10

12

13

14

16

21

RELIABLITY6

INTERNATIONAL STANDARDS7

SAFETY7-1

EMC7-2

PACKING8

DESIGNATION OF LOT MARK8-1

PACKING FORM8-2

PRECAUTIONS9

Ver. 2.0 Sep. 21 . 2005

24

25

25

25

26

26

26

27

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Product Specification

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RECORD OF REVISIONS

LM230WU3

Liquid Crystal Display

Revision

No

DescriptionPageRevision Date

First Draft(Preliminary)-May. 02. 20050.0

Updated the LCM Drawing22, 23May. 04. 20050.1

Updated the Table2-1, Table2-2, Table96, 7, 16Jul. 11. 20050.2

Updated the Table7, Updated the Safety14, 25Jul. 28. 20051.0

Changed the Suffix name (STC1 Æ STC2)-Sep. 21. 20052.0

Changed the Table 3 (Deleted HDCP Function)8

Changed the Table 9 (Contrast Ratio : 800 Æ 700)16

Updated the LCM Drawing (Changed the suffix name)23

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LM230WU3

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Liquid Crystal Display

Product Specification

1. General Description

The LM230WU3 LCD is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) back light 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. This TFT-LCD has a 23.0 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 luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot, thus, presenting
a palette of more than 16,777,216 colors.
The LM230W02 has been designed to apply the TMDS

TM

(Transition Minimized Differential Signaling) interface.

TMDS

4pair

CN1

(30pin)

+18.0V

+18.0V

PWR CTRL

+24.0V

GND

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CN2

(14Pin)

General Features

TMDS

Rx

R/G/B

Timing

Controller

Power Circuit

Block

Inverter

Block

23.0 inches(58.4cm) diagonalActive Screen Size

Gate Driver Circuit

2pin x 6CNs (High)

2pin x 1CN (Low)

Source Driver Circuit

S1 S1920

G1

TFT - LCD Panel

(1920 × RGB × 1200 pixels)

G1200

Back light Assembly

(Direct Light Type_12CCFL)

523.4(H) x 335.6(V) x 36.9(D) mm(Typ.)Outline Dimension

0.258 mm x 0.258 mmPixel Pitch

1920 horiz. By 1200 vert. Pixels RGB stripes arrangementPixel Format

8-bit, 16,777,216 colorsColor Depth

2

400 cd/m

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

Total 61.1 Watt (Typ.) (8.1 Watt

2,790g(typ.)Weight

Transmissive mode, normally blackDisplay Operating Mode

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

Ver. 2.0 Sep. 21 . 2005

(5 points Avg.)Luminance, White

@VLCD, 53 Watt @400cd)Power Consumption

4/ 28

LM230WU3

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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

Parameter Notes

Power 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.

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Wet Bulb
Temperature [C]

10

0

Symbol

50

40

30

20

Values

MaxMin

500TOP

60-20TST

90%

60

60%

40%

Humidity [(%)RH]

10%

Units

Vdc21-0.3VLCD

°C

°C

%RH9010HOP

%RH9010HST

at 25 ± 2°C

1

Storage

Operation

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [C]

Ver. 2.0 Sep. 21 . 2005

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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 LCDs.

Table 2-1. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

ILCDPower Supply Input Current

Note :

1. The specified current and power consumption are under the V
whereas mosaic pattern(8 x 6) is displayed and f

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

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

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White : 255Gray
Black : 0Gray

is the frame frequency.

V

Values

MaxTypMin

=18.0V, 25 ± 2°C,fV=60Hz condition

LCD

Maximum current pattern

Vdc19.018.017.0VLCDPower Supply Input Voltage

mVp-p400VdRFPermissive Power Input Ripple

NotesUnit

1mA520450-

2mA675585-

1Watt9.48.1-PLCDPower Consumption

3A3.0--IRUSHRush current

Mosaic Pattern(8 x 6)

Ver. 2.0 Sep. 21 . 2005

White Pattern

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Product Specification

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Table 2-2. INVERTER ELECTRICAL CHARACTERISTICS

ConditionSymbolParameter

Inverter :

Values

LM230WU3

Liquid Crystal Display

Unit

Max.Typ.Min.

Notes

Input Voltage

Input Current

LAMP :

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.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.

4. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately
30min in a dark environment at 25 °C± 2°C.

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ON/OFFB/L on/off control

DDB

DDB

BRBrightness Adj

BR

BR

= 3.3VI

= 3.3VPBInput Power

V26.424.021.6V

A2.552.21.85V

Watt585348V

V5.0-2.0Lamp ON = HighV

V0.8-0.0Lamp OFF =Low

V3.3-0V

1

2

2

3Hrs50,000Life time

Ver. 2.0 Sep. 21 . 2005

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Liquid Crystal Display

Product Specification

3-2. Interface Connections

This LCD employs Two interface connections, a 30 pin connector is used for the module electronics and a
14Pin Connector is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN1) : IS100-L30B-C23 (UJU), FI-XB30SSL-HF15 (JAE) or Equivalent

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

Table 3 MODULE CONNECTOR(CN1) PIN CONFIGURATION

SymbolNo

GND1

SHLD22

RX2+3

RX2-4

SHLD15

RX1+6

RX1-7

SHLD08

RX0+9

RX0-10

SHLDC11

RXC+12

RXC-13

GND14

Ground

Shield for TMDS channel 2

TMDS Differential Output(+) (CH 2)

TMDS Differential Output(-) (CH 2)

Shield for TMDS channel 1

TMDS Differential Output(+) (CH 1)

TMDS Differential Output(-) (CH 1)

Shield for TMDS channel 0

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TMDS Differential Output(+) (CH 0)

TMDS Differential Output(-) (CH 0)

Shield for TMDS channel C

TMDS Differential Output(+) (CH C)

TMDS Differential Output(-) (CH C)

Ground

Description

No

16

17

18

19

20

21

22

23

24

25

26

27

28

29

Symbol

OPEN

OPEN

OPEN

GND

GND

GND

V

LCD

V

LCD

V

LCD

PWR_ON

HS_OUT

VS_OUT

GND

OPEN

Symbol

NC

NC

NC

Ground

Ground

Ground

Supply voltage for LCD

Supply voltage for LCD

Supply voltage for LCD

Power ON control signal input

3.3V(H:90%,L:10%)

Hsync Output

Vsync Output

Ground

DDC –Clk(HDCP) for future use

OPEN15

HDCP VCC (3.3V) for future use

30

OPEN

DDC –Data(HDCP) for future use

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.

LCD

3. Input Level of TMDS signal is based on the Digital Visual Interface (DVI 1.0) Standard.

Rear view of LCM

1

Ver. 2.0 Sep. 21 . 2005

30

IS100-L30B-C23(UJU)

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Liquid Crystal Display

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Product Specification

3-2-2. Backlight Interface

- Inverter Connector : S14B-PHA-SM3 Side entry type (Manufactured by JST) or Equivalent

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

Table 4. INVERTER CONNECTOR PIN CONFIGULATION

LM230WU3

RemarksDescriptionSymbolPin No

BL1

BL2

BL3

BL4

BL5

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ON12

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BR13

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

Power Supply +24.0VV

Power Supply +24.0VV

Power Supply +24.0VV

Power Supply +24.0VV

Power Supply +24.0VV

Power GroundGND6

Power GroundGND7

Power GroundGND9

Power GroundGND10

NCOPEN11

Backlight On/off SignalV

Lamp Operating StatusStatus14

Note 1Power GroundGND8

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

(Max :3.3V / Min :0.0V)Brightness Adjustable VoltageV
Normal=0~0.8V
Abnormal=3.0~5.0V

Rear view of LCM

PCB

14

…

1

S14B-PHA-SM3-TB

(JST : Japan Solderless Terminal Co.,Ltd.)

Ver. 2.0 Sep. 21 . 2005

…

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LM230WU3

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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

SYMBOL

Period

Frequency

Period

Width-Active

Period

Frequency

Width-Active

Horizontal Valid

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Horizontal Back Porch

Horizontal Front Porch

tCLK

fCLK

tHP

tWH

tVP

fV

tWV

tHV

tHBP

tHFP

6.496.496.49

154154154

208020802080

323232

123512351235

59.9559.9559.95

666

192019201920

808080

484848

NoteUnitMaxTypMinITEM

ns

MHz

tCLK

tHP

Hz

tHP

tCLK

Data

Enable

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

Ver. 2.0 Sep. 21 . 2005

Horizontal Blank

Vertical Valid

Vertical Back Porch

Vertical Front Porch

Vertical Blank

times of t

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

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.

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

refresh rates.

-

tVV

tVBP

tVFP

-

160160160

120012001200

262626

tHP

333

353535

tWH+ tHBP+ tHFP

tWV+ tVBP+ tVFP

10 / 28

Table 5-1. TIMING TABLE 2

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LM230WU3

Liquid Crystal Display

Product Specification

DCLK

Hsync

Vsync

SYMBOL

Period

Frequency

Period

Width-Active

Period

Frequency

Width-Active

Horizontal Valid

Horizontal Back Porch

Horizontal Front Porch

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tCLK

fCLK

tHP

tWH

tVP

fV

tWV

tHV

tHBP

tHFP

8.168.168.16

122.5122.5122.5

208020802080

323232

122812281228

47.9647.9647.96

666

192019201920

808080

484848

NoteUnitMaxTypMinITEM

ns

MHz

tCLK

tHP

Hz

tHP

tCLK

Data

Enable

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

Horizontal Blank

Vertical Valid

Vertical Back Porch

Vertical Front Porch

Vertical Blank

times of t

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

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.

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

refresh rates.

-

tVV

tVBP

tVFP

-

160160160

120012001200

191919

tHP

333

282828

tWH+ tHBP+ tHFP

tWV+ tVBP+ tVFP

Ver. 2.0 Sep. 21 . 2005

11 / 28

3-4. Signal Timing Waveforms

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LM230WU3

Liquid Crystal Display

Product Specification

Hsync, Vsync, DE, DATA

t

CLK

Dclk

INVALID

DATA

DE(Data Enable)

Hsync

t

WH

0.7VDD

0.3VDD

0.5VDD

VALID

INVALID

Data are latched at the falling edge of DCLK

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t

HP

t

HBP

DE(Data Enable)

t

VP

t

WV

Vsync

t

VBP

DE(Data Enable)

Ver. 2.0 Sep. 21 . 2005

t

HV

t

VV

t

t

HFP

VFP

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LM230WU3

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Liquid Crystal Display

Product Specification

3-5. Color Data Reference

The Brightness of each primary color(red,green,blue) is based on the 8-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 0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0

Red (255)

Green (255)

Blue (255)

Cyan

Magenta

Yellow

White

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MSB LSB

RED

GREEN

MSB LSB

BLUE

MSB LSB

B7 B6 B5 B4 B3 B2 B1 B0G7 G6 G5 G4 G3 G2 G1 G0R7 R6 R5 R4 R3 R2 R1 R0

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

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

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

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

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

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

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

0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0RED (000) Dark

0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 1RED (001)

............

0 0 0 0 0 0 0 00 0 0 0 0 0 0 01 1 1 1 1 1 1 0RED (254)

0 0 0 0 0 0 0 00 0 0 0 0 0 0 01 1 1 1 1 1 1 1RED (255)

GREEN

BLUE (000) Dark

BLUE

Ver. 2.0 Sep. 21 . 2005

0 0 0 0 0 0 0 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0GREEN (000) Dark

0 0 0 0 0 0 0 00 0 0 0 0 0 0 10 0 0 0 0 0 0 0GREEN (001)

............

0 0 0 0 0 0 0 01 1 1 1 1 1 1 00 0 0 0 0 0 0 0GREEN (254)

0 0 0 0 0 0 0 01 1 1 1 1 1 1 10 0 0 0 0 0 0 0GREEN (255)

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

0 0 0 0 0 0 0 10 0 0 0 0 0 0 00 0 0 0 0 0 0 0BLUE (001)

............

1 1 1 1 1 1 1 00 0 0 0 0 0 0 00 0 0 0 0 0 0 0BLUE (254)

1 1 1 1 1 1 1 10 0 0 0 0 0 0 00 0 0 0 0 0 0 0BLUE (255)

13 / 28

3-6. Power Sequence

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V

LCD

90%

LM230WU3

Liquid Crystal Display

Product Specification

90%

Power Supply, V

Interface Signal, V
(Digital RGB signal,
SCDT ,V
Clock to PanelLink
Transmitter)

PWR_CTRL signal
for LCM power down

Power Supply for Backlight
Inverter

sync

LCD

i

, H

, DE,

sync

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0V

10%

T1

T2

T3

3.3V

90%

0V

LAMP OFF LAMP OFF

10%

T4

Customers can monitor H

Invalid Period

( Monitoring H

,V

sync

T6

T5

LAMP ON

sync

T7

, ,V

with V

sync

Valid PeriodValid Period

,

sync

)

T3

T4

LCD

on.

T9

T8

T6

T5

10%

Table 7. POWER SEQUENCE

Values

Parameter

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.

MaxTypMin

--100T4

-400T7

-50T8 ms

200--T9

Units

ms30--T1

ms---T2

ms300--T3

ms

ms80--T5

ms80--T6

LCD

to 0V.

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Product Specification

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3-7. Power Sequence for Inverter

V

LCD

90%

LM230WU3

Liquid Crystal Display

Power Supply, V

Lamp ON/OFF

Lamp Dimmer

BL

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0V

Vin_typ

10%

T1

T2

LAMP ONLAMP OFF

T3

T5

T4

Vin Dipping

0V

Table 8. POWER SEQUENCE

Parameter

Values

Vin_dip ≤ Vin_typ × 0.2

MaxTypMin

--500T4

Units

ms30-1T1

ms--200T2

ms50--T3

ms

ms10--T5

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LM230WU3

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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

Response Time

Color Coordinates
[CIE1931]

Color Shift

Viewing Angle (CR>10)

General

Effective 8Degree

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Rise Time

Decay Time

Gray to Gray

RED

GREEN

BLUE

WHITE

Horizontal

Vertical

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

=18.0V, fV=60Hz Dclk=154MHz, VBR=3.3V)

LCD

Values

MaxTypMin

700-CRContrast Ratio

400-L

0.640

0.343Ry

0.292Gx

0.618Gy

0.146Bx

0.074By

0.313Wx

0.329Wy

Typ

+0.03

-178-

-178-

-178170

-178170

-178

-178

NotesUnits

1

2

2cd/m

3%35

4ms125.5-Tr

4ms126.5-Tr

5ms10-T

5ms20-T

6Degree

7Degree

92.2Gray Scale

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Product Specification

…

…

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

Surface Luminance with all white pixels

Contrast Ratio =

Surface Luminance with all black pixels

2. Surface luminance 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.

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

L

WH

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

WHITE

=

δ

LM230WU3

Liquid Crystal Display

)L .. ,L,Minimum(L- )L .. ,L,Maximum(L

on13on2on1on13on2on1

)L .... ,L ,(L Average

on5on2on1

(%)100

×

Measuring point for surface luminance & measuring point for luminance variation

H

A

H/16

67

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B

V

V/10

A : H/4 mm
B : V/4 mm
@ H,V : Active Area

9

11 12

2

1

4

3

5

Active Area

8

10

13

FIG. 2 Measure Point for Luminance

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Liquid Crystal Display

Product Specification

4. The response time is defined as the following figure and shall be measured by switching
the input signal for “black” and “white”.
Response time is the time required for the display to transition from black to white (Rise Time,

rR) and from white to black (Decay Time, TrD).

T

TrR

100

90

Optical
Response

10

0

5. 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

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-T

GTG_AVR

-T

GTG_MAX

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

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

black

FIG. 3 Response Time

white

TrD

black

Gray to Gray

G255Falling Time

G191

G127

G63

G0

Ver. 2.0 Sep. 21 . 2005

Rising Time

G0G63G127G191G255

18 / 28

Product Specification

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

- Color difference(Δu’v’)

LM230WU3

Liquid Crystal Display

9y

-2x + 12y +3

u’=

-2x + 12y + 3

Δu’v’ = (u’

4x

-u’2)2+(v’1-v’2)

1

v’=

u’1, v’1 : u’v’ value at viewing angle direction

2

u’2, v’2 : u’v’ value at front(θ=0)

- Pattern size : 25% Box size

- Viewing angle direction of color shift : Horizontal, Vertical

θ = 0。

φ = 90。

(12:00)

yu

z

A

θ

25% Box size

φ

= 180。

φ

xl

(9:00)

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TFT LCD
MODULE

z' yd

φ = 270。

(6:00)

φ = 0。

(3:00)

xr

FIG. 4 Viewing angle direction

Average RGB values in Bruce RGB for Macbeth Chart

FIG. 5 Color shift test pattern

Bluish greenBlue flowerFoliageBlue skyLight skinDark skin

114129778520698R

19911810211214256G
1781854616112345B

Orange yellowYellow greenPurpleModerate redPurplish blueOrange

2301607621156219R
162193396769104G

2958868717424B

cyanMagentaYellowRedGreenBlue

352072411977226R
126622122714832G

172151363765145B

blackNeutral 3.5Neutral 5Neutral 6.5Neutral 8White

2263110155206240R

2263110155206240G

2263110155206240B

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LM230WU3

=

−

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Liquid Crystal Display

Product Specification

7. Viewing angle(general) is the angle at which the contrast ratio is greater than 10.

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

FIG. 6 Sample Luminance vs. gray scale
(using a 256 bit gray scale)

r

LaVL +=

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)

9. Gray scale specification
Gamma Value is approximately 2.2. For more information see Table 10.

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Table 10. Gray Scale Specification

31

63

95

127

FIG. 7 Sample Log-log plot of luminance
vs. gray scale

b

Relative Luminance [%] (Typ.)Gray Level

b

0.30

1.2

4.7

11.7

21.2

+

)log()log()log( aVrLL

159

191

223

255

10. TCO ’03 item regarding display characteristic is satisfied.

Ver. 2.0 Sep. 21 . 2005

35.2

53.0

75.4

100

20 / 28

LM230WU3

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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.

523.4mmHorizontal

Outline Dimension

Bezel Area

Active Display Area

2,790g (Typ.) / 2,930g (Max.)Weight

Surface Treatment

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

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Hard coating(3H)
Anti-glare(13%) treatment of the front polarizer

335.6mmVertical

36.9mmDepth

499.4mmHorizontal

313.6mmVertical

495.36mmHorizontal

309.6mmVertical

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<FRONT VIEW>

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LM230WU3

Liquid Crystal Display

Product Specification

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<REAR VIEW>

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LM230WU3

Liquid Crystal Display

Product Specification

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Product Specification

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6. Reliability

Environment test condition

No Test Item Condition

LM230WU3

Liquid Crystal Display

1

2

3

4

5

6

7

Vibration test
(non-operating)

Shock test
(non-operating)

Altitude

operating
storage / shipment

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Ta= 60°C 240hHigh temperature storage test

Ta= -20°C 240hLow temperature storage test

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

Ta= 0°C 240hLow temperature operation test

Wave form : random
Vibration level : 1.0G RMS
Bandwidth : 10-500Hz
Duration : X,Y,Z, 10 min

One time each direction

Shock level : 100G
Waveform : half sine wave, 2ms
Direction : ±X, ±Y, ±Z

One time each direction

0 - 10,000 feet(3048m)
0 - 40,000 feet(12,192m)

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Product Specification

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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 1

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

st

Ed. April 1, 2003, Canadian Standards Association,

LM230WU3

Liquid Crystal Display

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 )

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Ver. 2.0 Sep. 21 . 2005

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8. Packing

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8-1. Designation of Lot Mark

a) Lot Mark

ABCDEFGHI JKLM

A,B,C : SIZE(INCH)
D : YEAR E : MONTH
F : PANEL CODE G : FACTORY CODE
H : ASSEMBLY CODE I,J,K,L,M : SERIAL NO.

Note

1. YEAR

LM230WU3

Liquid Crystal Display

Product Specification

Year

Mark

2. MONTH

Month

Mark

3. PANEL CODE

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Panel Code

Mark

4. FACTORY CODE

Factory Code

5. SERIAL NO.

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Mark

P1 Factory

1

200012001

Apr5May

P2 Factory

2

LPL NanjingLPL Gumi

100000 ~1 ~ 99999Year

0

4

CK

2002320034200452005

P3 Factory

3

2

Jun

6

Jul

7

P4 Factory

4

Aug9Sep

8

P5 Factory

2006

Oct

5

6

A

2007999897

7987

Nov

B

Hydis Panel

H

DecMarFebJan

C321

A0001 ~ A9999, ..... , Z999900001 ~ 99999Mark

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.

8-2. Packing Form

a) Package quantity in one box : 4PCS

b) Box Size : 493 X 333 X 675

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LM230WU3

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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.

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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 lower 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.

Ver. 2.0 Sep. 21 . 2005

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LM230WU3

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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.

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Ver. 2.0 Sep. 21 . 2005

28 / 28