Datasheet LM-230WU3-SLB1 Service manual (LG)

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( ● ) 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

SIGNATURE

DATE

23.0” WUXGA TFT LCDTitle

LG.Philips LCD Co., Ltd.SUPPLIER

LM230WU3*MODEL

SLB1SUFFIX

*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. 0.0 Nov. 28 . 2005

PREPARED BY

J.H Kim / Engineer

MNT Products Engineering Dept.

LG. Philips LCD Co., Ltd

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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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RELIABLITY6

INTERNATIONAL STANDARDS7

SAFETY7-1

EMC7-2

PACKING8

DESIGNATION OF LOT MARK8-1

PACKING FORM8-2

PRECAUTIONS9

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RECORD OF REVISIONS

LM230WU3

Liquid Crystal Display

Revision

DescriptionPageRevision Date

First Draft(Preliminary)-Nov. 28. 20050.0

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Ver. 0.0 Nov. 28 . 2005

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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 LM230WU3 has been designed to apply the 2 port LVDS interface.

LVDS

2port

CN1

(30pin)

+18.0V

+24.0V

GND

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CN2

(14Pin)

General Features

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

TFT - LCD Panel

(1920 × RGB × 1200 pixels)

G1200

Back light Assembly

(Direct Light Type_12CCFL)

523.4(H) x 335.6(V) x 41.0(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

300 cd/m

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

Total 61.5 Watt (Typ.) (7.5 Watt

2,870g(typ.)Weight

Transmissive mode, normally blackDisplay Operating Mode

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

Ver. 0.0 Nov. 28 . 2005

(Center 1 point)Luminance, White

@VLCD, 54.0 @300cd)Power Consumption

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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]

Symbol

Values

MaxMin

500TOP

60-20TST

90%

60%

40%

Humidity [(%)RH]

10%

Units

Vdc21-0.3VLCD

°C

%RH9010HOP

%RH9010HST

at 25 ± 2°C

Storage

Operation

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [C]

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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.

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

1mA470415-

2mA645560-

1Watt8.57.5-PLCDPower Consumption

3A3.0--IRUSHRush current

Mosaic Pattern(8 x 6)

Ver. 0.0 Nov. 28 . 2005

White Pattern

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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

BRBrightness Adj

= 3.3VI

= 3.3VPBInput Power

V26.024.022.0V

A2.62.25-V

Watt5954-V

V5.0-2.0Lamp ON = HighV

V0.8-0.0Lamp OFF =Low

V3.3-0V

3Hrs50,000Life time

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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) or Equivalent

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

Table 3 MODULE CONNECTOR(CN1) PIN CONFIGURATION

SymbolNo

GND1

GND2

FRX0-3

FRX0+4

FRX1-5

FRX1+6

FRX2-7

FRX2+8

FRXCLK-9

FRXCLK+10

FRX3-11

FRX3+12

SRX0-13

SRX0+14

SRX1-15

Ground

LVDS Signal of Odd channel 0(-)

LVDS Signal of Odd channel 0(+)

LVDS Signal of Odd channel 1(-)

LVDS Signal of Odd channel 1(+)

LVDS Signal of Odd channel 2(-)

LVDS Signal of Odd channel 2(+)

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LVDS Signal of Odd channel Clock(-)

LVDS Signal of Odd channel Clock(+)

LVDS Signal of Odd channel 3(-)

LVDS Signal of Odd channel 3(+)

LVDS Signal of Even channel 0(-)

LVDS Signal of Even channel 0(+)

LVDS Signal of Even channel 1(-)

Description

Symbol

SRX1+

SRX2-

SRX2+

SRXCLK-

SRXCLK+

SRX3-

SRX3+

GND

VLCD

Symbol

LVDS Signal of Even channel 1(+)

LVDS Signal of Even channel 2(-)

LVDS Signal of Even channel 2(+)

LVDS Signal of Even channel Clock(-)

LVDS Signal of Even channel Clock(+)

LVDS Signal of Even channel 3(-)

LVDS Signal of Even channel 3(+)

Ground

Supply voltage +18.0V

OPEN

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 LVDS signal is based on the IEA 664 Standard.

Rear view of LCM

Ver. 0.0 Nov. 28 . 2005

IS100-L30B-C23(UJU)

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Liquid Crystal Display

Product Specification

Table 4. REQUIRED SIGNAL ASSIGNMENT FOR Flat Link (TI:SN75LVDS83) Transmitter

Pin # Require SignalPin Name Pin # Require SignalPin Name

1 Power Supply for TTL InputVCC 29 Ground pin for TTLGND

2 TTL Input (R7)D5 30 TTL Input (DE)D26

3 TTL Input (R5)D6 31 TTL Level clock InputTXCLKIN

4 TTL Input (G0)D7 32 Power Down InputPWR DWN

5 Ground pin for TTLGND 33 Ground pin for PLLPLL GND

6 TTL Input (G1)D8 34 Power Supply for PLLPLL VCC

7 TTL Input (G2)D9 35 Ground pin for PLLPLL GND

8 TTL Input (G6)D10 36 Ground pin for LVDSLVDS GND

9 Power Supply for TTL InputVCC 37 Positive LVDS differential data output 3TxOUT3＋

10 TTL Input (G7)D11 38 Negative LVDS differential data output 3TxOUT3－

11 TTL Input (G3)D12 39 Positive LVDS differential clock outputTXCLKOUT＋

12 TTL Input (G4)D13 40 Negative LVDS differential clock outputTXCLKOUT－

13 Ground pin for TTLGND 41 Positive LVDS differential data output 2TXOUT2＋

14 TTL Input (G5)D14 42 Negative LVDS differential data output 2TXOUT2－

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15 TTL Input (B0)D15 43 Ground pin for LVDSLVDS GND

16 TTL Input (B6)D16 44 Power Supply for LVDSLVDS VCC

17 Power Supply for TTL InputVCC 45 Positive LVDS differential data output 1TXOUT1＋

19 TTL Input (B1)D18

20 TTL Input (B2)D19

22 TTL Input (B3)D20

23 TTL Input (B4)D21

24 TTL Input (B5)D22

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46 Negative LVDS differential data output 1TXOUT1－18 TTL Input (B7)D17

47 Positive LVDS differential data output 0TXOUT0＋

48 Negative LVDS differential data output 0TXOUT0－

49 Ground pin for LVDSLVDS GND21 Ground pin for TTL InputGND

50 TTL Input (R6)D27

51 TTL Input (R0)D0

52 TTL Input (R1)D1

25 TTL Input (RSVD)D23

26 Power Supply for TTL InputVCC 54 TTL Input (R2)D2

Notes : Refer to LVDS Transmitter Data Sheet for detail descriptions.

Ver. 0.0 Nov. 28 . 2005

53 Ground pin for TTLGND

55 TTL Input (R3)D327 TTL Input (HSYNC)D24

56 TTL Input (R4)D428 TTL Input (VSYNC)D25

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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 5. INVERTER CONNECTOR PIN CONFIGULATION

LM230WU3

RemarksDescriptionSymbolPin No

BL1

BL2

BL3

BL4

BL5

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ON12

BR13

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

Power Supply +24.0VV

Power GroundGND6

Power GroundGND7

Power GroundGND9

Power GroundGND10

NCOPEN11

Backlight On/off SignalV

NCOPEN14

Note 1Power GroundGND8

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

(Max :3.3V / Min :0.0V)Brightness Adjustable VoltageV

Rear view of LCM

PCB

…

S14B-PHA-SM3

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

Ver. 0.0 Nov. 28 . 2005

…

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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 6. 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

tWV

tHV

tHBP

tHFP

6.416.496.58

156154152

208820802072

323232

123712351233

6159.9558.85

666

192019201920

888072

564840

NoteUnitMaxTypMinITEM

MHz

tCLK

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. 0.0 Nov. 28 . 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

168160152

120012001200

272625

tHP

432

373533

tWH+ tHBP+ tHFP

tWV+ tVBP+ tVFP

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3-4. Signal Timing Waveforms

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LM230WU3

Liquid Crystal Display

Product Specification

Hsync, Vsync, DE, DATA

CLK

Dclk

INVALID

DATA

DE(Data Enable)

Hsync

0.7VDD

0.3VDD

0.5VDD

VALID

INVALID

Data are latched at the falling edge of DCLK

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HBP

DE(Data Enable)

Vsync

VBP

DE(Data Enable)

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HFP

VFP

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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 7. 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. 0.0 Nov. 28 . 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)

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3-6. Power Sequence

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LM230WU3

Liquid Crystal Display

Product Specification

LCD

90%

Power Supply, V

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

Power Supply for Backlight Inverter

sync

LCD

, H

, DE,

sync

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Table 8. POWER SEQUENCE

10%

T2 T5 T7

10%

LAMP ONLAMP OFF

10%

LAMP OFF

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.

Ver. 0.0 Nov. 28 . 2005

Units

MaxTypMin

ms10--T1

ms50-0.01T2

ms--200T3

--200T4

ms50-0.01T5

ms10-0.01T6

s-1T7

LCD

to 0V.

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3-7. Power Sequence for Inverter

LCD

90%

LM230WU3

Liquid Crystal Display

Power Supply, V

Lamp ON/OFF

Lamp Dimmer

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Vin_typ

10%

LAMP ONLAMP OFF

Vin Dipping

Table 9. POWER SEQUENCE

Parameter

Values

Vin_dip ≤ Vin_typ × 0.2

MaxTypMin

--500T4

Units

ms30-1T1

ms--200T2

ms50--T3

ms10--T5

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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 10. 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

WHITE

GTG_AVR

GTG_MAX

CST_H

CST_V

GMA_H

GMA_V

(Ta=25 °C, V

Typ

-0.03

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

LCD

Values

MaxTypMin

700450CRContrast Ratio

300250L

0.640

0.343Ry

0.292Gx

0.618Gy

0.146Bx

0.074By

0.313Wx

0.329Wy

Typ

+0.03

-178-

-178170

-178

NotesUnits

2cd/m

3%1.3

4ms125.5-Tr

4ms126.5-Tr

5ms10-T

5ms16-T

6Degree

7Degree

92.2Gray Scale

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

LM230WU3

Liquid Crystal Display

RatioContrast =

It is measured at center point(Location P1)

2. Surface luminance(L the surface with all pixels displaying white. For more information see FIG 2.

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

Where P1 to P5 are the luminance with all pixels displaying white at 5 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,

) 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.

WH)is luminance value at center point(P1) across the LCD surface 50cm from

),...,,

LLMaximum(

WHITE

P5P2P1

),...,,

LLMinimum(L

P5P2P1

pixelswhiteallwithLuminanceSurface

pixels black all with Luminance Surface

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

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

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

9. Gray scale specification

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For more information see FIG 4.

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.

For more information see FIG 6 and FIG 7.

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

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- Color difference (∆u’v’)

3122

++−

- Pattern size : 25% Box size

- Viewing angle direction of color shift : Horizontal, Vertical

3122

++−

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

)''()''('' vvuuvu −+−=∆

u’2, v’2 : u’v’ value at front (θ=0)

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

P3P2

LM230WU3

Liquid Crystal Display

A : H / 4 mm B : V / 4 mm H : 495.36 mm V : 309.60 mm @ H,V : Active Area

P5P4

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

100

Optical Response

FIG. 2 Measure Point for Luminance

TrR

TrD

Ver. 0.0 Nov. 28 . 2005

black

FIG. 3 Response Time

white

black

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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

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

-T

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

-T

Table 11. Gray to gray response time table

Gray to Gray

G255

G191

Falling Time

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

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G127

G63

FIG. 4 Test Pattern

Rising Time

G0G63G127G191G255

25% Box size

Average RGB values in Bruce RGB for Macbeth Chart

Ver. 0.0 Nov. 28 . 2005

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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Page 20

Dimension of viewing angle range.

−

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LM230WU3

Liquid Crystal Display

Product Specification

= 180°, Left

= 270°, Down

Normal

FIG. 5 Viewing angle

= 90°, Up

= 0°, Right

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FIG. 6 Sample Luminance vs. gray scale

(using a 256 bit gray scale)

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)

FIG. 7 Sample Log-log plot of luminance

vs. gray scale

)log()log()log( aVrLL

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Page 21

Table 12. Gray Scale Specification

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LM230WU3

Liquid Crystal Display

Product Specification

Relative Luminance [%] (Typ.)Gray Level

0.30

127

159

191

223

255

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1.2

4.7

11.7

21.2

35.2

53.0

75.4

100

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Page 22

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

2,870g (Typ.) / 3,010g (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

41mmDepth

499.4mmHorizontal

313.6mmVertical

495.36mmHorizontal

309.6mmVertical

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Page 23

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Liquid Crystal Display

Product Specification

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Page 24

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Liquid Crystal Display

Product Specification

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Page 25

6. Reliability

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Environment test condition

Vibration test (non-operating)

LM230WU3

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 : 10-500Hz Duration : X,Y,Z, 10 min

One time each direction

Shock level : 100Grms

Shock test (non-operating)

Humidity condition Operation7

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Altitude

storage / shipment

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

One time each direction

40 °C, 90%RH

Ta=

0 - 40,000 feet(12192m)

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Page 26

Liquid Crystal Display

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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 1st Ed. 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.

d) RoHS, Directive 2003/95/EC of the European Parliament and of the council of 27 January 2003.

7-2. EMC

LM230WU3

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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Page 27

Product Specification

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8. Packing

8-1. Designation of Lot Mark

a) Lot Mark

ABCDEFGHI JKLM

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

Note

1. YEAR

LM230WU3

Liquid Crystal Display

Year

Mark

2. MONTH

Month

Mark

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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.

200320022001

321

200452005

Apr5May

2006720078200892009

Jun

Jul

Aug9Sep

8-2. Packing Form

a) Package quantity in one box : 4PCS

b) Box Size : 494 X 334 X 665

2010

Oct

Nov

DecMarFebJan

C321

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Page 28

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.

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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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