Datasheet LM-230WF5-TLA1 Service manual (LG)

( ) Preliminary Specification (◆) Final Specification

LM230WF5

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

23” Full HD TFT LCDTitle

BUYER Lenovo

MODEL

www.jxlcd.com

SIGNATURE DATE

/

SUPPLIER LG Display Co., Ltd.

*MODEL LM230WF5

SUFFIX TLA1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

K.G. PARK / G.Manager

REVIEWED BY

J.Y. BAE / Manager [C]

S.Y. AN / Manager [M]

C.S. SHIN / Manager [P]

PREPARED BY

N.H. KIM / Engineer

DATE

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

Ver. 1.0 Dec., 10, 2009

Product Engineering Dept.

LG Display Co., Ltd

1 / 31

Product Specification

Contents

LM230WF5

Liquid Crystal Display

No

ITEM

COVER

CONTENTS

RECORD OF REVISIONS

GENERAL DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS

1)

2)

3)

4)

5)

6)

7)

8)

ELECTRICAL CHARACTERISTICS

INTERFACE CONNECTIONS

LVDS characteristics

SIGNAL TIMING SPECIFICATIONS

SIGNAL TIMING WAVEFORMS

COLOR INPUT DATA REFERNECE

POWER SEQUENCE

POWER DIP CONDITION

OPTICAL SPECIFICATIONS

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MECHANICAL CHARACTERISTICS

Page

1

2

3

41

52

63

6

8

11

14

15

16

17

18

194

245

RELIABILITY

INTERNATIONAL STANDARDS

1)

2)

1)

2)

Ver. 1.0 Dec., 10, 2009

SAFETY

EMC

PACKING

DESIGNATION OF LOT MARK

PACKING FORM

276

287

28

298

29

30PRECAUTIONS9

30MOUNTING PRECAUTIONS1)

30OPERATING PRECAUTIONS2)

31ELECTROSTATIC DISCHARGE CONTROL3)

31PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)

31STROAGE5)

31HANDLING PRECAUTIONS FOR PROTECTION FILM6)

2 / 31

Product Specification

Record of revisions

Revision No DescriptionDate Page

LM230WF5

Liquid Crystal Display

Ver. 0.1

Ver. 1.0

June, 02, 2009

Dec., 10, 2009

www.jxlcd.com

First Draft, Preliminary Specifications

Final Specifications

Ver. 1.0 Dec., 10, 2009

3 / 31

LM230WF5

Liquid Crystal Display

Product Specification

1. General description

LM230WF5-TLA1 is a Color Active Matrix Liquid Crystal Display Light Emitting Diode ( White LED) backlight

system without LED driver. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. It has a 23 inch diagonally measured active display area with FHD resolution (1080 vertical by 1920 horizontal pixel array) Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,7M colors with Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method that enables low power, high speed, low EMI. FPD Link or compatible must be used as a LVDS(Low Voltage Differential Signaling) chip. It is intended to support applications where thin thickness, wide viewing angle, low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LM230WF5-TLA1 characteristics provide an excellent flat panel display for office automation products such as monitors.

FIG. 1 Block diagram

LVDS

pair #1

LVDS

pair #2

CN1

(30pin)

+5V

VLCD

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General features

Active screen size

Outline Dimension

Pixel Pitch 0.265mm x 0.265mm

Pixel Format 1920 horizontal By 1080 vertical Pixels. RGB stripe arrangement

Timing

controller

Power circuit

block

23 inches(58.42cm) diagonal(Aspect ratio 16:9)

533.2(H) x 312.0(V) x 11.5(D) mm(Typ.)

RGB

FB 3ch

Source driver circuit

S1

G1

TFT-LCD Panel

(1680×RGB×1050 pixels)

G1080

Backlight assembly (Single LED Bar)

S1920

Interface LVDS 2Port

Color depth 16.7M colors

Luminance, white 250 cd/m2 ( Center 1Point, typ)

Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)

Power Consumption

Weight 1900 g (Typ.)

Display operating mode Transmissive mode, normally White

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

Ver. 1.0 Dec., 10, 2009

Total 18.95 W (Typ.), ( 4.5 W@V

, 14.45 W@W/O_Driver)

LCD

4 / 31

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

LM230WF5

Liquid Crystal Display

Parameter Notes

Power Supply Input Voltage

Operating Temperature

Storage Temperature

Operating Ambient Humidity

Storage Humidity

Note : 1. Temperature and relative humidity range are shown in the figure below.

Wet bulb temperature should be 39 °C Max, and no condensation of water.

FIG. 2 Temperature and relative humidity

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Wet Bulb Temperature [℃]

10

0

Symbol

LCD

OP

ST

OP

ST

50

40

30

20

Values

MaxMin

90%

60

60%

40%

10%

Units

At 25℃Vdc+6.0-0.3V

°C500T

°C60-20T

1

%RH9010H

Storage

Operation

Humidity [(%)RH]

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [℃]

Ver. 1.0 Dec., 10, 2009

5 / 31

LM230WF5

Liquid Crystal Display

Product Specification

3. Electrical specifications

3-1. Electrical characteristics

It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second input power for the CCFL/Backlight, is typically generated by an inverter. The inverter is an external unit to the LCDs.

Table 2. Electrical characteristics

Parameter Symbol

MODULE :

Power Supply Input Voltage

Permissive Power Input Ripple

Power Supply Input Current

Power Consumption

Inrush current

Note :

1. The specified current and power consumption are

under the VLCD=5.0V, 25 ± 2°C,fV=60Hz condition whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.

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

3. Permissive power ripple should be measured under VCC=5.0V, 25°C, fV (frame frequency)=75Hz

condition and At that time, we recommend the bandwidth configuration of oscilloscope is to be under 20MHz.

4. The duration of rush current is about 2ms and rising time of power Input is 500us ± 20%.

FIG.3 pattern for Electrical characteristics

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V

LCD

V

LCD

I

LCD-MOSAIC

I

LCD-BLACK

P

LCD

I

RUSH

Values

MaxTypMin

5.55.04.5

0.4--

1100900-

12501100-

5.54.5-

3.0--

Vdc

NotesUnit

3V

1mA

2mA

1Watt

3A

power consumption measurement

White : 255Gray Black : 0Gray

Mosaic Pattern(8 x 6)

Ver. 1.0 Dec., 10, 2009

power input ripple

Full Black Pattern

6 / 31

Product Specification

Table 3. LED bar Electrical characteristics

LM230WF5

Liquid Crystal Display

ConditionSymbolParameter

Power Consumption

LED driver design guide

: The design of the LED driver must have specifications for the LED in LCD Assembly.

The performance of the LED in LCM, for example life time or brightness, is extremely influenced by the characteristics of the LED driver. So all the parameters of an LED driver should be carefully designed and output current should be Constant current control. Please control feedback current of each string individually to compensate the current variation

among the strings of LEDs. When you design or order the LED driver, please make sure unwanted lighting caused by the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs. When you confirm it, the LCD module should be operated in the same condition as installed in your instrument.

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Values

Max.Typ.Min.

Unit

Notes

1,7LED :

2,7mA160110-Is_peakLED String Current

3,7V46.643.841VsLED String Voltage

4,6,7Watt15.3814.4513.53PBar

5,7Hrs--30,000LED_LTLED Life Time

1. Specified values are for a single LED bar.

2. The specified current is input LED chip 100% duty current.

3. The specified voltage is input LED string and Bar voltage at typical 110 mA 100% duty current.

4. The specified power consumption is input LED bar power consumption at typical 110 mA 100% duty current.

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

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

6. The LED bar power consumption shown above does not include loss of external driver. The used LED bar current is the LED typical current. Min Power Consumption is calculated with PBar = Vs(Min.) x Is(Typ.) x Nstring Max Power Consumption is calculated with PBar = Vbar(Max.) x Is(Typ) x Nstring

7. LED operating DC Forward Current and Junction Temperature must not exceed LED Max Ratings at 25 ± 2°C.

Ver. 1.0 Dec., 10, 2009

7 / 31

Product Specification

3-2. Interface connections

LCD connector(CN1) : GT103-30S-H15 (LSM)

Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent

Table 4. Module connector(CN1) pin configuration

LM230WF5

Liquid Crystal Display

Pin No

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Symbol Description

RXO0RXO0+ RXO1RXO1+ RXO2RXO2+ GND RXOCRXOC+ RXO3RXO3+ RXE0-

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RXE0+ GND RXE1RXE1+ GND RXE2RXE2+ RXECRXEC+ RXE3RXE3+ GND NC NC NC VLCD VLCD VLCD

Minus signal of 1st channel 0 (LVDS) Plus signal of 1st channel 0 (LVDS) Minus signal of 1st channel 1 (LVDS) Plus signal of 1st channel 1 (LVDS) Minus signal of 1st channel 2 (LVDS) Plus signal of 1st channel 2 (LVDS) Ground Minus signal of 1st clock channel (LVDS) Plus signal of 1st clock channel (LVDS) Minus signal of 1st channel 3 (LVDS) Plus signal of 1st channel 3 (LVDS) Minus signal of 2nd channel 0 (LVDS) Plus signal of 2nd channel 0 (LVDS) Ground Minus signal of 2nd channel 1 (LVDS) Plus signal of 2nd channel 1 (LVDS) Ground Minus signal of 2nd channel 2 (LVDS) Plus signal of 2nd channel 2 (LVDS) Minus signal of 2nd clock channel (LVDS) Plus signal of 2nd clock channel (LVDS) Minus signal of 2nd channel 3 (LVDS) Plus signal of 2nd channel 3 (LVDS) Ground No Connection (For LCD internal use only.) No Connection (For LCD internal use only.) No Connection (For LCD internal use only.) Power Supply (5.0V) Power Supply (5.0V) Power Supply (5.0V)

First Pixel data

Second Pixel data

Ver. 1.0 Dec., 10, 2009

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FIG. 4 Connector diagram

1’st signal pairs

Product Specification

GT103-30S-H15 (LSM)

# 1

#1 #30

2’nd signal pairs

Rear view of LCM

CN1

#30

Power(+5V)

LM230WF5

Liquid Crystal Display

Note:

1. NC: No Connection.

www.jxlcd.com

2. All GND(ground) pins should be connected together and to Vss which should also

be connected to the LCD’s metal frame.

3. All V

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

(power input) pins should be connected together.

LCD

Ver. 1.0 Dec., 10, 2009

9 / 31

Product Specification

The LED interface connector is a model 05010HR-06D manufactured by YEONHO. The mating connector part number are TBD or equivalent. The pin configuration for the connector is shown in the table below.

Table 5. LED connector pin configuration

Channel1 Current Feed BackFB11

Channel2 Current Feed BackFB22

LED Power SupplyVled13

LED Power SupplyVled14

NCNC5

LM230WF5

Liquid Crystal Display

NotesDescriptionSymbolPin

FIG. 5 Backlight connector view

www.jxlcd.com

6

1

Channel3 Current Feed BackFB36

PCB

…

Ver. 1.0 Dec., 10, 2009

10 / 31

3-3. LVDS characteristics

3-3-1. DC Specification

LM230WF5

Liquid Crystal Display

Product Specification

NotesUnitMaxMinSymbolDescription

LVDS Common mode Voltage

LVDS Input Voltage Range

3-3-2. AC Specification

LVDS Clock to Data Skew Margin

LVDS Clock to Clock Skew Margin (Even to Odd)

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LVDS Clock

LVDS Data

t

SKEW

CM

IN

T

clk

(

t

F

SKEW

clk

= 1 / T

SKEW

1 ) 85MHz > Fclk ≥65MHz : - 400 ~ + 400 2 ) 65MHz > Fclk ≥25MHz : - 600 ~ + 600

SKEW_EO

clk

- 600

- 1/7

)

ps+ 400- 400t

ps+ 600t

+ 1/7t

T

clk

-mV600200|VID|LVDS Differential Voltage

-V1.80.6V

-V2.10.3V

NotesUnitMaxMinSymbolDescription

85MHz > Fclk ≥ 65MHz

65MHz > Fclk ≥ 25MHz

-

Ver. 1.0 Dec., 10, 2009

11 / 31

3-3-3. LVDS Data format

LM230WF5

Liquid Crystal Display

Product Specification

< Clock skew margin between channel >

Tclk

RCLK +

RXinO0 +/-

RXinO1 +/-

RXinO2 +/-

RXinO3 +/-

RXinE0 +/-

RXinE1 +/-

RXinE2 +/-

RXinE3 +/-

Tclk * 4/7 Tclk * 3/7

Tclk * 1/7

OR3 OR2 OR1 OR0

OG4 OG3 OG2 OG1

OB5 OB4 OB3 OB2

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OG7 OG6 OR7 OR6

ER3 ER2 ER1 ER0

EG4 EG3 EG2 EG1

EB5 EB4 EB3 EB2

EG7 EG6 ER7 ER6

OG0 OR5 OR4 OR3 OR2 OR1 OR0

OB1 OB0 OG5 OG4 OG3 OG2 OG1

VSYNC HSYNC

DE

X O B7 OB6 OG7 OG6 OR7 OR6

EG0 ER5 ER4 ER3 ER2 ER1 ER0

EB1 EB0 EG5 EG4 EG3 EG2 EG1

VSYNC HSYNC

DE

X EB7 EB6 EG7 EG6 ER7 ER6

OB5 OB4 OB3 OB2

EB5 EB4 EB3 EB2

Current (Nth) CyclePrevious (N-1) th Cycle Next (N+1)

OG0 OR5 OR4

OB1 OB0 OG5

VSYNC HSYNC

DE

X OB7 OB6

EG0 ER5 ER4

EB1 EB0 EG5

VSYNC HSYNC

DE

X EB7 EB6

th Cycle

MSB R7

* ODD = 1st Pixel

EVEN = 2nd Pixel

< LVDS Data Format >

R6

R5

R4

R3

R2

R1

R0LSB

Ver. 1.0 Dec., 10, 2009

12 / 31

Product Specification

Table 6. Required signal assignment for Flat Link(NS:DS90CF383) 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－

LM230WF5

Liquid Crystal Display

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－

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

25 TTL Input (RSVD)D23

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

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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

53 Ground pin for TTLGND

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

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

Notes : 1. Refer to LVDS Transmitter Data Sheet for detail descriptions.

2. 7 means MSB and 0 means LSB at R,G,B pixel data

Ver. 1.0 Dec., 10, 2009

13 / 31

LM230WF5

Liquid Crystal Display

Product Specification

3-4. Signal timing specifications

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

Table 7. Timing table

Parameter

D

CLK

Horizontal

Vertical

DE (Data Enable)

Data

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Symb

ol

Period

Frequency

Horizontal Valid

H Period Total

Hsync Frequency

Vertical Valid

V Period Total

Vsync Frequency

DE Setup Time

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DE Hold Time

Data Setup Time

Data Hold Time

t

f

t

CLK

HV

HP

H

VV

VP

V

SI

HI

SD

HD

Min.

11.43

60

1000

960

1090

4

Typ.

13.89

72

1088

960

1100

-

Max.

16.7

87.5

1120

960

1160

108010801080t

--4t

-

--4t

Unit

ns

MHz

t

CLK

kHz836664f

t

HP

Hz756050f

ns

Pixel frequency : Typ.144MHz

For D

Notes

CLK

Note:

1. DE Only mode operation. The input of Hsync & Vsync signal does not have an effect on LCD normal operation.

2. The performance of the electro-optical characteristics may be influenced by variance of the

vertical refresh rates.

3. Horizontal period should be even.

Ver. 1.0 Dec., 10, 2009

14 / 31

3-5. Signal timing waveforms

1. DCLK , DE, DATA waveforms

t

CLK

Clk

tad thud

LM230WF5

Liquid Crystal Display

Product Specification

Valid

Invalid

Data

DE(Data Enable)

2. Horizontal waveform

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DE(Data Enable)

3. Vertical waveform

Invalid

tsar this

th

tHV

DE

top

tVV

DE(Data Enable)

Ver. 1.0 Dec., 10, 2009

DE

15 / 31

LM230WF5

Liquid Crystal Display

Product Specification

3-6. Color input data reference

The brightness of each primary color (red,green and blue) is based on the 8bit 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 8. Color data reference

Input Color Data

Color

Red

MSB LSB

R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0

MSB LSB

Green

Blue

MSB LSB

Basic Color

Red

Green

Blue

Black Red (255) Green (255) Blue (255) Cyan Magenta Yellow White

Red(000) Dark Red(001) Red(002)

- - - - - - - - -

- - - - - - - - Red(253) Red(254) Red(255) Bright

Green(000) Dark Green(001) Green(002)

- - - - - - - - -

- - - - - - - - Green(253) Green(254) Green(255)Bright

Blue(000) Dark Blue(001) Blue(002)

- - - - - - - - -

- - - - - - - - Blue(253) Blue(254) Blue(255) Bright

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0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

-

1

0

1

0

1

0

1

0

1

0

1

0

-

0

1

0

1

0

1

0

1

0

1

0

1

0

-

0

1

0

1

0

1

0

1

Ver. 1.0 Dec., 10, 2009

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3-7. Power sequence

LM230WF5

Liquid Crystal Display

Product Specification

90% 90%

VLCD Power Supply For LCD

Interface Signal (Tx)

Power for LED

Table 9. Power sequence

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Parameter

10%

T2 T5 T7

T1

0V

OFF

T3

Valid data

T4

LED on

Values

10%

OFF

Units

MaxTypMin

ms10-0.5T1

ms50-0.01T2

ms--500T3

--200T4

Notes :

1. Please V

2. Please avoid floating state of interface signal at invalid period.

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

4. LED power must be turn on after power supply for LCD an interface signal are valid.

Ver. 1.0 Dec., 10, 2009

power on only after connecting interface cable to LCD.

LCD

to 0V.

LCD

ms

ms50-0.01T5

s--1T7

17 / 31

Product Specification

LM230WF5

Liquid Crystal Display

3-8. V

FIG. 6 Power dip condition

1) Dip condition

Power dip condition

LCD

3.5V ≤V

＜ 4.5V , td≤20ms

LCD

V

LCD

4.5V

3.5V

t

d

GND(ground)

2) V

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＜ 3.5V

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LCD

V

-dip conditions should also follow the Power On/Off conditions for supply voltage.

LCD

Ver. 1.0 Dec., 10, 2009

18 / 31

LM230WF5

Liquid Crystal Display

Product Specification

4. Optical specification

Optical characteristics are determined after the unit has been ‘ON’ for 30 minutes in a dark environment at 25°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 °. FIG. 7 presents additional information concerning the measurement equipment and method.

FIG. 7 Optical characteristic measurement equipment and method

Optical Stage(x,y)

Table 10. Optical characteristics

Surface Luminance, white

Luminance Variation

Response Time

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Color Coordinates [CIE1931]

Viewing Angle (CR>5)

x axis, right(φ=0°) x axis, left (φ=180°) y axis, up (φ=90°)

y axis, down (φ=270°)

Viewing Angle (CR>10)

x axis, right(φ=0°) x axis, left (φ=180°) y axis, up (φ=90°)

Luminance uniformity Angular dependence (TCO’03)

Rise Time

Decay Time

RED

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GREEN

BLUE

WHITE

SymbolParameter

WH

WHITE

Rx

LCD Module

50cm

9P

R

D

Typ

-0.03

Ta= 25°C, V

Values

0.628

0.348Ry

0.345Gx

0.615Gy

0.153Bx

0.057By

0.313Wx

0.329Wy

8875θl 8570θu 8570θd

8570θl 7560θu 8570θdy axis, down (φ=270°)

=5.0V, fV=60Hz f

LCD

MaxTypMin

-1000700CRContrast Ratio

-250200L

Typ

+0.03

Pritchard 880 or equivalent

=119MHz

CLK

2

NotesUnits

1

2cd/m 3%75δ

4ms2.61.3-Tr

4ms7.43.7-Tr

5Degree8875θr

5Degree8570θr

8%1.5Crosstalk

61.7--LR

Ver. 1.0 Dec., 10, 2009

19 / 31

Product Specification

Notes :

1. Contrast ratio(CR) is defined mathematically as :It is measured at center point(1)

LM230WF5

Liquid Crystal Display

Contrast ratio =

2. Surface luminance is the luminance value at center 1 point(1) across the LCD surface 50cm from the surface with all pixels displaying white.

For more information see FIG 8.

3. The variation in surface luminance , δ

δ

For more information see Figure 8.

FIG. 8 Luminance measuring point

=

WHITE

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Surface luminance with all white pixels

Surface luminance with all black pixels

is defined as

WHITE

Minimum (P1,P2 …..P9)

--------------------------------------------- *100

Maximum (P1,P2 …..P9)

H

H/2

H/10

H

H/2

V/2

V

V/10

Ver. 1.0 Dec., 10, 2009

5 6

7

Active Area

3

1

8

H : 473.76 mm V : 296.10 mm @ H,V : Active Area

42

9

V/2

V

20 / 31

Product Specification

Notes :

4. Response time is the time required for the display to transition from black to white (Decay Time, TrD) and from white to black (Rise Time, TrR)

The sampling rate is 2,500 sample/sec. For additional information see FIG. 9.

The response time is defined as the following figure and shall be measured by switching the input signal for each gray to gray.

FIG. 9 Response time

LM230WF5

Liquid Crystal Display

Tr

R

100

90

Optical

response

[%]

5. Viewing angle is the angle at which the contrast ratio is greater than 10 or 5. 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. 10 .

FIG. 10 Viewing angle

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10

white black white

0

Normal

E

Y

φ

= 90°, Up

Tr

D

φ

= 180°, Left

φ

= 270°, Down

Ver. 1.0 Dec., 10, 2009

θ

φ

= 0°, Right

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Notes :

6. Gray scale specification

Table 11. Gray scale

LM230WF5

Liquid Crystal Display

Product Specification

Luminance [%] (Typ)Gray level

L0

L31

L63

L95

L127

L159

L191

L223

L255

7. The equation of crosstalk : (L

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FIG. 11 Crosstalk

(L

0.1

1.23

4.98

12.30

23.58

40.03

61.30

84.03

100

A[or C]2-LA[or C]1

B[or D]2-LB[or D]1

/L /L

A[or C]1

B[or D]1

) ×100(%) [Vertical],

) ×100(%) [Horizontal]

Pattern 1

(Half gray: gray 127)

A/2

L

A1

B

L

B1

L

C1

A

Ver. 1.0 Dec., 10, 2009

A/8

L

D1

(Background: gray 127, Rectangular: gray 0, gray255 )

B/8

B/2

Pattern 2

A/4 A/2 A/4

L

A2

L

B2

L

C2

B/4

B/2

L

D2

B/4

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LM230WF5

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.

Table 12. Mechanical characteristics

533.2mmHorizontal

Outline dimension

Bezel area

Active display area

Weight

Surface treatment

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

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1900 g (Typ.) 2100 g (Max.)

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

312.0mmVertical

11.5 mmDepth

513.784mmHorizontal

291.016mmVertical

509.184mmHorizontal

286.416mmVertical

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< FRONT VIEW >

LM230WF5

Liquid Crystal Display

Product Specification

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< REAR VIEW >

LM230WF5

Liquid Crystal Display

Product Specification

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Product Specification

6. Reliability

Table 13. Environment test conditions

No Test Item Condition

Ta= 60°C 240hrsHigh temperature storage test1

Ta= -20°C 240hrsLow temperature storage test2

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

Ta= 0°C 240hrsLow temperature operation test4

Wave form : random

5

6

Vibration test (non-operating)

Shock test (non-operating)

Vibration level : 1.0GRMS Bandwidth : 10-300Hz Duration : X,Y,Z, 20 min

One time each direction

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

One time each direction

LM230WF5

Liquid Crystal Display

Altitude

7

{ Result evaluation criteria } There should be no change which might affect the practical display function when the display quality test is

conducted under normal operating condition.

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operating storage / shipment

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0 - 10,000 feet(3,048m) 0 - 40,000 feet(12,192m)

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LM230WF5

Liquid Crystal Display

Product Specification

7. International standards

7-1. Safety

a) UL 60950-1, Second Edition, Underwriters Laboratories Inc.

Information Technology Equipment - Safety - Part 1 : General Requirements.

b) CAN/CSA C22.2 No.60950-1-07, Second Edition, Canadian Standards Association.

Information Technology Equipment - Safety - Part 1 : General Requirements.

c) EN 60950-1:2006 + A11:2009, European Committee for Electrotechnical Standardization(CENELEC).

Information Technology Equipment - Safety - Part 1 : General Requirements.

d) IEC 60950-1:2005, Second Edition, The International Electrotechnical Commission (IEC).

Information Technology Equipment - Safety - Part 1 : General Requirements. (Including report of IEC60825-1:2001 clause 8 and clause 9)

Notes

1. Laser (LED Backlight) Information

Class 1 LED Product

IEC60825-1 : 2001

Embedded LED Power (Class 1)

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7-2. EMC

a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise

Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.” American National Standards Institute (ANSI), 2003.

b) CISPR 22 “Information technology equipment – Radio disturbance characteristics – Limit and

methods of measurement." International Special Committee on Radio Interference (CISPR), 2005.

c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio disturbance

characteristics – Limits and method of measurement." International Special Committee on Radio Interference (CISPR), 2006.

7-3. Environment

a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003

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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

LM230WF5

Liquid Crystal Display

Product Specification

Year

Mark

2. Month

Month

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Mark

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

4

Apr5May

4

2006720078200892009

6

Jun7Jul8Aug9Sep

6

8-2. Packing form

a) Package quantity in one box : 8 pcs

b) Box size : 350 X 300 X 600 mm

2010

0

Oct

A

Nov

B

DecMarFebJan

C321

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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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LM230WF5

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 higher.)

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

not be operated its full characteristics perfectly.

(8) A screw which is fastened up the steels should be a machine screw (if not, it causes metal

foreign material and deal LCM a fatal blow) (9) Please do not set LCD on its edge.

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LM230WF5

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 ion-blown 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 normal-hexane.

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.

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Datasheet LM-230WF5-TLA1 Service manual (LG)

Specifications and Main Features

Frequently Asked Questions

User Manual