LG LM-185WH1-TLE1 Service manual

SPECIFICATION

( ) Preliminary Specification (◆) Final Specification

LM185WH1

Liquid Crystal Display

Product Specification

FOR

APPROVAL

18.5” WXGA TFT LCDTitle

BUYER

MODEL

www.jxlcd.com

SIGNATURE DATE

/

LGE

SUPPLIER LG Display Co., Ltd.

*MODEL LM185WH1

SUFFIX TLE1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

G.T. KIM / G.Manager

REVIEWED BY

K.H. Hwang / Manager [C]

J. H. Lee / Manager [M]

Y.S. Lee / Manager [P]

PREPARED BY

S.H. Lee / Engineer

DATE

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

Ver. 1.0 DEC., 15, 2008

Product Engineering Dept.

LG Display Co., Ltd

1 / 31

Product Specification

Contents

LM185WH1

Liquid Crystal Display

No

COVER

CONTENTS

RECORD OF REVISIONS

GENERAL DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

1)

INTERFACE CONNECTIONS

2)

3)

LVDS characteristics

SIGNAL TIMING SPECIFICATIONS

4)

SIGNAL TIMING WAVEFORMS

5)

COLOR INPUT DATA REFERNECE

6)

POWER SEQUENCE

7)

POWER DIP CONDITION

8)

OPTICAL SFECIFICATIONS

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MECHANICAL CHARACTERISTICS

ITEM

Page

1

2

3

41

52

63

6

9

12

15

16

17

18

19

204

245

RELIABILITY

INTERNATIONAL STANDARDS

SAFETY

1)

EMC

2)

PACKING

DESIGNATION OF LOT MARK

1)

PACKING FORM

2)

Ver. 1.0 DEC., 15, 2008

276

287

28

298

29

30PRECAUTIONS9

30MOUNTING PRECAUTIONS1)

30OPERATING PRECAUTIONS2)

31ELECTROSTATIC DISCHARGE CONTROL3)

31PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)

31STROAGE5)

31HANDLING PRECAUTIONS FOR PROTECTION FILM6)

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Product Specification

Record of revisions

Revision No DescriptionDate Page

LM185WH1

Liquid Crystal Display

Ver 1.0

DEC.,15,2008

www.jxlcd.com

Final Specifications

Ver. 1.0 DEC., 15, 2008

3 / 31

LM185WH1

Liquid Crystal Display

Product Specification

1. General description

LM185WH1-TLE1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp (CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. It has a

18.5 inch diagonally measured active display area with HD resolution (768 vertical by 1366 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 LM185WH1-TLE1 characteristics provide an excellent flat panel display for office automation products such as monitors.

FIG. 1 Block diagram

RGB

Source driver circuit

S1366

LVDS

pair #1

S1

G1

Timing

controller

TFT-LCD Panel

CN1

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+5V

CN2 (2pin)

CN3 (2pin)

VLCD

Power circuit

block

General features

Active screen size 18.51 inches (470.1mm) diagonal

Outline Dimension 430.4(H) x 254.6(V) x 13.0(D) mm(Typ.)

Pixel Pitch 0.10*RGB(H)mm x 0.30(V)mm

Pixel Format 1366 horizontal By 768 vertical Pixels. RGB stripe arrangement

Interface LVDS 1Port

Color depth 16.7M colors

(1366×RGB×768 pixels)

G768

Backlight assembly (2 CCFLs)

Luminance, white 200 cd/m2 ( Center 1Point, typ)

Viewing Angle (CR>10) R/L 90(Typ.), U/D 50(Typ.)

Power Consumption

Weight 1480 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., 15, 2008

Total 14.98W(Typ.), (3.10W@V

, 11.88 W@IBL=9.0mA)

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

LM185WH1

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

°C500T

°C60-20T

%RH9010H

Storage

Operation

Humidity

[(%)RH]

At 25℃Vdc+6.0-0.3V

1

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [℃]

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LM185WH1

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 5ms and rising time of power Input is 500us ± 20%.

FIG.3 pattern for Electrical characteristics

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LCD

LCD-MOSAIC

I

LCD-BLACK

LCD

RUSH

Values

MaxTypMin

Vdc5.55.04.5V

NotesUnit

3V0.2--V

1mA715620-I

2mA830720-

1Watt3.583.10-P

4A3.0--I

power consumption measurement

White : 255Gray Black : 0Gray

Mosaic Pattern(8 x 6)

Ver. 1.0 DEC., 15, 2008

power input ripple

Full Black Pattern

6 / 31

Product Specification

Table 3. Electrical characteristics

LM185WH1

Liquid Crystal Display

Parameter Symbol

LAMP :

Operating Voltage

Operating Current

at 25 °C

at 0 °C

Operating Frequency

Discharge Stabilization Time

Power Consumption

Note :

The design of the inverter must have specifications for the lamp in LCD Assembly. The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by the characteristics of the DC-AC inverter. So all the parameters of an inverter should be carefully designed so as not to produce too much leakage current from high-voltage output of the inverter. When you design or order the inverter, please make sure unwanted lighting caused by the mismatch of the lamp and the inverter (no lighting, flicker, etc) never occurs. When you confirm it, the LCD–Assembly should be operated in the same condition as installed in you instrument.

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V

BL

S

BL

650

(9.5mA)

Values

660

(9.0mA)

MaxTypMin

840

(2.5mA)

9.59.02.5I

1250

1550

V

RMS

NotesUnit

1, 2V

1mA

1, 3VsEstablished Starting Voltage

4kHz706040f

1, 5Min3--T

6Watt13.0611.88P

1, 7Hrs-35,000Life Time

※ Do not attach a conducting tape to lamp connecting wire. If the lamp wire attach to a conducting tape,

TFT-LCD Module has a low luminance and the inverter has abnormal action. Because leakage current is occurred between lamp wire and conducting tape.

1. Specified values are for a single lamp.

2. Operating voltage is measured at 25 ± 2°C. The variance of the voltage is ± 10%.

3. The voltage above VSshould be applied to the lamps for more than 1 second for start-up. (Inverter open voltage must be more than lamp starting voltage.)

Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current.

4. Lamp frequency may produce interface with horizontal synchronous frequency and as a result

this may cause beat on the display. Therefore lamp frequency shall be as away possible from the horizontal synchronous frequency and from its harmonics in order to prevent interference.

5. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.

TSis the time required for the brightness of the center of the lamp to be not less than 95%.

6. The lamp power consumption shown above does not include loss of external inverter.

The used lamp current is the lamp typical current. (PBL= VBLx IBLx N

7. The life is determined as the time at which brightness 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.

Lamp

)

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Product Specification

Note :

8. The output of the inverter must have symmetrical(negative and positive) voltage

waveform and symmetrical current waveform (Unsymmetrical ratio is less than 10%). Please do not use the inverter which has unsymmetrical voltage and unsymmetrical current and spike wave. Requirements for a system inverter design, which is intended to have a better display performance, a better power efficiency and a more reliable lamp, are following.It shall help increase the lamp lifetime and reduce leakage current.

a. The asymmetry rate of the inverter waveform should be less than 10%. b. The distortion rate of the waveform should be within √2 ±10%.

* Inverter output waveform had better be more similar to ideal sine wave.

* Asymmetry rate:

I p

| I p– I –p| / I

rms

x 100%

LM185WH1

Liquid Crystal Display

I -p

9. The inverter which is combined with this LCM, is highly recommended to connect coupling(ballast) condenser at the high voltage output side. When you use the inverter which has not coupling(ballast) condenser, it may cause abnormal lamp lighting because of biased mercury as time goes.

10.In case of edgy type back light with over 4 parallel lamps, input current and voltage wave form should be synchronized

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* Distortion rate

I p(or I –p) / I

rms

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Product Specification

3-2. Interface connections

LCD connector(CN1) : IS100-L30B-C23 (UJU), 187024-30091 (P-TWO) Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent

Table 4. Module connector(CN1) pin configuration

LM185WH1

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

NC

PWM_OUT

NC GND RX0RX0+ GND RX1RX1+ GND RX2RX2+ GND

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RXCLKRXCLK+ GND RX3RX3+ GND NC NC NC GND GND GND VLCD VLCD VLCD

VLCD

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

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FIG. 4 Connector diagram

#1 #30

PWM signal

#1 #30

LM185WH1

Liquid Crystal Display

Product Specification

187024-30091 (P-TWO)

signal pairs

Power(5V)

Note:

Rear view of LCM

www.jxlcd.com

1. NC: No Connection.

2. All GND(ground) pins should be connected together and to Vss which should also be connected to the LCD’s metal frame.

3. All V

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

5. PWM_OUT is a reference signal for inverter control. This PWM signal is synchronized with vertical frequency. Its frequency is 3 times of vertical frequency, and its duty ratio is 50%. If the system don’t use this pin, do not connect.

(power input) pins should be connected together.

LCD

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LM185WH1

Liquid Crystal Display

Product Specification

The backlight interface connector is a model 35001HS-02LD manufactured by YEONHO. The mating connector part number are 35001WR-02L(2pin) or equivalent. The pin configuration for the connector is shown in the table below.

Table 5. Backlight connector pin configuration(CN2,CN3)

1

2

Notes: 1. The high voltage power terminal is colored gray.

2. The low voltage pin color is white.

FIG. 5 Backlight connector diagram

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Symbol

HV

LV

Description

High Voltage for Lamp

Low Voltage for Lamp

Lamp1

Lamp2

Notes

1

2

CN2

CN3

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3-3. LVDS characteristics

3-3-1. DC Specification

LM185WH1

Liquid Crystal Display

Product Specification

NotesUnitMaxMinSymbolDescription

-mV600200|VID|LVDS Differential Voltage

LVDS Common mode Voltage

LVDS Input Voltage Range

3-3-2. AC Specification

LVDS Clock to Data Skew Margin

Maximum deviation of input clock frequency during SSC

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LVDS Clock

LVDS Data

t

SKEW

CM

IN

T

clk

SKEW (Fclk

t

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

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

= 1/T

SKEW

DEV

clk

)

- 600 ps+ 600t

85MHz > Fclk ≥ 65MHz

ps+ 400- 400t

65MHz > Fclk ≥ 25MHz

%± 3-F

-V1.80.6V

-V2.10.3V

NotesUnitMaxMinSymbolDescription

-

Maximum modulation frequency of input clock during SSC

Ver. 1.0 DEC., 15, 2008

MOD

KHz200-F

-

12 / 31

Freq.

F

max

F

center

F

min

Product Specification

1

F

MOD

LM185WH1

Liquid Crystal Display

F

* F

center

DEV

3-3-3. LVDS Data format

www.jxlcd.com

< Spread Spectrum >

Time

< LVDS Data Format >

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LM185WH1

Liquid Crystal Display

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－

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 : Refer to LVDS Transmitter Data Sheet for detail descriptions.

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LM185WH1

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

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DE (Data Enable)

Data

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Period

Frequency

Horizontal Valid

H Period Total

Hsync Frequency

Vertical Valid

V Period Total

Vsync Frequency

DE Setup Time

DE Hold Time

Data Setup Time

Data Hold Time

Symbol

t

CLK

f

CLK

t

HV

t

HP

H

t

VV

VP

V

SI

HI

t

SD

HD

Min.

11.8

64.2

1366

1430

768

4

Typ.

13.0

77.0

1366

1608

768

-

Max.

15.6

85.0

1366

2044

768

1108798776t

--4t

-

--4t

Unit

ns

MHz

t

CLK

kHz60.647.939.9f

t

HP

Hz756050f

ns

For D

Notes

CLK

Note:

1. LM185WH1-TLE1 is 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.

4. Clock Frequency 85MHz(Max.) = 1430(H) * 793(V) * 75Hz

Ver. 1.0 DEC., 15, 2008

15 / 31

Product Specification

3-5. Signal timing waveforms

1. DCLK , DE, DATA waveforms

t

CLK

Dclk

t

SD

Invalid

Data

DE(Data Enable)

t

SI

LM185WH1

Liquid Crystal Display

t

HD

Valid

Invalid

t

HI

2. Horizontal waveform

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DE(Data Enable)

3. Vertical waveform

DE(Data Enable)

tHV

tVV

tHP

t

DE

VP

DE

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LM185WH1

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

Basic Color

Red

Green

Blue

Color

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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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

0

1

0

1

0

1

-

1

0

1

0

-

0

-

0

MSB LSB

0

1

0

1

0

1

0

1

0

1

0

-

1

0

1

0

-

0

1

0

1

0

1

0

-

0

Green

MSB LSB

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

Blue

0

1

0

1

0

-

0

-

0

-

1

0

1

0

1

0

-

0

-

0

1

0

1

0

-

1

0

1

0

1

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3-7. Power sequence

VLCD Power Supply For LCD

Interface Signal (Tx)

Product Specification

90% 90%

10%

T2 T5 T7

T1

Valid data

LM185WH1

Liquid Crystal Display

10%

0V

Power for LAMP

Table 9. Power sequence

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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 an interface signal are valid.

LCD

to 0V.

OFF

T3

Lamp on

Values

T4

OFF

MaxTypMin

--200T4

Units

ms10-0.5T1

ms50-0.01T2

ms--500T3

ms

ms50-0.01T5

s--1T7

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Product Specification

LM185WH1

Liquid Crystal Display

3-8. V

FIG. 6 Power dip condition

1) Dip condition

Power dip condition

LCD

V

LCD

4.5V

3.5V

t

d

GND(ground)

2) V

3.5V ≤V

＜ 3.5V

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LCD

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V

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

LCD

＜ 4.5V , td≤20ms

LCD

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LM185WH1

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

SymbolParameter

Surface Luminance, white

Luminance Variation

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Response Time

Color Coordinates [CIE1931]

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Rise Time

Decay Time

RED

GREEN

BLUE

δ

WHITE

LCD Module

50cm

WH

9P

R

D

Rx

Ry

Gx

Gy

Bx

By

Ta= 25°C, V

Typ

-0.03

=5.0V, fV=60Hz f

LCD

Values

0.610

0.331

0.317

0.587

0.154

0.096

MaxTypMin

-600400CRContrast Ratio

-200160L

Typ

+0.03

Pritchard 880 or equivalent

= 77.0MHz, IBL=9.0mA

CLK

NotesUnits

2

1

2cd/m

31.5

4ms2.61.1-Tr

4ms7.43.9-Tr

WHITE

Viewing Angle (CR>10)

x axis, right(φ=0°)

x axis, left (φ=180°)

y axis, up (φ=90°)

Ver. 1.0 DEC., 15, 2008

Wx

Wy

θr

θl

θu

θdy axis, down (φ=270°)

0.313

0.329

4540

1510

3530

5Degree

%1.5Crosstalk

20 / 31

Liquid Crystal Display

Product Specification

Notes :

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

Surface luminance with all white pixels

Contrast ratio = ---------------------------------------------------------

Surface luminance with all black pixels

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.

LM185WH1

3. The variation in surface luminance , δ

Maximum (P1,P2 …..P9)

δ

For more information see Figure 8.

FIG. 8 Luminance measuring point

V/2

V

V/10

= ---------------------------------------------

WHITE

Minimum (P1,P2 …..P9)

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H/2

5 6

7

H

H/10

3

1

8

42

9

is defined as

WHITE

H

H/2

V/2

V

Active Area

Ver. 1.0 DEC., 15, 2008

H : 409.800 mm V : 230.400 mm @ H,V : Active Area

21 / 31

Liquid Crystal Display

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

LM185WH1

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

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θ

φ

= 0°, Right

22 / 31

Notes :

6. Gray scale specification

Table 11. Gray scale

L0

L31

L63

L95

L127

L159

L191

L223

L255

LM185WH1

Liquid Crystal Display

Product Specification

Luminance [%] (Typ)Gray level

0.11

1.17

4.80

11.10

20.53

34.44

54.53

78.66

100

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LM185WH1

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

430.4 mmHorizontal

Outline dimension

Bezel area

Active display area

1480 g (Typ.) 1550 g (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 treatment of the front polarizer

254.6 mmVertical

13.0 mmDepth

413.4 mmHorizontal

234.0 mmVertical

409.800 mmHorizontal

230.400 mmVertical

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LM185WH1

Liquid Crystal Display

Product Specification

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LM185WH1

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

7

Vibration test (non-operating)

Shock test (non-operating)

Altitude

operating storage / shipment

Vibration level : 1.0GRMS Bandwidth : 10-300Hz Duration : X,Y,Z, 30 min

One time each direction Shock level : 120G Waveform : half sine wave, 2msec Direction : ±X, ±Y, ±Z

One time each direction

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

LM185WH1

Liquid Crystal Display

{ 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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LM185WH1

Liquid Crystal Display

Product Specification

7. International standards

7-1. Safety

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

Standard for Safety of Information Technology Equipment.

b) CAN/CSA C22.2, No. 60950-1-03 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 Electro-technical Standardization(CENELEC) European Standard for Safety of Information Technology Equipment.

d) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27

January 2003

7-2. EMC

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

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

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

Information Technology Equipment.“ International Special Committee on Radio Interference.

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

Information Technology Equipment.“ European Committee for Electro-technical

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Standardization.(CENELEC), 1998 ( Including A1: 2000 )

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Product Specification

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

LM185WH1

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

200452005

321

4

Apr5May

4

2006720078200892009

6

Jun7Jul8Aug9Sep

6

2010

0

Oct

A

Nov

8-2. Packing form

a) Package quantity in one box : 10 pcs b) Box size : 540 mm X 312 mm X 315 mm

DecMarFebJan

B

C321

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LM185WH1

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

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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LM185WH1

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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Product Specification

LM185WH1

Liquid Crystal Display

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LG LM-185WH1-TLE1 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual