LG Display LM220WE1-TLM1 Specification

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Product Specification

Contents

LM220WE1

Liquid Crystal Display

No ITEM

COVER 1 CONTENTS 2

RECORD OF REVISIONS 3 1 GENERAL DESCRIPTION 4 2 ABSOLUTE MAXIMUM RATINGS 5 3 ELECTRICAL SPECIFICATIONS 6

1) ELECTRICAL CHARACTERISTICS 6

2) INTERFACE CONNECTIONS 9

4) SIGNAL TIMING SPECIFICATIONS 15

5) SIGNAL TIMING WAVEFORMS 16

6) COLOR INPUT DATA REFERNECE 17

7) POWER SEQUENCE 18

8) POWER DIP CONDITION 19

4 OPTICAL SPECIFICATIONS 20

LVDS characteristics

Page

5 MECHANICAL CHARACTERIST ICS 25 6 RELIABILITY 28 7 INTERNATIONAL STANDARDS 29

1) SAFETY 29

2) EMC 29

8 PACKING 30

1) DESIGNATION OF LOT MARK 30

2) PACKING FORM 30

9 PRECAUTIONS 31

1) MOUNTING PRECAUTIONS 31

2) OPERATING PRECAUTIONS 31

3) ELECTROSTATIC DISCHARGE CONTROL 32

4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 32

5) STROAGE 32

6) HANDLING PRECAUTIONS FOR PROTECTION FILM 32

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Page 3

Product Specification

Record of revisions

Revision No DescriptionDate Page

LM220WE1

Liquid Crystal Display

Ver. 0.0

Jan., 15, 2009

First Draft, Final Specifications

Ver. 0.0 Jan., 15, 2009

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Page 4

LM220WE1

Liquid Crystal Display

Product Specification

1. General description

LM220WE1-TLM1 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 22 inch diagonally measured active display area with WSXGA+ resolution (1050 vertical by 1680 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 LM220WE1-TLM1 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

Power circuit

Timing

controller

block

Lamp

RGB

CN2, 3 (2pin) CN4, 5 (2pin)

Source driver circuit

TFT-LCD Panel

(1680×RGB×1050 pixels)

G1050

Backlight assembly (4 CCFLs)

S1680

General features

Active screen size 21.995 inches(558.673mm) diagonal (Aspect ratio 16:10) Outline Dimension 493.7(H) x 320.1 (V) x 16.5(D) mm (Typ.) Pixel Pitch 0.282mm x 0.282mm Pixel Format 1680 horizontal By 1050 vertical Pixels. RGB stripe arrangement Interface LVDS 2Port Color depth 16.7M colors

Luminance, white 300 cd/m

( Center 1Point, typ) Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.) Power Consumption

Total 30.15W (Typ.), (5.25W@V

, 24.9W@I

LCD

=7.5mA)

Weight 2,350g (Typ.) Display operating mode Transmissive mode, normally White Surface treatments Hard coating (3H), Anti-glare treatment of the front polarizer

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Page 5

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

LM220WE1

Liquid Crystal Display

Parameter Symbol

Units Notes

Min Max

Values

Power Supply Input Voltage V Operating Temperature T Storage Temperature T Operating Ambient Humidity H Storage Humidity H

LCD

-0.3 +6.0 Vdc At 25℃ 0 50 °C

-20 60 °C 10 90 %RH 10 90 %RH

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

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

FIG. 2 Temperature and relative humidity

90%

60%

Wet Bulb Temperature [℃]

40%

10%

Humidity

[(%)RH]

Storage

Operation

10 20 30 40 50 60 70 800-20 Dry Bulb Temperature [℃]

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LM220WE1

Liquid Crystal Display

Product Specification

3. Electrical specifications 3-1. Electrical characteristics

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

Table 2. Electrical characteristi cs

Parameter Symbol

Values

Unit Notes

Min Typ Max

MODULE : Power Supply Input Voltage V Permissive Power Input Ripple V

Power Supply Input Current

LCD-MOSAIC

LCD-BLACK

Power Consumption P Inrush current I

LCD

RUSH

4.5 5.0 5.5 Vdc

- - 0.2 V 3

- 1050 1210 mA 1

- 1200 1380 mA 2

- 5.25 6.05 Watt 1

- - 3.5 A 3

Note :

1. The specified current and power consumption are

under the V

LCD=5.0V, 25 

whereas mosaic pattern(8 x 6) is displayed and f

2°C,fV =60Hz condition

is 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, f

(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 

FIG.3 pattern for Electrical characteri stics

20%.

power consumption measurement

White : 255Gray Black : 0Gray

Mosaic Pattern(8 x 6)

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power input ripple

Full Black Pattern

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Page 7

Product Specification

Table 3. Electrical characteristi cs

LM220WE1

Liquid Crystal Display

Parameter Symbol

Values

Unit Notes

Min Typ Max

LAMP :

Operating Voltage V Operating Current I

810

(8.0mA)

3.0 7.5 8.0 mA

830

(7.5mA)

1000

(3.0mA)

RMS

1, 2

Established Starting Voltage Vs 1, 3

at 25 °C 1,250 V

at 0 °C 1,550 V Operating Frequency f Discharge Stabilization Time T Power Consumption P

40 60 80 kHz 4

- - 3 Min 1, 5

24.9 27.4 Watt 6

RMS RMS

Life Time 50,000 - Hrs 1, 7

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.

※

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 

3. The voltage above V

should be applied to the lamps for more than 1 second for start-up.

2°C. The variance of the voltage is 

10%.

(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 curr ent.

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%. T

is 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. (P

x N

Lamp

)

= V

x I

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.

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Page 8

Liquid Crystal Display

Product Specification

Note :

8. The output of the inverter must have symmetrical(negati ve 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

–I

–p

| / I

rms

x 100%

LM220WE1

I -p

* Distortion rate

(or I

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

–p

) / I

rms

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Page 9

Product Specification

3-2. Interface connections

LCD connector(CN1) : GT103-30S-H23 (LGM) , IS100-L30B-C23 (UJU) Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent

Table 4. Module connector(CN1) pin configuration

LM220WE1

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+ RXE0RXE0+ GND RXE1RXE1+ GND RXE2RXE2+ RXECRXEC+ RXE3RXE3+ GND NC NC

PWM_OUT

LCD

V 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 chan nel (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.) Reference signal for burst frequency inverter control Power Supply (5.0V) Power Supply (5.0V) Power Supply (5.0V)

First Pixel data

Second Pixel data

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FIG. 4 Connector diagram

#1 #30

1’st signal pairs

LM220WE1

Liquid Crystal Display

Product Specification

GT103-30S-H23 (LSM)

2’nd signal pairs

Power(+5V)

PWM_OUT

Rear view of LCM

Note:

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

(power input) pins should be connected togeth er.

LCD

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.

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Page 11

LM220WE1

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,CN4,CN5)

Pin Symbol Description Notes

1 HV High Voltage for Lamp 1

2 LV Low Voltage for Lamp 2

Note : 1. The high voltage power terminal is colored Pink, Sky blue.

2. The low voltage pin color is White, Black.

3. The backlight ground should be common with LCD metal frame.

FIG. 5 Backlight connector view

Pink

CN2, 4

White

Sky Blue

CN3, 5

Black

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3-3. LVDS characteristics

3-3-1. DC Specification

Description Symbol Min Max Unit Notes

LM220WE1

Liquid Crystal Display

Product Specification

LVDS Differential Voltage |V LVDS Common mode Voltage V LVDS Input Voltage Range V

3-3-2. AC Specification

LVDS Clock

LVDS Data

SKEW

Description Symbol Min Max Unit Notes

LVDS Clock to Data Skew Margin

LVDS Clock to Clock Skew Margin (Even to Odd)

| 200 600 mV -

0.6 1.8 V -

0.3 2.1 V -

clk

= 1 /T

)

clk

SKEW

(

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

2) 65MHz > Fclk ≥25MHz : -600 ~ + 600

SKEW

SKEW_EO

- 400 + 400 ps

- 600 + 600 ps

-1/7 + 1/7 T

clk

85MHz > Fclk ≥ 65MHz > Fclk ≥

65MHz 25MHz

Maximum deviation of input clock frequency during SSC

Maximum modulation frequency of input clock during SSC

DEV

MOD

Ver. 0.0 Jan., 15, 2009

- ±

3 % -

- 200 KHz -

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Page 13

Freq.

max

center

Product Specification

< Clock skew margin between channel >

LM220WE1

Liquid Crystal Display

center

* F

DEV

min

3-3-3. LVDS Data format

RCLK +

RXinO0 +/-

RXinO1 +/RXinO2 +/-

RXinO3 +/-

RXinE0 +/-

RXinE1 +/RXinE2 +/-

OR3 OR2 OR1 OR0

OG4 OG3 OG2 OG1

OB5 OB4 OB3 OB2

OG7 OG6 OR7 OR6

ER3 ER2 ER1 ER0

EG4 EG3 EG2 EG1

EB5 EB4 EB3 EB2

MOD

< Spread Spectrum >

Tclk

Tclk * 4/7 Tclk * 3/7

Tclk * 1/7

OG0 OR5 OR4 OR3 OR2 OR1 OR0

OB1 OB0 OG5 OG4 OG3 OG2 OG1

VSYNC HSYNC

X OB7 OB6 OG7 OG6 OR7 OR6

EG0 ER5 ER4 ER3 ER2 ER1 ER0

EB1 EB0 EG5 EG4 EG3 EG2 EG1

VSYNC HSYNC

OB5 OB4 OB3 OB2

EB5 EB4 EB3 EB 2

OG0 OR5 OR4

OB1 OB0 OG5

VSYNC HSYNC

X OB7 OB6

EG0 ER5 ER4

EB1 EB0 EG5

VSYNC HSYNC

Time

MSB R7

R6 R5 R4 R3 R2 R1 R0LSB

* ODD = 1st Pixel

EVEN = 2nd Pixel

RXinE3 +/-

EG7 EG6 ER7 ER6

X EB7 EB6 EG7 EG6 ER7 ER6

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

< LVDS Data Format >

Ver. 0.0 Jan., 15, 2009

X EB7 EB6

th Cycle

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Page 14

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 InputTX CLKIN 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－

LM220WE1

11 TTL Input (G3)D12 39 Positive LVDS differential clock outputTX CLKOUT＋ 12 TTL Input (G4)D13 40 Negative LVDS differential clock outputTX CLKOUT－ 13 Ground pin for TTLGND 41 Positive LVDS differential data output 2TX OUT2＋ 14 TTL Input (G5)D14 42 Negative LVDS differential data output 2TX OUT2－ 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 1TX OUT1＋

46 Negative LVDS differe ntial data output 1TX OUT1－18 TTL Input (B7)D17 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

47 Positive LVDS differential data output 0TX OUT0＋

48 Negative LVDS differe ntial data output 0TX OUT0－

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

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LM220WE1

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

CLK

Horizontal

Vertical

DE (Data Enable)

Data

Period t Frequency

Horizontal Valid H Period Total

Hsync Frequency Vertical Valid t

V Period Total t Vsync Frequency f DE Setup Time t DE Hold Time

Data Setup Time Data Hold Time t

Symbol Min. Typ. Max. Unit Notes

Pixel frequency : Typ.119MHz

CLK

f t t

t t

CLK

13.4 16.8 20.1 ns

49.7 59.6 74.5 MHz 840 840 840

CLK

880 920 1200

54.0 64.8 81.0 kHz

1050 1050 1050

1060 1080 1300

50 60 75 Hz

4 - -

ns For D

4 - 4 - -

ns For D

4 - -

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.

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Page 16

Product Specification

3-5. Signal timing waveforms

1. DCLK , DE, DATA waveforms t

CLK

Clk

tad thud

LM220WE1

Liquid Crystal Display

Valid

Invalid

Data

DE(Data Enable)

2. Horizontal waveform

DE(Data Enable)

3. Vertical waveform

Invalid

tsar this

tHV

top

tVV

DE(Data Enable)

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Page 17

LM220WE1

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

Red

MSB LSB

R7 R6 R5 R4 R3 R2 R1 R0 G7 G6G5G4G3G2 G1G0 B7 B6 B5 B4 B3 B2 B1 B0

MSB LSB

Green

Blue

MSB LSB

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Page 18

3-7. Power sequence

LM220WE1

Liquid Crystal Display

Product Specification

LCD

V Power Supply For LCD

Interface Signal (Tx)

Power for LAMP

Table 9. Power sequence

Parameter

T1 0.5 - 10 ms T2 0.01 - 50 ms T3 500 - - ms

90% 90%

10%

T2 T5 T7

Valid data

OFF

Min Typ Max

Lamp on

Values

10%

OFF

Units

T4 200 - - ms T5 0.01 - 50 ms T7 1 - - s

Notes :

1. Please V

power on only after connecting interface cable to LCD.

LCD

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

LCD

to 0V.

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

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Page 19

Product Specification

LM220WE1

Liquid Crystal Display

3-8. V

Power dip condition

LCD

FIG. 6 Power dip condition

1) Dip condition

3.5V ≤V

＜

4.5V , td ≤20ms

LCD

4.5V

3.5V

GND(ground)

2) V

＜

3.5V

LCD

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

LCD

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Page 20

LM220WE1

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  FIG. 7 presents additional information concerning the measurement equipment and method.

FIG. 7 Optical characteristic measurement equipment and method

and 

equal to 0 °.

Optical

LCD Module

Stage(x,y)

Pritchard 880 or equivalent

50cm

Table 10. Optical characteristics

Parameter Symbol

Contrast Ratio CR 700 1000 - 1

Surface Luminance, white L

Luminance Variation

Response Time

Color Coordinates [CIE1931]

Viewing Angle (CR>5) Color Garmut

x axis, right(=0°) r x axis, left (=180°) l y axis, up (=90°) u

y axis, down (=270°) d

Viewing Angle (CR>10)

x axis, right(=0°) r x axis, left (=180°) l y axis, up (=90°) u y axis, down (=270°) d

Crosstalk 1.5 % 8

Rise Time Tr Decay Time Tr

RED

GREEN

BLUE

WHITE

Luminance uniformity Angular dependence (TCO’03)



WHITE

R D

Rx Ry 0.335 Gx 0.298 Gy 0.611 Bx 0.147

By 0.070 Wx 0.313 Wy 0.329

LR - - 1.7 6

Ta= 25°C, V

Min Typ Max

250 300 - cd/m

9P 75 % 3

- 1.3 2.6 ms 4

- 3.7 7.4 ms 4

Typ

-0.03

75 88 Degree 5 75 88 70 85 70 85

70 85 Degree 5 70 85 60 75 70 85

=5.0V, fV=60Hz f

LCD

Values

0.641

Typ

+0.03

72% 9

=54MHz, IBL=7.5mA

CLK

Units Notes

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Page 21

Liquid Crystal Display

Product Specification

Notes :

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

LM220WE1

Contrast ratio = -

Surface luminance with all w hite pixels 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.

3. The variation in surface luminance , 

is defined as

WHITE

Minimum (P1,P2 …..P9)



WHITE

= --------------------------------------------- *100

Maximum (P1,P2 …..P9)

For more information see Figure 8.

FIG. 8 Luminance measuring point

H/2

H/10

H/2

V/2

V/10

5 6

Active Area

H : 473.76 mm

V : 296.10 mm @ H,V : Active Area

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V/2

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Page 22

Liquid Crystal Display

Product Specification

Notes :

4. Response time is the time required for the display to transition from black to white (Decay Time, Tr

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

) and from white to black (Rise Time, TrR )

LM220WE1

100

Optical

white black white

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

Normal



= 90, Up



= 180, Left





= 270, Down

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

= 0, Right

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Liquid Crystal Display

Product Specification

Notes :

6. Luminance Uniformity - angular – dependence (LR & TB) TCO ‘03 Luminance uniformity – angular dependence, is the capacity of the VDU

to present the same Luminance level independently of the viewing direction. The angular-dependent luminance uniformity is calculated as the ratio of maximum luminance to minimum luminance in the specified measurement areas.

- Test pattern : 80% white pattern

- Test point : 2-point

- Test distance : D * 1.5 = 83.82㎝

-Test method : L

FIG. 11 Luminance Uniformity angular dependence

= ((L = ((L

max.+30deg.

max.+15deg.

/ L

min. +30deg.

/ L

min. +15deg.

) + (L )

max. -30deg.

/ L

min. -30deg.

LM220WE1

)) / 2

< Luminance uniformity - angular dependence measuring point >

7. Gray scale specification

Table 11. Gray scale

Gray level Luminance [%] (Typ)

L0 L31 L63 L95

L127 L159 L191 L223 L255

V/10

V/2

V/10

H/10

0.14

1.23

4.98

12.30

23.58

40.03

61.30

84.03 100

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Page 24

Notes :

LM220WE1

Liquid Crystal Display

Product Specification

8. The equation of crosstalk : (L

FIG. 12 Crosstalk

Pattern 1

(Half gray: gray 127)

A/2

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

(L

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

A/8

B/8

B/2

/L /L

A[or C]1

) 100(%) [Vertical],

B[or D]1

) 100(%) [Horizontal]

Pattern 2

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

A/4 A/2 A/4

B/4

B/2

B/4

9. Color gamut is calculated from CIE 1931 space.

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Page 25

LM220WE1

Liquid Crystal Display

Product Specification

5. Mechanical characteristics

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

Table 12. Mechanical characteristics

Horizontal 493.7 mm

Outline dimension

Bezel area

Active display area

Weight 2,350g (Typ.) 2,500 (Max.)

Surface treatment

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

Vertical 320.1 mm Depth 16.5 mm Horizontal 477.7 mm Vertical 300.1 mm Horizontal 473.76 mm Vertical 296.10 mm

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

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Page 26

< FRONT VIEW >

LM220WE1

Liquid Crystal Display

Product Specification

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Page 27

< REAR VIEW >

LM220WE1

Liquid Crystal Display

Product Specification

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Page 28

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

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 : 120G Waveform : half sine wave, 2msec Direction : ±X, ±Y, ±Z

One time each direction

LM220WE1

Liquid Crystal Display

Altitude

{ 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.

operating storage / shipment

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

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Page 29

LM220WE1

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

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Page 30

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

LM220WE1

Liquid Crystal Display

Product Specification

Year

Mark

2006720078200892009

321

200452005

200320022001

2010

2. Month

Month

Mark

Apr5May

Jun7Jul8Aug9Sep

Oct

b) Location of lot mark

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

8-2. Packing form

a) Package quantity in one box : 8pcs b) Box size : 550mm X 314mm X 401mm

Nov

DecMarFebJan

C321

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Page 31

LM220WE1

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 react i on. (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 recommen ded

for cleaning the adhesives used to attach front / rear polarizers. Do not use acetone,

toluene and alcohol because they cause chemical damage to the polarizer. (8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer

causes deformations and color fading. (9) Do not open the case because inside circuits do not have sufficient strength.

9-2. Operating precautions

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

voltage : V=±200mV(Over and under shoot voltage) (2) Response time depends on the temperature.(In lower temperature, it becomes longer.) (3) Brightness depends on the temperature. (In lower temperature, it becomes lower.)

And in lower temperature, respon se 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 con tacted 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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Page 32

LM220WE1

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 shipp ed.

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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LG Display LM220WE1-TLM1 Specification

Specifications and Main Features

Frequently Asked Questions

User Manual