LG Display LM220WE1-TLF1 Specification
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( ) Preliminary Specification
(
) Final Specification
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LM220WE1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
Title 22” WSXGA+ TFT LCD
BUYER LGE
MODEL
SIGNATURE DATE
/
/
SUPPLIER LG Display Co., Ltd.
*MODEL LM220WE1
SUFFIX TLF1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
K.G. Park / G.Manager
REVIEWED BY
S.J. So / Manager [C]
S.Y. An / Manager [M]
H.S. Lee / Manager [P]
DATE
/
Please return 1 copy for your confirmation
With your signature and comments.
Ver. 1.0 Aug., 26, 2008
PREPARED BY
K.H. Lee / Engineer
Product Engineering Dept.
LG Display Co., Ltd
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LM220WE1
Liquid Crystal Display
Product Specification
Contents
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
3) LVDS characteristics 12
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
Page
5 MECHANICAL CHARACTERISTICS 25
6RELIABILITY 28
7 INTERNATIONAL STANDARDS 29
1) SAFETY 29
2) EMC 29
8PACKING 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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Revision No DescriptionDate Page
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LM220WE1
Liquid Crystal Display
Product Specification
Record of revisions
Ver. 0.0
Ver. 1.0
June., 02, 2008
Aug., 26, 2008
27
27
First Draft, Preliminary Specifications
Changed the lamp wire length. ( 170mm ˧ 185mm )
Removed the cover shield holes.
First Draft, Final Specifications
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1. General description
LM220WE1-TLF1 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-TLF1 characteristics provide an excellent flat panel display for
office automation products such as monitors.
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LM220WE1
Liquid Crystal Display
Product Specification
FIG. 1 Block diagram
LVDS
pair #1
LVDS
pair #2
CN1
(30pin)
+5V
VLCD
Power circuit
Timing
controller
block
V
Lamp
V
Lamp
RGB
CN2, 3 (2pin)
CN4, 5 (2pin)
Source driver circuit
S1
G1
TFT-LCD Panel
(1680ÝRGBÝ1050 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
2
( Center 1Point, typ)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)
Power Consumption
Total 29.4W (Typ.), (4.5W@V
, 24.9W@IBL=7.5mA)
LCD
Weight 2,350g (Typ.)
Display operating mode Transmissive mode, normally White
Surface treatments Hard coating(2H) & Glare treatment of the front polarizer
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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
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LM220WE1
Liquid Crystal Display
Product Specification
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
OP
ST
OP
ST
-0.3 +6.0 Vdc At 25
050¶C
-20 60 ¶C
10 90 %RH
10 90 %RH
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
90%
60
60%
Wet Bulb
Temperature []
20
10
0
30
40
50
40%
10%
Humidity
[(%)RH]
Storage
Operation
1
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature []
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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
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LM220WE1
Liquid Crystal Display
Product Specification
Parameter Symbol
Values
Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage V
Permissive Power Input Ripple V
I
Power Supply Input Current
LCD-MOSAIC
I
LCD-BLACK
Power Consumption P
Inrush current I
LCD
LCD
LCD
RUSH
4.5 5.0 5.5 Vdc
--0.2 V 3
- 900 1040 mA 1
- 1100 1270 mA 2
-4.55.2Watt 1
--3.5 A 3
Note :
1. The specified current and power consumption are
under the V
LCD=5.0V, 25 r 2¶C,f
whereas mosaic pattern(8 x 6) is displayed and f
=60Hz condition
V
is the frame frequency.
V
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
V
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 r 20%.
FIG.3 pattern for Electrical characteristics
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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Table 3. Electrical characteristics
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LM220WE1
Liquid Crystal Display
Product Specification
Parameter Symbol
Values
Unit Notes
Min Typ Max
LAMP :
Operating Voltage V
Operating Current I
BL
BL
810
(8.0mA)
3.0 7.5 8.0 mA
830
(7.5mA)
1000
(3.0mA)
V
RMS
RMS
1, 2
1
Established Starting Voltage Vs 1, 3
at 25 ¶C1,250V
at 0 ¶C1,550V
Operating Frequency f
Discharge Stabilization Time T
Power Consumption P
BL
BL
40 60 80 kHz 4
S
--3Min1, 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 r 2¶C. The variance of the voltage is r 10%.
3. The voltage above V
(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%.
is the time required for the brightness of the center of the lamp to be not less than 95%.
T
S
6. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (P
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 r 2¶C.
Ver. 1.0 Aug., 26, 2008
should be applied to the lamps for more than 1 second for start-up.
S
= VBLx IBLx N
BL
Lamp
)
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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 ·10%.
* Inverter output waveform had better be more similar to ideal sine wave.
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LM220WE1
Liquid Crystal Display
Product Specification
* Asymmetry rate:
I p
|I
p
–I–p|/I
rms
x 100%
* Distortion rate
I -p
(or I–p)/I
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
rms
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3-2. Interface connections
LCD connector(CN1) : 187024-30091 (P-TWO) , IS100-L30B-C23 (UJU)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent
Table 4. Module connector(CN1) pin configuration
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LM220WE1
Liquid Crystal Display
Product Specification
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 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.)
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’st signal pairs
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LM220WE1
Liquid Crystal Display
Product Specification
187034-30091 (P-TWO)
#1 #30
2’nd signal pairs
Note:
Power(+5V)
PWM_OUT
Rear view of LCM
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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