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LM220WE1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 22" WSXGA+ TFT LCD
BUYER General SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LM220WE1
SUFFIX TLE1
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE DATE APPROVED BY DATE
K.G. Park / G.Manager
/
REVIEWED BY
S.J. So / Manager [C]
/ S.Y. An / Manager [M]
H.S. Lee / Manager [P]
PREPARED BY
/
K.H. Lee / Engineer
Please return 1 copy for your confirmation Product Engineering Dept.
With your signature and comments. LG Display Co., Ltd
Ver. 0.1 May., 09, 2008 1 / 32
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LM220WE1
Liquid Crystal Display
Product Specification
Contents
No ITEM Page
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
5 MECHANICAL CHARACTERISTICS 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
Ver. 0.1 May., 09, 2008 2 / 32
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LM220WE1
Liquid Crystal Display
Product Specification
Record of revisions
Revision No Date Page Description
Ver. 0.0 Feb., 29, 2008 First Draft, Preliminary Specifications
Ver. 0.1 May., 09, 2008 6 Specified the current and power consumption.
20 Changed the Color Coordinates. (Rx, Ry, Gx)
-. Rx : 0.635 0.641 / Ry : 0.342 0.335
-. Gx : 0.292 0.298
11 Revised the miswriting lamp wire color.
18 Revised the valid data section of Interface Signal (Tx).
Ver. 0.1 May., 09, 2008 3 / 32
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LM220WE1
Liquid Crystal Display
Product Specification
1. General description
LM220WE1-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 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-TLE1 characteristics provide an excellent flat panel display for
office automation products such as monitors.
RGB
FIG. 1 Block diagram
Source driver circuit
S1 S1680
LVDS G1
pair #1 Timing
LVDS controller
pair #2 TFT-LCD Panel
(1680 RGB 1050 pixels)
CN1
(30pin)
+5V G1050
Power circuit
VLCD block
VLamp CN2, 3 (2pin)
VLamp Backlight assembly (4 CCFLs)
CN4, 5 (2pin)
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/m2 ( Center 1Point, typ)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)
Power Consumption Total 29.4W (Typ.), (4.5W@VLCD , 24.9W@IBL=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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LM220WE1
Liquid Crystal Display
Product Specification
2. Absolute maximum ratings
The following are maximum values which, if exceeded,
may cause faulty operation or damage to the unit.
Table 1. Absolute maximum ratings
Values
Parameter Symbol Units Notes
Min Max
Power Supply Input Voltage VLCD -0.3 +6.0 Vdc At 25
Operating Temperature TOP 0 50 C
Storage Temperature TST -20 60 C
1
Operating Ambient Humidity HOP 10 90 %RH
Storage Humidity HST 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%
50 Storage
Wet Bulb
Temperature [ ]
Humidity
[(%)RH]
40
40%
Operation
30
20
10
0
10%
-20 0 10 20 30 40 50 60 70 80
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 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
Values
Parameter Symbol Unit Notes
Min Typ Max
MODULE :
Power Supply Input Voltage VLCD 4.5 5.0 5.5 Vdc
Permissive Power Input Ripple VLCD - - 0.2 V 3
ILCD-MOSAIC - 900 1040 mA 1
Power Supply Input Current
ILCD-BLACK - 1100 1270 mA 2
Power Consumption PLCD - 4.5 5.2 Watt 1
Inrush current IRUSH - - 3.0 A 3
Note :
1. The specified current and power consumption are
under the VLCD=5.0V, 25 r 2 C,fV=60Hz condition
whereas mosaic pattern(8 x 6) is displayed and fV 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, 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 r 20%.
FIG.3 pattern for Electrical characteristics
power consumption measurement power input ripple
White : 255Gray
Black : 0Gray
Mosaic Pattern(8 x 6) Full Black Pattern
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LM220WE1
Liquid Crystal Display
Product Specification
Table 3. Electrical characteristics
Values
Parameter Symbol Unit Notes
Min Typ Max
LAMP :
810 830 1000
Operating Voltage VBL VRMS 1, 2
(8.0mA) (7.5mA) (3.0mA)
Operating Current IBL 3.0 7.5 8.0 mARMS 1
Established Starting Voltage Vs 1, 3
at 25 C 1,250 VRMS
at 0 C 1,550 VRMS
Operating Frequency fBL 40 60 80 kHz 4
Discharge Stabilization Time TS - - 3 Min 1, 5
Power Consumption PBL 24.9 27.4 Watt 6
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