LM220WE1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
() Final Specification
Title |
22” WSXGA+ TFT LCD |
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BUYER HP
MODEL
SUPPLIER |
LG Display Co., Ltd. |
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*MODEL |
LM220WE1 |
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SUFFIX |
TLE1 |
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*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE DATE
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Please return 1 copy for your confirmation With your signature and comments.
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
Product Engineering Dept.
LG Display Co., Ltd
Ver. 0.0 |
Apr., 15, 2008 |
1 / 32 |
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LM220WE1 |
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Liquid Crystal Display |
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Product Specification |
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Contents |
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COVER |
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1 |
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CONTENTS |
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2 |
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RECORD OF REVISIONS |
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1 |
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GENERAL DESCRIPTION |
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ABSOLUTE MAXIMUM RATINGS |
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ELECTRICAL SPECIFICATIONS |
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1) |
ELECTRICAL CHARACTERISTICS |
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2) |
INTERFACE CONNECTIONS |
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3) |
LVDS characteristics |
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12 |
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4) |
SIGNAL TIMING SPECIFICATIONS |
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5) |
SIGNAL TIMING WAVEFORMS |
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6) |
COLOR INPUT DATA REFERNECE |
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7) |
POWER SEQUENCE |
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8) |
POWER DIP CONDITION |
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OPTICAL SFECIFICATIONS |
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MECHANICAL CHARACTERISTICS |
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RELIABILITY |
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INTERNATIONAL STANDARDS |
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1) |
SAFETY |
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2) |
EMC |
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PACKING |
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30 |
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1) |
DESIGNATION OF LOT MARK |
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30 |
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2) |
PACKING FORM |
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30 |
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PRECAUTIONS |
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1) |
MOUNTING PRECAUTIONS |
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31 |
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2) |
OPERATING PRECAUTIONS |
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31 |
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3) |
ELECTROSTATIC DISCHARGE CONTROL |
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32 |
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4) |
PRECAUTIONS FOR STRONG LIGHT EXPOSURE |
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32 |
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5) |
STROAGE |
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32 |
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6) |
HANDLING PRECAUTIONS FOR PROTECTION FILM |
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32 |
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Ver. 0.0 |
Apr., 15, 2008 |
2 / 32 |
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LM220WE1
Liquid Crystal Display
Product Specification
Record of revisions
Revision No |
Date |
Page |
Description |
Ver. 0.0 |
Apr., 15, 2008 |
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First Draft, Preliminary Specifications |
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Ver. 0.0 |
Apr., 15, 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.
FIG. 1 Block diagram |
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RGB |
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Source driver circuit |
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LVDS |
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S1 |
S1680 |
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G1 |
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pair #1 |
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Timing |
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LVDS |
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controller |
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pair #2 |
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TFT-LCD Panel |
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CN1 |
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(1680×RGB×1050 pixels) |
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(30pin) |
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+5V |
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Power circuit |
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G1050 |
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VLCD |
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block |
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VLamp |
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CN2, 3 (2pin) |
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Backlight assembly (4 CCFLs) |
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VLamp |
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CN4, 5 (2pin) |
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General features |
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Active screen size |
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21.995 inches(558.673mm) diagonal (Aspect ratio 16:10) |
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Outline Dimension |
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493.7(H) x 320.1 (V) x 16.5(D) mm (Typ.) |
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Pixel Pitch |
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0.282mm x 0.282mm |
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Pixel Format |
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1680 horizontal By 1050 vertical Pixels. RGB stripe arrangement |
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Interface |
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LVDS 2Port |
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Color depth |
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16.7M colors |
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Luminance, white |
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300 cd/m2 ( Center 1Point, typ) |
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Viewing Angle (CR>10) |
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R/L 170(Typ.), U/D 160(Typ.) |
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Power Consumption |
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Total 29.4W (Typ.), (4.5W@VLCD , |
24.9W@IBL=7.5mA) |
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Weight |
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2,350g (Typ.) |
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Display operating mode |
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Transmissive mode, normally White |
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Surface treatments |
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Hard coating (3H), Anti-glare treatment of the front polarizer |
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Ver. 0.0 |
Apr., 15, 2008 |
4 / 32 |
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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
Parameter |
Symbol |
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Notes |
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Min |
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Max |
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Power Supply Input Voltage |
VLCD |
-0.3 |
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+6.0 |
Vdc |
At 25 |
Operating Temperature |
TOP |
0 |
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50 |
°C |
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Storage Temperature |
TST |
-20 |
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60 |
°C |
1 |
Operating Ambient Humidity |
HOP |
10 |
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90 |
%RH |
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Storage Humidity |
HST |
10 |
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90 |
%RH |
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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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90% |
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60 |
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60% |
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50 |
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Storage |
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Wet Bulb |
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Temperature [ ] |
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Humidity [(%)RH] |
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40 |
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40% |
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Operation |
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30 |
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20 |
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10 |
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0 |
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10% |
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-20 |
0 |
10 |
20 |
30 |
40 |
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60 |
70 |
80 |
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Dry Bulb Temperature [ ] |
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Ver. 0.0 |
Apr., 15, 2008 |
5 / 32 |
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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
Parameter |
Symbol |
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Values |
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Unit |
Notes |
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Min |
Typ |
Max |
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MODULE : |
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Power Supply Input Voltage |
VLCD |
4.5 |
5.0 |
5.5 |
Vdc |
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Permissive Power Input Ripple |
VLCD |
- |
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0.2 |
V |
3 |
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Power Supply Input Current |
ILCD-MOSAIC |
- |
900 |
1040 |
mA |
1 |
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ILCD-BLACK |
- |
1100 |
1270 |
mA |
2 |
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Power Consumption |
PLCD |
- |
4.5 |
5.2 |
Watt |
1 |
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Inrush current |
IRUSH |
- |
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3.0 |
A |
3 |
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 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 ± 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 |
Ver. 0.0 |
Apr., 15, 2008 |
6 / 32 |
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LM220WE1
Liquid Crystal Display
Product Specification
Table 3. Electrical characteristics
Parameter |
Symbol |
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Values |
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Unit |
Notes |
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Min |
Typ |
Max |
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LAMP : |
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Operating Voltage |
VBL |
810 |
830 |
1000 |
VRMS |
1, 2 |
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(8.0mA) |
(7.5mA) |
(3.0mA) |
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Operating Current |
IBL |
3.0 |
7.5 |
8.0 |
mARMS |
1 |
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Established Starting Voltage |
Vs |
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1, 3 |
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at 25 °C |
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1,250 |
VRMS |
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at 0 °C |
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1,550 |
VRMS |
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Operating Frequency |
fBL |
40 |
60 |
80 |
kHz |
4 |
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Discharge Stabilization Time |
TS |
- |
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3 |
Min |
1, 5 |
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Power Consumption |
PBL |
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24.9 |
27.4 |
Watt |
6 |
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Life Time |
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50,000 |
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Hrs |
1, 7 |
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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 ± 2°C. The variance of the voltage is ± 10%.
3.The voltage above VS should 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%.
TS 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. (PBL = VBL x IBL x NLamp )
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.
Ver. 0.0 |
Apr., 15, 2008 |
7 / 32 |
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LM220WE1
Liquid Crystal Display
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 | / Irms x 100%
* Distortion rate
I -p
I p (or I –p) / Irms
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
Ver. 0.0 |
Apr., 15, 2008 |
8 / 32 |
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LM220WE1
Liquid Crystal Display
Product Specification
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
Pin No |
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Symbol |
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Description |
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1 |
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RXO0- |
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Minus signal of 1st channel 0 (LVDS) |
|
2 |
|
RXO0+ |
|
Plus signal of 1st channel 0 (LVDS) |
|
3 |
|
RXO1- |
|
Minus signal of 1st channel 1 (LVDS) |
|
4 |
|
RXO1+ |
|
Plus signal of 1st channel 1 (LVDS) |
|
5 |
|
RXO2- |
|
Minus signal of 1st channel 2 (LVDS) |
|
6 |
|
RXO2+ |
|
Plus signal of 1st channel 2 (LVDS) |
First Pixel data |
7 |
|
GND |
|
Ground |
|
8 |
|
RXOC- |
|
Minus signal of 1st clock channel (LVDS) |
|
9 |
|
RXOC+ |
|
Plus signal of 1st clock channel (LVDS) |
|
10 |
|
RXO3- |
|
Minus signal of 1st channel 3 (LVDS) |
|
11 |
|
RXO3+ |
|
Plus signal of 1st channel 3 (LVDS) |
|
12 |
|
RXE0- |
|
Minus signal of 2nd channel 0 (LVDS) |
|
13 |
|
RXE0+ |
|
Plus signal of 2nd channel 0 (LVDS) |
|
14 |
|
GND |
|
Ground |
|
15 |
|
RXE1- |
|
Minus signal of 2nd channel 1 (LVDS) |
|
16 |
|
RXE1+ |
|
Plus signal of 2nd channel 1 (LVDS) |
|
17 |
|
GND |
|
Ground |
Second Pixel data |
|
|
|
|
|
|
18 |
|
RXE2- |
|
Minus signal of 2nd channel 2 (LVDS) |
|
19 |
|
RXE2+ |
|
Plus signal of 2nd channel 2 (LVDS) |
|
20 |
|
RXEC- |
|
Minus signal of 2nd clock channel (LVDS) |
|
21 |
|
RXEC+ |
|
Plus signal of 2nd clock channel (LVDS) |
|
22 |
|
RXE3- |
|
Minus signal of 2nd channel 3 (LVDS) |
|
23 |
|
RXE3+ |
|
Plus signal of 2nd channel 3 (LVDS) |
|
24 |
|
GND |
|
Ground |
|
25 |
|
NC |
|
No Connection (For LCD internal use only.) |
|
26 |
|
NC |
|
No Connection (For LCD internal use only.) |
|
27 |
|
PWM_OUT |
|
Reference signal for burst frequency inverter control |
|
28 |
|
VLCD |
|
Power Supply (5.0V) |
|
29 |
|
VLCD |
|
Power Supply (5.0V) |
|
30 |
|
VLCD |
|
Power Supply (5.0V) |
|
Ver. 0.0 |
Apr., 15, 2008 |
9 / 32 |
|
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LM220WE1
Liquid Crystal Display
Product Specification
FIG. 4 Connector diagram
187034-30091 (P-TWO)
#1 |
#30 |
1’st signal pairs
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 VLCD (power input) pins should be connected together.
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.
Ver. 0.0 |
Apr., 15, 2008 |
10 / 32 |
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