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LM190WX1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 19.0" WXGA+ TFT LCD
BUYER LGE SUPPLIER LG Display CO., Ltd.
MODEL *MODEL LM190WX1
SUFFIX TLG1
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE DATE APPROVED BY DATE
S.G. Hong / G.Manager
/
REVIEWED BY
S.J. So / Manager [C]
/ S.Y. An / Manager [M]
H.S. Lee / Manager [P]
PREPARED BY
/
J.S. Choi / Engineer
Please return 1 copy for your confirmation Product Engineering Dept.
With your signature and comments. LG Display Co., Ltd
Ver. 1.0 Aug. 13, 2008 1 / 31
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LM190WX1
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 INPUT 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 SFECIFICATIONS 20
5 MECHANICAL CHARACTERISTICS 24
6 RELIABILITY 27
7 INTERNATIONAL STANDARDS 28
1) SAFETY 28
2) EMC 28
8 PACKING 29
1) DESIGNATION OF LOT MARK 29
2) PACKING FORM 29
9 PRECAUTIONS 30
1) MOUNTING PRECAUTIONS 30
2) OPERATING PRECAUTIONS 30
3) ELECTROSTATIC DISCHARGE CONTROL 31
4) PRECAUTIONS FOR STRONG LIGHT EXPOSURE 31
5) STROAGE 31
6) HANDLING PRECAUTIONS FOR PROTECTION FILM 31
Ver. 1.0 Aug. 13, 2008 2 / 31
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LM190WX1
Liquid Crystal Display
Product Specification
Record of Revisions
Revision No Date Page Description
Ver 0.0 Apr. 02, 2008 First Draft, Preliminary Specifications.
Ver 0.1 Jun. 02, 2008 20 Fixed the Color Coordinates.
4, 24 Change the LCM Weight.
4, 6 Fixed the Power Consumption.
18 Change the Interface Signal(Tx) Waveform.
Ver 0.2 Aug. 13, 2008 12 Delete the FDEV and FMOD Specification.
13 Delete the Spread Spectrum figure.
20 Change the Color Coordinates. (Gy : 611 608)
26 Change the Cover Shield. (Remove the C/S Hole)
Ver 1.0 Aug. 13, 2008 Final Specifications.
Ver. 1.0 Aug. 13, 2008 3 / 31
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LM190WX1
Liquid Crystal Display
Product Specification
1. General Description
LM190WX1-TLG1 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 19.0 inch diagonally measured active
display area with WXGA+ resolution (900 vertical by 1440 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 LM190WX1-TLG1 characteristics provide an excellent flat panel display for office
automation products such as monitors.
RGB
FIG. 1 Block Diagram
Source Driver Circuit
S1 S1440
LVDS G1
pair #1
CN1 Timing Controller
(30pin)
LVDS
LVDS 1 Chip
pair #2 TFT - LCD Panel
(1440 RGB 900 pixels)
G900
+5V Power Circuit
VLCD Block
VLamp CN2, 3 (2pin)
Back light Assembly (4CCFL)
VLamp CN4, 5 (2pin)
General Features
Active screen size 18.95 inches (481.33mm) diagonal (Aspect ratio 16:10)
Outline Dimension 428.0(H) x 278.0(V) x 16.5(D) mm(Typ.)
Pixel Pitch 0.2835(H)mm x 0.2835(V)mm
Pixel Format 1440 horizontal By 900 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 23.12 Watt(Typ.), (3.6 W@VLCD , 19.52 W@[Lamp=6.5mA])
Weight 1,720g(Typ.)
Display operating mode Transmissive mode, normally White
Surface treatments Hard coating (3H), Anti-glare treatment of the front polarizer
Ver. 1.0 Aug. 13, 2008 4 / 31
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LM190WX1
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 [C]
Humidity
[(%)RH]
40
40%
Operation
30
20
10
0
10%
-20 0 10 20 30 40 50 60 70 80
Dry Bulb Temperature [C]
Ver. 1.0 Aug. 13, 2008 5 / 31
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LM190WX1
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 - 720 828 mA 1
Power Supply Input Current
ILCD-BLACK - 830 955 mA 2
Power Consumption PLCD - 3.6 4.14 Watt 1
Inrush current IRUSH - - 3.0 A 4
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=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
Ver. 1.0 Aug. 13, 2008 6 / 31
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LM190WX1
Liquid Crystal Display
Product Specification
Table 3. Electrical Characteristics
Values
Parameter Symbol Unit Notes
Min Typ Max
LAMP :
Operating Voltage VBL 735(7.0mA) 750(6.5mA) 853(3.0mA) VRMS 1, 2
Operating Current IBL 3.0 6.5 7.0 mARMS 1
Established Starting Voltage Vs 1, 3
at 25 C 1250 VRMS
at 0 C 1550 VRMS
Operating Frequency fBL 40 - 80 kHz 4
Discharge Stabilization Time TS - - 3 Min 1, 5
Power Consumption PBL 19.52 21.47 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