LG LM-200WD3-TLCA Service manual
SPECIFICATION
(◆) Preliminary Specification
(◆) Final Specification
LM200WD3
Liquid Crystal Display
Product Specification
FOR
APPROVAL
20.0” HD+ TFT LCDTitle
BUYER
MODEL
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SIGNATURE DATE
/
/
/
Lenovo
SUPPLIER LG Display Co., Ltd.
*MODEL LM200WD3
SUFFIX TLCA
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
K.G. Park / G.Manager
REVIEWED BY
D.G. Kim / Manager [C]
H.D. Joo / Manager [M]
C.S. Shin / Manager [P]
PREPARED BY
S.J. Yeom / Engineer
DATE
Please return 1 copy for your confirmation
With your signature and comments.
Ver. 0.1 Jan., 05, 2011
Product Engineering Dept.
LG Display Co., Ltd
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Product Specification
Contents
LM200WD3
Liquid Crystal Display
No
COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
1)
INTERFACE CONNECTIONS
2)
SIGNAL TIMING SPECIFICATIONS
4)
SIGNAL TIMING WAVEFORMS
5)
COLOR INPUT DATA REFERNECE
6)
POWER SEQUENCE
7)
POWER DIP CONDITION
8)
OPTICAL SFECIFICATIONS
ITEM
Page
1
2
3
41
52
63
6
8
11LVDS characteristics3)
14
15
16
18
19
194
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MECHANICAL CHARACTERISTICS
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RELIABILITY
INTERNATIONAL STANDARDS
1)
SAFETY
2)
EMC
PACKING
1)
DESIGNATION OF LOT MARK
2)
PACKING FORM
255
286
297
29
29
29ENVIRONMENT3)
308
30
30
31PRECAUTIONS9
31MOUNTING PRECAUTIONS1)
31OPERATING PRECAUTIONS2)
32ELECTROSTATIC DISCHARGE CONTROL3)
32PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)
32STROAGE5)
32HANDLING PRECAUTIONS FOR PROTECTION FILM6)
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Product Specification
Record of revisions
Revision No DescriptionDate Page
LM200WD3
Liquid Crystal Display
Ver.0.1
Jan.,05,2011
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Preliminary Specifications.
Ver. 0.1 Jan., 05, 2011
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LM200WD3
Liquid Crystal Display
Product Specification
1. General description
LM200WD3-TLCA is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting
Diode(LED) 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 20.0 inch
diagonally measured active display area with HD+ resolution (900 vertical by 1600 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 LM200WD3-TLCA 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
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+5V
VLCD
Power circuit
block
Timing
controller
RGB
S1
G1
G900
VLED 2ch
Source driver circuit
S1600
TFT-LCD Panel
(1600×RGB×900 pixels)
Backlight assembly (White LED)
General features
Active screen size 20.0 inches (508.05mm) diagonal
Outline Dimension 462.8(H) x 272.0(V) x 10.2(D) mm(Typ.)
Pixel Pitch 0.0922*RGB(H)mm x 0.2766(V)mm
Pixel Format 1600 horizontal By 900 vertical Pixels. RGB stripe arrangement
Interface LVDS 2Port
Color depth 16.7M colors
Luminance, white 250 cd/m2 ( Center 1Point, typ)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)
Power Consumption
Weight 1,530 g (Typ.)
Display operating mode Transmissive mode, normally White
Surface treatments
Ver. 0.1 Jan., 05, 2011
Total 14.2 W(Typ.), (4.3 W@V
Hard coating (3H), Anti-glare treatment of the front polarizer
, 9.9 W@IBL= 110 mA)
LCD
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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
LM200WD3
Liquid Crystal Display
Parameter Notes
Power Supply Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
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.
Note : 2. Storage condition is guaranteed under packing condition.
FIG. 2 Temperature and relative humidity
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Wet Bulb
Temperature [℃]
10
0
Symbol
LCD
OP
ST
OP
ST
50
40
30
20
Values
MaxMin
90%
60
60%
40%
10%
Units
°C500T
°C60-20T
%RH9010H
%RH9010H
Storage
Operation
Humidity
[(%)RH]
At 25℃Vdc+6.0-0.3V
1
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [℃]
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LM200WD3
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 LED/Backlight, is typically
generated by an LED Driver. The LED driver is an external unit to the LCDs.
Table 2. Electrical characteristics
Parameter Symbol
MODULE :
Power Supply Input Voltage
Permissive Power Input Ripple
Power Supply Input Current
Power Consumption
Inrush current
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 fVis 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 5ms and rising time of power Input is 500us ± 20%.
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LCD
LCD
LCD-MOSAIC
LCD-BLACK
I
LCD-L80
LCD
RUSH
Values
MaxTypMin
NotesUnit
Vdc5.55.04.5V
3V0.4--V
1mA1120860-I
2mA14301100-I
2mA1040800-
1Watt5.64.3-P
4A3.0--I
FIG.3 pattern for Electrical characteristics
power consumption
White : 255Gray
Black : 0Gray
Mosaic Pattern(8 x 6)
Ver. 0.1 Jan., 05, 2011
power input ripple
Full Black Pattern
Energy star 5.0
White : 255Gray (80%)
Black : 0Gray (20%)
L80 Pattern
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Product Specification
Table 3. LED array ELECTRICAL CHARACTERISTICS
LM200WD3
Liquid Crystal Display
Power Consumption
LED driver design guide
: The design of the LED driver must have specifications for the LED in LCD Assembly.
The performance of the LED in LCM, for example life time or brightness, is extremely influenced by
the characteristics of the LED driver.
So all the parameters of an LED driver should be carefully designed and output current should be
Constant current control.
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Please control feedback current of each string individually to compensate the current variation
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among the strings of LEDs.
When you design or order the LED driver, please make sure unwanted lighting caused by
the mismatch of the LED and the LED driver (no lighting, flicker, etc) never occurs.
When you confirm it, the LCD module should be operated in the same condition as installed in
your instrument.
ConditionSymbolParameter
Values
Max.Typ.Min.
Unit
Notes
1LED :
2mA120110-IsLED String Current
3V49.044.840.6VsLED String Voltage
4,6Watt10.89.9-Parray
5Hrs--30,000LED_LTLED Life Time
Notes :
1. Specified values are for a single LED bar.
2. The specified current is input LED chip 100% duty current.
3. The specified voltage is input LED string voltage at typical 110mA 100% duty current.
4. The specified power consumption is input LED bar power consumption at typical 110mA 100% duty current.
5. The life time is determined as the time at which luminance of the LED is 50% compared to that of initial
value at the typical LED current on condition of continuous operating at 25 ± 2°C.
6. The LED bar power consumption shown above does not include loss of external driver.
The used LED string current is the LED typical current.
Typ Power Consumption is calculated with PBar = Vs(Typ.) x Is(Typ.) x Nstring
Max Power Consumption is calculated with PBar = Vs(Max.) x Is(Typ) x Nstring
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Liquid Crystal Display
Product Specification
3-2. Interface connections
3-2-1. LCD Module
LCD connector(CN1) : GT103-30S-HF15-E2500 (LSM) , UJU(IS100-L30O-C23)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent
Table 4. Module connector(CN1) pin configuration
LM200WD3
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
RXO0-
RXO0+
RXO1-
RXO1+
RXO2-
RXO2+
GND
RXOC-
RXOC+
RXO3-
RXO3+
RXE0-
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RXE0+
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GND
RXE1-
RXE1+
GND
RXE2-
RXE2+
RXEC-
RXEC+
RXE3-
RXE3+
GND
NC
NC
PWM_OUT
VLCD
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 inverter control
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)
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FIG. 4 Connector diagram
#1 #30
1’st signal pairs
Product Specification
GT103-30S-HF15-ES2500 (LSM)
#
1
2’nd signal pairs
PWM_OUT
Rear view of LCM
#30
Power(+5V)
LM200WD3
Liquid Crystal Display
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.
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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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Liquid Crystal Display
Product Specification
3-2-2. LED Interface
The LED interface connector is a model 10019HR-06 manufactured by Yeonho Electronics.
The mating connector is a FFC/FPC specified in LED interface connector specification.
The pin configuration for the connector is shown in the table below.
Table 5. LED connector pin configuration
Channel1 Current FeedbackFB11
No connectionNC2
LED Power SupplyVLED3
LM200WD3
NotesDescriptionSymbolPin
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FIG. 5 Backlight connector view
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LED
1
LED Power SupplyVLED4
No connectionNC5
Channel2 Current FeedbackFB26
Back View
Back View
6
PCB
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