LG Display LM185WH2-TLA3 Specification
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( ) Preliminary Specification
) Final Specification
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LM185WH2
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
Title 18.5” HD TFT LCD
BUYER
MODEL
SIGNATURE DATE
/
/
HP
SUPPLIER LG Display Co., Ltd.
*MODEL LM185WH2
SUFFIX TLA3
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY
S.G. Hong / G.Manager
REVIEWED BY
S.U. Byun / Manager [C]
Y.H. Hwang / Manager [M]
H.S. Lee / Manager [P]
DATE
/
Please return 1 copy for your confirmation
With your signature and comments.
Ver. 1.0 NOV., 19, 2010
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PREPARED BY
D.K. Heo / Engineer
Product Engineering Dept.
LG Display Co., Ltd
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LM185WH2
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 8
3)
LVDS characteristics
4) SIGNAL TIMING SPECIFICATIONS 14
5) SIGNAL TIMING WAVEFORMS 15
6) COLOR INPUT DATA REFERNECE 16
7) POWER SEQUENCE 17
8) POWER DIP CONDITION 18
4 OPTICAL SFECIFICATIONS 19
Page
11
5 MECHANICAL CHARACTERISTICS 24
6 RELIABILITY 27
7 INTERNATIONAL STANDARDS 28
1) SAFETY 28
2) EMC 28
8PACKING 29
1) DESIGNATION OF LOT MARK 29
2) PACKING FORM 29
9PRECAUTIONS 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
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Revision No DescriptionDate Page
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LM185WH2
Liquid Crystal Display
Product Specification
Record of revisions
Ver 1.0
NOV.,19,2010
Final Specifications
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1. General description
LM185WH2-TLA3 is a Color Active Matrix Liquid Crystal Display with a Light Emitting Diode
( White LED) backlight system without LED Driver. 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 18.5 inch diagonally measured active display area with HD resolution (768 vertical by
1366 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 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 LM185WH2-TLA3 characteristics provide an excellent
flat panel display for office automation products such as monitors.
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LM185WH2
Liquid Crystal Display
Product Specification
FIG. 1 Block diagram
LVDS
pair #1
Timing
controller
RGB
G1
Source driver circuit
S1
S1366
TFT-LCD Panel
CN1
V
LCD
Power circuit
block
+5V
Vled 3ch
General features
Active screen size 18.51 inches (470.1mm) diagonal
Outline Dimension 430.4(H) x 254.6(V) x 9.7(D) mm(Typ.)
Pixel Pitch 0.10*RGB(H)mm x 0.30(V)mm
Pixel Format 1366 horizontal By 768 vertical Pixels. RGB stripe arrangement
Interface LVDS 1Port
(1366RGB768 pixels)
G768
Backlight assembly (White LED)
Color depth 16.7M colors
Luminance, white 250 cd/m
2
( Center 1Point, typ)
Viewing Angle (CR>10) R/L 170(Typ.), U/D 160(Typ.)
Power Consumption
Total 12.82W(Typ.), (3.60 W@V
, 9.22W@IBL=60mA)
LCD
Weight 1,350g (Typ.)
Display operating mode Transmissive mode, Normally White
Surface treatments
Hard coating(3H), Anti-glare treatment of the front polarizer
Color Gamut 68% CIE1931
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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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LM185WH2
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
050C
-20 60 C
10 90 %RH
10 90 %RH
Notes : 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.
2. Storage condition is guaranteed under packing condition.
FIG. 2 Temperature and relative humidity
90%
60
60%
1, 2
Wet Bulb
50
Temperature []
40
30
20
10
0
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature []
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40%
10%
Humidity
Storage
Operation
[(%)RH]
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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 White LED/Backlight, is typically
generated by a LED Driver. The inverter is an external unit to the LCDs.
Table 2. Electrical characteristics
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LM185WH2
Liquid Crystal Display
Product Specification
Parameter Symbol
Min Typ Max
Values
Unit Notes
MODULE :
Power Supply Input Voltage V
Permissive Power Input Ripple V
I
LCD-MOSAIC
LCD
LCD
4.5 5.0 5.5 Vdc
-- 0.3 V2
-720
940
(1070@75Hz)
mA 1, 3
Power Supply Input Current
I
LCD-BLACK
Power Consumption P
Inrush current I
LCD
RUSH
- 900
- 3.60 4.70 Watt 1, 3
- - 3.0 A 1, 5
1170
(1365@75Hz)
mA 1, 4
Note :
1. The specified characteristics perform under the V
LCD=5.0V, 25 ± 2C, f
2. Permissive Power Ripple should be measured under V
(frame frequency)=Max condition and At that time,
f
V
LCD=5.0V, 25 ± 2C,
=60Hz condition.
V
we recommend the bandwidth configuration of oscilloscope is to be under 20MHz. (See FIG.3)
3. Mosaic pattern(8 x 6) is displayed and f
is the frame frequency. (See FIG.3)
V
4. Input current is specified at the maximum current pattern.
5. The duration of Inrush current is about 2ms and rising time of power Input is 500us ± 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. LED Bar ELECTRICAL CHARACTERISTICS
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LM185WH2
Liquid Crystal Display
Product Specification
Values
Parameter Symbol Condition
Min. Typ. Max.
LED : 1
LED String Current Is - 60 65 mA 2
LED String Voltage Vs - 51.2 56 V 3
Power Consumption PBar - 9.22 10.08 Watt 4,6
LED Life Time LED_LT 30,000 - - Hrs 5
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.
Please control feedback current of each string individually to compensate the current variation
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.
Unit
Note
s
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 and Bar voltage at typical 60mA 100% duty current.
4. The specified power consumption is input LED bar power consumption at typical 60 mA 100%
duty current.
5. The life 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 ± 2C.
6. The LED bar power consumption shown above does not include loss of external driver.
The used LED bar current is the LED typical current.
Min Power Consumption is calculated with PBar = Vs(Min.) x Is(Typ.) x Nstring
Max Power Consumption is calculated with PBar = Vbar(Max.) x Is(Typ) x Nstring
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3-2. Interface connections
LCD Connector(CN1): GT103-30S-HF15-E2500(LSM) or IS100-L30O-C23 (UJU)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent
Table 4. Module connector(CN1) pin configuration
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LM185WH2
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
NC
PWM_OUT
NC
GND
RX0RX0+
GND
RX1RX1+
GND
RX2RX2+
GND
RXCLKRXCLK+
GND
RX3RX3+
GND
NC
NC
NC
GND
GND
GND
LCD
V
VLCD
VLCD
VLCD
VLCD
No Connection (For LCD internal use only.)
Reference signal for inverter control
No Connection (For LCD internal use only.)
Ground
Minus signal of channel 0 (LVDS)
Plus signal of channel 0 (LVDS)
Ground
Minus signal of channel 1 (LVDS)
Plus signal of channel 1 (LVDS)
Ground
Minus signal of channel 2 (LVDS)
Plus signal of channel 2 (LVDS)
Ground
Minus signal of clock channel (LVDS)
Plus signal of clock channel (LVDS)
Ground
Minus signal of channel 3 (LVDS)
Plus signal of channel 3 (LVDS)
Ground
No Connection (For LCD internal use only.)
No Connection (For LCD internal use only.)
No Connection (For LCD internal use only.)
Ground
Ground
Ground
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)
Power Supply (5.0V)
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FIG. 4 Connector diagram
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LM185WH2
Liquid Crystal Display
Product Specification
GT103-30S-HF15-E2500 (LSM)
#1 #30
signal pairs
Notes:
Power(5V)
PWM signal
#1 #30
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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Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION
The LED interface connector is a model (10)FH-SM1-GAN (LF)-(SN) manufactured by JST.
The pin configuration for the connector is shown in the table below.
Pin Symbol Description Notes
1 NC No Connection
2 NC No Connection
3 FB3 Channel3 Current Feedback FB3
4 NC No Connection
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LM185WH2
Liquid Crystal Display
Product Specification
5 VLED LED Power Supply
6 VLED LED Power Supply
7 FB1 Channel1 Current Feedback FB1
8 FB2 Channel2 Current Feedback
9 NC No Connection
10 NC No Connection
FB2
PCB
1
10
LED
[ Figure 5 ] Backlight connector diagram
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