LG Display LM185WH1-TLH1 Specification
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( ) Preliminary Specification
) Final Specification
(
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LM185WH1
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
BUYER
MODEL
SIGNATURE DATE
/
/
HP
18.5” HD TFT LCDTitle
SUPPLIER LG Display Co., Ltd.
*MODEL LM185WH1
SUFFIX TLH1
*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.
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PREPARED BY
B.Y. KIM / Engineer
Product Engineering Dept.
LG Display Co., Ltd
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LM185WH1
Liquid Crystal Display
Product Specification
Contents
No
COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
1)
INTERFACE CONNECTIONS
2)
3)
LVDS characteristics
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
9
12
15
16
17
18
19
204
MECHANICAL CHARACTERISTICS
RELIABILITY
INTERNATIONAL STANDARDS
1)
SAFETY
2)
EMC
PACKING
1)
DESIGNATION OF LOT MARK
2)
PACKING FORM
255
276
287
28
28
298
29
29
30PRECAUTIONS9
30MOUNTING PRECAUTIONS1)
30OPERATING PRECAUTIONS2)
31ELECTROSTATIC DISCHARGE CONTROL3)
31PRECAUTIONS FOR STRONG LIGHT EXPOSURE4)
31STROAGE5)
31HANDLING PRECAUTIONS FOR PROTECTION FILM6)
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Revision No DescriptionDate Page
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LM185WH1
Liquid Crystal Display
Product Specification
Record of revisions
Ver 0.0
Ver 1.0
JAN.,26,2010
MAR.,03,2010
Preliminary Specifications
Final Specifications
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1. General description
LM185WH1-TLH1 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
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(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 LM185WH1-TLH1
characteristics provide an excellent flat panel display for office automation products such as
monitors.
FIG. 1 Block diagram
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LM185WH1
Liquid Crystal Display
Product Specification
RGB
Source driver circuit
S1366
LVDS
pair #1
S1
G1
Timing
controller
TFT-LCD Panel
CN1
LCD
V
Power circuit
block
+5V
CN2 (2pin)
CN3 (2pin)
General features
Active screen size 18.51 inches (470.1mm) diagonal
Outline Dimension 430.4(H) x 254.6(V) x 13.0(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
Color depth 16.7M colors
2
Luminance, white 200 cd/m
(Center1Point,typ)
(1366RGB768 pixels)
G768
Backlight assembly (2 CCFLs)
Viewing Angle (CR>10) R/L 90(Typ.), U/D 50(Typ.)
Power Consumption
Total 14.31W(Typ.), (3.60 W@V
, 10.71W@IBL= 8.5 mA)
LCD
Weight 1370g(Typ)
Display operating mode Transmissive mode, Normally White
Surface treatments
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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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LM185WH1
Liquid Crystal Display
Product Specification
Values
Parameter Notes
Symbol
Units
MaxMin
Power Supply Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity
LCD
OP
ST
OP
ST
C500T
C60-20T
%RH9010H
%RH9010H
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%
Wet Bulb
Temperature []
20
10
0
30
40
50
40%
10%
Humidity
[(%)RH]
Storage
Operation
At 25Vdc+6.0-0.3V
1
10 20 30 40 50 60 70 800-20
Dry Bulb Temperature []
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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 CCFL/Backlight, is typically
generated by an inverter. The inverter is an external unit to the LCDs.
Table 2. Electrical characteristics
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LM185WH1
Liquid Crystal Display
Product Specification
Parameter Symbol
Values
MaxTypMin
MODULE :
Power Supply Input Voltage
Permissive Power Input Ripple
Power Supply Input Current
Power Consumption
Inrush current
LCD
LCD
LCD-MOSAIC
I
LCD-BLACK
LCD
RUSH
Vdc5.55.04.5V
Note :
1. The specified current and power consumption are
under the V
whereas mosaic pattern(8 x 6) is displayed and f
LCD=5.0V, 25 ± 2C,f
=60Hz condition
V
is the frame frequency.
V
2. The current is specified at the maximum current pattern.
3. Permissive power ripple should be measured under VCC=5.0V, 25C, f
(frame frequency)=75Hz
V
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%.
FIG.3 pattern for Electrical characteristics
NotesUnit
3V0.3--V
1mA940720-I
2mA1170900-
1Watt4.703.60-P
4A3.0--I
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. Electrical characteristics
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LM185WH1
Liquid Crystal Display
Product Specification
Parameter Symbol
Values
NotesUnit
MaxTypMin
LAMP :
Operating Voltage
Operating Current
V
BL
BL
620
(9.0mA)
630
(8.5mA)
810
(2.5mA)
9.08.52.5I
RMS
RMS
1, 2V
1mA
1, 3VsEstablished Starting Voltage
at 25 C
at 0 C
Operating Frequency
Discharge Stabilization Time
Power Consumption
BL
S
BL
1100
1400
V
V
RMS
RMS
4kHz706040f
1, 5Min3--T
6Watt11.7810.71P
1, 7Hrs-50,000Life Time
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 ± 2C. The variance of the voltage is ± 10%.
3. The voltage above V
(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%.
is the time required for the brightness of the center of the lamp to be not less than 95%.
T
S
6. The lamp power consumption shown above does not include loss of external inverter.
The used lamp current is the lamp typical current. (P
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 ± 2C.
should be applied to the lamps for more than 1 second for start-up.
S
= VBLx IBLx N
BL
Lamp
)
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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.
I p
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Product Specification
* Asymmetry rate:
|I
p
–I–p|/ I
LM185WH1
Liquid Crystal Display
x 100%
rms
I -p
* Distortion rate
(or I–p)/ I
I
p
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 2 parallel lamps, input current and voltage
wave form should be synchronized
rms
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3-2. Interface connections
LCD connector(CN1) : GT103-30S-H23-D (LGM), IS100-L30B-C23 (UJU)
Mating connector : FI-X30H and FI-X30HL (JAE) or Equivalent
Table 4. Module connector(CN1) pin configuration
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LM185WH1
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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LM185WH1
Liquid Crystal Display
Product Specification
GT103-30S-H23-D (LGM)
#1 #30
signal pairs
Note:
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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