LG Display LM181E1-J3MN Specification
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
(
) Preliminary Specification
( ) Final Specification
Title 18.1” SXGA TFT LCD
LM181E1-J3MN
BUYER GENERAL SUPPLIER LG.Philips LCD Co., Ltd.
MODEL *MODEL LM181E1
SUFFIX J3MN
*When you obtain standard approval,
please use the above model name without suffix.
SIGNATURE
/
/
/
DATE APPROVED BY
S.H. Kang / G.Manager
REVIEWED BY
B.G. Kim / Manager
J.T. Kim / Manager
PREPARED BY
E.S. Chang / Engineer
J.K. Choi / Engineer
DATE
Please return 1 copy for your confirmation
with your signature and comments.
Ver 0.4 October 31, 2000 Page 1/24
Product Engineering Dept.
LG.Philips LCD Co., Ltd.
LM181E1-J3MN
Liquid Crystal Display
Product Specification
CONTENTS
NO. ITEM Page
- COVER 1
-CONTENTS 2
- RECORD OF REVISION 3
1 GENERAL DESCRIPTION 4
2 MAXIMUM RATINGS 5
3 ELECTRICAL SPECIFICATIONS 6
3-1 ELECTRICAL CHARACTERISTICS 6
3-2 INTERFACE CONNECTION 7
3-3 SIGNAL TIMING SPECIFICATIONS 9
3-4 SIGNAL TIMING WAVE FORMS 10
3-5 COLOR INPUT DATA REFERENCE 11
3-6 POWER SEQUENCE 12
4 OPTICAL SPECIFICATIONS 13
5 MECHANICAL CHARACTERISTICS 15
6RELIABILITY 18
7 INTERNATIONAL STANDARDS 19
7-1 SAFETY 19
7-2 EMC 19
8 PACKING 20
8-1 DESIGNATION OF LOT MARK 20
8-2 PACKING FORM 20
9 PRECAUTIONS 21
APPENDIX 23
A-1 OPTICAL CHARACTERISTIC MEASUREMENT EQUIPMENT AND METHOD 23
A-2 LUMINANCE 23
A-3 RESPONSE TIME 23
A-4 VIEWING ANGLE 24
Ver 0.4 October 31, 2000 Page 2/24
Liquid Crystal Display
Product Specification
RECORDS OF REVISIONS
Version No Date Page DESCRIPTION
LM181E1-J3MN
0.1
0.2
0.3
0.4
July 28, 2000
Sept 08, 2000
Sept 18, 2000
Oct 31, 2000
p13
p14
p18
p12
p13
p14
p6
Preliminary
Changed the Gamma value : 2.1
2.7
Changed the Gray scale
Update the ESD Test conditions
Changed the power sequences
T
Min : -
2
T
Min : 100ms
4
T
Min : 50ms
6
0.01ms
0.01ms
0.01ms
Added the Cross ta lk
Update the Gray scale
Changed the established starting voltage at 0
1550
1500
Ver 0.4 October 31, 2000 Page 3/24
LM181E1-J3MN
Liquid Crystal Display
Product Specification
1. General Description
The LM181E1-J3MN is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode
Fluorescent Lamp(CCFL) back light system. The m atrix employs a-Si Thin F ilm Transistor as the active
element. It is a transmissive type display operating in the normally black mode. T his TFT -LCD has a 18.1
inch diagonally measured active display area with SXGA resolution(1024 vertic al by 1280 horizontal pixel
array). Each pixe l 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 s ignal
for each dot, thus, presenting a palette of more than 16,777,216 colors.
The LM181E1-J3MN has been designed to apply the interface method that enables low power, high
speed low EMI. FPD Link must be used as a LVDS(Low Voltage Differential Signaling) chip.
The LM181E1-J 3MN is intended to support applications where thin thic kness, wide viewing angle, low
power are critical factors and graphic dis plays are important. In c ombination with the vertical arrangement
of the sub-pixels, the LM181E1-J3MN characteristics provide an excellent flat panel display for office
automation products such as monitors.
G1
LVDS
pair #1
LVDS
pair #2
+12V
IV
AA
CN1
(21pin)
CN2
(5pin)
LVDS
#1
LVDS
#2
Power
Circuit
Block
RGB(F)
CLK,DTMG
HSYC,VSYNC
CLK
RGB(S)
Timing
Controller
RGB
Gate Driver circuit
TFT-LCD Panel
(1280 x RGB x 1024 pixels)
G1024
S1 S1280
CN3/4
Backlight Assembly(4CCFL)
CN5/6
General Features
The following are general feature of the model LM181E1-J3MN LCD;
Active screen size 18.1 inches(45.97cm) diagonal
Outline dimensions 412.5(H) 333.0(V) 22.5(D) mm (Typ.)
Pixel pitch 0.2805 mm 0.2805 mm
Pixel format 1280 horiz. By 1024 vert. pixels
RGB stripe arrangement
Color depth 8-bit, 16,777,216 colors
Luminance,White 200 cd/m
Power Consumption Total 29.16Watt,Typ.(6.6Watt @IV
Weight 2835g (Max.)
Display operating mode Transmissive mode, normally black
Surface treatments Hard coating(3H),
A
nti-glare treatment of the front polarizer
2
(Typ.)
,22.56Watt@200cd/m2 [Lamp])
AA
Source Driver Circuit
Ver 0.4 October 31, 2000 Page 4/24
LM181E1-J3MN
Liquid Crystal Display
Product Specification
2. 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
Values
Min. Max.
Units Notes
Power Input Voltage
Operating Temperature
Storage Temperature
IV
T
T
OP
ST
AA
-0.3
0
0
0
-20
+13.2
+50
+50
+60
+60
V(DC)
Note: 1. Temperature at 5mm above display center of LCD Module.
Ta 40 : 95%RH Max
Ta 40 : Absolute Humidity shall be less than Ta = 40 95%RH .
These shall be no dew condensation.
2. Humidity Min. 5%RH, Max. 95%RH
3. Measured at the glass surface of LCD Module
4. Measured at the other surface of LCD Module
at 25
1,2
3
4
1,2
Ver 0.4 October 31, 2000 Page 5/24
LM181E1-J3MN
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LM181E1-J3MN requires two power inputs. One is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. The other input which powers the CCFL, is typically generated by
an inverter. The inverter is an external unit to the LCD.
Table 2. ELECTRICAL CHARACTERISTICS
Parameter Symbol
Min. Typ. Max.
MODULE:
Power Supply Input Voltage
Power Supply Input Current
Power Consumption
IV
AA
CC
I
C
P
11.2
-
-
LAMP
Operating Voltage
Operating Current
BL
V
BL
I
690(9mA)
3.0
Established Starting Voltage
at 25
at 0
Operating Frequency
Discharge Stabilization Time
Power Consumption(4CCFL’s)
Life Time
BL
f
S
T
BL
P
-
-
30
-
-
20,000
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 your instrument
Notes:1. The current draw and power consumption specified is for 12.0 Vdc at 25and fv at 60Hz.
(at 8-gray pattern displayed)
2. The variance of the voltage is 10%.
3. The output voltage at the transformer in the inverter must be high considering to the loss of the
ballast capacitor in the inverter.
4. 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.
Lamp frequency may produce interference with horizontal synchronous frequency and as a result
this may cause beat on the display. Therefore lamp frequency shall be as away as possible from
the horizontal synchronous frequency and from its harmonics in order to prevent interference.
5. The lamp power consumption shown above does not include loss of external inverter.
6. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.
T
is the time required for the brightness of the center of the lamp to be not less than 95%.
s
7. The life time is determined as the time at which brightness of lamp is 50% compare to that of
initial value at the typical lamp current on condition of continuous operating at 25 2.
Values
12.0
0.55
6.6
705(8mA)
8.0
-
60
-
22.56
30,000
12.6
0.9
10.8
940(3mA)
9.0
1250
1500
80
3
-
-
.
Units Notes
V(DC)
A
Watts
V
RMS
mA
V
RMS
V
RMS
kHz
Minutes
Watts
Hrs
1
1
2
3
4
6
5
7
Ver 0.4 October 31, 2000 Page 6/24
LM181E1-J3MN
Liquid Crystal Display
Product Specification
3-2. Interface Connections
Interface chip must be used LVDS, part No. DS90CF383MTD(Transmitter), DS90CF384MTD(Receiver)
made by National Semiconductor. Or used the compatible interface chips(TI : SN75LVDS83, Thine).
This LCD employs six interface connections. A 21-pin connector is used for the module electronics
interface. A 5-pin connector is used for the module power(+12V). Four 2-pin c onnectors are used for the
integral backlight system.
The electronics interface connector is a model GT121-21P-TD manufactured by LGC. The pin
configuration for the connector is shown in the table 3.
Table 3. MODULE CONNECTOR PIN CONFIGURATION (LVDS)
Pin Symbol Description Notes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
FR3P
FR3M
FCLKINP
FCLKINM
FR2P
FR2M
FR1P
FR1M
FR0P
FR0M
SR3P
SR3M
SCLKINP
SCLKINM
SR2P
SR2M
SR1P
SR1M
SR0P
SR0M
NC
Plus Signal of Odd Channel 3 (LVDS)
Minus Signal of Odd Channel 3 (LVDS)
Plus Signal of Odd Clock Channel (LVDS)
Minus Signal of Odd Clock Channel (LVDS)
Plus Signal of Odd Channel 2 (LVDS)
Minus Signal of Odd Channel 2 (LVDS)
Plus Signal of Odd Channel 1 (LVDS)
Minus Signal of Odd Channel 1 (LVDS)
Plus Signal of Odd Channel 0 (LVDS)
Minus Signal of Odd Channel 0 (LVDS)
Plus Signal of Even Channel 3 (LVDS)
Minus Signal of Even Channel 3 (LVDS)
Plus Signal of Even Clock Channel (LVDS)
Minus Signal of Even Clock Channel (LVDS)
Plus Signal of Even Channel 2 (LVDS)
Minus Signal of Even Channel 2 (LVDS)
Plus Signal of Even Channel 1 (LVDS)
Minus Signal of Even Channel 1 (LVDS)
Plus Signal of Even Channel 0 (LVDS)
Minus Signal of Even Channel 0 (LVDS)
Not Connect
First Data
Second Data
Top Side
Pin 5
Pin 1
Pin 21
CN2
Power
Connector
CN1
Pin 1
Bottom Side
Module Connector
Back side of LCD Module
Ver 0.4 October 31, 2000 Page 7/24
LM181E1-J3MN
Liquid Crystal Display
Product Specification
The module power connector is a model B5B-ZR-SM3-TF manufactured by JST. The pin configuration for
the connector is shown in the table 4.
Table 4. POWER CONNECTOR PIN CONFIGURATION
Pin Symbol Description Notes
1
2
3
4
5
GND
GND
GND
IV
AA
IV
AA
Supply voltage for LCD module
Supply voltage for LCD module
Ground
Ground
Ground
1
2
Notes: 1. All GND(ground) pins should be connected together and should also be connected
to the LCD’s metal frame.
2. All IV
(power input) pins should be connected together.
AA
The backlight interface connector is a model BHSR-02VS-1, manufactured by JST. The mating
connector part number is SM02B-BHS- 1 or equivalent. The pin c onf igur ation f or the c onnec tor is s hown
in the table 5.
Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION
Pin Symbol Description Notes
1
2
HV
LV
Lamp power input
Ground
1
2
Notes: 1. The input power terminal is colored pink or white. Ground pin color is white or black.
2. The lamp ground should be common with GND.
CN3,5
CN4,6
Pink
Black
White
White
Ver 0.4 October 31, 2000 Page 8/24
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