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LM181E1-H2MN Liquid Crystal Display Product Specification
SPECIFICATION FOR APPROVAL
( ) Preliminary Specification ( ) Final Specification
Title
BUYER MODEL
18.1" SXGA TFT LCD
SUPPLIER *MODEL SUFFIX LG.Philips LCD Co., Ltd. LM181E1 H2MN
*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 G.T. Kim / Manager PREPARED BY S.Y. Ahn / Engineer C.G. Kim / Engineer
DATE
/
/
Please return 1 copy for your confirmation with your signature and comments.
Product Engineering Dept. LG.Philips LCD Co., Ltd.
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LM181E1-H2MN Liquid Crystal Display Product Specification
CONTENTS
NO. 1 2 3 3-1 3-2 3-3 3-4 3-5 3-6 4 5 6 7 7-1 7-2 8 8-1 8-2 9 COVER CONTENTS RECORD OF REVISION GENERAL DESCRIPTION MAXIMUM RATINGS ELECTRICAL SPECIFICATIONS ELECTRICAL CHARACTERISTICS INTERFACE CONNECTION SIGNAL TIMING SPECIFICATIONS SIGNAL TIMING WAVE FORMS COLOR INPUT DATA REFERENCE POWER SEQUENCE OPTICAL SPECIFICATIONS MECHANICAL CHARACTERISTICS RELIABILITY INTERNATIONAL STANDARDS SAFETY EMC PACKING DESIGNATION OF LOT MARK PACKING FORM PRECAUTIONS APPENDIX A-1 A-2 A-3 A-4 OPTICAL CHARACTERISTIC MEASUREMENT EQUIPMENT AND METHOD LUMINANCE RESPONSE TIME VIEWING ANGLE ITEM Page 1 2 3 4 5 6 6 7 9 10 11 12 13 15 18 19 19 19 20 20 20 21 23 23 23 23 24
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LM181E1-H2MN Liquid Crystal Display Product Specification
RECORDS OF REVISIONS
Version No 0.1 0.11 Date Mar. 31, 2000 Apr. 20, 2000 Page p16 Preliminary Change the mechanical characteristics. Changed the B/L wire length : 80mm 140mm 0.2 0.3 May 17, 2000 July 5, 2000 p13 p13 p14 Fill the Color Coordinates. Correct the misprint. Fill the gray scale. DESCRIPTION
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LM181E1-H2MN Liquid Crystal Display Product Specification
1. General Description
The LM181E1-H2MN is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp(CCFL) back light system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally black mode. This TFT-LCD has a 18.1 inch diagonally measured active display area with SXGA resolution(1024 vertical by 1280 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 16,777,216 colors. The LM181E1-H2MN 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-H2MN 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 LM181E1-H2MN characteristics provide an excellent flat panel display for office automation products such as monitors.
G1
LVDS pair #1
CN1
(21pin)
LVDS #1
RGB(F)
CLK,DTMG HSYC,VSYNC CLK
Gate Driver circuit
Timing Controller
TFT-LCD Panel
(1280 x RGB x 1024 pixels)
LVDS pair #2
LVDS #2
RGB(S)
G1024
RGB +12V IVAA
CN2
(5pin)
S1
Source Driver Circuit
S1280
Power Circuit Block CN3/4
Backlight Assembly(4CCFL)
CN5/6
General Features
The following are general feature of the model LM181E1-H2MN LCD; Active screen size Outline dimensions Pixel pitch Pixel format Color depth Luminance,White Power Consumption Weight Display operating mode Surface treatments 18.1 inches(45.97cm) diagonal 412.5(H) x 333.0(V) x 22.5(D) mm (Typ.) 0.2805 mm x 0.2805 mm 1280 horiz. By 1024 vert. Pixels RGB stripe arrangement 8-bit, 16,777,216 colors 2 200 cd/m (Typ.) 2 Total 29.16Watt,Typ.(6.6Watt @IVAA,22.56Watt@200cd/m [Lamp]) 2835 (Max.) Transmissive mode, normally black Hard coating(3H), Anti-glare treatment of the front polarizer
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LM181E1-H2MN 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 Power Input Voltage Operating Temperature Storage Temperature symbol IVAA TOP TST Values Min. -0.3 0 -10 Max. +13.2 +50 +60 Units V(DC) Notes at 25 1,2 1,2
Note: 1. Temperature at 5mm above display center of LCD Module. Ta 40 : 90%RH Max Ta 50 : Absolute Humidity shall be less than Ta = 40 90%RH . These shall be no dew condensation. 2. Humidity Min. 5%RH, Max. 90%RH
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LM181E1-H2MN Liquid Crystal Display Product Specification
3. Electrical Specifications 3-1. Electrical Characteristics
The LM181E1-H2MN 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 MODULE: Power Supply Input Voltage Power Supply Input Current Power Consumption LAMP Operating Voltage Operating Current Established Starting Voltage at 25 at 0 Operating Frequency Discharge Stabilization Time Power Consumption(4CCFL's) Life Time Symbol IVAA ICC Pc VBL IBL Min. 11.2 Values Typ. 12.0 0.55 6.6 Max. 12.6 0.9 10.8 Units V(DC) A Watts Notes
1 1
690(9mA) 705(8mA) 940(3mA) 3.0 8.0 9.0 30 20,000 1250 1550 80 3 -
VRMS mA VRMS VRMS kHz Minutes Watts Hrs
2
3 4 6 5 7
fBL TS PBL
60 22.56 -
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 25 and 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%. Ts is the time required for the brightness of the center of the lamp to be not less than 95%. 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 .
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LM181E1-H2MN 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 connectors 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. Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 MODULE CONNECTOR PIN CONFIGURATION (LVDS) Symbol Description FR3P Plus Signal of Odd Channel 3 (LVDS) FR3M Minus Signal of Odd Channel 3 (LVDS) FCLKINP Plus Signal of Odd Clock Channel (LVDS) FCLKINM Minus Signal of Odd Clock Channel (LVDS) FR2P Plus Signal of Odd Channel 2 (LVDS) FR2M Minus Signal of Odd Channel 2 (LVDS) FR1P Plus Signal of Odd Channel 1 (LVDS) FR1M Minus Signal of Odd Channel 1 (LVDS) FR0P Plus Signal of Odd Channel 0 (LVDS) FR0M Minus Signal of Odd Channel 0 (LVDS) SR3P Plus Signal of Even Channel 3 (LVDS) SR3M Minus Signal of Even Channel 3 (LVDS) SCLKINP Plus Signal of Even Clock Channel (LVDS) SCLKINM Minus Signal of Even Clock Channel (LVDS) SR2P Plus Signal of Even Channel 2 (LVDS) SR2M Minus Signal of Even Channel 2 (LVDS) SR1P Plus Signal of Even Channel 1 (LVDS) SR1M Minus Signal of Even Channel 1 (LVDS) SR0P Plus Signal of Even Channel 0 (LVDS) SR0M Minus Signal of Even Channel 0 (LVDS) NC Not Connect
Notes
First Data
Second Data
Top Side a
Pin 5 Pin 1 Pin 21 Pin 1
CN2 Power Connector CN1 Module Connector
Bottom Side
Back side of LCD Module
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LM181E1-H2MN 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 1 Ground GND 2 Ground GND 3 Ground GND 4 Supply voltage for LCD module IVAA IVAA 5 Supply voltage for LCD module Notes: 1. All GND(ground) pins should be connected together and to Vss which should also be connected to the LCD's metal frame. 2. All IVAA(power input) pins should be connected together. Notes 1
2
The backlight interface connector is a model BHSR-02VS-1, manufactured by JST. The mating connector part number is SM02B-BHSS-1 or equivalent. The pin configuration for the connector is shown in the table 5. Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION Pin Symbol Description Notes 1 HV Lamp power input 1 2 LV Ground 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.
Pink CN3,5 Black
White CN4,6 White
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LM181E1-H2MN Liquid Crystal Display Product Specification
3-3. Signal Timing Specification
This is the signal timing required at the input of the LVDS Transmitter. All of the interface signal timing should be satisfied with the following specifications for it's proper operation.
Table 6. Timing Table ITEM Dclk Hsync Width-Active Period Vsync Period Width-Active Horizontal Back Porch Horizontal Active DE ( Data Enable ) Horizontal Front Porch Vertical Back Porch Vertical Active Vertical Front Porch tVFP 1 Note 1. Two pixel data are sampled at the same time.
Pixel 0,0 Pixel 0,1 pixel 1,0 pixel 1,1 pixel 2,0 pixel 2,1 pixel 3,0 pixel 3,1 pixel 1278,0 pixel 1278,1 pixel 1279,0 pixel 1279,1
SYMBOL Period Period tCLK tHP tWH tVP tVP tWV tHBP tHFP tVBP -
MIN. 760 8 1032 2 12 8 1 -
TYP. 18.52 844 56 16.67 1066 3 124 640 24 38 1024
MAX. 928 240 1097 24 -
UNIT ns tCLK
ms
NOTE 1
tHP
tCLK
tHP
Pixel 0,1023
pixel 1,1023
pixel 2,1023
pixel 3,1023
pixel 1278,1023
pixel 1279,1023
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LM181E1-H2MN Liquid Crystal Display Product Specification
3-4. Signal Timing Wave Form
0.7Vcc Hsync, Vsync, DE, DATA 0.3Vcc
tCLK 0.5VCC
DCLK VALID DATA INVALID First DATA VALID DATA INVALID Second DATA
pixel 1,0 pixel 3,0 pixel 0,0 pixel 2,0
INVALID
INVALID
DE(Data Enable)
HSync
tHP tWH tHBP tHFP
DE tVP tWV VSync tVBP tVFP
DE
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LM181E1-H2MN Liquid Crystal Display Product Specification
3-5. Color Input Data Reference
The brightness of each primary color(red, green and blue) is based on the 8-bit gray scale data input for the color; the higher the binary input, the brighter the color. The table below provides a reference for color versus data input. Table 7. COLOR DATA REFERENCE
Color Black Red(255) Green(255) Basic Blue(255) Colors Cyan Magenta Yellow White Red(000) Dark Red(001) Red(002) Red Red(253) Red(254) Red(255) Bright Green(000)Dark Green(001) Green(002) Green(253) Green(254) Green(255)Bright Blue(000) Dark Blue(001) Blue(002) Blue(253) Blue(254) Blue(255) Bright R7 0 1 0 0 0 1 1 1 0 0 0 : 1 1 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 Red MSB R6 R5 R4 000 111 000 000 000 111 111 111 000 000 000 ::: 111 111 111 000 000 000 ::: 000 000 000 000 000 000 ::: 000 000 000 R3 0 1 0 0 0 1 1 1 0 0 0 : 1 1 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 LSB R2 R1 00 11 00 00 00 11 11 11 00 00 01 :: 10 11 11 00 00 00 :: 00 00 00 00 00 00 :: 00 00 00 R0 0 1 0 0 0 1 1 1 0 1 0 : 1 0 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 G7 0 0 1 0 1 0 1 1 0 0 0 : 0 0 0 0 0 0 : 1 1 1 0 0 0 : 0 0 0 Input Color Data Green MSB LSB G6 G5 G4 G3 G2 G1 000000 000000 111111 000000 111111 000000 111111 111111 000000 000000 000000 :::::: 000000 000000 000000 000000 000000 000001 :::::: 111110 111111 111111 000000 000000 000000 :::::: 000000 000000 000000 Blue G0 0 0 1 0 1 0 1 1 0 0 0 : 0 0 0 0 1 0 : 1 0 1 0 0 0 : 0 0 0 B7 0 0 0 1 1 1 0 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 1 1 1 MSB B6 B5 00 00 00 11 11 11 00 11 00 00 00 :: 00 00 00 00 00 00 :: 00 00 00 00 00 00 :: 11 11 11 B4 0 0 0 1 1 1 0 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 1 1 1 B3 0 0 0 1 1 1 0 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 1 1 1 LSB B2 B1 00 00 00 11 11 11 00 11 00 00 00 :: 00 00 00 00 00 00 :: 00 00 00 00 00 01 :: 10 11 11 B0 0 0 0 1 1 1 0 1 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 1 0 : 1 0 1
Green
Blue
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LM181E1-H2MN Liquid Crystal Display Product Specification
3-6. Power Sequences
Interface Signal, Vi (Signal of Transmitter)
Valid Data
T1 90% Power Supply For LCD 0V 10% 90%
T6
10%
T2 Power For Lamp Lamp "Off"
T3 Lamp "On"
T4
T5
T7
Lamp "Off"
Parameter T1 T2 T3 T4 T5 T6 T7
Min. 50 100 100 0.01 50 1
Values Typ. -
Max. 300 20 300 -
Units ms ms ms ms ms ms s
Notes: 1. Please avoid floating state of interface signal at invalid period. 2. When the interface signal is invalid, be sure to pull down the power supply for LCD VCC to 0V. Invalid input with IVAA for a long time, cause permanent damage to LCD panel. 3. Lamp power must be turn on after power supply for LCD and interface signal are valid.
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LM181E1-H2MN Liquid Crystal Display Product Specification
4. Optical Specifications
Optical characteristics are determined after the unit has been `ON' and stable for approximately 30 minutes in a dark environment at 25 . The values specified are at an approximate distance 50cm from the LCD surface at a viewing angle of and equal to 0. Appendix A -1 presents additional information concerning the measurement equipment and method.. Table 8. OPTICAL CHARACTERISTICS Parameter Contrast Ratio Surface Luminance, white Luminance Variation Response Time Rise Time Decay Time CIE Color Coordinates Red Green Blue White Symbol CR LWH
WHITE
Min. 200 170 0.554 0.295 0.272 0.516 0.126 0.113 0.283 0.299 +60 -60 +60 -60
Values Typ. 250 200 20 30 0.584 0.325 0.302 0.546 0.156 0.143 0.313 0.329 +70 -70 +70 -70 2.1
Max. 1.3 50 50 0.614 0.355 0.332 0.576 0.186 0.173 0.343 0.359 -
Units cd/m
2
Notes 1 2 3 4
Tr TrR TrD xR yR xG yG xB yB xW yW x x y y
msec
Viewing Angle x axis, right ( =0) x axis, left( =180) y axis, up( =90) y axis, down ( =270) Gamma Value(reference value)
Degree
5
6
Notes 1. Contrast Ratio (CR) is defined mathematically as : Surface Luminance with all white pixels Contrast Ratio = Surface Luminance with all black pixels 2. Surface luminance is the center point across the LCD surface 50cm from the surface with all pixels displaying white under the condition of IBL = 8.0 mArms. For more information see Appendix A - 2. 3. The variation in surface Luminance, WHITE is determined by measuring LON at each test position 1 through 5, and then dividing the maximum LON of 5 points luminance by minimum LON of 5 points luminance. For more information see Appendix A - 2. WHITE Maximum (LON1, LON2, ....LON5) / Minimum (LON1, LON2, ....LON5) 4. Response time is the time required for the display to transition from black to white (Rise Time, TrR) and from white to black (Decay Time, TrD). For additional information see Appendix A - 3.
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LM181E1-H2MN Liquid Crystal Display Product Specification
5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the LCD surface. For more information see Appendix A - 4 6.Gray scale specification is as following. Gray Level L0 L31 L63 L95 L127 L159 L191 L223 L255 Luminance (%)(typ) 0.35 0.75 2.8 9.0 18.7 32.1 52.3 74.6 100
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LM181E1-H2MN Liquid Crystal Display Product Specification
5. Mechanical Characteristics
The chart below provides general mechanical characteristics for the model LM181E1-H2MN LCD. In addition, the figure below is a detailed mechanical drawing of the LCD. Note that dimensions are given for reference purposes only.
Parameters Outside dimensions Horizontal Vertical Depth Bezel area Horizontal Vertical Active Display area Horizontal Vertical Weight Surface Treatment
Value 412.5 333.0 22.5 363.5 292.0 359.040 287.232 2835(max) Hard coating 3H. Anti-glare treatment of the front polarizer
unit
Notes
mm
-
mm
-
mm gram -
-
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LM181E1-H2MN Liquid Crystal Display Product Specification
< FRONT VIEW >
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< REAR VIEW >
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LM181E1-H2MN Liquid Crystal Display Product Specification
6. Reliability
- Environment test condition No. 1 2 3 4 5 6 7 Test ITEM High temperature storage test Low temperature storage test High temperature operation test Low temperature operation test Humidity Condition operation Humidity Condition storage Vibration test (non-operating) Shock test (non-operating) Altitude storage/shipment Ta = 60 240h Conditions
Ta = -10 240h Ta = 50 Ta = 0 50%RH 240h 240h
20%RH ~ 80%RH 5%RH ~ 90%RH TBD
8
TBD
9
0 - 40,000 feet (12192m)
{Result Evaluation Criteria} There should be no change which might affect the practical display function when the display quality test is conducted under normal operating condition.
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LM181E1-H2MN Liquid Crystal Display Product Specification
7. International Standards 7-1. Safety
a) UL 1950 Third Edition, Underwriters Laboratories, Inc. Jan. 28, 1995. Standard for Safety of Information Technology Equipment Including Electrical Business Equipment. b) CAN/CSA C22.2 No. 950-95 Third Edition, Canadian Standards Association, Jan. 28, 1995. Standard for Safety of Information Technology Equipment Including Electrical Business Equipment. c) EN 60950 : 1992 + A1 : 1993 + A2 : 1993 + A3 : 1995 + A4 : 1997 + A11 : 1997 IEC 950 : 1991 + A1 : 1992 + A2 : 1993 + A3 : 1995 + A4 : 1996 European Committee for Electrotechnical Standardization (CENELEC) EUROPEAN STANDARD for Safety of Information Technology Equipment Including Electrical Business Equipment.
7-2. EMC
a) ANSI C63.4 "Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz." American National Standards Institute(ANSI),1992. b) C.I.S.P.R "Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment." International Special Committee on Radio Interference (standards apply by CISPR22 callss B) c) EN 55022 "Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment." European Committee for Electrotechnical Standardization (CENELEC),1988
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LM181E1-H2MN Liquid Crystal Display Product Specification
8. Packaging 8-1. Designation of Lot Mark
a) Lot Mark A B C D E F G H I J K L
M
A, B ,C : SIZE D : YEAR E : MONTH F,G : PANEL CODE H : ASSEMBLY CODE I,J,K,L,M : SERIAL NO. Note : 1. YEAR YEAR Mark 97 7 98 8 99 9 2000 0 2001 1 2002 2 2003 3 2004 4 2005 5 2006 6 2007 7
2. MONTH MONTH Mark Jan. 1 Feb. 2 Mar. 3 Apr. 4 May 5 Jun. 6 Jul. 7 Aug. 8 Sep. 9 Oct. A Nov. B Dec.
C
b) Location of Lot Mark Serial NO. is printed on the label. The label is attached to the backside of the LCD module. This is subject to change without prior notice.
8-2. Packing Form
a) Package quantity in one box : 5 pcs b) Box Size : 524mmx301mmx444mm
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LM181E1-H2MN Liquid Crystal Display Product Specification
9.PRECAUTIONS
Please pay attention to the followings when you use this TFT/LCD module.
9.1 MOUNTING PRECAUTIONS
(1) You must mount a module user holes arranged in four corners. (2) You should consider the mounting structure so that uneven force (ex. twisted stress) is not applied to the module. And the case on which a module is mounted should have sufficient strength so that external force is not transmitted directly to the module. (3) Please attach the surface with a transparent protective plate in order to protect the polarizer LC cell. Transparent protective plate should have sufficient strength in order to resist external force. (4) You should adopt radiation structure to satisfy the temperature specification. (5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break by electro-chemical reaction. (6) Do not touch, push or rub the exposed polarizer with glass, tweezers or anything harder than HB pencil head And Please do not rub with dust clothes with chemical treatment. Do not touch the surface of polarizer for bare hand or greasy cloth. (Some cosmetics are detrimental to the polarizer.) (7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like chamois soaked with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives used to attach front / rear polarizer. Do not use acetone, toluene and alcohol because they cause chemical damage to the polarizer. (8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes deformations and color fading. (9) Do not open the case because inside circuits do not have sufficient strength.
9.2 OPERATING PRECAUTIONS
(1) The spike noise causes the malfunction of circuits. It should be lower than following voltage : V = 200mV (Over and under shoot voltage). (2) Response time depends on the temperature. (In lower temperature, it becomes longer.) (3) Brightness depends on the temperature. (In lower temperature, it becomes lower.) And in lower temperature, response time (required time that brightness is stable after turned on ) becomes longer. (4) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or electrical contacted parts. And after fading condensation, smear or spot will occur. (5) When fixed patterns are displayed for a long time, remnant image is likely to occur. (6) A module has high frequency circuit. If you need to shield the electromagnetic noise, please do co-work together.
9.3 ELECTROSTATIC DISCHARGE CONTROL
Since a module is composed of electronic circuits. It is not strong to electrostatic discharge. Make certain that treatment persons are connected to ground through wrist band etc. And don't touch I/F pin directly.
9.4 PRECAUTION FOR STRONG LIGHT EXPOSURE
Strong light exposure causes degradation of polarizer and color filter.
9.5 STORAGE
When storing modules as spares for a long time. The following precautions are necessary. (1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature between 5 and 35 at normal humidity. (2) The polarizer surface should not come in contact with any other object. It is recommended that they be stored in the container in which they were shipped. Ver 0.3 July 5, 2000
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http://www.alpha.fi
LM181E1-H2MN Liquid Crystal Display Product Specification
9.6 HANDLING PRECAUTIONS FOR PROTECTION FILM
(1) When the protection film is peeled off, static electricity is generated between the film and polarizer. This should be peeled off slowly and carefully by people who are electrically grounded and with well ion- blown equipment or in such a condition, etc. (2) The protection film is attached to the polarizer with a small amount of adhesive tape. If some stress is applied to rub the protection film against the polarizer during the time you peel off the film, the adhesive tape is apt to remain on the polarizer. Please carefully peel off the protection film without rubbing it against the polarizer. (3) When the module with protection film attached is stored for a long time, sometimes there remains a very small amount of adhesive tape still on the polarizer after the protection film is peeled off. (4) You can remove the adhesive easily. When the adhesive remains on the polarizer surface or its vestige is recognized, please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal- hexane.
Ver 0.3
July 5, 2000
Alpha Point Ltd. P.O. Box 41 00751 Helsinki, Finland
Page 22/24
Tel.: +358-9-34 64 34 1 Fax: +358-9-34 64 34 2
http://www.alpha.fi
LM181E1-H2MN Liquid Crystal Display Product Specification
APPENDIX A-1 Optical Characteristic Measurement Equipment and Method
Optical Stage(x,y)
LCD Module Field = 1 Prichard PR-880 or equivalent
500mm
A-2 Luminance Measurement
320 640 960 640
1 3 4
2
256 512 768 512
5

A-3 Response Time
The response time is defined as the following figure and shall be measured by switching the input signal for "black" and "white".
TrR
100 90
TrD
Optical Response
10 0
black
white
black
Ver 0.3
July 5, 2000
Alpha Point Ltd. P.O. Box 41 00751 Helsinki, Finland
Page 23/24
Tel.: +358-9-34 64 34 1 Fax: +358-9-34 64 34 2
http://www.alpha.fi
LM181E1-H2MN Liquid Crystal Display Product Specification
A-4 Viewing angle

= 90
(12:00)
= 0
z A
yu
= 180
(9:00)
xl
= 0
(3:00)
xr
TFT LCD MODULE
z'
yd
= 270
(6:00)
Ver 0.3
July 5, 2000
Alpha Point Ltd. P.O. Box 41 00751 Helsinki, Finland
Page 24/24
Tel.: +358-9-34 64 34 1 Fax: +358-9-34 64 34 2
http://www.alpha.fi

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