LB121S03

LB121S03 Liquid Crystal Display Product Specification SPECIFICATION FOR APPROVAL ( V ) Preliminary Specification ( ) Final Specification Title BUYER MODEL 12.1” SVGA TFT LCD SUPPLIER *MODEL Suffix LG.Philips LCD Co., Ltd. LB121S03 TL01 *When you obtain standard approval, please use the above model name without suffix SIGNATURE SIGNATURE DATE C. S. Kyoung / G.Manager / REVIEWED BY DATE / S. D. Jung / Manager PREPARED BY / H. Y. Park/ Project Leader Please return 1 copy for your confirmation with your signature and comments. Products Engineering Dept. LG. Philips LCD Co., Ltd Ver. 0.0 Feb. 27, 2006 1 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification Contents No COVER CONTENTS RECORD OF REVISIONS 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 A GENERAL DESCRIPTION ABSOLUTE MAXIMUM RATINGS ELECTRICAL SPECIFICATIONS ELECTRICAL CHARACTREISTICS INTERFACE CONNECTIONS SIGNAL TIMING SPECIFICATIONS SIGNAL TIMING WAVEFORMS COLOR INPUT DATA REFERNECE POWER SEQUENCE OPTICAL SFECIFICATIONS MECHANICAL CHARACTERISTICS RELIABLITY INTERNATIONAL STANDARDS SAFETY EMC PACKING DESIGNATION OF LOT MARK PACKING FORM PRECAUTIONS APPENDIX. INCOMING INSPECTION STANDARD 22 22 23 25 21 21 6 7 9 9 10 11 12 16 20 ITEM Page 1 2 3 4 5 Ver. 0.0 Feb. 27, 2006 2 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification RECORD OF REVISIONS Revision No Revision Date 0.0 Feb. 27. 2006 Page First Draft (Preliminary) Description Note Ver. 0.0 Feb. 27, 2006 3 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 1. General Description The LB121S03 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. This TFT-LCD has 12.1 inches diagonally measured active display area with SVGA resolution(600 vertical by 800 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 6-bit gray scale signal for each dot, thus, presenting a palette of more than 262,144 colors. The LB121S03 has been designed to apply the interface method that enables low power, high speed, low EMI. The LB121S03 is intended to support applications where thin thickness, low power are critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-pixels, the LB121S03 characteristics provide an excellent flat display for office automation products such as Notebook PC or etc. GND VBL CN2 LAMP1 CN1 LVDS & Timing Control Block R o w D ri v e r C i rc u i t Column Driver Circuit TFT-LCD (800 X 600) Power Block VBL GND CN3 LAMP2 General Features Active Screen Size Outline Dimension Pixel Pitch Pixel Format Color Depth Luminance, White Power Consumption Weight Display Operating Mode Surface Treatment 12.1 inches(30.75cm) diagonal 276(H) × 209(V) × 11(D) mm 0.3075 mm × 0.3075 mm 800 horiz. By 600 vert. Pixels RGB strip arrangement 6-bit, 262,144 colors 400 cd/m2(Typ.) 6.8 Watt(Typ.) 690 g (Max.) Transmissive mode, normally white Anti-glare treatment 4 / 23 Ver. 0.0 Feb. 27, 2006 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display 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 Parameter Symbol Min VCC TOP TST HOP HST -0.3 0 -30 10 10 Values Max 4.0 70 80 90 90 Vdc °C °C %RH %RH at 25 ± 5°C 1 1 1 1 Units Notes Power 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 60°C Max, and no condensation of water. 90% 60 60% 50 Wet Bulb Temperature [C] 40 H u m i d i ty [ (% )R H ] 40% 30 20 10 0 10% 10 20 30 40 50 60 70 80 Operation Storage -30 0 Dry Bulb Temperature [C] Ver. 0.0 Feb. 27, 2006 5 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 3. Electrical Specifications 3-1. Electrical Characteristics The LB121S03 requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and liquid crystal. The second 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 VBL IBL Vs 470(8.0mA) 3.0 fBL Ts PBL 40 50,000 515(6.0mA) 6.0 60 6.18 470(3.0mA) 8.0 800 1000 80 3 7.52 VRMS mARMS VRMS VRMS kHz Min Watt Hrs 5 6 7 8 2 3 4 VCC ICC Pc 3.0 3.3 190 0.6 3.6 270 0.9 Vdc mA Watt 1 1 Symbol Min Values Typ Max Unit Notes at 25 °C at 0 °C Operating Frequency Discharge Stabilization Time Power Consumption Life 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 your instrument. 1. VCC=3.3V, 25°C, f V (frame frequency) = 60Hz condition, whereas Mosaic pattern(Typ).,full black pattern(Max) is displayed. 2. The variance of the voltage is ± 10%. 3. The typical operating current is for the typical surface luminance (LWH) in optical characteristics. 4. The voltage above VS should be applied to the lamps for more than 1 second for start-up. Otherwise, the lamps may not be turned on. The used lamp current is the lamp typical current. Ver. 0.0 Feb. 27, 2006 6 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 5. 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 possible from the horizontal synchronous frequency and from its harmonics in order to prevent interference. 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 lamp power consumption shown above does not include loss of external inverter. The used lamp current is the lamp typical current. (2 Lamp) 8. The life time 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 ± 2°C. ∗ 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. * Asymmetry rate: Ip | I p – I –p | / Irms * 100% * Distortion rate I p (or I –p) / Irms I -p ∗ 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. Ver. 0.0 Feb. 27, 2006 7 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 3-2. Interface Connections This LCD employs two interface connections, a 20 pin connector is used for the module electronics interface and the other connector is used for the integral backlight system. The electronics interface connector is a model GT100-20P-LS-SMT manufactured by LS Cable. Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Symbol VCC VCC GND GND A1M A1P GND A2M A2P GND A3M A3P GND CLKM CLKP GND GND GND GND GND Description Power Supply, 3.3V Typ. Power Supply, 3.3V Typ. Ground Ground Negative LVDS differential data input Positive LVDS differential data input Ground Negative LVDS differential data input Positive LVDS differential data input Ground Negative LVDS differential data input Positive LVDS differential data input Ground Negative LVDS differential clock input Positive LVDS differential clock input Ground Ground Ground Ground Ground 2.2 Mating 2. Connector 1, Interface chips Notes 1.1 LCD : SW, SW0602_U(LCD Controller) including LVDS Receiver 1.2 System : THC63LVDM63A or Equivalent * Pin to Pin compatible with TI LVDS 2.1 LCD : GT100-20P-LS-SMT, LS Cable or Equivalent Discrete Wire type:DF19G-20S-1C(HIROSE) FPC type :DF19G-20S-1F(HIROSE) Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION (CN2, CN3) The backlight interface connector is a model BHR-03VS-1, manufactured by JST. The mating connector part number is SM02B(8.0)B-BHS-1-TB or equivalent. Pin 1 2 3 Symbol HV NC LV Description High Voltage (Pink color) Low Voltage (white color) Notes - Ver. 0.0 Feb. 27, 2006 8 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 3-3. Signal Timing Specifications This is the signal timing required at the input of the User connector. All of the interface signal timing should be satisfied with the following specifications and specifications of LVDS Tx/Rx for its proper operation. Table 5. TIMING TABLE ITEM DCLK Hsync Frequency Period Width Vsync Period Width Data Enable Horizontal back porch Horizontal front porch Vertical back porch Vertical front porch Symbol fCLK tHP tWH tVP tWV tHBP tHFP tVBP tVFP Min 37.0 990 12 606 1 30 30 2 3 Typ 38.5 1024 64 625 6 88 72 15 4 Max 40.0 1100 Unit MHz tCLK Note 120 730 tHP 24 120 tCLK 80 22 tHP 5 3-4. Signal Timing Waveforms Condition : VCC =3.3V High: 0.7VCC Data Enable, Hsync, Vsync Low: 0.3VCC DCLK tCLK 0.5 Vcc Hsync t WH tHBP Data Enable tHP tWHA tHFP tVP tWV Vsync tVBP tWVA tVFP Data Enable Ver. 0.0 Feb. 27, 2006 9 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 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 6-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 6. COLOR DATA REFERENCE Input Color Data Color RED MSB R5 R4 R3 0 1 0 0 0 1 1 1 0 0 0 1 0 0 0 1 1 1 0 0 … 1 1 0 0 1 1 0 0 1 1 0 0 … 0 0 0 0 0 0 0 0 0 0 0 0 … 0 0 0 0 0 0 0 0 0 0 00 00 0 0 0 0 0 0 0 0 0 0 0 0 01 01 00 00 1 1 0 0 1 1 0 0 … 0 0 0 0 01 01 1 1 1 1 1 1 0 0 1 1 0 0 00 10 00 00 0 0 0 0 0 0 0 0 … 1 1 0 0 1 1 0 0 00 10 00 00 0 0 0 0 0 0 0 0 … 1 1 1 1 0 1 GREEN LSB MSB LSB MSB G4 G3 0 0 1 0 1 0 1 1 0 0 0 0 1 0 1 0 1 1 0 0 … 0 0 0 0 0 0 0 0 00 00 00 10 0 0 0 0 G2 G1 0 0 1 0 1 0 1 1 0 0 0 0 1 0 1 0 1 1 0 0 G0 B5 00 00 10 01 11 01 10 11 00 00 B4 0 0 0 1 1 1 0 1 0 0 BLUE LSB B3 0 0 0 1 1 1 0 1 0 0 … 0 0 0 0 … 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 B2 0 0 0 1 1 1 0 1 0 0 B1 0 0 0 1 1 1 0 1 0 0 B0 0 0 0 1 1 1 0 1 0 0 R2 R1 R0 G5 0 1 0 0 0 1 1 1 0 0 0 1 0 0 0 1 1 1 0 0 00 10 01 00 01 10 11 11 00 10 Black Red Green Basic Color Blue Cyan Magenta Yellow White RED (00) RED (01) RED … RED (62) RED (63) GREEN (00) GREEN (01) GREEN ... GREEN (62) GREEN (63) BLUE (00) BLUE (01) BLUE … BLUE (62) BLUE (63) 0 1 0 0 0 1 1 1 0 0 Ver. 0.0 Feb. 27, 2006 10 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 3-6. Power Sequence 90% 90% 10% Power supply for LCD ( VCC) 10% 0V T1 T2 T5 T6 Valid data 10% 0V T3 T4 10% T7 Interface Signal (Tx) Power for Lamp OFF ON OFF Table 7. POWER SEQUENCE TABLE Parameter Min. T1 T2 T3 T4 T5 T6 T7 0 200 200 0 2 Value Typ. Max. 10 50 50 10 (ms) (ms) (ms) (ms) (ms) (ms) (s) Units Note) 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. 3. Lamp power must be turn on after power supply for LCD and interface signal are valid. Ver. 0.0 Feb. 27, 2006 11 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 4. Optical Specification Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 30 minutes in a dark environment at 25°C. The values specified are at an approximate distance 50cm from the LCD surface at a viewing angle of Φ and Θ equal to 0°. FIG. 1 presents additional information concerning the measurement equipment and method. FIG. 1 Optical Characteristic Measurement Equipment and Method Optical Stage(x,y) LCD Module Pritchard 880 or equivalent 50cm Table 8. OPTICAL CHARACTERISTICS Ta=25°C, VCC=3.3V, fV=60Hz, Dclk= 38.5MHz, VIN=3.3V, IL=6.0mA Parameter Contrast Ratio Surface Luminance, white Luminance Variation Response Time Rise Time Decay Time Color Coordinates RED GREEN BLUE WHITE Viewing Angle x axis, right(Φ=0°) x axis, left (Φ=180°) y axis, up (Φ=90°) y axis, down (Φ=270°) Ver. 0.0 Θr Θl Θu Θd 60 60 45 55 Feb. 27, 2006 65 65 50 60 degree degree degree degree 12 / 23 RX RY GX GY BX BY WX WY TrR TrD 10 15 20 30 ms ms Symbol CR LWH δ WHITE Min 400 300 Values Typ 500 400 1.25 MAx 1.45 Units Notes 1 2 3 4 cd/m2 0.571 0.314 0.302 0.508 0.117 0.143 0.310 0.316 0.601 0.344 0.332 0.538 0.147 0.173 0.340 0.346 0.631 0.374 0.362 0.568 0.177 0.203 0.370 0.376 5 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification Note) 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. For more information see FIG 1. 3. The variation in surface luminance , The Panel total variation (δ WHITE) is determined by measuring LN at each test position 1 through 5, and then dividing the maximum LN of 5 points luminance by minimum LN of 5 points luminance. For more information see FIG 2. δ WHITE = Maximum(L1,L2, … L5) / Minimum(L1,L2, … L5) 4. Response time is the time required for the display to transition from white to black (rise time, TrR) and from black to white(Decay Time, TrD). For additional information see FIG 3. 5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are d e t e r m i n e d 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 FIG 4. 6. Gray scale specification Gray Level L0 L7 L15 L23 L31 L39 L47 L55 L63 * f V=60Hz Luminance [%] (Typ) 0.2 0.8 4.0 10.5 19.5 33.0 52.0 75.0 100 Ver. 0.0 Feb. 27, 2006 13 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification FIG. 2 Luminance H H/2 H/4 V /4 V /2 L2 L3 V L1 Center Point H,V : ACTIVE AREA L4 L5 FIG. 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”. % 100 90 Optical Response 10 0 white TrR TrD white black Ver. 0.0 Feb. 27, 2006 14 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification FIG. 4 Viewing angle Normal Eye Y φ = 90 ° , Up φ = 180 ° , Left θ φ φ = 0° , Right φ = 270 ° , Down Ver. 0.0 Feb. 27, 2006 15 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 5. Mechanical Characteristics The contents provide general mechanical characteristics for the model LB121S03. In addition the figures in the next page are detailed mechanical drawing of the LCD. Horizontal Outline Dimension Vertical Depth Horizontal Bezel Area Vertical Horizontal Active Display Area Vertical Weight Surface Treatment 690g (Max.) 184.5 mm 276.0 ± 0.5mm 209.0 ± 0.5mm 11.0mm 249.05 ± 0.5mm 188.3 ± 0.5mm 246.0 mm Anti-glare treatment Ver. 0.0 Feb. 27, 2006 16 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification Note) Unit:[mm], General tolerance: ± 0.5mm Ver. 0.0 Feb. 27, 2006 17 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification Note) Unit:[mm], General tolerance: ± 0.5mm Ver. 0.0 Feb. 27, 2006 18 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 6. Reliability Environment test condition No. 1 2 3 4 5 6 Test Item High temperature storage test Low temperature storage test High temperature operation test Low temperature operation test Vibration test (non-operating) Shock test (non-operating) Ta= 80°C, 240h Ta= -30°C, 240h Ta= 70°C, 240h Ta= 0°C, 240h Sine wave, 10 ~ 500 ~ 10Hz, 1.5G, 0.37oct/min 3 axis, 30min/axis Half sine wave, 180G, 2ms one shock of each six faces(I.e. run 180G 6ms for all six faces) 0 ~ 10,000 feet (3,048m) 24Hr 0 ~ 40,000 feet (12,192m) 24Hr Conditions 7 Altitude operating storage / shipment { Result Evaluation Criteria } 1. Evaluation should be tested after storage at room temperature for 24 hours. 2. There should be no change which might affect the practical display function when the display test quality test is conducted under normal operating condition. Ver. 0.0 Feb. 27, 2006 19 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 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 Electro technical 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 Electrical 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 Interface Characteristics of Information Technology Equipment.“ International Special Committee on Radio Interference. c) EN 55022 “Limits and Methods of Measurement of Radio Interface Characteristics of Information Technology Equipment.“ European Committee for Electro technical Standardization.(CENELEC), 1998 Ver. 0.0 Feb. 27, 2006 20 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 8. Packing 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 : Inch D : Year E : Month F : Panel Code G : Factory 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 3. Panel Code Panel Code Mark P1 Factory 1 P2 Factory 2 P3 Factory 3 P4 Factory 4 P5 Factory 5 Hydis Panel H 4. Factory Code Factory Code Mark LPL Gumi K LPL Nanjing C Hee Sung D 5. Serial No Serial No. Mark 1 ~ 99,999 00001 ~ 99999 100,000 ~ A0001 ~ A9999, - - - - , Z9999 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 : 16 pcs b) Box Size : 425mm × 328mm × 350mm Ver. 0.0 Feb. 27, 2006 21 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 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 using holes arranged in four corners or four sides. (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 transparent protective plate to the surface in order to protect the polarizer. Transparent protective plate should have sufficient strength in order to the 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 polarizers with glass, tweezers or anything harder than HB pencil lead. 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 soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives used to attach front / rear polarizers. 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 mis-operation 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) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be done by system manufacturers. Grounding and shielding methods may be important to minimized the interference. Ver. 0.0 Feb. 27, 2006 22 / 23 PDF created with pdfFactory trial version www.pdffactory.com LB121S03 Liquid Crystal Display Product Specification 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 interface pin directly. 9-4. PRECAUTIONS 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°C and 35°C 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. 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 glue. If some stress is applied to rub the protection film against the polarizer during the time you peel off the film, the glue 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 glue still on the polarizer after the protection film is peeled off. (4) You can remove the glue easily. When the glue 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. 0.0 Feb. 27, 2006 23 / 23 PDF created with pdfFactory trial version www.pdffactory.com