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om .c 4U et he aS TO at : General .D w DATE : Sep. 13, 2002 w w SAMSUNG TFT-LCD SAMSUNG TFT-LCD PRELIMINARY NOTE : The information described in this SPEC is preliminary and can be changed without prior notice. om .c APPROVED BY : 4U PREPARED BY : Application Engineering 1 Group et he aS SAMSUNG ELECTRONICS CO., LTD. at .D w Page 1 / 24 Doc.No. Rev.No LTN154X1-L02 04-P00-G-020725 w w m o MODEL NO. :: LTN154X1-L02 MODEL NO. LTN154X1-L02 .c U t4 e e h S ta a .D w w w CONTENTS PRELIMINARY Record Of Revision General Description 1. Absolute Maximum Ratings 1.1 Absolute Ratings of Environment 1.2 Electrical Absolute Maximum Ratings 2. Optical Characteristics 3. Electrical Characteristics 3.1 TFT LCD Module 3.2 Back Light Unit 4. Block Diagram 4.1 TFT LCD Module 4.2 Back Light Unit -------------------( 3 ) -------------------( 4 ) -------------------( 5 ) -------------------( 7 ) - - - - - - - - - - - - - - - - - - - ( 11 ) - - - - - - - - - - - - - - - - - - - ( 14 ) 5. Input Terminal Pin Assignment - - - - - - - - - - - - - - - - - - - ( 15 ) 5.1 Input Signal & Power 5.2 LVDS Interface:Transmitter 5.3 Back Light Unit 5.4 Timing Diagrams of LVDS for Transmission 5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color. 5.6 Pixel Format 6. Interface Timing - - - - - - - - - - - - - - - - - - - ( 20 ) 6.1 Timing Parameters(DE MODE) 6.2 Timing Diagrams of interface Signal (DE MODE) 6.3 Power ON/OFF Sequence 7. Outline Dimension 8. General Precaution - - - - - - - - - - - - - - - - - - - ( 22 ) - - - - - - - - - - - - - - - - - - - ( 23 ) Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 2 / 24 REVISION HISTORY REVISION HISTORY Date Jul.25.2002. Rev.No. P00 Page ALL Summary LTN154X1-L02model was first issued PRELIMINARY Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 3 / 24 GENERAL DESCRIPTION DESCRIPTION PRELIMINARY LTN154X1 is a color active matrix TFT (Thin Film Transistor) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching devices. This model is composed of a TFT LCD panel, a driver circuit, a back-light system. The resolution of a 15.4 contains 1280 x 800 pixels and can display up to 262,144colors. 6 o'clock direction is the optimum viewing angle. FEATURES * Thin and light weight * High contrast ratio, high aperture structure * Super Wide Viewing Angle * Fast Response Time * Wide XGA (1280x800 pixels) resolution * Low power consumption * Single CCFL * DE(Data enable) only mode * 3.3V LVDS Interface * Onboard EEDID chip APPLICATIONS * Notebook PC and desktop monitors * Display terminals for AV application products * Monitors for Industrial machine * If the usage of this product is not for PC application, but for others, please contact SEC GENERAL INFORMATION ITEM Display area Driver element Display colors Number of pixel Pixel arrangement Pixel pitch Display Mode Surface treatment SPECIFICATION 331.2max(H) x 207.0max(V) (15.4 diagonal ) a-Si TFT active matrix 262,144 1280 X RGB(3) X 800 RGB vertical stripe 0.25875(H) x 0.25875 (V) Normally white HAZE (25), HARD-COATING (3H) mm pixels UNIT mm NOTE Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 4 / 24 PRELIMINARY Mechanical Information ITEM Horizontal (H) Module size Vertical (V) Thickness (T) Weight (g) MIN. 343.5 221.5 TYP. 344.0 222.0 MAX. 344.5 222.5 6.5 610 PMMA LCD module only NOTE 1. ABSOLUTE MAXIMUM RATINGS 1.1 ENVIRONMENTAL ABSOLUTE RATINGS ITEM Storage temperature Operating temperature (Temperature of glass surface) Shock ( Non-operating ) SYMBOL TSTG MIN. -25 MAX. 65 UNIT C C G G NOTE (1) (1) (2),(4) TOPR Snop Vnop 0 - 50 220 1. 5 Vibration (Non-operating) (3),(4) Note (1) Temperature and relative humidity range are shown in the figure below. 90 % RH Max. ( 40C Ta) Maximum wet - bulb temperature at 39C or less. (Ta > 40C) No condensation. 100 90 Relative Humidity ( %RH) 80 60 40 20 5 Operating Range Storage Range 0 20 40 60 80 0 -40 -20 Temperature (OC) (2) 220G, 2ms, Half sine wave, one time for X, Y, Z axis (3) 10 ~ 300 ~ 10 Hz, Sweep rate 10min, 30min for X, Y,Z axis (4) At testing Vibration and Shock, the fixture in holding the Module to be tested have to be hard and rigid enough so that the Module would not be twisted or bent by the fixture. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 5 / 24 PRELIMINARY 1.2 ELECTRICAL ABSOLUTE RATINGS (1) TFT LCD MODULE ITEM Power Supply Voltage Logic Input Voltage NOTE (1) Within Ta = 25 2 C SYMBOL VDD VIN MIN. Vss -0.3 Vss -0.3 MAX. 3.8 VDD+0.3 UNIT V V VDD =3.3, Vss=GND= 0V NOTE (1) (1) (2) BACK-LIGHT UNIT ITEM Lamp current Lamp frequency SYMBOL IL FL MIN. 2.0 50 MAX. 7.0 80 UNIT. mArms KHz Ta = 25 2 C NOTE (1) (1) NOTE (1) Permanent damage to the device may occur if maximum values are exceeded. Functional operation should be restricted to the conditions described under Normal Operating Conditions. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 6 / 24 2. OPTICAL CHARACTERISTICS PRELIMINARY The following items are measured under stable conditions. The optical characteristics should be measured in a dark room or equivalent state with the methods shown in Note (7). Measuring equipment : TOPCON BM-5A * Ta = 25 2C , VDD=3.3V, fv= 60Hz, fDCLK=68.9MHz, IL = 6.0mA ITEM Contrast Ratio (5 Points) Response Time at Ta Rising Falling SYMBOL CONDITION CR TR TF YL,AVE RX RY Green Color Chromaticity ( CIE ) Blue BY WX White WY R Hor. Viewing Angle Ver. 13 Points White Variation L H L L CR( at center point) 10 0.299 0.329 65 65 50 50 0.359 Degrees 1.8 (5),(6),(7) (1) (0.125) 0.283 (0.155) 0.313 (0.185) 0.343 GX GY BX = 0, =0 MIN. 170 (0.550) (0.310) (0.280) (0.520) (0.125) TYP. 300 10 15 185 (0.580) (0.340) (0.310) (0.550) (0.155) MAX. 15 20 (0.610) (0.370) (0.340) (0.580) PR650 (0.185) cd/m2 (4) at 6.0mA msec UNIT NOTE (1), (2), (7) (1), (3) Average Luminance of White (5 Points) Red Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 7 / 24 PRELIMINARY Note 1) Definition of Viewing Angle : Normal Line = 0o, = 0o L R L =90o L H 12 O'clock direction H = 90o x y 6 O' clock direction L= 90o y' x' R =90o Note 2) Definition of Contrast Ratio (CR) = Luminance of all pixel white Luminance of all pixel dark CR1 + CR2 + CR3 + CR4 + CR5 CR = 5 POINTS : 1, 2 2 , 3 , 4 , 5 at FIGURE OF NOTE 6) Note 3) Definition of Response time : Display data White(TFT OFF) Black(TFT ON) White(TFT OFF) TR Optical Response 100% 90% TF 10% 0% Time Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 8 / 24 PRELIMINARY Note 4) Definition of Average Luminance of White : measure the luminance of white at 5 points. 320 Average Luminance of White ( Y L,AVE ) 1 YL1 + YL2 + YL3 + YL4 + YL5 Y L,AVE = 5 3 5 400 2 200 640 960 4 600 Note 5) The luminance uniformity of 13 points is defined by dividing the maximum luminance values by the minimum test point luminance 13 Points Luminance Uniformity = Max Luminance (13 pts, 1~13) Min Luminance (13 pts, 1~13) Note 6) Luminance uniformity measurement performed at the 13 points and 5 points as defined in the drawing below. 320 6 10mm 1 640 7 2 960 8 200 VIEW AREA 9 5 10 400 : test point 3 10mm 11 10mm 12 4 13 600 10mm Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 9 / 24 PRELIMINARY Note 7) After stabilizing and leaving the panel alone at a given temperature for 30 minutes, the measurement should be executed. Measurement should be executed in a stable, windless,and dark room. 30 minutes after lighting the back-light. This should be measured in the center of screen. Lamp current : 6.0 mA Environment condition : Ta = 25 2 C Photodetector ( TOPCON BM-5A) Field = 2 o 40 cm TFT-LCD module LCD panel Center of the screen Optical characteristics measurement setup Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 10 / 24 3. ELECTRICAL CHARACTERISTICS 3.1 TFT LCD MODULE PRELIMINARY Ta = 25 2 C ITEM Voltage of Power Supply Differential Input Voltage for LVDS Receiver Threshold High Low SYMBOL VDD VIH VIL fv fH fDCLK IRUSH White MIN 3.0 -100 - TYP 3.3 60 48.96 68.9 TBD TBD TBD MAX 3.6 +100 (1.5) TBD UNIT V mV NOTE (1) mV Hz KHz MHz A mA mA mA (4) (2),(3)*a (2),(3)*b (2),(3)*c Vsync Frequency Hsync Frequency Main Frequency Rush Current Electric Circuit Power Consumption Mosaic Maximum Pattern IDD - Note (1) Condition : VCM=+1.2V(Common mode Voltage) (2) fV=60Hz, fDCLK = 68.9 MHz, Vdd = 3.3V , DC Current. (3) Power dissipation check pattern *a) White Pattern VIEW AREA Display Brightest Gray Level *b)Mosaic Pattern Display Darkest Gray Level Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 11 / 24 PRELIMINARY *c) Maximum Power pattern : 1dot inversion (4) Rush current measurement condition 3.3V M1 2SK1059 VDD ( LCD R1 47K FUSE C1 1uF INPUT) R2 CONTROL SIGNAL (HIGH to LOW) 1K M2 2SK1399 12V R3 47K C2 C3 1uF 10000pF VDD rising time is 470us 0.9VDD 3.3V 0.1VDD GND 470us Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 12 / 24 3.2 BACK-LIGHT UNIT PRELIMINARY The backlight system is an edge - lighting type with a single CCFT ( Cold Cathode Fluorescent Tube ). The characteristics of a single lamp are shown in the following tables. INVERTER : SIC 130T(SEMCO, fL=60KHz) ITEM Lamp Current Lamp Voltage Frequency Power Consumption Operating Life Time Startup Voltage Ta = 25 2C TYP TBD (60) TBD MAX (6.0) (65) TBD TBD 0.5 UNIT mArms Vrms KHz W Hr Vrms Vrms NOTE (1) IL=6.0mA (2) (3) IL=6.0mA (4) 25C 0C (5) SYMB IL VL fL PL Hr VS MIN (3.0) (50) 10000 - Lamp Startup Time VS - - sec Note) The waveform of the inverter output voltage must be area symmetric and the design of the inverter must have specifications for the modularized lamp. The performance of the back-light, for example life time or brightness, is much influenced by the characteristics of the DC-AC inverter for the lamp. 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 that a poor lighting caused by the mismatch of the back-light and the inverter(miss lighting, flicker, etc.) never occur. When you confirm it, the module should be operated in the same condition as it is installed in your instrument. Note (1) Lamp current is measured with a high frequency current meter as shown below. LCD MODULE 1 2 HOT : Pink COLD : WHITE A INVERTER SIC 130T No 2 Pin is VLOW. (2) Lamp frequency may produce interference with horizontal synchronous frequency and this may cause line flow on the display. Therefore lamp frequency should be detached from the horizontal synchronous frequency and its harmonics as far as possible in order to avoid interference. (3) refer to IL X VL to calculate. (4) Life time (Hr) of a lamp can be defined as the time in which it continues to operate under the condition Ta = 25 2C and IL = 6.0 mArms until one of the following event occurs. 1. When the brightness becomes 50% or lower than it's original. 2. When the Effective ignition length becomes 80% or lower than it's original value. (Effective ignition length is defined as an area that has less than 70% brightness compared to the brightness in the center point.) (5) The voltage above this value should be applied to the lamp for more than 1 second to startup Otherwise the lamp may not be turned on. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 13 / 24 PRELIMINARY 4. BLOCK DIAGRAM 4.1 TFT LCD Module LVDS RSDS UserConnector LVDS Receiver & Timing Controller Source Driver ICs 15.4"WXGA TFT-LCD Panel DC-DC Converter Gamma Generator Video Signal Control Signal VCOM Gamma DVDD AVDD Von/Voff VCOM Generator SOURCE PCB Gate Driver ICs 4.2 BACKLIGHT UNIT Reflector 1 HOT (PINK) LAMP 2 COLD(WHITE) Note) The output of the inverter may change according to the material of the reflector. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 14 / 24 5. INPUT TERMINAL PIN ASSIGNMENT PIN# 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 Doc.No. SYMBOL VSS VDD VDD V EEDID NC Clk EEDID DATA EEDID RxIN0RxIN0+ VSS RxIN1RxIN1+ VSS RxIN2RxIN2+ VSS ClkINClkIN+ VSS NC NC NC NC NC NC NC NC NC NC NC LTN154X1-L02 Ground Power Supply, 3.3 V (typical ) Power Supply, 3.3 V (typical) DDC 3.3V power No connect DDC Clock DDC Data LVDS differential data input LVDS differential data input Ground LVDS differential data input LVDS differential data input Ground LVDS differential data input LVDS differential data input Ground LVDS differential clock input LVDS differential clock input Ground No connect No connect No connect No connect No connect No connect No connect No connect No connect No connect No connect Rev.No 04-P00-G-020725 FUNCTION PRELIMINARY POLARITY REMARK 5.1. Input Display Signal & Power (Input Connector : JAE, FI-XB30SL-HF10) Negative Positive R0-R5, G0 Negative Positive G1-G5, B0-B1 Negative Positive B2-B5, HS,VS,DE Negative Positive Page 15 / 24 5.2 LVDS Interface Transmitter SN75LVDS86 or Compatible Pin No. 44 45 47 48 1 3 4 6 7 9 10 Name TxIN0 TxIN1 TxIN2 TxIN3 TxIN4 TxIN5 TxIN6 TxIN7 TxIN8 TxIN9 TxIN10 RGB Signal R0 R1 R2 R3 R4 R5 G0 G1 G2 G3 G4 Pin No. 12 13 15 16 18 19 20 22 23 25 26 Name TxIN11 TxIN12 TxIN13 TxIN14 TxIN15 TxIN16 TxIN17 TxIN18 TxIN19 TxIN20 PRELIMINARY RGB Signal G5 B0 B1 B2 B3 B4 B5 Hsync Vsync DE Clock TxCLK IN Graphics controller 18-bit RED0 RED1 RED2 RED3 RED4 RED5 GREEN0 GREEN1 GREEN2 GREEN3 GREEN4 GREEN5 BLUE0 BLUE1 BLUE2 BLUE3 BLUE4 BLUE5 Hsync Vsync Enable CLOCK SN75LVDS86 or Compatible TxIN0 TxOUT0TxIN1 TxIN2 TxIN3 TxOUT0+ TxIN4 TxIN5 TxOUT1TxIN6 TxIN7 TxIN8 TxOUT1+ TxIN9 TxIN10 TxIN11 TxOUT2TxIN12 TxIN13 TxOUT2+ TxIN14 TxIN15 TxIN16 TxCLKOUTTxIN17 TxIN18 TxIN19 TxCLKOUT+ TxIN20 TxClkIN 8 9 11 12 14 15 17 18 100 LXD01813 (LVDS+I/F IC) RxIN0- - RxIN0+ RxIN1- 100 - RxIN1+ 100 RxIN2- - RxIN2+ - RxCLKIN- 100 - RxCLKIN+ Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 16 / 24 PRELIMINARY 5.3 BACK LIGHT UNIT Connector : JST BHSR - 02VS -1 Mating Connector : JST SM02B-BHSS-1 Pin NO. 1 2 Symbol HOT COLD Color PINK WHITE Function High Voltage Low Voltage 5.4 Timing Diagrams of LVDS For Transmission T TxCLK OUT RxCLK IN T/7 Rx IN2 RxOUT20 RxOUT19 RxOUT18 RxOUT17 RxOUT16 RxOUT15 RxOUT14 DE Vsync Hsync B5 B4 B3 B2 Rx IN1 RxOUT13 B1 RxOUT12 B0 RxOUT11 G5 RxOUT10 G4 RxOUT9 G3 RxOUT8 G2 RxOUT7 G1 RxIN0 RxOUT6 G0 RxOUT5 R5 RxOUT4 RxOUT3 RxOUT2 R2 RxOUT1 R1 RxOUT0 R0 R4 R3 Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 17 / 24 PRELIMINARY 5.5 Input Signal,Basic Display Colors and Gray Scale of Each Colors DA TA S IGNA L CO LOR DISP LAY RE D G RE E N BLUE G RA Y S CA LE LEVEL R0 R1 R2 R3 ~R6 0 R6 1 R6 2 R6 3 G0 G1 G2 G 3 ~G 60 G61 G62 G63 B0 B1 B2 B 3 ~B 60 B61 B62 B63 R0 R1 R2 R3 R4 R5 G 0 G 1 G 2 G 3 G 4 G 5 B 0 B 1 B 2 B 3 B 4 B 5 B L ACK B L UE GREEN B A S IC CO LOR CYAN RE D MAGENTA Y E LLOW W HITE B L ACK DA RK G RA Y S CA LE OF RE D L IGHT RE D B L ACK DA RK G RA Y S CA LE OF G RE E N L IGHT G RE E N B L ACK DA RK G RA Y S CA LE OF B L UE L IGHT B L UE 0 0 0 0 1 1 1 1 0 1 0 : : 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 0 1 1 1 1 0 0 1 : : 0 1 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 0 1 1 1 1 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 0 1 1 1 1 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 0 1 1 1 1 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 0 1 1 1 1 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 0 0 0 0 1 0 : : 1 0 1 0 0 0 : : 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 0 0 0 0 0 1 : : 0 1 1 0 0 0 : : 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 0 1 1 0 0 1 1 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 0 0 : : 0 0 0 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 1 0 : : 1 0 1 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 1 : : 0 1 1 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 0 1 0 1 0 1 0 1 0 0 0 : : 0 0 0 0 0 0 : : 0 0 0 0 0 0 : : 1 1 1 Note (1) Definition of Gray : Rn : Red Gray, Gn : Green Gray, Bn : Blue Gray (n = Gray level) (2) Input Signal : 0 = Low level voltage, 1 = High level voltage Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 18 / 24 5.6 PIXEL FORMAT Pixel 1 Line 1 RGB RGB PRELIMINARY Pixel 1280 RGB RGB LTN154X1-L02 Line 800 RGB RGB RGB RGB Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 19 / 24 PRELIMINARY 6. INTERFACE TIMING 6.1 Timing Parameters Signal Frame Frequency Vertical Active Display Term One Line Scanning Time Horizontal Active Display Term Item Cycle Display Period Cycle Display Period Symbol TV TVD TH THD Min (804) (1368) Typ 816 800 1408 1280 Max (900) (1800) Unit lines lines clocks clocks 6.2 Timing diagrams of interface signal TV TVD DE TH DCLK TC THD DE DATA SIGNALS Valid display data ( 1280 pixel) Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 20 / 24 6.3 Power ON/OFF Sequence : To prevent a latch-up or DC operation of the LCD module, the power on/off sequence should be as the diagram below. Power Supply 0.9 VDD VDD 0.1 VDD 0V 0.9 VDD 0.1 VDD PRELIMINARY 0 < T1 10 msec 0 < T2 50 msec 0 < T3 50 msec 400ms T4 0V T1 T2 Signals VALID T3 T4 Power On Power Off Back-light 200 msec T5 200 msec < T6 T5 50% 50% T6 Power ON/OFF Sequence T1 : Vdd rising time from 10% to 90% T2 : The time from Vdd to valid data at power ON. T3 : The time from valid data off to Vdd off at power Off. T4 : Vdd off time for Windows restart T5 : The time from valid data to B/L enable at power ON. T6 : The time from valid data off to B/L disable at power Off. NOTE. (1) The supply voltage of the external system for the module input should be the same as the definition of VDD. (2) Apply the lamp voltage within the LCD operation range. When the back-light turns on before the LCD operation or the LCD turns off before the back-light turns off, the display may momentarily become white. (3) In case of VDD = off level, please keep the level of input signals on the low or keep a high impedance. (4) T4 should be measured after the module has been fully discharged between power off and on period. (5) Interface signal shall not be kept at high impedance when the power is on. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 21 / 24 8. GENERAL PRECAUTIONS 1. Handling PRELIMINARY (a) When the module is assembled, It should be attached to the system firmly using every mounting holes. Be careful not to twist and bend the modules. (b) Refrain from strong mechanical shock and / or any force to the module. In addition to damage, this may cause improper operation or damage to the module and CCFT back-light. (c) Note that polarizers are very fragile and could be easily damaged. Do not press or scratch the surface harder than a HB pencil lead. (d) Wipe off water droplets or oil immediately. If you leave the droplets for a long time, Staining and discoloration may occur. (e) If the surface of the polarizer is dirty, clean it using some absorbent cotton or soft cloth. (f) The desirable cleaners are water, IPA(Isoprophyl Alcohol) or Hexane. Do not use Ketone type materials(ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid or Methyl chloride. It might permanent damage to the polarizer due to chemical reaction. (g) If the liquid crystal material leaks from the panel, it should be kept away from the eyes or mouth . In case of contact with hands, legs or clothes, it must be washed away thoroughly with soap. (h) Protect the module from static , it may cause damage to the C-MOS Gate Array IC. (i) Use fingerstalls with soft gloves in order to keep display clean during the incoming inspection and assembly process. (j) Do not disassemble the module. (k) Do not pull or fold the lamp wire. (l) Do not adjust the variable resistor which is located on the back side. (m) Protection film for polarizer on the module shall be slowly peeled off just before use so that the electrostatic charge can be minimized. (n) Pins of I/F connector shall not be touched directly with bare hands. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 23 / 24 2. STORAGE PRELIMINARY (a) Do not leave the module in high temperature, and high humidity for a long time. It is highly recommended to store the module with temperature from 0 to 35 C and relative humidity of less than 70%. (b) Do not store the TFT-LCD module in direct sunlight. (c) The module shall be stored in a dark place. It is prohibited to apply sunlight or fluorescent light during the store. 3. OPERATION (a) Do not connect,disconnect the module in the " Power On" condition. (b) Power supply should always be turned on/off by following item 6.3 " Power on/off sequence ". (c) 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 minimize the interference. (d) The cable between the back-light connector and its inverter power supply shall be a minimized length and be connected directly . The longer cable between the back-light and the inverter may cause lower luminance of lamp(CCFT) and may require higher startup voltage(Vs). 4. OTHERS (a) Ultra-violet ray filter is necessary for outdoor operation. (b) Avoid condensation of water. It may result in improper operation or disconnection of electrode. (c) Do not exceed the absolute maximum rating value. ( the supply voltage variation, input voltage variation, variation in part contents and environmental temperature, so on) Otherwise the module may be damaged. (d) If the module displays the same pattern continuously for a long period of time,it can be the situation when the image "sticks" to the screen. (e) This module has its circuitry PCB's on the rear side and should be handled carefully in order not to be stressed. Doc.No. LTN154X1-L02 Rev.No 04-P00-G-020725 Page 24 / 24 |
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