SAMSUNG TFT-LCD PRODUCT INFORMATION. Note : This is Product Information is subject to change after 3 months of issuing date.

Transcription

1 ISSUED DATE 27 5 SAMSUNG TFTLCD PRODUCT INFORMATION MODEL LTM22CS Note This is Product Information is subject to change after 3 months of issuing date. Development Group, LCD Business Samsung Electronics Co., LTD.

2 Contents Product Information General Description (3). Absolute Maximum Ratings (4) 2. Optical Characteristics (6) 3. Electrical Characteristics (2) 3. TFT LCD Module 3.2 Back Light Unit 4. Block Diagram (7) 4. TFT LCD Module 4.2 Back Light Unit 5. Input Terminal Pin Assignment (8) 5. Input Signal & Power 5.2 LVDS Interface 5.3 LVDS Interface(2) 5.4 Back Light Unit 5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color 6. Interface Timing (27) 6. Timing Parameters (DE only mode) 6.2 Timing Diagrams of interface Signal (DE only mode) 6.3 Power ON/OFF Sequence 6.4 LVDS Input Characteristics 6.5 VDD Power Dip Condition 7. Outline Dimension (3) 8. General Precaution (33) 8. Handling 8.2 Storage 8.3 Operation 8.4 Others

3 General Description Product Information Description LTM22CS is a color active matrix liquid crystal display (LCD) that uses amorphous silicon TFT (Thin Film Transistor) as switching components. This model is composed of a TFT LCD panel, a driver circuit and a back light unit. The resolution of a 22. is 92 x 2 and this model can display up to 6.7 millions colors. Features High contrast ratio, high aperture structure SPVA (Super Patterned Vertical Alignment) mode Wide viewing angle High speed response WUXGA (92 x 2 pixels) resolution Utype 6 CCFTs (Cold Cathod Fluorescent Tube) DE (Data Enable) mode LVDS (Low Voltage differential Signaling) interface (2pixel/clock) RoHS compliance Pbfree compliance High Color Gamut Applications Workstation & desktop monitors Display terminals for AV application products Monitors for industrial machine * If the module is used to other applications besides the above, please contact SEC in advance. General Information Items Specification Unit Note Pixel Pitch.247(H) x.247(w) mm Active Display Area (H) x 296.(V) mm Surface Treatment Haze 44%, Hardcoating (3H) Display Colors 6.7M (true 8bit) colors Number of Pixels 92 x 2 pixel Pixel Arrangement RGB vertical stripe Display Mode Normally Black Luminance of White 3(Typ.) cd/

4 Mechanical Information Item Min. Typ. Max. Unit Note Module size Horizontal (H) Vertical (V) mm mm w/o inverter ass y Depth (D) 36.3 mm TBD Weight 3 g g LCD module only w/ Inverter assembly Note () Mechanical tolerance is.5mm unless there is a special comment.. Absolute Maximum Ratings If the condition exceeds maximum ratings, it can cause malfunction or unrecoverable damage to the device. Item Symbol Min. Max. Unit Note Power Supply Voltage V DD GND V Data Signal V sig 5 V Storage temperature T STG 2 6 () Glass surface temperature (Operation condition) T OPR 5 Shock ( non operating ) S nop 5 G (2) Vibration ( non operating ) V nop.5 G (3) Note () Ta= 25 2 C

5 () Temperature and relative humidity range are shown in the figure below. a. 9 % RH Max. (Ta 39 C) b. Maximum wetbulb temperature at 39 C or less. (Ta 39 C) c. No condensation (2) ms, sine wave, one time for X, Y, Z axis (3) 3 Hz, Sweep rate min, 3min for X,Y,Z axis Product Information (39,9) (5,5.4) (6,27.7) (25,5) Fig. Temperature and Relative humidity range

6 2. Optical Characteristics Product Information The optical characteristics should be measured in a dark room or equivalent. Measuring equipment SR3, RD8S (TOPCON), EZContrast (Eldim) Item (Ta = 25 2 C, VDD=5V, fv= 6Hz, fdclk=77mhz, IL = 6.mArms) Symbol Condition Min. Typ. Max. Unit Note Contrast Ratio (Center of screen) C/R (7) (,) (3) SR3 Response Time On/Off GToG Tr + Tf T GG,AVG msec msec (5) RD8S RD8S Luminance of White (Center of screen) Y L 25 3 cd/m2 (6) SR3 Red Rx Ry (.659) (.327) Color Chromaticity (CIE 93) Green Blue Gx Gy Bx By Normal L,R = U,D = Viewing Angle.3 (.26) (.68) (.47) (.7) +.3 White Wx Wy (7),(8) Red Ru' Rv' (.47) (.525) SR3 Color Chromaticity (CIE 976) Green Blue Gu' Gv' Bu' Bv' (.8) (.57) (.66) (.78) White Wu' Wv' C.G.L White u'v'.2 (9) * C.G.L Color Grayscale Linearity (continue to the next page)

7 Color Gamut Color Temperature Viewing Angle Viewing Angle Item Hor. Ver. Hor. Ver. Brightness Uniformity (9 Points) Symbol L L B uni Condition Min. 8 Typ Max. 25 Unit % K % Note 8 89 (8) R CR Degrees EZ U 8 89 Contrast D (8) R CR Degrees EZ U 65 Contrast D 65 (4) SR3 Note () Test Equipment Setup The measurement should be executed in a stable, windless and dark room between 3min after lighting the back light at the given temperature for stabilization of the back light. This should be measured in the center of screen. Single lamp current 6.mA Environment condition Ta = 25 2 C Photo detector SR3 Field 2 Photo detector Field SR3 4 RD8S 5 TFT LCD Module LCD Panel The center of the screen

8 Note (2) Definition of test point Active Area Test Point Note (3) Definition of Contrast Ratio (C/R) Ratio of gray max (Gmax) & gray min (Gmin) at the center point of the panel CR G G max min Gmax Luminance with all pixels white Gmin Luminance with all pixels black Note (4) Definition of 9 points brightness uniformity ( Bmax Bmin) Buni B max Bmax Maximum brightness with all pixels white Bmin Minimum brightness with all pixels white

9 Note (5) Definition of Response time a. On/Off response time Sum of Tr, Tf Display Data Black (TFT OFF) White (TFT ON) Black (TFT OFF) Optical Response % 9% T R T F % % Time b. Gray to Gray Response Time Measuring gray 3 63, 63 95,95 27, 27 59, 59 9, grays and vice versa T GG, avg Average response time of ones between above grays (Example) 95 gray 27 gray 96 gray 28 gray White Gray to Gray Response % 9% % % Black T r T f

10 Note (6) Definition of Luminance of White Luminance of white at center point Note (7) Definition of Color Chromaticity (CIE 93, CIE976) Color coordinate of Red, Green, Blue & White at center point Note (8) Definition of Viewing Angle Viewing angle range (CR ) CR )

11 Note (9) Color Grayscale Linearity a. Test image % full white pattern with a test pattern as below Product Information b. Test pattern Squares, 4mm by 4mm in size, filled with 255, 225, 95, 65, 35 and 5 grays steps should be arranged at the center of the screen. c. Test method st gray step move a square of 255 gray level should be moved into the center of the screen and measure luminance and u and v coordinates. Next gray step Move a 225 gray square into the center and measure both luminance and coordinates, too. d. Test evaluation u' v'= (u' A u' B) 2 + (v' A v' B) 2 Where A, B 2 gray levels found to have the largest color differences between them i.e. get the largest u and v of each 6 pair of u and v and calculate the u v.

12 3. Electrical Characteristics Product Information 3. TFT LCD Module The connector for display data & timing signal should be connected. Ta = 25 C Item Symbol Min. Typ. Max. Unit Note Voltage of Power Supply V DD V () Differential Input Voltage for LVDS Receiver Threshold High Low + mv mv (2) LVDS skew t SKEW 3 3 (3) LVDS Input Characteri stics Differential input voltage Input voltage range (singleended) V ID V IN mv V (4) (4) Common mode voltage V CM + V ID / V ID /2 V (4) Input current I IN Current of Power Supply (a) Black (,7) ma I DD (b) White (2,) ma (5),(6) (c) Dot (2,4) (3,) ma Vsync Frequency f V Hz Hsync Frequency f H khz Main Frequency f DCLK MHz Rush Current I RUSH 5. A (7) Note () The ripple voltage should be controlled under % of V DD.

13 (2) Differential receiver voltage definitions and propagation delay and transition time test circuit a. All input pulses have frequency = MHz, t R or t F =ns b. C L includes all probe and fixture capacitance Note a. Note b. (3) LVDS Receiver DC parameters are measured under static and steady conditions which may not be reflective of its performance in the end application. T LVDS Clk V DIFF = V V DIFF = V Differential LVDS Data RX +/ Differential t SKEW where tskew skew between LVDS clock & LVDS data, T period time of LVDS clock cf) (/+) of 38psec means LVDS data goes before or after LVDS clock. (4) Definition of V ID and V CM using singleend signals

14 (5) fv=6hz, fdclk = 54MHz, VDD = 5.V, DC Current. (6) Power dissipation check pattern (LCD Module only) a) Black Pattern b) White Pattern c) Dot Pattern (7) Measurement Condition % 9% V DD % GND T RUSH =47 Rush Current I RUSH can be measured when T RUSH. is 47.

15 3.2 Back Light Unit The back light unit is a direct lighting with Utype 6 CCFTs (Cold Cathode Cathode Fluorescent Tube ). The characteristics of two dual lamps are shown in the following tables. Ta=25 2 C Item Symbol Min. Typ. Max. Unit Note Lamp Current I L (5.5) (6.) (7.) marms () PWM Dimming Duty (3) Lamp Voltage V L (78) Lamp Frequency f L (4) (6) khz (3) Operating Life Time Hr (3,) Hour (4) Inverter waveform Asymmetry rate Distortion rate Wasy Wdis % (5) Startup Voltage Vs 2, ,36 Vrms (6) Note () Specified values are for a single lamp. Lamp current is measured with current meter for high frequency as shown below. Refer to the following block diagram of the back light unit for more information. Fig. Measurement point of Lamp Current

16 (2) Lamp frequency which may produce interference with horizontal synchronous frequency 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) Life time (Hr) is defined as the time when brightness of a lamp unit itself becomes 5% or less than its original value at the condition of Ta = 25 2 C and I L = 6.mArms (4) Designing a system inverter intended to have better display performance, power efficiency and lamp reliability. They would help increase the lamp lifetime and reduce leakage current. a. The measurement should be done at typical lamp current. b. The asymmetry rate of the inverter waveform should be less than %. c. The distortion rate of the waveform should be 2 with % tolerance. Inverter output waveform had better be more similar to ideal sine wave. I p I p Fig. Wave form of the inverter Asymmetry rate Ip I p Irms Distortion rate Ip Irms or I p Irms (5) If an inverter has shutdown function, it should keep its output for over second even if the lamp connector is open. Otherwise the lamps may not be turned on.

17 4. BLOCK DIAGRAM Product Information 4. TFT LCD Module Source Driver circuit LVDS pair # LVDS pair #2 CN (3pin) LVDS (Rx) RSDS(Tx) Timing Controller S Column Driver Circuit TFTLCD (92 x RGB x 2 pixels) S92 +5.V V DD Power Circuit Backlight Unit (U type 6CCFL) 4.2 Back Light Unit Connector SOCKET Type HOT, 2 CCFL HOT 3, 4 CCFL 2 HOT 5, 6 CCFL 3 HOT 7, 8 CCFL 4 HOT 9, CCFL 5 HOT, 2 CCFL 6

18 5. Input Terminal Pin Assignment Product Information 5.. Input Signal & Power ( Connector UJU, ISL3OC23 or equivalent ) PIN NO SYMBOL RXON RXOP RXON RXOP RXO2N RXO2P GND RXEC RXOC RXOC+ RXO3N RXO3P RXEN RXEP GND RXEN RXEP GND RXE2N RXE2P RXEC+ RXE3N RXE3P GND NC NC VDD VDD VDD VDD Positive LVDS differential data output Negative LVDS differential data output Positive LVDS differential data output Negative LVDS differential data output Positive LVDS differential data output Ground Negative Sampling Clock (ODD data) Positive Sampling Clock (ODD data) Negative LVDS differential data output Positive LVDS differential data output Negative LVDS differential data output Positive LVDS differential data output Ground Negative LVDS differential data output Positive LVDS differential data output Ground Negative LVDS differential data output Positive LVDS differential data output Negative Sampling Clock (EVEN data) Positive Sampling Clock (EVEN data) Negative LVDS differential data output Positive LVDS differential data output Ground * CE (For LCD internal use only. Do not connect) * CTL (For LCD internal use only. Do not connect) Power Supply +5V FUNCTION Negative LVDS differential data output * If the system already uses the 25, 26pins, it should keep under GND level The voltage applied to those pins should not exceed 2mV.

19 Note) Pin number starts from Left side Control PCB Pin No. Pin No. 3 # #3 # #3 Fig. Connector diagram a. All GND pins should be connected together and also be connected to the LCD s metal chassis. b. All power input pins should be connected together. c. All NC pins should be separated from other signal or power.

20 5.2 LVDS Interface 5.2. Odd Pixel Data (st pixel data) Product Information st LVDS Transmitter ( DS9C383, DS9C385 ) Signal Interface Device Input Pin No Symbol Symbol Device Input Signal Function Output Signal To LTM22CS Interface ( CN ) Terminal Symbol 5 TXIN RO Red Odd Pixel Data (LSB) TXIN TXIN2 TXIN3 RO RO2 RO3 Red Odd Pixel Data Red Odd Pixel Data Red Odd Pixel Data TXOUT TXOUT+ No. No. 2 RXO RXO+ 56 TXIN4 RO4 Red Odd Pixel Data 2 TXIN5 RO7 Red Odd Pixel Data (MSB) TXOUT3 TXOUT3+ No. No. RXO3 RXO TXIN6 TXIN7 RO5 GO Red Odd Pixel Data Green Odd Pixel Data (LSB) TXOUT TXOUT+ No. No. 2 RXO RXO+ 6 7 TXIN8 TXIN9 GO GO2 Green Odd Pixel Data Green Odd Pixel Data TXOUT TXOUT+ No. 3 No. 4 RXO RXO+ 8 TXIN TXIN GO6 GO7 Green Odd Pixel Data Green Odd Pixel Data (MSB) TXOUT3 TXOUT3+ No. No. RXO3 RXO3+ 2 TXIN3 GO4 Green Odd Pixel Data TXOUT No. 3 RXO 4 TXIN4 GO5 Green Odd Pixel Data TXOUT+ No. 4 RXO TXIN2 TXIN5 TXIN6 TXIN7 GO3 BO BO6 BO7 Green Odd Pixel Data Blue Odd Pixel Data (LSB) Blue Odd Pixel Data Blue Odd Pixel Data (MSB) TXOUT3 TXOUT3+ No. No. RXO3 RXO3+ 9 TXIN8 BO Blue Odd Pixel Data TXOUT TXOUT+ No. 3 No. 4 RXO RXO TXIN2 BO3 Blue Odd Pixel Data TXOUT2 No. 5 RXO2 23 TXIN2 BO4 Blue Odd Pixel Data TXOUT2+ No. 6 RXO2+ 24 TXIN9 TXIN22 BO2 BO5 Blue Odd Pixel Data Blue Odd Pixel Data 5 TXIN27 RO6 Red Odd Pixel Data TXOUT3 TXOUT3+ No. No. RXO3 RXO3+

21 5.2.2 Even Pixel Data (2nd pixel data) Product Information 2nd LVDS Transmitter ( DS9C383, DS9C385 ) Signal Interface Device Input Pin No Symbol Symbol Device Input Signal Function Output Signal To LTM22CS Interface ( CN ) Terminal Symbol 5 TXIN RE Red Even Pixel Data (LSB) TXIN TXIN2 TXIN3 RE RE2 RE3 Red Even Pixel Data Red Even Pixel Data Red Even Pixel Data TXOUT TXOUT+ No. 2 No. 3 RXE RXE+ 56 TXIN4 RE4 Red Even Pixel Data 2 TXIN5 RE7 Red Even Pixel Data (MSB) TXOUT3 TXOUT3+ No. 22 No. 23 RXE3 RXE TXIN6 TXIN7 RE5 GE Red Even Pixel Data Green Even Pixel Data (LSB) TXOUT TXOUT+ No. 2 No. 3 RXE RXE+ 6 7 TXIN8 TXIN9 GE GE2 Green Even Pixel Data Green Even Pixel Data TXOUT TXOUT+ No. 5 No. 6 RXE RXE+ 8 TXIN TXIN GE6 GE7 Green Even Pixel Data Green Even Pixel Data (MSB) TXOUT3 TXOUT3+ No. 22 No. 23 RXE3 RXE3+ TXIN2 GE3 Green Even Pixel Data 2 4 TXIN3 TXIN4 GE4 GE5 Green Even Pixel Data Green Even Pixel Data TXOUT TXOUT+ No. 5 No. 6 RXE RXE+ 5 TXIN5 BE Blue Even Pixel Data (LSB) 6 8 TXIN6 TXIN7 BE6 BE7 Blue Even Pixel Data Blue Even Pixel Data (MSB) TXOUT3 TXOUT3+ No. 22 No. 23 RXE3 RXE3+ 9 TXIN8 BE Blue Even Pixel Data TXOUT TXOUT+ No. 5 No. 6 RXE RXE+ 2 TXIN9 BE2 Blue Even Pixel Data TXIN2 TXIN2 BE3 BE4 Blue Even Pixel Data Blue Even Pixel Data TXOUT2 TXOUT2+ No. 8 No. 9 RXE2 RXE2+ 24 TXIN22 BE5 Blue Even Pixel Data 5 TXIN27 RE6 Red Even Pixel Data TXOUT3 TXOUT3+ No. 22 No. 23 RXE3 RXE3+

22 5.3 LVDS Interface(2) 5.3. Odd Pixel Data (st pixel data) Product Information LVDS Transmitter ( DS9C387 ) Signal Interface Device Input Pin No Symbol Symbol Device Input Signal Function Output Signal To LTM22CS Interface ( CN ) Terminal Symbol R RO Red Odd Pixel Data (LSB) R R2 R3 RO RO2 RO3 Red Odd Pixel Data Red Odd Pixel Data Red Odd Pixel Data AM AP No. No. 2 RXO RXO+ 6 R4 RO4 Red Odd Pixel Data 3 R7 RO7 Red Odd Pixel Data (MSB) A3M A3P No. No. RXO3 RXO R5 G RO5 GO Red Odd Pixel Data Green Odd Pixel Data (LSB) AM AP No. No. 2 RXO RXO+ G G2 GO GO2 Green Odd Pixel Data Green Odd Pixel Data AM AP No. 3 No. 4 RXO RXO G6 G7 G3 B B6 B7 GO6 GO7 GO3 BO BO6 BO7 Green Odd Pixel Data Green Odd Pixel Data (MSB) Green Odd Pixel Data Blue Odd Pixel Data (LSB) Blue Odd Pixel Data Blue Odd Pixel Data (MSB) A3M A3P A3M A3P No. No. No. No. 96 G4 GO4 Green Odd Pixel Data AM No. 3 RXO 95 G5 GO5 Green Odd Pixel Data AP No. 4 RXO+ RXO3 RXO3+ RXO3 RXO3+ 9 B BO Blue Odd Pixel Data AM AP No. 3 No. 4 RXO RXO B3 BO3 Blue Odd Pixel Data A2M No. 5 RXO2 88 B4 BO4 Blue Odd Pixel Data A2P No. 6 RXO B2 B5 R6 BO2 BO5 RO6 Blue Odd Pixel Data Blue Odd Pixel Data Red Odd Pixel Data A3M A3P No. No. RXO3 RXO3+

23 5.3.2 Even Pixel Data (2nd pixel data) LVDS Transmitter ( DS9C387 ) Signal Interface Device Input Pin No Symbol Symbol Device Input Signal Function Output Signal To LTM22CS Interface ( CN ) Terminal Symbol R2 R2 R22 R23 R24 R27 R25 G2 G2 G22 G26 G27 G23 B2 B26 B27 B2 B22 B25 R26 RE RE RE2 RE3 RE4 RE7 RE5 GE GE GE2 GE6 GE7 GE3 BE BE6 BE7 BE BE2 BE5 RE6 Red Even Pixel Data (LSB) Red Even Pixel Data Red Even Pixel Data Red Even Pixel Data Red Even Pixel Data Red Even Pixel Data (MSB) Red Even Pixel Data Green Even Pixel Data (LSB) Green Even Pixel Data Green Even Pixel Data Green Even Pixel Data Green Even Pixel Data (MSB) Green Even Pixel Data Blue Even Pixel Data (LSB) Blue Even Pixel Data Blue Even Pixel Data (MSB) Blue Even Pixel Data Blue Even Pixel Data Blue Even Pixel Data Red Even Pixel Data A4M A4P A7M A7P A4M A4P A5M A5P A7M A7P A7M A7P A5M A5P A7M A7P No. 2 No. 3 No. 22 No. 23 No. 2 No. 3 No. 5 No. 6 No. 22 No. 23 No. 22 No. 23 No. 5 No. 6 No. 22 No. 23 RXE RXE+ RXE3 RXE3+ RXE RXE+ RXE RXE+ 7 G24 GE4 Green Even Pixel Data A5M No. 5 RXE 69 G25 GE5 Green Even Pixel Data A5P No. 6 RXE+ RXE3 RXE3+ RXE3 RXE3+ 6 B23 BE3 Blue Even Pixel Data A6M No. 8 RXE2 6 B24 BE4 Blue Even Pixel Data A6P No. 9 RXE2+ RXE RXE+ RXE3 RXE3+

24 5.3.3 Timing Diagrams of LVDS For Transmitting LVDS Receiver Integrated TCON

25 5.4 Back Light Unit Pin No. Input Color Function HOT None High Voltage 2 HOT None High Voltage 2 HOT None High Voltage 22 HOT None High Voltage 3 HOT None High Voltage 32 HOT None High Voltage 4 HOT None High Voltage 42 HOT None High Voltage 5 HOT None High Voltage 52 HOT None High Voltage 6 HOT None High Voltage 62 HOT None High Voltage Connector Part No. Type

26 Product Information Product Information 5.5 Input Signals, Basic Display Colors and Gray Scale of Each Color B255 BLUE B254 B253 B3~ B252 B2 B DARK LIGHT B BLACK GRAY SCALE OF BLUE G255 GREEN G254 G253 G3~ G252 G2 G DARK LIGHT G BLACK GRAY SCALE OF GREE N R255 RED R254 R253 R3~ R252 R2 R DARK LIGHT R BLACK GRAY SCALE OF RED WHITE YELLOW MAGENT A RED CYAN GREEN BLUE BLACK BASIC COLO R B7 B6 B5 B4 B3 B2 B B G 7 G6 G 5 G 4 G3 G 2 G G R7 R6 R5 R4 R3 R2 R R BLUE GREEN RED GRAY SCALE LEVEL DATA SIGNAL DISPLAY (8bit) COLO R Note () Definition of Gray Rn Red Gray, Gn Green Gray, Bn Blue Gray (n = Gray level) Input Signal = Low level voltage, = High level voltage

27 6. Interface Timing Product Information 6. Timing Parameters ( DE only mode ) SIGNAL ITEM SYMBOL MIN. TYP. MAX. Unit NOTE Clock /T C MHz Hsync Frequency F H KHz Vsync F V Hz Vertical Display Term Active Display Period Vertical Total T VD T VB lines lines Horizontal Display Term Active Display Period Horizontal Total T HD T H clocks clocks Note () This product is DE only mode. The input of Hsync & Vsync signal does not have an effect on normal operation. (2) Test Point TTL control signal and CLK at LVDS Tx input terminal in system (3) Internal Vcc = 3.3V

28 6.2 Timing diagrams of interface signal ( DE only mode ) TV TVD TVB DE TH THD DE DCLK TC DATA SIGNALS TC TCH TCL DCLK.5 V CC TDS TDH DISPLAY DATA.5 V CC TES DE.5 V CC

29 6.3 Power ON/OFF Sequence To prevent a latchup or DC operation of the LCD Module, the power on/off sequence should be as the diagram below. 3 T msec T2 5msec T3 5msec 5msec T4 BackLight (Recommended) 5msec T5 msec T6 T V DD rising time from % to 9% T2 The time from V DD to valid data at power ON. T3 The time from valid data off to V DD off at power Off. T4 V DD 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. The supply voltage of the external system for the Module input should be the same as the definition of V DD. 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 show abnormal screen. In case of V DD = off level, please keep the level of input signals low or keep a high impedance. T4 should be measured after the Module has been fully discharged between power off and on period. Interface signal should not be kept at high impedance when the power is on.

30 6.5 VDD Power Dip Condition V DD T d 9% 8% V CC GND 4.5V V DD 5.5V If V DD (typ.) x 8% V CC V DD (typ) x 9% Then, <Td 2msec Note () The above conditions are for the glitch of the input voltage. (2) For stable operation of an LCD Module power, please follow them. i.e., if typ VDD x 8% Vcc typ VDD x 9%, then T d should be less than 2ms.

31 7. Outline Dimension [ Refer to the next page ] Product Information

32

33 8. General Precautions Product Information 8. Handling (a) When the module is assembled, it should be attached to the system firmly using all mounting holes. Be careful not to twist and bend the module. (b) Because the inverter uses high voltages, it should be disconnected from power source before it is assembled or disassembled. (c) Refrain from strong mechanical shock and / or any force to the module. In addition to damage, it may cause improper operation or damage to the module and CCFT back light. (d) Note that polarizer films are very fragile and could be damaged easily. Do not press or scratch the surface harder than a HB pencil lead. (e) Wipe off water droplets or oil immediately. If you leave the droplets for a long time, staining or discoloration may occur. (f) If the surface of the polarizer is dirty, clean it using absorbent cotton or soft cloth. (g) Desirable cleaners are water, IPA (Isopropyl Alcohol) or Hexane. Do not use Ketone type materials (ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid or Methyl chloride. It might cause permanent damage to the polarizer due to chemical reaction. (h) 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 with soap thoroughly. (i) Protect the Module from static, or the CMOS Gate Array IC would be damaged. (j) Use fingerstalls with soft gloves in order to keep display clean during the incoming inspection and assembly process. (k) Do not disassemble the Module. (l) Do not pull or fold the lamp wire. (m) Do not adjust the variable resistor located on the Module. (n) Protection film for polarizer on the Module should be slowly peeled off just before use so that the electrostatic charge can be minimized. (o) Pins of I/F connector should not be touched directly with bare hands.

34 8.2 Storage Product Information (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 to 35 and relative humidity of less than 7%. (b) Do not store the TFTLCD Module in direct sunlight. (c) The Module should be stored in a dark place. It is prohibited to apply sunlight or fluorescent light in storing. 8.3 Operation (a) Do not connect or disconnect the Module in the "Power On" condition. (b) Power supply should always be turned on/off by the item 6.3 "Power on/off sequence" (c) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference should 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 should be connected directly with a minimized length. A longer cable between the back light and the inverter may cause lower luminance of lamp(ccft) and may require higher startup voltage(vs). 8.4 Operation Condition Guide (a) The LCD product should be operated under normal conditions. Normal condition is defined as below; Temperature 2 5 Humidity 65 2% Display pattern continually changing pattern (Not stationary) (b) If the product will be used in extreme conditions such as high temperature, humidity, display patterns or operation time etc.., It is strongly recommended to contact SEC for Application engineering advice. Otherwise, its reliability and function may not be guaranteed. Extreme conditions are commonly found at Airports, Transit Stations, Banks, Stock market, and Controlling systems.

35 8.5 Others (a) Ultraviolet 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. ( supply voltage variation, input voltage variation, variation in part contents and environmental temperature, and so on) Otherwise the Module may be damaged. (d) If the Module keeps displaying the same pattern for a long period of time, the image may be "sticked" to the screen. To avoid image sticking, it is recommended to use a screen saver. (e) This Module has its circuitry PCB's on the rear side and should be handled carefully in order not to be stressed. (f) Please contact SEC in advance when you display the same pattern for a long time.