MODEL NO. : LTN140AT02-C

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1 TO DATE General Feb, 3, 29 SAMSUNG SAMSUNG TFTLCD TFTLCD MODEL NO. LTN4AT2C NOTE Extension code [C2] Surface type [ Glare ] Any Modification of Specification is not allowed without SEC's Permission. SAMSUNG ELECTRONICS CO., LTD. Doc.No. LTN4AT2C Rev.No 4PS923 Page / 27

2 CONTENTS Revision History General Description. Absolute Maximum Ratings. Absolute Ratings of environment.2 Electrical Absolute Ratings 2. Optical Characteristics 3. Electrical Characteristics 3. TFT LCD Module 3.2 LED Driver 4. Block Diagram 4. TFT LCD Module 4.2 LED connection and placement 5. Input Terminal Pin Assignment ( 4 ) 5. Input Signal & Power 5.2 LVDS Interface 5.3 Timing Diagrams of LVDS For Transmitting 5.4 Input Signals, Basic Display Colors and Gray Scale of Each Color. 5.5 Pixel format 6. Interface Timing 6. Timing Parameters 6.2 Timing Diagrams of interface Signal 6.3 Power ON/OFF Sequence 7. Outline Dimension 8. Packing 9. Markings & Others. General Precautions ( 3 ) ( 4 ) ( 5 ) ( 7 ) ( ) ( 3 ) ( 9 ) ( 2 ) ( 22 ) ( 23 ) ( 25 ) Doc.No. LTN4AT2C Rev.No 4PS923 Page 2 / 27

3 REVISION REVISION HISTORY HISTORY Date Nov Dec Rev. No. Page Summary P All. The preliminary specification was first issued. P 22. Packing SPEC was changed. Doc.No. LTN4AT2C Rev.No 4PS923 Page 3 / 27

4 GENERAL DESCRIPTION DESCRIPTION LTN4AT2G 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 and a backlight unit. The resolution of a 4." contains,366 x 768 pixels and can display up to 262,44 colors. 6 O'clock direction is the Optimum viewing angle. FEATURES High contrast ratio, high aperture structure 366 x 768 pixels resolution Low power consumption Fast Response LED BLU with LED driver 6% Color Gamut DE(Data enable) only mode 3.3V LVDS Interface Onboard EEDID chip Pbfree product APPLICATIONS Notebook PC If the usage of this product is not for PC application, but for others, please contact SEC. GENERAL INFORMATION Display area Driver element Display colors Item Number of pixel Pixel arrangement Pixel pitch Display Mode Surface treatment asi TFT active matrix 262, x RGB(3) x 768 Specification 39.4(H) x 73.95(V) (4. diagonal ) Unit mm pixel RGB vertical stripe.2265(h) x.22265(v) (TYP.) mm Normally white Haze, HardCoating 3H Note 6 9 Doc.No. LTN4AT2C Rev.No 4PS923 Page 4 / 27

5 Mechanical Information Module size Item Horizontal (H) Weight. ABSOLUTE MAXIMUM RATINGS. ENVIRONMENTAL ABSOLUTE RATINGS Item Vertical (V) Depth (D) Storage temperate Operating temperate (Temperature of glass surface) Shock ( nonoperating ) Vibration (nonoperating) Note () Temperature and relative humidity range are shown in the figure below. 95 % RH Max. (4 C Ta) Maximum wet bulb temperature at 39 O C or less. (Ta > 4 C ) No condensation Min Symbol TSTG TOPR Snop Vnop Typ Relative Humidity ( %RH) Operating Range Storage Range Temperature ( O C) (2) 2ms, half sine wave, one time for ±X, ±Y, ± Z. (3) 5 5 Hz, random vibration, 3min for X, Y, Z. (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. Min. 2 Max ( 4,9 ) Unit mm mm mm g ( 5,5.4 ) Max ( 6,27.7 ) Unit C C G G Note Note () () (2),(4) (3),(4) Doc.No. LTN4AT2C Rev.No 4PS923 Page 5 / 27

6 .2 ELECTRICAL ABSOLUTE RATINGS () TFT LCD MODULE Power Supply Voltage Note () Within Ta (25 ± 2 C ) (2) BACKLIGHT UNIT Item LED Current LED Voltage Item Symbol IL VL Symbol VDD Min. Min. VSS.3 VDD =3.3V, VSS = GND = V Ta = 25 ± 2 C Note ) 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. Typ Max. 3.6 Unit V marm s Max. Unit V Note () Note () () Doc.No. LTN4AT2C Rev.No 4PS923 Page 6 / 27

7 2. OPTICAL CHARACTERISTICS 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 (5). Measuring equipment TOPCON BM5A and PR65 Color Chromaticity ( CIE ) Viewing Angle Item Contrast Ratio (5 Points) Response Time at Ta ( Rising + Falling ) Average Luminance of White (5 Points) Color Gamut 3 Points White Variation Red Green Blue White Hor. Ver. Hor. Ver. Symbol CR TRT_B/W YL,AVE RX RY GX GY BX BY WX WY θl θr φh φl θl θr φh φl δl * Ta = 25 ± 2 C, VDD=3.3V, fv= 6Hz, fdclk = 72.33MHz, IL = 2 marms Condition Normal Viewing Angle φ = θ = CR CR Min. 5 2 (.58) (.3) (.35) (.56) (.25) (.3) (.283) (.299) Typ (.6) (.34) (.345) (.59) (.55) (.6) (.33) (.329) 6 Max 2 (.64) (.37) (.375) (.62) (.85) (.9) (.343) (.359).7 Unit msec cd/m 2 % Degrees Degrees Note (), (2), (5) (), (3) IL=2mA (), (4) (), (5) PR65 (), (5) BM5A (6) Doc.No. LTN4AT2C Rev.No 4PS923 Page 7 / 27

8 Note ) Definition of Viewing Angle Viewing angle range( C/R, C/R ) Note 3) Definition of Response time Note 4) Definition of Average Luminance of White measure the luminance of white at 5 points. Average Luminance of White ( YL,AVE ) YL,AVE = θ L =9 o 6 O clock direction φ L = 9 o Display data y' x YL4 + YL5 + YL7 + YL9 + YL 5 θ L White(TFT OFF) φ L Normal Line φ = o, θ = o φ H (32) ( 64) (96) θ R Black(TFT ON) 7 y x' O clock direction φ H = 9 o θ R =9 o Note 2) Definition of Contrast Ratio (CR) Ratio of gray max (Gmax),gray min (Gmin) at 5 points(4, 5, 7, 9, ) Optical Response CR = % 9% % % CR(4) + CR(5) + CR(7) + CR(9) + CR() Points 4, 5, 7, 9, at the figure of Note (6). TR 5 White(TFT OFF) TF VIEW AREA (2) (4) (6) (lines) Time test point Doc.No. LTN4AT2C Rev.No 4PS923 Page 8 / 27

9 TFTLCD module Photodetector ( TOPCON BM5A PR65 ) Center of the screen LCD panel [ Optical characteristics measurement setup ] Note 5) After stabilizing and leaving the panel alone at a given temperature for 3 min, the measurement should be executed. Measurement should be executed in a stable, windless,and dark room. 3 min after lighting the backlight. This should be measured in the center of screen. Environment condition Ta = 25 ± 2 C Field = 2 5 cm Note 6) Definition of 3 points white variation (δ L ), CR variation( CVER ) [ ~ ] mm mm δ L = mm Maximum luminance of 3 points Minimum luminance of 3 points mm (lines) 3 test point Doc.No. LTN4AT2C Rev.No 4PS923 Page 9 / 27

10 3. ELECTRICAL CHARACTERISTICS 3. TFT LCD MODULE Item Voltage of Power Supply Differential Input Voltage for LVDS Receiver Threshold Vsync Frequency Hsync Frequency Main Frequency Rush Current Current of Power Supply Note () Display data pins and timing signal pins should be connected.( GND = V ) (2) fv = 6Hz, fdclk = 72.33MHZ, VDD = 3.3V, DC Current. (3) Power dissipation pattern *a) White Pattern VIEW AREA High Low White Mosaic V. stripe Symbol VDD VIH VIL fv fh fdclk IRUSH IDD Min. 3. Typ (3) (35) (395) Display Brightest Gray Level Display Darkest Gray Level (485) mv mv Hz KHz MHz A ma ma ma *b) Mosaic Pattern Max. 3.6 Unit V Ta= 25 ± 2 C Note VCM = +.2V fv*79 fh*526 (4) (2),(3)*a (2),(3)*b (2),(3)*c Doc.No. LTN4AT2C Rev.No 4PS923 Page / 27

11 *c) dot Vertical stripe pattern 4) Rush current measurement condition CONTROL SIGNAL (HIGH to LOW) 2V 3.3V C3 uf VDD rising time is 47us GND R 47K R3 47K R2 K C2.VDD M 2SK59 pf.9vdd M2 2SK399 FUSE 47us R G B R G B R G B R G R G B R G B R G B R G R G B R G B R G B R G R G B R G B R G B R G C uf 3.3V VDD ( LCD INPUT) Doc.No. LTN4AT2C Rev.No 4PS923 Page / 27

12 3.2 BACKLIGHT UNIT Item LED Forward Current LED Forward Voltage LED Array Voltage Power Consumption Operating Life Time 3.3 LED Driver Symbol IF VF VP P Hr Min , Typ Max Unit ma V V W Hour Ta= 25 ± 2 C Note VF X 7 LEDs IF X VF X 42LEDs Note () Life time (Hr) of LEDs can be defined as the time in which it continues to operate under the condition Ta= 25 ± 2 C and IF = 9. marms until one of the following event occurs.. When the brightness becomes 5% or lower than the original. On board LED Driver (Manufacturer Richtek) Item Input Voltage Operating Frequency Burst Ratio External PWM Dimming Control Frequency (BLIM) Efficiency Symbol Vin Fo FBLIM η Note Test Equipment Fluke 45 D Min Typ Max Unit V KHz % khz % () Ta= 25 ± 2 C Note Vin=6~2V, BLIM=PWM V~3.3V BLIM=% Doc.No. LTN4AT2C Rev.No 4PS923 Page 2 / 27

13 4. BLOCK DIAGRAM 4. TFT LCD Module Input Connector I 2 C bus DCDC Converter Video Signal Control Signal VCOM Gamma DVDD AVDD Von/Voff LVDS EDID EEPROM LVDS Input/RSDS Output Timing Controller 4.2 LED connection and placement LED Power Gamma Generator VCOM Generator Gate Pulse Generator SOURCE PCB RSDS Channel Channel 2 Source Driver IC Channel 7 Channel 6 4. WXGA TFTLCD Panel Gate IC Doc.No. LTN4AT2C Rev.No 4PS923 Page 3 / 27

14 5. INPUT TERMINAL PIN ASSIGNMENT 5.. Input Signal & Power (LVDS, Connector IPEX, 24554E or equivalent Locking type connector) Pin ~ ~ ~ ~3 3~ NC VCC VCC NC RXin RXin RXin+ GND RXin2 RXn+ GND ClkIN RXn2+ GND VBL ClkIN+ GND NC NC NC NC NC NC NC NC PWM LED_EN Symbol VCC_EDID CLK_EDID DATA_EDID Power Supply, 3.3V (typical) Power Supply, 3.3V (typical) DDC 3.3V power No Connection (Reserved for supplier) DDC Clock DDC Data LVDS differential data (RR5, G) + LVDS differential data (RR5, G) Ground LVDS differential data (GG5, BB) + LVDS differential data (GG5, BB) Ground LVDS differential data (B2B5,HS,VS, DE) + LVDS differential data (B2B5,HS,VS, DE) Ground LVDS differential clock input + LVDS differential clock input Ground No Connection Ground No Connection Ground No Connection Ground No Connection LED Ground No Connection PWM for luminance control BL On/Off (On 2.~3.3V, Off ~.5V) Function No Connection (Reserved for supplier) 37 38~4 NC VBL(7~2) No Connection *LED Power Supply 7V2V Doc.No. LTN4AT2C Rev.No 4PS923 Page 4 / 27

15 5.3 LVDS Interface Transmitter DS9CF363 or Compatible Graphics controller 8bit RED RED RED2 RED3 RED4 RED5 GREEN GREEN GREEN2 GREEN3 GREEN4 GREEN5 BLUE BLUE BLUE2 BLUE3 BLUE4 BLUE5 Hsync Vsync Enable CLOCK Pin No. Name RGB Signal Pin No. Name RGB Signal 5 TxIN R 4 TxIN4 G5 52 TxIN R 5 TxIN5 B 54 TxIN2 R2 9 TxIN8 B 55 TxIN3 R3 2 TxIN9 B2 56 TxIN4 R4 22 TxIN2 B3 3 TxIN6 R5 23 TxIN2 B4 4 TxIN7 G 24 TxIN22 B5 6 TxIN8 G 27 TxIN24 Hsync 7 TxIN9 G2 28 TxIN25 Vsync TxIN2 G3 3 TxIN26 DE 2 TxIN3 G4 3 TxCLKIN Clock DS9CF383 LVDS Interface TxOUT+ TxOUT+ TxOUT2+ RxCLKIN TxOUT TxOUT TxOUT2 TxCLKOUT TxCLKOUT+ IPEX, 24554E Integrated IC Note The LCD Module uses a ohm resistor between positive and negative lines of each receiver input. Doc.No. LTN4AT2C Rev.No 4PS923 Page 5 / Ω Ω Ω Ω RxIN+ RxIN+ RxIN2+ RxIN RxIN RxIN2 RxCLKIN+

16 5.4 Timing Diagrams of LVDS For Transmission TxCLK OUT RxCLK IN Rx IN2 Rx IN RxIN LVDS Receiver Integrated TCON T/7 RxOUT2 RxOUT9 RxOUT8 RxOUT7 RxOUT6 RxOUT5 RxOUT4 DE Vsync RxOUT3 RxOUT2 RxOUT RxOUT RxOUT9 RxOUT8 RxOUT7 B RxOUT6 RxOUT5 RxOUT4 RxOUT3 RxOUT2 RxOUT RxOUT G T Hsync B5 B4 B3 B G5 G4 G3 G2 G R5 R4 R3 R2 R R B2 Doc.No. LTN4AT2C Rev.No 4PS923 Page 6 / 27

17 Doc.No. Rev.No Page / 27 LTN4AT2C 7 4PS Input Signals, Basic Display Colors and Gray Scale of Each Color Note ) Definition of gray Rn Red gray, Gn Green gray, Bn Blue gray (n=gray level) Note 2)Input signal =Low level voltage, =High level voltage B3 B6 B2 B Dark B Black Gray Scale Of Blue G6 G3 G6 G2 G Dark G Black Gray Scale Of Green B63 Blue B62 Light B6 G63 Green G62 Light R63 Red R62 Light R6 R3 R6 R2 R Dark R Black Gray Scale Of Red White Yellow Magenta Red Cyan Green Blue Black Basic Colors B5 45 B3 B2 B B G5 G4 G3 G2 G G R5 R4 R3 R2 R R Blue Green Red Gray Scale Level Data Signal Display Color

18 5.6 Pixel Format in the display Line Line 768 R G B R G B R G B LTN4AT2C Panel R G B R G B R G B R G B R G B 366 Doc.No. LTN4AT2C Rev.No 4PS923 Page 8 / 27

19 6. INTERFACE TIMING 6. Timing Parameters 6.2 Timing diagrams of interface signal DE Frame Frequency Vertical Active Display Term One Line Scanning Time Horizontal Active Display Term DCLK Signal Item Cycle Display Period Cycle Display Period TC TVD Symbol T V T VD T H T HD Min TV TH Typ Max Unit Lines Lines Clocks Clocks DE DATA SIGNALS THD Valid display data ( 28 clocks) Note Doc.No. LTN4AT2C Rev.No 4PS923 Page 9 / 27

20 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. Power Supply VDD Signals LED Power PWM B/L Enable 5 T 4 <T 6 T 3 <T 7 <T 8 <T 9 <T V Timing (ms).5<t <T 2 5 <T 3 5 <T 5 T 2.9 VDD.9 VDD. VDD. VDD T T5 T2 9% T7 T9 VALID Power ON/OFF Sequence Remarks V DD rising time from % to 9% Delay from V DD to valid data at power ON Delay from valid data OFF to V DD off at power OFF V DD OFF time for Windows restart Delay from V DD ON to LED driver power ON Delay from LED driver power OFF to V DD OFF Delay from valid data to PWM ON T Delay from PWM OFF to valid data OFF Delay from PWM ON to B/L Enable ON Delay from B/L Enable Off to PWM OFF % Power Sequence & Timing Parameters T8 T3 T6 T4 Doc.No. LTN4AT2C Rev.No 4PS923 Page 2 / 27

21 6.3 Power ON/OFF Sequence NOTE. () The supply voltage of the external system for the module input should be the same as the definition of VDD. (2) Apply the B/L operation voltage within the LCD operation range. When the backlight turns on before the LCD operation or the LCD turns off before the backlight 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. (6) EN must be turned on late than VDD and PWM signal. EN must be turned off early than VDD and and PWM signal. Doc.No. LTN4AT2C Rev.No 4PS923 Page 2 / 27

22 7. Mechanical Outline Dimension It will be attached with PDF file Doc.No. LTN4AT2C Rev.No 4PS923 Page 22 / 27

form as shock absorber (2) Packing Method CUSHION TOP PANEL Note ) Total Weight

24 8. PACKING. CARTON(Internal Package) () Packing Form Corrugated Cardboard box and Corrupad form as shock absorber (2) Packing Method CUSHION TOP PANEL Note ) Total Weight Approximately 5. kg 2) Acceptance number of piling 3 sets 3) Carton size 48(W) * 325(D) * 294(H) CUSHION BOTTOM Doc.No. LTN4AT2C Rev.No 4PS923 Page 23 / 27

25 No Part name Quantity Static electric protective sack 3 Packing case (Inner box) 2 included shock absorber set 3 4 Pictorial marking Carton 9. MARKINGS & OTHERS A nameplate bearing followed by is affixed to a shipped product at the specified location on each product. () Parts number LTN4AT2G (2) Revision Three letters (3) Lot number 6 J 7 F XXX XX X NOTE ). This code indicating year is omitted in the products of KIHENG site. (4) Nameplate Indication 8 LTN4AT2C XXXXXXXXXX 2 pcs set Cell Position No.(In the one Glass) Glass No.(In the one Lot) Lot No.(Glass) Month Year(Note ) Product Code Line 8 mm Parts name LTN4AT2C Lot number XXXXXXXXXX Inspected work week 8(28 year th week) Product Revision Code XXX 4 mm XXX Doc.No. LTN4AT2C Rev.No 4PS923 Page 24 / 27

26 This HIGH VOLTAGE CAUTION is carved in mold frame (6) Packing box attach HIGH VOLTAGE CAUTION RISK OF ELECTRIC SHOCK DISCONNECT THE ELECTRIC POWER BEFORE SERVICE DEVICE TYPE QUANTITY XXXXXXXXX 7mm LTN4AT2 C PCS THIS COVER CONTAINS FLUORESCENT LAMP. PLEASE FOLLOW LOCAL ORDINANCES OR REGULATIONS FOR ITS DISPOSAL (7) Packing box Marking Samsung TFTLCD Brand Name mm High voltage caution Doc.No. LTN4AT2C Rev.No 4PS923 Page 25 / 27

27 . GENERAL PRECAUTIONS. Handling (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 backlight. (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 CMOS 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. LTN4AT2C Rev.No 4PS923 Page 26 / 27

28 2. STORAGE (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 C and relative humidity of less than 7%. (b) Do not store the TFTLCD 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 backlight connector and its inverter power supply shall be a minimized length and be connected directly. The longer cable between the backlight and the inverter may cause lower luminance of lamp(ccft) and may require higher startup voltage (Vs). (e) The standard limited warranty is only applicable when the module is used for general notebook applications. If used for purposes other than as specified, SEC is not to be held reliable for the defective operations. It is strongly recommended to contact SEC to find out fitness for a particular purpose. 4. 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. ( 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. LTN4AT2C Rev.No 4PS923 Page 27 / 27

Application engineering part, Mobile Division Samsung Electronics Co., Ltd.

Application engineering part, Mobile Division Samsung Electronics Co., Ltd. TO DATE : General : Jan. 25, 2013 SAMSUNG TFT-LCD MODEL NO. : LTN156AT19-0 NOTE : Extension code [ - 0xx ] LTN156AT19-0xx Surface type [ A/G ] Any modification of Spec is not allowed without SEC s permission