LC320WXN LG | Alldatasheet
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Ver. 1.0 32.0” WXGA TFT LCDTitle MODEL GeneralBUYER *When you obtain standard approval, please use the above model name without suffix LC320WXN*MODEL SCA1 (RoHS Verified)SUFFIX LG.Display Co., Ltd.SUPPLIER Final Specification Preliminary Specification FOR APPROVAL SPECIFICATION TV Products Development Dept. LG. Display LCD Co., Ltd Y. D Lee / Engineer PREPARED BY S. W Yu / Project Leader REVIEWED BY P. Y Kim / Team Leader SIGNATURE DATEAPPROVED BY Please return 1 copy for your confirmation with your signature and comments. SIGNATURE DATEAPPROVED BY
Ver. 1.0 Final Specification-Jan,11,20091.0 Preliminary Specification (First Draft) -Sep, 25, 20090.0 DescriptionPageRevision DateRevision No. RECORD OF REVISIONS
Ver. 1.0 General Features Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))Viewing Angle (CR>10) 8bit , 16.7M colorsColor Depth 1366 horiz. by 768 vert. Pixels, RGB stripe arrangementPixel Format 450 cd/m2 (Center 1point ,Typ.)Luminance, White Total 83.6 W (Typ.) (Logic=3.6 W, Inverter=80W ) Power Consumption 5.0Kg (Typ.) Weight Transmissive mode, Normally blackDisplay Mode Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 10%)Surface Treatment 0.51075 mm x 0.17025 mm x RGBPixel Pitch 760.0(H) x 450.0 (V) x 48.0 mm(D) (Typ.)Outline Dimension 31.51 inches(800.4mm) diagonalActive Screen Size 1. General Description The LC320WXN is a Color Active Matrix Liquid Crystal Display with an integral External Electrode Fluorescent Lamp(EEFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive display type which is operating in the normally black mode. It has a 31.51 inch diagonally measured active display area with WXGA resolution (768 vertical by 1366 horizontal pixel array). Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arrayed in vertical stripes. Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot. Therefore, it can present a palette of more than 16.7M (true) colors. It has been designed to apply the 8-bit 1-port LVDS interface. It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut, high color depth and fast response time are important. Source Driver Circuit S1 S1366 Mini-LVDS(RGB) Timing Controller LVDS Rx + OPC + DGA + ODC Integrated EEPROM Power Circuit Block SDASCL Back light Assembly Control Signals Power Signals 3PinX1CN(High) 3PinX1CN(High) EXTVBR-B Status Inverter +24.0V, GND LVDS 1 Option signal I2C LVDS Select CN1 (30pin)LVDS 1Port +12.0V OPC Enable ExtVBR-B VBR-B out TFT - LCD Panel (1366 ×768 X RGB pixels) [Gate In Panel] G768
Table 1. ABSOLUTE MAXIMUM RATINGS
- Ambient temperature condition (Ta = 25 ± 2 °C )
- Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be Max 39°C, and no condensation of water.
- Gravity mura can be guaranteed below 40°C condition.
- The maximum operating temperatures is based on the test condition that the surface temperature
of display area is less than or equal to 68°C with LCD module alone in a temperature controlled chamber. improper thermal management in final product design.
backlight and inverter circuit.
- Electrical Specifications
Table 2. ELECTRICAL CHARACTERISTICS
- The specified current and power consumption are under the VLCD =12.0V, Ta=25 ±2°C, fV =60Hz
condition whereas mosaic pattern(8 x 6) is displayed and fV is the frame frequency.
- The current is specified at the maximum current pattern.
- The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
- Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 120
24Vand VBR (EXTVBR-B: 100%), it is total power consumption.
- Electrical characteristics are determined within 30 minutes at 25±2°C.
The specified currents are under the typical supply Input voltage 24V.
- The brightness of the lamp after lighted for 5minutes is defined as 100%.
TS is the time required for the brightness of the center of the lamp to be not less than 95% at typical current. The screen of LCD module may be partially dark by the time the brightness of lamp is stable after turn on.
- Specified Values are for a single lamp which is aligned horizontally.
- LGD recommend that the PWM freq. is synchronized with two times harmonic of Vsync signal of system.
- The duration of rush current is about 10ms.
- EXTVBR-Bis based on input PWM duty of the inverter.
electronics and 14-pin connector is used for the integral backlight system. Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION Note 1. All GND(ground) pins should be connected together to the LCD module’s metal frame.
- All VLCD (power input) pins should be connected together.
- All Input levels of LVDS signals are based on the EIA 644Standard.
- Specific pins(pin No. # 10 & #27~#28) are used for OPC function of the LCD module.
NoteDescriptionSymbolPin No.
Table 5. INVERTER CONNECTOR PIN CONFIGULATION
6 GND Backlight Ground GND
7 GND Backlight Ground GND
8 GND Backlight Ground GND
9 GND Backlight Ground GND
10 GND Backlight Ground GND
11 NC No Connection NC
12 V ON/OFF Backlight ON/OFF control V ON/OFF
13 EXTVBR-B External PWM EXTV BR-B
14 Status Lamp Status Status 2
- GND should be connected to the LCD module’s metal frame.
- Normal : Low (under 0.7V) / Abnormal : High (upper 3.0V)
Please see Appendix IV-1for more information.
- The impedance of pin #12 is over 100 [KΩ] & the impedance of Pin #13 is over 50[KΩ].
Ver. 1.0 3-3. Signal Timing Specifications Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal timings should be satisfied with the following specification for normal operation. Table 6-1. TIMING TABLE for NTSC (DE Only Mode) Horizontal Vertical tHP240228tVBBlank tHP-768-tVVDisplay Period tHP1008790776tVPTotal Total Blank Display Period tHP tHB tHV Symbol tclk177615281456 tclk41016290 tclk-1366- NoteUnitMaxTypMinITEM Frequency Vertical Horizontal DCLK fV fH fCLK Hz636057 KHz5547.445 MHz80.072.463.0 Table 6-2. TIMING TABLE for PAL (DE Only Mode) Horizontal Vertical tHP295180126tVBBlank tHP-768-tVVDisplay Period tHP1063948894tVPTotal Total Blank Display Period tHP tHB tHV Symbol tclk177615281456 tclk41016290 tclk-1366- NoteUnitMaxTypMinITEM Frequency Vertical Horizontal DCLK fV fH fCLK Hz535047 KHz5547.445 MHz80.072.463.0 The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode). The performance of the electro-optical characteristics may be influenced by variance of the vertical refresh rate. Note
Ver. 1.0 0.7VDD 0.3VDD tCLK Invalid data Valid data Invalid dataPixel 0,0 Pixel 2,0 DE(Data Enable)
0.5 VDD
DE(Data Enable) DCLK First data DE, Data 3-4. LVDS Signal Specification tHV tVV tVP 1 768 3-4-1. LVDS Input Signal Timing Diagram
Ver. 1.0 1) DC Specification 2) AC Specification -V 1.80.7V INLVDS Input Voltage Range -mV250ΔVCMChange in common mode Voltage -V 1.51.0V CMLVDS Common mode Voltage NoteUnitMaxMinSymbolDescription LVDS 1’st Clock T clk LVDS 2 nd/ 3rd/ 4thClock tSKEW_min tSKEW_max 20% 80% A tRF LVDS Data tSKEW LVDS Clock T clk (Fclk= 1/T clk)tSKEW A 1. All Input levels of LVDS signals are based on the EIA 644 Standard. 2. IftRF isn’t enough, teff should be meet the range. 3. LVDS Differential Voltage is defined within t eff mV300100V TH LVDS Differential Voltage mV-100-300V TL -ps±360teffEffective time of LVDS NoteUnitMaxMinSymbolDescription -ps|(0.25*Tclk )/7|tSKEWLVDS Clock to Data Skew Margin T clk1/7* TclktSKEW_EOLVDS Clock to Clock Skew Margin (Even to Odd) 260 ps(0.3*Tclk )/7tRFLVDS Clock/DATA Rising/Falling time LVDS + LVDS - V CM # V CM = {( LVDS +) + ( LVDS - )} /2 V IN _ MAX V IN _ MIN High Threshold Low Threshold Note 3-4-2. LVDS Input Signal Characteristics
Ver. 1.0 data data Vcm tui0.5tui 360ps 360ps tui : Unit Interval teff clk clk Vcm VTH VTL
The brightness of each primary color(red,green,blue) is based on the 8 bit gray scale data input for the color. The higher binary input, the brighter the color. Table 7 provides a reference for color versus data input. Table 7. COLOR DATA REFERENCE
Table 8. POWER SEQUENCE
- Please avoid floating state of interface signal at invalid period.
- When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.
- The T3 / T4 is recommended value, the case when failed to meet a minimum specification,
abnormal display would be shown. There is no reliability problem.
- If the on time of signals(Interface signal and user control signals) precedes the on time of Power(VLCD ),
it will be happened abnormal display. When T6 is NC status,T6 doesn’t need to be measured.
- T5 should be measured after the Module has been fully discharged between power off and on
- It is recommendation specification that T8has to be 100ms as a minimum value.
Table 9. Power Sequence for Inverter Notes : 1. T1 describes rising time of 0V to 24V and this parameter does not applied at restarting time.
- It is the recommendation to input Max Duty to Inverter** for EXTVBR-B during T7 period.
**When OPC Function is applied, the Max Duty is input to T-Con.
- The recommendation of VON/OFFrising time is under 10ms.
It is presented additional information concerning the measurement equipment and method in FIG. 1. Table 10. OPTICAL CHARACTERISTICS
Table 11. GRAY SCALE SPECIFICATION It is measured at center 1-point.
- Surface luminance are determined after the unit has been ‘ON’ and 1 Hour after lighting the
1-point across the LCD surface 50cm from the surface with all pixels displaying white. For more information see the FIG. 2.
- The variation in surface luminance , δ WHITE is defined as :
Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations . For more information, see the FIG. 2.
- Response time is the time required for the display to transit from G(N) to G(M) (Rise Time, TrR )
※ G to G Spec stands for average value of all measured points.
- Gray to Gray Response time uniformity is Reference data. Please see Appendix V.
- Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are
is normal to the LCD module surface. For more information, see the FIG. 4. Gamma Value is approximately 2.2. For more information, see the Table 11.
Ver. 1.0 FIG. 3 Response Time Response time is defined as the following figure and shall be measured by switching the input signal for “Gray(N)” and “Gray(M)”. FIG. 2 5 Points for Luminance Measure A : H / 4 mm B : V / 4 mm @ H,V : Active Area H A V B ①① ①① ③③ ③③②② ②② ⑤⑤ ⑤⑤④④ ④④ Gray(M)Gray(N) T rR T rD 100 Optical Response N,M = Black~White, N<M Gray(N) Measuring point for surface luminance & luminance variation
Ver. 1.0 FIG. 4 Viewing Angle Dimension of viewing angle range Normal Y E φ θ φ = 0°, Right φ = 180°, Left φ = 270°, Down φ = 90°, Up
Table 12 provides general mechanical characteristics.
- Mechanical Characteristics
Table 12. MECHANICAL CHARACTERISTICS Note : Please refer to a mechanical drawing in terms of tolerance at the next page.
Ver. 1.0 [ FRONT VIEW ]
Ver. 1.0 [ REAR VIEW ]
Table 13. ENVIRONMENT TEST CONDITION Note : Before and after Reliability test, LCM should be operated with normal function.
Ver. 1.0 7. International Standards 7-1. Safety a) UL 60065, Seventh Edition, Underwriters Laboratories Inc. Audio, Video and Similar Electronic Apparatus - Safety Requirements. b) CAN/CSA C22.2 No.60065:03, Canadian Standards Association. Audio, Video and Similar Electronic Apparatus - Safety Requirements. c) EN 60065:2002 + A11:2008, European Committee for Electrotechnical Standardization (CENELEC). Audio, Video and Similar Electronic Apparatus - Safety Requirements. d) IEC 60065:2005 + A1:2005, The International Electrotechnical Commission (IEC). Audio, Video and Similar Electronic Apparatus - Safety Requirements. 7-3. Environment a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003 7-2. EMC a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.” American National Standards Institute (ANSI), 2003. b) CISPR 22 “Information technology equipment – Radio disturbance characteristics – Limit and methods of measurement." International Special Committee on Radio Interference (CISPR), 2005. c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio disturbance characteristics – Limits and method of measurement." International Special Committee on Radio Interference (CISPR), 2006.
Ver. 1.0 a) Lot Mark A B C D E F G H I J K L M Note 1. YEAR b) Location of Lot Mark 2. MONTH 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 Pallet : 30 pcs b) Pallet Size : 1140 mm X 870 mm X 1161 mm. B Nov Mark Month A Oct Jun Jul Aug Sep Apr May C4 2 1 DecMarFebJan 8. Packing Mark Year 2010 2006 2007 2008 2009 2004 2005 3 2 1 200320022001 A,B,C : SIZE(INCH) D : YEAR E : MONTH F ~ M : SERIAL NO. 8-1. Information of LCM Label
Ver. 1.0 Please pay attention to the followings when you use this TFT LCD module. 9-1. Mounting Precautions (1) You must mount a module using specified mounting holes (Details refer to the drawings). (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 benzine. 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 9. 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. (7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated its full characteristics perfectly. (8) A screw which is fastened up the steels should be a machine screw. (if not, it can causes conductive particles and deal LCM a fatal blow) (9) Please do not set LCD on its edge. (10) The conductive material and signal cables are kept away from transformers to prevent abnormal display, sound noise and temperature rising. (11) Partial darkness may happen during 3~5 minutes when LCM is operated initially in condition that luminance is under 40% at low temperature (under 5℃). This phenomenon which disappears naturally after 3~5 minutes is not a problem about reliability but LCD characteristic.
Ver. 1.0 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. 9-3. Electrostatic Discharge Control Strong light exposure causes degradation of polarizer and color filter. 9-4. Precautions for Strong Light Exposure 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. 9-5. Storage 9-6. Handling Precautions for Protection Film (1) The protection film is attached to the bezel with a small masking tape. 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) 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 bezel after the protection film is peeled off. (3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized, please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal- hexane. (12) Partial darkness may happen under the long-term operation of any dimming without power on/off. This phenomenon which disappears naturally after 5 minutes is not a problem about reliability but LCD characteristics. 9-7. Packing design precautions for panel damage (1) We recommend to apply the 1 Piece integration packing or 3 piece (for supporting Cover Bottom) division packing, because Panel Crack or Panel missing can be occurred in Set Packing Design, when TV Set is dropping or falling in the tilt from transportation environment, (refer to Appendix VII)
Ver. 1.0 # APPENDIX-I-1 ■■ ■■ LC320WXN-SCA1 – Packing Ass’y NO. DESCRIPTION MATERIAL
1 LCD Module
2 BAG AL
3 TAPE MASKING 20MMX50M
4 Packing,Top EPS
5 Packing,Bottom EPS
6 BOX PAPER_DW3
7 TAPE OPP 70MMX300M
8 Label ART 100X70
Ver. 1.0 # APPENDIX-I-2 ■■ ■■ LC320WXN-SCA1 – Pallet Ass’y Box quantity per pallet: 6ea Pallet size: L1140 x W870 x H1161 PAPERLABEL6 PAPER (SWR4)ANGLE, PACKING5 STEELCLIP, BAND4 PPBAND3 PlywoodPALLET2 PACKING ASS’Y1 MATERIALDESCRIPTIONNO.
Ver. 1.0 # APPENDIX-I-3 ■■ ■■ Recommendation structure for SET Packing Ass’y : Recommend structure that extend SET lower column department holder with Case1 or Case 2 SET PACKING, TOP L_R3 SET PACKING, BOTTOM R_L4 SET PACKING, BOTTOM _ CENTER5 SET PACKING, BOTTOM2 SET MODULE1 DESCRIPTIONNO.
- Case 1. : 1 Piece Bottom Packing Type
- Case 2. : 3 Piece Bottom Packing Type (Add Center Packing)
Ver. 1.0 LC320WXNLC320WXNLC320WXNLC320WXN (SC)(A1)(SC)(A1) (SC)(A1)(SC)(A1) ■ LC320WXN-SCA1-LCM Label Model Serial No.UL, TUV Mark LGD Logo US PATENT No. Origin # APPENDIX- II-1 ■■ ■■ Serial No. (See CAS 25page for more information) 1 2 3 4 5 6 7 9 10 11 12 Inch M Ass’y Factory code Serial No. MonthYear
Ver. 1.0 ■ LC320WXN-SCA1-Pallet Label # APPENDIX- II-2 ■ LC320WXN-SCA1-Box Label LC320WXN SCA1
5 PCS
30 PCS
Ver. 1.0 # APPENDIX- III-1 ■ Required signal assignment for Flat Link (DS90C385) Transmitter(Pin9=“L”) Note: 1. The LCD Module uses a 100 Ohm[Ω] resistor between positive and negative lines of each receiver input. 2. Refer to LVDS Transmitter Data Sheet for detail descriptions. (DS90C385 or Compatible) 3. ‘7’ means MSB and ‘0’ means LSB at R,G,B pixel data. RED0 RED1 RED2 RED3 RED4 RED5 RED6 RED7 GREEN0 GREEN1 GREEN2 GREEN3 GREEN4 GREEN5 GREEN6 GREEN7 BLUE0 BLUE1 BLUE2 BLUE3 BLUE4 BLUE5 BLUE6 BLUE7 Hsync Vsync Data Enable CLOCK Host System
24 Bit
100 ΩΩ ΩΩ 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ FI-X30SSL-HF Timing Controller LCD Module GND GND
Ver. 1.0 # APPENDIX- III-1 ■ Required signal assignment for Flat Link (DS90C385) Transmitter(Pin9=“H”) Note: 1. The LCD Module uses a 100 Ohm[Ω] resistor between positive and negative lines of each receiver input. 2. Refer to LVDS Transmitter Data Sheet for detail descriptions. (DS90C385 or Compatible) 3. ‘7’ means MSB and ‘0’ means LSB at R,G,B pixel data. RED0 RED1 RED2 RED3 RED4 RED5 RED6 RED7 GREEN0 GREEN1 GREEN2 GREEN3 GREEN4 GREEN5 GREEN6 GREEN7 BLUE0 BLUE1 BLUE2 BLUE3 BLUE4 BLUE5 BLUE6 BLUE7 Hsync Vsync Data Enable CLOCK Host System 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ 100 ΩΩ ΩΩ FI-X30SSL-HF Timing Controller LCD Module Vcc GND
Ver. 1.0 # APPENDIX- III-2 ■ LVDS Data-Mapping Information (8 Bit) 1) LVDS Select : “H” Data-Mapping (JEIDA format) 2) LVDS Select : “L” Data-Mapping (VESA format) R17 R16 R15 R14G12 R13R12’ R12R13’ G12” B12 G17 G16 G15B13 G14G13’ G13G14’ B13” VSYNC HSYNC B17 B16DE B15B14’ B14B15’ DE” B11 B10 G11 G10X R11R10’ R10R11’ X” RCLKP RCLKM RAP RBP RCP RDP R15 R14 R13 R12G10 R11R10’ R10R11’ G10” B10 G15 G14 G13B11 G12G11’ G11G12’ B15” VSYNC HSYNC B15 B14DE B13B12’ B12B13’ DE” B17 B16 G17 G16X R17R16’ R16R17’ X” RCLKP RCLKM RAP RBP RCP RDP
Ver. 1.0 # APPENDIX- III-3 ■ Option PinCircuit Block Diagram 1) Circuit Block Diagram of LVDS FormatSelection pin ASIC (TCON) 50K ΩΩ ΩΩ System Side LCM Side LVDS Select (Pin 9) LVDS Select 1K ΩΩ ΩΩ LVDS Select Pin : Pin 9 2) Circuit Block Diagram of OPC EnableSelection pin ASIC (TCON) System Side LCM Side OPC_Enable (Pin 10) OPC_Enable OPC Enable Pin : Pin 10 R1 ≤≤ ≤≤ 1K ΩΩ ΩΩ 1K ΩΩ ΩΩ VCC OPEN 50K ΩΩ ΩΩ
Ver. 1.0 1) When OPC Enable is “L", OPC Output = System Dimming. 2) OPC Output( PWM Signal) is synchronized with V-Sync Freq. of System in T-Con Board. 3) Regardless of OPC, System should always give dimming Signal (EXTVBR-B) to T-con. 4) PWM Specification ( VCC = 3.3V ) @ OPC a) PWM High Voltage Range : 2.5 V ~ 3.6 V b) PWM Low Voltage Range : 0.0 V ~ 0.8 V MAX 10.0 μsFalling Time MAX 10.0 μsRising Time MAX 1Khz (Recommendation: 50~300Hz) Input Frequency VCC*0.9 VCC*0.1 Rising Time Falling Time VCC # APPENDIX- III-4 ■ EXTVBR-B & OPC Design Guide 3 pin Backlight Unit 3 pin System 3030 3030#1#1 #1#1 3.3V3.3V 3.3V3.3V OPC OffOPC Off OPC OffOPC Off OPC OnOPC On OPC OnOPC On HD LCM Control Board T-Con #10 : OPC Enable Pin #28 : EXTVBR-BInput #27 : OPC-OUT EXTVBR-B PWM ( Async. or Sync.) OPC Output PWM ( Sync.), Open(MAX)
Ver. 1.0 # APPENDIX- IV-1 ■ Inverter 14thPin (Status) Design Guide - Purpose : Preventing of backlight off by restarting the inverter technically - How to : When inverter is abnormal operation, TV system inputs the Von signal in the inverter once more to turn on the lamp safely - Attention : Restart system’s Von signal when status pin is high for some time (min:1sec , max:4sec). (The turn on time of lamp can be late such as the low temperature or the storage time) - Purpose : Preventing of backlight off by restarting the inverter technically - How to : When inverter is abnormal operation, TV system inputs the Von signal in the inverter once more to turn on the lamp safely - Attention : Restart system’s Von signal when status pin is high for some time (min:1sec , max:4sec). (The turn on time of lamp can be late such as the low temperature or the storage time) 1) Function of Status pin System Von Status level low System Von Lamp turn on 2) Status operation modes in TV set2) Status operation modes in TV set Normal Mode Fail of Lamp turn on Again System Von Status level High Feedback to system Lamp turn on Status operation mode Inv.DescriptionSymbolPin No NCNo ConnectionNC11 On/Off0.0V ~ 5.0VV ON/OFF12 statusNormal : Under 0.7V / Abnormal : Upper 3.0VStatus14 External PWMBurst Dimming Control PWM signal inputEXTVBR-B13 3) Inverter pin map3) Inverter pin map Lamp ON V ON Restart VON Status VON/OFF [12pin] Backlight Status [14pin] System Inverter Fail 1sec ~4sec More than 0.1sec
Ver. 1.0 # APPENDIX- IV-2 ■ Mega DCRUsing Condition (1) T0 = Min 1 [sec] Min 3[min] Output currentOutput currentOutput currentOutput current Inverter ON signalInverter ON signalInverter ON signalInverter ON signal LAMP ONLAMP ON LAMP ONLAMP ON Max duty Duty (Min ~ Max duty) The Deep Dimming must be used very carefully due to limitation of lamp characteristics and specification. 1) For stable lamp on, its duty condition should follow below the condition. After Inverter ON signal, T0 duration should be sustained.
- The Deep Dimming means using the input PWM duty less than Min duty. The input PWM duty (Min & Max duty) refer to the table 3 on the page 6. 2) B/L may not satisfy some of LCM specification at the Deep Dimming. - Duration : The Deep Dimming must be limited within 10 minutes. - Ratio : The operation time of the Deep Dimming must be less than 1/5 time of the Normal Duty (Min ~ Max duty) operation in a certain period to prevent unwanted operation. - FOS : Partial darkness or darkness of center area during the Deep Dimming might be happened due to insufficient lamp current. - Warm up : The Normal Duty (Min ~ Max duty) must be used 3 min after the lamps “ON”. In case of low temperature, more warm up time may be needed.
Ver. 1.0 # APPENDIX- IV-2 ■ Mega DCRUsing Condition (2) T2 T3T1 T2 Output currentOutput currentOutput currentOutput current 3) Following the recommended conditions as aforementioned, there is no difference of lamp lifetime between conventional method and new one. Parameter Value Unit Condition Min Typ Max T1 3 - - min Min ~ Max duty T2 - - 10 min 0 ~ Min duty T3 T2 x 5 - - min Min ~ Max duty
Ver. 1.0 # APPENDIX- V ■ Gray to Gray Response Time Uniformity (δδ δδ G TO G ) This is only the reference data of G to G and uniformity for LC320WXN-SCA1 model. 1. G to G Response Time : Response time is defined as Figure3 and shall be measured by switching the input signal for “Gray (N) ” and “Gray(M)”.(32Gray Step at 8bit) 2. G to G Uniformity The variation of G to G Uniformity , δ G to Gis defined as : *Maximum (GtoG) means maximum value of measured time (N, M = 0 (Black) ~ 255(White), 32 gray step). 3. Sampling Size : 2 pcs 4. Measurement Method : Follow the same rule as optical characteristics measurement. TrR:0G /barb2right255GTrR:0G /barb2right223G…TrR:0G /barb2right64GTrR:0G /barb2right32G0Gray TrD:255G /barb2right0G TrD:223G/barb2right0G TrD:64G /barb2right0G TrD:32G/barb2right0G 0Gray TrD:255G /barb2right223G…TrD:255G /barb2right64GTrD:255G /barb2right32G255Gray TrR:223G/barb2right255G…TrD:223G/barb2right64GTrD:223G/barb2right32G223Gray TrR:64G /barb2right255GTrR:64G /barb2right223G…TrD:64G /barb2right32G64Gray TrR:32G/barb2right255GTrR:32G/barb2right223G…TrR:32G/barb2right64G32Gray 255Gray223Gray…64Gray32Gray G to G Uniformity = ≤1) ( ) ( ) ( GtoGTypical GtoGTypicalGtoGMaximum − 5. Current Status Below table is actual data of production on Dec. 17.2009 ( LGD RV Event Sample) Sample G to G Response Time [ms] Uniformity Min. Max. # 1 6.0 10.2 0.93 # 2 6.3 10.3 0.91 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 - 1 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 FallingRising G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 G 2 5 5 G 2 2 3 G 1 9 1 G 1 5 9 G 1 2 7 G 9 5 G 6 3 G 3 1 G 0 FallingRising