User manual PLANAR LC640.480.33-AC - Operations Manual

Operations Manual LC640.480.33-AC HIGH BRIGHTNESS 10.4" COLOR TFT AMLCD ® The Definition of Quality Copyright © 1999 by Planar Systems, Inc. Planar and The Definition of Quality are registered trademarks. ColorBrite is a trademark of Planar Systems, Inc. This document is subject to change without notice. Planar provides this information as reference only and does not imply any recommendation or endorsement of other vendor's products. Revision Control Date Description May 1999 Document number OM600-01 Contents LC640.480.33-AC Display .............................................................................................................. 3 Features and Benefits................................................................................................................... 3 Installation and Handling................................................................................................................. 4 Mounting the Display .................................................................................................................. 4 Mounting Display Face Down................................................................................................. 4 Mounting ECA Face Down...................................................................................................... 4 Vent Clearance ........................................................................................................................ 5 Isolation/Air Gap..................................................................................................................... 5 Ambient Light Sensor Clearance............................................................................................. 5 Cable Length................................................................................................................................ 5 Cleaning ....................................................................................................................................... 5 Avoiding Image Retention ........................................................................................................... 5 Specifications................................................................................................................................... 6 Environmental Characteristics..................................................................................................... 6 Mechanical Characteristics.......................................................................................................... 6 Optical Characteristics................................................................................................................. 7 Safety and EMI ............................................................................................................................ 7 Reliability and Backlight Life...................................................................................................... 7 Interfacing and Operation ................................................................................................................ 8 Control Basics.............................................................................................................................. 8 Power Requirements................................................................................................................ 8 Undervoltage Lockout (Backlight only) .................................................................................. 8 Power Sequencing (LCD only) ................................................................................................ 8 Backlight Signals ..................................................................................................................... 9 Video Signals............................................................................................................................. 10 Video Signal Characteristics ................................................................................................. 10 Video Modes .......................................................................................................................... 10 Signal Timing......................................................................................................................... 11 Video Characteristics................................................................................................................. 15 Pixel Position......................................................................................................................... 16 Connectors ................................................................................................................................. 16 Video Connector (J3)............................................................................................................. 17 Dimming Connector (J2) ....................................................................................................... 18 Backlight Power Connector (J1) ........................................................................................... 18 Optical Features ............................................................................................................................. 19 Viewing Angle ........................................................................................................................... 19 Response Times ......................................................................................................................... 19 Dimming .................................................................................................................................... 19 Backlight Dimming Modes .................................................................................................... 20 Dimming Control Interfacing ................................................................................................ 20 Inverting the Display.................................................................................................................. 21 Temperature Considerations ...................................................................................................... 22 Thermal Shutdown ................................................................................................................. 22 Luminance Variation Due to Ambient Temperature ............................................................. 22 Warm-up Characteristic ........................................................................................................ 23 Display Dimensions....................................................................................................................... 23 Figures Figure 1. Mounting Options......................................................................................................... 4 Figure 2. Power Sequencing. ....................................................................................................... 9 Figure 3. VL Supply Dropouts. .................................................................................................... 9 Figure 4. Image centering. ......................................................................................................... 10 Figure 5. Timing Diagram, 480-line mode. ............................................................................... 12 Figure 6. Timing Diagram, 400-line mode. ............................................................................... 13 Figure 7. Timing Diagram, 350-line mode. ............................................................................... 14 Figure 8. Pixel position of input data (480-line mode).............................................................. 16 Figure 9. Connector Locations................................................................................................... 16 Figure 10. Viewing Angles. ....................................................................................................... 19 Figure 11. Response Times........................................................................................................ 19 Figure 12. Dimming Control Methods....................................................................................... 20 Figure 13. Luminance vs. Temperature. .................................................................................... 22 Figure 14. Warmup Curve. ........................................................................................................ 23 Figure 15. Display Dimensions.................................................................................................. 24 Tables Table 1. Mounting Hardware....................................................................................................... 4 Table 2. Environmental Characteristics....................................................................................... 6 Table 3. Mechanical Characteristics............................................................................................ 6 Table 4. Optical Characteristics................................................................................................... 7 Table 5. Backlight Life. ............................................................................................................... 7 Table 6. Input Power.................................................................................................................... 8 Table 7. Backlight Signal DC Characteristics. ............................................................................ 9 Table 8. Video Signal DC Characteristics................................................................................. 10 Table 9. Video Modes................................................................................................................ 10 Table 10. Video signal timing.................................................................................................... 11 Table 11. Vertical mode video signal timing............................................................................. 11 Table 12. Video Data Color/Grayscale Map ............................................................................. 15 Table 13. Video Connector (J3) Pinouts. .................................................................................. 17 Table 14. Dimming Connector (J2) Pinouts. ............................................................................. 18 Table 15. Backlight Power Connector (J1) Pinouts................................................................... 18 Table 16. Backlight Dimming Modes........................................................................................ 20 Table 17. Inverting the Display. ................................................................................................ 21 2 LC640.480.33-AC Operations Manual (OM600-01) LC640.480.33-AC Display The LC640.480.33-AC is a 1000 nit 10.4" diagonal VGA color AMLCD flat panel display module intended for commercial applications requiring outdoor viewability and long life. Special attention to the total backlight design gives the display a wide, "singleBEF" viewing angle while maintaining luminance efficiency greater than 45 nit/W. The display is convection cooled and does not require a fan, yet features a wide operating temperature range. It is lightweight, compact, and rugged, and includes an integrated inverter in a package approximately one inch thick. With fast cell response and an 18-bit (6 bits per color) video interface, this display can show full motion video images. The LC640.480.33-AC is designed, tested, and characterized as an integrated system made up of two subassemblies. The LCD subassembly includes a sealed optical cavity, and the backlight/inverter subassembly includes a cold cathode fluorescent (CCFL) backlight and inverter. Due to the sealed optical cavity, the backlight subassembly may be replaced without exposing the back of the LCD cell and optical films to airborne contaminants. Features and Benefits 1000 nit typical luminance for sunlight-readability 3:1 contrast @ 100K Lux ambient for outdoor daylight use Wide +40/-60° vertical / ±70° horizontal viewing angle 100:1 digital dimming for efficient control over a wide range of ambient light 18-bit (6 bits per color) display interface for wide color range (262,144 colors) 30,000 hours MTBF for long service-free operating life Durable and lightweight enclosure for rugged conditions Convection cooling for operation without cooling fans 3H diffuse hard coated front surface for scratch protection Modular design for easy field replacement of backlight and inverter Automatic shutdown at low and high temperature extremes for product safety LC640.480.33-AC Operations Manual (OM600-01) 3 Installation and Handling Do not drop, bend, or flex the display. Do not allow objects to strike the surface of the display. Mounting the Display To maximize shock and vibration performance, the display must be properly mounted using all four mounting hole locations. There are two recommended mounting configurations as shown in Figure 1 using the hardware listed in Table 1 below. Appropriate changes to these mounting configurations may be needed to meet specific requirements or applications. Figure 1. Mounting Options. Display Face Down Table 1. Mounting Hardware. Screw Washer Tightening torque ECA Face Down #6 SS, hex head or hex washer head, or M3 SS hex head or hex washer head Bearing washer for display face down bearing application only Lockwasher, external type 4 oz-in \ 2.8x105 dyne ­ cm Mounting Display Face Down Standoff spacers with a minimum height of 0.102" (2.59 mm) must be used at all four mounting locations to prevent binding and deflection of the display. Threaded studs anchored in a bezel would be a design variation of this mounting option. Mounting ECA Face Down When mounting the display with the mounting screws installed from the viewing side, it is not necessary to incorporate a flat washer. Provide for proper vent clearance and an air gap/isolation allowance of 0.197" (5 mm) or better as described below. 4 LC640.480.33-AC Operations Manual (OM600-01) Vent Clearance The LC640.480.33-AC display is a wide temperature display utilizing convection cooling. It is imperative to allow ambient air unrestricted access to the cooling vents in order to reliably operate the display at high temperatures The vents for the lamp cavity are along the top and bottom edges of the display with the openings facing the rear. The vents for the inverter cavity are along the top and bottom faces of the display: four along the top surface and four along the bottom surface. Refer to the mechanical outline drawing in Figure 15 for vent locations. Isolation/Air Gap The display generates high voltage AC to drive the CCFL tubes. High voltage is present at numerous points on the backlight/inverter ECA which forms the rear surface of the display, so your application should not place metal too near the ECA. In the interests of both high voltage isolation and airflow for cooling, it is recommended that an air gap of .197" (5 mm) or greater be maintained behind the display. Ambient Light Sensor Clearance Two backlight dimming modes utilize automatic brightness control (ABC). If the display is to be operated in either of these modes, the ambient light sensor located on the front bezel must be unobstructed. If the sensor is placed behind the same protective window as the display active (viewing) area, the sensor operation may be affected due to light scattering and reflections from display-generated light coupling to the sensor via the window. Cable Length Due to the high frequencies present on the video interface, unterminated video cable lengths of more than two feet (600 mm) are discouraged. Cleaning Care should be taken to minimize scratching. Clean the display front with a dry, soft cloth such as a professional photographic lens cleaner. Disposable cleaning cloths are recommended to minimize the risk of inadvertently scratching the display with particles embedded in a re-used cloth. Particular care should be taken when cleaning displays with polarizers or anti-glare and anti-reflective films. These films may delaminate if exposed to certain chemicals. Avoiding Image Retention Image retention may occur when a fixed pattern is displayed for a long time. Use a screen saver or image inversion to avoid image retention on the display. LC640.480.33-AC Operations Manual (OM600-01) 5 Specifications Performance characteristics are guaranteed with the display at room temperature (25 °C) and with the operating voltage within specifications, unless otherwise specified. Optical performance is referenced to screen center at normal incidence and with the backlight at maximum luminance unless otherwise specified. Environmental Characteristics Table 2. Environmental Characteristics. Temperature Operating Operating survival Storage Humidity -10 to +70 °C -20 to +80 °C -25 to +85 °C 95% RH @ 40 ºC, Non-condensing, per IEC 68-2-3 10K ft per IEC 68-2-13 40K ft per IEC 68-2-13 0.02 g /Hz, 5-500 Hz, 30 min. ea. axis, per IEC 68-2-34 100 g, 6 ms, half sine wave, 3 shocks per surface, per IEC 68-2-27 2 Operating Altitude Operating Non-operating Vibration (random) Operating Shock Operating Mechanical Characteristics Refer to mechanical outline drawing in Figure 15 on page 24. Table 3. Mechanical Characteristics. Display External Dimensions (millimeters (inches)) width height depth 272.3 (10.72) nominal 199.9 (7.87) nominal 27.0 (1.06) nominal 900 g (31.7oz) Weight (typical) Display Active Area (millimeters (inches)) width height Pixel Pitch 211.2 (8.31) nominal 158.4 (6.24) nominal (millimeters (inches)) width height .33 (.0129) nominal .33 (.0129) nominal 6 LC640.480.33-AC Operations Manual (OM600-01) Optical Characteristics Table 4. Optical Characteristics. Luminance Typical Minimum Contrast Ratio 1000 NITs at screen center, initial 900 NITs at screen center, initial 200: 1 typical, 150:1 minimum 150:1 typical 50:1 typical 3:1 typical x = .339 typical y = .353 typical With a white screen, max difference between any 2 of 5 points is defined as follows: Lnu(%) = (1- (Lmin/Lmax)) x 100% 50:1 initial, 100:1 stabilized (Lmax after > 15 minutes at max. lum., then Lmin at min. lum; dimming range = Lmax/Lmin) Visible light filtered ~420 to 675nm @ 50% pts. ±50 degrees typical to half sensitivity 0 to 3000 Lux typ.; assumes 18% scene reflectance ±70 degrees typ., White/black CR 5 +40/-60 degrees typ., White/black CR 5 Dark room ambient 500 Lux ambient 3K Lux ambient 100K Lux ambient Color Coordinates White field Luminance Non-uniformity 31% maximum Luminance Control (typical) Dimming range Ambient Light Sensor Response Field of view Dynamic range Viewing Angle Horizontal Vertical (See Figure 10) Safety and EMI The display will not inhibit the end product from compliance with UL1950, CSA22.2, and IEC950.The display will not inhibit the end product from complying with FCC Part 15, Subpart J, Class B or EN55022 Class B when housed in a suitable enclosure. Reliability and Backlight Life The demonstrated system MTBF is to be greater than 30,000 hours with a 90% confidence level at 25 °C. Refer to the following table for backlight life. Table 5. Backlight Life. Usage Backlight life (typical to 50% of initial luminance) Continuous at full luminance Continuous at half luminance Typical use using ABC* * Automatic brightness control 20K hours 100K hours 35K hours LC640.480.33-AC Operations Manual (OM600-01) 7 Interfacing and Operation Control Basics Power Requirements The LC640.480.33-AC display requires two power supplies: +5 Vdc for the LCD logic and +12 Vdc for the backlight. In Table 6 below, the backlight current and power are referenced to maximum luminance, 25 °C ambient temperature. Table 6. Input Power Symbol Backlight Min Typ Max Units Backlight voltage Absolute max. voltage Steady state current (VH = +12 Vdc) Peak start-up current (VH = +12 Vdc) Power (VH = +12V) LCD VH VHMAX IH IHSU PH VL VLMAX VL IL PL +10.8 0 ­ ­ ­ 4.5 0 ­ ­ ­ +12.0 ­ 1.9 ­ 23 +5.0 ­ ­ 280 1.4 +13.2 +16 2.5 3.5 30 +5.5 6.0 100 450 2.3 Vdc Vdc Adc Adc W Vdc Vdc mVpp mAdc W LCD voltage Absolute max. voltage VL permissible ripple (VL = +5V) Current (VL = +5V) Power (VL = +5V) CAUTION: Absolute maximum ratings are those values beyond which damage to the device may occur. Undervoltage Lockout (Backlight only) An undervoltage lockout (UVLO) function is included which disables the backlight under excessively low VH conditions. The UVLO circuit will disable the backlight at approximately +8.5 Vdc as VH falls and will enable the backlight at approximately +9.5 Vdc as VH rises. Power Sequencing (LCD only) Certain restrictions on the behavior of the VL (+5 Vdc) source and in the application of the VL source relative to the application or removal of the video signals must be observed. These restrictions are shown in Figure 2, where "Vcc"= VL and "data" = video signals. 8 LC640.480.33-AC Operations Manual (OM600-01) Figure 2. Power Sequencing. 4.5V 2.7V Vcc 4.5V data where: t1 10ms 0< t2 10ms 0< t3 1s t1 t2 t3 Applying video signals before VL is applied may cause a latchup condition. Allowing VL to remain "on" for a long period of time after video signals are removed--which stops the cell scanning--may produce a latent image. In addition, there is a restriction regarding dropouts on the VL supply as illustrated in Figure 3 ("Vcc"= VL). This is related to the reset circuit for the LCD's internal logic. If a dip in VL exceeds 10 ms in duration or VL falls below 2.7 Vdc then the power sequencing procedure should be followed. Figure 3. VL Supply Dropouts. Vcc where: 4.5V 2.7V td td 10ms Backlight Signals The dimming control and /DISABL inputs are analog, though the latter is intended to be driven from either an open collector device or CMOS logic. The /ABCOFF input is a CMOS-compatible digital input. Table 7. Backlight Signal DC Characteristics. Description Min Max Units Symbol Absolute max. input voltage Dimming input voltage range Recommended pot. value RLUM HI source current /ABCOFF input /DISABL input -0.3 0 10 ­ +3.6 0 ­ +4.5 0 ­ +5.3 +5.0 100 600 +5.0 +1.4 0.5 +5.0 +1.0 1.3 Vdc Vdc K ohm µA Vdc Vdc mA Vdc Vdc mA VIMAX VRLUM RLUM IRLUM VIHA VILA IILA VIHD VILD IILD Note: Incorrect operation of the undervoltage lockout (UVLO) circuit may occur if the /DISABL input is allowed to operate between VILD and VIHD. LC640.480.33-AC Operations Manual (OM600-01) 9 Video Signals Video Signal Characteristics Video signal inputs on J3 are digital inputs and are compatible with CMOS logic. Table 8. Video Signal DC Characteristics. Description Symbol Minimum Maximum Units Absolute Maximum Input Voltage Low-level Input Voltage High-level Input Voltage Low-level Input Current1 High-level Input Current2 VImax VIL VIH IIL1 IIL2 IIH1 IIH2 -0.3 0 0.7VL ­ ­ ­ ­ VL + 0.3 0.3VL VL 1 60 1 60 Vdc Vdc Vdc µA µA µA µA 1. I IL1 applies to all signals except R/L and U/D. IIL2 applies to signals R/L and U/D. 2. IIH1 applies to all signals except ENAB, U/D, and R/L. IIH2 applies to signals ENAB, U/D, and R/L. Video Modes The video interface automatically recognizes 480-, 400-, and 350-line formats. Mode recognition depends on the polarity of the sync signals as shown in Table 9. Table 9. Video Modes. Mode 480 line 400 line 350 line Hsync (J3-3) Vsync (J3-4) negative negative negative positive positive negative In 400-line and 350-line modes, the screen image will be automatically centered as shown in Figure 4 below. Figure 4. Image centering. data invalid period 40 lines data invalid period 65 lines data period 400 lines data period 350 lines data invalid period 400 lines mode (TV=449) 40 lines data invalid period 350 lines mode (TV=449) 65 lines 10 LC640.480.33-AC Operations Manual (OM600-01) Signal Timing Video signal timing diagrams are shown in Figures 5, 6, and 7. The following table refers to these diagrams. Table 10. Video signal timing. Parameter Symbol Mode Min Typ Max Units Clock Data Horiz. sync Vertical sync freq hi time lo time setup time hold time cycle PW cycle 1/Tc Tch Tcl Tds Tdh TH THp TV PW Horiz.display time Horiz. to clock Vsync to Hsync Enable setup time hold time Hsync to Enable TVp THd THc TVh Tes Tep THe all all all all all all all all 480 400 350 all all all all ­ ­ ­ ­ 5 10 5 10 30.0 750 2 515 446 447 1 640 10 0 5 2 44 25.18 ­ ­ ­ ­ 31.78 800 96 525 449 449 ­ 640 ­ ­ ­ 640 ­ 28.33 ­ ­ ­ ­ ­ 900 200 560 480 510 34 640 Tc-10 TH-THp Tc-10 640 TH-664 MHz ns ns ns ns µs clock clock line line line line clock ns clock ns clock clock Table 11 below summarizes timing for the different vertical modes given typical vertical sync "cycle" (TV) values. In this table, data for line TVn is displayed as the first top row on the screen. Table 11. Vertical mode video signal timing. Mode Symbol 480 line 400 line 350 line V-data start V-data period V-display start V-display period TVs TVd TVn ­ 34 480 34 480 34 400 443-TV 480 61 350 445-TV 480 The LC640.480.33-AC display timing is fundamentally the same as the Sharp LQ10D421 display. Horizontal display position is determined by the rising edge of the ENAB signal, and the ENAB signal has no relation to the vertical display position. If ENAB is permanently low, display starts from the data at "C104" referred to in the timing diagrams in Figures 5, 6, and 7. ENAB should not be left at a logic high permanently. In 400 and 350 line modes, data should be at a logic low during the vertical invalid period. LC640.480.33-AC Operations Manual (OM600-01) 11 TH THp * Only when enable terminal is fixed "low" Tc Tch Tcl 0.7Vcc 0.3Vcc 0.3Vcc C1* C2* Tds Tdh Number of H-data 0.7Vcc D639 D640 Horizontal invalid data period 0.3Vcc THc THd 0.7Vcc 0.3Vcc Tcp Tcs C104* Number of clock 0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc 0.7Vcc THc 0.3Vcc 12 LC640.480.33-AC Operations Manual (OM600-01) D1 D2 D3 TV TVp 0.7Vcc 0.3Vcc 1 TVs 2 34 Number of line TVd Vertical invalid data period DH1 DH2 DH3 DH479 DH480 Number of V-data line Figure 5. Timing Diagram, 480-line mode. Horizontal invalid data period 0.3Vcc TVh Vertical invalid data period TH THp * Only when enable terminal is fixed "low" Tc Tch Tcl 0.7Vcc 0.3Vcc 0.3Vcc C1* C2* Tds Tdh Number of H-data 0.7Vcc D639 D640 Horizontal invalid data period 0.3Vcc THc THd 0.7Vcc 0.3Vcc Tcp Tcs C104* Number of clock 0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc 0.7Vcc THc 0.3Vcc Figure 6. Timing Diagram, 400-line mode. Horizontal invalid data period D1 D2 D3 TV 0.7Vcc TVp 0.3Vcc 0.7Vcc TVh 1 TVs Vertical invalid data period 2 34 Number of line TVd Vertical invalid data period DH1 DH2 DH3 DH399 DH400 LC640.480.33-AC Operations Manual (OM600-01) Number of V-data line 13 TH 0.7Vcc 0.3Vcc THc Tch Tcl 0.7Vcc 0.3Vcc 0.3Vcc C1* C2* Tds Tdh Number of H-data 0.7Vcc D639 D640 Horizontal invalid data period 0.3Vcc THc THd 0.7Vcc 0.3Vcc Tcp Tcs C104* Number of clock 0.3Vcc 0.3Vcc * Only when enable terminal is fixed "low" Tc 0.7Vcc 0.7Vcc THp 0.3Vcc 14 LC640.480.33-AC Operations Manual (OM600-01) D1 D2 D3 TV TVp 0.7Vcc 0.3Vcc 1 TVs Vertical invalid data period 2 61 Number of line TVd Vertical invalid data period DH1 DH2 DH3 DH349 DH350 Number of V-data line Figure 7. Timing Diagram, 350-line mode. Horizontal invalid data period 0.3Vcc TVh Video Characteristics Colors are developed in combination with 6-bit signals (64 steps in grayscale) of each primary red, green, and blue color. This process can result in up to 262,144 (64x64x64) colors. The mapping of the eighteen video data inputs is shown in Table 12. Table 12. Video Data Color/Grayscale Map Data signal (0: Low level, 1: High level) Display colors R5 R4 R3 R2 R1 R0 Black Blue Red Magenta Green Cyan Yellow White Black dark bright Red Black dark bright Green Black dark bright Blue 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 11 11 11 00 00 00 1 1 1 0 0 0 00 00 00 00 00 00 0 0 0 0 0 0 00 00 00 0 0 0 0 0 0 00 00 00 00 00 00 0 0 0 0 0 0 0 0 0 00 00 00 00 00 00 11 11 11 00 00 00 1 1 1 0 0 0 0 0 0 00 00 00 11 11 11 1 1 1 1 1 1 0 0 0 01 10 11 00 00 00 00 00 00 00 00 00 0 0 0 0 0 0 1 1 1 0 0 0 01 10 11 00 00 00 00 00 00 00 00 00 0 0 0 0 0 0 1 1 1 01 10 11 0 0 1 1 0 0 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 G5 G4 G3 G2 G1 G0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 00 00 00 00 01 10 00 00 00 00 00 00 0 0 0 0 0 0 0 0 0 0 0 0 00 00 00 00 01 10 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 B5 B4 B3 B2 B1 B0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 00 00 00 00 00 00 0 1 0 1 0 1 0 1 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Basic colors 00 00 00 00 01 10 00 00 00 00 00 00 00 00 00 00 00 00 Red grayscale Green grayscale Blue grayscale LC640.480.33-AC Operations Manual (OM600-01) 15 Pixel Position The position of pixel data, relative to the color filter orientation and scan direction inputs is shown in Figure 8. Refer to the timing diagrams in Figures 5, 6, and 7 for horizontal pixel position (D1 through D640), and for vertical line position (DH1 through DH480). Figure 8. Pixel position of input data (480-line mode). UP D1,DH1 D1,DH2 D1,DH3 D2,DH1 D2,DH2 D3,DH1 D640,DH1 R G B D1,DH480 D640,DH480 R/L=H U/D=L The display image may be rotated 180 degrees using the R/L and U/D signals present on J3. Refer to Inverting the Display on page 21 for more information. Connectors The LC640.480.33-AC display has three connectors on the side of the display. J3 is the video connector, J2 is the dimming connector, and J1 is the backlight power connector. Figure 9. Connector Locations. J3 J2 J1 16 LC640.480.33-AC Operations Manual (OM600-01) Video Connector (J3) Video signals and LCD display power (VL) are applied via a polarized 34-pin dual-row 2 mm pitch header with gold plated (30µ") contact surfaces and ejector/latching ears. The connector is equivalent to a Samtec EHT-117-01-S-D-RA and the recommended mating cable is a Samtec TCSD-117. Consult your Samtec representative (1-800-SAMTEC9) for cable and connector options. Note that J3 is electrically and mechanically independent of the backlight assembly. Table 13. Video Connector (J3) Pinouts. Pin Signal Description Pin Signal Description 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 GND HSync GND R1 R3 R5 G0 G2 G4 GND B1 B3 B5 ENAB VL R/L 2 1 Ground Horiz. Sync Ground Red data Red data Red data (MSB) Green data (LSB) Green data Green data Ground Blue data Blue data Blue data (MSB) Enable 1 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 2 CK VSync R0 R2 R4 GND G1 G3 G5 B0 B2 B4 GND VL GND U/D 3 Dot Clock Vert. Sync Red data (LSB) Red data Red data Ground Green data Green data Green data (MSB) Blue data (LSB) Blue data Blue data Ground LCD Power Ground Vert. Scan3 Ground LCD Power Horiz. Scan Ground GND GND Ground (GND) is isolated from the display metal bezel. 1 Do not keep ENAB at a static high level. 2 Default is logic high or open connection. Reverse scan direction is logic low. 3 Default is logic low or open connection. Reverse scan direction is logic high. LC640.480.33-AC Operations Manual (OM600-01) 17 Dimming Connector (J2) A dimming voltage or potentiometer, plus optional backlight mode and disable logic inputs are applied via J2, which is a polarized 5-pin inline, 2.5 mm pitch header, tin plated with a friction lock. The connector is equivalent to the Molex 5268-NA `SPOX' series, part number 22-05-7055. The recommended mating connector is a Molex 5264-N series housing, part number 50-37-5053 and Molex 5263 series crimp pin, part number 08-70-1040. The recommended wire size is 22-28 AWG stranded. Refer to on page 19 for more information. Table 14. Dimming Connector (J2) Pinouts. Pin Symbol Function 1 2 3 4 5 RLUM HI VRLUM GND /ABCOFF /DISABL Pot high side voltage source output Analog dimming input Signal ground (return) Automatic brightness control mode disable input Backlight disable input Backlight Power Connector (J1) Backlight power (VH) is applied via J1, which is a polarized 3 pin, 3mm pitch header with gold plated (15µ") contact surfaces and a release latch. J1 is equivalent to a Molex 43650-0301 ("Micro-Fit 3.0" series). The recommended mating connector is a Molex part number 43645-0300 (housing) and Molex part number 43030-0008 (crimp pin). The recommended wire size is 20 AWG stranded. Table 15. Backlight Power Connector (J1) Pinouts. Pin Symbol Function 1 2 3 GND VH GND Power ground Backlight power Power ground Note: Power Ground (GND) is isolated from the display metal bezel. All signals and power on the backlight are also isolated from the J3-related AMLCD display circuits. 18 LC640.480.33-AC Operations Manual (OM600-01) Optical Features Viewing Angle Viewing angles are defined per Figure 10 below: Figure 10. Viewing Angles. Normal Line -V -H +V +H where: +H -H +V -V +Horizontal angle (+70) -Horizontal angle (-70) +Vertical angle -Vertical angle (+40) (-60) and R/L and U/D = default 6 o'clock direction Response Times The rise response time (from white to black) is 25 ms typical and the fall response time (from black to white) is 45 ms typical. This is shown in Figure 11. Figure 11. Response Times. white Photodetector output (Relative Value) black white 100% 90% r = Rise (wht to blk): 25 ms typ f = Fall (blk to wht): 45 ms typ 10% 0% r f time Dimming Initial backlight dimming is performed by decreasing tube current, allowing for substantially higher tube life in applications that do not require maximum luminance. The user can adjust the display for the optimum combination of luminance, life, and power consumption for the target application. LC640.480.33-AC Operations Manual (OM600-01) 19 Backlight Dimming Modes The backlight may be operated in one of four modes without the use of jumpers or switches. The mode is selected based on the state of the /ABCOFF input and on whether the dimming input is left open or connected to a voltage source. Table 16. Backlight Dimming Modes. Mode VRLUM /ABCOFF Comments Extended backlight life Manual dimming open Rpot or Vin open GND GND Automatic brightness control (ABC) Biased ABC open Rpot or Vin open Display operates at approximately half luminance. Minimum-to-maximum luminance as defined by pot or voltage at VRLUM (J2-2): 0 Vdc = min, +5 Vdc = max luminance Default mode. Minimum-to-maximum luminance as defined by ambient light sensor: 0 lx = min, 3000 lx = max luminance. Combination of dimming control and ambient light sensor sets display luminance. In this mode, VRLUM has twice the influence compared to the ambient light sensor, hence VRLUM can drive luminance to either extreme regardless of ambient light conditions. Ambient light influence max is capped at 3000 lux. Dimming Control Interfacing An analog dimming control is available on J2. Some common methods to use this input are shown in Figure 12. In this figure, the schematic shown is an approximation of the circuitry actually present in the LC640.480.33-AC and is meant to give an indication of the dimming interface DC characteristics. The VRLUM input expects a 0 to +5 Vdc voltage which may be supplied either directly or generated from a potentiometer. In Figure 12 below, A, B, and C are analog dimming methods. D, E, and F are methods to drive the two mode set inputs. Figure 12. Dimming Control Methods. 20 LC640.480.33-AC Operations Manual (OM600-01) Method A represents sourcing the dimming input from a voltage source such as a DAC or analog op amp. The device should be powered from +5 Vdc such that the device's output will not exceed the allowable input range of the dimming input. Method B creates the dimming voltage from a potentiometer. The recommended value for the pot is from 10K to 100K ohms. If J2 pin 1 is used as the pot high-side voltage reference as shown, then a lower pot value may restrict the maximum luminance attainable from the backlight as the drop due to the series limiting resistor becomes significant. Pot values greater than 100K ohm will result in response non-linearity due to loading from the dimming input. Some gain is provided in the dimming input path of the backlight to compensate for interface losses whereby the input dimming range provided by the source does not quite reach the 0 or +5 Vdc rails. Method C shows a simple strap which sets the display to maximum luminance. If the input is left unconnected, the input will be in the mid-level (half luminance) condition. Method D represents a CMOS or TTL logic gate, or a comparator to drive the backlight /DISABL input. Method E shows an open collector device such as a bipolar transistor or FET. Method F represents a switch or jumper. In all cases, the return is to J2 pin 3. By its nature, the automatic brightness control disable input (/ABCOFF) would be most likely be either permanently open or permanently strapped to ground. Inverting the Display If the display needs to be physically inverted due to mechanical packaging or optical (e.g. vertical viewing angle) considerations, the display image can be rotated 180 degrees. This is described in Table 17. Table 17. Inverting the Display. Signal: R/L U/D Image rightside up when: Default orientation Reverse orientation 1 0 0 1 J3 at left, ambient light sensor at top. J3 at right, ambient light sensor at bottom. LC640.480.33-AC Operations Manual (OM600-01) 21 Temperature Considerations Thermal Shutdown A thermal sensor referenced to the center of the backlight/inverter ECA prevents the inverter from starting at an ambient temperature of ­30 °C or below, and will shut off the backlight at an ambient temperature of approximately +90 °C and above. Luminance Variation Due to Ambient Temperature Although the inverter features regulated lamp current drive, luminance will vary across the temperature range due to the characteristics of the CCFL tubes. Lamp luminance decreases at low temperatures as the mercury condenses out of the gas and it decreases again at high temperatures as the tube phosphors become less efficient. The LC640.480.33-AC has been designed to provide peak luminance at normal room temperatures. Backlight power consumption decreases as temperatures climb as the working voltage of the CCFL tubes decreases. The graph in Figure 13 indicates typical performance across temperature. Figure 13. Luminance vs. Temperature. Luminance vs. Temperature 100 90 80 70 60 50 40 30 20 10 0 -20 -10 0 10 20 30 ta, C 40 50 60 70 80 30.0 25.0 20.0 15.0 10.0 5.0 0.0 Lum, % PH, W Backlight Power, W 22 LC640.480.33-AC Operations Manual (OM600-01) Luminance, % Warm-up Characteristic Some time after startup is required to allow the CCFL tubes to reach their normal operating temperature. The graph in Figure 14 shows the typical room temperature warmup curve for the LC640.480.33-AC when set to maximum luminance. As can be seen, luminance is at nearly 95% of the final value after five minutes of operation, and 99% of the final value at 10 minutes after startup. Figure 14. Warmup Curve. Warmup Curve 100 80 60 21.5 23.0 22.5 22.0 Center Luminance, % 40 21.0 20 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 20.5 20.0 Time, minutes Lum, % PH Display Dimensions The recommended clearance shown in Figure 15 illustrates the distance behind the display ECA which should be left for free low of air for the purposes of convection cooling. In Figure 15, dimensions are in millimeters. Tolerances unless specified are as follows: .x ±0.50 .xx ±0.25 Note: The dimensions in this drawing are approximate. Please contact Planar Applications Engineering to request the actual drawing prior to beginning your design. LC640.480.33-AC Operations Manual (OM600-01) Backlight Pwr, W 23 Figure 15. Display Dimensions. 24 LC640.480.33-AC Operations Manual (OM600-01) Description of Warranty This description is not the full warranty, and should not be construed as a substitute for the full warranty. A copy of the full warranty is available upon request. Planar warrants that the goods it sells will be free of defects in materials and workmanship, and that these goods will substantially conform to the specifications furnished by Planar, and to any drawings or specifications furnished to the Seller by the Buyer if approved by the Seller. This warranty is effective only if Planar receives notice of such defect or non-conformance during the period of warranty, which begins the day of delivery. The goods Planar sells are warranted for a period of one year unless otherwise agreed to by Planar and the Buyer. The Buyer must return the defective or non-conforming goods, upon request, to Planar not later than 30 days after Planar's receipt of notice of the alleged defect or non-compliance. Buyer shall prepay transportation charges, and Planar shall pay for return of the goods to the Buyer. No goods are to be returned to Planar without prior permission. The warranty does not apply in cases of improper or inadequate maintenance by the Buyer, unauthorized modification of the goods, operation of the goods outside their environmental specifications, neglect or abuse of the goods, or modification or integration with other goods not covered by a Planar warranty when such modification or integration increases the likelihood of damage of the goods. Ordering Information Product Part Number LC640.480.33-AC 996-0403-00 Design and specifications are subject to change without notice. Planar Systems continues to provide optional, and in many cases custom, features to address the specific customer requirements. Consult Planar Sales for pricing, lead time and minimum quantity requirements. Support and Service Planar is a U.S. company based in Beaverton, Oregon and Espoo, Finland, with a world-wide sales distribution network. Full application engineering support and service are available to make the integration of Planar displays as simple and quick as possible for our customers. RMA Procedure: For a Returned Material Authorization number, please contact Planar Systems, Inc. with the model number(s) and serial number(s). When returning goods for repair, please include a brief description of the problem, and mark the outside of the shipping container with the RMA number. North & South America OEM Sales Europe & Asia-Pacific OEM Sales Planar Systems, Inc. 1400 NW Compton Drive Beaverton, OR 97006-1992 Tel. +1 (503) 690 1100 Fax +1 (503) 690 1493 sales@planar.com app_eng@planar.com Visit the Planar web site: http://www.planar.com OM600-01 Planar Systems, Inc. Olarinluoma 9, P.O. Box 46 FIN-02201 Espoo, Finland Tel. +358 9 42 0010 Fax +358 9 420 0200 intlsales@planar.com tech_support@planar.com