Planar LC640.480.33-AC manuale d’uso

Operations Manual LC640.480.33-AC H IGH B RIGHTNESS 10.4" C OLOR TFT AMLCD T he D e f i n i t i on o f Q ua li t y ®[...]

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 [...]

Contents LC640.480.33-AC Display .............................................................................................................. 3 Features and Benefits ................................................................................................................... 3 Installation and Handling ......................................[...]

LC640.480.33-AC Operations Manual (OM600-01) 2 Figures Figure 1. Mounting Options. ........................................................................................................ 4 Figure 2. Power Sequencing. ....................................................................................................... 9 Figure 3. V L Supply Dropo[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 3 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, “single- BEF” viewing[...]

LC640.480.33-AC Operations Manual (OM600-01) 4 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 [...]

LC640.48 0.33-AC Operations Manual (OM600-01) 5 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[...]

LC640.480.33-AC Operations Manual (OM600-01) 6 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 un[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 7 Optical Characteristics Table 4 . Optical Characteristics. Luminance Typical Minimum 1000 NITs at screen center, initial 900 NITs at screen center, initial Contrast Ratio Dark room ambient 500 Lux ambient 3K Lux ambient 100K Lux ambient 200: 1 typical, 150:1 minimum 150:1 typical 50:1 typical 3:1 typi[...]

LC640.480.33-AC Operations Manual (OM600-01) 8 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[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 9 Figure 2 . Power Sequencing. data t3 t2 t1 Vcc 4.5V 4.5V 2.7V where: t 1 ≤ 10ms 0< t 2 ≤ 10ms 0< t 3 ≤ 1s Applying video signals before V L is applied may cause a latchup condition. Allowing V L to remain “on” for a long period of time after video signals are removed—which stops the [...]

LC640.480.33-AC Operations Manual (OM600-01) 10 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 V I max -0.3 V L + 0.3 Vdc Low-level Input Voltage V IL 0 0.3V [...]

LC640.48 0.33-AC Operations Manual (OM600-01) 11 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 freq 1/Tc all – 25.18 28.33 MHz hi time Tch all 5 – – ns lo time Tcl all 10 – – ns Data se[...]

LC640.480.33-AC Operations Manual (OM600-01) 12 Figure 5 . Timing Diagram, 480-line mode. Tcl Tds Tdh 0.3Vcc Number of V-data line Vertical invalid data period DH479 DH480 DH3 DH2 DH1 TV TVd 0.3Vcc Number of line 0.7Vcc 34 Tcp TVs TVp Tcs TVh 0.3Vcc 0.7Vcc Vertical invalid data period THc THd Horizontal invalid data period 0.7Vcc Horizontal invalid[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 13 Figure 6 . Timing Diagram, 400-line mode. Tcl Tds Tdh 0.7Vcc Number of V-data line Vertical invalid data period DH399 DH400 DH3 DH2 DH1 TV TVd 0.3Vcc Number of line 0.3Vcc 34 Tcp TVs TVp Tcs TVh 0.7Vcc 0.7Vcc Vertical invalid data period THc THd Horizontal invalid data period 0.7Vcc Horizontal invali[...]

LC640.480.33-AC Operations Manual (OM600-01) 14 Figure 7 . Timing Diagram, 350-line mode. Tcl Tds Tdh 0.3Vcc Number of V-data line Vertical invalid data period DH349 DH350 DH3 DH2 DH1 TV TVd 0.3Vcc Number of line 0.7Vcc 61 Tcp TVs TVp Tcs TVh 0.3Vcc 0.7Vcc Vertical invalid data period THc THd Horizontal invalid data period 0.7Vcc Horizontal invalid[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 15 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/[...]

LC640.480.33-AC Operations Manual (OM600-01) 16 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[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 17 Video Connector (J3) Video signals and LCD display power (V L ) are applied via a polarized 34-pin dual-row 2 mm pitch header with gold plated (30 µ ") 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 Sam[...]

LC640.480.33-AC Operations Manual (OM600-01) 18 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 [...]

LC640.48 0.33-AC Operations Manual (OM600-01) 19 Optical Features Viewing Angle Viewing angles are defined per Figure 10 below: Figure 10 . Viewing Angles. θ -V θ -H θ +V θ +H Normal Line 6 o’clock direction where: θ +H +Horizontal angle (+70) θ -H -Horizontal angle (-70) θ +V +Vertical angle ( +40) θ -V -Vertical angle (-60) and R/L and [...]

LC640.480.33-AC Operations Manual (OM600-01) 20 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[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 21 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 [...]

LC640.480.33-AC Operations Manual (OM600-01) 22 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. Lumin[...]

LC640.48 0.33-AC Operations Manual (OM600-01) 23 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 t[...]

LC640.480.33-AC Operations Manual (OM600-01) 24 Figure 15 . Display Dimensions.[...]

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