Related Manuals for Planar LC640.480.21-065
Summary of Contents for Planar LC640.480.21-065
- Page 1 Operations Manual LC640.480.21-065 6.5" C TFT AMLCD ERFORMANCE OLOR ® The Definition of Quality...
- Page 2 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.
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Page 3: Table Of Contents
Contents LC640.480.21-065 Display ......................1 Features and Benefits........................1 Installation and Handling......................... 2 Mounting the Display ........................2 Mounting Display Face Down....................2 Mounting Display Face Up ..................... 2 Thermal Control ........................2 Isolation and Air Gap......................2 Ambient Light Sensor Clearance..................... 3 Cable Length.......................... - Page 4 Temperature Considerations...................... 24 Luminance Variation Due to Ambient Temperature ............. 24 Temperature Sensors ......................25 Heater Operation and Over Heat Status Lines ..............25 Backlight Heater........................25 Cell Heater ..........................28 High Temperature Control ....................30 Defects ............................31 Emissive Defects ........................31 Cosmetic Defects ........................
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Page 5: Lc640.480.21-065 Display
LC640.480.21-065 Display The LC640.480.21-065 is a 6.5-inch diagonal VGA active matrix liquid crystal display (AMLCD) designed to meet the demanding SAE specifications for the transportation industry. This display is ideal for a variety of industrial applications, such as point-of- sale and outdoor kiosks. With a typical brightness of 1000 nits, this sunlight-readable display offers high contrast in bright environments along with a wide dimming range for nighttime operation. -
Page 6: Installation And Handling
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. -
Page 7: Ambient Light Sensor Clearance
Ambient Light Sensor Clearance Two backlight dimming modes utilize automatic brightness control. 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. -
Page 8: Specifications
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 with a full white screen display and the backlight at maximum luminance, 60Hz LCD frame rate, unless otherwise specified. -
Page 9: Mechanical Characteristics
Mechanical Characteristics Refer to mechanical outline drawing in Figure 23 on page 33. All size measurements shown in Table 3 are in millimeters (inches). Table 4. Mechanical Characteristics. Display External Dimensions width 178.8 (7.04 ) nominal height 126.8 (4.99) nominal depth 38.3 (1.51) nominal Weight (normal) -
Page 10: Optical Characteristics
Optical Characteristics Table 5. Optical Characteristics. Luminance (at screen center) Standard (typical) 3 cd/m minimum, 1000 cd/m maximum (initial) Controlled (typical) 3 cd/m minimum, 700 cd/m maximum Contrast Ratio Dark room ambient 150: 1 typical, 80:1 minimum 500 Lux ambient 92:1 typical 5K Lux ambient 12:1 typical... -
Page 11: Viewing Angles
Viewing Angles Figure 1. Viewing Angles. Normal Line where: +Horizontal angle (+50) -Horizontal angle (-50) +Vertical angle (+35) -Vertical angle (-45) and R/L and U/D = default 6 o’clock direction Response Times As shown in Figure 2, the rise response time (from white to black) is 40 ms typical and the fall response time (from black to white) is 50 ms typical. -
Page 12: Interfacing And Operation
Interfacing and Operation Control Basics Power Requirements The LC640.480.21-065 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. -
Page 13: Power Sequencing (Lcd)
Power Sequencing (LCD) When performing power sequencing: Ensure the supply voltage for input signals is the same as for VCC. Apply VCC within the LCD operation period. When the backlight turns on before LCD operation or the LCD operation turns off before the backlight turns off, the display may momentarily become white. -
Page 14: Signal Timing
Signal Timing Video signal timing diagrams are shown in Figures 2 through 4 on the following pages. Table 8 refers to these diagrams. Table 8. Video Signal Timing. Parameter Symbol Min. Typ. Max. Unit Frequency 1/tc 21.0 25.175 29.0 Duty t ch/ t c –... -
Page 15: Figure 4. Timing Diagram
Figure 4. Timing Diagram. 1.5 V tcrf tcrf DATA INVALID INVALID (R0 to R5) (G0 to G5) 1.5 V (B0 to B5) tdrf tdrf 1.5 V terf terf 1.5 V thch thcs Hsync 1.5 V thrf 1.5 V 1.5 V tvrf LC640.480.21-065 Operations Manual (OM610-00) -
Page 16: Figure 5. Timing Diagram
Figure 5. Timing Diagram. LC640.480.21-065 Operations Manual (OM610-00) -
Page 17: Figure 6. Timing Diagram
Figure 6. Timing Diagram. Hsync LC640.480.21-065 Operations Manual (OM610-00) -
Page 18: Video Characteristics
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 9. Table 9. -
Page 19: Pixel Position
Pixel Position The position of pixel data, relative to the color filter orientation and scan direction inputs is shown in Figure 7 below. Refer to Table 10 to see the relations between the scan direction and the viewing direction. Table 10. Display Positions. Normal scan: DPS = “L”... -
Page 20: Warmup Characteristic
Warmup Characteristic Some time after startup is required to allow the CCFL tubes to reach their normal operating temperature. The graph in Figure 8 shows the typical room temperature warmup curve for the LC640.480.21-065 when set to maximum luminance. Figure 8. Warmup Curve. Luminance VS Time (warm-up curves) 100.00%... -
Page 21: Connectors
Connectors The LC640.480.21-065 display has four connectors on the back near one side of the display. J1 is the video input and backlight control connector, J2 is the backlight inverter and heater connector, and J3 and J8 are the connectors for tethering the ambient light sensor. - Page 22 Table 11. Video Input and Backlight Connector (J1) Pinouts. Signal Description Signal Description Ground Video clock HSync Horiz. sync VSync Vert. sync Ground Red data (LSB) Red data Red data Red data Red data Red data (MSB) Ground Green data (LSB) Green data Green data Green data...
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Page 23: Backlight Inverter And Heater Connector (J2)
Backlight Inverter and Heater Connector (J2) This connector supplies 12 Vdc nominal to the inverter to operate the backlight inverter and backlight heater. The connector is a Molex Micro-Fit 3.0 Wire-to-Board Header (# 43045-0600). The mating connector is a Molex Micro-Fit 3.0 Wire-to-Wire Receptacle (#43025-0600, crimp # 43030-0007). -
Page 24: Luminance Features
Luminance Features Backlight Dimming Control for backlight dimming is performed by several methods depending on how the switches on switch block SW1 (see Figure 9) are set as shown in Table 14 below. These selections are available for both standard and controlled luminance mode. Table 14. -
Page 25: Figure 11. Luminance Vs. Dimming Voltage: Manual Dimming
Figure 11. Luminance vs. Dimming Voltage: Manual Dimming. LUMINANCE VS DIMMING VOLTAGE 100.00 80.00 60.00 40.00 20.00 0.00 DIMMING VOLTAGE LC640.480.21-065 Operations Manual (OM610-00) -
Page 26: Automatic Dimming (Ambient Light Sensor)
Automatic Dimming (Ambient Light Sensor) Lamp luminance varies depending on ambient light levels. An off-board light sensor is used to determine the level. See Figure 12 below. Table 16. Automatic Dimming (Ambient Light Sensor) Specifications. Description Specification Sensor type Photodiode, visible light filtered Sensor sensitivity 10 nA/lux Dynamic range... -
Page 27: Automatic Dimming (Manual Offset)
Automatic Dimming (Manual Offset) Lamp luminance varies depending on ambient light levels. An off-board light sensor is used to determine the level. The user can adjust the luminance offset by varying the input from 0 to 5 Vdc on pin 33 (DIM) of the video input connector (J1). See Figure 13 below. Table 17. -
Page 28: Backlight Enable
Backlight Enable The INV input on pin 35 of the backlight control connector (J1) directly shuts down the inverter output. Table 18. Backlight Enable Specifications. Description Specification Input characteristic CMOS logic-compatible; open circuit defaults to high state State definition INV low state turns backlight off Temperature Considerations The LC640.480.21-065 display is designed to operate over a wide temperature range. -
Page 29: Temperature Sensors
Temperature Sensors The temperature sensors are located at opposite corners of the backlight module, just outside the active area of the display. The output of the sensors are sent to the microprocessor on the inverter module through a board-to-board connector. Heater Operation and Over Heat Status Lines There are two situations when the inverter controller will override the external control of the backlight:... -
Page 30: Figure 15. Sensor Temperature Vs. Lamp Heater (Inverter Startup Time Delay)
Table 20. Backlight Heater Parameters. Parameter Value Type Resistive wire (nichrome: NiCrA – 80% Ni 20% Cr, 39 AWG, 53 ohms/foot) Length/Lamp ~ 200 mm (7.87 inches)/lamp, 8 revolutions around each lamp, resistance/wire = 36 ohms, total heater resistance = 6 ohms Active temperature sensor Monitor temperature sensor with the highest reading Control... -
Page 31: Figure 16. Sensor Temperature Vs. Lamp Heater Duty Cycle
Figure 16. Sensor Temperature vs. Lamp Heater Duty Cycle SENSOR TEMPERATURE VS LAMP HEATER DUTY CYCLE SENSOR TEMPERATURE (C) Figure 17. Display Warmup Performance. Cold Start Up: Luminance VS Time (12 VDC, w/o cell heater, full luminance, display enclosed) 100.00% 90.00% 80.00% 70.00%... -
Page 32: Cell Heater
Cell Heater (Optional version 996-0406-01) The cell heater consists of a glass panel with an ITO coating on one side. There are bus bars along each side of the panel. The heater decreases the response time of the AMLCD cell at low temperatures by heating the liquid crystal material in the cell. Figure 18 shows the response time performance at different heater voltages. -
Page 33: Figure 19. Cell Heater Maximum Power Time
Figure 19. Cell Heater Maximum Power Time. SENSOR TEMPERATURE VS MAXIMUM POWER TIME (ITO CELL HEATER) SENSOR TEMPERATURE (C) Figure 20. Cell Heater Duty Cycle. SENSOR TEMPERATURE VS DUTY CYCLE (ITO CELL HEATER) SENSOR TEMPERATURE (C) LC640.480.21-065 Operations Manual (OM610-00) -
Page 34: High Temperature Control
High Temperature Control At high temperatures, thermal control is performed by decreasing the maximum duty cycle of the backlight inverter. See Table 22 and Figure 21 below. Table 22. High Temperature Control Parameters. Parameter Value Units Active temperature sensor Monitor temperature sensor with the highest reading None Control Maximum duty cycle is stepped as shown in Figure 21... -
Page 35: Defects
Defects Emissive Defects Table 23. Emissive Defects. Item Specification Not allowed Line Defect Luminous Dots Color Red, Green, Blue Distance between same color dot defects Quantity Brightness: F + H – R + G + B Brightness: F 6.5 mm 6 pairs, each color Adjacent two dots 6 pairs, each color... -
Page 36: Cosmetic Defects
Cosmetic Defects Table 24. Cosmetic Defects. Item Measurement Criteria Quantity Polarizer scratch Remarkable scratches 0 points Polarizer bubbles, wrinkles, Average diameter 0.5 mm 3 points or dent Other objects or dust – All allowed Width 0.05 mm between polarizer and glass L <... -
Page 37: Display Dimensions
Figure 23. Display Dimensions. Unless specified, tolerances are: .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. LC640.480.21-065 Operations Manual (OM610-00) - Page 39 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.
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