Planar EL640.480-AM user manual Reliability, Safety and EMI Performance, Grayscale

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Grayscale

Using the display’s higher frame rate frequency, combined with flat panel controllers, it is possible to generate a wider range of usable grayscales through frame rate control and dithering.

Frame Rate Control generates true grayscales by turning pixels on and off over several frames of time. The user’s eye sees each individual pixel as gray. The potential problems with this method are brightness-profile and shadowing, especially when used to shade larger areas.

Dithering generates grayscales by patterning the area to be shaded. The tested C&T controllers use a pattern of 4 (2x2) pixels to generate the dithered grayscales. When the area is viewed from a distance, it appears to the user’s eye as gray. When viewed up close, the different brightness of the individual pixels can be observed.

Many of the grayscales that can be generated may flicker or swim. Through careful selection however, several grayscale patterns are available for most applications, particularly when the display is driven at its maximum frame rate frequency. Planar Application Note 119 is available for more information on generating grayscale images.

Reliability

The MTBF (mean time between failures) is a minimum of 50,000 hours at 25°C ambient, except for performance characteristics with an otherwise specified life expectancy.

Safety and EMI Performance

The AM displays will not inhibit the end product from obtaining these certifications:

Safety:

UL544, IEC950

EMI:

FCC Part 15/J, Class B

 

EN55022 Level B

14 EL640.480-AM Operations Manual (020-0351-00C)

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Contents USER’S Manual Page Contents Figures Features AM Series 10.4 VGA Flat Panel DisplaysOptions Installation and HandlingMounting EL Displays Cable Length CleaningAvoiding Burn-In Specifications PowerDC Input Voltage Requirements Video Input RequirementsAM1 Data and Power Connector ConnectorsInput Voltage Selection AM8 Data and Power Connector J1 Connector PinoutsJ1 Side View J1 Top ViewDimming Connector J2 Locking Power and Data ConnectorInterfacing Video Input Signals Video Input TimingSetup and Hold Timing Diagram Setup and Hold Timing Symbol Name Min Max UnitSelf-Test Mode Data FormatOptical Performance Optical CharacteristicsDimming Reliability Safety and EMI PerformanceGrayscale Mechanical Characteristics Environmental CharacteristicsDimensions and Weight EnvironmentalAM Series Dimensions Component EnvelopeDescription of Warranty Support and Service Ordering InformationPlanar Systems, Inc