Samsung D61B Training Manual page 94

Glossary
Phosphor degradation :
Gradual decline in fluorescence efficiency according to operating expectancy.
Phosphor layer :
Thin layer made up of phosphor. FluorescencPle substance must be thick enough to optimize transferring
the ultraviolet rays from plasma discharge to visible light
Pixel, picture element :
The smallest unit that can display the entire range of luminance and chromaticity. Generally, pixel consists
of sub pixels (or dots).
Pixel arrangement :
Expression of sub pixels within a pixel.
Pixel count :
The number of pixels that make up a display. It is described as the number of column pixels against the
number of row pixels.
Pixel pitch :
The distance between the centers of the two closest pixels. Move as far as the pitch and reach the identical
location.
Plasma display :
Electrically driven display device for causing electric discharge in gas within device. Electric energy gener-
ates light with atomic light release or from proper colored fluorescence substance.
Positive column discharge :
The plasma area for long glow discharge. This area is a low electric field but relatively electric conductive
plasma area.
Pre discharge :
Cell's state where pre discharge is taking place. In this case, cell's state becomes electric conductive due to
formation of discharge generated by ionization process of gas.
Priming :
The stage where ions are generated for forming discharge. Generally, this is required for injection.
Priming pulse :
Electric waveform to define the proper conditions for the next cell discharge.[symbol : Pp]
Priming voltage :
Voltage of priming pulse.[symbol : Vp]
Protecting layer :
The layers applied to the device function constituents (for example, fluorescence, electrode and glass lay-
ers).
Quantum efficiency :
Substrates farther from the viewers. These can be opaque.
Rear substrate :
Efficiency measurement that is directly expressed with the number of output particles against the number
of input particles. In case of plasma panel, the number of photons in visible area, generated from photons
in ultraviolet area
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