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Glossary
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O
OSD (On Screen Display)
The feature that allows an end user to adjust screen performance and parameters of monitors directly
through an on-screen instruction window. See CustoMax in CrystalClear section.
Overscan
The practice in which areas without useful video information are scanned outside the visible screen area in
order to make maximum use of the screen for display of active video information. This practice is
occasionally necessary because some video cards generate a video pattern that is smaller than the visible
screen area, resulting in an image that is smaller (and less legible) than it needs to be.
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P
Parallelogram Distortion
See Geometric distortion.
Phosphor
Generic name for the class of substances that exhibit luminescence. To produce a picture on screen,
phosphors are deposited on the inner surface of the picture-tube screen and excited into luminescence by
the electron beam. Typical examples of phosphors are P22 medium short-persistence phosphor and EBU
high-color-saturation phosphor.
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