Philips 107T21 User Manual - Page 29

Moiré effect, MultiSync monitor, OSD On Screen Display, Overscan, See Interlaced/non-interlaced.

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Glossary M Moiré effect A fringe pattern arising from the interference between two superimposed line patterns. In a monitor it comes from the interference between the shadow mask pattern and the video information (video moiré), and between the shadow mask pattern and the horizontal line pattern (scan moiré). It shows itself as wavy patterns on the screen and becomes more noticeable as monitor resolution increases. Since the video signal varies continuously, little can be done about video moiré. Scan moiré depends on the horizontal scanning frequency and can be alleviated by appropriate choice of frequency. Autoscan (MultiSync) monitors, which operate over a range of scanning frequencies, may sometimes exhibit moiré in certain video modes. MPR See Electromagnetic radiation standards. MultiSync monitor See Autoscan monitor. RETURN TO TOP OF THE PAGE N Non-interlaced See Interlaced/non-interlaced. RETURN TO TOP OF THE PAGE 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 file:///C|/rita wu/gs3LF/ENGLISH/107T/glossary/glossary.htm (9 of 18) [10/12/2000 1:50:24 AM]

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M
Moiré effect
A fringe pattern arising from the interference between two superimposed line patterns.
In a monitor it comes from the interference between the shadow mask pattern and the video information
(video moiré), and between the shadow mask pattern and the horizontal line pattern (scan moiré). It shows
itself as wavy patterns on the screen and becomes more noticeable as monitor resolution increases. Since
the video signal varies continuously, little can be done about video moiré. Scan moiré depends on the
horizontal scanning frequency and can be alleviated by appropriate choice of frequency. Autoscan
(MultiSync) monitors, which operate over a range of scanning frequencies, may sometimes exhibit moiré in
certain video modes.
MPR
See Electromagnetic radiation standards.
MultiSync monitor
See Autoscan monitor.
RETURN TO TOP OF THE PAGE
N
Non-interlaced
See Interlaced/non-interlaced.
RETURN TO TOP OF THE PAGE
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
Glossary
file:///C|/rita wu/gs3LF/ENGLISH/107T/glossary/glossary.htm (9 of 18) [10/12/2000 1:50:24 AM]