AYRE DX-5DSD - Manual (Page 124)

Pixel As digital formats, DVD and Blu-ray reproduce
video image as a grid of very fine colored dots. The
smallest element of this video image is called a
pixel, which is a shortened form of “picture
element”.
Plasma A plasma video display uses ionized gases to excite
colored phosphors, similar to the way that a
fluorescent light bulb operates. This is one example
of a Fixed Pixel display.
Progressive A progressive video system draws all of the picture
lines on the video display in one pass. Commonly
used for computer displays, progressive video results
in a more stable, flicker-free picture than does
Interlaced video.
Region Coding In an attempt to control the distribution of video
discs, the DVD Forum has designated eight
different regions and the Blu-ray Disc Association
has designated three different regions throughout
the world. Discs from any given region are normally
only playable on players purchased from that same
region.
Resolution Every video display device or video format has a
maximum number of Pixels that can be displayed.
This resolution is specified as the number of
horizontal pixels by the number of vertical pixels.
The resolution of a DVD is 720x480 for NTSC discs
and 720x576 for PAL discs. Scaling must be used to
convert this resolution to the resolution of a Fixed
Pixel display. The horizontal resolution of a CRT
(i.e., analog) is somewhat ambiguous, as there are no
discrete pixels used in this technology.
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