Buyer's
GuideChoosing a correct Television is a difficult task. Before selecting the TV set, you just understand the different types of Television sets.
CRT Television
As you probably know, the CRT creates a TV image by scanning the back of
a phosphor-coated screen with three separate electron beams. When an
electron strikes the phosphor, it momentarily glows with a color
determined by its chemical composition. The CRT TVs are excessive size,
weight, heat, and cost for larger displays. HDTV (High Definition TV) If you want high resolution picture quality HDTV is
the best solution. Whichever technology its display uses (LCD, plasma, or CRT), a TV
set or monitor intended for HDTV display will have to carry the
“HD ready” logo if one wants to be sure that it fulfills the minimum required conditions fixed by EICTA for compatibility
with HDTV broadcasts or records. A Plasma Display Panel (PDP) creates an image by illuminating tiny cells
of gas When a
high voltage is impressed across the
cell, the gas inside becomes ionized
creating lots of free electrons (a
plasma). These electrons then strike a
phosphor coating in the cell causing it
to emit light, much like a CRT. Plasma pros include excellent
color rendition, deep blacks, and wide
viewing angle. They are also very thin
and thus easy to hang on a wall. The
cons are moderate weight and heat
generation, and high cost (although
they’re dropping). It is also very difficult
(i.e., expensive) to create cells small
enough for a 1080p display. Plasmas
are also prone to image burn (although
again, they’re getting much better).