Televisions
Direct
view Televisions come in Digital and Analog formats and range in screen size from
13 inches to 40 inches.
Rear projection TVs have a bright and clear image. They range in screen
size from 40 inches to 70 inches. They are produced in both the 4:3
format (Regular television picture) an 16:9 format (Letter box picture).
The advantage to the letterbox format is that you view the scenes as they
were shot, in widescreen. The disadvantages, to some people, are the
black margins found on the top and bottom of the screen. Most of these
Rear Projection Televisions are now being produced HDTV ready which
gives you a picture of almost photograph quality and fills the entire
16:9 formatted screen.
Plasma Televisions are the New Wave of design. The images are extremely clear.
Plasma television technology is still new and evolving. Each year sees new
plasma screens with improvements over previous models and cuts in prices.
These televisions are thin and can be wall mounted. They are stylish and
unobtrusive.
Home cinema users need an additional AV amp-sized box that contains all the
electronics needed
to work the plasma screen.
The concept for plasma display panels was first conceived in July 1964 at the
University of Illinois.
The first displays were nothing more than points of light created in laboratory
experiments.
Plasma display devices have higher resolution than conventional
TV sets, and are capable
of displaying full HDTV and DTV signals as well as XGA, SVGA and VGA signals
from a computer.
Conventional CRTs use an electron beam to scan the picture tube from top to
bottom at regular
intervals, lighting the phosphors to create the image. In
the case of standard (NTSC) TV,
visible scan lines can be seen.
Most plasma displays include built-in line doubling to further improve image
quality
when viewing standard analog video sources such as TV broadcasts and VCR tapes,
this makes
for a crisper, cleaner picture. You can purchase a plasma TV up to 60" but
hold on to your wallet
they are still paying for the research and development on these babies.