Projection Tv
Viewers interested in larger screens should consider purchasing a
projection television. Because projection TVs don’t employ
traditional cathode ray tubes, there are no limitations as far as
screen size is concerned. The reason projection TV’s are
called such is because by using cathode ray tubes, they project the
image onto the screen. The tubes divide the video signal into colors
(red, blue, and green). The three tubes project onto a mirror in the
set. The mirror then sends the color image onto the screen.
Front Projection Tv Types
A front-projection set is somewhat like a film projector. The operating
system of the set is not stored in a traditional TV case ,instead, the
TVs cathode ray tubes are kept in a single unit. The TV image is
projected onto a fabric screen, which means that there is little to no
limitation on screen size(200-inch screens are available). Projection
TVs can be tricky to set up however and, work best in a darkened room.
Proper distancing from the projector to the screen is
important, and the cathode ray tubes must be set up properly. Viewers
who are considering the purchase of a front-projection set should keep
in mind that these TVs are designed to operate in a designated home
theater , rather than a den or living room. A Front-projection set will
run between $6,000-$7,000.
Rear Projection Tv
The least expensive projection type TV is a rear-projection LCD TV.
Some projection TVs have three cathode-ray picture tubes (CRTs), which
are essentially smaller versions of the tubes used in conventional
sets. Other rear projection TV sets use LCD, digital light processing
(DLP), or liquid crystal on silicon (LCoS) technology in place of CRTs.
These high tech rear projection TV sets are thinner, lighter, and as a
result more, expensive than comparable CRT-based sets – but
they also produce a higher-quality picture. Major brands of rear
projection LCD TV sets include Hitachi, Mitsubishi, Panasonic, Philips,
RCA, Samsung, Sony, and Toshiba. Most models are HD compatible.
Choosing a Projection Tv
Choosing the projection TV for you and your
viewing needs depends on a number of things:
- Consider the space you
have available before you worry
about the
screen size itself. Most rear projection LCD TVs have screens measuring
from 42 to well over 60 inches. first determine how much floor space
you can spare, and plan to view the TV from around 7 to 10 feet away
for optimal picture quality.
- Consider depth and price. Once you know how much room you
have, decide
whether size or price is more important. CRT-based sets are
floor-standing models with deep cabinets that are mounted on casters.
Some take up as much space as an armchair or loveseat. Many rear
projection LCD TV sets are tabletop units, or you can buy a separate
stand for a few hundred dollars.
- Consider the type of picture quality. The best rear
projection LCD TV
sets deliver excellent picture quality with HD content and impressive
quality for DVD's and regular TV programming. Rear projection LCD TV
screens provide much better picture quality than CRT models.
- Check the viewing angle. Some rear projection LCD TV sets
display
better off-center images than older LCD sets did, which is important if
your TV will be watched by several people at the same time. Before
buying a particular model, see how the picture looks from different
angles and positions.
If you decide on purchasing a projection TV set, you may
want to consider extended warranty options. While extended warranties
aren’t worth the hassle for most products, they very well may
be for high-priced TVs. Also, you may want to check into the cost of a
service plan and see if in-home service is covered. Some service plans
offer replacements provided your rear projection LCD TV can't be
repaired.
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