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HDTV Article Series
Buying
a High Definition Television (HDTV)
Are
Rear Projection TV's
the Best Choice for HDTV?
Now that high definition television, or HDTV,
is becoming so popular, there are more choices when shopping
for a new television. The choices for HDTV are staggering.
Consumers can purchase plasma, LCD (liquid crystal display),
DLP (digital light processing) or LCOS (liquid crystal on silicon),
which are all types of monitors. There are also projection
displays to consider. Here are three reasons why rear projection
is the best choice for HDTV.
HDTV
sets come in many sizes and styles. High definition sets
come in LCD, DLP, and LCOS. Many viewers prefer the wall display
monitor that either plasma or LCD offers. But, these are usually
most expensive of the high definition sets, especially the
ones that are sized between 40 - 70 inches. Lower on the cost
spectrum, but equally first-rate, are the LCD displays that
are sized at 42 inches and under.
Screen
resolution from a high definition TV broadcasts is
roughly five times as sharp as conventional broadcasts. High
definition has double the lines of resolution compared to a
traditional analog TV set. While a traditional analog set can
only display 525 lines of resolution, HDTV technology takes
this one step farther. HDTV broadcasts can display 1080 horizontal
lines of resolution. This makes a huge difference in the picture
clarity and quality. Often with big screen analog broadcasts,
the picture is severely degraded because of the resolution
lines.
Rear
projection HDTV sets are probably the most popular. Rear
projection high definitions are popular for several reasons.
One reason why consumers buy the rear projection types is because
the LCD display is not based on the traditional projection
tube. Unlike a CRT projection television, an LCD uses a light
source that passes through transparent LCD. The LCD micro-displays
used have three small LCD panels. Each panel is less than one
inch diagonal and has the capability produces high definition
wide screen images up to 70 inches.
The LCD panels are made up of a grid of transistors that create
a pixel structure. When the transistors are charged, tiny rotating
crystals suspend n a liquid inside the panel. The crystals
are like tiny shutters that control the amount of light that
passes through each panel. The light is reflected on a mirror
and through a projection screen, which creates the full color
high definition picture.
Because
the LCD chip is very small, it allows rear projection sets
to be small and compact. The LCD chip is extremely small
compared to that of the CRT rear-based televisions. The LCD
variety is very thin and lighter. The set cannot be hung on
the wall as a LCD flat screen or plasma, but it often saves
floor space and tend to be less expensive that the flat screen
or plasma.
Another
reason why rear projection HDTV sets are popular choices
is that the screens can be purchased much larger than the LCD
and plasma flat screens. With LCD screens, the size is limited,
but a rear projection screen can be larger without distortion
and still produces a clear picture. There are great benefits
of using a rear projection high definition television. They
have over twice the sharpness and clarity of regular analog
TV broadcasts. The color resolution is far superior. For consumers
who have already made the switch to HDTV, they feel this is
the biggest advantage of high definition. The lack of imperfections
in the television screen often seen on traditional television
is another reason why many prefer high definition rear projection
sets. With HDTV, problems such as snow caused from a weak signal,
double images from ghosting or multi-path and picture sparkles
from impulse noise are a thing of the past. These problems
often seen on a conventional television broadcast just do not
occur on HDTV.
Rear projection sets are also worth looking into because the
technology that rear projections uses offers a high contrast
and picture brightness. Thus type of set also uses less power
than an LCD or a plasma flat screen.
Another type of rear projection television, the DLP
is a good choice too because the technology is the same that is used
in some movie theaters. The high resolution that the DLP offers
makes it a popular choice for those wishing to set up a home
movie theater. The DLP gives viewers a true viewing experience.
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SolveYourProblem.com : 2007
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