A Big Projector Smack Dab In Your Living Room|
by Erika Mathie
Does it come as a surprise to you that we no longer buy
a television set? Today we buy a monitor and a high
definition screen. The monitor takes in the signal
from an antenna, a satellite, cable hook-up or your VCR
or DVD player and projects the image onto the screen.
The rear projector is coupled with a television monitor that
interprets the signals that come from satellite, cable or
your DVD or VCR player. The rear projection unit puts the
image on the screen from the back of the television set.
This advanced technology uses a combination of lights and
mirrors to control the image. The mirrors switch on and off
at incredible speeds as the projection unit translates the
signals into a moving picture. The higher quality rear
projection units give a clearer picture.
The controls in the new monitors allow you to change the
viewing mode of the screen. Full screen is the normal way
to watch television shows while wide screen gives movies
a home theatre quality.
The projected image in a big screen television is usually
LCD or plasma. LCD refers to liquid crystal display.
Plasma is substance that makes the screen look most
realistic. The life span of these screens differs greatly.
Even though most LCD may last up to 20 years, the crystals
start to break down after 10 years. Plasma in contrast may
last up to 14 years and this technology has a half-life of
around 7 years before quality starts to deteriorate. The
flatter screens and streamline models have the latest
technology and best reception.
Signals inside a television projector are sent in lines and
dots, or pixels. Some of the most highly advanced signal
technologies for TV projectors are DLT (Digital Light
Processing), PureDrive, DNX by Pixelworks, DCDi by Faroudja,
and ACEII. These technologies allow HD (high definition)
and plasma to have the best resolution.
The language in advertising HD and plasma televisions can
really look intimidating, especially when you read about
resolution. What do those numbers really mean? Resolution
is a term often used with the quality of a television
screen. First, it lets you know how many dots (pixels) per
inch can be crammed into each line. Next, resolution uses a
number to lets you know how many lines can fit down the
screen. The more common screen resolutions on big screen
monitors are 1280 x 768 and 1366 x 768.
Projection televisions can maximize the color aspect of the
image or can keep pace with fast action best depending on
the make and model. Before you purchase a projection big
screen television unit, decide whether you will need clear
fast action for sports or better color for general shows and
Some of the more common sizes of big screen televisions are
30", 42" and 50". The models that you often see in retail
advertisements are Pioneer, Panasonic, Samsung, Sony, JVC,
Toshiba, Philips, and Dell. Places where you can find these
big projectors are Circuit City and BestBuy.
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