| Few tips
Before You buy Lcd computer monitor
Flat panel LCD (Liquid Crystal Display)
monitors have been available for quite a while and have been used
extensively in laptop computers. Until recently, the price of these
monitors kept them from being commonplace. However, recent price
reductions have now made them affordable for the average computer
user.
This is a big breakthrough for the average user. The
old CRT (Cathode-Ray Tube) monitors that sit on most desktops today
are ugly, heavy, and take up a lot of space. The new LCDs are better
in almost everyway. They are thin and lightweight. They free up
considerable precious desktop space. Because they use an entirely
different technology, they are inherently clearer and easier on
the eyes. They emanate no radiation and consume less power than
the CRT monitors.
Now that you know a little bit about LCD monitors,
there are a few things that you should know before you head to the
store for your purchase.
Analog vs Digital Hook-up
All flat panel monitors are digital, but they come
with two different types of connection, analog and digital. Some
monitors have both types of connection available and can be used
through either an analog or a digital connection. This is an important
distinction for several reasons. The way you hook the flat panel
monitor up to your computer will depend on the type of connector
that you have built into your computer’s video card.
Most of today’s computers have video cards with
only analog connections. If you have a regular CRT monitor attached
to your computer, you can be sure that you have an analog connection.
It is, however, possible that you have a digital connection available
as well. You can check your computer by looking at the video card
on the back of your computer. Follow the cable from the monitor
to the computer. It will connect to the video card. Compare the
connector(s) on the video card. An analog connector will have a
15-Pin VGA. VGA stands for Video Graphics Array. A digital connector
will have a 24-Pin DVI-D. DVI stands for Digital Video Interactive.
Analog vs Digital Performance
In side by side comparisons, a monitor hooked up digitally
will have better picture quality than the same monitor hooked up
through an analog connection. With an analog connection, there is
always some analog to digital conversion needed, and this will affect
the picture quality. Since the monitor is digital and the computer
is digital, if the connection is digital, no conversion is necessary
and the picture quality is better.
So why use analog at all? First, as previously noted,
most computers in use today have analog only video cards. Also,
the DVI (Digital Video Interactive) or digital connector used on
video cards, has only recently gained enough acceptance to become
a standard for future video cards.
Previously, flat panel monitors when used with an
analog connection were known to produce a kind of pixel jitter where
individual pixels on the screen moved around slightly. This didn’t
happen with laptop computers because they were always hooked up
directly to the video controls digitally, but it often affected
desktop flat screens. Improved technology in the newer monitors
with analog connections have eliminated this problem, making flat
panels with analog connections quite good.
Viewing Angle
One thing to be aware of when purchasing a flat panel
monitor is the viewing angle. All flat monitors look best when viewed
straight on. Once you move to the side or top or bottom of the screen,
the screen clarity drops off. This is where you will see one of
the biggest differences between the inexpensive and more costly
monitors. High end monitors will usually have better peripheral
viewing angles. In everyday use, the viewing angle makes little
difference if you sit directly in front of the monitor. If, however,
you sit at an angle or you plan to use the monitor to display the
screen to a group of people who gather around the monitor, the viewing
angle can be very important.
Size
The important thing to remember when discussing the
size of an LCD flat panel monitor is that the screen size is measured
differently than it is in the old CRT monitors. (I think they do
this just to confuse us!) Don’t worry about the details; just
be aware that a 15-inch flat panel monitor is bigger than a 15-inch
CRT. In fact, the viewing area on a 15-inch flat panel is almost
as large as the viewing area on a 17-inch CRT.
Extras
Inexpensive monitors will have only the basics, but
some more expensive monitors have additional features like built-in
speakers and USB ports. These are certainly nice, but usually unnecessary,
options.
A nice extra to look for is the amount of flexibility
that the monitor has in adjusting its viewing angle. You can tilt
most monitors to adjust the viewing angle from top to bottom. Better
monitors may also allow the unit to swivel from side to side and
have adjustments for the height of the monitor. Both of these are
great features.
One wonderful attribute available on some higher-end
monitors is the ability to turn the monitor 90 degrees to change
the viewing orientation from landscape to portrait. This is another
great feature that allows you to see more of a long document or
Web page.
The advantages of the flat panel monitors are obvious.
Recent price reductions have made them affordable for the average
computer users. If you think you might be interested, why not start
shopping them now?
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