08 Mar 2008 12:27:47 | Adam Fletcher
Gone are the days where you are forced to stare at white blips
on black screens.
As far as computer displays are concerned, a PC user can choose
from a wide range of sleek and snazzy models.
Whether you are crunching figures at a front office job or
crouched over a blood and gore video game in some deep recess of
your room, there is the right kind of screen available to suit
your needs.
Monitors are one segment where you are truly spoilt for choice.
Be it a 15-inch, 17-inch or 19-inch CRT monitor* or a sleeker
range of LCD screens*, there is a wide range to fit your budget.
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*Size and resolution*
There are two aspects you must consider when selecting a
monitor: physical size and resolution.
Screen size is the diagonal screen measurement, usually in
inches. For instance, a computer monitor display might be 14
inches wide and 11 inches tall. This same screen has a diagonal
measurement of 19 inches, which is the screen size.
Monitors also have an aspect ratio.
This is the ratio between the horizontal dimension and the
vertical dimension (horizontal dimension divided by vertical
dimension). Common monitor aspect ratios are 4:3 (1.3333) and
5:4 (1.25). Basics:
http://www.hardwaresoftwarearticles.com/archive/index.php/f-2.htm
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A 4:3 aspect ratio means the picture is 4 units wide for every
three units of height.
Wide screen monitors are easier on the eye (and much more
expensive).
The higher the resolution, the greater the ability to render
more detail. If you work with graphics or enjoy
graphic-intensive games, you will need a monitor with higher
resolution.
With most currently available models being flat screened, the
difference is in the size and picture quality. A resolution of
1024 x 768 is a good one for most users.
*CRT monitors*
If you've decided to get a new CRT, make sure it has a
sufficiently high refresh rate. This refers to how often the
screen is redrawn per second. With low refresh rates you can get
screen flicker and eyestrain. Virus:
http://www.hardwaresoftwarearticles.com/archive/index.php/f-14.ht
ml
Aim for a rate of 75 Hz for a monitor up to 17 inches in size
and 85 Hz for any larger monitor.
Another consideration for CRTs is dot pitch. The smaller the dot
pitch, the sharper the image. Opt for a dot pitch of 0.26 mm or
smaller.
CRTs function very well at multiple resolutions, can display
detailed graphics and can be viewed comfortably from wider
angles.
*LCD screens*
One of the primary disadvantages of LCDs when compared to CRTs
is their limited viewing angle. When viewing a LCD straight on,
it looks great. But the screen will appear washed-out if you
move your head over to the side and look at it from a wider
angle.
Also, LCDs are optimised to perform at a single resolution.
Low-end LCDs have viewing angles of only 100 degrees, which
won't give everyone crowded round your desk a clear view.
For a standard 15-inch LCD, try to get a 140 degree viewing
angle. Increase that by 20-40 degrees when shopping for an
18-inch LCD.
The brightness of LCD monitors is an important factor. LCD
monitors have several backlights that provide illumination. The
backlights in a LCD are good for 10,000 to 50,000 hours of
operation. Ensure that the backlights come with at least a
one-year warranty. Messenger:
http://www.hardwaresoftwarearticles.com/archive/index.php/f-7.htm
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*Making a choice*
LCD screens generally cause lesser strain to eyes than CRT
monitors.
CRTs have better graphics, but they tend to occupy five times as
much space.
If you are a gaming freak, then a CRT is a better option as it
is best for any graphic interface.
If you want the sleek look, an LCD is meant for you. It is
widely used in banks and treasury and trading rooms.
About Author :
Adam Fletcher is the webmaster of Hardware Software Articles
http://www.hardwaresoftwarearticles.com .