วันพฤหัสบดีที่ 3 พฤศจิกายน พ.ศ. 2554

What Is A Computer Monitor?

A computer monitor is the gadget that is used to display images generated by the computer. There's only two main types of computer monitors, Lcd (Liquid Crystal Display) computer monitors, and Crt (Cathode Ray Tube) monitors. Crt monitors have been nearby for a very long, long time. The first Crt monitors have were created nearby the early 80s. They've been in main stream use for at least 35 years, and have by all means; of course seen best days, with Lcd Tvs taking over 50% of the store share for 2008. Lcd computer monitors have only absolutely been beloved for the last 5-6 years as they've become more affordable for the midpoint user. Now it's not uncommon to find a good 22" Lcd monitor for nearby 0, and that's beginning to get up into the prime models.

[b]Flat-panel Monitor[/b]

The monitor's screen size is measured diagonally, Crt monitor's screen size is regularly smaller than the labeled size by 1.5-2 inches, so a 19 inch Crt monitor has the same screen size as a 17 inch Lcd computer monitor. In the older days computer monitors aspect ratio were all the time 4:3, but now that we've discovered wide screen technology the aspect ratio has changed to 16:9 or 16:10, because it allows for more screen space sideways to get an improved picture. Crt monitors typically don't come in wide screen sizes. That is something you need to be true of when buying a Crt monitor, because it may seem like it's bigger, but that's mostly because of the cathode ray tube, circuitry and the enclosure.

Crt Monitors

Crt monitors comprise the display gadget (which is the cathode ray tube), the circuitry to originate the pictures from the computer's electronic signals, and the enclosure, this may not seem like much, but the bulk of it is the cathode ray tube. And that's why Crt monitors are becoming so uncommon due to their heavy weight, and bulky size.

Crt monitors originate their screen images by using a cathode (heated filament) inside a vacuum sealed glass tube. The electron gun fires off electrons at the cathode and they come into sense with the phosphor coated screen that glows when it is struck by the electron beam.

Lcd Computer Monitors

The Lcd computer monitor, when compared to a Crt display is a major revision in appearance and size. Lcd computer monitors screen size is a much more correct representation of the screen size. Lcd computer monitors are only as thick as the circuitry and the Lcd screen inside the case. This means the midpoint thickness varies from 1-2 inches, if that, though the bigger you go the thicker the size gets. I have a 32 inch Lcd Tv whose thickness is about 3 inches. I know, but that extra inch makes a huge difference.

Lcd computer monitors are made up of two pieces of polarized glass that hold a liquid crystal material between them. The backlight creates light that passes straight through the first piece of glass, while this is happening electrical currents force liquid crystal molecules to align; that allows varying levels of light to pass straight through to the second piece of glass to originate the colors and images on the screen.

Crt Monitors vs. Lcd Computer Monitors

Crt Monitors

Pros:
High discrepancy ratio High response speed Full range light output level Displays natively at approximately any resolution Cheap cost due to the rise in popularity of Lcd computer monitors
Cons:
Heavy weight Bulky and Large size High power consumption

Lcd Computer Monitors

Pros:
Decent discrepancy ratio Response rates vary, but are very fast on higher end Lcds Small size Small weight Low power consumption
Cons:
Only one native resolution More costly than Crt

So Which Should You Buy?

Go with the Lcd computer monitor, you will not regret it. Crt monitors are only economy than Lcd monitors, because Lcd computer monitors haven't been nearby for 30 years. It's year 2008, repaymen yourself by a getting a nice new Lcd flat panel monitor. You won't notice anything missing, and if you already have a Crt monitor, it's probably old, and it's probably going to die, the potential probably isn't all that good, you'll notice a huge revision over your old Crt monitor.

What Is A Computer Monitor?

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