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How Does a Plasma Screen Work

By Jenny Jitea

Panasonic Plasma TV Teardown

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So How Do They Work?

Plasma screens are made of 2 sheets of glass with 2 gases stored between the sheets. The gases are xenon and neon and they fill thousands of tiny chambers. Behind each chamber are a series of red, blue and green phosphors. When electricity connects to the plasma chambers the colored phosphors produce the right color on your screen. They work in a very similar way to fluorescent tubes used for lighting.

Plasma screens may seem to be a new technology but actually they have been around since 1964 but only 2 colors could be produced then. Now we have high definition Plasma screens up to 150 inches in size. Japanese engineers are currently working on a 270 inch model.

What Are The Advantages Of Plasma?

Plasma TV's have more pixels per inch than the old fashioned CRT screens so they can produce a much sharper image. In the old style of CRT screens the pictures were made up of lines. If you look closely at a Plasma screen you will not see any lines. You will discover that most Plasma screens have a wide screen option so you can see movies in the way they were intended for cinema release. They are also ideal for the latest digital broadcasting methods.

One of the big advantages is the space saving. Without the traditional television tube to display the picture the average Plasma television is around 6 to 8 inches deep. Moving your Plasma onto the wall can really increase the amount of floor space and with careful positioning they can be viewed fro any part of your room. Most Plasma screens have a viewing angle of around 160 degrees.

Plasma screens are also very light especially when compared to a rear projection TV. A 40 inch Plasma TV will weigh from 50 to 80 pounds and provided you purchase a suitable bracket they can be hung very easily to a suitable wall. When fixing to the wall you need to make sure you use suitable fixings and choose a bracket which specifies the maximum weight it can carry. Most brackets offer a tilt facility to enhance your viewing position.
Plasma TV's can display up to 16 million colors so not only are they great for watching TV programs, they also make a good platform for the latest computer games consoles. Most Plasma TV's have inputs for HDMI and laptop computers connections making them ideal to use to display products and sales messages in offices and shops.

You will also discover that they are very easy to watch even on a sunny day or a very bright room. Unlike the old CRT screens they don't have a washed out look in bright conditions.

How Long Do They Last?

As technology has advanced Plasma screens have a much longer life and you should expect 30,000 hours of use. In other words your television would need to be on for 16 hours a day, every day for the next 5 years. By the time your TV needs replacing higher definition models will have become available.

Are They Good Value?

When the first Plasma televisions were designed for home use you didn't get much change from $5000 dollars for a basic small model. As the technology has improved and production has increased, prices have tumbled. You can now get a 37 inch model for as little as $1000 or even less so they are great value. Soon buying a CRT television will be a thing of the past as the new digital age is upon us.

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