Monday, June 25, 2007

plasma display

What is a plasma display?

A plasma display is a flatpanel display. It does not use a cathode-ray tube (CRT), which traditional TVs and monitors do. They are bright, have a wide colour range, and can be manufactured in large sizes— up to 80 inches diagonally.

How does a plasma display work?

In a plasma display, light iscreated by phosphors, similar to those used in TVs, excited by a plasma discharge between two glass panels. Plasma is a gas made up of free-flowing ions and electrons.

Who invented the plasma display?

The plasma display was invented in 1964 at the University of Illinois, by professors Donald Bitzer and Gene Slottow, and graduate student Robert Willson.

Why do we need plasma displays?

Plasma displays are ideally suited for HDTV. They are capable of producing bright pictures, and are good for use in high ambient light conditions. They are also extremely thin and wall mountable, which gives them great flexibility for integration into a range of rooms and viewing environments.

When were plasma displays first used?

Although they were invented back in 1964, they first started becoming popular around 1999 or so.

Where can I find plasma displays?

Plasma displays are relatively common now. They are especially used in home theatres. As of 2004, the cost is down to $2,300 for a 42- inch diagonal screen model. In India, Samsung, Hitachi and Sony are the big players.

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