Plasma Displays

A detailed Summary of Plasma Displays

Up until the past couple of years, most televisions have been built around the same technology. This technology is the cathode ray tube. In CRT televisions, a gun fires a beam of electrons into a large glass tube. The electrons send phosphor atoms to an excited state that causes them to light up. They have good images, but they also have one big problem. They take up a lot of space and are very heavy.

Now scientists wanted to find a better way to fit a big television in a small room. They came up with the plasma flat panel display. They still come in large sizes, but are only about six inches thick. Plasma televisions illuminate tiny colored fluorescent lights to form an image. Each pixel is made up of three fluorescent lights. A red, green, and blue light. The plasma display varies the intensities of the different lights to produce a full range of colors like the CRT televisions.

al element in a fluorescent light. Plasma is a gas made up of free flowing ions. When free electrons are put into the gas, there is an electrical voltage established. The free electrons collide with the atoms, and knock loose other electrons. When an atom loses an electron, it gets a positive charge and becomes an ion. This causes many negatively charged particles and many positively charge particles to rush around the area. While they are all rushing around, particles are constantly colliding with each other. When there is a collision, an atom goes to an exited state. When it drops back to its normal state, it gives off a small amount of energy.

The main advantage of the plasma display technology is that you can produce a very wide screen using very thin materials. The image can be very bright and look good from any angle because each pixel is lit individually. You can also hang them like a picture. The main drawback to

Some common words found in the essay are:
Plasma Displays, plasma televisions, crt televisions, plasma display, crt televisions plasma, electrodes address electrodes, red green blue, light plasma, red green, televisions plasma, green blue, electrodes cells, phosphor material, fluorescent lights,

Approximate Word count = 632
Approximate Pages = 3 (250 words per page double spaced)

Category: Technology

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Plasma Displays

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