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How Does a Plasma TV Work?

Nov 15th 2012 at 7:57 PM

Have you ever wondered, "how does a plasma TV work?" Well, it is because of how it works that a plasma TV has an advantage over other television types.

The plasma screen TV has been around for a few years now, and the technology is going from strength to strength. Despite increasing competition from other flat screen TV technologies such as LCD and LED TVs, the plasma screen is more than holding it's own with it's competitors.

So why is it still in such a strong position in today's television market? Because it is still very strong in the main area where it has always performed better than its rivals. The picture quality.

Plasma TV technology has always excelled when it comes to producing a fantastic picture - and it is for this reason that it is staying ahead of the competition from other television technologies.

So what makes a plasma screen TV produce such a good picture? Well, it is down to how it is made. So let us take a look at how a plasma TV works.

A plasma screen TV is similar to an LCD TV in that it is a type of flat screen TV, and the screen is made from a large grid of small pixels - but that is where the similarity ends.

The pixels in a plasma TV are filled with a gas, and these pixels are positioned between two electrodes. Keeping all this together are two glass plates at either side. Each pixel is also coated with a phosphor material and it is this phosphor that interacts with the gas particles to create colour.

The two electrodes at either side of the pixel are charged with a voltage and this causes an electric current to flow through the pixel cell - and therefore through the gas. This current stimulates the gas atoms and causes them to release ultraviolet photons.

The photons that are created then http://vimeo.com/53647855 interact with the phosphor coating on the walls of the cell to create light which can be seen by the human eye, and it is this colour which makes the image we see on our screen.

In actual fact, each individual pixel in a plasma screen is divided into three smaller pixels, each with a phosphor that creates red, green or blue light. As you are probably aware, by mixing red, green and blue in different amounts we can create all the colours in the spectrum. Therefore, each pixel can be accurately set to the exact colour required for the picture as a whole by varying the level of electrical charge in each pixel. By doing this across all the pixel cells in the plasma screen, it is possible to create an image with an excellent picture quality and colour accuracy.

It is the fact that each pixel is individually lit throughout the plasma screen which makes a plasma TV picture stand out from the other technologies such as LED and LCD TVs.

So now we can see why the way a plasma screen works results in a superb picture quality. It is an area where all the other television types are still trying to play catch up, as they are limited by the different way they produce an image.

That isn't to say a plasma TV doesn't have its disadvantages too, but you can follow the links below to find out more about the strengths and weaknesses of plasma TVs, plus many other buying tips for flat screen TVs.

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