The principle of operation of a plasma TV: device, advantages and disadvantages

Thanks to the advent of plasma technology, we got the opportunity to enjoy flat-screen TVs, which are quite realistic to hang on the wall like a normal picture. The first such TV was created in the 90s in Japan, and in 1997 mass production was launched. Since that time, the characteristics of technology have changed significantly for the better.

How is a plasma TV

The plasma panel is made of a million pixel cells, which, in turn, are filled with gas, it can be xenon or neon. These cells are placed between the glass plates. As a result of the electric charge entering these cells, the gas changes its state. It becomes aggressive, in physics this condition is called - plasma. That, in fact, and all the wisdom, and it became clear where the name comes from, which we are familiar with.

Such a technique has become widespread due to its relative availability and high quality. By installing a TV that works on this principle in your home, you can enjoy quality image on the screen, while you can have no doubt that the image will not skip or will fuzzy.

What is the principle of work

The principle of operation of such systems is based on the process of luminescence of gas in the cells in the case when an electric current is passed. We can say that the plasma panel is a matrix that consists of a huge number of tiny fluorescent lamps. Each of the cells acts as a capacitor with electrodes and is made of three tiny lamps that are filled with ionized gas. As a result of the charge, the plasma begins to emit ultraviolet light. One of the lamps is activated and glows, namely red, blue or green. Thanks to the presence of glass, ultraviolet radiation is blocked, and the light that is for us visible, is converted thanks to a scanning electrode, and we get an image on screen.

REFERENCE. As noted, only three colors of lamps were used inside the equipment, but as a result of the level of the applied voltage, it turns out to display bright, multi-colored and saturated pictures on the screen.

Advantages and disadvantages

It is worth considering the advantages and disadvantages of such a technique. As you know, the contrast ratio is one of the main ones in determining image quality. The image displayed on the screen with high contrast will have a realistic character, conveying spatiality. This is one of the main advantages of this technology. We list the main positive characteristics:

• High contrast.
• The width of the viewing angle is at a very high level.
• Black color is saturated.
• Excellent color rendering.
• Really high quality image.
• The frequency of the picture change is at a high level.
• The term of operation is up to 35 years.

These are the main positive parameters of the equipment working on this technology. Consider the disadvantages:

• You will not be able to find models with a small diagonal in stores; this is often very inconvenient.
• With prolonged use, the equipment tends to heat up.
• High energy intensity.
• Insufficient brightness compared to LCD technology.

IMPORTANT. It is worth noting that quite a lot of electricity is spent on converting an inert gas into a plasma. That is, the main function of the TV consumes a large amount of energy. For the purpose of cooling, the technology provides for the presence of fans, and they also consume energy.

During operation, the plasma contrast will decrease. As a result, after several years of operation, you will notice that the image is not so bright, color rendering will fade at times compared to the result that you saw at the beginning of operation TV.

When applying a static voltage, for example? when connected to a computer, the pixels may well burn out in the plasma. If you operate the equipment exclusively for its intended purpose, this may never happen at all.

REFERENCE. Modern technology is protected from the possibility of pixel burnout, the device may break, but this happens extremely rarely, because the work is carefully thought out.