What is Plasma Screen?

Plasma Screen is defined as a thin, flat-screen display device which is having electrically charged inert gases like xenon, neon, helium gas and phosphors to generate its display.

Plasma Screen

is defined as a thin, flat-screen display device which is having electrically charged inert gases like xenon, neon, helium gas and phosphors to generate its display.

 Working of Plasma Screen: In Plasma Screen inert gases are filled in the numerous cells which are present beneath the two glass plates. When electricity is supplied to the plasma screen than these inert gases become electrically charged and convert into plasma, which in turn starts emitting ultraviolet photons which are responsible for exciting the phosphors present on the back of cells to emit colored light/image.
Plasma Screen must not be confused with the other flat screen products like LCD panel as both the products are based on the different technology.

General Characteristics: Plasma Screens are brighter and having a wide variety of color accuracy. The Plasma Screen is only about 6 cm (2.5 inches) thick, while the total thickness, including electronics, is less than 10 cm (4 inches). They are thinner and so can be wall mounted. Power consumption in Plasma Screen varies greatly with picture content, with bright scenes drawing significantly more power than darker ones. They have superior contrast ratios to produce more realistic images. Due to the deeper pixel cell structure plasma technology looks to produce more three dimensional images. Plasma screens have much more viewing angles so do not suffer from degradations at high angles.

Due to the above reasons Plasma Screens have better picture quality in normal to low room lighting conditions. Plasma Screens show ideal for fast-moving images because of very high refresh rates. The lifetime of the latest generation plasma screen is estimated around 100,000 hours of actual display time or 27 years at 10 hours per day.

However Plasma Screens are having some demerits also like they are suppose to cause Global Warming due to the presence of a very potent green house gas i.e. nitrogen trifluoride. Plasma Screens need more power as compared to LCD’s. Plasma Screens have less resolution per same size as compared to LCD’s. Plasma Screens are prone to “burn in” i.e. premature aging of pixel cells. Plasma Screens are not preferred at higher altitude (e.g. in airplanes) as they emit a buzzing sound due to the lower air pressure. Plasma Screens are costly as compared to LCD’s.

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