A plasma screen or plasma display is a television, usually larger in size, ranging from 40-inches to 65-inches. Other sizes may be available, but are less common.
Plasma screens are similar to LCD and LED televisions in that they are flat-panel, thin and are capable of being mounting on a wall. A plasma screen is made up of many tiny cells containing noble gases and a tiny amount of mercury. These cells are between two pieces of glass and electricity is passed through the cells, causing the gases to turn into plasma. Light is then emitted, generating a picture on the screen. Plasma screens support high resolutions of up to 1920 x 1080, have excellent contrast ratios, wide viewing angles, and high refresh rates that reduce video blur. They are excellent for fast action movies and sports games and overall provide for an excellent viewing experience.
However, plasma screens also have disadvantages. They may have increased chance of screen burn-in, loss of brightness over time, higher cost of use (higher electricity use), and be heavier. They usually have a lifespan of ten years.
In July 2014, Samsung announced that it would be ending its plasma TV development later that year. Coming after Panasonic announcing that they are ending their plasma TV development, many believe that plasma TVs will be a thing of the past.