Plasma screens are a type of flat-panel display technology that uses small cells filled with gas to produce images. When electricity is applied, the gas turns into plasma, emitting ultraviolet light that excites phosphors to create visible colors. They are known for their ability to display deep blacks and vibrant colors, making them popular for home theaters and large-screen televisions. Although plasma screens were once favored for their picture quality, they have largely been replaced by LCD and LED technologies due to their higher energy efficiency and lighter weight. Plasma displays are also more prone to screen burn-in, where static images can leave a permanent mark on the screen.