Plasma displays are a type of flat-panel screen technology that uses small cells filled with gas to produce images. When electricity is applied, the gas inside these cells ionizes and emits ultraviolet light, which then excites phosphors to create visible colors. This technology is known for its ability to produce deep blacks and vibrant colors, making it popular for large-screen televisions. Unlike LCD screens, plasma displays offer wider viewing angles and better motion handling, making them suitable for watching fast-paced content like sports or action movies. However, they are generally heavier and consume more power than other display types, leading to a decline in popularity with the rise of LED technology.