The 'Tube' in the website name YouTube also refers informally to what traditional display technology, abbreviated to CRT?
History of display technology many more individual picture elements ("pixels") could be incorporated into one display device, allowing graphic displays and video. One of the earliest electronic displays is the cathode ray tube (CRT), which was first demonstrated in 1897 and made commercial in 1922. The CRT consists of an electron gun that forms images by firing electrons onto a phosphor-coated screen. The earliest CRTs were monochrome and were used primarily in oscilloscopes and black and white televisions. The first commercial colour CRT was produced in 1954. CRTs were the single most popular display technology used in television sets and computer monitors for over
Cathode-ray tube a type of thin CRT known as the "Zeus" display which contained CRT-like functionality in a flat panel display. The devices were demonstrated but never marketed. Some CRT manufacturers, both LG Display and Samsung Display, innovated CRT technology by creating a slimmer tube. Slimmer CRT has a trade name Superslim and Ultraslim. A flat CRT has a depth. The depth of Superslim was and Ultraslim was . Despite being a mainstay of display technology for decades, CRT-based computer monitors and televisions are now virtually a dead technology. Demand for CRT screens dropped precipitously in the last half of the first