CRT Cathode-Ray Tube
The classic thick TV/monitor technology — an electron beam lights phosphor dots on a glass screen. Dominated displays until ~2007.
Karl Ferdinand Braun's 1897 invention. Colour variants use three electron guns + a shadow mask. Advantages that survive: perfect motion clarity (no sample-and-hold blur), zero input lag, soft 240p upscaling for retro games. The retro-gaming community hunts Sony PVM broadcast monitors at high prices. LCD and plasma displaced CRT in the consumer market 2005–2008. The last consumer CRT factory closed in 2015.