phosphor dot matrix

A phosphor dot matrix refers to the way early Cathode Ray Tube (CRT) televisions and monitors displayed images using tiny colored phosphor dots arranged in a grid. Each dot emits light when struck by an electron beam, forming the colors and shapes you see on the screen. This grid of dots, typically arranged with red, green, and blue phosphors, allowed for the creation of colorful and detailed images. The pattern of these dots is fundamental to how CRT displays produced visuals before modern flat screens became popular.