These monochrome Monitors displayed diffirent colors based on the mix of phosphors applied to the target area. 'CRT (Cathode Ray Tube) Phosphors' Phosphors

These monochrome Monitors displayed diffirent colors based on the mix of phosphors applied to the target area. 'CRT (Cathode Ray Tube) Phosphors' Phosphors : https://en.m.wikipedia.org/wiki/Phosphor https://en.m.wikipedia.org/wiki/Phosphor Remember, Brightness adjusts the black level, and Contrast adjusts the drive. Picture Line-Up Generation Equipment (PLUGE) : https://en.m.wikipedia.org/wiki/Picture_line-up_generation_equipment https://en.m.wikipedia.org/wiki/Picture_line-up_generation_e... Edited to add stuff