I know what youre gonna say… they display an image duhhhhh.
Well not necessarily. This is a lot more explaining than I can do, so I’ll leave it up to the Slow-Mo guys over on YouTube to fully explain it. From older tube-style CRT tvs, to todays top of the line LCD and OLEDs. They show how the picture is formed, and even at up to 300,000 frames per second… seriously.
Check it out.