Micro LED TV's were showcased at CES this year.. so no it is not impossible. Also OLED burns in no matter the tech, even Apples displays do if you left a static image on for several hours a day, so OLED has traditionally been utterly useless for the working environment, even some Pro's have had burn in from tool bars in apps they use every day.
So we await to see how much better the Tandem OLED tech is at reducing burn in, it SHOULD help a lot. OLED is vastly superior at motion, for TV's, and of course contrast levels.
By the way folks, you do know you CAN buy an OLED reference monitor for circa 30K right? They have BOTH LCD and OLED tech available at that end of the market.