"Modular, MicroLED" sounds like a bunch of nonsense jargon, right? It's pretty much exactly that. Here's a simple breakdown of these new buzzwords:
MicroLED, in the case of this TV, means, according to Samsung: "It is a self-emitting TV with micrometer-scale LEDs — which are much smaller than current LEDs, and serve as their own source of light."
What that means for the average human being is that the TV doesn't need a backlight.
In terms of the TV being "modular," that means anyone buying "The Wall" can customize it.
"The screen can adapt to serve different purposes," says Samsung, "such as creating a wall-size display for multiple spaces."
Put more simply, "modular" means that you could customize this set to be even larger (or smaller) than 146 inches. For Samsung's purposes though, the version being released this year is the 146-inch variety.