https://www.cnet.com/news/samsung-shrinks-the-wall-microled-modular-tv-down-to-75-inches-ces-2019/

As the name suggests, MicroLED uses millions of individual teeny, tiny LEDs to create its image. It promises all of the great picture quality of OLED (perfect black levels, improved-off-axis viewing) along with superior brightness and less of a propensity for burn-in. 

At 75 inches for 4K resolution, Samsung's newest MicroLED is sized for smaller living rooms.