Before Apple cancelled it, their plan was to introduce MicroLED to their premium smartwatches and then to their premium phones. It's in the article. Meanwhile,

Before Apple cancelled it, their plan was to introduce MicroLED to their premium smartwatches and then to their premium phones. It's in the article. Meanwhile, TVs with MicroLED are extremely expensive. They can't currently be made on one substrate, or even multiple per substrate, so they instead stick multiple smaller tiles together.