An Apple Patent application published today reveals some of their work on fabricating microLED Displays for use in future devices
Last Wednesday (Jan 11) Patently Apple posted a report titled "Apple is reportedly planning to start using its own Custom micro-LED Displays for Apple Watch and iPhones in the next few years." Today the US Patent & Trademark Office published a highly technical patent application from Apple that relates to methods of fabricating microLED displays. Apple's patent stays focused on the technology while staying clear of market applications or target devices.
Source: patentlyapple.com