For now, this year's Apple Watch Series 6 is expected to have an OLED screen like previous models, but the future model is likely to be An Apple product with MicroLED display technology, although it is still three to four years away. That was the reading of the chairman of Jinyuan Optoelectronics, A top Taiwanese LED producer, at which Epistar reportedly committed to setting up a factory to make MicroLED displays for future Apple products.

Apple is reportedly investing $330 million in a Micro LED plant in Taiwan, China, to produce displays for future iphones, ipads, macbooks and other devices. Microleds of 20-50 microns are too small to support PCB substrates with a minimum size of 50-100 microns, so glass substrates are used. Au Optronics, a Taiwan-based LCD panel manufacturer, will provide glass substrates for displays, and It is said to be focusing on improving the yield of Micro LED epitaxy and reducing the cost of large-scale transfers.

Micro LED screens have several advantages over LCD and OLED displays, including being thinner and more energy efficient. Micro LED screens, for example, consume only one-tenth as much power as LCD displays, and their color saturation is close to OLED. In addition, Micro leds can support higher brightness, higher dynamic range, and wider gamlette, as well as faster update times, wider viewing angles, and lower power consumption.

According to Kuo, an analyst, Apple has six mini-LED products in development that could be unveiled as early as 2020 and 2021. The technology will be first introduced in the 12.9-inch iPad Pro later this year, followed by the 27-inch iMac Pro, the 14.1-inch MacBook Pro, the 16-inch MacBook Pro, the 10.2-inch iPad and the 7.9-inch iPad Mini.