Apple is investing $330 million on a new factory in Taiwan to develop and manufacture new smaller micro LED devices for OLED. At present the latest iPhone has OLED but the iPad and Apple watches still use IPS technology.
OLED is still a significant part of the bill of materials for an iPhone which is motivating Apple to work on the technology. OLED costs are declining and ongoing development has been successful and making large panels.
The new Taiwan factory will produce LEDs and MicroLEDs for future iPhones, iPads, MacBooks, and other devices. For Apple, mini LEDs are only a viable alternative, the real target is MicroLED.
Apple will partner with an existing LED manufacturer, Epistar, and LCD panel manufacturer, AU Optronics. The report highlights the advantages of Mini-LED and Micro LED screens over LCD and OLED displays. This includes thinner and more energy-efficient amongst other things.
Power consumption of a MicroLED screen is only one-tenth that of an LCD display. In addition, its color saturation is close to that of OLED panels.
Apple wants to make the LED arrays substantially smaller so that better contrast and color is currently possible.
Televisions are available now with OLED displays but they tend to be double the cost of IPS displays. If the Apple developments are successful then a wide range of improvements in displays will be possible.