Displays made using micro OLED technology promise to be much thinner and energy-efficient than existing panels. The micro OLED project is still several years away from mass production -- the report suggests this will be used for future augmented reality products that require small but high-quality displays:
Apple is collaborating with its longtime chip supplier TSMC because micro OLED displays are not built on glass substrates like the conventional LCD screens in smartphones and TVs, or OLED displays used in high-end smartphones. Instead, these new displays are built directly onto wafers -- the substrates that semiconductors are fabricated on -- allowing for displays that are far thinner and smaller and use less power, making them more suitable for use in wearable AR devices, according to sources familiar with the projects.Besides micro OLED, Apple is also working on micro LED technology. If all goes well, this technique could be used for future generations of iPad, Apple Watch, and MacBook products. Micro LED screens do not require a backlight module and are significantly thinner than LCD panels. Furthermore, micro LED promises high color contrast as well as the ability to make curved or foldable screens.