According to the report, Apple's supplier Nichia has created a '0.3t LED chip' which requires significantly smaller connectors, therefore, cutting the bottom bezel down to as small as 2-2.5mm. By contrast, the 0.4t chips used in other LCD smartphones require 4-4.5mm connectors and result in the larger 'chin' seen on almost all iPhone rivals.
DigiTimes says the downside of 0.3t LED chips is decreased "accuracy and stability" and inevitably cost, but Apple is famed for enforcing exacting standards and testing is believed to have started back in early 2018 to mitigate these issues.
Nichia will be the sole supplier of these chips for the budget iPhone X.
The rest of Apple's ne iPhones will have OLEDs.
Meanwhile, the future of the iPhone SE remains unknown, when the new devices launch in September.