https://wccftech.com/ltpo-displays-for-iphones-better-battery-always-on-display/

With the exception of the Apple Watch Series 5, no other product from the company natively features an ‘Always on Display’. Fortunately, that might change thanks to the possibility of bringing LTPO displays for iPhones. According to a fresh report, apart from launching all major iPhone models with OLED screens, Apple is also expected to introduce LTPO screen tech for such handsets.

If the report from The Elec is to be believed, low-temperature polycrystalline oxide or LTPO could be used for future iPhones. The technology will feature a low-power backplane and it will be able to turn off individual pixels depending on the various colors resonating from the screen. As a reminder, Apple claims that both the Series 4 and Series 5, both of which use LTPO technology, can provide up to an 18-hour battery life, despite the latter sporting an ‘Always on Display’ feature.