Not so long time ago Apple has unveiled the iPhone 14 Pro and Pro Max models, which had LTPO displays that support ProMotion refresh rates from 1 Hz to 120 Hz. The panel also allows the two smartphones to offer the AOD (always-on display) feature. Apple has limited these displays to the Pro models, and it is likely to remain so for the future iPhone 15 series.
According to the leak, the standard iPhone 15 devices will not come equipped with LPTO displays, meaning that the devices will not have ProMotion and always-on display support. The source also reports that Apple has settled the agreement on supplies for the iPhone 15 and will begin mass production soon. However, only the Pro series will support the 120Hz refresh rate, while regular and Plus models will have a regular 60Hz screen.
AOD is a relatively new feature for Apple smartphones, which recently appeared on the iPhone 14 Pro and Pro Max versions. Thus, it will be impossible for the iPhone 15 models to support AOD without the LTPO display, as the 1Hz refresh rate (available with LPTO) allows the screen to remain on without draining the battery.
Earlier, display analyst Ross Young also claimed that all models in the iPhone 15 series would support the Dynamic Island feature, but the standard models would not have LTPO panels due to production scale limitations.
The Vanilla iPhone 15 models may not receive the latest LTPO panels, but they may have a more energy-efficient OLED display driver chip manufactured using a 28-nanometer process. Current models use a chip based on a 40-nm process. It is expected that the 28-nm chip in the iPhone 15 models will significantly reduce power consumption, resulting in a longer battery life.