Korean website The Elec today reported that Samsung will be the exclusive supplier of 120Hz displays for iPhone 13 Pro models:
Meanwhile, the two higher tier iPhones this year that will use RFPCB will have low-temperature polycrystalline oxide (LTPO) thin-film transistor (TFT) OLED panels.
LTPO OLED is needed for a 120Hz refresh rate screen. These panels will be supplied exclusively by Samsung Display.
Many sources have claimed that iPhone 13 Pro models will finally support a 120Hz refresh rate after years of rumors, including Apple analyst Ming-Chi Kuo, display industry analyst Ross Young, leakers Jon Prosser and Max Weinbach, and others.
120Hz support will be made possible by Apple adopting low-power LTPO display technology, according to reports. LTPO technology would result in a more power efficient backplane, which is responsible for turning individual pixels on and off on the display, allowing for a 120Hz refresh rate without a significant impact on battery life.
Similar to recent Apple Watch models, LTPO could also enable iPhone 13 Pro models to have an always-on display with the clock visible.
iPad Pro models have supported up to a 120Hz refresh rate since 2017 as part of a feature called ProMotion, which automatically adjusts the refresh rate depending on the content. A wide variety of Android smartphones now have 120Hz displays as well, so support for the higher refresh rate on the iPhone is more than due.