Report: 'iPhone 13 Pro' Models to Feature Low-Power LPTO Display Technology
Apple will adopt OLED displays with low-power LPTO backplane technology for at least two iPhone models in 2021, according to Korean website The Elec.

From the report:
LG Display will expand the production rate of its organic light emitting diode (OLED) panel factory lines dedicated to Apple, TheElec has learned.
LG Display is planning to put in low-temperature polycrystalline oxide (LPTO) thin-film transistors (TFT) equipment that can add 25,000 substrates per month in monthly production rate into the lines by next year.
The LTPO equipment being placed in the factory lines will be for OLED panel supply to iPhone next year, while the ones after May will likely be for panels for iPhones of 2022.
LTPO technology would result in a more power efficient backplane, which is responsible for turning individual pixels on and off on the display. The technology could pave the way for longer battery life and/or new features like ProMotion or always-on display elements.
Display analyst Ross Young believes that LTPO is essential if Apple plans to support ProMotion in a future iPhone, as it would allow for a variable refresh as low as 1Hz when the device is inactive in order to optimize battery life. ProMotion allows for a variable refresh rate of up to 120Hz for smoother motion content and greater responsiveness. The feature debuted on the iPad Pro in 2017. There were rumors that some iPhone 12 models could feature ProMotion, but that never came to pass, possibly due to battery life concerns.
Apple Watch Series 5 and Series 6 models already use LTPO displays, which enables them to have the same up-to-18-hour battery life as earlier Apple Watch models despite having an always-on display. The Samsung Galaxy Note 20 Ultra and Z Fold 2 were the first smartphones with high refresh rate OLED displays that support adaptively changing the refresh rate.
According to the report, Apple will use LTPO technology for the two higher-tier iPhone models out of the four that it plans to launch in 2021. Apple analyst Ming-Chi Kuo expects Apple to release its "iPhone 13" lineup next year in four same-size models as the iPhone 12 series.
Popular Stories
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below.
Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent.
Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....
In a statement shared with Bloomberg on Wednesday, Apple confirmed that its software design chief Alan Dye will be leaving. Apple said Dye will be succeeded by Stephen Lemay, who has been a software designer at the company since 1999.
Meta CEO Mark Zuckerberg announced that Dye will lead a new creative studio within the company's AR/VR division Reality Labs.
On his blog Daring Fireball,...
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week.
Past Launch Dates
Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device.
Subscribe to the MacRumors YouTube channel for more videos.
Below, we've collated an updated set of key details that ...
The iPhone Air has recorded the steepest early resale value drop of any iPhone model in years, with new data showing that several configurations have lost almost 50% of their value within ten weeks of launch.
According to a ten-week analysis published by SellCell, Apple's latest lineup is showing a pronounced split in resale performance between the iPhone 17 models and the iPhone Air....
A U.S. appeals court has upheld a temporary restraining order that prevents OpenAI and Jony Ive's new hardware venture from using the name "io" for products similar to those planned by AI audio startup iyO, Bloomberg Law reports.
iyO sued OpenAI earlier this year after the latter announced its partnership with Ive's new firm, arguing that OpenAI's planned "io" branding was too close to its...
iPhone 17 Pro models, it turns out, can't take photos in Night mode when Portrait mode is selected in the Camera app – a capability that's been available on Apple's Pro devices since the iPhone 12 Pro in 2020.
If you're an iPhone 17 Pro or iPhone 17 Pro Max owner, try it for yourself: Open the Camera app with Photo selected in the carousel, then cover the rear lenses with your hand to...
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone.
In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....