In order to reduce PWM flickering on the iPhone 11 and iPhone 11 Max, we will use iOS Display Accommodations > Reduce White Point.
STOP FLICKER PREMIERE PRO PRO
DC Dimming in Apple iPhone 11 Pro and 11 Pro Max It is only after the user has logged in the DC Dimming takes place. Such devices clearly show flickering on their respective lock screens (where fingerprint scanners are supposed to do their work). This is clearly visible on devices featuring under-display fingerprint scanners. The display controllers are still hard-wired to change brightness levels with pulses any changes to that are implemented in form of semi-transparent overlays in software. While displays without flickering look great and don’t cause any ill effects, the current implementation is purely software-based. Today, the DC Dimming feature remains more of a gimmick.
To mitigate the issue, a number of Chinese manufacturers (Oppo, OnePlus, Xiaomi and Huawei) implemented DC Dimming, a feature that rids of the flickering by controlling brightness directly. In 2019, manufacturers started realizing that PWM brightness control has a number of users who either can see the flickering or are suffering with headaches and sore eyes. If you haven’t read it before, check out the “OLED Technology: PWM Brightness Control” and “What Apple Does About PWM Flickering” chapters to figure out what’s it all about. Last year, we published a comprehensive write-up on PWM flickering: iPhone Xs PWM Demystified. In this article, we’ll describe methods to get rid of OLED flickering on the last generations of Apple and Google smartphones without rooting or jailbreaking. Second, the displays flicker at brightness levels below 75%. First, the 90 Hz refresh rate is only enabled by Google at brightness levels of 75% or higher. While these OLED panels look great on paper, they have two major issues. Google has equipped its new-generation Pixel 4 and Pixel 4 XL devices with innovative OLED panels offering smooth 90 Hz refresh rates. The screen flickering is particularly visible in low ambient brightness conditions, and may cause eyestrain with sensitive users. While both panels feature higher peak brightness compared to the OLED panel Apple used in the previous generations of iPhones, they are still prone to the same flickering at brightness levels lower than 50%. The flickering is caused by PWM (Pulse Width Modulation), a technology used by OLED manufacturers to control display brightness. Just like the previous generation of OLED-equipped iPhones, the iPhone 11 Pro and Pro Max both employ OLED panels that are prone to flickering that is particularly visible to those with sensitive eyes.
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