iPhone display suddenly extremely bright? There s a good reason for that

iPhone display suddenly extremely bright? There s a good reason for that

Ever noticed? From time to time, the iPhone's display shines particularly brightly, even if the luminosity was previously set manually to the highest level. But how can this be? There's a good reason for that.

The typical maximum luminance (candelas per square meter or nits) of a modern iPhone is 625 or 800 nits. But the screen can actually do more. Sometimes parts of the display shine with up to an incredible 1,200 nits , i.e. almost twice as bright depending on the iPhone . But you can't get an Apple cell phone to shine like that manually via the control center, it only happens automatically in certain situations. And when is this the case?

Extremely bright iPhone display? The reason: HDR!

Whenever content is played back according to the HDR standard - i.e. certain photos and videos. As the name ( High Dynamic Range Image) suggests, these are high-contrast images with a high dynamic range. Apple writes about the iPhone screens on its own website:

"Super Retina and Super Retina XDR also feature High Dynamic Range (HDR), which delivers a wide range of dark and light areas in photos and videos. Deep black and brilliant white are also displayed, as are the many intermediate levels that add excitement to the image. Photos come alive – and in Dolby Vision, HDR10 or HLG, they captivate the viewer even more."

Robert briefly explains what HDR actually is:

These iPhones can

In short: Bright is then really bright and brighter than the highest level in "normal operation" of the iPhone. Just to be clear, HDR isn't an Apple invention . The standard can also be found in televisions and other smartphones . Suitable content, for example certain films on Netflix, is also displayed there with corresponding brilliance. By the way, not every iPhone is compatible with the said technology and shines like that. Specifically, the "brightness boost" can be used by the iPhone 11 Pro, Pro Max, the entire iPhone 12 series (from mini to Pro Max) and of course the new iPhone 13 (mini) and iPhone 13 Pro (Max) models. However, the basic iPhone 11 and older models fail at this.

And why ca n't you manually select said maximum brightness of 1,200 nits? There is a good reason for this and it is probably due to the durability of the screens . They don't shine that brightly for their entire "lifetime". If you want to have something of it for a long time, the brightness level shouldn't be set to "stop" all the time. In this respect, Apple also protects the customers a little bit from themselves if you want to.

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