In-screen fingerprint scanners or fingerprint-on-display (FoDs) have ongoing to become more common in phones, at least from Chinese brands. While they are partly imposing in how they allow such biometrics beneath the glass, they’re still stared to be slower and less precise than conservative fingerprint scanners. OnePlus has lastly jumped on that train but, never willing to settle, its rights to have come up with the fastest and smartest FoD in the market. So smart that it can really study your fingerprint over time.
Like regular fingerprint scanners, in-screen ones need you to enroll your fingerprint or fingerprints at least once and that’s that. They generate a secure record of your fingerprint, so to speak, to use as a reference when you try to unlock your phone. Most phone companies keep most of that tech under wraps for security drives but OnePlus is happy to share at least one feature.
A bit like the new generation of face gratitude systems, the OnePlus 6T uses “sophisticated algorithms” to improve over time. For each effective unlock, the sensor records more and more areas of the fingerprint that weren’t comprised in the initial arrangement. In short, OnePlus promises it recovers over time and therefore will unlock faster the more you use it.
That might also be how other in-display fingerprint scanners work anyway but OnePlus is the only one actually talking about it. Whether that has any safety implications, we’ll let the specialists weigh in soon.
Curiously, OnePlus also clarifies why it chose to use limelight for its FoD indicator color where most use white. It isn’t just artistic (though it definitely looks catching). OnePlus claims that their tests exposed that green light works best when scanning fingerprints, something other builders might take note of for the future.
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