Vivo Unveils World's First Working In-Display Fingerprint Sensor!

A fingerprint icon on the lockscreen shows you where to place your finger

Vivo's been working on putting a fingerprint sensor underneath the screen for the last couple of years, and now it's finally made one that's ready for production.

Talking about the working, the company uses an ultrasonic sensor underneath the display and follows the principle of piezoelectric effects. That means that you've had to move your fingerprint sensor from the front, where many like it the best, to the back, or, as is the iPhone X's case, remove it completely.

Apart from its highlight in-display fingerprint sensor, nothing else is known about the smartphone as of now. The screen would register the fingerprint digit, spinning up a spider web of the blue pattern.

The actual phone that we demoed with vivo is still not finalized. The fingerprint reader itself is about the size of a small coin and works by scanning your finger through the tiny gaps found along the phone's pixels. While it travels on the surface, it creates a 3D map of the fingerprint under the display.

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When you set up a fingerprint on your mobile phone, you can unlock your phone, apps, authenticate payment methods and do pretty much anything that is required for password authentication. Device manufacturers were left with very little options, one of them being moving the fingerprint sensor towards the back of the phone - a move which received mostly negative reviews. Gone will be the days when smartphone vendors have to choose between placing the fingerprint reader in the home button, behind the phone, or ditching it altogether for facial ID as Apple has done. As soon as you press the icon on the screen, it has a Gestures function, which activates the Synaptics optical sensor with a cool tap animation to let you know that you have clicked and now can unlock the phone. Aside from the fact that you can't actually see the sensor, it works just like you'd expect it to.

For as many times as the fingerprint sensor worked, it failed just as many times.

Well, Chinese manufacturers showed a prototype of an in-screen fingerprint sensor even before the iPhone was out, but it was slow and not really where it needed to be to hit the markets. Patric further speculates that Clear ID is considerably less expensive when compared to Face ID, and that puts Synaptics at a definite advantage when compared with alternatives.

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