In screen Fingerprint reader 2018

First In-Screen Fingerprint Reader shows Vivo.


We are in 2018 and we want something new so guess what we got, Yes u guessed right we got the in screen fingerprint reader, now no more fingerprint scanner on the hardware maybe as Vivo shows up with in-screen fingerprint scanner.

So the question is "how does it works?"
         And we got the answer!!!

The fingerprint sensor made by sensor company Synaptics lives beneath the OLED display. That's the "screen" you're actually looking at beneath the cover glass.
When your fingertip hits the target, the sensor array turns on the display to light your finger, and only your finger. The image of your print makes its way to an optical image sensor beneath the display. It's then run through an AI processor that's trained to recognize 300 different characteristics of your digit, like how close the ridges of your fingers are. It's a different kind of technology than what most readers use in today's phones. 
Synaptics, which demoed the Vivo phone in a crowded booth at the back of an interminable hallway, says that the fingerprint reader won't suck up much more battery by illuminating your finger, promising that its power management is equal to industry standards.
however only premium flagship phones will get this tech but this is the beginning.