In-display fingerprint scanner: The next iteration of scanning.

In-display fingerprint scanner: The next iteration of scanning.

The technology is evolving at a very rapid pace especially in the digital world. New technologies and inventions are being heard day by day. Whether it’s Artificial Intelligence (AI) and curved display, they are surprising us by all means. One of the technologies that impressed me a lot and I hope it would impress you also for sure is “In-display fingerprint scanner”. So in this post, we will discuss the working and technology used in it. So without any further ado. let’s get started.

What is in-display fingerprint scanning?

Vivo X20 Plus UD is the world’s first smartphone with an in-display fingerprint scanner (under-display fingerprint scanner) and Vivo X21, in India. Vivo did a show off in 2017 with it a prototype device, but this time, it’s in a phone that actually has been launched.

As the fingerprint scanner is built into the display there’s no need for a physical home key on the front of the phone which smartphones generally posses, which means slender bezels above and below the large screen.

In-display fingerprint scanner, Image credit: TechnoBuffalo

It also means there’s no need for a scanner on the rear of the phone. This gives the manufacturer greater flexibility in terms of design. The new technology also allows smartphones to be slimmer – which is good because the huge display makes it both tall and wide.

Its placement within the display also means the fingerprint scanner is ideally located for your thumb, making it easy to hit. There’s no potential smudging of the rear camera lens, or fumbling to find the scanner due to poor placement, and it also means you don’t have to pick the handset up from a surface to use the scanner.

Note: The display on the smartphone needs to be an OLED panel, which is why you are only going to find it on devices that have OLED screens.

How does in-display fingerprint scanner work?

Most smartphones having a dedicated fingerprint area (mostly back or below the display), which uses capacitive sensors for their fingerprint readers, which require your finger to have a pulse to be read. The optical sensor can’t physically sense a pulse.

The Vivo smartphone uses an optical fingerprint sensor made by Synaptics that’s hooked to the rear of the OLED display panel of the smartphone. Clear ID FS9500 is an optical sensor made by Synaptics, which can be placed beneath the display of the smartphone. The sensor uses the light emitted by the OLED panel to read your finger and scan your print.

The synaptic Sensor chip, Image credit: DNA India

Synaptics also said that it has built-in robust anti-spoofing system to ensure its reader can’t be fooled by others trying to imitate your fingerprint.

You’ll only know the sensor is there because the phone displays a fingerprint icon on-screen, prompting you to present your digit. Once the phone is unlocked, you won’t know the sensor is there.

Mechanism of an in-display fingerprint, Image credit: SlashGear

Future possibilities of this technology

As we already know, the sensor does not have to be placed at a single location, it can be placed anywhere under the screen. During the announcement of the Vivo APEX, which the company is calling it the “Half-Screen Fingerprint Scanning Technology” in which the bottom half of the phone is covered by this CMOS sensor. This means that you can place your finger anywhere at the bottom half and the phone will unlock without any ado.

Vivo NEX, Image credit: Technave

This development also indicates that there is a future where we might get to see smartphones with their entire displays being covered by the sensor.

A quick-list of smartphones having an in-display fingerprint

  • Vivo X20 Plus UD
  • Vivo X21
  • Vivo Nex
  • Vivi Nex S
  • Huawei Porsche Design Mate RS
  • Mi 8 Explorer Edition
  • Huawei Mate 11(Upcoming)
  • Oppo R17
  • Samsung Galaxy S10 (Upcoming)
  • Few more…

So that’s it for today guys. Did you enjoy reading about “In-display fingerprint scanner: The next iteration of scanning.”? If you have any suggestions and queries related to the post, let me know in the comment section below. Please do like and share this post to your circle to explore the knowledge you must know.

Thank you.

Anil Kashyap

I want to explore new things every single moment of life. Life motto: Learn and teach as much as you can until your last breath.

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