Ultrasonic finger print technology allows phone manufacturers to ditch the home button and bezel. The technology could extend the phone real-estate by 10-20% depending on the maker. But that’s probably not the most important perk.
In the race to maximize screen real-estate Chinese phone manufacturer Vivo introduced Vivo Under Display in June of last year. The technology is based on ultrasonic finger print recognition, an approach that isn’t affected by light, water or smudges (i.e. when your child hands your phone back to you, you can still log-in). Ditching the home button allows Vivo to drop the bezel and extend the screen profile. Increased screen real-estate is a big plus for users.
Below the Surface
Eliminating the phone bezel is an attractive trend but security is the driver. What matters is protecting user information and payment authentication. Current optical Touch-ID is strong and quick, but not infallible.
It’s not Just Payments
In an earlier post I wrote about how the line between fitness device and healthcare device has been blurred. Sensitive health data is being collected and stored on more phones than ever. Everything from EKG to blood pressure, so the importance of securing that information is crucial.
A Change in Technology
Ultrasonic Piezo Transducers
Piezoelectric transducers are not new. Dr Heiji Kawai first discovered the piezoelectric properties of PVDF in 1969. Piezoelectric transducers work by converting energy into rapid mechanical vibrations creating acoustic waves. PVDF transducers can be shaped to focus those acoustic waves at very high frequencies. These waves are inaudible to humans. Our ability to detect sound drops off at the 20kHz range. Our dogs on the other hand, can detect sound up to 40kHz. Keep this in mind the next time your dogs ears perk up and they stare off into space for no apparent reason.
The one password you can never change
With enough resources no single security roadblock is insurmountable. That’s why we can expect phone manufacturers to continue to approach security in layers. If new ultrasonic finger print detection does one thing really well, it narrows the field of potential villains. But, that doesn’t mean it will necessarily be the single authentication solution in the future. Any single solution, facial recognition or print ID, is in theory susceptible. If it’s used as a master password and someone finds a way to spoof it, we have a problem.
Disclaimer: All data and information provided on this site is for informational purposes only. Kureha America makes no representations as to accuracy, completeness, currentness, suitability, or validity of any information on this site. Also, Kureha America will not be liable for any errors, omissions, or delays in this information or any losses, injuries, or damages arising from its display or use. All information is provided on an as-is basis and the opinions expressed on this blog and those providing comments are theirs alone, and do not reflect the opinions of Kureha America or Kureha Inc or any employee thereof.