display notches love them or hate them we can all agree
that the quest to eliminate bezels and push ever closer to that mythical 100
screen to body ratio in a smartphone is in fact stimulating a lot of innovation
from hidden cameras that pop up when you're using them to using vibrating
glass as your speaker but the one feature that we have in our
hands today that seems to me at least less like a gimmick and more like the
new paradigm moving forward is fod or
fingerprint on display with the latest example of this technology right here on
the 6t from oneplus so they reached out to sponsor a video
all about this new fingerprint scanning technology and how exactly it works so
let's unlock its secrets
oh no that's just we're just unlocking the phone there's no secrets
sorry wait just hold on a sec
okay first things first definitions ever since the first fod prototypes showed up
at ces 2018 people have erroneously been
calling them in-screen fingerprint readers but technically speaking these
implementations are actually under screen fingerprint readers so with an
under screen scanner like the one in the oneplus 6t there's the glass
then the amoled display panel then the
fingerprint reader an in-screen reader would be a technology we don't actually
have yet where the scanner would actually be integrated within the
display panel which would presumably allow large areas of the screen or even
the entire screen to read your fingerprint enabling ideas like
multi-finger authentication or even continuous authentication where the
device never stops reading your fingerprint throughout an entire session
or transaction that's really fun to think about but let's bring it back to
the present day because even this would have seemed pretty sci-fi a few short
years ago something that's especially mind-boggling considering that oneplus
themselves have been experimenting with this technology in their Labs since back
in 2017 when they had actually intended
to include it in the oneplus 5t as for
why that never happened oneplus says the tech just wasn't ready yet the hardware
was larger taking up precious space inside the phone and that module
actually had to be bonded onto the screen increasing the cost and the
complexity of repairs more importantly for the user though
they felt that the first gen scanner just wasn't fast enough or consistent
enough to ship with a oneplus logo attached now two phone generations later
the 6t uses a newer smaller fingerprint
module from goodix that oneplus says is the fastest in the industry unlocking
the phone in just .36 seconds unlike the
capacitive fingerprint scanners that most of us are used to the 6t uses an
optical scanner so the phone's display is actually used to shine a light at
your finger apparently they got the best results with green light and then the
reflected light that reaches the fingerprint sensor creates an image of
your fingerprints minutiae the distinctive ridges valleys and forks
that comprise your unique fingerprint the scanned image is then compared to
the fingerprint that was stored in your snapdragon CPU's trust zone which is
analogous to an iphone secure enclave back when you first trained your
fingerprint model self-learning algorithms help compare your minutia to
the saved image more quickly and if there's a match the phone unlocks
lickety-split and now for some rapid fire q a from
some guy is it durable yeah it's rated for 300
000 unlocks is that a lot though that's about like unlocking your phone
150 times a day for five years
what if i have a screen protector then that will not affect it at all
okay smart guy what if i have a bunch of scratches or even a crack on my screen
okay now we're getting into your mileage may vary territory if you have a small
crack then it probably won't affect it
if you have a bigger crack then it's probably a good idea to train the model
with the crack already there and if you have a really big crack well
then you should go to the gym well see you later
so in summary this is something that i've been
particularly amped about because even way back when the first phone started
showing up with fingerprint scanners on the back i've been looking at that going wow
i hate this i hate everything about it because i use my phone sitting on the
desk in front of me an awful lot whether it's to browse through notifications
swipe them away or whatever the case may be and having a fingerprint scanner on
the front allows me to pick up my phone less which i don't know about you guys
but for me is definitely a quality of life improvement so being able to just
go like this go yes that's important no it's not type of dtap and be done
huge improvement absolutely love it so thanks for watching guys thanks to
oneplus for sponsoring this video if you guys disliked it you can hit that button
but if you liked it hit like get subscribed or maybe consider checking out where to buy the stuff we featured
at the link in the video description also down there is our merch store which
has cool shirts like the one i'm wearing and our community forum which you should
totally join did i train this finger oh i did yeah okay okay okay
thanks some guys