LG's new fingerprint sensor will allow for sleeker smartphones

LG Innotek's new invention gives us a delightful glimpse at the smartphone fingerprint scanner's future. Rather than having the circuitry built inside a dedicated button or surface on the device's front or back side, LG's engineers placed it into a 0.01in (0.03mm) pocket under the screen's glass cover. This will let device makers incorporate fingerprint security in a discrete manner, not compromising their design vision with the requirement of planning for specific features, such as buttons, pads, and other objects in order to house the sensor.

LG claims their module achieves fingerprint recognition rates comparable to traditional sensors, which sounds reassuring. The innovative smartphone maker hasn't announced any devices that use the invention, but the sensor should become part of select products throughout this or next year.

The company will be relying on this module to capitalize on the increased demand for mobile fingerprint sensors. As the smartphone industry shifts its approach towards budget models that compete with aggressive price tags and features considered 'premium' not long ago, manufacturers are looking to ship devices across low and medium price ranges with fingerprint security.

Due to increased demand, IHS projects fingerprint scanner shipments are about to become three times more valuable than they were by the end of 2015 over the next four years. It makes sense that LG will be looking to expand its component supplying business in search of growth opportunities, given that the smartphone market has nearly reached the ceiling.

source: Korea Times



1. FluffyBled unregistered

(Didn't read the post, Deleted)

2. ibend

Posts: 6747; Member since: Sep 30, 2014

will it work with tampered glass/screen protector? btw, is qualcomm's ultrasonic FP reader (under screen scanner) isnt ready yet? (LeEco use that ultrasonic reader but its form is like traditional one :-/ ) innovation.. not /s

7. sarcastic_nerd unregistered

All 3 technologies of the fingerprint sensors: optical, capacitive as well as ultrasonic support tempered glass. So there's no reason for it to not.

11. ibend

Posts: 6747; Member since: Sep 30, 2014

because this sensor already "under" glass.. and putting tampered glass above it means 2 layer of glass is above this sensor, thats why I ask..

12. sarcastic_nerd unregistered

Should work fine. It uses the same technology as the screens we use. If you put tempered glass on screen, the digitizer is 2 layers deep. Yet it works just fine.

16. DonChoi

Posts: 35; Member since: Oct 21, 2014

Qualcomm's ultrasonic tech-Sense ID produced only 1000 smartphones such as Le Max Pro(Le Max 2 more ?). At present, ultrasonic tech product isn't mass production stage same as Sonavation and InvenSense. LG Innotek's product seems to built-in or mount capacitive fingerprint sensor to tempered glass such as Corning Class 4 It's possible to change to design the bottom of smartphone

3. phljcnth

Posts: 561; Member since: Apr 30, 2012

So what happens when the glass breaks or scratches?

4. legiloca

Posts: 1676; Member since: Nov 11, 2014

good point.. probably the f.s will go 'nope' too? I don't know :D

8. sarcastic_nerd unregistered

same as what happens if a traditional fingerprint scanner breaks or scratches.

9. vincelongman

Posts: 5761; Member since: Feb 10, 2013

BTW, many recent fingerprint readers actually still work when only scratched e.g.https://youtu.be/0GQ43cF5TuU?t=1m35s Pretty impressive stuff

10. sarcastic_nerd unregistered

Not impressive at all. They are capacitive sensors, not optical ones. So the surface doesn't matter that much. They just measure capacitance at the surface and make an image of your finger based on where it touches. Now, a scratched surface won't matter much since the scanner is inside. It's like a screen won't stop working if the glass is scratched. Ultrasonic ones are totally immune to surface damage though, so that's even better.

13. vincelongman

Posts: 5761; Member since: Feb 10, 2013

I thought the very very uneven surface would throw it off Good that it doesn't Still waiting for Ultrasonic ones under the display, hopefully soon

14. sarcastic_nerd unregistered

Unless the finger is able to touch the surface, the sensor should work fine. But once the roughness goes beyond that, it will stop working.

6. fandroid2

Posts: 2; Member since: Jun 18, 2015

Honestly i think phone thickness is perfect the way they are right now lol.

15. shield

Posts: 870; Member since: Sep 12, 2015

good work lg.

17. tokuzumi

Posts: 1962; Member since: Aug 27, 2009

"their module achieves fingerprint recognition rates comparable to traditional sensors", aka "it doesn't work as good"

19. bassembm

Posts: 143; Member since: Dec 27, 2015

" True Innovation "

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