LG Innotek today announced an under glass fingerprint sensor, which would allow the user to place their finger on the glass screen of their smartphone, to identify them.

I've been waiting for this technology to come along for a while. Ever since Synaptics and Qualcomm announced a similar product last year.

This hardware could enhance our current smartphone designs; imagine the iPhone 6S without that big fingerprint reader button, taking up all that valuable screen area.

LG Innotek's module works by cutting a shallow groove in the back of the screen glass and installing the fingerprint sensor inside of it.

Fingerprint sensors, on the mobile device, have become an expected feature in high-end smartphones. According to, IHS technologies, "unit shipments of fingerprint sensors were expected to have grown from 316 million in 2014 to 499 million in 2015 and will continue to increase each year to peak at 1.6 billion in 2020."

Most of that growth comes from Apple, who acquired fingerprint sensor maker, Authentec in 2012; and is currently using those sensors in all of their new device product line.