This smartphone fingerprint sensor checks your temperature for extra security.

Your next smartphone is probably going to have a fingerprint sensor under the screen that measures your temperature, just to make sure you’re a real human!

A group of Korean researchers revealed they have developed a flexible, transparent fingerprint sensor array that can be used to measure pressure and temperature.

The sensor is the work of scientists from the Samsung Display-UNIST Center at Ulsan National Institute of Science and Technology in South Korea. As they explain in the paper, most capacitive fingerprint sensors currently used in smartphones are opaque, so they need to be hidden away under a bezel, beneath a home button or on the back of the device.

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