It’s been a long time coming but an in-display fingerprint sensor has been shown off at CES 2018.
The demand for people wanting their phones thinner, smaller and less bezel has increased dramatically over the last year. This is probably due to the latest trend of 18:9 ‘bezel-less’ displays. The main issue was regarding the fingerprint sensor, which in most phones, was embedded in a home button on the front of the device. This caused the device to have a bigger bezel on the bottom chin. This had people calling for a change, they wanted an in-display fingerprint sensor.
Manufacturers saw this issue and moved the sensor to the back of the device (some already designed them like this), the issue with this is that it makes the phone thicker and manufacturers have to make the battery size smaller so they can fit in the fingerprint sensor. Until now that is.
Synaptics have created a new in-display sensor that is embedded into an OLED screen on the front of the device called Clear ID. A phone has already got the new technology fitted and has been shown off at CES 2018. Vivo is the first company to have this tech, it will be featured on an upcoming device that was shown off.
The in-display fingerprint sensor is its own standalone component and is relatively small, you can see it through the screen if you tilt the screen to a certain angle and have the right lighting, you cannot see it in normal use though. The device made by Synaptics can be placed anywhere within the screen so it could be placed at the top if that’s what the manufacturer wanted to do, this gives more freedom for different placements.
The technology only works with OLED screens though, this is due to the optical sensor having to scan your print through gaps in between the pixels on the screen, the screen will light up an icon (normally a fingerprint) and the sensor will scan your print within the gaps of the lit up pixels.
The in-display fingerprint sensor is being quoted as having a 0.7 second response time which sounds very fast but bare in mind that the OnePlus 5T’s sensor on the back, quotes a 0.2 response time. This doesn’t feel slow though it does take getting used to, it also requires a bit more pressure from your thumb/finger so that will take getting used to.
There is a great video created by Android Central below which shows the display in use.