Why is the under-display fingerprint sensor a failed technology?

The fingerprint sensor under the display was supposed to be a perfect technology. Just place your finger on the screen as usual to unlock the phone. But is this technology really better than the alternatives and has all its promises been fulfilled? We will discuss this topic further.

BingMag.com Why is the under-display fingerprint sensor a failed technology?

The fingerprint sensor under the display was supposed to be a perfect technology. Just place your finger on the screen as usual to unlock the phone. But is this technology really better than the alternatives and has all its promises been fulfilled? We will discuss this topic further.

Brief history of fingerprint sensor

Years before Apple released the iPhone 5s with a fingerprint sensor, companies Others had taken action in this field. But the fact is that Apple played an important role in popularizing this feature. After the iPhone 5s, which was launched in 2013, the Galaxy Note 4 received this feature the following year.

BingMag.com Why is the under-display fingerprint sensor a failed technology?

The first fingerprint sensors were of capacitive type and very small electrodes were installed on these sensors. In the late 2010s, most smartphones were equipped with this feature. However, in 2017, Apple unveiled its facial recognition system known as Face ID, and the Chinese company Vivo also delivered the first phone equipped with a fingerprint sensor under the display to users. The phones themselves abandoned the use of fingerprint sensors, and although a large part of Android phones still use physical fingerprint sensors, flagship and expensive phones are entering the market with under-display fingerprint sensors.

Promises of under-display fingerprint sensor technology

BingMag.com Why is the under-display fingerprint sensor a failed technology?

Vivo X20 Plus is the first phone equipped with this It is a technology that was released in early 2018. This phone used an optical scanner that first shines a light towards the user's finger and then takes a photo of his finger using a small camera.

At that time, the placement of the fingerprint sensor on the front panel It was still a common phenomenon, and thus using an under-display fingerprint sensor allowed for larger screens and narrower bezels. This technology was very attractive at first and gave users the feeling of sci-fi movies.

Of course, the first generations of fingerprint sensors under the display had many problems. First, users had to place their finger exactly on a certain point, and at the same time, they were much slower than conventional sensors. Such problems are quite natural because all new technologies have limitations in the beginning. But the potential of this technology was so attractive that many users were impatiently waiting for the next generation of this technology.

  • What are the different types of fingerprint sensors?

The Future We Got Instead

BingMag.com Why is the under-display fingerprint sensor a failed technology?

Now in 2022, many phones They go to the market with a fingerprint sensor under the display. Samsung has been using this technology since 2018, and Google started using it in 2021. Now, instead of optical sensors, ultrasonic sensors are used, which sends a 3D fingerprint image to the phone with sound pulses.

The main problem with this technology is that the improvements made are not enough. The upgrades made in 2022 compared to 2018 are not that impressive. In fact, this technology still does not reach physical fingerprint sensors in terms of speed and convenience.

For example, the Galaxy S22 series phones, which are among the best Samsung flagships, still have many problems with the fingerprint sensor under the display. they create People who use these phones may try to unlock their phone several times.

Is the future of facial recognition?

BingMag.com Why is the under-display fingerprint sensor a failed technology?

Apple showed a few years ago that, in the company's opinion, the future is the facial recognition system. Although the under-display fingerprint sensor has a lot of potential, after several years of waiting, it seems that its key problems will not be solved anytime soon. If Android companies do not want to go back to physical fingerprint sensors for any reason, they should focus on building a system similar to Apple's Face ID.

Undoubtedly, Face ID also has problems, and for example, we can refer to the challenges related to Let's mention unlocking the phone when using a mask. The fact is that using a physical fingerprint sensor is still better than a facial recognition system and an under-display sensor. But as we said, the reality is that the potential of the under-display fingerprint sensor has not been realized and Android companies have to accept failure in this regard.

  • How does the under-display fingerprint sensor work? ?

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