According to foreign media reports, in April this year, Samsung reported to the World Intellectual Property Organization (WIPO) He submitted a patent application entitled "Electronic Devices Including Biometric Sensors". Although Samsung has been considered as an enterprising and innovative enterprise in the past few years, we learned from the report that Samsung has always focused on developing its own offline fingerprint identification technology, and now the development of this technology is relatively mature. Foreign media generally predict that Samsung may use this technology on the Galaxy S10. Previously, it was thought that it would be used on the Samsung Galaxy S9, but later Samsung officially announced that it would give up.

From the patent picture, we can clearly see that this mobile phone uses a similar full screen design scheme as the Samsung Galaxy S9, and a fingerprint sensor is also installed under the screen. In addition, we can also see that this phone uses a foldable display similar to Apple's iPhone X, and the bottom of the screen is connected with a logic board. This technology can effectively reduce the thickness of the phone's screen border. But interestingly, we still see that Samsung's device retains the bottom border.

The patent also states that the device can read fingerprints through an optical sensor. We can indeed see from the above figure that there is an optical fingerprint sensor of an image sensor stacked at the bottom of the screen. The optical fingerprint sensor is the common fingerprint reading sensor used by most devices that use the optical fingerprint technology under the screen at present, including OPPO Find X, vivo NEX and Xiaomi 8 Explorer. According to foreign media reports, unlike offline fingerprint identification systems that use traditional optical fingerprint sensors to read fingerprints, Samsung Galaxy S10+may be equipped with more advanced ultrasonic fingerprint sensors to read user fingerprint data through sound waves. Although the patent application does mention that "this display may include an ultrasonic touch panel", it does not prove anything. Whether the technology described in the final patent can be commercialized is still unknown.

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