Compared with physical fingerprint recognition, screen fingerprint can ensure the screen ratio of mobile phone to the greatest extent, but it is still slightly weaker than mature physical fingerprint in recognition speed and accuracy. Recently, OPPO, a domestic mobile phone manufacturer, obtained a patent for ultrasonic fingerprint identification, which can improve the accuracy of ultrasonic fingerprint identification and let us see the new possibility of fingerprint upgrade under the screen.
(fingerprint identification)
The enterprise search APP shows that the patent authorization of OPPO is called "Ultrasonic Fingerprint Identification Method, Device, Electronic Equipment and Storage Media", and that of WeChat official account is CN110298313B. According to the patent abstract, the patent divides the touch screen corresponding to the fingerprint pressing operation into a first area and a second area, wherein the first area corresponds to m ultrasonic fingerprint identification modules, and the second area corresponds to n ultrasonic fingerprint identification modules, and m and n are positive integers, which means that these two identification areas can have more than one fingerprint identification module. When the fingerprint pressing operation is detected, the ultrasonic fingerprint identification modules corresponding to the first area and the second area will be awakened to perform ultrasonic fingerprint identification, thereby improving the accuracy of fingerprint identification.
(OPPO ultrasonic fingerprint identification patent has been authorized)
At present, the common screen fingerprint recognition is optical screen fingerprint. In contrast, the ultrasonic screen fingerprint scheme has stronger penetration, high anti-pollution ability, and can be unlocked even if the hands are wet, with high recognition rate and fast recognition speed. OPPO's newly authorized patent uses ultrasonic fingerprint recognition module in two display areas, which further improves the recognition accuracy. If this patented technology can land, it will undoubtedly improve the recognition speed and accuracy of screen fingerprints.
(Screen Fingerprint Identification)
In addition to this authorized patent for ultrasonic fingerprint identification, OPPO has also made achievements in the field of fingerprint unlocking. A while ago, OPPO obtained the patent of full-screen fingerprint recognition, which can provide a structure to set the fingerprint recognition function on the display screen, thus realizing the full-screen fingerprint recognition function. Through this technology, users can unlock fingerprints by pressing them at any position on the screen without aiming at a single fingerprint position when unlocking, which will greatly improve the unlocking experience compared with the current single-region fingerprint recognition.
(OPPO has obtained patent authorization for full-screen fingerprint identification)
In general, OPPO has been studying fingerprint identification technology and exploring front-end technology. There was a patent authorization for full-screen fingerprint recognition before, and maybe the whole screen can support recognition and unlocking in the future; Now there is a patent for ultrasonic fingerprint identification, which further improves the accuracy of fingerprint identification. With the authorization of these patents, maybe in the near future, we can see OPPO really put these technologies into mobile phone products. At that time, I believe that the experience of fingerprint identification under the screen will be greatly improved, which will bring about an innovative upgrade of the fingerprint unlocking experience under the screen.