The popularity of full-screen mobile phones has brought a lot of convenience to our work and life, and it has also changed our previous mobile phone usage habits. The most obvious one is the screen unlocking solution. In order to strive for a higher screen-to-body ratio and a more perfect non-porous body, manufacturers have gradually disappeared physical fingerprint recognition buttons, and under-screen fingerprints have become the current mainstream. However, most of the current under-screen fingerprints are optical fingerprint solutions, which are hidden on the screen. The camera under the screen is used to identify fingerprints and unlock. The technology is now very mature.
Recently, OPPO has disclosed another under-screen fingerprint technology patent - ultrasonic fingerprint recognition. Through multiple ultrasonic fingerprint recognition modules, it can effectively improve the accuracy of ultrasonic fingerprint recognition. You should know that ultrasonic fingerprint recognition, as the third generation of fingerprint recognition technology, has the ability to penetrate materials. Therefore, compared with the currently popular optical fingerprints, the accuracy of fingerprint recognition is higher, even with dirty or wet hands. Quick unlocking has a higher security factor and more prospects.
Not only that, ultrasonic fingerprint recognition can also bring a larger identification area. The current mainstream optical fingerprint unlocking solution has a recognition area only about the size of a thumb, and users must align their fingers at a designated position to unlock. If the fingerprint recognition module of the mobile phone manufacturer is placed too low or too high, the unlocking experience will not be very user-friendly. Ultrasonic fingerprint recognition can theoretically achieve half-screen recognition or even full-screen recognition, so that everyone does not need to stick to a certain area when unlocking, and unlocking will be more convenient and faster.
Interestingly, in order to solve this pain point, OPPO has already exposed the patent authorization of "a module, terminal device and fingerprint identification method that supports full-screen fingerprint identification". Through this technology, the mobile phone can provide a structure to set the fingerprint recognition function on the display screen, thereby realizing the full-screen fingerprint recognition function. In this way, OPPO's full-screen fingerprint recognition can increase the fingerprint recognition area of ??today's full-screen mobile phones. When unlocking, users do not need to align the fingerprint position and can unlock the phone at any position on the screen. The operating experience is quite good. Compared with today's single-area fingerprint recognition, there will indeed be a big improvement. With the advantages of ultrasonic fingerprint recognition, the under-screen fingerprint unlocking experience will naturally be faster and more accurate.
It is worth mentioning that the technical principle of full-screen fingerprint recognition is to use the gaps between the RGB pixels of OLED to place the light-sensitive fingerprint recognition unit, thereby realizing the full-screen fingerprint recognition function, which is very important for the fingerprint recognition module. The photosensitive capacity and area are very demanding, and the technology is also very difficult. The power of OPPO's innovative technology is evident. However, judging from OPPO’s performance in technology research and development in recent years, as of June 30, the number of global patent applications exceeded 65,000, and invention patent applications accounted for 90% of all patent applications. In 2021, the top 100 PCT international patent applications by Chinese companies In the list, OPPO ranks second. With such strong innovation strength, it is not surprising that OPPO can take the lead in providing better solutions for under-screen fingerprint scanners.
In general, with optical screen fingerprints becoming mainstream, OPPO has been working hard to develop faster and more accurate fingerprint unlocking solutions. It not only obtained a full-screen fingerprint unlocking patent, but also launched a more advanced The ultrasonic fingerprint recognition technology brings another unlocking solution to the industry. I believe that with OPPO’s technology popularization efforts, perhaps we will see OPPO launch a mobile phone based on this patent in the near future. By then, I believe that there will be a significant improvement in the experience of under-screen fingerprint recognition, so you might as well look forward to it .