However, according to the latest news, Xiaomi 7's fingerprint technology under the screen is subject to change. The XDA developer found out that by analyzing the MIUI firmware, the Xiaomi 7 is code-named “dipper”, but it also has a device named “dipperold”. The difference is that the latter carries the pre-sales of fingerprints under the screen and the former does not, but dipperold was cancelled.
Left: Millet dipperold Right: Millet dipper
Firmware shows that dipper's fingerprinting scheme comes from FPC and Meetings, dipperold's scheme comes from Synatic and Meetings, and Huiding's product has a 'fod' suffix, corresponding to 'fingerprint on display'.
After digging deeper, we discovered that the words “syna” and “goodix fod” appeared in MiuiKeyguard (lock screen APP), and further, there were code traces such as 'fingerprint circle' and 'fingerprint image'. After finishing, the results were as follows: -
It is expected that the image above is the screen lock effect of Xiaomi screen fingerprint.
However, as mentioned earlier, the leaked Xiaomi 7 has cut off this function. There are two possibilities. First, Xiaomi 7 will have a fingerprint version of the screen at the same time. Second, the fingerprint on the screen gives the other one. New machine.
XDA guessed that Millet 7 Plus is fingerprint under the screen, codename ursa, is also Xiaolong 845 chip, 4000mAh battery, OLED Liu Haiping.
Compared to the hesitancy of Xiaomi 7's on-screen fingerprint technology, Meizu, who is also an old rival on the other hand, has its own unique idea for fingerprint technology under the screen.
Some netizens discovered that Meizu Technology recently submitted an invention patent document entitled “A terminal and fingerprint unlocking method” to the State Intellectual Property Office. The document states that there are multiple ultrasonic transceivers in the non-display area of the screen. The device is connected. Once the ultrasonic transceiver detects a touch screen signal in the screen display area, it sends it to the processor. After the processor wakes up, it judges whether the first fingerprint data included in the touch screen signal matches the preset data. Match correctly to control the screen to unlock.
Simply put, the ultrasonic elements are placed on the four sides of the screen. When a fingerprint signal is detected, the detection is automatically activated. When the detection is consistent with the previously entered fingerprint, the mobile phone is successfully unlocked. When the ultrasonic elements are not used normally, they are in the sleep power saving state.
If this patent can be successfully commercialized, Meizu's full-screen unlocking will surpass the half-screen unlocking of vivo APEX and once again create a mback-style glory (mback was then launched and was followed by some domestic mobile phone manufacturers). Although the Meizu 15 series appearance Although not very uplifting, but from the Meizu Huang chapter notice's will fully polished 16 series' point of view, maybe it will use this ultrasound full screen unlock patented technology.