In the past two years, Android flagships have basically popularized fingerprint recognition under the screen, but at present, there are still few users who do not like fingerprint recognition, and face recognition is mainly used in daily use, and some even directly choose the model of side fingerprint. The main reason for this situation is that fingerprint recognition has one of the biggest pain points in the experience, that is, the problem of identifying the area.
At present, the existing technology can only realize a small area of the identification module, the largest recognition area on the mass production machine is only two fingers of the area, and limited by the stacking inside the screen, manufacturers may not be able to choose the most suitable location to place the identification area.
Therefore, the use experience of fingerprints under the screen of many models is not ideal, can not be quickly identified, and the meaning of fingerprints has been lost.
And now there is a technology that can achieve perfect fingerprint recognition under the screen.
According to the latest report, on January 4, Beijing Xiaomi Mobile Software Co., Ltd. obtained the patent authorization of "a full-screen fingerprint recognition device, display device and terminal".
The patent abstract shows that the full-screen fingerprint recognition device includes a controller and fingerprint recognition components, and a fingerprint light source. The device adopts the way of direct infrared LED, the full-screen fingerprint recognition light source is changed to infrared light, and the original display light source is separated, and the fingerprint recognition sensor only receives infrared light.
In addition, when fingerprinting is performed, only the infrared LEDs in the fingerprint area can be turned on, and the surrounding infrared LEDs can be turned off.
This means that Xiaomi's future models may achieve the effect that the entire screen can be unlocked wherever it touches, and the use experience of screen fingerprints will reach its peak, which is worth looking forward to.