The homogeneity of smartphones is still quite serious now, especially in the field of high-end smartphones. Everyone is the same. Except for some differences in material configuration, there are not many differences. But now the field of mid-range mobile phones is also starting to develop. Recently, Redmi's Lu Weibing announced that Redmi has successfully implemented off-screen fingerprints on the LCD screen. Currently, all LCD screen mobile phones can only use back fingerprints or side fingerprints like Redmi K30. The Redmi R&D team has now overcome this problem and implemented screen fingerprints on LCD screens with mass production capabilities. The innovative use of infrared high-transmission film materials greatly improves the passability of infrared light that cannot penetrate the screen. The infrared emitter under the screen emits infrared light. After the fingerprint is reflected, it penetrates the screen and shines on the fingerprint sensor to complete fingerprint verification, solving the LCD screen fingerprint problem.
Capacitive fingerprint recognition technology should be familiar to us. Before the era of full-screen mobile phones, almost all mobile phone fingerprint recognition technologies were capacitive fingerprint recognition. For example, the old flagship iPhone8 and Samsung S9 used capacitive fingerprint recognition. Identify. Capacitive fingerprint recognition technology has been developed for many years. Both the recognition speed and accuracy are very high. It can be said that it is quite mature.
When it goes well, pick up the phone, find the right location, press, hold, and unlock. When it doesn't go well, you need to locate it again or press it again. The failure rate is much greater than facial recognition. Therefore, many Android phones allow facial recognition (2D) and fingerprint recognition to work at the same time to improve the success rate.
Technologies like LCD screen fingerprints need to be jointly promoted by various mobile phone manufacturers. This is true for side fingerprint technology, and so is LCD screen fingerprint technology.
