Under-screen fingerprint technology is hot, or become a full-screen mobile phone standard

Nowadays, the comprehensive screen design has become the mainstream of smart phones. The comprehensive screen greatly enhances the screen ratio and value of the mobile phone, and also brings a more enjoyable visual experience, which is very popular among users. If a new mobile phone does not have Using a full screen, then even if it has a top-level configuration is useless, destined to look down on big waves.

At present, the screen share of mainstream mobile phones has reached about 90%. There is no space on the front of the mobile phone and the HOME button can be replaced. Therefore, some changes have appeared in the unlocking method of the mobile phone, and the fingerprint under the screen has become a new unlocking method. Allows the user to unlock the fingerprint with only a finger press, and also eliminates the opening of the phone, making the body more integrated.

At this year's CES 2018, Vivo exhibited the world's first mass-produced screen-printing fingerprint recognition mobile phone. Later, the vivo NEX and vivo X21 realized the mass production of the technology, and the fingerprints under the screen entered the public's field of vision. In addition to the vivo mobile phone, Huawei Mate RS, Xiaomi 8, Meizu 16 and other flagship models also use this technology.

At present, there are two kinds of fingerprint technologies under the screen, one is the fingerprint under the ultrasonic screen represented by Qualcomm, and the other is the most used optical fingerprint scanning technology. Among them, the principle of ultrasonic fingerprint recognition technology is to use finger texture and other The difference in the absorption, reflection and penetration of sound waves by the material identifies the location of the fingerprint and the location of the fingerprint. However, for the moment, this technology is a very new recognition scheme, which is not very mature.

In contrast, optical fingerprint scanning technology is much more mature. Its principle is that when a finger is placed on an optical lens, the finger is illuminated by the speed of light, and then reflected to the sensor for acquisition and recognition. Generally, optical fingerprints are used. Recognition realizes the fingerprint recognition under the screen, only need to place the sensor under the screen (the light source can be provided by the screen light source), so it has received the favor of the manufacturers, the vivo mobile phone is the technology adopted.

Now that time has come to the second half of the year, everyone knows that during this period of time, the competition in the mobile phone market is extremely fierce. Samsung, Apple, and Huawei will all launch flagship models, which will hope to promote the popularity of fingerprint technology under the screen. According to Digitimes media reports, At the end of this year, the shipment of fingerprint sensors under the screen will reach 42 million. By 2019, this number will reach 100 million.

At the same time, starting from the second half of this year, not only the flagship model, but also the mid-range models will adopt this technology. The fingerprints on the screen will be fully popular. In addition, the popularity of the fingerprints under the screen has also promoted the global shipment of OLED panels. In the Chinese market alone, there are 100 million mobile phones equipped with OLEDs.

At present, the fingerprints under the screen have become the mainstream trend. However, if you want to be fully popular, you need to solve some problems, such as the maturity of the technology and the cost. In addition, the face recognition method led by Apple Face ID is also relatively large. The impact. Since the launch of Face ID, the better debate on the screen fingerprint and face recognition has never stopped. But Xiao Bian believes that when the two recognition technologies are not perfect, they exist in a complementary relationship. Now, it is too early to discuss who will replace who.