Although the iPhone 5s is not the first smartphone with fingerprint unlocking, its appearance has opened the curtain on fingerprint unlocking of mobile phones, and since then the smartphone market has entered a new era of fingerprint unlocking!
As of October 29, 2015, the fingerprint unlocking camp in the smartphone market has been divided into three parts, represented by iPhone 6s, Samsung Galaxy S6, etc Press type front fingerprint unlocking , represented by Huawei Mate 7 and OPPO N3 Push type back fingerprint unlocking , represented by Sony Xperia Z5 and Nubia Z9 Push side fingerprint unlocking 。
Note: There are few models of sliding fingerprint unlocking, and only a few Samsung models are famous. In addition, none of the new models in 2015 use this fingerprint unlocking scheme. We won't discuss it too much here.
Press front fingerprint unlocking: Come on, just front!
The iPhone 5s is the first smartphone that uses the push home fingerprint unlocking mode. Since then, the industry has set off a wave of fingerprint identification. Later, Samsung and other manufacturers followed suit and used sliding fingerprint unlocking. In that era, the only smartphone that had a push home fingerprint unlocking scheme AuthenTec The company was acquired by Apple, so for a while, this technology could not be used on other mobile phones. A year later, other fingerprint identification companies followed up and popularized this fingerprint unlocking scheme, including Galaxy S6, Meizu MX4 Pro, One Plus Mobile Phone 2, and Zuk. All mobile phones used pressing the home key to unlock fingerprints. The Galaxy S6 solution was Synaptics Yes, but the push home key unlocking scheme of most domestic mobile phone manufacturers is Huiding Technology Yes.
The principle of pressing home key fingerprint unlocking: there is glass on the surface of the home key to protect the fingerprint identification module, and below the glass is a capacitive sensor. When the finger touches the home key, it forms a loop with the capacitive sensor, and the fingerprint identification module starts to collect fingerprint information, which is the first level of identification. Most companies do this step, Apple, on the other hand, has an additional layer of radio frequency identification, which transmits low-frequency radio frequency signals through a ring of metal ring on the outer layer of the home key, reads the distribution of electric field in the cortex, and obtains the texture image of the cortex.
Press type back fingerprint unlocking: back! Is the most humanistic
In addition to the front fingerprint identification, some manufacturers choose to put the fingerprint identification module on the back. Huawei Mate 7, OPPO N3 and other mobile phones use this back fingerprint identification scheme. Both of their mobile phone schemes are based on Fingerprint Cards AB In fact, the principle provided by the company is still similar to the press type front fingerprint recognition, but it just puts the module on the back of the machine. Some manufacturers call it "more humanized fingerprint unlocking". In fact, the press type scheme of Fingerprint Cards AB is not yet mature, and the fingerprint recognition sensor cannot be made smaller, In addition, Huawei Mate 7 also uses the virtual system key. If the fingerprint identification module is forced to be placed at the home key position, the home key must be enlarged, and it seems that the chin will be very long (HTC: I haven't spoken yet). So after choosing the solution of Fingerprint Cards AB, most manufacturers can only place the fingerprint identification module on the back.
Fingerprint identification module of Huiding Technology
In fact, manufacturers like Huiding Technology also have pressing back fingerprint identification solutions. After all, those that can be placed on the front can be placed on the back, but those that can be placed on the back may not be placed on the front.
Push side fingerprint unlocking: we haven't sold yet!
At present, only Sony Xperia Z5 and Nubia Z9 Max Elite are the side pressing fingerprint identification phones on the market. These phones have just been released (Sony Xperia Z5 is released today, Nubia Z9 Max The elite version is officially launched today). Their technical specifications are not clear yet, but it can be confirmed that their way is not much different from the front home key fingerprint identification.
As for who is the first mobile phone with side pressing fingerprint identification, there is a dispute because Nubia released the exclusive edition of Nubia Z9 equipped with the world's first side pressing fingerprint identification when it released Nubia Z9 in May this year, while Sony Xperia Z5 was officially released at IFA Consumer Electronics Show Berlin in October this year, But why does this article mention the elite version of nubia Z9 Max? Because so far, nubia Z9 exclusive edition has not been sold, and now five months later, even the elite edition of nubia Z9 Max has been open for pre-sale, while the Z9 exclusive edition is still invisible, and the official microblog of nubia has not made any statement, the only microblog about the Z9 exclusive edition also wrote that the appointment was officially opened on May 6
The scheme of lateral fingerprint identification has actually been exposed. The company providing technical support is Synaptics Synaptics said that the scheme was still in the research and development stage and could not be mass produced until the third quarter of 2015 at the earliest. When the Z9 premium version was released at a price of 4499 yuan, it was rumored that it was a futures mobile phone, and the fact proved that Sony's Xperia Z5 had been officially released and sold before the Z9 premium version was launched, Fortunately, Nubia finally launched the marketable side fingerprint identification Z9 Max Elite Edition a few days ago, although it was officially launched today.
last
We have to admit that fingerprint identification is a very meaningful security protection technology. Its popularity has raised the overall security level of smart phones to a higher level. As we said, no matter which fingerprint identification technology is front, back or side, their principles and application methods are very similar. At present, the technology of front press fingerprint identification is more mature, The speed is also fast, and the effect of pressing on the back is not bad, but the area of the fingerprint identification module is larger. The side fingerprint identification with the power key and fingerprint sensor together is not a problem in theory, but it puts the module on the side of the body, so the thickness of the phone is not easy to control, and we also get information from internal staff, Nubia's side fingerprint identification technology still had defects when the Z9 exclusive version was released, which eventually led to the abortion of the Z9 exclusive version. The Z9 Max elite version was officially launched today. We reserve our views on its side fingerprint identification effect.
