Front, back, or side? Unlock your mobile phone fingerprint!

Although the iPhone 5s is not the first smartphone to have a fingerprint unlock, it has opened up the fingerprint unlocking of handsets, and the smartphone market has entered a new era of fingerprint unlocking!

As of October 29, 2015, the fingerprint unlocking camp on the smart phone market has been divided into three pieces. The push-type front fingerprints represented by iPhone 6s, Samsung Galaxy S6, etc. have been unlocked , represented by Huawei Mate 7 and OPPO N3. The fingerprint-type back fingerprint is unlocked and unlocked by a push-type side fingerprint represented by Sony Xperia Z5 and nubia Z9 .

Remarks: There are few models that can be unlocked by sliding fingerprints. There are only Samsung's individual models, and the fingerprint unlocking scheme is not used in the new machine in 2015. We do not discuss it too much here.

Press-type front fingerprint unlock: Come on, just positive!

The iPhone 5s was the first smartphone to use a press-type home-key fingerprint unlocking mode. From then on, the industry started a wave of fingerprint recognition, followed by Samsung and other manufacturers to follow up and use a sliding fingerprint to unlock it. In that era, AuthenTec was acquired by Apple because it was the only press-key unlocking program for home keys. Therefore, this technology could not be used on other mobile phones. After a year, other fingerprint recognition companies will follow suit. This kind of fingerprint unlocking scheme is popularized, including Galaxy S6, Meizu MX4 Pro, One Plus Mobile Phone 2, ZUK and other mobile phones all using the press type home key fingerprint unlocking, in which the Galaxy S6 solution is provided by Synaptics , and most domestic mobile phone manufacturers The pressing type home key unlocking scheme is provided by Huiding Technology .

Press the home key fingerprint unlock principle: in the home key surface to protect the fingerprint identification module glass, below the glass is a capacitive sensor, when the finger touches the home key, and the capacitive sensor circuit, fingerprint recognition module began to collect fingerprints Information, this is the first level of identification, the vast majority of companies are doing this step, and Apple is also a layer of wireless radio frequency identification, through the outer ring of the home button a ring of low-frequency radio frequency signal emitted radio frequency, read the skin The electric field is distributed so as to obtain a texture image of the cortex.

Push back fingerprint unlock: back! Is the most humane

In addition to frontal fingerprint identification, some manufacturers choose to place the fingerprint identification module on the back. Huawei Mate 7, OPPO N3 and other mobile phones use this back-side fingerprinting solution. Their two mobile phone solutions are based on Fingerprint Cards. AB company provides, in fact, its principle is still similar to the press-type frontal fingerprint identification, but is the module on the back of the machine, individual manufacturers call it "more humane fingerprint unlock", in fact, mainly Fingerprint Cards AB's push-type solution is not yet mature, and the fingerprint identification sensor cannot be made small. In addition, Huawei Mate 7 uses a virtual system key. If the fingerprint identification module is forced to be placed on 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 put the fingerprint identification module on the back.

Huiding technology fingerprint identification module

In fact, manufacturers such as Huiding Technology actually have press-type fingerprint recognition solutions. After all, they can be placed on the back of the front, but they are not necessarily on the front.

Push-type side fingerprint unlocking: We haven't started selling yet!

Currently on the market side of the press-type fingerprint recognition mobile phone only Sony Xperia Z5 and nubia Z9 Max elite version, this type of mobile phones are just released not long (Sony Xperia Z5 Bank of the country only released today, nubia Z9 Max Elite officially opened today For sale), their technical specifications are not yet clear, but it is certain that they do not differ much from the positive home key fingerprinting.

As for who is the first mobile phone with side-press fingerprinting, it is controversial because nubia released nubia Z9 with the world's first side fingerprint recognition when it released nubia Z9 in May this year. Edition, and the Sony Xperia Z5 was officially released at the IFA Consumer Electronics Show in Berlin in October this year, but why is the nubia Z9 Max Elite Edition mentioned in this article? Because so far nubia Z9 exclusive version has not been on sale, and now even five months later even nubia Z9 Max elite version has been open for pre-sale, and Z9 exclusive version is still invisible even shadow, and nubia official microblogging Did not make any representations, the only microblogging on the Z9 enjoyment version also wrote that May 6 officially opened the appointment .....

The side fingerprinting program was actually exposed. The company that provided the technical support was Synaptics , and Synaptics stated that the program is still in the R&D stage and that it will be produced in the third quarter of 2015 as soon as possible. The Z9 exclusive version will be 4,499 yuan. The price was released on the occasion that there was rumors that it was a futures mobile phone, and the facts proved that when the Z9 exclusive edition was not yet on sale, Sony's Xperia Z5 had been officially released and sold, but fortunately nubia was finally in front of it. A few days later the Z9 Max Elite, a side fingerprinting product that can be sold for sale, was officially launched today.

At last

We must admit that fingerprint identification is a very important security protection technology. Its popularity has increased the overall security level of smartphones by one level. As we said, whether it is front, back, or side, what kind of fingerprint recognition technology is their principle? And the application methods are all very similar. The front press type fingerprint recognition technology is more mature at present, and the speed is faster, and the back press type effect is not bad, but the area of ​​the fingerprint recognition module is larger, and the power key is Fingerprint sensor side fingerprint recognition together, theoretically no problem, but it put the module on the side of the fuselage, the thickness of the phone is not easy to control, and we also get information from internal staff, nubia side fingerprint Recognition technology was still flawed at the time Z9 Premium Edition was released, resulting in the Z9 exclusive version of the abortion. The Z9 Max Elite Edition was only officially launched today. We have reservations about the effectiveness of its side fingerprinting.