What Is Your Choice of Face Recognition Or Screen Fingerprint?

In recent years, almost most of the phenomena that can be publicly praised are basically related to the word "feelings". Once the "feelings" are taken as the starting point, there will always be a good result, just like the sentence "people who love to laugh will not have bad luck". Recently, at a new mobile phone conference attended by the author, the mobile phone that should give people a cold sense of technology struck a spark with the word "feelings". The cause of the matter is that the fingerprint on an athlete's finger has been polished due to long-term training. All those mobile phones equipped with physical fingerprint identification are equivalent to furnishings for him. Because of this, the mobile phone manufacturer has to add face recognition function to this kind of people regardless of cost to meet their needs.

What Is Your Choice of Face Recognition Or Screen Fingerprint? 1

However, in addition to face recognition, another new technology - screen fingerprint has also come to us recently. As an upgraded version of entity fingerprint recognition, although it does not seem to have anything to do with the word "feelings", before the emergence of face recognition devices, screen fingerprint was considered to be the best solution to solve the comprehensive screen mobile phone biometric technology. Now, when the screen fingerprint stands in front of us, it has undoubtedly basically met our illusions about the future. Therefore, the author believes that the screen fingerprint is also a technology with "feelings". So now the question is, as the two most popular biometric technologies, who do you stand in two completely different ways of use?

Entity fingerprint identification: subject to timeAt present, fingerprint identification technology includes entity fingerprint identification and screen fingerprint identification. Among them, entity fingerprint identification with quite mature technology even has a voice indicating that it will become a thing of the past. However, in terms of the current development of mobile phones, screen fingerprints will not appear on mass production models on a large scale due to cost and experience. Therefore, entity fingerprint identification is still an important role in discord or lack, and even its existence is still related to the word "feelings".I remember there is such a picture on the network that frontier soldiers need to wear masks to prevent frostbite in an environment of more than minus 40 degrees. Therefore, those devices with face recognition function are also furnishings for them. Therefore, for this kind of people, entity fingerprint identification with more mature technology still has its value. Now, there are many devices that retain physical fingerprint recognition while having face recognition function. Although they are full of "feelings", they are actually to cover up the embarrassment of insufficient security level of face recognition.

Recently, almost all the espionage photos of a number of unlisted full screen products have entity fingerprint identification keys, so entity fingerprint identification will still be one of the best biometric functions in a short time. If you want to ask when it will be replaced, it depends on the technology and cost of screen finger and face recognition technology and when it can be mass produced. Before that, physical fingerprint identification keys will still exist in a large number in the market.Screen fingerprint: subject to technologyThe advantages of screen fingerprint technology are obvious. In terms of appearance design, the screen fingerprint does not need to be placed on the back of the fuselage, which makes the full screen mobile phone ID design more complete and integrated. Moreover, when unlocking, the guiding graphic UI of screen fingerprint can also be made very cool.

At the same time, the front fingerprint is also more convenient to use than the back fingerprint, which is more in line with the user's operation habits and richer use scenarios. Reasonably speaking, the screen fingerprint should support multiple fingerprint input like the traditional entity fingerprint identification, which is more convenient than face recognition in which only one face information can be input. In addition, screen fingerprint will also be safer than facial recognition, and users can pay more safely. Of course, screen fingerprints are not without disadvantages. The main problem is that if there is too much oil on the user's fingers, it can't be unlocked for the current screen fingerprint technology.

What Is Your Choice of Face Recognition Or Screen Fingerprint? 2

It can be predicted that in 2018, the full screen mobile phone without screen fingerprint will be easier to attract people's attention than the mobile phone with physical fingerprint identification. It is understood that Samsung needs to wait until the second half of the year to mass produce products with screen fingerprints, not to mention other domestic manufacturers. During this time, for brands with screen fingerprint technology, the advantages are self-evident, and the only thing that can be compared with it is face recognition technology with high security level.

On the surface, there is little difference in experience between screen fingerprint and physical fingerprint. However, in the era of full screen, the presence or absence of screen fingerprint has a great impact on the appearance and experience of products. For consumers, screen fingerprint can bring them a perfect comprehensive screen experience. Not only that, starting with screen fingerprint, there will be greater changes in biosecurity identification in the future. At present, the mass-produced screen fingerprint equipment can only be identified in the fixed screen area, but from the "half screen" fingerprint identification technology of apex comprehensive screen concept machine released by vivo, the new experience of fingerprint identification at any position on the full screen will come sooner or later.

Face recognition: subject to costAt present, most devices with face recognition function basically adopt 2D face unlocking scheme, which means that the hardware configuration of these mobile phones is still based on traditional camera hardware technology and configuration. The 2D face unlocking scheme will face great security problems. For example, a news broke some time ago that Samsung's face recognition unlocking can also be unlocked with a user's photo. It can be seen that in terms of security, face recognition is not as reliable as fingerprint recognition with mature technology.

But then again, most of the domestic 2D face recognition is only applicable to the screen unlocking scheme, and there are security problems. The face recognition of iphonex is the application of physics, biology and bionics, and has involved face brushing payment, face brushing unlocking, artificial intelligence and so on. According to the supply chain, a face ID level 3D sensing system is quoted at $30 to $50. If the selling price of the mobile phone is less than $500, the cost pressure of purchasing this set of components is relatively large. In addition, placing 3D sensing elements in bangs will also increase the manufacturing cost of mobile phones, excluding the R & D cost of software adaptation.

Even if some mobile phone manufacturers finally successfully integrate it into the flagship, the price may not have many advantages for iPhone x, and it is difficult to surpass or even equal the use experience. Therefore, for most Android manufacturers, especially domestic brands, a more pragmatic choice is to wait until the price of 3D components falls in late 2018, but I'm afraid Apple will raise the use experience of face ID to a higher level. Therefore, at present, most of the comprehensive screen mobile phones designed with bangs wide chin, in which the gimmick of bangs is actually greater than the practical significance, while the fingerprint identification keys reserved on the chin or back still bear the important task of biometric security.

Of course, the cost for Apple almost doesn't need to be considered, which can be seen from the price of iPhone X. when users pay for it, we get bigger bangs than any Android device with bangs. The dot matrix projector on the fringe is one of the important modules of face ID. It can project more than 30000 light spots invisible to the naked eye, analyze them, draw accurate and detailed depth maps for the face, and process the user's face data in real time through an independent neural engine. Apple officials claim that the error rate of face ID is only one in a million, which is much lower than one in 50000 of touch ID. In this way, face recognition seems to be more advanced and secure than fingerprint recognition.

To sum up, for the mature entity fingerprint recognition, screen fingerprint and face recognition are still fledgling newcomers. Although they look cool, entity fingerprint still has its significance in the current market. However, for the future, screen fingerprints and face fingerprints to a higher level in human-computer interaction will replace physical fingerprints as a new biosafety technology. As for the situation of "two males competing, one will hurt", I don't think it will necessarily appear, because the word "feelings" has always been there, and there is no function most suitable for users, only the function more suitable for users.

GET IN TOUCH WITH Us
recommended articles
FAQ
Screen Fingerprint Identification Will Be Applied to LCD Screen, Not Just OLED
Screen Fingerprint Identification Will Be Applied to LCD Screen, Not Just OLED
Fingerprint identification on mobile phones has become an indispensable part of our daily life.Especially during the epidemic, face recognition is mostly paralyzed due to wearing masks, and fingerprint recognition has become the current optimal solution.Of course, if you use a mobile phone without fingerprint identification such as iPhone x, you have to find a way by yourself...9to5mac also gave a tutorial on using face ID with mask Screen fingerprint identification has become the mainstream, and the technology is also very mature. However, Tony saw a news while surfing the Internet today, saying that Tianma, a domestic LCD and LCM design company, released the world's first LCD Screen multi-point fingerprint identification scheme (Ted finger print, referred to as TFP).The strength of this scheme is that the off-screen fingerprint identification mobile phones we use now are basically OLED screens, while the LCD screen basically has no on-screen fingerprint identification...One plus 6T off screen fingerprint identification diagram As we all know, the screen fingerprint unlocking needs the illumination of the light source for fingerprint identification, but the LCD screen is relatively thick and has poor light transmittance; Second, the LCD screen cannot emit light actively, and the backlight will interfere with the identification of optical fingerprints.These two problems make LCD basically bid farewell to screen fingerprint recognition.Therefore, mobile phones with LCD screen basically adopt side fingerprint identification, and some will be combined with the power key on the side of the mobile phone.But OLED screens don't have this problem. Because the OLED screen is thinner and more transparent, it is natural to use fingerprints on and off the screen.Then why do manufacturers not directly on the OLED screen, but want to operate madly on the LCD screen? The reason is also simple: because LCD screens are cheap...Although Lu Weibing, vice president of Xiaomi, said publicly some time ago that Hongmi team successfully realized fingerprint recognition under LCD screen on a redmi note8 Pro prototype, so far, no manufacturer has officially announced this technology, and Tianma is the first.So Tony was surprised when he saw the news. This fingerprint identification scheme can be said to break through the two obstacles of current screen fingerprint identification technology - LCD screen and identification area.If the multi-point fingerprint identification in the LCD screen can achieve mass production, it means that the LCD screen can also use fingerprint identification!Another point is the identification area of off screen fingerprint identification.So far, the identification area of screen fingerprint is basically fixed, almost at the lower position of the screen. People will subconsciously put their fingers at the approximate position when unlocking the mobile phone.But no one can guarantee that every time the finger is pressed on the fingerprint identification area, because the identification area is so large, it is inevitable that there will be deviations...The scheme announced by Tianma this time shows that it can make the whole LCD screen recognize fingerprints!Tony mended his brain, that is, I could identify my fingerprint and unlock my mobile phone by placing my finger anywhere on the screen.If this multi-point fingerprint identification technology can be mass produced, the efficiency of unlocking the screen will be much higher than now. You don't have to find the identification area and poke it on the screen.It can be said that Tianma's operation directly makes the LCD screen ride on the head of OLED in fingerprint identification. Once LCD screens didn't even deserve fingerprint identification. Now they not only have fingerprint identification, but also can identify 5 at a time...As for why the multi-point fingerprint solution in the TFP screen can realize these functions, high integration has played a great role.In short, it is to integrate touch, display and fingerprint identification, replace the previous design of fingerprint identification module and reduce the thickness of the screen, so that the screen fingerprint identification is feasible on the LCD.At the same time, in order to realize fingerprint identification on the whole screen, Tianma covers the whole screen with optical path and sensors.As for how multi-point fingerprint identification can play new tricks, it still depends on the subsequent operations of manufacturers.As for the fate of LCD screen after mass production of this scheme, we still don't know, but before that, LCD screen has never been the first choice for mobile phone manufacturers.After all, the OLED screen is thinner, can emit light by itself, and the color is more bright. The experience is much better than that of LCD, but there are still problems of stroboscopic and screen burning, and the price is relatively expensive.When it comes to the LCD screen, the advantages and disadvantages are reversed...The price of iPhone 11 with LCD screen is lower For most users, OLED screen is their first choice, but there are still a group of people who stick to the LCD screen.In addition to having a larger viewing angle, another reason is that they can't accept the strobe of OLED screen. They think it's really hurting their eyes...Therefore, once the TFP scheme realizes mass production, the defect that the LCD screen has no off screen fingerprint will be supplemented. If the price can be controlled well, the current situation of the screen in the mobile phone market may change a lot.However, before that, the mobile phone market was still dominated by OLED screens, not to mention the suoper AMOLED screens such as Samsung. The evolution of LCD screens has a long way to go...
What Are the Differences Between the Early Screen Fingerprint and the Latest Screen Fingerprint Scheme
What Are the Differences Between the Early Screen Fingerprint and the Latest Screen Fingerprint Scheme
In early 2017, huiding technology demonstrated the case of off-screen fingerprint identification through two modified mobile phones, Samsung Galaxy S7 edge and vivo xplay6. This fingerprint identification technology without opening a hole on the screen has attracted the attention of countless players.From "high and low" at the beginning of 2018 to the end of 2018, oppo will enter the K1 supporting screen fingerprint into the popular price of 1599 yuan. This "black technology" is destined to become the "standard" in the field of medium and high-end smart phones in 2019.So what are the differences between the early screen fingerprint and the latest screen fingerprint scheme? Why are new products armed with this technology getting cheaper and cheaper, while the accuracy of fingerprint identification has been improved?Development history of screen fingerprint technologyFrom the technical level, screen fingerprint identification can be derived into two categories: "optical" (also known as "photoelectric") and "ultrasonic".Unfortunately, the ultrasonic screen fingerprint scheme has just been trial installed by Samsung Galaxy S10 series (the feedback from netizens' actual experience is mostly slow and low recognition rate). The screen fingerprint from 2018 to early 2019 is still the world of optical screen fingerprint scheme.Theoretically, the optical screen fingerprint technology can be infinitely close to the traditional capacitive fingerprint identification technology in terms of recognition rate and unlocking speed. Taking the latest off screen optical fingerprint module (CMOS scheme) of huiding technology as an example, it is applicable to both OLED soft screen and OLED hard screen (ultrasonic scheme can not be used for hard screen), and has created a separate design, so that the optical fingerprint module no longer needs to be attached to the OLED screen (ultrasonic scheme needs to be attached to the screen), which greatly reduces the commercial difficulty, It effectively reduces the hidden cost and risk cost of production.Therefore, optics has a greater cost advantage than ultrasound. Screen separation can effectively reduce the production cost, and it adopts a fully mature industrial chain.Optical screen fingerprint technology needs light emitting and sensing devices. Theoretically, TFT (LCD) and OLED screens can be used as light sources. However, the TFT screen is passively illuminated, and the LED backlight at the bottom needs to pass through the TFT panel to display. If you want to realize the screen fingerprint identification technology in the TFT screen, you need to perform a "major operation" on the whole module, and the cost is very high. In contrast, OLED can accurately control each sub-pixel because of its ultra-thin and self luminous characteristics.The general principle of screen fingerprint is that when the user slightly presses the screen with his finger, the RGB pixel of the OLED screen will emit light and illuminate the fingerprint texture through the small hole of the OLED screen to the screen surface. Because different lines of fingers lead to different reflected light, the light reaching the fingerprint reflects through the screen and then reaches the fingerprint sensor. Finally, the fingerprint sensor can form a fingerprint image according to the reflected light.Take vivo as an example. As early as January 2018, vivo X20 plus, the world's first screen fingerprint identification mobile phone, was mass produced. Then X21, nex, x23, nex dual screen version and x27 were armed with the second, third, fourth, fifth and sixth generation photoelectric screen fingerprint technology respectively.In fact, the iterative update of optical screen fingerprint identification technology is not so fast. In essence, it has just experienced two generations of innovation.First generation: off screen fingerprint sensor schemeThe first generation of screen fingerprint is also known as the "collimator scheme". For early mobile phones that supported screen fingerprint identification, such as vivo X20 plus, X21, Xiaomi 8 exploration version, Huawei mate RS off screen fingerprint version and Meizu 16th, they all embedded fingerprint identification sensors under the OLED screen to collect light imaging from the small holes of the OLED screen through the micro lens, so as to realize the identification of fingerprint information.Considering that the pixel arrangement of OLED may produce moire marks, which may affect the recognition, most of the fingerprint sensors of this kind of mobile phones use the method of tilting a certain angle to eliminate the moire marks.In order to get a clear fingerprint image, the "collimator scheme" also needs to add a "collimating layer" between the sensor and the OLED screen to filter out the refracted and scattered light and ensure that the light reaching the photosensitive element is collimated light. In addition, based on the collimation layer scheme, a "small hole imaging scheme" is derived, which can further reduce the module thickness and cost, and make the fingerprint image reaching the light sensor clearer.Unfortunately, the off-screen fingerprint sensor scheme is not perfect. Firstly, the module of this scheme must fit closely with the OLED screen, which is difficult to process and has the problem of yield. Secondly, the cost of the scheme is directly proportional to the effective fingerprint identification area. The larger the area used to collect fingerprints, the higher the cost.The fingerprint sensor can be seen whether the screen is off or onIn addition, in order for the sensor hidden under the screen to receive the light penetrating the screen to the greatest extent, it is necessary to improve the light transmittance of the screen. Therefore, all mobile phones adopting the "collimator scheme" have a common problem - the screen can vaguely see the outline of the fingerprint sensor in strong light, which greatly affects the view.Second generation: off screen camera sensor schemeStarting from vivo nex, most of the new products represented by oppo R17 and K1 adopt the second-generation screen fingerprint identification technology. They replace the fingerprint identification sensor hidden in the screen with a special camera module (composed of fingerprint chip and ultra short focus CMOS)Fish eye camera, light sensor, nor flash and filter are also called "CMOS scheme", which essentially completes fingerprint acquisition and comparison through "off screen camera".Compared with the first generation "collimator scheme", the module of "CMOS scheme" does not need to be combined with OLED screen. It can be fixed on the frame, and the process difficulty and cost are greatly reduced. In addition, the scheme does not need to consider the problem of collimating hole. It can further improve the imaging quality by improving the pixels of the camera. It is also difficult to see the fingerprint module (lens) in the screen under strong light.In early 2018, the rejection rate of the "collimator scheme" was 7% 8%, but now the "CMOS scheme" has been reduced to 2%, and the unlocking speed has been reduced from 1 second to 0.24 seconds.In terms of price, the cost of screen fingerprint chip during the "collimator scheme" period is about $8 to $9, and the cost of additional modules is about $7 to $9. The total cost of the whole scheme is as high as $15 to $18, that is, about 103 to 123 yuan. Today, the screen fingerprint chip of "CMOS scheme" has been reduced to $6, and the module cost is only $2. The cost of about 55 yuan has laid a foundation for it to become the standard configuration of mainstream price mobile phones (more than 1500 yuan)."CMOS solution" also has a killer advantage - since its main body is the camera, camera related technologies can be introduced to further improve the imaging quality and recognition efficiency.As a representative of the first batch of mobile phones adopting the "CMOS scheme", vivo nex has added a large number of photography derived technologies such as multi frame synthesis, distortion processing, stability judgment and scratch detection, as well as algorithm optimization for fingerprint images such as feature extraction optimization, dynamic base adaptation, mask mechanism and DPI adaptation.At the x23, vivo, in conjunction with Qualcomm, conducted in-depth optimization at the SOC level, launched the "screen fingerprint DSP acceleration technology", and handed over the fingerprint image enhancement and contrast recognition originally undertaken by the CPU to hexagon DSP, which greatly improved the efficiency and significantly reduced the power consumption.At the same time, x23 also increased the image density of the fingerprint camera under the screen to 750ppi and the aperture to f / 1.5. Through the later OTA System update, it can further optimize the algorithms such as first frame acceleration, HBM synchronization, water ripple elimination, mask preloading and removal, so that the fingerprint unlocking speed of x23 is further improved from 0.35 seconds at the beginning of release to 0.24 seconds!The vivo nex dual screen version launched last year adopted the "fifth generation photoelectric screen fingerprint", which upgraded the 2p lens to 3P lens, opened a fingerprint processing area on the SOC (CPU), and made another breakthrough in the bright screen unlocking speed combined with DSP level optimization. In short, "CMOS solution" has the characteristics of lower cost of ownership and continuous optimization and upgrading through similar camera algorithms. It has become the most popular optical screen fingerprint solution for new mobile phones.Vivo x27 screen fingerprint recognition demonstrationThe newly launched vivo x27 adopts the "sixth generation screen fingerprint HD version", which is characterized by doubling the sensing area of the module sensor. Compared with the previous generation of screen fingerprint technology, the detected finger area is increased by 27%, and the acquired image semaphore and dynamic range are also increased by 30%. Moreover, the larger sensing module makes the sixth generation screen fingerprint perform well in special scenes. For example, in the case of dry fingers and low temperature environment, its recognition efficiency has also been improved by nearly 50%.
Off Screen Fingerprint Technology Is Not Popular Because of These Two Technologies
Off Screen Fingerprint Technology Is Not Popular Because of These Two Technologies
According to the Android central website, developing the technology of embedding fingerprint sensor into smartphone display has always been regarded as the highest goal in the field of smartphone biometrics. As smart phone manufacturers continue to move towards the goal of "comprehensive screen" design, off screen fingerprint technology provides another way to further improve the extremely important index - screen proportion.Off screen fingerprints also provide an advantage of the future model - in the market where mobile phone design is becoming more and more homogeneous and basically become a glass brick, this is an urgent differentiated competitive advantage.Therefore, it is not surprising that this emerging technology suddenly appears in the supply chain rumors about future mobile phones, especially apple and Samsung, the two largest mobile phone manufacturers. There were rumors a few years ago that Samsung would launch Galaxy series smartphones with fingerprint sensors embedded in the display screen. In fact, Samsung's current key design, a clickable virtual home key with pressure sensing function, seems to be designed around the concept of off screen fingerprint.But so far, in addition to several concept devices released by Chinese manufacturers, off-screen fingerprint technology has not been really applied to mobile phones.This is why when evaluating the design of Huawei mate RS Porsche, what I am most interested in about this $2000 (about 12735 yuan) mobile phone is that a company has finally released a mobile phone using off-screen fingerprint technology. The off screen fingerprint technology designed by Huawei mate RS Porsche is called "on screen fingerprint".But after a few minutes of using this feature, my enthusiasm dissipated. The process of registering fingerprints in the off-screen fingerprint sensor made me fully understand that this new fingerprint sensor is unacceptably slow compared with the common power plant sensors in flagship mobile phones in the past few years. In the past few product cycles, the "swish" speed of smartphone fingerprint sensor spoiled us.We have no reason to doubt that Huawei has suddenly launched a flagship mobile phone with a price of up to $2600 (about 16555 yuan). Huawei will certainly try its best to configure the best components for this mobile phone, but these components are very slow.Android central said that there are still some practical problems with off-screen fingerprint technology. As an optical sensor is used, it must actually "see" the fingerprint before scanning the fingerprint. Therefore, when the user unlocks the mobile phone with his finger, the area around the key must have a certain brightness. It's no problem in broad daylight, but in a dark bar or bedroom? Its performance is problematic.In 2018, off screen fingerprint will still be a demonstration technology: although it works, it is slow and unreliable.Especially on mate RS, it takes some time to find and press the fingerprint sensor under the screen (like the fingerprint sensor "sees" the fingerprint plane image, the current optical sensor needs pressure to function normally).Since the fingerprint sensor is located about a quarter above the display screen, it is not easy to find it by touch alone - because the fingerprint sensor itself is embedded in the display screen, the user can't feel its position. In addition, the fingerprint sensor embedded in the display screen can not provide vibration feedback to guide users to find it. Users need to stare at the phone and find the fingerprint sensor.After a complex process, many users will find that it is better to use Huawei's excellent face unlocking function, which is not only faster, but also more reliable.Even after registering four fingerprints on mate RS, I encountered more small problems than using traditional fingerprint sensors in the past three years. In some cases, you can't unlock the phone by constantly changing the location of the phone.Therefore, I think that the optical fingerprint sensor is more vulnerable to the stains on the display screen, or because of my fingertips, or temperature changes, or other factors that need to be paid attention to in daily life. These may not be a problem when unlocking a mobile phone using a traditional fingerprint sensor.It is troublesome to use, and even if it can barely be used, the speed is unbearably slow. It is worth noting that Huawei also provides two other excellent unlocking methods in mate RS - face unlocking and fingerprint sensor on the back of the fuselage, because it will be crazy to unlock the mobile phone by using off-screen fingerprint alone.Of course, with a starting price of $2000, Huawei and Porsche have sufficient budget room to integrate so many parts into this mobile phone. Mate RS itself is not a popular product, and the sales volume will not be large. I can't imagine that Samsung will use an off-screen fingerprint sensor in a mobile phone with a price equivalent to that of a traditional flagship mobile phone and a sales volume of tens of millions, and use a capacitive fingerprint sensor on the back of the fuselage.Android central said that in fact, almost all major flagship mobile phones have decided (or realized that the off-screen fingerprint technology is immature) to adopt the tested and mature capacitive fingerprint sensor technology, while waiting for the maturity of the off-screen fingerprint technology.To sum up, it is difficult for us not to draw such a conclusion. Even if it is not equipped with a special infrared laser array like apple face ID, the development speed of smartphone face unlocking technology is much faster than that of off screen fingerprint.The demand for off screen fingerprint will not ebb in the short term, but the off screen fingerprint technology used in mobile phones is not mature enough to become the core part of modern smart phones. In the next two years, the speed and accuracy of fingerprint sensors in smart phones will be further improved.
Off Screen Fingerprint Technology Is Not Popular Because of These Two Technologies
Off Screen Fingerprint Technology Is Not Popular Because of These Two Technologies
According to the Android central website, developing the technology of embedding fingerprint sensor into smartphone display has always been regarded as the highest goal in the field of smartphone biometrics. As smart phone manufacturers continue to move towards the goal of "comprehensive screen" design, off screen fingerprint technology provides another way to further improve the extremely important index - screen proportion.Off screen fingerprints also provide an advantage of the future model - in the market where mobile phone design is becoming more and more homogeneous and basically become a glass brick, this is an urgent differentiated competitive advantage.Therefore, it is not surprising that this emerging technology suddenly appears in the supply chain rumors about future mobile phones, especially apple and Samsung, the two largest mobile phone manufacturers. There were rumors a few years ago that Samsung would launch Galaxy series smartphones with fingerprint sensors embedded in the display screen. In fact, Samsung's current key design, a clickable virtual home key with pressure sensing function, seems to be designed around the concept of off screen fingerprint.But so far, in addition to several concept devices released by Chinese manufacturers, off-screen fingerprint technology has not been really applied to mobile phones.This is why when evaluating the design of Huawei mate RS Porsche, what I am most interested in about this $2000 (about 12735 yuan) mobile phone is that a company has finally released a mobile phone using off-screen fingerprint technology. The off screen fingerprint technology designed by Huawei mate RS Porsche is called "on screen fingerprint".But after a few minutes of using this feature, my enthusiasm dissipated. The process of registering fingerprints in the off-screen fingerprint sensor made me fully understand that this new fingerprint sensor is unacceptably slow compared with the common power plant sensors in flagship mobile phones in the past few years. In the past few product cycles, the "swish" speed of smartphone fingerprint sensor spoiled us.We have no reason to doubt that Huawei has suddenly launched a flagship mobile phone with a price of up to $2600 (about 16555 yuan). Huawei will certainly try its best to configure the best components for this mobile phone, but these components are very slow.Android central said that there are still some practical problems with off-screen fingerprint technology. As an optical sensor is used, it must actually "see" the fingerprint before scanning the fingerprint. Therefore, when the user unlocks the mobile phone with his finger, the area around the key must have a certain brightness. It's no problem in broad daylight, but in a dark bar or bedroom? Its performance is problematic.In 2018, off screen fingerprint will still be a demonstration technology: although it works, it is slow and unreliable.Especially on mate RS, it takes some time to find and press the fingerprint sensor under the screen (like the fingerprint sensor "sees" the fingerprint plane image, the current optical sensor needs pressure to function normally).Since the fingerprint sensor is located about a quarter above the display screen, it is not easy to find it by touch alone - because the fingerprint sensor itself is embedded in the display screen, the user can't feel its position. In addition, the fingerprint sensor embedded in the display screen can not provide vibration feedback to guide users to find it. Users need to stare at the phone and find the fingerprint sensor.After a complex process, many users will find that it is better to use Huawei's excellent face unlocking function, which is not only faster, but also more reliable.Even after registering four fingerprints on mate RS, I encountered more small problems than using traditional fingerprint sensors in the past three years. In some cases, you can't unlock the phone by constantly changing the location of the phone.Therefore, I think that the optical fingerprint sensor is more vulnerable to the stains on the display screen, or because of my fingertips, or temperature changes, or other factors that need to be paid attention to in daily life. These may not be a problem when unlocking a mobile phone using a traditional fingerprint sensor.It is troublesome to use, and even if it can barely be used, the speed is unbearably slow. It is worth noting that Huawei also provides two other excellent unlocking methods in mate RS - face unlocking and fingerprint sensor on the back of the fuselage, because it will be crazy to unlock the mobile phone by using off-screen fingerprint alone.Of course, with a starting price of $2000, Huawei and Porsche have sufficient budget room to integrate so many parts into this mobile phone. Mate RS itself is not a popular product, and the sales volume will not be large. I can't imagine that Samsung will use an off-screen fingerprint sensor in a mobile phone with a price equivalent to that of a traditional flagship mobile phone and a sales volume of tens of millions, and use a capacitive fingerprint sensor on the back of the fuselage.Android central said that in fact, almost all major flagship mobile phones have decided (or realized that the off-screen fingerprint technology is immature) to adopt the tested and mature capacitive fingerprint sensor technology, while waiting for the maturity of the off-screen fingerprint technology.To sum up, it is difficult for us not to draw such a conclusion. Even if it is not equipped with a special infrared laser array like apple face ID, the development speed of smartphone face unlocking technology is much faster than that of off screen fingerprint.The demand for off screen fingerprint will not ebb in the short term, but the off screen fingerprint technology used in mobile phones is not mature enough to become the core part of modern smart phones. In the next two years, the speed and accuracy of fingerprint sensors in smart phones will be further improved.
Will the LCD Screen Be Equipped with Off-screen Fingerprint Identification Technology?
Will the LCD Screen Be Equipped with Off-screen Fingerprint Identification Technology?
Payment app fingerprint security authentication, joint account withdrawal encryption fingerprint authentication... Many fingerprint identification behaviors are expected to be realized in a way of higher security and convenience through under LCD screen (internal) fingerprint identification technology.Due to the opaque characteristics of LCD screen, it is difficult to realize this technology. Nevertheless, many panel and mobile phone manufacturers have challenged LCD off screen fingerprint technology, which is evolving towards high integration, full screen fingerprint multipoint identification and high screen share.Evolution from "off screen" to "on screen"At present, the off-screen fingerprint identification technology applied to OLED mobile phones has been very mature. Due to the high cost, the selling price of mobile phones is generally high. Although the cost of LCD screen is low, the LCD screen itself cannot transmit light, so it is difficult to realize the fingerprint technology under the LCD screen. Nevertheless, in recent years, many panel and mobile phone manufacturers have challenged the fingerprint technology under the LCD screen and achieved certain results.In May 2019, AU Optronics displayed a full screen optical fingerprint identification LCD screen.In June 2019, BOE revealed that the optical fingerprint sensing technology under LCD screen has been successfully developed. In August 2019, Huawei glory demonstrated the LCD mobile phone prototype equipped with off-screen fingerprint unlocking. It is reported that this prototype is the result of joint development between glory and BOE.In March 2020, Lu Weibing, vice president of Xiaomi group and general manager of Hongmi brand, announced that Hongmi team had overcome the problem of screen fingerprint, realized screen fingerprint on LCD screen and had mass production.In June 2020, TCL Huaxing announced that it had developed fixed single point on-screen fingerprint technology. It is expected to launch full screen single point on-screen fingerprint technology this year and Full Screen multi-point on-screen fingerprint technology in 2021.In July 2020, the world's first LCD on-screen multi-point fingerprint solution (Ted finger print) developed by Tianma was officially released. The scheme embeds the fingerprint image collector in the TFT display substrate, realizing the integration of touch, display and fingerprint identification.What is the evolution process from "off screen" to "on screen"?It is understood that the development of off screen fingerprint is mainly divided into off screen fingerprint (fixed single point), on-screen fingerprint (full screen single point), on-screen fingerprint (Full Screen multi-point Ted embedded), etc. Off screen fingerprint identification includes capacitive, optical and ultrasonic types. However, due to technology and cost, most of the products equipped with this technology can only realize single point fingerprint identification in a fixed area. Now, the latest R & D achievement - on-screen multi-point fingerprint solution adopts the optical fingerprint identification mode, integrates the fingerprint image collector into the display screen, and can realize "Full Screen multi-point" fingerprint identification on the full screen, which has a larger screen identification area than off screen fingerprint products.Integration and multipoint recognition become the direction of attack"The future development direction of on-screen multi-point fingerprint solution must be high integration, full screen fingerprint multi-point identification and high screen proportion." Wu Zhen, director of marketing department of Tianma Microelectronics Co., Ltd., said in an interview with China Electronics News.Specifically, the first is high integration. It is mainly to realize the three in one of touch, display and fingerprint identification. It is necessary to break through the limitation that the optical fingerprint in the LCD screen is difficult to match the thickness of the normal cover plate, so as to have more market competitiveness and mass production; At the same time, because the optical path modulation unit is integrated in the display screen, the thickness of the display screen is reduced by more than 50% compared with the external collimating optical path design scheme, making the design of terminal products lighter and thinner. The second is full screen fingerprint multipoint identification. To support full Screen multi-point fingerprint identification in any display area, it can be applied to full screen blind unlocking, APP encryption unlocking and user-defined fingerprint control to achieve high security and high privacy. The third is the proportion of high screen. The fingerprint identification function is built into the display screen to effectively improve the screen proportion of terminal products and bring users a more ultimate visual experience.In addition, the development and improvement of fingerprint under (in) LCD screen is inseparable from the dimensions of high brightness, high fingerprint recognition rate and improvement of unlocking experience. High brightness requires the brightness of the module to be more than 450 nits. To ensure that more image details are displayed, it can effectively solve the problem of serious brightness loss and bring a smooth viewing and game experience; The ultra-high fingerprint recognition rate refers to the FRR of 3%, which can reach the OLED level; in terms of unlocking experience, the use of unlocking or consumption functions is more intuitive, avoiding accidental touch, simplifying the buttons of mobile phone accessories and improving the overall beauty.It is understood that in the process of tackling the key problems of LCD off screen fingerprint technology, TCL Huaxing has solved the problems such as the development of Blu films, the improvement of TPM brightness and the improvement of infrared sensor recognition accuracy through continuous transformation and attempt of LCD backlight. Finally, TCL Huaxing has launched the LCD panel off screen fingerprint that can clearly see the fingerprint image, and realized the rapid identification function of LCD off screen fingerprint.Optimize cost and find the way of differentiated competitionThe advantage of fingerprint in LCD screen is that it can do large-area and multi fingerprint identification, and can improve the diversified space of human-computer interaction experience of intelligent terminal. For example, it can deeply encrypt app, ensure wealth security and improve vehicle driving experience; it can also provide higher-level guarantee for the information security of smart factory, smart city, smart home, smart transportation and intelligent medical treatment.According to Wu Zhen, in the future, the fingerprint on the LCD screen can encrypt any app. When users click the app icon, they need to complete fingerprint verification before they can further open and run the app. Compared with the encryption method that the existing mobile phone app needs to press the finger at the specified position for fingerprint verification, it is more convenient. The fingerprint on the LCD screen can even realize that when using a joint account on the ATM, two people need to use it at the same time The operation function of transfer can only be realized by inputting fingerprint.Since the release of full screen optical fingerprint identification LCD screen by Youda optoelectronics, Tianma's latest LCD multi touch in screen fingerprint scheme has met the conditions for mass production, and is sending samples to terminals of world-famous brands. The off screen (in) fingerprint scheme has been launched for a long time, but it has not been commercialized on a large scale. What step has the overall off screen fingerprint taken in the process of mass production application?Liu Yushi, senior analyst of cinno research, said in an interview that the under screen (inner) fingerprint of LCD has been opened up technically. Compared with the rigid OLED with optical under screen fingerprint, it has no advantage in mass production cost, so there is little practical application at present. At present, the under screen (inner) fingerprint of LCD is actively optimizing the cost and looking for a way to compete with the off screen fingerprint of OLED.Xu Jingjing, senior analyst of semiconductor device research at sigaintell, said in an interview with China Electronics News that the fingerprint scheme under the LCD screen (inside) is still in the research and development stage. From the perspective of application field, compared with mobile phone terminals, it is expected to be promoted in the vehicle display and door lock Market in the future, and mass production is expected to be realized in the second half of 2021.One of the evolution trends of touch display is to help the touch display module continuously add value by adding more functions from the device structure level. Although the latest LCD on-screen fingerprint solution still has some details to be optimized, the release of this technology has revived the confidence of practitioners in LCD fingerprint solution.
Will the LCD Screen Be Equipped with Off-screen Fingerprint Identification Technology?
Will the LCD Screen Be Equipped with Off-screen Fingerprint Identification Technology?
Payment app fingerprint security authentication, joint account withdrawal encryption fingerprint authentication... Many fingerprint identification behaviors are expected to be realized in a way of higher security and convenience through under LCD screen (internal) fingerprint identification technology.Due to the opaque characteristics of LCD screen, it is difficult to realize this technology. Nevertheless, many panel and mobile phone manufacturers have challenged LCD off screen fingerprint technology, which is evolving towards high integration, full screen fingerprint multipoint identification and high screen share.Evolution from "off screen" to "on screen"At present, the off-screen fingerprint identification technology applied to OLED mobile phones has been very mature. Due to the high cost, the selling price of mobile phones is generally high. Although the cost of LCD screen is low, the LCD screen itself cannot transmit light, so it is difficult to realize the fingerprint technology under the LCD screen. Nevertheless, in recent years, many panel and mobile phone manufacturers have challenged the fingerprint technology under the LCD screen and achieved certain results.In May 2019, AU Optronics displayed a full screen optical fingerprint identification LCD screen.In June 2019, BOE revealed that the optical fingerprint sensing technology under LCD screen has been successfully developed. In August 2019, Huawei glory demonstrated the LCD mobile phone prototype equipped with off-screen fingerprint unlocking. It is reported that this prototype is the result of joint development between glory and BOE.In March 2020, Lu Weibing, vice president of Xiaomi group and general manager of Hongmi brand, announced that Hongmi team had overcome the problem of screen fingerprint, realized screen fingerprint on LCD screen and had mass production.In June 2020, TCL Huaxing announced that it had developed fixed single point on-screen fingerprint technology. It is expected to launch full screen single point on-screen fingerprint technology this year and Full Screen multi-point on-screen fingerprint technology in 2021.In July 2020, the world's first LCD on-screen multi-point fingerprint solution (Ted finger print) developed by Tianma was officially released. The scheme embeds the fingerprint image collector in the TFT display substrate, realizing the integration of touch, display and fingerprint identification.What is the evolution process from "off screen" to "on screen"?It is understood that the development of off screen fingerprint is mainly divided into off screen fingerprint (fixed single point), on-screen fingerprint (full screen single point), on-screen fingerprint (Full Screen multi-point Ted embedded), etc. Off screen fingerprint identification includes capacitive, optical and ultrasonic types. However, due to technology and cost, most of the products equipped with this technology can only realize single point fingerprint identification in a fixed area. Now, the latest R & D achievement - on-screen multi-point fingerprint solution adopts the optical fingerprint identification mode, integrates the fingerprint image collector into the display screen, and can realize "Full Screen multi-point" fingerprint identification on the full screen, which has a larger screen identification area than off screen fingerprint products.Integration and multipoint recognition become the direction of attack"The future development direction of on-screen multi-point fingerprint solution must be high integration, full screen fingerprint multi-point identification and high screen proportion." Wu Zhen, director of marketing department of Tianma Microelectronics Co., Ltd., said in an interview with China Electronics News.Specifically, the first is high integration. It is mainly to realize the three in one of touch, display and fingerprint identification. It is necessary to break through the limitation that the optical fingerprint in the LCD screen is difficult to match the thickness of the normal cover plate, so as to have more market competitiveness and mass production; At the same time, because the optical path modulation unit is integrated in the display screen, the thickness of the display screen is reduced by more than 50% compared with the external collimating optical path design scheme, making the design of terminal products lighter and thinner. The second is full screen fingerprint multipoint identification. To support full Screen multi-point fingerprint identification in any display area, it can be applied to full screen blind unlocking, APP encryption unlocking and user-defined fingerprint control to achieve high security and high privacy. The third is the proportion of high screen. The fingerprint identification function is built into the display screen to effectively improve the screen proportion of terminal products and bring users a more ultimate visual experience.In addition, the development and improvement of fingerprint under (in) LCD screen is inseparable from the dimensions of high brightness, high fingerprint recognition rate and improvement of unlocking experience. High brightness requires the brightness of the module to be more than 450 nits. To ensure that more image details are displayed, it can effectively solve the problem of serious brightness loss and bring a smooth viewing and game experience; The ultra-high fingerprint recognition rate refers to the FRR of 3%, which can reach the OLED level; in terms of unlocking experience, the use of unlocking or consumption functions is more intuitive, avoiding accidental touch, simplifying the buttons of mobile phone accessories and improving the overall beauty.It is understood that in the process of tackling the key problems of LCD off screen fingerprint technology, TCL Huaxing has solved the problems such as the development of Blu films, the improvement of TPM brightness and the improvement of infrared sensor recognition accuracy through continuous transformation and attempt of LCD backlight. Finally, TCL Huaxing has launched the LCD panel off screen fingerprint that can clearly see the fingerprint image, and realized the rapid identification function of LCD off screen fingerprint.Optimize cost and find the way of differentiated competitionThe advantage of fingerprint in LCD screen is that it can do large-area and multi fingerprint identification, and can improve the diversified space of human-computer interaction experience of intelligent terminal. For example, it can deeply encrypt app, ensure wealth security and improve vehicle driving experience; it can also provide higher-level guarantee for the information security of smart factory, smart city, smart home, smart transportation and intelligent medical treatment.According to Wu Zhen, in the future, the fingerprint on the LCD screen can encrypt any app. When users click the app icon, they need to complete fingerprint verification before they can further open and run the app. Compared with the encryption method that the existing mobile phone app needs to press the finger at the specified position for fingerprint verification, it is more convenient. The fingerprint on the LCD screen can even realize that when using a joint account on the ATM, two people need to use it at the same time The operation function of transfer can only be realized by inputting fingerprint.Since the release of full screen optical fingerprint identification LCD screen by Youda optoelectronics, Tianma's latest LCD multi touch in screen fingerprint scheme has met the conditions for mass production, and is sending samples to terminals of world-famous brands. The off screen (in) fingerprint scheme has been launched for a long time, but it has not been commercialized on a large scale. What step has the overall off screen fingerprint taken in the process of mass production application?Liu Yushi, senior analyst of cinno research, said in an interview that the under screen (inner) fingerprint of LCD has been opened up technically. Compared with the rigid OLED with optical under screen fingerprint, it has no advantage in mass production cost, so there is little practical application at present. At present, the under screen (inner) fingerprint of LCD is actively optimizing the cost and looking for a way to compete with the off screen fingerprint of OLED.Xu Jingjing, senior analyst of semiconductor device research at sigaintell, said in an interview with China Electronics News that the fingerprint scheme under the LCD screen (inside) is still in the research and development stage. From the perspective of application field, compared with mobile phone terminals, it is expected to be promoted in the vehicle display and door lock Market in the future, and mass production is expected to be realized in the second half of 2021.One of the evolution trends of touch display is to help the touch display module continuously add value by adding more functions from the device structure level. Although the latest LCD on-screen fingerprint solution still has some details to be optimized, the release of this technology has revived the confidence of practitioners in LCD fingerprint solution.
Will the LCD Screen Be Equipped with Off-screen Fingerprint Identification Technology?
Will the LCD Screen Be Equipped with Off-screen Fingerprint Identification Technology?
Payment app fingerprint security authentication, joint account withdrawal encryption fingerprint authentication... Many fingerprint identification behaviors are expected to be realized in a way of higher security and convenience through under LCD screen (internal) fingerprint identification technology.Due to the opaque characteristics of LCD screen, it is difficult to realize this technology. Nevertheless, many panel and mobile phone manufacturers have challenged LCD off screen fingerprint technology, which is evolving towards high integration, full screen fingerprint multipoint identification and high screen share.Evolution from "off screen" to "on screen"At present, the off-screen fingerprint identification technology applied to OLED mobile phones has been very mature. Due to the high cost, the selling price of mobile phones is generally high. Although the cost of LCD screen is low, the LCD screen itself cannot transmit light, so it is difficult to realize the fingerprint technology under the LCD screen. Nevertheless, in recent years, many panel and mobile phone manufacturers have challenged the fingerprint technology under the LCD screen and achieved certain results.In May 2019, AU Optronics displayed a full screen optical fingerprint identification LCD screen.In June 2019, BOE revealed that the optical fingerprint sensing technology under LCD screen has been successfully developed. In August 2019, Huawei glory demonstrated the LCD mobile phone prototype equipped with off-screen fingerprint unlocking. It is reported that this prototype is the result of joint development between glory and BOE.In March 2020, Lu Weibing, vice president of Xiaomi group and general manager of Hongmi brand, announced that Hongmi team had overcome the problem of screen fingerprint, realized screen fingerprint on LCD screen and had mass production.In June 2020, TCL Huaxing announced that it had developed fixed single point on-screen fingerprint technology. It is expected to launch full screen single point on-screen fingerprint technology this year and Full Screen multi-point on-screen fingerprint technology in 2021.In July 2020, the world's first LCD on-screen multi-point fingerprint solution (Ted finger print) developed by Tianma was officially released. The scheme embeds the fingerprint image collector in the TFT display substrate, realizing the integration of touch, display and fingerprint identification.What is the evolution process from "off screen" to "on screen"?It is understood that the development of off screen fingerprint is mainly divided into off screen fingerprint (fixed single point), on-screen fingerprint (full screen single point), on-screen fingerprint (Full Screen multi-point Ted embedded), etc. Off screen fingerprint identification includes capacitive, optical and ultrasonic types. However, due to technology and cost, most of the products equipped with this technology can only realize single point fingerprint identification in a fixed area. Now, the latest R & D achievement - on-screen multi-point fingerprint solution adopts the optical fingerprint identification mode, integrates the fingerprint image collector into the display screen, and can realize "Full Screen multi-point" fingerprint identification on the full screen, which has a larger screen identification area than off screen fingerprint products.Integration and multipoint recognition become the direction of attack"The future development direction of on-screen multi-point fingerprint solution must be high integration, full screen fingerprint multi-point identification and high screen proportion." Wu Zhen, director of marketing department of Tianma Microelectronics Co., Ltd., said in an interview with China Electronics News.Specifically, the first is high integration. It is mainly to realize the three in one of touch, display and fingerprint identification. It is necessary to break through the limitation that the optical fingerprint in the LCD screen is difficult to match the thickness of the normal cover plate, so as to have more market competitiveness and mass production; At the same time, because the optical path modulation unit is integrated in the display screen, the thickness of the display screen is reduced by more than 50% compared with the external collimating optical path design scheme, making the design of terminal products lighter and thinner. The second is full screen fingerprint multipoint identification. To support full Screen multi-point fingerprint identification in any display area, it can be applied to full screen blind unlocking, APP encryption unlocking and user-defined fingerprint control to achieve high security and high privacy. The third is the proportion of high screen. The fingerprint identification function is built into the display screen to effectively improve the screen proportion of terminal products and bring users a more ultimate visual experience.In addition, the development and improvement of fingerprint under (in) LCD screen is inseparable from the dimensions of high brightness, high fingerprint recognition rate and improvement of unlocking experience. High brightness requires the brightness of the module to be more than 450 nits. To ensure that more image details are displayed, it can effectively solve the problem of serious brightness loss and bring a smooth viewing and game experience; The ultra-high fingerprint recognition rate refers to the FRR of 3%, which can reach the OLED level; in terms of unlocking experience, the use of unlocking or consumption functions is more intuitive, avoiding accidental touch, simplifying the buttons of mobile phone accessories and improving the overall beauty.It is understood that in the process of tackling the key problems of LCD off screen fingerprint technology, TCL Huaxing has solved the problems such as the development of Blu films, the improvement of TPM brightness and the improvement of infrared sensor recognition accuracy through continuous transformation and attempt of LCD backlight. Finally, TCL Huaxing has launched the LCD panel off screen fingerprint that can clearly see the fingerprint image, and realized the rapid identification function of LCD off screen fingerprint.Optimize cost and find the way of differentiated competitionThe advantage of fingerprint in LCD screen is that it can do large-area and multi fingerprint identification, and can improve the diversified space of human-computer interaction experience of intelligent terminal. For example, it can deeply encrypt app, ensure wealth security and improve vehicle driving experience; it can also provide higher-level guarantee for the information security of smart factory, smart city, smart home, smart transportation and intelligent medical treatment.According to Wu Zhen, in the future, the fingerprint on the LCD screen can encrypt any app. When users click the app icon, they need to complete fingerprint verification before they can further open and run the app. Compared with the encryption method that the existing mobile phone app needs to press the finger at the specified position for fingerprint verification, it is more convenient. The fingerprint on the LCD screen can even realize that when using a joint account on the ATM, two people need to use it at the same time The operation function of transfer can only be realized by inputting fingerprint.Since the release of full screen optical fingerprint identification LCD screen by Youda optoelectronics, Tianma's latest LCD multi touch in screen fingerprint scheme has met the conditions for mass production, and is sending samples to terminals of world-famous brands. The off screen (in) fingerprint scheme has been launched for a long time, but it has not been commercialized on a large scale. What step has the overall off screen fingerprint taken in the process of mass production application?Liu Yushi, senior analyst of cinno research, said in an interview that the under screen (inner) fingerprint of LCD has been opened up technically. Compared with the rigid OLED with optical under screen fingerprint, it has no advantage in mass production cost, so there is little practical application at present. At present, the under screen (inner) fingerprint of LCD is actively optimizing the cost and looking for a way to compete with the off screen fingerprint of OLED.Xu Jingjing, senior analyst of semiconductor device research at sigaintell, said in an interview with China Electronics News that the fingerprint scheme under the LCD screen (inside) is still in the research and development stage. From the perspective of application field, compared with mobile phone terminals, it is expected to be promoted in the vehicle display and door lock Market in the future, and mass production is expected to be realized in the second half of 2021.One of the evolution trends of touch display is to help the touch display module continuously add value by adding more functions from the device structure level. Although the latest LCD on-screen fingerprint solution still has some details to be optimized, the release of this technology has revived the confidence of practitioners in LCD fingerprint solution.
Vivo Screen Fingerprint New Development, Creating a New Fingerprint Identification Technology
Vivo Screen Fingerprint New Development, Creating a New Fingerprint Identification Technology
With the gradual development of electronic information industry, more and more manufacturers have developed many black technologies. However, in the first half of 2018, the most noteworthy black technology should be screen fingerprint technology. With Huawei, Xiaomi, Meizu, oppo and other new products taking turns to use the on-screen fingerprint technology, the on-screen fingerprint technology is no longer vivo's patent. But in the final analysis, no matter how many manufacturers imitate vivo's screen fingerprint technology, vivo's efforts for screen fingerprint technology over the past year can not be ignored.Dating back to 2017, vivo already has the ability to predict the future. It predicts that screen fingerprint technology will become an indispensable black technology in the future. Vivo applied for a patent for screen fingerprint technology on September 28, and the screen fingerprint version of vivo x20plus is the first mobile phone equipped with this technology. The principle of screen fingerprint technology is that the light emitted by the specially adapted screen penetrates the glass cover plate to reach the finger, and the reflected light is different because of the different lines of each user's finger. These reflected light penetrates the screen to realize fingerprint identification.Vivo has broken through the core technical problems in this regard, and successfully made vivo mobile phones commercial and mass-produced screen fingerprint mobile phones. When vivo has not broken through this core problem, although other mobile phone manufacturers can provide optical fingerprint identification chips, they have no way to solve the most fundamental problem. However, vivo not only solves this difficulty, but also deeply studies some deeper problems about screen fingerprint technology, so that it can be applied to full screen mobile devices to realize full screen fingerprint recognition.Thanks to vivo's innovative and real development of this technology, it cooperates with other manufacturers in the supply chain to promote this technology further and further, so as to realize the leap forward progress of this technology. With the development of this technology, vivo X21 has become a major advance in the mass production of screen fingerprint technology. The user only needs to specify the position by touching the bright screen, and the unlocking process can be completed immediately in less than 0.4 seconds, which is very easy and fast.It must be mentioned that the recently popular vivo mobile phone is also equipped with the third generation screen fingerprint technology. The new screen fingerprint technology has improved a lot in recognition efficiency and convenience. Users only need to point their fingers at the position and press gently in the fingerprint identification area to complete the unlocking. The whole process is very fast.Now more and more manufacturers are using screen fingerprint technology, which makes this technology no longer seem unique. However, the convenience of screen fingerprint technology to users is unmatched by other black technologies. So no matter how long it takes, I believe vivo is still the industry leader of screen fingerprint technology and the strongest owner of screen fingerprint technology.
Millet 8th Anniversary Edition Leaked: with Hidden Form Screen Fingerprint
Millet 8th Anniversary Edition Leaked: with Hidden Form Screen Fingerprint
Just now, two new models of Xiaomi, namely "m1803e1a" and "m1805e2a", appeared on the 3C certification website of the national quality certification center. According to the model and network access time, it is highly possible that these two new models are the commemorative versions of Xiaomi 7 and Xiaomi 8 to be released at the end of this month.According to the web data, Xiaomi 7 and Xiaomi 8 anniversary versions are manufactured by Yinghuada (Nanjing) Technology Co., Ltd. with a standard model of "mdy-08-es" power adapter, which supports the fast charging of 5VDC 3A / 9VDC 2A / 12VDC 1.5A with a maximum 18W charging power.According to insiders, at present, the new version of MIUI 9 system of Xiaomi is adapting and optimizing the "bangs" comprehensive screen, and this optimization coincides with the anniversary versions of Xiaomi 7 and Xiaomi 8 launched at the end of the month.It is understood that these two mobile phones adopt the mainstream 19:9 ratio super vision comprehensive screen design on the market, and use the special-shaped screen cutting technology to cut the screen, so as to narrow the frame and improve the proportion of the screen. The "bangs" on the top of the mobile phone are integrated with seven components: IR infrared lens, front camera, distance sensor, light sensor, flood infrared floodlight, dot depth of field lens and earpiece.The 3D face recognition systems of the two mobile phones adopt the "active stereo imaging principle" and imitate the "parallax principle" of the human eye. By shooting out a beam of infrared light, the left infrared sensor and the right infrared sensor track the position of the beam of light, and then use the triangulation principle to calculate the depth of field information in the 3D image (face), so as to complete the face recognition and unlocking, It is one of the unlocking schemes selected by the mainstream high-end flagship mobile phones.In addition, Xiaomi's 8th Anniversary Edition will also be equipped with invisible screen fingerprint technology. When the user's finger presses on the identification area specified on the screen, its blue-green light will shine on the fingerprint for reflection. After reflection, the sensor in it will take an image of the hand finger like a camera, so as to match the identification.The screen fingerprint identification technology used in Xiaomi's 8th Anniversary mobile phone has significantly improved in recognition rate, security and recognition speed, and the use experience is no less than the traditional capacitive fingerprint identification.
In 2019, the Global Shipment of Off Screen Fingerprint Mobile Phones Was About 200 Million, and the Shipment of Huiding Optical Off Screen Fingerprint Ranked
In 2019, the Global Shipment of Off Screen Fingerprint Mobile Phones Was About 200 Million, and the Shipment of Huiding Optical Off Screen Fingerprint Ranked
According to the monthly offline fingerprint market report data of cinno research, the global offline fingerprint mobile phone shipment in 2019 was about 200 million, with a year-on-year increase of 614%. In addition to Samsung and apple, the off screen fingerprint of OLED mobile phones of other brands has become standard, with a penetration rate of more than 90%. It is estimated that by 2024, the overall off screen fingerprint mobile phone shipment will reach 1.18 billion units, with an average annual compound growth rate of CAGR of 42.5%.At present, the practical off screen fingerprint technology mainly includes two directions: optical and ultrasonic. According to cinno research's monthly off screen fingerprint market report data, optical off screen fingerprint accounts for 75% of the overall shipment, which is the most mainstream technical scheme. This is mainly because the second generation optical scheme in 2019 uses a lens to replace the collimating layer, improves the image quality, fixes the whole module on the middle frame without fitting with the screen, and greatly reduces the module cost compared with the first generation scheme. The optical fingerprint of lens scheme promotes the rapid growth of fingerprint penetration under the whole OLED screen in 2019 with low cost.The main manufacturers of optical screen fingerprint in the world include huiding, aegis and siliwei, and huiding occupies a leading market position. According to cinno research's monthly off screen fingerprint market report data, in 2019, huiding OLED off screen fingerprint scheme shipped about 110 million pieces, accounting for 75% of the off screen fingerprint market share and 57% of the overall off screen fingerprint market share, while aegis and siliwei accounted for 12% and 7% of the overall market share respectively.Due to the large thickness of the fingerprint module under the second generation optical screen, it needs to be staggered with the battery during installation to reserve enough optical path space for the lens. Therefore, the installation position on the mobile phone is generally very low and occupies the battery position. With the advent of the 5g era, 5g chips have high power consumption, an increase in the number of antennas and strict requirements for fuselage space. Therefore, the demand for ultra-thin under screen fingerprint scheme gradually emerges. The third generation optical scheme launched by huiding at the end of 2019 adopts microlens, which greatly reduces the thickness of the module. By implanting micro lens instead of traditional large lens, the optical path space can be greatly compressed, so that the thickness of the module can be reduced to the level of 0.3 0.5mm, which can be stacked between the screen and the battery, which improves the design freedom and supports mobile phone manufacturers to put larger batteries. With the volume of 5g mobile phones in 2020, the ultra-thin under screen fingerprint scheme is expected to gradually improve the market penetration.At present, only Qualcomm has the actual commercial capacity and monopolizes the market, mainly supplying Samsung. In 2019, Qualcomm's ultrasonic off screen fingerprint chip scheme shipped about 50 million pieces, accounting for about 25% of the global off screen fingerprint chip scheme market share.Ultrasonic under screen fingerprint has some obvious advantages over optics in principle. Ultrasound can penetrate the epidermis and detect the fingerprint image of the dermis, so it can identify the living body. In theory, it is safer, and it is not easy to be disturbed by stains or strong light. Moreover, since the optical path design does not need to be considered, the thickness of the module can be very thin. But the disadvantages are also obvious. Ultrasonic wave cannot pass through vacuum, and it is difficult to pass through multi-layer solid / gas interface. Too thick glass will reduce the identification effect. Therefore, it must fit with the screen and only support the flexible OLED panel encapsulated by film. It also has high requirements for mobile phone film. At the same time, the cost of the sensing layer made of piezoelectric materials is also higher than the CMOS photosensitive element of optical fingerprint, so the overall cost is significantly higher than the fingerprint under the optical screen, which is only adopted on the flagship models of Samsung Galaxy S and note series.In addition to technical principles, the maturity of the industrial chain is also crucial. There are many fingerprint manufacturers and customers under the optical screen, with relatively mature technology and perfect industrial chain. Although the fingerprint under the ultrasonic screen is more advanced in principle, it cannot compete with optics due to the perfection of the industrial chain. In practical application, there were security vulnerabilities due to software factors in 2019, forcing a large number of apps to temporarily close the fingerprint payment function of Samsung Galaxy S10, note10 and other models until Samsung software fixes the problem. Although this incident was finally resolved, it still dampened the enthusiasm of other manufacturers to adopt ultrasonic. However, this year, Samsung still adopts the ultrasonic scheme on the galaxy S20, indicating its attitude of jointly promoting ultrasonic off-screen fingerprint with Qualcomm.If Apple plans to use off-screen fingerprints in the future, it is likely to use ultrasonic solutions based on Samsung's supply relationship, and Samsung may gradually penetrate ultrasonic fingerprints into the medium and high-end by relying on cost reduction. At the same time, siliwei, a subsidiary of Zhaoyi innovation, is also carrying out relevant development, and may launch its own competing ultrasonic solutions in the future.Cinno research estimates that with the accelerated popularization of OLED mobile phones, it is expected that the shipment of OLED off screen fingerprint mobile phones will increase to about 980 million by 2024, with an average annual compound growth rate of CAGR of 37%.At the same time, although the LCD structure is more complex than OLED, the light transmittance is worse, and the development of off screen fingerprint is more difficult, because LCD still accounts for a considerable proportion of shipments in the medium and short term, actively promoting the development of off screen fingerprint has become another important way for optical off screen fingerprint manufacturers to achieve performance growth, and 2020 is expected to be the first year of mass production and listing of off screen fingerprint. According to cinno research, by 2024, the shipment of fingerprint mobile phones under LCD screen is expected to grow to about 190 million.This article comes from cinno micro signal, which is reproduced and shared in this article.
no data
Contact US

    Bao’an District  Shenzhen City, China

     +86 189 3806 5764

NEWSLETTER SUBSCRIBE
no data
Copyright © 2021 CrowBerry

   

chat online
NEED HELP? WE'RE HERE!