Full-screen mobile phone and face recognition verification method thereof

Abstract

A full-screen mobile phone and a face recognition verification method thereof, the mobile phone comprising a screen, a frame, and a back: the back of the mobile phone is provided with a recess, the recess is provided with an interface, and a pluggable camera module is placed in the recess and has a connector; the back of the mobile phone is made of a mirror material or a glass material; when the pluggable camera is inserted into the back of the mobile phone, the steps of face recognition unlocking are as follows: a user takes out the mobile phone, and the mobile phone faces away from the user; the mobile phone identifies, through gesture recognition, that the user needs to face unlock the mobile phone; the mobile phone sends a prompt to the user that face recognition starts; the mobile phone starts the pluggable camera module to perform face recognition verification; the mobile phone sends a prompt to the user that the verification is successful or fails; the user turns over the mobile phone, the front of the mobile phone faces the user, the mobile phone is automatically unlocked, and the main screen is directly entered without sliding.

Description

Technical Field

[0001] This invention belongs to the technical field of smartphones and their facial recognition verification methods. Background Technology

[0002] In 2017, Apple released the iPhone X, the 10th anniversary phone of the iPhone, featuring a large screen-to-body ratio and Face ID unlocking. Samsung also released the Galaxy Note8 and Galaxy S8, both with large screen-to-body ratios. Xiaomi released the Xiaomi MIX 2, which also featured a large screen-to-body ratio. Full-screen phones have become a trend in mobile phone products.

[0003] However, currently, most companies' products are not truly full-screen. Due to the size of the front-facing camera on the phone, it's impossible to achieve a screen without any bezels around the edges. For example, the Xiaomi MIX 2 has a small bezel at the bottom of the screen to house the front-facing camera and other components. The Apple iPhone X, on the other hand, has a notch at the top of the screen to house the front-facing camera and other components. The iPhone X is currently the world's largest design to retain both the front-facing camera and the largest possible screen size, but this design results in an irregularly shaped screen, making manufacturing very expensive. Furthermore, the space for the front-facing camera is extremely limited, leading to high manufacturing costs and low yield rates.

[0004] CN 201020101414.0, entitled "An Electronic Device with a Plug-in Built-in Camera," discloses a true full-screen mobile phone, but it lacks facial recognition functionality. This patent adds a plug-in camera fixing technology, making the plug-in camera more secure and preventing it from separating from the phone body due to drops or other reasons.

[0005] Currently, it's impossible for most mobile phones to achieve a true full-screen display if they retain a built-in front-facing camera. However, removing the front-facing camera makes it difficult to implement facial recognition functionality.

[0006] The full-screen mobile phone of the present invention has both a pluggable camera module to achieve a true full screen and a method for achieving face recognition. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by proposing a full-screen mobile phone and its face recognition verification method.

[0008] A full-screen mobile phone and its face recognition verification method are disclosed. The mobile phone includes a screen, a frame, and a back panel. The back panel of the mobile phone has a groove with an interface inside. A pluggable camera module is placed inside the groove, and the pluggable camera module has a connector. The frame of the mobile phone has an interface, and the pluggable camera module is configured to be pulled out from the groove on the back panel of the mobile phone and inserted into the interface on the frame of the mobile phone. The pluggable camera module is reinforced with the groove on the back panel of the mobile phone and with the frame of the mobile phone through mechanical connection or magnetic connection, or has both magnetic and mechanical connection.

[0009] The back of the phone is made of mirror or glass material;

[0010] A mobile phone contains circuitry and sensors.

[0011] The steps for unlocking the phone using facial recognition when the detachable camera is attached to the back of the phone are as follows:

[0012] The user takes out their phone, with the back of the phone facing the user;

[0013] The phone uses gesture recognition to identify whether the user needs to unlock the phone with their face.

[0014] The phone sends a notification to the user that facial recognition has begun;

[0015] The phone activates the pluggable camera module to perform facial recognition verification;

[0016] The mobile phone sends a notification to the user indicating whether the verification was successful or failed.

[0017] When the user flips the phone over so the front faces them, the phone unlocks automatically and goes directly to the home screen without requiring any swiping.

[0018] The above prompts are one or more combinations of flashlight prompts, LED light prompts, voice prompts, sound prompts, vibration prompts, text prompts, image prompts, and video prompts.

[0019] The above-mentioned full-screen mobile phone and its facial recognition verification method, when users need to verify their faces while using the phone, the facial recognition verification steps are as follows:

[0020] The mobile phone sends a prompt to the user requiring facial recognition verification;

[0021] The user flips the phone over, so that the back of the phone faces the user;

[0022] The phone sends a notification to the user that facial recognition has begun;

[0023] The phone activates the pluggable camera module to perform facial recognition verification;

[0024] The mobile phone sends a notification to the user indicating whether the verification was successful or failed.

[0025] The user flips the phone over so that the front of the phone faces the user and continues to use the phone;

[0026] The above prompts are one or more combinations of flashlight prompts, LED light prompts, voice prompts, sound prompts, vibration prompts, text prompts, image prompts, and video prompts.

[0027] The aforementioned full-screen mobile phone and its face recognition verification method involve removing the pluggable camera module from the back of the phone and inserting it into the front of the phone when the phone is powered on, then activating the camera for face recognition verification.

[0028] The aforementioned full-screen mobile phone and its face recognition verification method, wherein the pluggable camera module includes one or more connectors, one or more cameras, one or more depth cameras, one or more flashes, one or more microphones, one or more optical image stabilization devices, one or more light sensors, one or more dot projectors, one or more flood illuminators, one or more proximity sensors, one or more LEDs, and one or more speakers.

[0029] The above-mentioned full-screen mobile phone and its face recognition verification method, the method of mechanically reinforcing the pluggable camera module to the groove on the back of the mobile phone is to provide a hook or slot inside the groove on the back of the mobile phone; the method of mechanically reinforcing the pluggable camera module to the interface at the frame is to provide a hook or slot around the interface at the frame.

[0030] The aforementioned full-screen mobile phone and its face recognition verification method, wherein the method of magnetically connecting and reinforcing the pluggable camera module with the groove on the back of the phone involves a groove on the back of the phone and a pluggable camera module, one of which contains a magnet and the other is made of metal; the groove on the back of the phone contains a magnet and the shell of the pluggable camera module is made of metal; or the groove on the back of the phone is made of metal and the pluggable camera module contains a magnet; or the groove on the back of the phone and the pluggable camera module contain magnets of opposite polarities that attract each other.

[0031] The aforementioned full-screen mobile phone and its face recognition verification method, wherein the method of magnetically connecting and reinforcing the interface between the pluggable camera module and the frame is as follows: around the interface on the mobile phone frame and the pluggable camera module, one of which contains a magnet and the other is made of metal; or the interface on the mobile phone frame is made of metal and the pluggable camera module contains a magnet; or the interface on the mobile phone frame and the pluggable camera module contain magnets of opposite polarities that attract each other.

[0032] The aforementioned full-screen mobile phone and its face recognition verification method are equipped with a connecting cable accessory between the mobile phone and the pluggable camera module. One end of the connecting cable is a connector for connecting to the mobile phone, which is the same as the connector on the pluggable camera module; the other end is an interface for connecting to the pluggable camera module, which is the same as the interface in the groove on the back of the mobile phone and the interface on the edge of the mobile phone.

[0033] The aforementioned full-screen mobile phone and its face recognition verification method can plug in or remove one or more connectors on the camera module, such as USB connectors, USB mini connectors, USB Type-C connectors, Lightning connectors, or connectors with customized small metal bumps, small metal recesses, or small metal springs, minimizing the size of the connectors.

[0034] The ports in the recess on the back of the phone, as well as the ports on the phone's frame, are USB ports, USB mini ports, USB Type-C ports, Lightning ports, or custom-made small metal bumps, small metal recesses, or small metal springs, minimizing the number of ports. Attached Figure Description

[0035] The invention will become more apparent to those skilled in the art from the following detailed description taken in conjunction with the accompanying drawings, in which its advantages will become more apparent.

[0036] Figure 1 iPhone X front view illustration

[0037] Figure 2 Xiaomi MIX 2 phone front view illustration

[0038] Figure 3 : A schematic diagram of the front of the mobile phone of the present invention

[0039] Figure 4 : A schematic diagram of the back of the mobile phone of the present invention

[0040] Figure 5 The present invention relates to a pluggable camera module for mobile phones.

[0041] Figure 6 : A schematic diagram of the pluggable camera module of the present invention inserted into the end face of a mobile phone.

[0042] Figure 7 Flowchart of the facial recognition verification and unlocking method for mobile phones during startup according to the present invention.

[0043] Figure 8 The flowchart shows the facial recognition payment verification method used in the mobile phone by Mu.

[0044] Explanation of icon numbers

[0045] 1. Phone frame

[0046] 2 mobile phone screens

[0047] 3. Back of the phone

[0048] 4. Plug-in camera module. Detailed Implementation

[0049] Figure 1 This is a front view of the iPhone X. Figure 2 This is a front view illustration of the Xiaomi MIX 2 phone, as shown below. Figure 1 and Figure 2 As shown, due to the front-facing camera, the iPhone X and Xiaomi MIX 2 cannot achieve a true full-screen display.

[0050] Figure 3 This is a schematic diagram of the front of a mobile phone according to the present invention. 1 is the mobile phone frame, 2 is the mobile phone screen, and the front screen can achieve a true full screen. Figure 4 This is a schematic diagram of the back of the mobile phone according to the present invention. 3 represents the back of the mobile phone, and 4 represents the pluggable camera module. The back of the mobile phone according to the present invention has a groove, an interface is provided in the groove, and the pluggable camera module 4 is placed in the groove.

[0051] The mobile phone of this invention includes a screen, a frame, a back panel, a battery, and circuitry. Except for the pluggable camera module, the internal circuitry of the mobile phone of this invention is the same as that of other mobile phones.

[0052] Figure 5 This is a schematic diagram of the pluggable camera module 4. The pluggable camera module 4 is normally inserted into a groove on the back of the phone.

[0053] The recess on the back of the phone and the pluggable camera module are connected magnetically or mechanically, or both.

[0054] The recess can have hooks or slots to reinforce the connection between the phone and the detachable camera module 4. The back of the phone can also magnetically attach to reinforce the connection between the phone and the detachable camera module 4. One of the recesses on the back of the phone and the detachable camera module 4 contains a magnet, while the other is made of metal. For example, the recess on the back of the phone may contain a magnet, and the housing of the detachable camera module 4 may be made of metal; or the recess on the back of the phone may be made of metal, and the detachable camera module 4 may contain a magnet. Alternatively, the recess on the back of the phone and the detachable camera module 4 may contain magnets of opposite polarity that attract each other.

[0055] like Figure 5The pluggable camera module 4 includes one or more connectors, one or more cameras, one or more depth cameras, one or more flashes, one or more microphones, one or more optical image stabilization devices, one or more light sensors, one or more dot projectors, one or more flood illuminators, one or more proximity sensors, one or more LEDs, one or more speakers, etc.

[0056] Figure 5 One or more connectors on the pluggable camera module 4 can be any type of connector, such as traditional, relatively long connectors, like USB connectors, USB mini connectors, USB Type-C connectors, Lightning connectors, etc.; or they can be custom connectors with small metal bumps, small metal recesses, or small metal springs to minimize the size of the connector.

[0057] The mobile phone frame 1 of this invention has an interface. For example... Figure 6 The pluggable camera module 4 can be removed from the groove on the back of the phone and inserted into the interface at the frame 1.

[0058] The interface in the groove on the back of the mobile phone and the interface on the edge of the mobile phone can be any type of interface. It can be a traditional, relatively long protruding interface, such as a USB interface, a USB mini interface, a USB Type-C interface, a Lightning interface, etc.; or it can be a customized interface with a small metal bump, a small metal concave point, or a small metal spring, minimizing the interface size.

[0059] The phone frame and the pluggable camera module are connected by magnetic or mechanical means, or both.

[0060] Around the interface at frame 1, hooks or slots can be provided to reinforce the connection between the phone and the pluggable camera module 4. The connection between the phone and the pluggable camera module 4 can also be reinforced by magnetic attraction around the interface at frame 1. One of the components around the interface at frame 1 and the pluggable camera module 4 may contain a magnet, while the other may be made of metal. For example, the component around the interface at frame 1 may not contain a magnet, and the casing of the pluggable camera module 4 may be made of metal; or the component around the interface at frame 1 may be entirely made of metal, and the pluggable camera module 4 may contain a magnet. Alternatively, the component around the interface at frame 1 and the pluggable camera module 4 may contain magnets of opposite polarity that attract each other.

[0061] Since the detachable camera module 4 of the mobile phone of the present invention can be plugged in and removed, a method for facial recognition verification and unlocking of the mobile phone of the present invention involves removing the detachable camera module 4 from the back of the phone and inserting it into the front of the phone when starting to use the phone, as shown below. Figure 6 The phone detects the user unplugging the removable camera module 4 from the back and inserting it into the front. The phone interprets this action as equivalent to the user pressing the power button. In other words, the user's action of unplugging and plugging in the camera is equivalent to turning on the phone. Figure 6 In this case, the camera and screen are on the same side. The phone then activates the camera module to perform facial recognition verification. After verification, the phone can be unlocked and directly accessed to the home screen, or the user may need to swipe to access the home screen.

[0062] However, if users have to plug and unplug the camera every time they turn on the device, it becomes very inconvenient. It also reduces the lifespan of the camera's connector.

[0063] The back of the mobile phone 3 of the present invention is made of a mirror material that can clearly reflect a person's face, or a glass material that can roughly reflect the outline of a person's face.

[0064] Many people have a misconception that facial recognition requires the screen to be directly facing the user, clearly displaying the user's face as captured by the camera. However, in reality, facial recognition only involves the camera module, along with the corresponding processor and software. As long as the camera is pointed at the user's face, it works. Displaying the user's face on the screen is simply to provide feedback to the user, ensuring their face is aligned correctly and captured by the camera.

[0065] Therefore, facial recognition doesn't necessarily require the phone screen to be facing the user's face. The back of the phone can be used with the rear camera for facial recognition. The current version of the phone uses a mirror-like material that clearly reflects the face, or a glass material that roughly reflects the facial contours. This mirror-like material provides the user with relatively clear feedback (although not as lossless as a curved screen), but as long as the user is aware that their face is aligned, the camera is capturing their image. In reality, users sometimes don't need crystal-clear feedback; just the back of the phone roughly reflecting the facial contours, letting the user know if their face is aligned, is sufficient.

[0066] Therefore, when the back of the phone in this invention is made of mirror or glass, the user can get enough feedback to see if their face is aligned, so that facial recognition can be performed when the camera is inserted into the back of the phone.

[0067] Specific facial recognition methods include... Figure 7 As shown. Step 101: The user takes the phone out of their pocket, on a table, or in a bag, or holds the phone from the front with the back facing them. The phone of this invention has various built-in sensors and intelligent gesture functionality.

[0068] Intelligent gestures include a device motion detection unit, a device environment detection unit, a device power detection unit, and a user usage analysis unit.

[0069] The equipment motion detection unit detects the movement trajectory of the equipment in three-dimensional space using sensors on the equipment. The motion sensors supported by the equipment motion detection unit include, but are not limited to, triaxial gyroscopes, accelerometers, height sensors, displacement sensors, inclinometers, orientation sensors, vibration sensors, proximity sensors, linear acceleration sensors, and rotation vector sensors.

[0070] The equipment environmental monitoring unit detects environmental variables around the equipment using sensors on the device. For example, a light sensor detects changes in ambient light intensity. Supported environmental sensors include, but are not limited to, light sensors, sound sensors, temperature sensors, humidity sensors, barometric pressure sensors, air quality sensors, wind sensors, communication signal sensors, fingerprint sensors, GPS sensors, compass sensors, facial recognition sensors, smoke sensors, ultrasonic sensors, gas sensors, pressure sensors, ultraviolet sensors, magnetic / magnetic sensors, infrared sensors, ultrasonic sensors, collision sensors, electronic compass sensors, gravity sensors, heart rate sensors, sweat sensors, blood pressure sensors, blood glucose sensors, ECG sensors, electromyography sensors, body temperature sensors, electroencephalogram (EEG) sensors, particle size (dust) sensors, and touch sensors.

[0071] The device power detection unit detects the device's power supply status through the circuitry on the device. The power supply status includes adapter power supply, internal battery power supply, external battery power supply, battery charging, power off, power on, sleep mode, wake-up mode, power supply voltage, and power supply current.

[0072] Based on the combination of the device's movement trajectory, environmental variables around the device, and the device's power supply status, the system can calculate how the user uses the device. If the user's usage of the device meets the system's or user's set conditions, the system will execute the set operations. The set operations include automatic wake-up, automatic unlock, automatic hibernation, shutdown, power-on, directly opening the corresponding application set by the system or user, closing the currently running application, and automatically displaying the icon of a certain type of application on the main interface.

[0073] The equipment motion detection unit detects the motion variables of the equipment in three-dimensional space: motion variables include displacement, angular velocity, velocity, acceleration, rotation vector, height, and tilt angle.

[0074] The equipment environment detection unit detects environmental variables around the equipment, including light, temperature, humidity, sound, geographical location, gravity, local time, heart rate, sweat, blood pressure, blood sugar, electrocardiogram, electromyography, electroencephalogram, and facial recognition.

[0075] The device power detection unit monitors the power supply status of the device, including adapter power supply, internal battery power supply, external battery power supply, battery charging, power off, power on, hibernation, wake-up, power supply voltage, and power supply current.

[0076] User usage scenarios include five types: holding the device vertically, holding the device horizontally, placing the device horizontally on an object, holding the device vertically, and placing the device in a pocket or bag; as well as switching between these five types.

[0077] The user usage analysis unit calculates the changes in the device's motion variables in three-dimensional space, the changes in the environmental variables around the device, and combines the device's power supply status to analyze the user's usage patterns within the above five categories, or the switching categories between the five categories.

[0078] The system analyzes user usage patterns to calculate user usage scenarios and then executes the corresponding operations set by the system and the user.

[0079] like Figure 7 In step 102, the phone uses various sensors and calculations to recognize the user's action of taking out the phone and determines that the user needs to unlock the phone with their face. Next, in step 103, the phone sends a prompt to the user indicating that face recognition has begun. This prompt can be a flashing or illuminating camera flash, a flashing or illuminating camera LED, a voice prompt (e.g., "Verification begins"), a sound prompt, a vibration prompt, or a combination of these methods.

[0080] After receiving the prompt, the user should point the detachable camera at their face. The user can then check the mirror or glass material on the back of the phone to see if their face is properly positioned.

[0081] The next step is step 104, where the phone activates its camera module to perform facial recognition verification. The next step is step 105, where the phone sends the user a notification of successful or failed verification. A failure notification can be an abnormal flash of the flashlight, a flashing red LED, a voice prompt (e.g., "Verification failed"), an audio prompt (e.g., a beep), or a vibration prompt (e.g., a strong vibration). A successful verification notification can be a solid flashlight, a solid LED, a voice prompt (e.g., "Verification successful"), an audio prompt (e.g., a pleasant ringtone, a beep, or the sound of unlocking a door), a vibration prompt (e.g., a gentle vibration), or a combination of these methods.

[0082] If verification fails, the phone will prompt you to re-verify and re-enter step 103.

[0083] After receiving a successful verification notification from their phone, as in step 106, the user flips the phone so that the front faces them, and the phone automatically unlocks, directly accessing the home screen without needing to swipe. The iPhone X, after unlocking with facial recognition, does not directly access the home screen; instead, the user needs to swipe up from the bottom of the screen to enter. This design is likely to prevent accidental user operation. In the method of this invention, the user's action of flipping the phone is essentially equivalent to swiping the screen on the iPhone X. Moreover, the action of flipping the phone is more ergonomic than swiping from the bottom of the screen.

[0084] Therefore, the method of facial recognition using the rear camera of the mobile phone in this invention is not much different from the method of facial recognition using the front camera of the iPhone X. The only additional step is to use LED lights, flash, sound, voice, and vibration to prompt the user to start the verification process, and to indicate whether the verification was successful or failed.

[0085] In fact, the iPhone X also has steps to prompt users to start or to indicate whether the verification was successful or failed. However, on the iPhone X, this prompt is given to the user through the unlocking and locking of a lock icon on the screen.

[0086] Therefore, in essence, the facial recognition method of this invention involves the user taking out their phone in the first step, which is the same as with the iPhone X. The only difference is that in this invention, the phone is positioned with the back facing the user, while in the iPhone X, the phone is positioned with the front facing the user. Then, this invention prompts the user to start facial recognition, and the subsequent steps are the same as with the iPhone X. Next, the iPhone X uses a lock icon on its screen to indicate whether the verification was successful or failed, while this invention uses flash, LED lights, voice, sound, and vibration to indicate the success or failure. After successful verification, this invention flips the phone to enter the home screen, while the iPhone X swipes the screen to enter the home screen.

[0087] Therefore, the steps and time required for facial recognition unlocking using the rear camera on a phone with a mirrored back and glass back, similar to those of the iPhone X using the front camera, are roughly the same. However, this phone achieves the advantages of a truly full-screen front, a more aesthetically pleasing design, lower costs, and a significantly higher manufacturing yield rate.

[0088] Aside from the initial facial recognition unlocking required when first using the phone, users can initially use the phone facing forward. If facial recognition is needed during this process, the steps for verification using the rear camera are as follows: Figure 8 One use case is when users need to use their phones for facial recognition payments; another use case is when users need to unlock certain applications or settings within certain applications.

[0089] like Figure 8 When a user needs to verify their face while using the phone, as shown in step 201, the phone sends the user a prompt requiring face verification. This prompt can be traditional text, images, or videos on the screen, or it can be a voice prompt, sound prompt, vibration prompt, or a combination of the above methods.

[0090] Next, as in step 202, after receiving the prompt, the user flips the phone over so that the back of the phone faces them.

[0091] Next, as in step 203, the mobile phone sends a prompt to the user indicating that face recognition has started. The specific instructions for this prompt are the same as those described in step 103 above.

[0092] Next, as in step 204, the mobile phone activates the pluggable camera module 4 to perform facial recognition verification.

[0093] Next, as in step 205, after verification, the mobile phone sends the user a notification indicating whether the verification was successful or failed. The specific details of this notification are the same as described in step 105 above. If verification fails, the mobile phone will prompt the user to re-verify and return to step 203.

[0094] Next, as in step 206, after successful verification, the user receives a confirmation message, flips the phone so that the front of the phone faces them, and continues to use the phone.

[0095] The mobile phone of the present invention is also equipped with a connecting cable accessory between the mobile phone and the pluggable camera module 4. One end of the connecting cable is a connector for connecting the mobile phone, which is the same as the connector on the pluggable camera module; the other end is an interface for inserting the pluggable camera module, which is the same as the interface in the groove on the back of the mobile phone and the interface on the edge of the mobile phone.

[0096] When taking selfies with a mobile phone, users often struggle to get a good shot of their face, or the face may not fit in the frame. The traditional solution is to use a selfie stick. The connecting cable accessory of this invention is more convenient to carry than a selfie stick.

[0097] Specific layouts and operating methods based on the ideas of this invention are all within the protection scope of this invention. Substitutions and shifts in positions, quantities, types, etc., in specific examples of this invention are also within the protection scope of this invention.

[0098] For example, besides mobile phones, the detachable camera of this invention, and the method for facial recognition using a rear-facing camera, can also be used on any other electronic device, such as tablets, laptops, desktop computers, all-in-one computers, convertible laptops, music players, watches, bracelets, glasses, game consoles, remote controls, etc. Appropriate modifications can be made based on the characteristics of other devices. For example, to house the detachable camera on a tablet, a recess is provided on the back of the tablet; to house the detachable camera on a laptop, a recess is provided on the side of the laptop, such as near the USB port.

[0099] For example, the illustrations of this invention use a single pluggable camera module, but multiple pluggable camera modules can also be configured.

[0100] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the invention and is not intended to limit the invention. Although the invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0101] For example, the facial recognition method using the rear camera of this invention can be used with a detachable camera or without one. The rear camera is fixed to the back of the phone, providing the user with a separate external camera module for selfies and video calls.

Claims

1. A full-screen mobile phone and a face recognition verification method thereof, characterized in that the mobile phone comprises a screen, a frame, and a back: the back of the mobile phone is provided with a recess, the recess is provided with an interface, and a pluggable camera module is placed in the recess, and the pluggable camera module is provided with a connector; the frame of the mobile phone is provided with an interface, the pluggable camera module is designed to be pulled out of the recess on the back of the mobile phone and inserted into the interface of the frame of the mobile phone; the pluggable camera module and the recess on the back of the mobile phone and the frame of the mobile phone are mechanically connected or magnetically connected, or both magnetically and mechanically connected. The back of the mobile phone is made of mirror material or glass material. The mobile phone comprises a circuit and a sensor. The steps of face recognition unlocking when the pluggable camera is inserted into the back of the mobile phone are as follows: The user takes out the mobile phone, and the back of the mobile phone faces the user. The mobile phone identifies that the user needs to face unlock the mobile phone through gesture recognition. The mobile phone sends a prompt to the user to start face recognition. The mobile phone starts the pluggable camera module to perform face recognition verification. The mobile phone sends a prompt to the user that the verification is successful or failed. The user flips the mobile phone, the front of the mobile phone faces the user, the mobile phone is automatically unlocked, and the main screen is directly entered without sliding. The prompt is one or a combination of the following: a flashlight prompt, an LED light prompt, a voice prompt, a sound prompt, a vibration prompt, a text prompt, a picture prompt, and a video prompt. 2.A full-screen mobile phone and a face recognition verification method thereof according to claim 1, characterized in that when the user needs face recognition verification during use of the mobile phone, the steps of face recognition verification are as follows: The mobile phone sends a prompt to the user that face recognition verification is needed. The user flips the mobile phone, and the back of the mobile phone faces the user. The mobile phone sends a prompt to the user to start face recognition. The mobile phone starts the pluggable camera module to perform face recognition verification. The mobile phone sends a prompt to the user that the verification is successful or failed. The user flips the mobile phone, the front of the mobile phone faces the user, and the use of the mobile phone continues. The prompt is one or a combination of the following: a flashlight prompt, an LED light prompt, a voice prompt, a sound prompt, a vibration prompt, a text prompt, a picture prompt, and a video prompt. 3.A full-screen mobile phone and a face recognition verification method thereof according to claim 1, characterized in that when the mobile phone is started and used, the pluggable camera module is removed from the back of the mobile phone and inserted into the front of the mobile phone to start the camera to perform face recognition verification. 4.The full-screen mobile phone and the face recognition verification method thereof according to claim 1, characterized in that The pluggable camera module comprises one or more connectors, one or more cameras, one or more depth cameras, one or more flashlights, one or more microphones, one or more optical image stabilization devices, one or more light sensors, one or more Dot projectors, one or more Flood illuminators, one or more Proximity Sensors, one or more LEDs, and one or more speakers.

5. The full-screen mobile phone and its face recognition verification method according to claim 1, wherein the mechanical connection and reinforcement method of the pluggable camera module and the recess on the back of the mobile phone is that the recess on the back of the mobile phone is internally provided with a clasp or a slot; and the mechanical connection and reinforcement method of the pluggable camera module and the interface at the frame is that the interface at the frame is provided around with a clasp or a slot.

6. The full-screen mobile phone and its face recognition verification method according to claim 1, wherein the magnetic connection and reinforcement method of the pluggable camera module and the recess on the back of the mobile phone is that one of the recess on the back of the mobile phone and the pluggable camera module is internally provided with a magnet, and the other is made of metal material; the recess on the back of the mobile phone is internally provided with a magnet, and the shell of the pluggable camera module is made of metal material; or the recess on the back of the mobile phone is made of metal material, and the pluggable camera module is internally provided with a magnet; or the recess on the back of the mobile phone and the pluggable camera module are internally provided with magnets with opposite polarities and are mutually attracted. 7.The full-screen mobile phone and the face recognition verification method thereof according to claim 1, characterized in that The magnetic connection and reinforcement method of the pluggable camera module and the interface at the frame is that one of the interface at the frame and the pluggable camera module is internally provided with a magnet, and the other is made of metal material; the interface at the frame is internally provided with a magnet, and the shell of the pluggable camera module is made of metal material; or the interface at the frame is made of metal material, and the pluggable camera module is internally provided with a magnet; or the interface at the frame and the pluggable camera module are internally provided with magnets with opposite polarities and are mutually attracted. 8.The full-screen mobile phone and the face recognition verification method thereof according to claim 1, characterized in that The connection line accessory between the mobile phone and the pluggable camera module is configured with one end of the connection line being a connector for connecting the mobile phone, the connector being the same as the connector on the pluggable camera; and the other end being an interface for connecting the pluggable camera module, the interface being the same as the interface in the recess on the back of the mobile phone and the interface at the frame of the mobile phone. 9.The full-screen phone and the face recognition verification method thereof according to claim 1, characterized in that One or more connectors on the pluggable camera module are USB connectors, USB mini connectors, USB Type-C connectors, Lightning connectors, or connectors with customized metal small protrusions or metal small recesses or metal small springs, and the connectors are minimized. The interface in the recess on the back of the mobile phone and the interface at the frame of the mobile phone are USB interfaces, USB mini interfaces, USB Type-C interfaces, Lightning interfaces, or interfaces with customized metal small protrusions or metal small recesses or metal small springs, and the interfaces are minimized.

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