Under-screen fingerprint detection assembly, fingerprint detection method and device and electronic equipment

Abstract

According to the under-screen fingerprint detection assembly, the fingerprint detection method and device and the electronic equipment provided by the embodiment of the invention, the module moving module is controlled to move to drive the fingerprint acquisition module fixedly connected to the module moving module to move towards the touch position of the display screen; in the moving period of the module moving module, the position of the fingerprint acquisition module is detected in real time through the module position detection module, it is ensured that the fingerprint acquisition module can accurately move to the position below the touch position of the display screen for fingerprint acquisition operation, and wide-area fingerprint unlocking of fingerprints under the optical screen is achieved; fingerprint unlocking can be completed when a user performs touch operation in the sliding range of the scroll sliding chain, and the use convenience of the user is improved.

Description

Technical Field

[0001] The present application relates to the field of fingerprint detection technology, and in particular to an under-screen fingerprint detection component, a fingerprint detection method, a device, and an electronic device. Background Art

[0002] With the rapid development and popularization of mobile devices such as smartphones, users have higher requirements for the security, convenience and aesthetics of devices. Fingerprint detection technology, as an important biometric technology, has been widely used in mobile devices such as mobile phones, providing users with a safe and fast way to unlock and authenticate their identities.

[0003] Optical under-screen fingerprint detection technology is a new type of fingerprint detection technology developed in recent years. It integrates the fingerprint sensor under the mobile phone screen, realizing the full-screen design of the screen. Users can directly perform fingerprint recognition on the screen. The current optical under-screen fingerprint unlocking position is a fixed small area, which cannot achieve wide-area coverage and can only be unlocked at a fixed position. Summary of the invention

[0004] Based on this, the present application provides an under-screen fingerprint detection component, a fingerprint detection method, a device and an electronic device, which drives the fingerprint collection module fixedly connected to the module moving module to move toward the touch position of the display screen by controlling the movement of the module moving module. During the movement of the module moving module, the position of the fingerprint collection module is detected in real time by the module position detection module to ensure that the fingerprint collection module can accurately move to the bottom of the touch position of the display screen to perform fingerprint collection operations, thereby realizing wide-area fingerprint unlocking of the optical under-screen fingerprint. The user can complete the fingerprint unlocking by performing touch operations within the sliding range of the scroll chain, thereby improving the convenience of user use.

[0005] As a first aspect of an embodiment of the present application, there is provided an under-screen fingerprint detection component, which is applied to a smart device equipped with a display screen, wherein the under-screen fingerprint detection component is arranged below the display screen, and includes a fingerprint collection module, a module movement module, and a module position detection module;

[0006] The fingerprint collection module is fixedly arranged on the module moving module, and the fingerprint collection module moves following the movement of the module moving module;

[0007] The module moving module moves in response to a control signal sent by the smart device, driving the fingerprint collection module fixed on the module moving module to move, wherein the control signal is generated by the coordinate parameters of the touch position obtained by the smart device based on the user's touch operation on the display screen;

[0008] The module position detection module is used to detect the position of the fingerprint collection module during the movement of the fingerprint collection module, generate a position detection signal and send it to the smart device, wherein the position detection signal is used to instruct the smart device to analyze the coordinate parameters of the current position of the fingerprint collection module;

[0009] The fingerprint acquisition module responds to the fingerprint acquisition signal sent by the smart device, collects the fingerprint information of the touch position, and sends the fingerprint information to the smart device, wherein the fingerprint acquisition signal is generated by the smart device based on the coordinate parameters of the touch position and the current position coordinates of the fingerprint acquisition module.

[0010] In one embodiment, the module moving module includes a processing unit, a scroll part, a scroll chain and a slide rail; the processing unit is communicatively connected with the scroll part; the scroll part includes two scrolls, the two scrolls are respectively fixed at both ends of the slide rail, and the scroll chain is embedded in the slide rail; the two ends of the scroll chain are respectively slidably connected to the two scrolls; the fingerprint collection module is fixedly mounted on the upper surface of the scroll chain.

[0011] In one embodiment, the module position detection module includes a position detection unit and a current detection unit, and the position detection unit is connected to the reel chain to construct a detection circuit; the current detection unit is used to detect the current in the detection circuit and generate a position detection signal to send to the smart device; wherein the position detection signal reflects the sliding length of the reel chain.

[0012] In one embodiment, the reel sliding chain uses a variable resistance material as a variable resistor in the detection circuit.

[0013] In one embodiment, the position detection unit includes a probe and a protective resistor, the current detection unit includes a power management chip, the probe is passively fixedly connected to the fingerprint collection module, the head end of the probe is connected to the reel chain, the tail end of the probe is connected to the power management chip, the power management chip is connected to one end of the protective resistor, and the other end of the protective resistor is slidably connected to the reel chain to construct a detection circuit.

[0014] In one embodiment, a shading component is also included, which includes a first shading member and a second shading member. The first shading member and the second shading member are relatively fixedly arranged on the side of the fingerprint module; the first shading member is slidably connected to one of the scrolls, and the second shading member is slidably connected to the other scroll.

[0015] As a second aspect of an embodiment of the present application, a fingerprint detection method using the under-screen fingerprint detection component as described in the first aspect is provided, comprising the following steps:

[0016] In response to the user's touch operation on the display screen, the coordinate parameters of the touch position are obtained, and a control signal is generated according to the coordinate parameters of the touch position, and sent to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move;

[0017] Obtaining a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, parsing the position detection signal, and obtaining coordinate parameters of the current position of the fingerprint collection module;

[0018] A matching judgment is performed according to the coordinate parameters of the current position of the fingerprint acquisition module and the coordinate parameters of the touch position, and a fingerprint acquisition signal is sent to the fingerprint acquisition module according to the matching judgment result to obtain the fingerprint information sent by the fingerprint acquisition module.

[0019] As a third aspect of an embodiment of the present application, a fingerprint detection device is provided, including:

[0020] The instruction processing module is used to obtain the coordinate parameters of the touch position in response to the user's touch operation on the display screen, generate a control signal according to the coordinate parameters of the touch position, and send the control signal to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move;

[0021] A coordinate parameter calculation module, used to obtain a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, analyze the position detection signal, and obtain the coordinate parameters of the current position of the fingerprint collection module;

[0022] The fingerprint detection module is used to perform matching judgment according to the coordinate parameters of the current position of the fingerprint acquisition module and the coordinate parameters of the touch position, and send a fingerprint acquisition signal to the fingerprint acquisition module according to the matching judgment result to obtain the fingerprint information sent by the fingerprint acquisition module.

[0023] As a fourth aspect of an embodiment of the present application, an electronic device is provided, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor; when the computer program is executed by the processor, the steps of the fingerprint detection method described in the second aspect are implemented.

[0024] The embodiment of the present application controls the two scrolls of the scroll part to rotate, thereby driving the fingerprint collection module fixedly connected to the module moving module to move toward the touch position of the display screen. During the sliding of the scroll chain, real-time current detection is performed through the current detection unit to reflect the current sliding length of the scroll chain and confirm the current position of the fingerprint collection module, so that the fingerprint collection module can be accurately moved to the bottom of the touch position of the display screen to perform fingerprint collection operations, thereby realizing wide-area fingerprint unlocking of the optical under-screen fingerprint. The user can complete the fingerprint unlocking by performing touch operations within the sliding range of the scroll chain, thereby improving the convenience of user use.

[0025] For better understanding and implementation, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of an under-screen fingerprint detection component provided for one embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of a module moving module of an under-screen fingerprint detection component provided in one embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of a module position detection module of an under-screen fingerprint detection component provided in one embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of a light shielding module of an under-screen fingerprint detection component provided in one embodiment of the present application;

[0030] Figure 5 A schematic diagram of a fingerprint detection method according to an embodiment of the present application;

[0031] Figure 6 A schematic diagram of the process of S2 in the fingerprint detection method provided in one embodiment of the present application;

[0032] Figure 7 A schematic diagram of the structure of a fingerprint detection device provided in one embodiment of the present application;

[0033] Figure 8 A schematic diagram of the structure of an electronic device provided for one embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Wherein, when the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] It should be clear that the implementation methods described in the embodiments described below do not represent all implementation methods consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0036] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application are also intended to include plural forms, unless the context clearly indicates other meanings. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone; the character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0037] It should be understood that, although the terms first, second, third, etc. may be used in the present application to describe various information, such information should not be limited to these terms, and these terms are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. Depending on the context, the words "if" / "if" used in the present application can be interpreted as "at the time of" or "when" or "in response to determination".

[0038] See also Figure 1 , Figure 1 A schematic diagram of the structure of an under-screen fingerprint detection component provided for one embodiment of the present application.

[0039] A fingerprint detection component under the screen is applied to a smart device equipped with a display screen 1. The fingerprint detection component under the screen is arranged below the display screen 1, and includes a fingerprint collection module 2, a module moving module 3 and a module position detection module (not shown). The fingerprint collection module 2 is fixedly arranged on the module moving module 3, and the fingerprint collection module 2 moves following the movement of the module moving module 3. The module moving module 3 moves in response to a control signal sent by the smart device, driving the fingerprint collection module 2 fixedly arranged on the module moving module 3 to move, wherein the control signal is generated by the coordinate parameters of the touch position obtained by the smart device based on the touch operation of the user on the display screen 1. Specifically, the display screen 1 can be an LCD capacitive touch screen or an OLED capacitive touch screen, and the display screen 1 can detect the touch operation of the user pressing the screen with a finger through TP touch.

[0040] In this embodiment, the user performs a touch operation on a smart device equipped with a display screen 1. The smart device locks the fingerprint spot position according to the TP touch detection finger touch position, obtains the coordinate parameters of the touch position, and determines whether the fingerprint spot position coordinates are within the sliding range of the module moving module 3 according to the coordinate parameters of the touch position. If so, the smart device sends a control signal to the module moving module 3, and the module moving module 3 responds by moving along the sliding range, driving the fingerprint collection module 2 fixed on the module moving module 3 to move.

[0041] The module position detection module (not shown) is used to detect the position of the fingerprint collection module 2 during the movement of the fingerprint collection module 2, generate a position detection signal and send it to the smart device, wherein the position detection signal is used to instruct the smart device to parse the coordinate parameters of the current position of the fingerprint collection module 2.

[0042] The fingerprint collection module 2 responds to the fingerprint collection signal sent by the smart device, collects the fingerprint information of the touch position, and sends the fingerprint information to the smart device, wherein the fingerprint collection signal is generated by the smart device based on the coordinate parameters of the touch position and the current position coordinates of the fingerprint collection module 2.

[0043] During the movement of the fingerprint collection module 2, the module position detection module (not shown) detects the position of the fingerprint collection module 2, generates a position detection signal and sends it to the smart device. The smart device analyzes the position detection signal to obtain the coordinate parameters of the current position of the fingerprint collection module 2. The smart device matches and judges based on the coordinate parameters of the current position of the fingerprint collection module 2 and the coordinate parameters of the touch position to determine whether the current fingerprint collection module 2 is located at the fingerprint spot position, that is, below the touch position of the display screen 1. If the smart device determines that the current fingerprint collection module 2 is below the fingerprint spot position, the smart device generates a fingerprint collection signal and sends it to the fingerprint collection module 2. The fingerprint collection module 2 responds, collects the fingerprint information of the touch position, and sends the fingerprint information to the smart device, so that the fingerprint collection module 2 can accurately move to the bottom of the touch position of the display screen 1 to perform the fingerprint collection operation.

[0044] By controlling the movement of the module moving module 3, the fingerprint collection module 2 fixedly connected to the module moving module 3 is driven to move toward the touch position of the display screen 1. During the movement of the module moving module 3, the position of the fingerprint collection module 2 is detected in real time through the module position detection module (not shown) to ensure that the fingerprint collection module 2 can accurately move to the bottom of the touch position of the display screen 1 to perform fingerprint collection operations, thereby realizing wide-area fingerprint unlocking of the optical under-screen fingerprint. Users can complete fingerprint unlocking by performing touch operations within the sliding range of the module moving module 3, thereby improving user convenience.

[0045] See also Figure 2 , Figure 2 A schematic diagram of the structure of a module moving module of an under-screen fingerprint detection component provided in one embodiment of the present application.

[0046] In one embodiment, the module moving module 3 includes a processing unit (not shown), a reel portion 31, a reel sliding chain 32 and a slide rail 33. The processing unit (not shown) is a microcontroller module, which is a microcontroller or microcontroller chip, and is used for receiving, sending and analyzing signals.

[0047] The processing unit (not shown) is communicatively connected with the scroll portion 31; the scroll portion 31 includes two scrolls 311, and the two scrolls 311 are respectively fixedly arranged at both ends of the slide rail 33, and the scroll chain 32 is embedded in the slide rail 33; the two ends of the scroll chain 32 are respectively slidably connected with the two scrolls 311; the fingerprint collection module 2 is fixedly mounted on the upper surface of the scroll chain 32.

[0048] The user performs touch operation on the smart device equipped with the display screen 1. The smart device locks the fingerprint spot position according to the TP touch detection finger touch position, obtains the coordinate parameters of the touch position, and judges whether the fingerprint spot position coordinates are within the sliding range of the reel chain 32 in the module moving module 3, that is, the preset wide area, according to the coordinate parameters of the touch position. If so, the smart device sends a control signal to the processing unit (not shown) in the module moving module 3. The processing unit (not shown) generates a drive signal to the reel part 31 in response to the control signal sent by the smart device, controls the motor gears in the two reels 311 of the reel part 31 to work, so that the two reels 311 rotate, drives the reel chain 32 to slide toward the touch position of the display screen 1, and drives the fingerprint collection module 2 fixedly connected to the reel chain 32 to move toward the touch position of the display screen 1.

[0049] See also Figure 3 , Figure 3 A schematic diagram of the structure of a module position detection module of an under-screen fingerprint detection component provided in one embodiment of the present application.

[0050] In one embodiment, the module position detection module includes a position detection unit 4 and a current detection unit 5. The position detection unit 4 is connected to the reel chain 32 to construct a detection circuit. The current detection unit 5 is used to detect the current in the detection circuit and generate a position detection signal to send to the smart device. The position detection signal reflects the sliding length of the reel chain 32.

[0051] In one embodiment, the position detection unit 4 includes a probe 41 and a protective resistor 42, and the current detection unit 5 includes a power management chip 51. The probe 41 is passively fixed on the fingerprint collection module 2, the head end of the probe 41 is connected to the reel slide chain 32, the tail end of the probe 41 is connected to one end of the power management chip 51, the other end of the power management chip 51 is connected to one end of the protective resistor 42, and the other end of the protective resistor 42 is slidingly connected to the reel slide chain 32 to construct a detection circuit. Specifically, the power management chip 51 adopts a PMIC power management chip. The PMIC power management chip can provide a power supply voltage to the detection circuit. At the same time, the PMIC power management chip has the function of detecting current. After continuously supplying a stable voltage of a fixed size to the external circuit, the PMIC power management chip detects the current in the circuit, and generates a position detection signal based on the current and sends it to the smart device.

[0052] In one embodiment, the reel sliding chain 32 uses a variable resistance material as a variable resistor in the detection circuit.

[0053] During the movement of the fingerprint collection module 2, that is, during the sliding of the reel chain 32, since the probe 41 is fixedly arranged on the fingerprint collection module 2, and the head end of the probe 41 is connected to the reel chain 32, that is, the probe 41 and the reel chain 32 maintain relative motion, as the fingerprint collection module 2 moves toward the touch position of the display screen 1, the length of the part where the reel chain 32 is connected to the head end of the probe 41 and to the protective resistor 42, that is, the length of the part of the reel chain 32 that serves as a variable resistor gradually becomes longer, and the effective resistance of the variable resistor becomes higher and higher. At this time, the current value of the detection circuit changes with the change of the effective resistance of the variable resistor. The current detection unit 5 obtains the current in the detection circuit, and generates a position detection signal based on the current and sends it to the smart device. The smart device analyzes the position detection signal to obtain the effective length of the roller chain 32 as a variable resistor in the detection circuit, that is, the sliding length of the roller chain 32. The smart device calculates according to the sliding length of the roller chain 32 to obtain the coordinate parameters of the current position of the fingerprint collection module 2, and realizes real-time monitoring of the position of the fingerprint collection module 2 to ensure that the fingerprint collection module 2 can accurately move to the bottom of the touch position of the display screen 1, thereby realizing accurate fingerprint collection operation.

[0054] In one embodiment, the under-screen fingerprint detection component further includes a light shielding module 6. Figure 5 , Figure 5 A schematic diagram of the structure of a shading module of an under-screen fingerprint detection component provided in one embodiment of the present application.

[0055] The shading module 6 includes a first shading member 61 and a second shading member 62, both of which are made of shading materials, and are relatively fixedly arranged on the side of the fingerprint collection module 2; the first shading member 61 is slidably connected to one of the reels 311, and the second shading member 62 is slidably connected to the other reel 311, so that the first shading member 61 and the second shading member 62 can cover a wide area and can move with the fingerprint collection module 2, thereby realizing shading processing of the area corresponding to the non-fingerprint light spot position, thereby improving the accuracy of fingerprint collection by the fingerprint collection module 2.

[0056] See also Figure 5 , Figure 5 A schematic diagram of a fingerprint detection method provided in an embodiment of the present application, wherein the method comprises the following steps:

[0057] S1: In response to the user's touch operation on the display screen, the coordinate parameters of the touch position are obtained, a control signal is generated according to the coordinate parameters of the touch position, and the control signal is sent to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move.

[0058] The fingerprint detection method of the present application can be executed by a smart device, and the smart device can implement the fingerprint detection method by means of software and / or hardware.

[0059] The smart device can be composed of two or more physical entities, or can be composed of one physical entity. The hardware pointed to by the fingerprint detection method device is essentially a computer device. For example, the smart device can be a computer, a mobile phone, a tablet or a smart interactive tablet.

[0060] In this embodiment, the smart device obtains the coordinate parameters of the touch position in response to the user's touch operation on the display screen, generates a control signal according to the coordinate parameters of the touch position, and sends it to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move.

[0061] Specifically, the user performs a touch operation on a smart device equipped with a display screen. The smart device locks the fingerprint spot position according to the TP touch detection finger touch position, obtains the coordinate parameters of the touch position, generates a control signal according to the coordinate parameters of the touch position, and sends it to the processing unit in the module movement module. The processing unit generates a drive signal in response to the control signal sent by the smart device and sends it to the scroll part to control the motor gears in the two scrolls of the scroll part to work, so that the two scrolls rotate, drive the scroll chain to slide toward the touch position of the display screen, and drive the fingerprint collection module fixedly connected to the scroll chain to move toward the touch position of the display screen.

[0062] S2: Obtain a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, analyze the position detection signal, and obtain coordinate parameters of the current position of the fingerprint collection module.

[0063] In this embodiment, the smart device obtains a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, analyzes the position detection signal, and obtains the coordinate parameters of the current position of the fingerprint collection module.

[0064] See also Figure 6 , Figure 6 The schematic flow diagram of S2 in the fingerprint detection method provided in one embodiment of the present application includes step S21, which is as follows:

[0065] S21: Obtain a detection current value, obtain a moving length of the module moving module according to the detection current value and a preset distance calculation algorithm, and obtain coordinate parameters of the current position of the fingerprint collection module according to the moving length of the module moving module.

[0066] In this embodiment, the smart device analyzes the position detection signal to obtain a detection current value, wherein the detection current value is a current value obtained by the current detection unit in the module position detection module performing real-time detection on the detection circuit constructed based on the roller chain during the movement of the fingerprint collection module, that is, the sliding of the roller chain.

[0067] The smart device obtains the moving length of the module moving module according to the detected current value and the preset distance calculation algorithm. The smart device obtains the coordinate parameters of the current position of the fingerprint collection module according to the moving length of the module moving module. The distance calculation algorithm is:

[0068] Lx=U / (r*Ix)

[0069] Wherein, Lx is the moving length of the module moving module, r is the preset resistivity, U is the voltage provided by the power management chip, and Ix is the detection current value.

[0070] Specifically, the moving length Lx of the module moving module is the effective length of the roller chain as a variable resistor in the detection circuit, that is, the sliding length of the roller chain, and the resistivity r is the resistivity of the variable resistor. The smart device calculates according to the moving length of the module moving module to obtain the coordinate parameters of the current position of the fingerprint collection module, and realizes real-time monitoring of the position of the fingerprint collection module to ensure that the fingerprint collection module can accurately move to the bottom of the touch position of the display screen, thereby realizing accurate fingerprint collection operation.

[0071] S3: Perform matching judgment according to the coordinate parameters of the current position of the fingerprint collection module and the coordinate parameters of the touch position, send a fingerprint collection signal to the fingerprint collection module according to the matching judgment result, and obtain the fingerprint information sent by the fingerprint collection module.

[0072] In this embodiment, the smart device performs a matching judgment based on the coordinate parameters of the current position of the fingerprint acquisition module and the coordinate parameters of the touch position, and sends a fingerprint acquisition signal to the fingerprint acquisition module based on the matching judgment result to obtain the fingerprint information sent by the fingerprint acquisition module.

[0073] Specifically, the smart device obtains the distance between the current position of the fingerprint collection module and the touch position based on the coordinate parameters of the current position of the fingerprint collection module and the coordinate parameters of the touch position. Based on the distance and the preset threshold, if the matrix meets the preset threshold, the smart device determines whether the current fingerprint collection module is located below the fingerprint spot position. The smart device generates a fingerprint collection signal and sends it to the fingerprint collection module. The fingerprint collection module responds, collects the fingerprint information of the touch position, and sends the fingerprint information to the smart device, so that the fingerprint collection module can accurately move to the bottom of the touch position of the display screen to perform the fingerprint collection operation.

[0074] By controlling the two scrolls of the scroll part to rotate, the fingerprint collection module fixedly connected to the module moving module is driven to move toward the touch position of the display screen. During the sliding of the scroll chain, real-time current detection is performed through the current detection unit to reflect the current sliding length of the scroll chain and confirm the current position of the fingerprint collection module. This allows the fingerprint collection module to accurately move to the bottom of the touch position of the display screen to perform fingerprint collection operations, thereby realizing wide-area fingerprint unlocking of the optical under-screen fingerprint. Users can complete fingerprint unlocking by performing touch operations within the sliding range of the scroll chain, thereby improving user convenience.

[0075] Please refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of a fingerprint detection device provided in an embodiment of the present application. The device can implement all or part of the fingerprint detection method through software, hardware, or a combination of both. The fingerprint detection device 7 includes:

[0076] The instruction processing module 71 is used to obtain the coordinate parameters of the touch position in response to the user's touch operation on the display screen, generate a control signal according to the coordinate parameters of the touch position, and send it to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move;

[0077] A coordinate parameter calculation module 72, used to obtain a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, analyze the position detection signal, and obtain the coordinate parameters of the current position of the fingerprint collection module;

[0078] The fingerprint detection module 73 is used to perform matching judgment according to the coordinate parameters of the current position of the fingerprint collection module and the coordinate parameters of the touch position, and send a fingerprint collection signal to the fingerprint collection module according to the matching judgment result to obtain the fingerprint information sent by the fingerprint collection module.

[0079] In this embodiment, in response to the user's touch operation on the display screen, the coordinate parameters of the touch position are obtained through the instruction processing module, and a control signal is generated according to the coordinate parameters of the touch position, and sent to the module movement module to control the module movement module to move, thereby driving the fingerprint acquisition module fixed on the module movement module to move; through the coordinate parameter calculation module, a position detection signal sent by the module position detection module during the movement of the fingerprint acquisition module is obtained, and the position detection signal is analyzed to obtain the coordinate parameters of the current position of the fingerprint acquisition module; through the fingerprint detection module, a matching judgment is performed according to the coordinate parameters of the current position of the fingerprint acquisition module and the coordinate parameters of the touch position, and a fingerprint acquisition signal is sent to the fingerprint acquisition module according to the matching judgment result to obtain the fingerprint information sent by the fingerprint acquisition module. By controlling the two scrolls of the scroll part to rotate, the fingerprint collection module fixedly connected to the module moving module is driven to move toward the touch position of the display screen. During the sliding of the scroll chain, real-time current detection is performed through the current detection unit to reflect the current sliding length of the scroll chain and confirm the current position of the fingerprint collection module. This allows the fingerprint collection module to accurately move to the bottom of the touch position of the display screen to perform fingerprint collection operations, thereby realizing wide-area fingerprint unlocking of the optical under-screen fingerprint. Users can complete fingerprint unlocking by performing touch operations within the sliding range of the scroll chain, thereby improving user convenience.

[0080] See also Figure 8 , Figure 8 This is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application. The present application also provides an electronic device, including: a processor 81, a memory 82, and a computer program 83 stored in the memory 82 and executable on the processor; the electronic device may store multiple instructions, the instructions being suitable for being loaded and executed by the processor Figures 5 and 6 The method steps of the embodiment shown in the figure can be found in the specific implementation process. Figures 5 and 6 The specific description of the illustrated embodiment will not be repeated here.

[0081] Among them, the processor may include one or more processing cores. The processor 81 uses various interfaces and lines to connect the various parts in the electronic device, and executes various functions and processes data of the fingerprint detection device 8 by running or executing instructions, programs, code sets or instruction sets stored in the memory 82, and calling the data in the memory 82. Optionally, the processor 81 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programble Logic Array, PLA). The processor 81 can integrate one or more combinations of a central processing unit (Central Processing Unit, CPU), a graphics processor (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the touch display; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 81, and it can be implemented separately through a chip.

[0082] Among them, the memory 82 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 82 includes a non-transitory computer-readable storage medium. The memory 82 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 82 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch instructions, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 82 may also be optionally at least one storage device located away from the aforementioned processor 81.

[0083] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0084] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0086] In the embodiments provided in the present application, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0087] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0088] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0089] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc.

[0090] The present application is not limited to the above-mentioned implementation modes. If various changes or modifications to the present application do not depart from the spirit and scope of the present application, and if these changes and modifications fall within the claims of the present application and the scope of equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. An under-screen fingerprint detection component is applied to a smart device equipped with a display screen, wherein the under-screen fingerprint detection component is arranged below the display screen, and is characterized in that: It includes a fingerprint collection module, a module movement module and a module position detection module; The fingerprint collection module is fixedly arranged on the module moving module, and the fingerprint collection module moves following the movement of the module moving module; The module moving module moves in response to a control signal sent by the smart device, driving the fingerprint collection module fixed on the module moving module to move, wherein the control signal is generated by the coordinate parameters of the touch position obtained by the smart device based on the user's touch operation on the display screen; The module position detection module is used to detect the position of the fingerprint collection module during the movement of the fingerprint collection module, generate a position detection signal and send it to the smart device, wherein the position detection signal is used to instruct the smart device to analyze the coordinate parameters of the current position of the fingerprint collection module; The fingerprint acquisition module responds to the fingerprint acquisition signal sent by the smart device, collects the fingerprint information of the touch position, and sends the fingerprint information to the smart device, wherein the fingerprint acquisition signal is generated by the smart device based on the coordinate parameters of the touch position and the current position coordinates of the fingerprint acquisition module.

2. The under-screen fingerprint detection component according to claim 1, characterized in that: The module moving module includes a processing unit, a scroll part, a scroll chain and a slide rail; the processing unit is communicatively connected with the scroll part; the scroll part includes two scrolls, and the two scrolls are respectively fixed at both ends of the slide rail, and the scroll chain is embedded in the slide rail; the two ends of the scroll chain are respectively slidably connected with the two scrolls; the fingerprint collection module is fixedly mounted on the upper surface of the scroll chain.

3. The under-screen fingerprint detection component according to claim 2, characterized in that: The module position detection module includes a position detection unit and a current detection unit. The position detection unit is connected to the reel chain to construct a detection circuit. The current detection unit is used to detect the current in the detection circuit and generate a position detection signal to send to the smart device. The position detection signal reflects the sliding length of the reel chain.

4. The under-screen fingerprint detection component according to claim 3, characterized in that: The reel sliding chain uses a variable resistance material as a variable resistor in the detection circuit.

5. The under-screen fingerprint detection component according to claim 4, characterized in that: The position detection unit includes a probe and a protection resistor, the current detection unit includes a power management chip, the probe is passively fixed on the fingerprint collection module, the head end of the probe is connected to the reel chain, the tail end of the probe is connected to the power management chip, the power management chip is connected to one end of the protection resistor, and the other end of the protection resistor is slidably connected to the reel chain to construct the detection circuit.

6. The under-screen fingerprint detection component according to claim 5, characterized in that: It also includes a shading module, which includes a first shading member and a second shading member, and the first shading member and the second shading member are relatively fixedly arranged on the side of the fingerprint collection module; the first shading member is slidably connected to one of the scrolls, and the second shading member is slidably connected to the other scroll.

7. A fingerprint detection method using the under-screen fingerprint detection component according to any one of claims 1 to 6, characterized in that: The steps include: In response to the user's touch operation on the display screen, the coordinate parameters of the touch position are obtained, and a control signal is generated according to the coordinate parameters of the touch position, and sent to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move; Obtaining a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, parsing the position detection signal, and obtaining coordinate parameters of the current position of the fingerprint collection module; A matching judgment is performed according to the coordinate parameters of the current position of the fingerprint acquisition module and the coordinate parameters of the touch position, and a fingerprint acquisition signal is sent to the fingerprint acquisition module according to the matching judgment result to obtain the fingerprint information sent by the fingerprint acquisition module.

8. The fingerprint detection method of the under-screen fingerprint detection component according to claim 5, characterized in that: The step of parsing the position detection signal to obtain the coordinate parameters of the current position of the fingerprint collection module comprises the following steps: Obtain a detection current value, obtain a moving length of the module moving module according to the detection current value and a preset distance calculation algorithm, and obtain coordinate parameters of the current position of the fingerprint collection module according to the moving length of the module moving module, wherein the distance calculation algorithm is: Lx=U / (r*Ix) In the formula, Lx is the moving length of the module moving module, r is the preset resistivity, U is the voltage provided by the power management chip, and Ix is the detection current value.

9. A device using the fingerprint detection method according to claim 6, characterized in that: include: The instruction processing module is used to obtain the coordinate parameters of the touch position in response to the user's touch operation on the display screen, generate a control signal according to the coordinate parameters of the touch position, and send the control signal to the module moving module to control the module moving module to move, thereby driving the fingerprint collection module fixed on the module moving module to move; A coordinate parameter calculation module, used to obtain a position detection signal sent by the module position detection module during the movement of the fingerprint collection module, analyze the position detection signal, and obtain the coordinate parameters of the current position of the fingerprint collection module; The fingerprint detection module is used to perform matching judgment according to the coordinate parameters of the current position of the fingerprint acquisition module and the coordinate parameters of the touch position, and send a fingerprint acquisition signal to the fingerprint acquisition module according to the matching judgment result to obtain the fingerprint information sent by the fingerprint acquisition module.

10. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and executable on the processor; when the computer program is executed by the processor, the steps of the fingerprint detection method according to claim 7 or 8 are implemented.

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