Detection assembly, touch display screen, electronic device and control method therefor

Abstract

The present application relates to the field of electronics. Provided in the embodiments of the present application are a detection assembly, a touch display screen, an electronic device and a control method therefor, which are used for providing a detection assembly integrating functions of bioelectric signal detection and identity recognition signal detection. The detection assembly comprises a texture recognition module, a first conductive layer and a bioelectric signal acquisition module. The first conductive layer is arranged on an acquisition side of the texture recognition module and serves as a biological sampling electrode. Fusing the texture recognition module and the first conductive layer serving as a biological sampling electrode with each other allows one detection assembly to have both functions of identity recognition and bioelectric signal acquisition. Thus, when users place parts to be tested such as hands on detection assemblies, identity recognition signals and bioelectric signals can be obtained.

Description

Detection assembly, touch display screen, electronic device and control method thereof

[0001] The present application claims priority to the Chinese patent application No. 202411389579.5, filed on September 30, 2024, and entitled "Detection assembly, touch display screen, electronic device and control method thereof", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of electronics, and in particular to a detection assembly, a touch display screen, an electronic device and a control method thereof. BACKGROUND

[0003] With the development of electronic technology, identity recognition functions are integrated in electronic devices such as wearable devices or terminal devices. For example, identity information such as fingerprint information and palmprint information can be collected to realize the high-value functions of electronic device + identity recognition = personal key, personal wallet, etc.

[0004] With the attention of users to health status, bioelectric signal collection functions are also integrated in electronic devices such as wearable devices or terminal devices. For example, bioelectric signal collection functions can be used to realize the high-value functions of electronic device + bioelectric signal = family member health management = electrocardiogram (ECG), photo plethysmography (PPG), etc.

[0005] However, current bio-recognition detection modules have relatively single functions. For example, a fingerprint module can only recognize fingerprints, and a health detection module can only perform specific biological detection. If fingerprint detection and bioelectric detection functions are to be realized, at least two sets of bio-recognition detection modules with specific functions need to be integrated in an electronic device. This results in the inability to realize high integration and simple appearance of the system, and increases the learning cost of users. SUMMARY

[0006] The present application provides a detection assembly, a touch display screen, an electronic device and a control method thereof, which are used to provide a detection assembly that realizes the functions of bioelectric signal detection and identity recognition signal detection.

[0007] In a first aspect, the present application provides a detection assembly, for example, a detection assembly with both fingerprint recognition function and bioelectric signal collection function. The detection assembly comprises a fingerprint recognition module, a first conductive layer and a bioelectric signal collection module. The fingerprint recognition module is used to detect an identity recognition signal. The first conductive layer is arranged on the collection side of the fingerprint recognition module. The resistivity of the first conductive layer is 1×10 -2 Ω·m~1×10 6Ω·m. The bioelectric signal acquisition module is coupled with the first conductive layer, and is configured to acquire a signal of the first conductive layer. For example, the bioelectric signal acquisition module is configured to generate a bioelectric signal in combination with the signal of the first conductive layer.

[0008] The detection assembly provided by the embodiments of the present application fuses the fingerprint identification module and the first conductive layer serving as a bioelectrode with each other, so that one detection assembly has both the identity identification and bioelectric signal acquisition functions. Therefore, when a user places a hand or other detection part on the detection assembly, the identity identification signal and the bioelectric signal can be obtained, and the functions of unlocking and health measurement are realized. However, the first conductive layer arranged on the acquisition side of the fingerprint identification module will interfere with the performance of the fingerprint identification module. By setting the resistivity of the first conductive layer in the range of 1×10 -2 Ω·m to 1×10 6 Ω·m, the first conductive layer almost does not block the identification signal from the fingerprint identification module. The signal-to-noise ratio of the fingerprint identification module can be prevented from being reduced due to too small resistivity, and the accuracy of the fingerprint identification can be prevented from being affected. The bioelectric signal can be prevented from being greatly attenuated due to too large resistivity, and the accuracy of the bioelectric signal can be prevented from being affected. Therefore, the compatibility of the identity information identification and the bioelectric signal detection is optimized, and the two-in-one fusion of the modules with different detection principles of identity information identification and bioelectric signal detection is realized.

[0009] In a possible implementation, the material of the first conductive layer includes carbide, conductive oxide or metal oxide. These are some suitable materials with suitable resistivity and mature technology.

[0010] In a possible implementation, the thickness of the first conductive layer is less than 30 um. In this way, the influence on the accuracy of the fingerprint identification module can be reduced as much as possible while the accuracy of the bioelectric signal is improved.

[0011] In a possible implementation, the first conductive layer has an integral block structure. In this way, the acquisition area of the first conductive layer can be increased, the bioelectric signal acquisition amount can be increased, the signal stability can be improved, and the accuracy of the bioelectric signal detection result can be improved.

[0012] In a possible implementation, the detection assembly further includes an operational amplifier. An input end of the operational amplifier is coupled with the first conductive layer, and an output end of the operational amplifier is coupled with the bioelectric signal acquisition module. The operational amplifier has the characteristics of high input impedance and low noise. By arranging the operational amplifier in front of the bioelectric signal acquisition module, the input impedance of the circuit can be significantly improved, the parasitic parameters of the circuit can be reduced, the attenuation of the bioelectric signal output by the first conductive layer can be obviously reduced, the anti-interference ability of the circuit can be improved, and the quality (signal-to-noise ratio) of the bioelectric signal can be improved.

[0013] In a possible implementation, the detection assembly further comprises a pre-detection module, configured to detect whether the user touches the first conductive layer. By arranging the pre-detection module in the detection assembly, the pre-detection module can be used to determine whether the user's finger or other body part to be detected is in contact with the detection assembly. In this way, the power consumption can be reduced by starting the identity recognition signal acquisition and the bioelectric signal acquisition only after the detection assembly detects the presence of the body part to be detected.

[0014] In a possible implementation, the first conductive layer is arranged on the surface of the detection assembly and used to contact the user. The single-conductive-layer structure of the first conductive layer serves as a bio-detection electrode, has low impedance on the entire detection path, and is strong in anti-interference capability.

[0015] In a possible implementation, the detection assembly further comprises an insulating medium layer arranged on the side of the first conductive layer away from the ridge identification module. The first conductive layer, the insulating medium layer, and the user can form a capacitive detection electrode, and the bioelectric signal can still be detected. At this time, the insulating medium layer is arranged above the first conductive layer, and can protect the first conductive layer. On the one hand, the requirement for the wear resistance of the material of the first conductive layer can be reduced, and the requirement for the material selection can be lowered. On the other hand, the interference of the active doping material in the first conductive layer with the user's sweat after the reaction can be reduced, and the signal quality can be improved.

[0016] In a possible implementation, the ridge identification module comprises a ridge identification chip, a packaging layer, and a conversion board; the conversion board is coupled to the ridge identification chip, and the packaging layer covers the ridge identification chip; and the side of the packaging layer away from the ridge identification chip is the collection side of the ridge identification module. This is a ridge identification module with a simple structure.

[0017] In a possible implementation, the packaging layer comprises conductive holes respectively coupled to the first conductive layer and the ridge identification chip, the bioelectric signal acquisition module is coupled to the conversion board, and the bioelectric signal acquisition module is coupled to the first conductive layer through the ridge identification chip and the conductive holes. This is a simple conversion method.

[0018] In a possible implementation, the detection assembly comprises an interconnection line arranged on the side of the ridge identification module and coupled to the first conductive layer and the conversion board; the bioelectric signal acquisition module is coupled to the conversion board and coupled to the first conductive layer through the interconnection line. This is a low-cost conversion method.

[0019] In a possible implementation, the detection assembly further includes an excitation source, an impedance matching network, and a second conductive layer; the impedance matching network is coupled between the excitation source and the first conductive layer, and the second conductive layer is configured to contact the user; and the second conductive layer is further coupled to the bioelectric signal acquisition module. The first conductive layer, the second conductive layer, and the bioelectric signal acquisition module can form an electrocardiogram acquisition system to acquire the health information of the user. The excitation source and the impedance matching network can serve as a pre-detection module. By transmitting an excitation signal to the first conductive layer and acquiring an excitation feedback signal on the second conductive layer, it can be determined whether a body part to be detected touches the first conductive layer.

[0020] In a second aspect of the embodiments of the present application, a touch display screen is provided, which includes a touch layer, a first conductive layer, and a bioelectric signal acquisition pin. The touch layer includes a texture recognition module configured to detect an identity recognition signal. The first conductive layer is disposed on a side of the touch layer facing a light-out measuring direction of the touch display screen, and is stacked with the texture recognition module. The first conductive layer has a resistivity of 1×10 -2 Ω·m to 1×10 6 Ω·m. The first conductive layer is made of a transparent conductive material. The bioelectric signal acquisition pin is coupled to the first conductive layer and configured to transmit a signal of the first conductive layer. For example, the detection module is coupled to the bioelectric signal acquisition module through the bioelectric signal acquisition pin. The detection module provided in the embodiments of the present application has the same beneficial effects as the detection assembly provided in the first aspect, which will not be described herein again.

[0021] In a possible implementation, the material of the conductive layer includes carbide, conductive oxide, or metal oxide.

[0022] In a possible implementation, the thickness of the conductive layer is less than 30 um.

[0023] In a possible implementation, the conductive layer is located on the surface of the detection assembly and configured to contact the user.

[0024] In a possible implementation, the detection assembly further includes an insulating medium layer disposed on a side of the conductive layer away from the texture recognition module.

[0025] In a third aspect of the embodiments of the present application, an electronic device is provided, which includes a processor and a detection assembly. The detection assembly includes the detection assembly of any one of the first aspect, and the detection assembly is coupled to the processor. Alternatively, the electronic device includes a processor and a touch display screen. The touch display screen includes the touch display screen of any one of the second aspect, and the touch display screen is coupled to the processor.

[0026] The electronic device provided by the embodiment of the present application comprises a detection assembly or a touch display screen integrating the functions of bioelectric signal detection and identity recognition signal detection. A user places a hand or a detection part on the first conductive layer to obtain the identity recognition signal and the bioelectric signal. The electronic device has high integration and a simple appearance while having the functions of identity recognition and bioelectric signal acquisition.

[0027] In a possible implementation, the electronic device further comprises a frame body; the frame body comprises an opening, and the opening exposes the detection assembly. This is an electronic device with the detection assembly mounted on the side.

[0028] In a possible implementation, the first conductive layer is exposed to the surface of the electronic device and serves as a bioelectrode.

[0029] In a possible implementation, the insulating medium layer is exposed to the surface of the electronic device and serves as a bioelectric capacitance electrode together with the first conductive layer and the user layer.

[0030] In a possible implementation, the second conductive layer is exposed to the surface of the electronic device to facilitate signal acquisition.

[0031] In a possible implementation, the second conductive layer is the back cover of the electronic device. The second conductive layer is multiplexed as the back cover of the electronic device, which can simplify the structure of the electronic device.

[0032] The fourth aspect of the embodiment of the present application provides a control method of an electronic device. The electronic device comprises a fingerprint identification module, a first conductive layer, a second conductive layer, and a bioelectric signal acquisition module. The control method comprises the following steps: the bioelectric signal acquisition module acquires signals of the first conductive layer and the second conductive layer to generate a bioelectric signal; the fingerprint identification module acquires an identity recognition signal; and an unlocking instruction is generated when the identity recognition signal and the bioelectric signal are both passed.

[0033] The control method of the electronic device provided by the embodiment of the present application generates an unlocking instruction only when the identity recognition signal and the bioelectric signal are both passed. If the bioelectric signal is not passed, no unlocking instruction is generated, and the electronic device will not have an unlocking operation. The living body recognition can be implemented, and the risk of directly unlocking the electronic device by a false finger and the like is reduced.

[0034] In a possible implementation, before the fingerprint identification module acquires the identity recognition signal, the control method further comprises the following steps: determining whether the bioelectric signal is passed; and acquiring the identity recognition signal by the fingerprint identification module, which comprises the following step: acquiring the identity recognition signal by the fingerprint identification module when the bioelectric signal is a preset waveform signal. Determining whether the bioelectric signal is passed is equivalent to a process of excluding a false finger. After the false finger is excluded, fingerprint recognition is performed, which can further reduce the power consumption of the electronic device 1.

[0035] In a possible implementation, the control method further includes: generating a biological detection report matched with the identity information, in a case where both the identity recognition signal and the bioelectric signal pass.

[0036] In a possible implementation, before the bioelectric signal is generated by the bioelectric signal acquisition module, the control method further includes: determining whether the user touches the first conductive layer; and the identity recognition signal is acquired by the fingerprint recognition module, including: acquiring the identity recognition signal by the fingerprint recognition module in a case where the user touches the first conductive layer; and / or the bioelectric signal is generated by the bioelectric signal acquisition module, including: generating the bioelectric signal by the bioelectric signal acquisition module in a case where the user touches the first conductive layer.

[0037] By detecting whether the user touches the first conductive layer before the identity recognition signal and the bioelectric signal are acquired, the identity recognition signal and the bioelectric signal are acquired after it is determined that the user touches the first conductive layer. If the user does not touch the first conductive layer, the identity recognition signal and the bioelectric signal are not acquired. In this way, the power consumption of the electronic device can be reduced.

[0038] In a possible implementation, the electronic device further includes an excitation source; and the determination of whether the user touches the first conductive layer includes: the excitation source sending a lead detection excitation signal to the first conductive layer, and determining whether the user touches the first conductive layer according to an excitation feedback signal of the second conductive layer. This is an easy-to-implement solution.

[0039] In a possible implementation, the electronic device further includes an excitation source; and the determination of whether the user touches the first conductive layer includes: the excitation source sending a lead detection excitation signal to the first conductive layer, and determining whether the user touches the first conductive layer according to an excitation feedback signal of the second conductive layer. This is an easy-to-implement solution.

[0040] The control method of the electronic device provided in the embodiment of the application generates the unlocking instruction only when the identity recognition signal and the impedance signal are both passed. If the impedance signal is not passed, the unlocking instruction is not generated, and the electronic device will not have the unlocking operation. The living body recognition can be implemented, and the risk of directly unlocking the electronic device by the false fingerprints and the like is reduced.

[0041] In a possible implementation, before the fingerprint recognition module collects the identity recognition signal, the control method further includes: determining whether the user touches the first conductive layer according to the excitation feedback signal of the second conductive layer; and the fingerprint recognition module collecting the identity recognition signal includes: collecting the identity recognition signal by the fingerprint recognition module in a case where the excitation feedback signal is less than a set value; and / or the bioelectric signal collection module collecting the lead detection excitation signal of the first conductive layer and the excitation feedback signal of the second conductive layer to generate the impedance signal includes: collecting the lead detection excitation signal of the first conductive layer and the excitation feedback signal of the second conductive layer by the bioelectric signal collection module to generate the impedance signal in a case where the excitation feedback signal is less than the set value.

[0042] By detecting whether the user touches the first conductive layer before collecting the identity recognition signal and the impedance signal, the identity recognition signal and the impedance signal are collected after it is determined that the user touches the first conductive layer. If the user does not touch the first conductive layer, the identity recognition signal and the impedance signal are not collected, so that the power consumption of the electronic device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0043] FIG. 1 is a structural schematic diagram of an electronic device provided in an embodiment of the application;

[0044] FIG. 2A and FIG. 2B are structural schematic diagrams of an electronic device provided in an embodiment of the application;

[0045] FIG. 3A and FIG. 3B are structural schematic diagrams of another electronic device provided in an embodiment of the application;

[0046] FIG. 4 is a structural schematic diagram of still another electronic device provided in an embodiment of the application;

[0047] FIG. 5 is a structural schematic diagram of still another electronic device provided in an embodiment of the application;

[0048] FIG. 6 is a structural schematic diagram of a detection assembly provided in an embodiment of the application;

[0049] FIG. 7A and FIG. 7B are structural schematic diagrams of a detection assembly provided in an embodiment of the application;

[0050] FIG. 8 is a structural schematic diagram of a detection assembly provided in an embodiment of the application;

[0051] FIG. 9 is a structural schematic diagram of a detection assembly provided in an embodiment of the application;

[0052] FIG. 10A and FIG. 10B are structural schematic diagrams of a detection assembly according to an embodiment of the present application;

[0053] FIG. 11A and FIG. 11B are architecture diagrams of an electronic device according to an embodiment of the present application;

[0054] FIG. 12A and FIG. 12B are structural schematic diagrams of a touch display screen according to an embodiment of the present application;

[0055] FIG. 13A and FIG. 13B are structural schematic diagrams of another electronic device according to an embodiment of the present application;

[0056] FIG. 14 is a flowchart of a control method of an electronic device according to an embodiment of the present application;

[0057] FIG. 15 is a flowchart of another control method of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0059] Hereinafter, the terms "second", "first", and the like are only used for description convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "second", "first", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0060] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left", "right", and the like can include but not limited to the orientation defined by the relative placement of the components in the drawings. It should be understood that these directional terms can be relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the placement of the components in the drawings.

[0061] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium. In addition, the term "coupling" can be direct electrical connection, or indirect electrical connection through an intermediate medium. The term "contact" can be direct contact, or indirect contact through an intermediate medium.

[0062] In the embodiments of this application, "and / or" describes the association relationship of associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0063] The embodiments of this application provide an electronic device, which is, for example, a consumer electronic product, a household electronic product, a vehicle-mounted electronic product, or a financial electronic product. The consumer electronic product is, for example, a mobile phone, a pad, a notebook computer, an electronic reader, a personal computer (PC), a personal digital assistant (PDA), a desktop display, a smart wearable product (for example, a smart watch, a smart bracelet, a watch dial), a virtual reality (VR) electronic device, an augmented reality (AR) electronic device, a drone, and the like. The household electronic product is, for example, a smart door lock, a television, a refrigerator, a charging household small appliance (for example, a soybean milk machine, a sweeping robot), and the like. The vehicle-mounted electronic product is, for example, a vehicle-mounted navigator, a vehicle-mounted DVD, and the like. The financial electronic product is, for example, an ATM machine, a self-service electronic device, and the like.

[0064] The embodiments of this application do not specially limit the specific form of the above-mentioned electronic device, and the following embodiments are exemplarily described by taking a watch as an example.

[0065] FIG. 1 is a structural schematic diagram of an electronic device provided by an embodiment of this application.

[0066] As shown in FIG. 1, an embodiment of this application provides an electronic device 1, which is an electronic device with a biological information detection function. The electronic device 1 is provided with a detection assembly 10, and the biological information detection function is realized through the detection assembly 10.

[0067] For example, the electronic device 1 has one or more of a fingerprint identification function, a palmprint identification function, an electrocardiogram (ECG) acquisition function, and a photo plethysmography (PPG) acquisition function. Then, the detection assembly 10 has one or more of the above-mentioned functions.

[0068] FIGS. 2A and 2B are structural schematic diagrams of an electronic device provided by an embodiment of this application.

[0069] In some embodiments, as shown in FIG. 2A, the detection component 10 in the electronic device 1 is a texture recognition module, and the electronic device 1 has an identity recognition function. As shown in FIG. 2A, the texture recognition module can be an under-screen texture recognition module. Alternatively, as shown in FIG. 2B, the texture recognition module can be a side texture recognition module.

[0070] In this case, the electronic device 1 only includes the texture recognition module, and the identity of the user can be determined through the texture recognition module, but the electronic device 1 does not have a bioelectric signal acquisition function.

[0071] FIGS. 3A and 3B are structural schematic diagrams of another electronic device provided by the embodiments of the present application.

[0072] In some embodiments, as shown in FIG. 3A, the detection component 10 in the electronic device 1 is a camera, and the electronic device 1 has an identity recognition function. As shown in FIG. 3A, the identity information can be recognized by scanning the hand vein pattern through the camera. Alternatively, as shown in FIG. 3B, the identity information can be recognized by scanning the palm print texture through the camera.

[0073] In this case, the electronic device 1 can determine the identity of the user through the camera, but the electronic device 1 does not have a bioelectric signal acquisition function, and the volume of the lens module needs to be increased, which is a complex solution and is not suitable for miniaturization.

[0074] FIG. 4 is a structural schematic diagram of yet another electronic device provided by the embodiments of the present application.

[0075] In some embodiments, as shown in FIG. 4, the detection component 10 in the electronic device 1 includes a texture recognition module and an ECG acquisition module, and the texture recognition module and the ECG acquisition module are independently arranged. For example, the texture recognition module and the ECG acquisition module are arranged on the circuit board in the electronic device 1, and there is no connection relationship between the texture recognition module and the ECG acquisition module. The electronic device 1 has an identity recognition function and a bioelectric signal acquisition function.

[0076] In this case, the electronic device 1 has both the identity recognition function and the bioelectric signal acquisition function, but the texture recognition module and the ECG acquisition module are independently arranged. The user needs to place the hand on different modules to measure different biological information, which results in that the electronic device 1 cannot have high integration and a simple appearance, and increases the user's learning cost for measurement. Moreover, the electronic device 1 does not support the bioelectric measurement active identity recognition function. That is, the electronic device 1 does not support the function of further confirming the identity information through the bioelectric signal to perform live body recognition.

[0077] FIG. 5 is a structural schematic diagram of yet another electronic device provided by the embodiments of the present application.

[0078] In some embodiments, as shown in FIG. 5, the detection assembly 10 in the electronic device 1 is a module with both the fingerprint identification function and the bioelectric signal acquisition function. Alternatively, it is understood that the detection assembly 10 is a new module structure after the fingerprint identification module and the bioelectric signal acquisition module are integrated together.

[0079] In this case, the electronic device 1 has both the identity identification function and the bioelectric signal acquisition function, and the fingerprint identification module and the bioelectric signal acquisition module are integrated together, so that the electronic device 1 has high integration and simple appearance, and the user measurement learning cost is reduced.

[0080] FIG. 6 is a structural schematic diagram of a detection assembly provided in an embodiment of the present application.

[0081] The embodiment of the present application provides a detection assembly 10, as shown in FIG. 6, which includes a detection module 11 and a bioelectric signal acquisition module 12. The detection module 11 has both the fingerprint identification function and the bioelectric signal acquisition function, and the identity information and the bioelectric information can be obtained through the detection module 11. The bioelectric signal acquisition module 12 can obtain the bioelectric signal representing the user's bioinformation by collecting and processing the bioelectric information.

[0082] For example, the detection module 11 includes a fingerprint identification module 111 and a first conductive layer 112 which are stacked. For example, the detection module 11 further includes a bioelectric signal acquisition pin which is coupled with the first conductive layer 112, and the detection module 11 is coupled with the bioelectric signal acquisition module 12 through the bioelectric signal acquisition pin.

[0083] For example, the first conductive layer 112 is located on the surface of the detection assembly 10 and used to contact the user. The single conductive layer structure of the first conductive layer 112 serves as a bio-detection electrode, the impedance of the entire detection path is low, and the anti-external interference ability is strong.

[0084] The fingerprint identification module 111 is used to detect the identity identification signal. The fingerprint identification module 111 includes an acquisition side and a back side. The user's finger or other body part to be detected is placed on the acquisition side of the fingerprint identification module 111, so that the fingerprint identification module 111 can collect the identity identification signal. The user's hand is placed on the back side of the fingerprint identification module 111, so that the fingerprint identification module 111 cannot collect the user information. The fingerprint identification module 111 can not include the back side, and the fingerprint identification module 111 can include one or more acquisition sides. For example, in FIG. 6, the side where the finger is located is the acquisition side of the fingerprint identification module 111, and the side opposite to the side where the finger is located is the back side of the fingerprint identification module 111. The first conductive layer 112 is arranged on the acquisition side of the fingerprint identification module 111.

[0085] The structure of the texture identification module 111 is not limited in the embodiments of the present application, and the texture identification module in the related art is applicable to the embodiments of the present application. For example, the texture identification module 111 can be used to detect the fingerprint and / or palmprint of a user. For example, the texture identification module 111 is a fingerprint identification module. The texture identification module 111 identifies the identity of a user by collecting the fingerprint information of the user.

[0086] In some embodiments, the texture identification module 111 includes a plurality of detection units. For example, the plurality of detection units are arranged in an array, and the plurality of detection units can be used to detect the texture information of a user.

[0087] For example, the texture identification module 111 is a capacitive fingerprint identification module. For example, the texture identification module 111 is a self-capacitance fingerprint identification module. Alternatively, for example, the texture identification module 111 is a mutual-capacitance fingerprint identification module. The structure and principle of the capacitive fingerprint identification module are mature technologies in the industry, and the embodiments of the present application will not be described in detail.

[0088] FIGS. 7A and 7B are structural schematic diagrams of a detection assembly provided by the embodiments of the present application.

[0089] For example, as shown in FIG. 7A, the texture identification module 111 includes a texture identification chip 21 and a packaging layer 22. The texture identification chip 21 includes a plurality of detection units, which are used to detect an identity identification signal.

[0090] For example, the texture identification chip 21 is a self-capacitance fingerprint identification module, and the detection unit includes a sensor and a detection electrode. After the texture identification chip 21 contacts the detection module 11, the ridges of the finger directly contact the detection module 11, and the detection unit can detect the capacitance between the detection electrode and the ridges: a fixed capacitance C 固 , and output a ridge voltage V 纹脊 . After the texture identification chip 21 contacts the detection module 11, there is a gap between the valleys of the finger and the detection module 11, and the detection unit can detect the capacitance between the detection electrode and the valleys: a fixed capacitance C 固 + an air capacitance C 空气 , and output a valley voltage V 纹谷 .

[0091] The packaging layer 22 covers the texture identification chip 21, performs water-oxygen barrier packaging on the texture identification chip 21, and protects the texture identification chip 21. For example, the material of the packaging layer 22 is an insulating dielectric material. According to different application scenarios, the material of the packaging layer 22 can be a transparent insulating dielectric material or a non-transparent dielectric material. The packaging layer 22 can protect the core of the texture identification chip 21, enhance the reliability of the texture identification chip 21, and act as a base material of the first conductive layer 112 to carry the first conductive layer 112.

[0092] In the embodiments of the present application, the packaging layer 22 is away from the side of the fingerprint identification chip 21, and the first conductive layer 112 is arranged on the side of the fingerprint identification module 111.

[0093] In some embodiments, the fingerprint identification module 111 further comprises a conversion board 23. The conversion board 23 is coupled with the fingerprint identification chip 21, and is used for transmitting the identity identification signal (V 纹脊 and V 纹谷 ) detected by the detection unit to the processing unit of the electronic device 1. For example, the conversion board 23 can convert the pins of the detection module 11 into a connector for connecting the detection module 11 with the mainboard or other components of the electronic device 1.

[0094] In some embodiments, the first conductive layer 112 is arranged on the collection side of the fingerprint identification module 111, and the first conductive layer 112 serves as a bioelectric signal collection electrode.

[0095] For example, the first conductive layer 112 is arranged on the side of the packaging layer 22 away from the fingerprint identification chip 21. The first conductive layer 112 can cover part of the packaging layer 22, and the first conductive layer 112 can also cover the entire packaging layer 22. At this time, the first conductive layer 112 can coincide with the packaging layer 22, and the shape of the first conductive layer 112 can be larger than the shape of the packaging layer 22. That is, the projection of the packaging layer 22 can coincide with the projection of the first conductive layer 112, and the projection of the packaging layer 22 can also be located within the projection of the first conductive layer 112.

[0096] In some embodiments, the resistivity of the first conductive layer 112 is 1×10 -2 Ω·m~1×10 6 Ω·m. For example, the resistivity of the first conductive layer 112 is 1×10 -2 Ω·m, 1×10 -1 Ω·m, 1×10Ω·m, 1×10 2 Ω·m, 1×10 3 Ω·m, 1×10 4 Ω·m, 1×10 5 Ω·m or 1×10 6 Ω·m, etc.

[0097] The first conductive layer 112 arranged on the collection side of the fingerprint identification module 111 can interfere with the performance of the fingerprint identification module 111. By setting the resistivity of the first conductive layer 112 to 1×10 -2 Ω·m~1×10 6The electric resistivity of the first conductive layer 112 is in the range of 10-6Ω·m to 10-2Ω·m, so that the first conductive layer 112 hardly blocks the identification signal from the line identification module 111. This can avoid reducing the signal-to-noise ratio of the line identification module 111 due to too small electric resistivity, and affecting the accuracy of line identification. Also, this can avoid too large electric resistivity leading to too large attenuation of bioelectric signals, and affecting the accuracy of bioelectric signals. Thus, the compatibility of identity information identification and bioelectric signal detection is optimized, and the two-in-one fusion of the modules with different detection principles of identity information identification and bioelectric signal detection is realized.

[0098] In the embodiments of the present application, the electric resistivity of the first conductive layer 112 can be adjusted by controlling the thickness, structure, doping, etc. of the first conductive layer 112.

[0099] In some embodiments, the thickness of the first conductive layer 112 is less than 30 um. For example, the thickness of the first conductive layer 112 is 30 um, 25 um, 20 um, 15 um, 10 um, 5 um, etc.

[0100] Then, in the case of improving the accuracy of bioelectric signals, the influence on the accuracy of the line identification module 111 is reduced as much as possible.

[0101] In some embodiments, the material of the first conductive layer 112 includes carbide. For example, the material of the first conductive layer 112 includes one or more of tungsten carbide, chromium carbide, silicon carbide, etc.

[0102] In other embodiments, the material of the first conductive layer 112 includes conductive oxide. For example, the material of the first conductive layer 112 includes one or more of titanium oxide, zinc oxide, etc.

[0103] In still other embodiments, the material of the first conductive layer 112 includes metal nitride. For example, the material of the first conductive layer 112 includes gallium nitride, etc.

[0104] For example, the doping elements can include one or more of silicon, magnesium, nitrogen, etc.

[0105] In some embodiments, the first conductive layer 112 is a single film layer structure, so as to simplify the structure of the first conductive layer 112. In other embodiments, the first conductive layer 112 is a laminated structure, and the materials of the film layers can be different, so as to optimize the electric resistivity of the first conductive layer 112.

[0106] In some embodiments, as shown in FIG. 7A, the first conductive layer 112 is a block structure of an integral layer. This can increase the collection area of the first conductive layer 112, increase the amount of bioelectric signal collection, improve signal stability, and thus improve the accuracy of the bioelectric signal detection result.

[0107] In some embodiments, the first conductive layer 112 includes a plurality of electrode blocks arranged in an array. For example, the electrode blocks and the detection units in the texture recognition module 111 are arranged in a staggered manner (the projections do not coincide), so as to reduce the interference of the electrode blocks on the detection results of the texture recognition module 111.

[0108] In some embodiments, as shown in FIG. 7A, the first conductive layer 112 is located on the surface of the detection assembly 10, and is used to contact the user. That is, when the user uses the detection assembly 10, the user directly contacts the first conductive layer 112 with the body part to be detected such as a finger.

[0109] In the embodiments of the present application, as shown in FIG. 7A, the bioelectric signal acquisition module 12 may, for example, include an analog front end (AFE), and the bioelectric signal acquisition module 12 may, for example, acquire bioelectric signals such as blood pressure, heart rate, electrocardiogram, electromyogram, and blood oxygen, so as to enable the user to know more about the health information of his / her own body, and help the user to maintain a good health state.

[0110] In some embodiments, the bioelectric signal acquisition module 12 is coupled with the first conductive layer 112. The present application does not limit the coupling manner of the bioelectric signal acquisition module 12 and the first conductive layer 112, and the coupling of the two can be realized.

[0111] For example, as shown in FIG. 7A, the packaging layer 22 includes conductive holes, and the conductive holes are respectively coupled with the first conductive layer 112 and the circuit in the texture recognition chip 21. The bioelectric signal acquisition module 12 is coupled with the adapter plate 23, and is coupled to the first conductive layer 112 through the texture recognition chip 21 and the conductive holes, so as to realize the coupling of the bioelectric signal acquisition module 12 and the first conductive layer 112.

[0112] Here, the bioelectric signal acquisition module 12 and the adapter plate 23 can be directly coupled, or the bioelectric signal acquisition module 12 and the adapter plate 23 can be indirectly coupled. For example, the bioelectric signal acquisition module 12 is coupled with the circuit board of the electronic device 1, and the adapter plate 23 is also coupled with the circuit board of the electronic device 1, so as to realize the coupling of the bioelectric signal acquisition module 12 and the adapter plate 23. That is, the coupling of the first conductive layer 112 and the bioelectric signal acquisition module 12 is realized through a plating process. That is, the coupling of the first conductive layer 112 and the bioelectric signal acquisition module 12 is realized through a perforation process.

[0113] Alternatively, as shown in FIG. 7B, the detection assembly 10 includes interconnection lines, which are arranged on the side of the texture identification module 111 and coupled with the first conductive layer 112 and the adapter plate 23 respectively. The bioelectric signal acquisition module 12 is coupled with the adapter plate 23 and coupled with the first conductive layer 112 through the interconnection lines. That is, the coupling between the first conductive layer 112 and the bioelectric signal acquisition module 12 is achieved through a plating process.

[0114] The detection assembly 10 provided by the embodiments of the present application fuses the texture identification module 111 and the first conductive layer 112 as the bioelectrode, so that one detection assembly 10 has the functions of identity recognition and bioelectric signal acquisition. Therefore, the user can place the hand or other detection part on the detection assembly 10 to obtain the identity recognition signal and the bioelectric signal, and realize the functions of unlocking and health measurement. Moreover, the bioelectric signal can be directly used for member identification based on the identity recognition signal, and the health record is actively managed (the bioelectric signal is directly matched to the information of the detected person). After the detection assembly 10 with multiple functions is applied to the electronic device 1, the effect of 1+1>2 is realized on the basis of improving the integration of the electronic device 1.

[0115] FIG. 8 is a structural schematic diagram of a detection assembly provided by an embodiment of the present application.

[0116] In some embodiments, as shown in FIG. 8, the detection assembly 10 further includes an operational amplifier 13. The input end of the operational amplifier 13 is coupled with the first conductive layer 112, and the output end of the operational amplifier 13 is coupled with the bioelectric signal acquisition module 12.

[0117] The manner in which the input end of the operational amplifier 13 is coupled with the first conductive layer 112 can refer to the related description of the coupling manner between the bioelectric signal acquisition module 12 and the first conductive layer 112, which is not described herein again.

[0118] The structure of the operational amplifier 13 is not limited in the embodiments of the present application, and the operational amplifier in the related art is applicable to the embodiments of the present application.

[0119] The operational amplifier 13 has the characteristics of high input impedance and low noise. By arranging the operational amplifier 13 in front of the bioelectric signal acquisition module 12, the input impedance of the circuit can be significantly improved, the parasitic parameters of the line can be reduced, the attenuation of the bioelectric signal output by the first conductive layer 112 can be obviously reduced, the anti-interference ability of the circuit can be improved, and the quality (signal-to-noise ratio) of the bioelectric signal can be improved.

[0120] In some embodiments, as shown in FIG. 8, the detection assembly 10 further includes a pre-detection module 14, which is used to detect whether the user touches the first conductive layer 112.

[0121] By setting the pre-detection module 14 in the detection assembly 10, it can be judged by the pre-detection module 14 whether the user's finger and the body part to be detected are in contact with the touch detection assembly 10. In this way, the power consumption can be reduced by starting the identity recognition signal collection and the bioelectric signal collection after the detection assembly 10 detects the presence of the body part to be detected.

[0122] For example, the pre-detection module 14 includes a lead detection module. The pre-detection module 14 includes an excitation source 141 and an impedance matching network 142, which is coupled between the excitation source 141 and the first conductive layer 112.

[0123] The excitation source 141 can be a signal source such as a current source, and the impedance matching network 142 is used to match the impedance between the excitation source 141 and the first conductive layer 112. The excitation source 141 generates a lead detection excitation signal, which is coupled into the bioelectric signal detection channel through the impedance matching network 142.

[0124] FIG. 9 is a structural schematic diagram of a detection assembly provided in an embodiment of the present application.

[0125] In some embodiments, the detection assembly 10 further includes a second conductive layer 15, which is coupled with the bioelectric signal collection module 12.

[0126] The first conductive layer 112 is used to contact the user, and the second conductive layer 15 is also used to contact the user. For example, the first conductive layer 112 can be understood as a finger electrode, and the second conductive layer 15 can be understood as a body electrode. The present application does not limit the positional relationship between the second conductive layer 15 and the detection module 11, and the first conductive layer 112 and the second conductive layer 15 can directly contact the user.

[0127] The present application does not specially limit the material, thickness, resistivity and other characteristics of the second conductive layer 15, and the structure of the body electrode in the related art is applicable to the present application.

[0128] When the above detection assembly 10 provided in the present application is applied to the electronic device 1 provided in the present application, the detection assembly 10 can be coupled with the processor in the electronic device 1, and the signals output by the bioelectric signal collection module 12 and the texture recognition module 111 are processed by the processor. In addition, one or more of the bioelectric signal collection module 12, the operational amplifier 13 and the pre-detection module 14 in the detection assembly 10 can be coupled with the circuit board, and the signal switching is realized by the circuit board.

[0129] On this basis, the first conductive layer 112 and the second conductive layer 15 in the detection assembly 10 are exposed to the surface of the electronic device 1, so that the user can directly touch the first conductive layer 112 and the second conductive layer 15. The first conductive layer 112 and the second conductive layer 15 in the detection assembly 10 can be entirely exposed to the surface of the electronic device 1, or the first conductive layer 112 and the second conductive layer 15 in the detection assembly 10 can be partially exposed to the surface of the electronic device 1.

[0130] In some embodiments, the second conductive layer 15 is the back shell of the electronic device 1. For example, the second conductive layer 15 is the back shell of a watch, and after the user wears the watch, the second conductive layer 15 can be directly in contact with the user's wrist.

[0131] FIGS. 10A and 10B are structural schematic diagrams of a detection assembly provided in an embodiment of the present application.

[0132] In some embodiments, as shown in FIG. 10A, the detection module 11 further includes an insulating medium layer 113, which is arranged on the side of the first conductive layer 112 away from the texture identification module 111. In this case, the difference between the detection assembly 10 shown in FIG. 6 is that the insulating medium layer 113 in the detection assembly 10 is used to contact the user.

[0133] The first conductive layer 112, the insulating medium layer 113, and the user can constitute a capacitive detection electrode, and the biological signal can still be detected. At this time, the insulating medium layer 113 is arranged above the first conductive layer 112, and can protect the first conductive layer 112. On the one hand, the requirement for the wear resistance of the material of the first conductive layer 112 can be reduced, and the requirement for the material selection can be reduced. On the other hand, the interference of the active doping material in the first conductive layer 112 with the reaction of the user's sweat can be reduced, and the signal quality can be improved.

[0134] As shown in FIG. 10B, the detection assembly 10 can also include an operational amplifier 13 and a pre-detection module 14, and the working principle is the same as described above, which will not be described here again.

[0135] FIGS. 11A and 11B are architectural diagrams of an electronic device provided in an embodiment of the present application.

[0136] The embodiment of the present application further provides an electronic device 1, which is a side detection device. As shown in FIG. 11A, the electronic device 1 includes the above-mentioned detection assembly 10 provided in the embodiment of the present application, a display screen, and a frame body, the frame body includes an opening, and the opening exposes part or all of the detection assembly 10. The electronic device 1 can further include a processor, and the detection assembly 10 is coupled with the processor, for example, the bioelectric signal acquisition module 12 in the detection assembly 10 can be coupled with the processor.

[0137] The detection assembly 10 can be convex relative to the frame. The detection assembly 10 can also be concave relative to the frame. The detection assembly 10 can also be flush with the frame. FIG. 11A only illustrates the detection assembly 10 as convex relative to the frame.

[0138] Of course, the detection assembly 10 can also be integrated in the electronic device 1 in other manners, as long as the user can touch the first conductive layer 112 (or the insulating medium layer 113) and the second conductive layer 15.

[0139] In some embodiments, as shown in FIG. 11A, the first conductive layer 112 is exposed to the surface of the electronic device 1.

[0140] In some other embodiments, as shown in FIG. 11B, the insulating medium layer 113 is exposed to the surface of the electronic device 1.

[0141] The electronic device 1 provided by the embodiments of the present application includes the detection assembly 10 that combines the functions of bioelectric signal detection and identity recognition signal detection. The user places the hand or other detection part on the detection assembly 10, and the identity recognition signal and the bioelectric signal can be obtained. The electronic device 1 has high integration and simple appearance while having the functions of identity recognition and bioelectric signal acquisition.

[0142] FIGS. 12A and 12B are structural schematic diagrams of a touch display screen provided by the embodiments of the present application.

[0143] The embodiments of the present application also provide a touch display screen. As shown in FIG. 12A, the touch display screen includes a touch layer, a first conductive layer 112, and a bioelectric signal acquisition pin. In some embodiments, the touch display screen also includes a display screen, and the touch layer is arranged on the light-emitting side of the display screen.

[0144] The touch layer includes a texture recognition module 11, and the texture recognition module 11 is used to detect an identity recognition signal. For example, a separate texture recognition module 11 can be arranged in the touch layer. Alternatively, for example, a part of the touch layer can have the functions of touch detection and texture detection. For example, the density of the electrode array of the part is greater than the density of the electrode array of the remaining part that only has the function of touch detection.

[0145] The first conductive layer 112 is arranged on the side of the touch layer facing the light-emitting side of the touch display screen, and the resistivity of the first conductive layer 112 is 1 × 10 -2 Ω·m to 1 × 10 6 Ω·m. The material of the first conductive layer 112 is a transparent conductive material. For the characteristics of the first conductive layer 112, reference can be made to the description of the first conductive layer 112 in the above examples, which will not be described here again.

[0146] The first conductive layer 112 is stacked with the fingerprint identification module, and the first conductive layer 112 can cover part of the touch layer. The first conductive layer 112 can also cover the entire touch layer.

[0147] The bioelectric signal collection pin is coupled with the first conductive layer 112, and is used to transmit the signal of the first conductive layer 112. The bioelectric signal collection pin can be a part of structure in the first conductive layer 112, and the bioelectric signal collection pin can also be a pin structure arranged in the non-display area of the display screen. The embodiments of the present application do not limit this, and can be used to lead out the signal of the first conductive layer 112.

[0148] At this time, the first conductive layer 112 is exposed on the surface of the touch display screen. For example, the first conductive layer 112 serves as a finger electrode and a surface protective layer of the touch display screen.

[0149] The touch display screen provided by the embodiments of the present application integrates the fingerprint identification module 111 for detecting the identity recognition signal and the first conductive layer 112 for detecting the bioelectric signal, so that the touch display screen has the functions of touch recognition, identity recognition and bioelectric signal collection, which is beneficial to improve the integration of the electronic device 1 including the touch display screen.

[0150] In some embodiments, as shown in FIG. 12B, the touch display screen further includes an insulating medium layer 113, which is arranged on the side of the first conductive layer 112 away from the fingerprint identification module 111.

[0151] In this case, the first conductive layer 112 can only cover the fingerprint identification module 111, and the first conductive layer 112 can also cover the entire touch layer. The insulating medium layer 113 can only cover the first conductive layer 112, and the insulating medium layer 113 can also cover the entire touch layer.

[0152] At this time, the insulating medium layer 113 is exposed on the surface of the touch display screen. For example, the insulating medium layer 113 serves as a capacitive medium layer of a capacitive electrode and a surface protective layer of the touch display screen.

[0153] The first conductive layer 112, the insulating medium layer 113 and the user can constitute a capacitive detection electrode, and still can detect the bioelectric signal. At this time, the insulating medium layer 113 is arranged above the first conductive layer 112, and can protect the first conductive layer 112. On the one hand, the requirement for the wear resistance of the material of the first conductive layer 112 can be reduced, and the material selection requirement can be reduced. On the other hand, the interference of the active doping material in the first conductive layer 112 with the user's sweat after the reaction can be reduced, and the signal quality can be improved.

[0154] FIGS. 13A and 13B are architecture diagrams of an electronic device provided by an embodiment of the present application.

[0155] The embodiment of the present application further provides an electronic device 1, which is an under-screen detection device. As shown in FIG. 13A, the electronic device 1 comprises the above-mentioned touch display screen and the processor provided by the embodiment of the present application, and the touch display screen is coupled to the processor and controlled by the processor.

[0156] In some embodiments, the electronic device 1 further comprises one or more of the bioelectric signal acquisition module 12, the operational amplifier 13 and the pre-detection module 14, and the bioelectric signal acquisition module 12, the operational amplifier 13 and the pre-detection module 14 realize the circuit connection relationship shown in FIG. 9 inside the electronic device 1.

[0157] In some embodiments, as shown in FIG. 13A, the first conductive layer 112 is exposed on the surface of the electronic device 1. For example, the first conductive layer 112 serves as a finger electrode and a surface protective layer of the electronic device 1.

[0158] In another embodiment, as shown in FIG. 13B, the insulating medium layer 113 is exposed on the surface of the electronic device 1. For example, the insulating medium layer 113 serves as a capacitive medium layer of a capacitive electrode and a surface protective layer of the electronic device 1. FIG. 13A and FIG. 13B are structural schematic diagrams of another electronic device provided by the embodiment of the present application.

[0159] FIG. 14 is a flow chart of a control method of an electronic device provided by the embodiment of the present application.

[0160] The embodiment of the present application further provides a control method of an electronic device 1, which comprises the above-mentioned texture identification module 111, the first conductive layer 112, the second conductive layer 15 and the bioelectric signal acquisition module 12.

[0161] As shown in FIG. 14, the control method of the electronic device comprises the following steps.

[0162] The texture identification module 111 acquires an identity recognition signal. The method for acquiring the identity recognition signal by the texture identification module 111 can adopt the method in the related art, which is not limited in the embodiment of the present application.

[0163] The bioelectric signal acquisition module 12 acquires signals of the first conductive layer 112 and the second conductive layer 15 to generate a bioelectric signal.

[0164] For example, the electrocardiosignal collection system includes the bioelectric signal collection module 12, the first conductive layer 112, and the second conductive layer 15. The user's heart is equivalent to a signal source, the first conductive layer 112 transmits a first collection signal to the bioelectric signal collection module 12, and the second conductive layer 15 transmits a second collection signal to the bioelectric signal collection module 12. By processing (e.g., differencing) the first collection signal and the second collection signal, a voltage difference waveform signal can be obtained. The bioelectric signal collection module 12 further performs high-frequency filtering on the voltage difference waveform signal to obtain a low-frequency bioelectric signal.

[0165] The steps of the fingerprint recognition module 111 collecting the identity recognition signal and the steps of the bioelectric signal collection module 12 generating the bioelectric signal are not limited in sequence, and can be performed synchronously or sequentially.

[0166] In some embodiments, before the fingerprint recognition module 111 collects the identity recognition signal, the control method further includes: determining whether the bioelectric signal passes, and only when the bioelectric signal passes, the fingerprint recognition module 111 collects the identity recognition signal. When the bioelectric signal does not pass, the fingerprint recognition module 111 does not collect the identity recognition signal.

[0167] Determining whether the bioelectric signal passes is equivalent to a process of excluding fake fingers. After excluding fake fingers, fingerprint recognition is performed, which can further reduce the power consumption of the electronic device 1.

[0168] When both the identity recognition signal and the bioelectric signal pass, a unlocking instruction is generated.

[0169] For example, when a finger contacts the fingerprint recognition module 111 to attempt to unlock the electronic device 1, the bioelectric signal collection module 12 simultaneously detects the electrocardio feature. After the identity recognition signal collected by the fingerprint recognition module 111 passes, the bioelectric signal generated by the bioelectric signal collection module 12 also passes, and only then a unlocking instruction is generated. After the identity recognition signal collected by the fingerprint recognition module 111 passes, the bioelectric signal generated by the bioelectric signal collection module 12 does not pass, and no unlocking instruction is generated. For example, by comparing the bioelectric signal with a preset bioelectric signal, if the matching degree meets a preset value, it is determined that the bioelectric signal generated by the bioelectric signal collection module 12 passes. This step can be performed by a processor in the electronic device 1, for example.

[0170] If a fake finger made of a rubber model contacts the detection assembly 10, the bioelectric signal collected is an abnormal bioelectric signal, and the bioelectric signal is greatly different from the preset bioelectric signal, so the bioelectric signal does not pass. Therefore, even if the identity recognition signal collected by the fingerprint recognition module 111 passes, the electronic device 1 will not have a unlocking operation.

[0171] The control method of the electronic device provided by the application embodiment generates the unlocking instruction only when the identity recognition signal and the bioelectric signal are both passed. If the bioelectric signal is not passed, the unlocking instruction will not be generated, and the electronic device 1 will not have an unlocking operation. The living body recognition can be realized, and the risk of directly unlocking the electronic device 1 by a false fingerprint and the like is reduced.

[0172] In some embodiments, before the bioelectric signal is generated by the fingerprint recognition module 111 and the bioelectric signal acquisition module 12, the control method further comprises: determining whether the user touches the first conductive layer 112.

[0173] In the case where the user touches the first conductive layer 112, the fingerprint recognition module 111 acquires the identity recognition signal. In the case where the user does not touch the first conductive layer 112 and the second conductive layer 15, the fingerprint recognition module 111 does not acquire the identity recognition signal.

[0174] In the case where the user touches the first conductive layer 112, the bioelectric signal acquisition module 12 acquires the signal of the first conductive layer 112 and the signal of the second conductive layer 15 to generate the bioelectric signal. In the case where the user does not touch the first conductive layer 112 and the second conductive layer 15, the bioelectric signal acquisition module 12 does not generate the bioelectric signal.

[0175] For example, whether the user touches the first conductive layer 112 can be determined by acquiring the signal by the fingerprint recognition module 111.

[0176] For example, the electronic device 1 can further comprise a pre-detection module 14, and whether the user touches the first conductive layer 112 is determined by the pre-detection module 14.

[0177] As shown in FIG. 9, the detection assembly 10 and the human body form a detection path: the pre-detection module 14-the first conductive layer 112-the finger-the human body-the wrist-the second conductive layer 15-the bioelectric signal acquisition module 12.

[0178] For example, the pre-detection module 14 is a lead detection module, and the lead detection excitation signal is sent to the first conductive layer 112 by the excitation source 141, and the lead detection excitation signal is coupled to the first conductive layer 112 by the impedance matching network 142. According to the detection result fed back by the second conductive layer 15, it can be determined whether the user touches the first conductive layer 112.

[0179] In the case where the finger contacts the first conductive layer 112, the contact resistance between the finger and the first conductive layer 112 is very small. In the case where the finger does not contact the first conductive layer 112, the contact resistance between the finger and the first conductive layer 112 is very large. It is equivalent to that a “detection resistance” exists at the first conductive layer 112 in the detection path.

[0180] The excitation source 141 sends a lead detection excitation signal to the first conductive layer 112, and after passing through the contact resistance, outputs a feedback signal (feedback voltage) to the bioelectric signal acquisition module 12 from the second conductive layer 15. The feedback voltage is proportional to the impedance of the "detection resistance" (the greater the impedance of the "detection resistance", the greater the feedback voltage). By comparing the feedback voltage detected by the bioelectric signal acquisition module 12 with the set value, if the feedback voltage is greater than the set value, it is determined that the user does not touch the first conductive layer 112. If the feedback voltage is less than or equal to the set value, it is determined that the user touches the first conductive layer 112.

[0181] By detecting whether the user touches the first conductive layer 112 before acquiring the identity recognition signal and the bioelectric signal. After determining that the user touches the first conductive layer 112, the identity recognition signal and the bioelectric signal are acquired. If the user does not touch the first conductive layer 112, the identity recognition signal and the bioelectric signal are not acquired. In this way, the power consumption of the electronic device 1 can be reduced.

[0182] In some embodiments, the control method of the electronic device further includes: in the case that the identity recognition signal and the bioelectric signal are both passed, generating a biological detection report matched with the identity information.

[0183] The electronic device 1 provided by the embodiments of the present application can directly determine the user information of the detected user and the biological information of the detected user. In the case that the identity recognition signal and the bioelectric signal are both passed, the identity information of the detected user and the bioelectric information are matched, and the electronic device 1 can directly generate a biological detection report matched with the identity information. The biological detection report directly includes the identity information of the user.

[0184] FIG. 15 is a flow chart of another control method of an electronic device provided by the embodiments of the present application.

[0185] The embodiments of the present application also provide a control method of an electronic device, which includes the above-mentioned texture recognition module 111, the first conductive layer 112, the pre-detection module 14, the second conductive layer 15, and the bioelectric signal acquisition module 12.

[0186] As shown in FIG. 15, the control method of the electronic device includes:

[0187] The pre-detection module 14 sends a lead detection excitation signal to the first conductive layer 112.

[0188] The bioelectric signal acquisition module 12 acquires the lead detection excitation signal of the first conductive layer 112 and the excitation feedback signal of the second conductive layer 15, and generates an impedance signal.

[0189] For example, after the pre-detection module 14 sends the lead detection excitation signal to the first conductive layer 112, the excitation feedback signal (feedback voltage) is output from the second conductive layer 15 to the bioelectric signal acquisition module 12 through the above-mentioned "detection resistor". The bioelectric signal acquisition module 12 processes (for example, difference) the excitation feedback signal and the lead detection excitation signal transmitted by the first conductive layer 112, and can obtain a voltage difference waveform signal. The bioelectric signal acquisition module 12 further performs low-frequency filtering processing on the voltage difference waveform signal to obtain an impedance signal (for example, the impedance signal is a voltage signal capable of representing impedance information).

[0190] The fingerprint recognition module 111 collects the identity recognition signal. The method for collecting the identity recognition signal by the fingerprint recognition module 111 can adopt the method in the related art, and the embodiments of the present application do not limit this.

[0191] The steps of collecting the identity recognition signal by the fingerprint recognition module 111 and the steps of generating the impedance signal by the bioelectric signal acquisition module 12 are not limited in sequence, and can be performed synchronously or sequentially.

[0192] In some embodiments, before the fingerprint recognition module 111 collects the identity recognition signal, the control method further includes: judging whether the impedance signal is passed, and only when the impedance signal is passed, the fingerprint recognition module 111 collects the identity recognition signal. When the impedance signal is not passed, the fingerprint recognition module 111 does not collect the identity recognition signal.

[0193] Judging whether the impedance signal is passed is equivalent to the process of excluding fake fingers. After excluding fake fingers, fingerprint recognition is performed, which can further reduce the power consumption of the electronic device 1.

[0194] When both the identity recognition signal and the impedance signal are passed, the unlocking instruction is generated.

[0195] For example, when the finger contacts the fingerprint recognition module 111 to attempt to unlock the electronic device 1, the bioelectric signal acquisition module 12 simultaneously starts to detect the feedback signal. After the identity recognition signal collected by the fingerprint recognition module 111 is passed, the unlocking instruction is generated only when the impedance signal generated by the bioelectric signal acquisition module 12 is also passed. After the identity recognition signal collected by the fingerprint recognition module 111 is passed, the unlocking instruction is not generated when the impedance signal generated by the bioelectric signal acquisition module 12 is not passed. For example, by comparing the impedance signal with the preset impedance, when the impedance signal is within the preset impedance interval, it is judged that the impedance signal generated by the bioelectric signal acquisition module 12 is passed. This step can be performed by the processor in the electronic device 1, for example.

[0196] If the rubber model constructed finger contact detection assembly 10 is adopted, the collected impedance signal is the non-normal biological resistance, the impedance signal is not in the preset impedance interval range, and the impedance signal does not pass. Therefore, even if the identity recognition signal collected by the fingerprint recognition module 111 passes, the electronic device 1 will not have an unlocking operation.

[0197] The control method of the electronic device provided by the application embodiment will generate an unlocking instruction only when the identity recognition signal and the impedance signal both pass. If the impedance signal does not pass, the unlocking instruction will not be generated, and the electronic device 1 will not have an unlocking operation. The living body recognition can be realized, and the risk of directly unlocking the electronic device 1 by the fingerprint of the fake finger is reduced.

[0198] In some embodiments, the control method further comprises: before the fingerprint recognition module 111 collects the identity recognition signal, judging whether the user touches the first conductive layer 112 according to the excitation feedback signal of the second conductive layer 15.

[0199] The excitation source 141 sends a lead detection excitation signal to the first conductive layer 112, and after passing through the above contact resistance, the excitation feedback signal (feedback voltage) is output to the bioelectric signal acquisition module 12 by the second conductive layer 15. The feedback voltage is proportional to the impedance of the "detection resistance" (the greater the impedance of the "detection resistance", the greater the feedback voltage). By comparing the feedback voltage detected by the bioelectric signal acquisition module 12 with the set value, in the case that the feedback voltage is greater than the set value, it is judged that the user does not touch the first conductive layer 112. In the case that the feedback voltage is less than or equal to the set value, it is judged that the user touches the first conductive layer 112.

[0200] Therefore, in the case that the user touches the first conductive layer 112 (for example, the excitation feedback signal is less than the set value), the fingerprint recognition module 111 collects the identity recognition signal. In the case that the user does not touch the first conductive layer 112 and the second conductive layer 15 (for example, the excitation feedback signal is greater than or equal to the set value), the fingerprint recognition module 111 does not collect the identity recognition signal.

[0201] In the case that the user touches the first conductive layer 112 (for example, the excitation feedback signal is less than the set value), the bioelectric signal acquisition module 12 collects the lead detection excitation signal of the first conductive layer and the excitation feedback signal of the second conductive layer 15, and generates the impedance signal. In the case that the user does not touch the first conductive layer 112 and the second conductive layer 15 (for example, the excitation feedback signal is greater than or equal to the set value), the bioelectric signal acquisition module 12 does not generate the impedance signal.

[0202] By detecting whether the user touches the first conductive layer 112 before collecting the identity identification signal and the impedance signal. After judging that the user touches the first conductive layer 112, the identity identification signal and the impedance signal are collected. If the user does not touch the first conductive layer 112, the identity identification signal and the bioelectric signal are not collected. In this way, the power consumption of the electronic device 1 can be reduced.

[0203] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A detection assembly comprising: The detection assembly comprises: a texture recognition module configured to detect an identity recognition signal; The first conductive layer is arranged on the collection side of the texture identification module in a laminated manner; the resistivity of the first conductive layer is 1*10 -2 Ω·m~1*10 6 Ω·m; a bioelectric signal acquisition module coupled to the first conductive layer and configured to acquire a signal of the first conductive layer.

2. The detection assembly of claim 1, wherein, The material of the first conductive layer comprises carbide, conductive oxide or metal oxide.

3. The detection assembly of claim 1 or 2, wherein, The thickness of the first conductive layer is less than 30 um.

4. The detection assembly according to any one of claims 1-3, characterized in that, The detection assembly further comprises an insulating medium layer arranged on a side of the first conductive layer away from the texture recognition module.

5. The detection assembly according to any one of claims 1-4, characterized in that, The texture recognition module comprises a texture recognition chip, a packaging layer and a conversion board. The conversion board is coupled to the texture recognition chip, and the packaging layer covers the texture recognition chip; a side of the packaging layer away from the texture recognition chip is an acquisition side of the texture recognition module.

6. The detection assembly according to claim 5, wherein the packaging layer comprises conductive holes respectively coupled to the first conductive layer and the texture recognition chip; the bioelectric signal acquisition module is coupled to the conversion board and coupled to the first conductive layer through the texture recognition chip and the conductive holes; or the detection assembly comprises interconnection lines arranged on a side of the texture recognition module and respectively coupled to the first conductive layer and the conversion board; the bioelectric signal acquisition module is coupled to the conversion board and coupled to the first conductive layer through the interconnection lines. The detection assembly further comprises an excitation source, an impedance matching network and a second conductive layer.

7. The detection assembly of any one of claims 1-6, wherein, The impedance matching network is coupled between the excitation source and the first conductive layer. The second conductive layer is configured to contact a user; the second conductive layer is further coupled to the bioelectric signal acquisition module. The touch display screen comprises:

8. A touch display screen, characterized in that a touch layer comprising a texture recognition module configured to detect an identity recognition signal; a bioelectric signal acquisition pin coupled to the first conductive layer and configured to transmit a signal of the first conductive layer. The first conductive layer is arranged on the side of the touch control layer facing the light emitting side of the touch display screen and is stacked with the texture identification module; the resistivity of the first conductive layer is 1×10 -2 Ω·m~1×10 6 Ω·m; and the material of the first conductive layer is transparent conductive material. The material of the first conductive layer comprises carbide, conductive oxide or metal oxide. 9.The touch display screen of claim 8, wherein, The thickness of the first conductive layer is less than 30 um. 10.The touch display screen of claim 8 or 9, characterized in that, The touch display screen further comprises an insulating medium layer arranged on a side of the first conductive layer away from the texture recognition module. 11.The touch display screen of any one of claims 8-10, wherein, The electronic device comprises:

12. An electronic device, comprising: a processor; a detection assembly comprising any one of the detection assemblies according to claims 1-7, the detection assembly being coupled to the processor; or a touch display screen comprising any one of the touch display screens according to claims 8-11, the touch display screen being coupled to the processor. The electronic device further comprises a frame; the frame comprises an opening exposing the detection assembly. The second conductive layer is a back shell of the electronic device.

13. The electronic device of claim 12, wherein, The electronic device comprises a texture recognition module, a first conductive layer, a second conductive layer and a bioelectric signal acquisition module.

14. The electronic device of claim 12 or 13, wherein, The control method comprises:

15. A control method of an electronic device, characterized by, The bioelectric signal acquisition module acquires signals of the first conductive layer and the second conductive layer, and generates a bioelectric signal; The texture recognition module acquires an identity recognition signal; In a case where both the identity recognition signal and the bioelectric signal are passed, an unlocking instruction is generated. ​ ​ 16. The control method according to claim 15, characterized by Before the ridge recognition module collects the identity recognition signal, the control method further comprises: judging whether the bioelectric signal passes or not; The ridge recognition module collects the identity recognition signal, comprising: in the case that the bioelectric signal is a preset waveform signal, the ridge recognition module collects the identity recognition signal.

17. The control method according to claim 15 or 16, characterized by, The control method further comprises: In the case that the identity recognition signal and the bioelectric signal both pass, a biological detection report matched with identity information is generated.

18. A control method of an electronic device, characterized by, The electronic device comprises a ridge recognition module, a first conductive layer, a second conductive layer, a bioelectric signal collection module and an excitation source; The control method comprises: The excitation source sends a lead detection excitation signal to the first conductive layer; The bioelectric signal collection module collects the lead detection excitation signal of the first conductive layer and the excitation feedback signal of the second conductive layer, and generates an impedance signal; The ridge recognition module collects the identity recognition signal; In the case that the identity recognition signal and the impedance signal both pass, an unlocking instruction is generated.

19. The control method according to claim 18, characterized in that, Before the ridge recognition module collects the identity recognition signal, the control method further comprises: judging whether a user touches the first conductive layer according to the excitation feedback signal of the second conductive layer; The ridge recognition module collects the identity recognition signal, comprising: in the case that the excitation feedback signal is less than a set value, the ridge recognition module collects the identity recognition signal; Or, The bioelectric signal collection module collects the lead detection excitation signal of the first conductive layer and the excitation feedback signal of the second conductive layer, and generates an impedance signal, comprising: in the case that the excitation feedback signal is less than a set value, the bioelectric signal collection module collects the lead detection excitation signal of the first conductive layer and the excitation feedback signal of the second conductive layer, and generates the impedance signal.

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