Detection component and terminal device

Abstract

The embodiment of the present application provides a detection component and a terminal device, and relates to ECG detection. The terminal device comprises a screen and a shell, an outer surface of the shell comprises a wearing surface and a side surface connected with each other, and the screen is arranged opposite to the wearing surface. The detection component is arranged on the side surface, and the detection component comprises a transparent cover plate and an electrode layer. The electrode layer covers at least part of the surface of the transparent cover plate, and the electrode layer is used for collecting electrical signals of a user. The detection component is arranged on the side surface of the terminal device, and the detection component comprises a transparent cover plate and an electrode layer. The electrode layer covers at least part of the surface of the transparent cover plate, and the electrode layer is used for collecting electrical signals of a user. The transparent cover plate is a transparent structure, does not affect the color of the electrode layer or other element materials, and improves the color display effect of the detection component.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a detection component and terminal equipment. Background Technology

[0002] With the development of technology, people's demand for intelligent detection of physiological health indicators is becoming increasingly significant in scenarios such as work, life, exercise, and sleep. This has led to the emergence of terminal devices with functions such as heart rate detection, blood oxygen saturation detection, electrocardiogram (ECG) detection, and body temperature measurement. An ECG records electrical signals in the heart and can be used to quickly check for heart problems and assess heart health. Commonly used terminal devices employ metal as the base material, with an electrode material plated onto the metal surface to serve as the detection component for ECG detection. Improving the performance of this detection component has become a pressing technical challenge for the industry. Utility Model Content

[0003] This application provides a detection component and a terminal device to improve the performance of the detection component, such as improving the detection accuracy of the ECG detection component, improving the appearance of the ECG detection component, and / or improving the reliability of the ECG detection component.

[0004] In a first aspect, one embodiment of this application provides a detection component applied to a terminal device. The terminal device includes a screen and a housing, the outer surface of the housing including a wearable surface and a side surface connected to each other, the screen and the wearable surface being disposed opposite to each other. The detection component is used to be mounted on the side surface, and the detection component includes a transparent cover plate and an electrode layer, the electrode layer covering at least a portion of the surface of the transparent cover plate, the electrode layer being used to collect the user's electrical signals for ECG detection.

[0005] The detection component provided in this application uses a transparent cover plate made of transparent material, which does not affect the color display of the electrode layer or other component materials, thus improving the color display effect of the detection component. The transparent cover plate allows light to pass through, which is beneficial for the coupling of the detection component with other optical components.

[0006] The transparent cover can be made of insulating material. Using an insulating transparent cover as the base material will not affect the acquisition of electrical signals by the electrode layer, which is beneficial to improving the ECG detection accuracy of the detection component.

[0007] And / or, the transparent cover plate can be made of a non-metallic material whose oxidation rate is lower than that of the metallic electrode material under the same environment, thereby reducing or avoiding the possibility of oxide layer formation on the transparent cover plate, reducing the possibility of decreased adhesion between the electrode layer and the transparent cover plate, and reducing the possibility of electrode layer detachment, which is beneficial to improving the accuracy and reliability of ECG detection.

[0008] The transparent cover plate has a transparent structure, which does not affect the color display of the electrode layer or other component materials, thus improving the color display effect of the detection component. The transparent cover plate allows light to pass through, which is beneficial for the coupling of the detection component with other optical components.

[0009] The transparent cover can be made of glass or plastic. Glass or plastic are both transparent and insulating materials, and compared to metals, they are less prone to oxidation and the formation of an oxide layer. When glass or plastic is used as the base material, it does not affect the acquisition of electrical signals by the electrode layer, nor does it affect the adhesion between the electrode layer and the transparent cover, thus helping to improve the accuracy and reliability of ECG detection.

[0010] According to the first aspect, in one possible implementation, the outer surface of the transparent cover includes a first mounting surface and a second mounting surface disposed opposite to each other, the first mounting surface being used to expose the housing, and the electrode layer including a first portion, a second portion and a third portion electrically connected, the first portion covering at least a portion of the first mounting surface, the second portion being located on the side where the second mounting surface is located, and the third portion being electrically connected to the first portion and the second portion.

[0011] In this possible implementation, electrode layers are distributed and disposed on both opposite surfaces of the transparent cover plate. This increases the distribution area of ​​the electrode layers, reduces their resistance, and consequently minimizes the influence of the electrical signal transmission circuit on the electrical signal. The less influence the electrical signal transmission circuit has on the electrical signal, the higher the accuracy of ECG detection.

[0012] According to the first aspect, in one possible implementation, the second part covers the second mounting surface. The second part covers the second mounting surface and is in contact with it, thereby improving the fit between the second part and the transparent cover and reducing the possibility of the second part detaching from the transparent cover.

[0013] According to the first aspect, in one possible implementation, the outer surface of the transparent cover further includes a connecting surface, one end of which is connected to a first mounting surface, the other end of which is connected to a second mounting surface, and a third portion covering at least a portion of the connecting surface.

[0014] In this possible implementation, the connecting surface of the transparent cover is also covered with an electrode layer, which further increases the distribution area of ​​the electrode layer on the transparent cover and helps to further reduce the resistance of the electrode layer.

[0015] According to the first aspect, in one possible implementation, the transparent cover plate is further provided with a through hole that connects the first mounting surface and the second mounting surface, and the third part is disposed in the through hole.

[0016] In this possible implementation, by setting a third part in the through hole to achieve electrical connection between the first part and the second part, it is beneficial to shorten the conduction line between the first part and the second part and also reduce the use of electrode material.

[0017] According to the first aspect, in one possible implementation, the color of the first part is different from the color of the second part, so as to present the electrode effect of different colors and enhance the user experience.

[0018] According to the first aspect, in one possible implementation, the first part is a transparent electrode material; the second part is either a transparent electrode material or a non-transparent electrode material.

[0019] In this possible implementation, since both the first part and the transparent cover are transparent structures, the second part can be seen through the first part and the transparent cover, or the second part can be a stack or device on the side opposite to the first part.

[0020] According to the first aspect, in one possible implementation, the detection component further includes a decorative layer covering the second mounting surface, with a second portion covering the side of the decorative layer opposite to the transparent cover.

[0021] In this possible implementation, since both the first part and the transparent cover are transparent, the decorative layer can be seen through the first part and the transparent cover. The decorative layer is used to decorate the detection component. The first part needs to be touched by the user to collect electrical signals. The decorative layer is located on the side of the transparent cover away from the first part, that is, the decorative layer is not exposed to the outside of the terminal device, avoiding the possibility of damage to the decorative layer due to wear, sweat corrosion, etc.

[0022] According to the first aspect, in one possible implementation, the detection component further includes a conductive element, one end of which is electrically connected to the second part, and the other end of which is used to be electrically connected to the main circuit board, thereby realizing the electrical connection between the detection component and the main circuit board.

[0023] According to the first aspect, in one possible implementation, the transparent cover includes a curved surface that closely matches the user's finger, which helps to increase the contact area between the user's finger and the electrode layer, thereby improving the accuracy and quality of ECG detection.

[0024] According to the first aspect, in one possible implementation, the electrode layer is formed on the transparent cover plate by a coating process.

[0025] The electrode layer formed by the coating process has higher conductivity, lower contact resistance, and improved signal transmission efficiency. The uniform thickness of the film layer formed on the transparent cover plate through the coating process also helps to improve the quality of the electrical signals acquired by the electrode layer.

[0026] According to the first aspect, in one possible implementation, the thickness of the electrode layer ranges from 0.5 μm to 3 μm.

[0027] The thickness of the electrode layer affects conductivity. Conductivity affects signal acquisition quality; good conductivity results in good signal acquisition quality, and vice versa. The thickness of the electrode layer also affects abrasion resistance. A thinner electrode layer results in poorer abrasion resistance, while a thicker layer provides better abrasion resistance. Exposed portions of the electrode layer can peel off due to friction during daily use, causing uneven distribution of the electrode layer on the transparent cover and affecting signal acquisition quality. Excessive electrode layer thickness also increases costs.

[0028] In this possible implementation, the thickness of the electrode layer ranges from 0.5μm to 3μm, which ensures that the electrode layer has excellent conductivity and wear resistance.

[0029] According to the first aspect, in one possible implementation, the detection component further includes a detection circuit board, and the electrode layer is electrically connected to the detection circuit board. Integrating the detection circuit board into the detection component improves the integration level of the detection component and enhances the convenience of assembling the detection component into the terminal device.

[0030] According to the first aspect, in one possible implementation, the detection circuit board and the transparent cover are stacked along the thickness direction of the detection circuit board. The detection component is provided with a first viewing window; the detection component also includes a first optical element disposed on the side of the detection circuit board facing the transparent cover, and the first optical element is electrically connected to the detection circuit board. Light enters the first optical element through the first viewing window, or light emitted by the first optical element exits through the first viewing window to the outside of the detection component.

[0031] In this possible implementation, the electrode layer and optical elements are coupled together, enabling the detection component to acquire user electrical signals while also performing optical functions, thus improving the integration and functionality of the detection component. The detection circuit board and the transparent cover can be in contact or non-contact configurations.

[0032] According to the first aspect, in one possible implementation, the electrode layer is a non-transparent electrode, and the first window is a through-hole penetrating the non-transparent electrode. The first window is used for light transmission.

[0033] According to the first aspect, in one possible implementation, the detection component further includes a first Fresnel membrane disposed in the first viewing window, through which light can pass.

[0034] A Fresnel film is an optical thin film designed based on the Fresnel lens principle. A Fresnel film includes microstructures, such as concentric circles or prism arrays, to achieve specific optical effects.

[0035] Due to the special structure of the Fresnel membrane, while allowing light to pass through, the first Fresnel membrane can also block the structure inside the detection component, such as the first optical element, preventing the user from seeing the structure inside the detection component or terminal device from the outside through the first viewing window.

[0036] According to the first aspect, in one possible implementation, the detection component is provided with a second window. The detection component also includes a second optical element, which is disposed on the side of the detection circuit board facing the transparent cover and is electrically connected to the detection circuit board. The first optical element is a light source, and the second optical element is a photodetector. The light signal emitted by the light source exits from the first window to the user, and the light signal reflected by the user passes through the second window and enters the photodetector for PPG detection.

[0037] In this possible implementation, the detection component includes both ECG and PPG detection functions. When the user's finger touches the transparent cover, the electrode layer, light source, and photodetector can work synchronously to detect the electrical signal and PPG signal of the user's finger, respectively. The electrical signal and PPG signal are used to process the user's biometric information, such as blood pressure information, which can improve the accuracy of the detection.

[0038] In addition, ECG and PPG detection can be performed with a single finger operation, which is convenient for users and improves the user experience.

[0039] Furthermore, the electrode layer, light source, and photodetector do not need to be placed in different locations on the terminal device, which can save the space occupied by biometric information detection devices in the terminal device. While improving the aesthetics of the terminal device, it also facilitates the development of thinner and smaller terminal devices.

[0040] According to the first aspect, in one possible implementation, the detection component further includes a light-blocking structure connected between the transparent cover and the detection circuit board, and the light-blocking structure is located between the first optical element and the second optical element.

[0041] In this possible implementation, the light-blocking structure located between the first optical element and the second optical element is used to block at least part of the light signal emitted by the light source from directly entering the photodetector, thereby improving the detection effect of the photodetector on the effective light signal reflected or scattered by the user's finger, and thus improving the detection accuracy of the detection component for biometric information.

[0042] According to the first aspect, in one possible implementation, the light-blocking structure includes a light-blocking partition and a light-shielding object, the light-blocking partition being connected between the transparent cover and the detection circuit board, and / or, a light-shielding object being provided at the connection between the light-blocking partition and the transparent cover, and / or at the connection between the detection circuit board and the transparent cover.

[0043] Gaps may exist at the joints between the light-blocking partition and the transparent cover, and at the joints between the light-blocking partition and the detection circuit board. Light-shielding materials are placed at these gaps to block the gaps and reduce the possibility of invalid light entering the photodetector. The light-shielding materials can be fitted around the outside of the light-blocking partition. Alternatively, the light-shielding materials can be placed at the gaps in the joints to block the gaps.

[0044] According to the first aspect, in one possible implementation, the outer surface of the light-blocking structure is covered with a light-absorbing layer, which is used to absorb stray light or invalid light, improve the quality of effective light entering the photodetector, and thus improve the PPG detection accuracy.

[0045] According to the first aspect, in one possible implementation, the detection component further includes a light-shielding layer disposed on the side of the transparent cover facing the detection circuit board. The light-shielding layer has a light-transmitting area corresponding to the first viewing window, and the light-transmitting area is used for light transmission. Alternatively, the light-shielding layer is disposed to avoid the first viewing window in order to form a light-transmitting area, that is, the area where the first viewing window is located is not covered or not provided with a light-shielding layer, so as not to affect the transmission of light.

[0046] In this possible implementation, the light-shielding layer is used to reduce stray or invalid light from the side of the transparent cover away from the light-shielding layer from entering the detection component, thereby further improving the quality of effective light entering the photodetector and thus improving the PPG detection accuracy.

[0047] According to the first aspect, in one possible implementation, the detection component further includes a pressure sensor disposed on the side of the transparent cover facing the detection circuit board, the pressure sensor being electrically connected to the detection circuit board, and the pressure sensor being used to detect the pressing pressure of the user pressing on the electrode layer.

[0048] In one possible implementation, the pressure sensor generates a pressure signal when it detects pressing pressure. When the user presses the transparent cover with their finger, the pressure sensor and the electrode layer can work simultaneously. This pressure signal can be used to assist in the detection of biometric information by ECG, improving the accuracy of biometric information detection.

[0049] According to the first aspect, in one possible implementation, the detection component further includes a temperature sensor electrically connected to the detection circuit board, the temperature sensor being used to detect the user's temperature.

[0050] Secondly, according to one embodiment of this application, a terminal device is also provided. The terminal device includes a device body and a detection component according to the first aspect. The device body includes a screen and a housing.

[0051] The terminal device provided in this application has a detection component for ECG detection on the side of its housing, which allows the user's finger to contact the detection component from the side of the housing to perform ECG detection.

[0052] According to the second aspect, in one possible implementation, the main body of the device further includes a first ECG electrode and a second ECG electrode, which are spaced apart on the wearing surface and are used to collect the user's electrical signals.

[0053] In this possible implementation, the electrode layer of the detection component, the first ECG electrode, and the second ECG electrode are used in conjunction to acquire the user's electrical signal. Compared to ECG electrode detection using two electrodes, the electrode layer of the detection component, the first ECG electrode, and the second ECG electrode form a longer-distance loop during ECG detection, resulting in a larger potential difference and clearer signal amplitude, which is beneficial for improving the ECG detection accuracy of the terminal device.

[0054] According to the second aspect, in one possible implementation, the terminal device is a watch or bracelet, which is convenient for users to wear on their wrist and to perform ECG detection. Attached Figure Description

[0055] Figure 1 This is a schematic functional block diagram of a terminal device provided in one embodiment of this application;

[0056] Figure 2 This is a schematic diagram of the structure of a terminal device provided in one embodiment of this application;

[0057] Figure 3 For along Figure 2 The sectional view obtained by line AA;

[0058] Figure 4 A bottom view of a terminal device provided in one embodiment of this application;

[0059] Figure 5 An exploded perspective view of a terminal device provided in one embodiment of this application;

[0060] Figure 6 A schematic diagram showing the connection of the main circuit board, the first ECG electrode, the second ECG electrode, and the detection component;

[0061] Figure 7A A three-dimensional schematic diagram of the detection component provided in one embodiment of this application, wherein the transparent cover plate has a curved structure and electrode layers are provided on the first mounting surface, the second mounting surface, and the connecting surface;

[0062] Figure 7B For along Figure 7A The sectional view obtained by line B1-B1;

[0063] Figure 7C A schematic diagram showing the detection component and the main circuit board electrically connected via conductive elements according to an embodiment of this application;

[0064] Figure 8A A perspective view of the detection component provided in one embodiment of this application when the transparent cover plate has a planar structure;

[0065] Figure 8B For along Figure 8A The sectional view obtained by line B2-B2;

[0066] Figure 9A A three-dimensional schematic diagram of the detection component provided in one embodiment of this application when the transparent cover plate has a curved structure and the electrode layer has a non-transparent electrode;

[0067] Figure 9B For along Figure 9A The sectional view obtained by line B3-B3;

[0068] Figure 9C A three-dimensional schematic diagram of the detection component provided in one embodiment of this application when the transparent cover plate is a planar structure and the electrode layer is a non-transparent electrode;

[0069] Figure 10A A three-dimensional schematic diagram of the detection component provided in one embodiment of this application when the transparent cover plate has a curved structure and the transparent cover plate has a through hole;

[0070] Figure 10B For along Figure 10A The sectional view obtained by line B4-B4;

[0071] Figure 10C A cross-sectional view of the detection component provided in one embodiment of this application when the transparent cover plate has a planar structure and the transparent cover plate has a through hole;

[0072] Figure 11A A three-dimensional schematic diagram of the detection component provided in one embodiment of this application when the transparent cover plate has a curved structure and the electrode layer has a transparent electrode;

[0073] Figure 11B For along Figure 11A The sectional view obtained by line B5-B5;

[0074] Figure 11C A cross-sectional view of the detection component provided in one embodiment of this application, where the transparent cover plate is a planar structure and all electrode layers are transparent electrodes;

[0075] Figure 12A A three-dimensional schematic diagram of the detection component provided in one embodiment of this application, where the transparent cover plate has a curved structure, the electrode layer is a non-transparent electrode, and the color of the first part is different from the color of the second part.

[0076] Figure 12B For along Figure 12A The sectional view obtained by line B6-B6;

[0077] Figure 12C A cross-sectional view of the detection component provided in one embodiment of this application, where the transparent cover plate is a planar structure, the electrode layer is a non-transparent electrode, and the color of the first part is different from the color of the second part;

[0078] Figure 13 A cross-sectional view of the detection component provided in one embodiment of this application, comprising a first part being a transparent electrode, a second part being a non-transparent electrode, and a third part including both a non-transparent electrode and a transparent electrode;

[0079] Figure 14 A cross-sectional view of the detection component provided in one embodiment of this application, including a decorative layer;

[0080] Figure 15 A cross-sectional view of the detection component provided in one embodiment of this application, including a decorative layer;

[0081] Figure 16 This is a schematic diagram showing that the transparent cover plate and the detection circuit board of the detection component provided in one embodiment of this application are stacked together, and the detection circuit board is in contact with the second part of the electrode layer;

[0082] Figure 17 A three-dimensional schematic diagram of a detection component provided in one embodiment of this application, which includes a light sensor and has a curved transparent cover plate.

[0083] Figure 18A A perspective view of a detection component provided in one embodiment of this application, comprising a detection circuit board, a first optical element, a second optical element, and a transparent cover plate having a planar structure;

[0084] Figure 18B For along Figure 18A The sectional view obtained by line B7-B7;

[0085] Figure 18C A cross-sectional schematic diagram showing the electrode layer of the detection component provided in one embodiment of this application electrically connected to the detection circuit board via a conductive element.

[0086] Figure 19 A cross-sectional schematic diagram of a light-blocking structure containing a conductive element in a detection component provided in one embodiment of this application.

[0087] Figure 20 A schematic flowchart illustrating a method for forming a window in a detection component according to an embodiment of this application;

[0088] Figure 21A for Figure 20 The structural diagram corresponding to S101;

[0089] Figure 21B for Figure 20 A schematic diagram of the structure corresponding to S102;

[0090] Figure 21C for Figure 20 A schematic diagram of the structure formed corresponding to S103;

[0091] Figure 22 A schematic flowchart illustrating a method for forming a window in a detection component according to an embodiment of this application;

[0092] Figure 23A for Figure 22 A schematic diagram of the structure corresponding to S202;

[0093] Figure 23B for Figure 22 A schematic diagram of the structure formed corresponding to S203;

[0094] Figure 23C for Figure 22 The structural diagram corresponding to S204.

[0095] Explanation of reference numerals in the attached figures:

[0096] 1000 - Terminal device; 110 - Processor; 1101 - First processing unit; 1102 - Second processing unit; 120 - Input device; 130 - Sensor module; 130A - PPG sensor; 130B - Pressure sensor; 130C - Fingerprint sensor; 130D - ECG sensor; 130E - Accelerometer sensor; 130F - Ambient light sensor; 130G - Proximity light sensor; 130H - Touch sensor; 140 - Screen; 150 - Camera; 160 - Memory; 170 - Power supply module; 180 - Audio device; 191 - Wireless communication module; 192 - Mobile communication module; 193 - Antenna; 300 - Strap; 200 - Device body; 202 - Wearing surface; 203 - Side; 2031 - Reception part; 210 - Housing; 220 - Main circuit board; 204 - 205-Second ECG electrode; 100-Detection component; 21-Transparent cover plate; 211-First mounting surface; 213-Second mounting surface; 215-Connecting surface; 216-Through hole; 22-Electrode layer; 221-First part; 223-Second part; 225-Third part; 2251-First segment; 2253-Second segment; 226-First window; 227-Second window; 229-Area; 23-Decorative layer; 24-Light-shielding layer; 25-First Fresnel film; 26-Second Fresnel film; 27-Detection circuit board; 28-First optical element; 29-Second optical element; 30-Light-blocking structure; 31-Light-blocking partition; 32-Light-shielding object; 35-Channel; 40-Conductive component; 2171-First shielding layer; 2173-Second shielding layer; 2175-Third shielding layer. Detailed Implementation

[0097] Figure 1 This is a schematic functional block diagram of a terminal device 1000 provided in one embodiment of this application. Figure 2 This is a schematic diagram of the structure of a terminal device 1000 according to one embodiment of this application. The terminal device 1000 can be a wristband, a watch, or other types of terminal devices, such as a tablet computer or a mobile phone. For ease of explanation, the following embodiments use a watch as an example to illustrate the terminal device 1000. It should be understood that the following exemplary descriptions should not be considered as limiting this application.

[0098] refer to Figure 1 For example, the terminal device 1000 may further include a processor 110, an input device 120, a sensor module 130, a memory 160, and a power supply module 170. It is understood that... Figure 1 The components shown do not constitute a specific limitation on the terminal device 1000. The terminal device 1000 may also include more or fewer components than shown, or combine some components, or split some components, or have different component arrangements.

[0099] Processor 110 may include one or more processing units, such as: application processor (AP), modem processor, graphics processing unit (GPU), image signal processor (ISP), controller, memory, video codec, digital signal processor (DSP), baseband processor, and / or neural network processing unit (NPU), analog front-end (AFE) processor, microcontroller unit (MCU), etc. Different processing units may be independent devices or integrated into one or more devices, such as a chip. The controller may be the central nervous system and command center of the terminal device 1000. The controller can generate operation control signals based on instruction opcodes and timing signals to control instruction fetching and execution. In other embodiments, processor 110 may also include memory for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. This memory can store instructions or data that processor 110 has recently used or is cyclically used. If the processor 110 needs to use the instruction or data again, it can directly retrieve it from memory, avoiding repeated access and reducing the waiting time of the processor 110, thereby improving the efficiency of the terminal device 1000.

[0100] The input device 120 is used to provide user input and may be a mechanical device. When the user touches the input device 120, the input device 120 rotates, translates, or tilts to realize user input, thereby realizing the functions or operations of the terminal device 1000 such as starting up (e.g., turning on or off), confirming or adjusting signals (e.g., adjusting the volume).

[0101] Sensor module 130 may include one or more sensors, such as a PPG sensor 130A, a pressure sensor 130B, a fingerprint sensor 130C, an ECG sensor 130D, an accelerometer 130E, an ambient light sensor 130F, a proximity sensor 130G, a touch sensor 130H, etc. It should be understood that... Figure 1 These are just a few examples of sensors. In practical applications, the terminal device 1000 may include more or fewer sensors, or other sensors with the same or similar functions may be used to replace the sensors listed above. This application does not limit the scope of the embodiments.

[0102] In some embodiments, the sensor module 130 can detect user input from the input device 120 and respond to the user input to perform functions or operations such as starting, confirming, and adjusting signals.

[0103] The PPG sensor 130A can be used to detect heart rate, i.e., the number of heartbeats per unit time. In some embodiments, the PPG sensor 130A may include a light source and a photodetector. The light source can illuminate the human body (e.g., blood vessels) with a light beam, which is reflected / refracted within the body. The reflected / refracted light is received by the photodetector to obtain an optical signal. Because the transmittance of blood changes during fluctuations, the emitted / refracted light changes, and the optical signal detected by the PPG sensor 130A also changes. The PPG sensor 130A can convert the optical signal into an electrical signal to determine the heart rate corresponding to the electrical signal. In the embodiments of this application, the PPG sensor 130A can be disposed within the input device 120 or within other components of the terminal device 1000, for example, it can be disposed within... Figure 2 The detection component 100 of the terminal device 1000 shown can perform PPG detection by detecting the optical signal through the PPG sensor 130A.

[0104] Please continue to refer to this. Figure 1 The pressure sensor 130B can be used to detect the pressure value between the human body and the terminal device 1000. The pressure sensor 130B senses pressure signals and converts them into electrical signals. There are many types of pressure sensors 130B, such as resistive pressure sensors, inductive pressure sensors, and capacitive pressure sensors, etc., which are not limited in this embodiment. In this embodiment, multiple pressure sensors 130B can be provided on the input device 120, and the rotation of the input device 120 is identified by the signal difference between adjacent pressure sensors 130B. The pressure sensor 130B can be disposed on the detection component 100 (e.g., Figure 2 (As shown) is used to detect the user's pressing operation on the detection component 100.

[0105] The 130D ECG sensor is used for users to perform electrocardiography (ECG) tests. ECG testing is a method of recording the electrophysiological activity of the heart over time. This method uses electrodes (or ECG electrodes) attached to the user's skin to detect changes in the heart's electrical potential. Generally, ECG electrodes need to be in close contact with the skin so that they can detect the electrical signals and thus create an ECG. The amplitude of the electrical signal is typically only a few millivolts, and the frequency is generally no more than a few hundred hertz. After the electrical signal is detected by the ECG electrodes, it is transmitted to the testing equipment for further processing. The impedance between the ECG electrode and the skin is a type of contact noise that affects the detection of the electrical signal. The path through which the signal is conducted from the ECG electrodes to the signal processing module also affects the processing of the signal.

[0106] For example, the ECG sensor 130D includes at least two ECG electrodes. The ECG sensor 130D can acquire the user's electrical signals through at least two ECG electrodes for ECG detection. One of the ECG electrodes may be located in the detection component 100 (e.g., Figure 2 The remaining ECG electrodes can be disposed on other components of the terminal device 1000, such as the housing of the terminal device 1000 (as shown). Figure 4 (As shown).

[0107] The memory 160 can be used to store computer executable program code, which includes instructions. The processor 110 executes various functional applications and data processing of the terminal device 1000 by running the instructions stored in the memory. The memory 160 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc., which are not limited in the embodiments of this application.

[0108] The power supply module 170 can supply power to various components in the terminal device 1000, such as the processor 110 and the sensor module 130. In some embodiments, the power supply module 170 can be a battery or other portable power element. In other embodiments, the terminal device 1000 can also be connected to a charging device (e.g., via wireless or wired connection), and the power supply module 170 can receive electrical energy input from the charging device to store battery power.

[0109] The terminal device 1000 may also include a camera 150 and an audio device 180, wherein the camera 150 is used to capture images and the audio device 180 is used to output sound.

[0110] In some embodiments, continue to refer to Figure 1The terminal device 1000 also includes a screen 140. The screen 140 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a minimized LED, a microLED, a quantum dot light-emitting diode (QLED), etc. In some embodiments, a touch sensor can be provided in the screen to form a touchscreen; this application embodiment does not limit this. It is understood that in some embodiments, the terminal device 1000 may or may not include the screen 140. For example, when the terminal device 1000 is a wristband, it may or may not include a screen; when the terminal device 1000 is a watch, it may include a screen.

[0111] Additionally, the terminal device 1000 may have wireless communication capabilities. In some embodiments, reference continues to be made to... Figure 1 The terminal device 1000 may also include a wireless communication module 191, a mobile communication module 192, and an antenna 193. The terminal device 1000 can realize wireless communication functions through the antenna 193, the wireless communication module 191, and the mobile communication module 192.

[0112] Please continue reading. Figure 2 The terminal device 1000 may include a main body 200 and a detection component 100 installed on the main body 200. The detection component 100 is used to perform ECG detection.

[0113] The terminal device 1000 also includes a strap 300, which is connected to the device body 200 and can be used to wear the device body 200 on a user's wrist. In some examples, the tightness of the strap 300 can be adjusted to regulate the contact between the device body 200 and the user's skin. When the terminal device 1000 is a wearable device such as a watch or bracelet, the strap 300 can also be called a watch strap, and the device body 200 can also be called a watch body.

[0114] The main body of the equipment 200 may include Figure 1The terminal device 1000 includes various components such as a processor 110, an input device 120, a sensor module 130, and a screen 140. The terminal device 1000 can utilize one or more of these components to detect and process the user's physiological health data. For example, the input device 120 can be used to acquire the user's instructions, and the processor 110 can process this instructions and invoke one or more sensors in the sensor module 130 to measure the user's electrocardiogram (ECG).

[0115] Figure 3 For along Figure 2 The cross-sectional view obtained by line AA. The device body 200 may include a screen 140, a power supply module 170, a housing 210, and circuit boards. The functions of the screen 140 and the power supply module 170 have been described previously and will not be repeated here for brevity. It should be noted that the number of circuit boards can be one or more. When there is only one circuit board, it includes a main circuit board 220. When the device body 200 includes multiple circuit boards, for example, the circuit boards may include the main circuit board 220 and other circuit boards, i.e., auxiliary circuit boards.

[0116] The housing 210 forms a cavity that can accommodate the screen 140, the main circuit board 220, the power supply module 170, and other functional components. The main circuit board 220 can carry one or more electronic components and can be used to process data and information acquired by the terminal device 1000.

[0117] The outer surface of the housing 210 includes a wearing surface 202 and a side surface 203 connected to each other. The wearing surface 202 can be used to contact the user's skin, such as the skin of the wrist. The screen 140 is disposed opposite to the wearing surface 202.

[0118] It should be noted that, optionally, when the terminal device 1000 is a wristband or watch, the housing 210 of the main body 200 may also include a front shell, which is positioned opposite to the wearing surface 202.

[0119] Please combine Figure 3 and Figure 4 The main body 200 of the device also includes a first ECG electrode 204 and a second ECG electrode 205, which are spaced apart on the wearing surface 202. Both the first ECG electrode 204 and the second ECG electrode 205 are electrically connected to the main circuit board 220 through electrical connectors.

[0120] Please refer to the following: Figure 3 , Figure 4 , Figure 5The detection component 100 can be a button or rotating crown located on the side 203. At least a portion of the detection component 100 includes an electrode layer. The electrode layer can serve as the third ECG electrode of the terminal device 1000. At least a portion of the electrode layer is exposed on the side 203 to facilitate touch or pressure by the user's fingers. The first ECG electrode 204, the second ECG electrode 205, and the electrode layer of the detection component 100 are used to cooperate to collect the user's electrical signals, thereby realizing ECG detection. For example, the first ECG electrode 204 and the electrode layer of the detection component 100 can generate electrical signals at two locations. The AFE can perform differential processing on the electrical signals of the first ECG electrode 204 and the electrode layer of the detection component 100 to obtain lead signals, and send the lead signals to the AP or MCU. ECG or other physiological parameters can be detected through the lead signals. The second ECG electrode 205 can serve as a reference electrode, and its electrical signal can be used to improve the common-mode rejection ratio of ECG detection. It is understood that the above example uses the second ECG electrode 205 as a reference electrode, and it is also understood that the first ECG electrode 204 can also be used as a reference electrode. That is, either the first ECG electrode 204 or the second ECG electrode 205 can be used as a reference electrode. The embodiments of this application are not limited thereto.

[0121] A receiving portion 2031 may be provided on the side 203 of the housing 210, and at least a portion of the detection component 100 is received within the receiving portion 2031. During assembly, the receiving portion 2031 can be used to position the detection component 100, facilitating the assembly between the detection component 100 and the housing 210. The receiving portion 2031 can be a slot or a hole. In one embodiment, the receiving portion 2031 may be omitted, and the detection component 100 can be directly mounted on the side 203.

[0122] When a user wears the terminal device 1000, their wrist contacts the first ECG electrode 204 and the second ECG electrode 205, and their fingers can contact the electrode layer of the detection component 100. The first ECG electrode 204, the second ECG electrode 205, and the electrode layer of the detection component 100 work together to collect the user's electrical signals. Compared to ECG detection using two electrodes, the electrode layer of the detection component 100, the first ECG electrode 204, and the second ECG electrode 205 form a longer-distance loop during ECG detection, resulting in a larger potential difference and clearer signal amplitude, which is beneficial for improving the ECG detection accuracy of the terminal device 1000. This application does not limit the placement of the first ECG electrode 204 and the second ECG electrode 205 in the terminal device 1000. For example, in some possible embodiments, the first ECG electrode is placed on the wearing surface 202, and the second ECG electrode 205 is placed on the strap or other similar locations. This application does not limit the number of electrodes used for ECG detection. For example, the second ECG electrode can be omitted, or the terminal device 1000 can have three or more electrodes.

[0123] like Figure 6 As shown, the first ECG electrode 204, the second ECG electrode 205, and the detection component 100 are all electrically connected to the main circuit board 220. The processor 110 can be disposed on the main circuit board 220. The processor 110 is used to receive and process electrical signals to generate the user's ECG.

[0124] The processor 110 may include a first processing unit 1101 and a second processing unit 1102. The first processing unit 1101 receives and processes electrical signals transmitted from the first ECG electrode 204, the second ECG electrode 205, and the electrode layer of the detection component 100. The first processing unit 1101 may perform differential processing on the electrical signals to obtain lead signals and send them to the second processing unit 1102. The second processing unit 1102 may generate the user's ECG based on the lead signals. For example, the first processing unit 1101 may include an AFE, and the second processing unit 1102 may include an AP or an MCU. This application does not limit the type of the first processing unit 1101, nor does it limit the type of the second processing unit 1102.

[0125] In commonly used terminal devices, metal is used as the base material, and an electrode material is then plated onto the metal surface to serve as the detection component for ECG detection. However, plating an electrode material onto the metal surface to form the detection component 100 results in poor color rendering of the detection component 100; in other words, the appearance and texture of the detection component are poor, affecting the overall appearance of the terminal device 1000. Furthermore, metal itself is a conductive material, which may affect the accuracy of ECG detection. Additionally, metal is easily oxidized to form an oxide layer, which affects the adhesion between the electrode layer and the metal, potentially causing some of the electrode layer to detach from the metal surface, thus affecting the electrical properties of the electrode layer and consequently impacting the detection accuracy and reliability of the ECG detection component.

[0126] Based on this, one embodiment of this application provides a detection component 100, which can improve the performance of the ECG detection component, such as improving the detection accuracy of the ECG detection component, improving the appearance of the ECG detection component, and / or improving the reliability of the ECG detection component.

[0127] For example, please refer to Figure 7A and Figure 7B A detection component 100 includes a transparent cover plate 21 and an electrode layer 22. The electrode layer 22 covers at least a portion of the surface of the transparent cover plate 21 and is used to collect the user's electrical signal for ECG detection.

[0128] The detection component 100 provided in this application has a transparent cover plate 21 made of insulating material. Using an insulating transparent cover plate 21 as the base material will not affect the acquisition of electrical signals by the electrode layer 22, which is beneficial to improving the ECG detection accuracy of the detection component 100.

[0129] And / or, the transparent cover plate 21 can be made of a non-metallic material whose oxidation rate is lower than that of the metal electrode material under the same environment, thereby reducing or avoiding the possibility of oxide layer formation on the transparent cover plate 21, reducing the possibility of decreased adhesion between the electrode layer 22 and the transparent cover plate 21, and reducing the possibility of electrode layer 22 falling off, which is beneficial to improving the accuracy and reliability of ECG detection.

[0130] The transparent cover 21 is transparent and will not affect the color of the electrode layer 22 or other component materials, thus improving the color display effect of the detection component 100. The transparent cover 21 is light-transmitting, which is beneficial for the coupling of the detection component 100 with other optical components (such as PPG sensors).

[0131] In this embodiment, the transparent cover plate 21 can be made of glass. Glass is both a transparent and insulating material, and compared to metal, it is less prone to oxidation and the formation of an oxide layer. When glass is used as the substrate material, it does not affect the acquisition of electrical signals by the electrode layer 22, nor does it affect the adhesion between the electrode layer 22 and the transparent cover plate 21, thereby improving the accuracy and reliability of ECG detection. It should be noted that the glass described above is only an example, and the material of the transparent cover plate 21 in this application is not limited to it. The transparent cover plate 21 can include other materials, such as plastic, resin, etc.

[0132] When the detection component 100 is applied to the terminal device 1000, the detection component 100 is installed on the side 203 of the housing 210, so that the user's finger can contact the detection component 100 from the side 203 of the housing 210 to perform ECG detection.

[0133] like Figure 7C As shown, the detection component 100 also includes a conductive element 40. One end of the conductive element 40 is electrically connected to the second portion 223 of the electrode layer 22, and the other end of the conductive element 40 is used for electrical connection with the main circuit board 220, thereby realizing the electrical connection between the detection component 100 and the main circuit board 220. The conductive element 40 may include conductive structures such as wires and / or electrical connectors.

[0134] The transparent cover plate 21 may include a curved surface. A curved surface provides a higher degree of fit to the user's finger, which helps to increase the contact area between the user's finger and the electrode layer 22, thereby improving the accuracy and quality of ECG detection. For example, the transparent cover plate 21 may have a curved surface structure. It should be noted that this application does not limit the shape and structure of the transparent cover plate 21. In another embodiment, for example, such as... Figure 8A and Figure 8B As shown, the transparent cover plate 21 can also be a flat plate structure.

[0135] The outer surface of the transparent cover 21 includes a first mounting surface 211, a second mounting surface 213, and a connecting surface 215. The first mounting surface 211 and the second mounting surface 213 are disposed opposite to each other. One end of the connecting surface 215 is connected to the first mounting surface 211, and the other end of the connecting surface 215 is connected to the second mounting surface 213. The first mounting surface 211 is used to expose the housing 210 (e.g., Figure 4 (As shown). The electrode layer 22 includes a first portion 221, a second portion 223, and a third portion 225 that are electrically connected. The first portion 221 covers the first mounting surface 211, and the second portion 223 covers the second mounting surface 213. The third portion 225 electrically connects the first portion 221 and the second portion 223. The third portion 225 covers the connection surface 215.

[0136] Electrode material is covered on the first mounting surface 211, the second mounting surface 213, and the connecting surface 215 of the transparent cover plate 21. This electrode material covering the transparent cover plate 21 helps reduce the resistance of the electrode layer 22, thereby reducing the impact of the electrical signal transmission circuit on the electrical signal quality. The smaller the impact of the electrical signal transmission circuit on the electrical signal, the higher the accuracy of the ECG detection. The electrode layer 22 can directly contact the outer surface of the transparent cover plate 21, which helps improve the adhesion between the second part 223 and the transparent cover plate 21, reducing the possibility of the electrode layer 22 detaching from the transparent cover plate 21.

[0137] The electrode layer 22 formed on the transparent cover plate 21 can be formed through a coating process. The electrode layer 22 formed through the coating process has higher conductivity, reduces contact resistance, and improves signal transmission efficiency. The electrode layer 22 formed on the transparent cover plate 21 through the coating process has a uniform thickness, which is beneficial to improving the quality of the electrical signal acquired by the electrode layer 22. The coating process includes, but is not limited to, vacuum coating processes, such as physical vapor deposition (PVD) coating, chemical vapor deposition (CVD) coating, etc. This application does not limit the processing technology of the electrode layer 22 on the transparent cover plate 21; the electrode layer 22 can also be disposed on the transparent cover plate 21 in other ways, such as by bonding.

[0138] The thickness of electrode layer 22 affects conductivity. Conductivity affects signal acquisition quality; good conductivity results in good signal acquisition quality, and vice versa. The thickness of electrode layer 22 also affects wear resistance. A thinner electrode layer 22 results in poorer wear resistance, while a thicker electrode layer 22 results in better wear resistance. The exposed portion of electrode layer 22 may peel off due to friction during daily use, causing uneven distribution of electrode layer 22 on the transparent cover plate 21 and affecting signal acquisition quality. However, excessively thick electrode layer 22 increases the manufacturing cost of detection component 100.

[0139] In this embodiment, the thickness of the electrode layer 22 can range from 0.5 μm to 3 μm, ensuring excellent conductivity and wear resistance. For example, the thickness of the electrode layer 22 can be 1.0 μm, 1.5 μm, 2.0 μm, 2.5 μm, 3.0 μm, etc. It is understood that the above are merely examples, and this application does not limit the thickness of the electrode layer 22.

[0140] Electrode layer 22 is made of a conductive material. Electrode layer 22 may include non-transparent and / or transparent electrodes. Non-transparent electrodes may be metals. Metals may include, but are not limited to, gold, silver, copper, tin, chromium, etc. Materials for transparent electrodes include, but are not limited to, indium tin oxide, zinc oxide-based materials, carbon-based materials, conductive polymers, metal nanowire networks, and transparent conductive hydrogels. Carbon-based materials may include, but are not limited to, graphene, carbon nanotubes, etc. This application does not limit the material of electrode layer 22.

[0141] In one embodiment of this application, a predetermined area of ​​the connection surface 215 may not have the electrode layer 22 provided; that is, a portion of the connection surface 215 may not be covered by the electrode layer 22 to accommodate the mutual insulation requirements between the detection component 100 and certain devices or structures of the device body 200. It is understood that, based on other requirements, a portion of the connection surface 215 may also be configured to not cover the electrode layer 22. Please refer to... Figure 9A , Figure 9B and Figure 9C The portion of the connecting surface 215 and the first mounting surface 211 and the second mounting surface 213 may cover the electrode layer 22, while the portion of the connecting surface 215 may not cover the electrode layer 22. For example, as shown... Figure 9A The area marked in white is not covered by electrode layer 22, while the area marked in gray is covered by electrode layer 22. Figure 9B for Figure 9A The cross-sectional view shown is obtained along line B3-B3 of the transparent cover plate 21 covering the electrode layer 22. Figure 9B It can also be seen that the electrode layer 22 is not covered by the connecting surface 215. It should be noted that... Figure 9A and Figure 9B Using the transparent cover plate 21 as a curved surface for illustration, it is understandable that this approach can also be applied to other structures, such as... Figure 9C As shown, the transparent cover plate 21 has a flat plate structure, and the portion of the connecting surface 215 may not cover the electrode layer 22. For example, the electrode layer 22 may be a non-transparent electrode.

[0142] In one embodiment of this application, exemplarily, such as Figure 10A The area marked in white is not covered by electrode layer 22, while the area marked in gray is covered by electrode layer 22. Figure 10B for Figure 10AThe diagram shows a cross-sectional view of the transparent cover plate 21 covered with electrode layer 22 along line B4-B4. It should be noted that the transparent cover plate 21 has a through hole 216 penetrating the first mounting surface 211 and the second mounting surface 213, and a third portion 225 is disposed within the through hole 216. In this possible implementation, by providing the third portion 225 within the through hole 216 to achieve electrical connection between the first portion 221 and the second portion 223, it is beneficial to shorten the conductive path between the first portion 221 and the second portion 223, and also to reduce the use of electrode material. It should be noted that, in this case, the connecting surface 215 may not have electrode layer 22 disposed thereon; that is, electrode layer 22 may not cover the connecting surface 215. It is understood that the embodiments of this application do not limit the shape of the transparent cover plate 21. For example, the transparent cover plate 21 can be a curved structure or a flat structure. Figure 10A , Figure 10B The transparent cover plate 21 shown in the illustration has a curved surface structure. Figure 10C The transparent cover plate 21 shown is a flat plate structure.

[0143] In other words, the third part 225, used to realize the electrical connection between the first part 221 and the second part 223, can cover the second mounting surface 213 (e.g., Figures 9A to 9C It can also be set in through hole 216 (e.g.) Figures 10A to 10C (As shown).

[0144] It should be noted that the above Figures 9A to 9C and Figures 10A to 10C The explanation uses a non-transparent electrode as an example; it can be understood that electrode layer 22 can also be a transparent electrode. Please refer to [link / reference]. Figure 11A , Figure 11B and Figure 11C The electrode layer 22 can be a transparent electrode. A first portion 221 covers and contacts the first mounting surface 211, and a second portion 223 covers and contacts the second mounting surface 213. A third portion 225 electrically connects the first portion 221 and the second portion 223. The third portion 225 covers and contacts the connection surface 215. For example,... Figure 11A The area marked in white is the transparent electrode. Figure 11B for Figure 11A The diagram shows a cross-sectional view along line B5-B5 of the transparent cover plate 21 covering the electrode layer 22. Since both the electrode layer 22 and the transparent cover plate 21 are transparent structures, the stacked layers or devices on the side of the second portion 223 facing away from the first portion 221 can be seen through the first portion 221, the transparent cover plate 21, and the second portion 223. It is understood that the embodiments of this application do not limit the shape of the transparent cover plate 21; for example, Figure 11A , Figure 11B The illustration shows that the transparent cover plate 21 has a curved surface structure. Figure 11C The transparent cover plate 21 shown is a flat plate structure.

[0145] It should be noted that the above Figures 9A to 9C , Figures 10A to 10C and Figures 11A to 11C The following description uses an example where the electrode layer 22 is either a transparent electrode or a non-transparent electrode of the same specification. It is understood that the embodiments of this application are not limited to this. For example, when the electrode layer 22 is a non-transparent electrode, it can also be a non-transparent electrode of different specifications; when it is a transparent electrode, it can also be a transparent electrode of different specifications. Different specifications may include at least two parts having different colors, and / or at least two parts having different materials, to obtain at least two colors or desired properties. For an example, please refer to [link to relevant documentation]. Figure 12A , Figure 12B and Figure 12C The electrode layer 22 is a non-transparent electrode. The color of the first portion 221 is different from the color of the second portion 223, and the color of the second portion 223 is the same as the color of the third portion 225, so that the electrode layer 22 presents two colors, thereby presenting at least two colors, improving the appearance of the detection component 100 and enhancing the user experience. For example, as shown... Figure 12A The area marked in dark gray is the first part 221, and the area marked in light gray is the second part 223 and the third part 225. Figure 12B for Figure 12A The cross-sectional view shown is obtained along line B6-B6 of the transparent cover plate 21 covering the electrode layer 22.

[0146] The material of the first part 221 of the electrode layer 22 may be different from the material of the second part 223, so that the color of the first part 221 is different from the color of the second part 223.

[0147] Since the electrode layer 22 includes at least two parts with different specifications, it can be coated at least twice. For example, during the first coating, the second mounting surface 213 and the connecting surface 215 are first masked, and then the first mounting surface 211 is coated to form a first part 221 with a first color; during the second coating, the first part 221 is masked, and then the second mounting surface 213 and the connecting surface 215 are coated to form a second part 223 and a third part 225 with a second color. For details, please refer to the description below, which will not be repeated here.

[0148] Understandable Figures 12A to 12C The example illustrates this by showing that the color of the first part 221 is different from the color of the second part 223, and the color of the second part 223 is the same as the color of the third part 225. It's understandable that other areas can also be set to different colors. For example, the color of the first part 221 can be the same as the color of the third part 225, and the colors of the first part 221 and the third part 225 can be different from the color of the second part 223.

[0149] For example, the material of the first portion 221 of the electrode layer 22 may differ from the material of the second portion 223 and / or the third portion 225. For instance, the hardness of the first portion 221 of the electrode layer 22 may be greater than that of the second portion 223 and / or the third portion 225, making the exposed first portion 221 more wear-resistant and reducing the possibility of damage to the electrode layer 22. As another example, since the first portion 221 needs to come into contact with the user's skin, the material of the first portion 221 is preferably a biocompatible material to avoid user discomfort due to allergies, etc. The biocompatibility of the first portion 221 of the electrode layer 22 may be greater than that of the second portion 223 and / or the third portion 225, improving the safety and reliability of the detection component 100.

[0150] It should be noted that the above Figures 9A to 9C , Figures 10A to 10C and Figures 11A to 11C The following explanation uses the example of electrode layer 22 being either a transparent electrode or a non-transparent electrode. It should be understood that the embodiments of this application are not limited to this; electrode layer 22 may include both transparent and non-transparent electrodes. That is, part of electrode layer 22 may be a transparent electrode, and part of electrode layer 22 may be a non-transparent electrode. Please refer to... Figure 13 For example, the first part 221 is a transparent electrode, the second part 223 is a non-transparent electrode, and the third part 225 includes a first segment 2251 and a second segment 2253. The first segment 2251 is connected between the first part 221 and the second segment 2253, and the second segment 2253 is connected between the first segment 2251 and the second part 223. The first segment 2251 is a transparent electrode, and the second segment 2253 is a non-transparent electrode. Figure 13 The areas marked in white are transparent electrodes, and the areas marked in light gray are non-transparent electrodes. Since both the first part 221 and the transparent cover plate 21 are transparent, the second part 223 can be seen through the first part 221 and the transparent cover plate 21; that is, the second part 223 is used to decorate the detection component 100. It is understood that the above... Figure 13 This is merely an example; the positions of the transparent and non-transparent electrodes are not limited thereto. For instance, alternatively, the first portion 221 may include both transparent and non-transparent electrodes, and / or the second portion 223 may include both transparent and non-transparent electrodes. See also... Figure 14 Alternatively, the first part 221 can be a transparent electrode, while the second part 223 and the third part 225 can be non-transparent electrodes. As another example, please refer to [link to alternative documentation]. Figure 15 Alternatively, the first part 221 and the second part 223 can be transparent electrodes, and the third part 225 can be a non-transparent electrode.

[0151] Optionally, the detection component 100 may also include a decorative layer 23. For an example, please refer to [link to example]. Figure 13 , Figure 14 and Figure 15 The decorative layer 23 covers the second mounting surface 213, and the second part 223 covers the side of the decorative layer 23 opposite to the transparent cover plate 21. Figure 13 , Figure 14 and Figure 15 In this design, the dark gray area located between the second part 223 and the second mounting surface 213 is the decorative layer 23. The material of the decorative layer 23 can be, but is not limited to, ink; for example, the decorative layer 23 can also be made of metal or other materials. The color of the decorative layer 23 is not limited; for example, it can be red, blue, gold, etc. The decorative layer 23 may also include decorative structures such as textures to enhance the decorative effect.

[0152] For example, when both the first part 221 and the transparent cover plate 21 are transparent structures, the decorative layer 23 can be seen through the first part 221 and the transparent cover plate 21. The decorative layer 23 is used to decorate the detection component 100.

[0153] It is understandable that the first part 221 needs to be touched by the user to collect electrical signals. The decorative layer 23 is placed on the side of the transparent cover 21 away from the first part 221, that is, the decorative layer 23 is not exposed to the outside of the terminal device 1000. This can avoid the possibility that the decorative layer 23 will be damaged due to wear, sweat corrosion, etc., and improve the reliability of the detection component 100.

[0154] It is understood that the embodiments of this application do not limit the shape of the transparent cover 21. For example, Figure 12A , Figure 12B The transparent cover 21 shown in the illustration has a curved structure, such as... Figure 12C , Figure 13 , Figure 14 , Figure 15 The transparent cover 21 shown is a flat plate. The transparent cover 21 in the example can be replaced with a transparent cover of other shapes.

[0155] It should be noted that, Figures 7A to 15 The electrode layer 22 of the detection component 100 shown is electrically connected to the main circuit board 220, so that the processor 110 on the main circuit board 220 receives and processes the electrode layer 22 of the detection component 100. Figure 3 The electrical signal collected by the first ECG electrode 204 is shown. Optionally, in some embodiments, a circuit board may be provided in the detection component 100 to perform ECG detection in the detection component 100. For an example, please refer to [link to example]. Figure 16 The detection component 100 may further include a detection circuit board 27. The electrode layer 22 is electrically connected to the detection circuit board 27. The detection circuit board 27 is electrically connected to the main circuit board 220, the first ECG electrode 204, and the second ECG electrode 205.

[0156] The detection circuit board 27 may be equipped with a processor for receiving and processing electrical signals. The processor of the detection circuit board 27 may include a third processing unit and a fourth processing unit. The third processing unit may perform differential processing on the electrical signals, obtain lead signals, and send them to the fourth processing unit. The fourth processing unit may process the lead signals to generate the user's ECG and feed it back to the main circuit board 220. Alternatively, the detection circuit board may include a third processing unit, with the fourth processing unit located outside the detection component 100. For example, the processor of the detection circuit board 27 may include a third processor, which may perform differential processing on the electrical signals, obtain lead signals, and send them to the fourth processor unit located on the main circuit board 220. The third processing unit may include an AFE (Automatic Front-End), and the fourth processing unit may include an AP (Action Processor) or an MCU (Microcontroller Unit).

[0157] The detection component 100 integrates a detection circuit board 27, which helps to improve the integration of the detection component 100 and the ease of assembling the detection component 100 into the terminal device 1000.

[0158] The test circuit board 27 includes, but is not limited to, a printed circuit board (PCB), a flexible printed circuit (FPC), or other types of circuit boards.

[0159] It is understood that the first ECG electrode 204 and / or the second ECG electrode 205 may not be directly connected to the detection circuit board 27. The first ECG electrode 204 and / or the second ECG electrode 205 may be connected to the main circuit board 220 or other electrical connection devices that are electrically connected to the detection circuit board 27. The first ECG electrode 204, the second ECG electrode 205, and the electrode layer 22 can form a detection circuit and transmit electrical signals to the detection circuit board 27.

[0160] It should be noted that, Figure 16 Taking the example of setting a non-transparent electrode, it can be understood that electrode layer 22 may include a transparent electrode, or electrode layer 22 may include both transparent and non-transparent electrodes. For a detailed description, please refer to the previous text, which will not be repeated here.

[0161] It should be noted that, Figure 16 Since the transparent cover plate 21 is a flat plate structure, it is understood that this application does not limit the shape of the transparent cover plate 21, and the transparent cover plate 21 can be a curved surface structure. For a detailed description, please refer to the previous text, and it will not be repeated here.

[0162] It should be noted that, Figure 16Taking the example of a transparent cover plate 21 and a detection circuit board 27 being stacked together and the detection circuit board 27 being in contact with the second part 223 of the electrode layer 22, this application is not limited to this. For an example, please refer to [link to example]. Figure 17 The transparent cover plate 21 and the detection circuit board 27 are stacked together, and there is a gap between the detection circuit board 27 and the second part 223 of the electrode layer 22. In other words, the detection circuit board 27 and the second part 223 of the electrode layer 22 can be set in a non-contact manner.

[0163] The above Figures 7A to 16 The detection component 100 shown is used for ECG detection. However, this application is not limited to this. The detection component 100 can also be equipped with other sensors to achieve more functions, such as ambient light detection, PPG detection, pressure detection, etc.

[0164] For example, please continue reading Figure 17 The electrode layer 22 is a non-transparent electrode, and the detection component 100 is provided with a first viewing window 226 and a second viewing window 227 for light transmission. The detection component 100 also includes a first optical element 28 and a second optical element 29, which are located between the detection circuit board 27 and the transparent cover plate 21. The first optical element 28 and the second optical element 29 are electrically connected to the detection circuit board 27. Figure 17 The gray area marked by the transparent cover plate 21 is the electrode layer 22. Part of the transparent cover plate 21 does not cover the electrode layer 22 to form the first window 226 and the second window 227 (as indicated by the white area).

[0165] Light enters the first optical element 28 through the first viewing window 226, or light emitted from the first optical element 28 exits through the first viewing window 226 to the outside of the detection component 100. Light enters the first optical element 28 through the second viewing window 227, or light emitted from the second optical element 29 exits through the second viewing window 227 to the outside of the detection component 100. Coupling the electrode layer 22 and the optical element within the same detection component 100 allows the detection component 100 to perform optical functions while simultaneously acquiring user electrical signals, thus improving the integration and functionality of the detection component 100.

[0166] For example, the first optical element 28 can be a light source, and the second optical element 29 can be a photodetector. The light signal emitted by the light source exits through the first viewing window 226, and the light signal reflected by the user passes through the second viewing window 227 and then enters the photodetector for PPG detection. In other words, the detection component 100 may include a PPG sensor, which includes a light source and a photodetector.

[0167] Users can touch the detection component 100 with their fingers, covering the first window 226 and the second window 227. The light signal reflected or scattered by the blood vessels in the user's finger can carry information such as the user's blood pressure, heart rate, and blood oxygen. After being received by the photodetector, it undergoes photoelectric conversion and related signal processing to form a photoplethysmography (PPG) signal. After further algorithm processing, the user's biometric information such as blood pressure, heart rate, and blood oxygen can be obtained.

[0168] The detection component 100 can simultaneously include ECG detection and PPG detection functions. When the user's finger touches the transparent cover plate 21, the electrode layer 22, the light source, and the photodetector can work synchronously and detect the electrical signal and PPG signal of the user's finger respectively. The electrical signal and PPG signal are used to process the user's biometric information, such as blood pressure information, which can improve the accuracy of detection.

[0169] In addition, ECG and PPG detection can be performed with a single finger operation, which is convenient for users and improves the user experience.

[0170] It is understandable that the electrode layer 22, the light source, and the photodetector do not need to be set in different positions in the terminal device 1000. This can save the space occupied by the biometric information detection device in the terminal device 1000, improve the aesthetics of the terminal device 1000, and also facilitate the development of the terminal device 1000 to be thinner and smaller.

[0171] The light source includes, but is not limited to, point light sources, such as light-emitting diodes (LEDs), laser diodes (LDs), or infrared emitting diodes. It can also be a linear or planar light source. There can be one or more light sources, which can emit light signals in one or more target wavelength bands. These target wavelength band light signals can pass through the user's finger and carry biometric signals related to blood vessels and blood in the user's finger. The target wavelength band light signals include, but are not limited to, visible light signals and / or infrared light signals. For example, the target wavelength band can be the red light band or the green light band. This application does not specifically limit the type, number, or wavelength of the light source.

[0172] The photodetector includes, but is not limited to, a photodiode (PD), a phototransistor, etc. The photodetector performs photoelectric conversion, converting the light signal received after reflection or scattering by a finger into a corresponding electrical signal. The detection circuit board 27 may also include a PPG processing circuit. The PPG processing circuit can process the electrical signal obtained from the photodetector and feed it back to the main circuit board 220.

[0173] It should be noted that this application does not limit the use of the first optical element 28 and the second optical element 29 for PPG detection. The first optical element 28 and the second optical element 29 can be used to detect the proximity of a user or object to the detection component 100 and the ambient light intensity, i.e., proximity light detection. The detection circuit board 27 can be equipped with a proximity light detection processing circuit. In other words, the detection component 100 can include a proximity light sensor. This application does not limit the number of optical elements, nor does it limit the number of windows. For example, the second window 227 and the second optical element 29 can be omitted, i.e., the detection component 100 includes the first window 226 and the first optical element 28. The first optical element 28 can be an ambient light sensor, which is used to detect the ambient light intensity. The number of optical elements can be greater. For example, the detection component 100 can include a PPG sensor, a proximity light sensor, and an ambient light sensor to integrate more optical functions on the basis of the ECG detection function.

[0174] Figure 17 The detection component 100 shown has a first viewing window 226 and a second viewing window 227. Without any modifications, the user can easily see the first optical element 28, the second optical element 29, and other structures through the first viewing window 226 and the second viewing window 227 from the outside, affecting the user experience. Therefore, please refer to... Figure 18A and Figure 18B The detection component 100 also includes a first Fresnel film 25 and a second Fresnel film 26. The first Fresnel film 25 is located in a first viewing window 226, and the second Fresnel film 26 is located in a second viewing window 227. Light can pass through the first Fresnel film 25 and the second Fresnel film 26 without affecting the transmission of the light signal. A Fresnel film is an optical thin film designed based on the Fresnel lens principle. A Fresnel film includes microstructures, such as concentric circles or prism arrays, to achieve specific optical effects. For example, Figure 18A and Figure 18B The area marked by the light gray color covered by the transparent cover plate 21 is the non-transparent electrode. Figure 18B For along Figure 18A The sectional view obtained by line B7-B7 in the diagram.

[0175] Due to the special structure of the Fresnel membrane, while the Fresnel membrane allows light to pass through, the first Fresnel membrane 25 and the second Fresnel membrane 26 can block the structure inside the detection component 100, such as the first optical element 28 and the second optical element 29, preventing the user from seeing the structure inside the detection component 100 or the terminal device 1000 from the outside through the first viewing window 226 and the second viewing window 227.

[0176] It should be noted that this application does not limit the number of Fresnel membranes; the number of Fresnel membranes can be one or more, and the number of Fresnel membranes can also correspond to the number of windows.

[0177] Since the second optical element 29 is a photodetector, stray or invalid light entering the photodetector will affect the PPG detection accuracy. Please continue reading. Figure 18B The detection component 100 may further include a light-blocking structure 30, which is connected between the transparent cover plate 21 and the detection circuit board 27, and is located between the first optical element 28 and the second optical element 29. The light-blocking structure 30 is used to block at least a portion of the light signal emitted by the light source from directly entering the photodetector, thereby improving the detection effect of the photodetector on the effective light signal reflected or scattered by the user's finger, and thus improving the detection accuracy of the detection component 100 in detecting biometric information.

[0178] For example, the light-blocking structure 30 includes a light-blocking partition 31 and a light-shielding element 32. The light-blocking partition 31 is connected between the transparent cover plate 21 and the detection circuit board 27. The light-shielding element 32 is provided at the connection between the light-blocking partition 31 and the transparent cover plate 21, and / or at the connection between the detection circuit board 27 and the transparent cover plate 21.

[0179] Gaps may exist at the connection points of the light-blocking partition 31 and the transparent cover 21, and at the connection points of the light-blocking partition 31 and the detection circuit board 27. Light-shielding materials 32 are installed at these gaps to block the gaps and reduce the possibility of invalid light entering the photodetector. Figure 18A and Figure 18B The black area of ​​the light-blocking structure 30 is the light-blocking partition 31, and the light gray area is the light-shielding material 32. Optionally, the light-shielding material 32 can be fitted around the light-blocking partition 31. The light-shielding material 32 can also be placed in the gap at the connection point and block the gap. The light-shielding material 32 can include foam, sponge, rubber, silicone, or other objects that can achieve light blocking.

[0180] The outer surface of the light-blocking partition 31 may also be covered with a light-absorbing layer. This layer absorbs stray or invalid light, improving the quality of the effective light signal entering the photodetector and thus enhancing PPG detection accuracy. The light-absorbing layer can be applied to the outer surface of the light-blocking partition 31 via screen printing; the layer may, but is not limited to, ink. Optionally, the light-absorbing layer can be applied to the outer surface of the light-blocking partition 31 via coating. It is understood that the light-absorbing layer can also be omitted, and the outer surface of the light-blocking partition 31 can be directly frosted to form multiple protrusions and / or depressions. These protrusions and / or depressions increase the number of reflections of invalid light, thereby reducing the amount of invalid light entering the photodetector. The size of the protrusions and / or depressions may, but is not limited to, the micrometer scale.

[0181] Please continue reading. Figure 18B For example, the detection component 100 may also include a light-shielding layer 24 disposed on the side of the transparent cover 21 facing the detection circuit board 27. The light-shielding layer 24 has a light-transmitting area corresponding to the first viewing window 226 and the second viewing window 227, and the light-transmitting area is used for light transmission. Figure 18B The second part 223, facing the detection circuit board 27, has a black film structure called a light-shielding layer 24. The light-shielding layer 24 reduces stray or invalid light from the transparent cover 21 away from the light-shielding layer 24 from entering the detection component 100, thereby improving the quality of effective light entering the photodetector and thus improving PPG detection accuracy. The material of the light-shielding layer 24 can be ink. It is understood that this application does not limit the material of the light-shielding layer 24; for example, the material of the light-shielding layer 24 can also be metal, foam, rubber, silicone, or other light-shielding materials.

[0182] It should be noted that, Figure 17 , Figure 18A and Figure 18B The examples used here are all non-transparent electrodes in electrode layer 22. This application is not limited to this. For example, Figure 18C As shown, the electrode layer 22 can be a transparent electrode, and the detection component 100 may also include a decorative layer 23, which is located between the second mounting surface 213 and the second portion 223. The light-shielding layer 24 is located on the side of the second portion 223 away from the decorative layer 23. Both the decorative layer 23 and the light-shielding layer 24 have light-transmitting areas corresponding to the areas where the first viewing window 226 and the second viewing window 227 are located. Figure 18CThe white marking area covering the outer surface of the transparent cover plate 21 is the transparent electrode. The dark gray marking area between the second mounting surface 213 and the second part 223 is the decorative layer 23. The black film layer attached to the second part 223 facing the detection circuit board 27 is the light-shielding layer 24. The materials of the decorative layer 23 and the light-shielding layer 24 can be ink. The color of the decorative layer 23 can be different from the color of the light-shielding layer 24, and the color of the light-shielding layer 24 can be black. Since the electrode layer 22 and the transparent cover plate 21 are both transparent structures, the decorative layer 23 can be seen through the first part 221 and the transparent cover plate 21. The decorative layer 23 can shield the first optical element 28, the second optical element 29, the detection circuit board 27, and other devices to prevent the user from seeing them from the outside, thus not affecting the overall structure of the terminal device 1000 and improving the user experience.

[0183] Optionally, the material of the decorative layer 23 may be different from that of the light-shielding layer 24. For example, the light transmittance of the decorative layer 23 may be greater than that of the light-shielding layer.

[0184] It should be noted that, Figure 18C The electrode layer 22 in this application is a transparent electrode, but this application is not limited to this. For example, the first part 221 and the second part 223 of the electrode layer 22 can be transparent electrodes. The decorative layer 23 can include a preset hollow structure. The light-shielding layer 24 can be seen through the first part 221, the transparent cover plate 21, the preset hollow structure of the decorative layer 23, and the second part 223. By combining the preset hollow structure with the light-shielding layer 24, a decorative effect with a preset pattern can be presented, so that the light-shielding layer 24 can provide a decorative effect while providing light protection, in conjunction with the decorative layer 23. For another example, the first part 221 of the electrode layer 22 can be a transparent electrode, and the second part 223 can be a non-transparent electrode. The light-shielding layer 24 can be omitted from the detection component 100, and the decorative layer 23 can be used for light protection. The decorative layer 23 can be directly seen through the first part 221 and the transparent cover plate 21. The decorative layer 23 provides light protection while providing decoration, which improves the decorative effect and effective light quality, and simplifies the structure of the detection component 100.

[0185] For example, the detection component 100 further includes a conductive element 40 connected between the second portion 223 and the detection circuit board 27 to achieve an electrical connection between the electrode layer 22 and the detection circuit board 27. The detection circuit board 27 is electrically connected to the main circuit board 220.

[0186] It should be noted that, Figure 18C In the example, the conductive element 40 is located outside the light-blocking structure 30 and is spaced apart from the light-blocking structure 30. It is understood that this application does not limit the position of the conductive element 40. For example, please refer to... Figure 19A channel 35 can be provided within the light-blocking structure 30, through which a conductive element 40 passes. The conductive element 40 is electrically connected between the second part 223 of the electrode layer 22 and the detection circuit board 27. By utilizing the space of the light-blocking structure 30 to set and hide the conductive element 40, on the one hand, the area of ​​the detection circuit board 27 occupied by the conductive element 40 can be reduced; on the other hand, since the conductive element 40 is located inside the light-blocking structure 30, it is protected by the light-blocking structure 30, thereby improving the reliability of the electrical connection between the electrode layer 22 and the detection circuit board 27. Alternatively, the conductive element 40 can be directly attached to the outer surface of the light-blocking structure 30, so that the light-blocking structure 30 supports the conductive element 40, which also helps to improve the reliability of the electrical connection between the electrode layer 22 and the detection circuit board 27.

[0187] For example, the transparent cover 21 can be a curved structure or a flat structure. Figure 17 The transparent cover plate 21 shown in the illustration has a curved surface structure. Figure 18A , Figure 18B , Figure 18C and Figure 19 The transparent cover plate 21 shown is a flat plate structure.

[0188] It should be noted that, Figure 18A , Figure 18B , Figure 18C and Figure 19 The detection component 100 in the example integrates ECG detection and optical elements. This application is not limited to this; the detection component 100 can also be equipped with more types of sensors to integrate multiple detections for user convenience. For example, multiple detections include at least one of blood pressure, blood oxygen, heart rate, heart rhythm, heart rate variability, and temperature. Exemplarily, the detection component 100 also includes a pressure sensor 130B disposed on the side of the transparent cover 21 facing the detection circuit board 27 (e.g., ...). Figure 1 As shown, pressure sensor 130B is electrically connected to detection circuit board 27. Pressure sensor 130B is used to detect the pressure applied by the user on electrode layer 22. Pressure sensor 130B generates a pressure signal when it detects pressure. When the user's finger presses the transparent cover 21, pressure sensor 130B and electrode layer 22 can work simultaneously. This pressure signal can be used to assist ECG detection and improve the accuracy of ECG detection. For example, detection component 100 also includes a temperature sensor, which is electrically connected to detection circuit board 27 and is used to detect the user's temperature.

[0189] It should be noted that, Figure 18A , Figure 18B , Figure 18C and Figure 19The following description uses the detection component 100, which has a first window 226 and a second window 227, as an example. It should be understood that the number of windows is not limited to this; in the embodiments described in this application, there can be one or more windows. For example, please refer to... Figure 20 This application also provides a method for forming a window on a detection component 100, comprising the following:

[0190] S101, with a transparent cover 21.

[0191] For example, such as Figure 21A As shown, the outer surface of the transparent cover 21 includes a first mounting surface 211, a second mounting surface 213, and a connecting surface 215. The first mounting surface 211, the second mounting surface 213, and the connecting surface 215 are described above and will not be repeated here.

[0192] S102, an electrode layer 22 is formed by depositing a film on the outer surface of the transparent cover plate 21. The deposition method can be referred to the previous description and will not be repeated here.

[0193] For example, such as Figure 21B The light gray area shown represents electrode layer 22, which can be a non-transparent electrode. It is understood that this application does not limit electrode layer 22 to being a non-transparent electrode; optionally, electrode layer 22 can include both non-transparent and transparent electrodes, for example, covering the first mounting surface 211 of the transparent cover plate 21 (e.g., ...). Figure 21A (as shown) and the second mounting surface 213 (as shown) Figure 21A The electrode layer 22 (as shown) is a non-transparent electrode, covering the connection surface 215 of the transparent cover plate 21 (as shown). Figure 21A The electrode layer shown is a transparent electrode; see the previous text for details. Figures 13-15 The relevant descriptions will not be repeated here.

[0194] S103, laser formation is performed in a preset area to form a window or other area not covered by the electrode layer. That is, the area where the window is located may not be covered by the electrode layer 22.

[0195] For example, such as Figure 21C As shown, the white-marked area represents the window formed after laser etching of the electrode layer 22. For example, the preset area may include a first preset area, a second preset area, and a third preset area; the window may include a first window 226 and a second window 227. The first window 226 is formed by laser etching in the first preset area, the second window 227 is formed by laser etching in the second preset area, and the area 229 not covering the electrode layer 22 is formed by laser etching in the third preset area. The first window 226 and the second window 227 may be located on the first mounting surface 211 of the transparent cover plate 21 (e.g., ...). Figure 21AAs shown), region 229 can be located on the connecting surface 215. It is understood that this application does not limit the location of the window and region 229; for example, region 229 can also be located on the first mounting surface 211 (e.g., ...). Figure 21A (as shown), or, the first window 226 and the second window 227 are also located on the connecting surface 215 (as shown). Figure 21A (as shown); for example, Figure 21C The first window 226 and the second window 227 are circular, and the region 229 is a long strip. This application does not limit the shape of the window and the region 229. For example, the window and the region 229 can be square, triangle or other regular or irregular shapes; the number of regions 229 can be one, two or more.

[0196] The window is formed by directly removing the electrode layer 22 in a predetermined area using laser technology, without needing to cover it with any shielding material on the transparent cover plate 21. This reduces the steps involved in forming the window on the detection component 100 and improves manufacturing efficiency. It should be noted that this application does not limit the method of forming the window on the detection component 100. For example, the window can be formed without removing part of the electrode layer 22 using laser technology, instead by shielding the predetermined area during film deposition. For an example, please refer to [link to relevant documentation]. Figure 22 The method for forming a window on the detection component 100 includes the following:

[0197] S201, with a transparent cover 21.

[0198] The description of the provided transparent cover 21 can be found in the section about Figure 21A The description of that will not be repeated here.

[0199] S202, a shielding layer is covered in a preset area of ​​the transparent cover plate 21.

[0200] For example, such as Figure 23A The area shown in dark gray represents the shielding layer. The shielding layer includes a first shielding layer 2171, a second shielding layer 2173, and a third shielding layer 2175. The first shielding layer 2171 and the second shielding layer 2173 are located on the first mounting surface 211, and the third shielding layer 2175 is located on the connecting surface 215. Please refer to... Figure 23A , Figure 23B and Figure 23C The first occlusion layer 2171 and the second occlusion layer 2173 correspond to the first window 226 and the second window 227, respectively, and the third occlusion layer 2175 corresponds to the area 229.

[0201] S203, an electrode layer 22 is formed by depositing a film on the outer surface of the transparent cover plate 21. For example, such as... Figure 23BThe light gray area represents electrode layer 22, and the area enclosed by the dashed line represents the shielding layer, which is covered by electrode layer 22. For example, the electrode layer can cover the shielding layers corresponding to the first window 226 and the second window 227, i.e., cover the first shielding layer 2171, the second shielding layer 2173, and the third shielding layer 2175. In some possible implementations, the shielding layer is avoided during coating, for example, the dark gray area is avoided.

[0202] S204, the obscuring layer is removed, and the electrode layer 22 forms a window or other area where the electrode is not covered. The window may include a first window 226 and a second window 227. Other areas where the electrode is not covered may be, for example, area 229. For ease of explanation, the window and other areas where the electrode is not covered are collectively referred to as non-electrode areas.

[0203] Optionally, in one embodiment, laser lithography is not required after the electrode layer 22 is formed, nor is masking required before the electrode layer 22 is formed. Instead, the predetermined area where the window needs to be formed is avoided during the formation of the electrode layer 22. For example, region 229 may not be masked or laser lithographically ...

[0204] It should be noted that, Figure 21A , Figure 21B , Figure 21C , Figure 23A , Figure 23B and Figure 23C The transparent cover plate 21 has a curved surface structure. It is understood that this application does not limit the shape of the transparent cover plate 21; for example, the transparent cover plate 21 may be a flat plate structure.

[0205] The detection component 100 and terminal device 1000 provided in this application include a transparent cover plate 21 and an electrode layer 22 covering at least a portion of the transparent cover plate 21. The electrode layer 22 serves to conduct electrical signals. Other sensors, such as optical sensors and mechanical sensors, can also be arranged near the electrode layer 22 to form a finger health detection module, allowing users to perform one-click comprehensive health parameter detection (blood pressure, blood oxygen, heart rate, heart rhythm, heart rate variability, ECG, temperature). To realize or optimize the functions of the other sensors mentioned above, other coatings or components, including but not limited to Fresnel films and inks, can also be attached to the electrode surface. The conduction of the electrode layers 22 on both sides of the transparent cover plate 21 can be connected from the side of the transparent cover plate 21 to the bottom, or other conduction schemes can be supported, such as conduction to the bottom through micropores on the transparent cover plate 21. Different electrode appearance effects can be achieved by different coating materials of the electrode layers 22 and the ink printing effects on the surface.

[0206] Where there is no conflict or contradiction, the various embodiments of this application can be combined with each other. It should be understood that expressions such as "comprising" and "may include" used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" can be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0207] Furthermore, in this application, the expression "and / or" includes any and all combinations of the associated listed words. For example, the expression "A and / or B" may include A, may include B, or may include both A and B.

[0208] In this application, expressions including ordinal numbers such as "first" and "second" may modify the elements. However, such elements are not limited by the foregoing expressions. For example, the foregoing expressions do not limit the order and / or importance of the elements. The foregoing expressions are only used to distinguish one element from other elements. For example, "first user equipment" and "second user equipment" refer to different user equipment, although both "first user equipment" and "second user equipment" are user equipment. Similarly, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0209] When a component is referred to as "connected" or "accessed" to other components, it should be understood that this component not only connects directly to or accesses other components, but also that another component may exist between this component and other components. On the other hand, when a component is referred to as "directly connected" or "directly accessed" to other components, it should be understood that no component exists between them.

[0210] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A detection component (100), characterized in that, The detection component (100) is applied to a terminal device (1000), which includes a screen (140) and a housing (210). The outer surface of the housing (210) includes a wearable surface (202) and a side surface (203) connected to each other. The screen (140) and the wearable surface (202) are disposed opposite to each other. The detection component (100) is used to be installed on the side (203). The detection component (100) includes a transparent cover plate (21) and an electrode layer (22). The electrode layer (22) covers at least a portion of the surface of the transparent cover plate (21). The electrode layer (22) is used to collect the user's electrical signal for ECG detection.

2. The detection component (100) according to claim 1, characterized in that, The outer surface of the transparent cover (21) includes a first mounting surface (211) and a second mounting surface (213) disposed opposite to each other. The first mounting surface (211) is used to expose the housing (210). The electrode layer (22) includes a first part (221), a second part (223) and a third part (225) electrically connected. The first part (221) covers at least a portion of the first mounting surface (211). The second part (223) is located on the side where the second mounting surface (213) is located. The third part (225) is electrically connected to the first part (221) and the second part (223).

3. The detection component (100) according to claim 2, characterized in that, The second part (223) covers the second mounting surface (213).

4. The detection component (100) according to claim 2, characterized in that, The outer surface of the transparent cover (21) also includes a connecting surface (215), one end of which is connected to the first mounting surface (211), and the other end of which is connected to the second mounting surface (213). The third part (225) covers at least a portion of the connecting surface (215).

5. The detection component (100) according to claim 4, characterized in that, The transparent cover plate (21) is also provided with a through hole (216) that passes through the first mounting surface (211) and the second mounting surface (213), and the third part (225) is disposed in the through hole (216).

6. The detection component (100) according to claim 2, characterized in that, The color of the first part (221) is different from the color of the second part (223).

7. The detection component (100) according to claim 2, characterized in that, The first part (221) is a transparent electrode; the second part (223) is either a transparent electrode or a non-transparent electrode.

8. The detection component (100) according to claim 7, characterized in that, The detection component (100) further includes a decorative layer (23) covering the second mounting surface (213), and the second portion (223) covering the side of the decorative layer (23) opposite to the transparent cover plate (21).

9. The detection component (100) according to claim 2, characterized in that, The detection component (100) further includes a conductive element (40), one end of which is electrically connected to the second part (223), and the other end of which is used to be electrically connected to the main circuit board (220) of the terminal device (1000).

10. The detection component (100) according to claim 1, characterized in that, The transparent cover (21) includes a curved surface.

11. The detection component (100) according to claim 1, characterized in that, The electrode layer (22) is formed on the transparent cover plate (21) by a coating process.

12. The detection component (100) according to claim 1, characterized in that, The thickness of the electrode layer (22) ranges from 0.5 μm to 3 μm.

13. The detection component (100) according to claim 1, characterized in that, The detection component (100) further includes a detection circuit board (27), and the electrode layer (22) is electrically connected to the detection circuit board (27).

14. The detection component (100) according to claim 13, characterized in that, The detection circuit board (27) and the transparent cover plate (21) are stacked along the thickness direction of the detection circuit board (27). The detection component (100) is provided with a first viewing window (226); the detection component (100) also includes a first optical element (28) disposed on the side of the detection circuit board (27) facing the transparent cover plate (21), and the first optical element (28) is electrically connected to the detection circuit board (27); Light enters the first optical element (28) through the first window (226), or light emitted by the first optical element (28) exits through the first window (226) to the outside of the detection component (100).

15. The detection component (100) according to claim 14, characterized in that, The electrode layer (22) is a non-transparent electrode, and the first window (226) is a through hole penetrating the non-transparent electrode.

16. The detection component (100) according to claim 14, characterized in that, The detection component (100) further includes a first Fresnel membrane (25), which is located in the first viewing window (226) and light can pass through the first Fresnel membrane (25).

17. The detection component (100) according to claim 14, characterized in that, The detection component (100) is provided with a second viewing window (227); The detection component (100) further includes a second optical element (29), which is disposed on the side of the detection circuit board (27) facing the transparent cover plate (21) and is electrically connected to the detection circuit board (27). The first optical element (28) is a light source, and the second optical element (29) is a photodetector. The light signal emitted by the light source is emitted from the first window (226) to the user, and the light signal reflected by the user passes through the second window (227) and is then emitted to the photodetector for PPG detection.

18. The detection component (100) according to claim 17, characterized in that, The detection component (100) also includes a light-blocking structure (30); The light-blocking structure (30) is connected between the transparent cover plate (21) and the detection circuit board (27), and the light-blocking structure (30) is located between the first optical element (28) and the second optical element (29).

19. The detection component (100) according to claim 18, characterized in that, The light-blocking structure (30) includes a light-blocking partition (31) and a light-shielding element (32). The light-blocking partition (31) is connected between the transparent cover plate (21) and the detection circuit board (27). The light-blocking barrier (31) and the transparent cover plate (21) are connected at the connection point, and / or the detection circuit board (27) and the transparent cover plate (21) are provided with the light-blocking material (32).

20. The detection component (100) according to claim 19, characterized in that, The outer surface of the light-blocking structure (30) is covered with a light-absorbing layer.

21. The detection component (100) according to claim 14, characterized in that, The detection component (100) further includes a light-shielding layer (24) disposed on the side of the transparent cover plate (21) facing the detection circuit board (27). The light-shielding layer (24) has a light-transmitting area corresponding to the first viewing window (226), and the light-transmitting area is used for light transmission.

22. The detection component (100) according to claim 13, characterized in that, The detection component (100) also includes a pressure sensor disposed on the side of the transparent cover (21) facing the detection circuit board (27), the pressure sensor being electrically connected to the detection circuit board (27), and the pressure sensor being used to detect the pressing pressure of the user pressing on the electrode layer (22).

23. The detection component (100) according to claim 13, characterized in that, The detection component (100) also includes a temperature sensor, which is electrically connected to the detection circuit board and is used to detect the user's temperature.

24. A terminal device (1000), characterized in that, The terminal device (1000) includes a device body (200) and a detection component (100) according to any one of claims 1-23, wherein the device body (200) includes the screen (140) and the housing (210).

25. The terminal device (1000) according to claim 24, characterized in that, The housing (210) further includes a first ECG electrode (204) and a second ECG electrode (205), which are spaced apart on the wearing surface (202). The first ECG electrode (204) and the second ECG electrode (205) are used to collect the user's electrical signals.

26. The terminal device (1000) according to claim 24 or 25, characterized in that, The terminal device (1000) is a watch or a bracelet.

Images