wearable devices

Abstract

This application discloses a wearable device, including: an electrode comprising a first surface, the first surface including a conductive region and a non-conductive region, the conductive region being used to contact a user's finger to collect electrical signals; a capacitive fingerprint sensor disposed near the non-conductive region, the capacitive fingerprint sensor being used to collect the user's fingerprint information when the user's finger contacts the non-conductive region; and an insulating layer disposed on the side of the capacitive fingerprint sensor near the first surface. This wearable device integrates the capacitive fingerprint sensor into the electrode, saving space and improving the integration level of the wearable device.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more particularly to a wearable device. Background Technology

[0002] Currently, with the continuous development of wearable devices such as smartwatches and smart bands, functional buttons with electrodes, such as electrocardiogram (ECG) devices, can be set on these devices to monitor the user's physical condition in real time.

[0003] At the same time, it is necessary to integrate fingerprint sensors into wearable devices for identity recognition, to meet the needs of payment scenarios and wear permission scenarios.

[0004] Fingerprint sensors are categorized into capacitive, ultrasonic, and optical types, each with limitations in size, space, and operating conditions.

[0005] Existing wearable devices only have electrodes. Adding a fingerprint sensor to wearable devices would affect the form factor and architecture of the wearable product, which is not conducive to improving the integration of the wearable product. Summary of the Invention

[0006] This application provides a wearable device that integrates electrodes and a capacitive fingerprint sensor into one unit, solving the problem of low integration.

[0007] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0008] This application provides a wearable device, including: an electrode comprising a first surface, the first surface including a conductive region and a non-conductive region, the conductive region being used to contact a user's finger to collect electrical signals; a capacitive fingerprint sensor disposed near the non-conductive region, the capacitive fingerprint sensor being used to collect the user's fingerprint information when the user's finger contacts the non-conductive region; and an insulating layer disposed on the side of the capacitive fingerprint sensor near the first surface. Thus, integrating the capacitive fingerprint sensor into the electrode saves space and improves the integration of the wearable device. Simultaneously, two types of information can be acquired through a single operation, reducing the number of user operations and making it more convenient to use.

[0009] In one alternative implementation, the conductive region surrounds the non-conductive region. This simplifies the arrangement of the non-conductive and conductive regions and reduces manufacturing complexity.

[0010] In one alternative implementation, the non-conductive region surrounds the conductive region. This simplifies the arrangement of the non-conductive and conductive regions and reduces manufacturing complexity.

[0011] In one alternative implementation, the non-conductive and conductive regions are distributed in a grid pattern. This results in a more uniform arrangement of the non-conductive and conductive regions, allowing the user's finger to better contact both the conductive and non-conductive regions.

[0012] In one alternative implementation, the non-conductive region and the conductive region are spaced apart. This simplifies the arrangement of the non-conductive and conductive regions and reduces manufacturing complexity.

[0013] In one optional implementation, the wearable device further includes a processor, wherein the capacitive fingerprint sensor is electrically connected to the processor via a second electrical connector, and the electrode is electrically connected to the processor via a first electrical connector. Thus, when the electrode is working, it transmits the acquired electrical signal to the processor via the first electrical connector to obtain the human body's electrical signal; when the capacitive fingerprint sensor is working, the electric field between the finger and the capacitive fingerprint sensor changes, and the capacitive fingerprint sensor can transmit the acquired fingerprint image to the motherboard via the second electrical connector.

[0014] In one optional implementation, the electrode includes a conductive layer disposed in the conductive region and electrically connected to the first electrical connector. Thus, human body electrical signals are acquired through the conductive layer, resulting in a simple structure and reduced manufacturing complexity.

[0015] In one alternative implementation, the electrode further includes a side plate and a base plate, with the conductive layer disposed opposite to the base plate and electrically connected to it via the side plate and the base plate. The first electrical connector is disposed on the surface of the base plate away from the conductive layer. Thus, the electrode adopts a touch-button structure, resulting in a simpler structure.

[0016] In one optional implementation, the electrode includes a pressing post, the conductive layer is electrically connected to the pressing post, the pressing post is opposite to the first electrical connector, and an elastic conductive portion is provided between the pressing post and the first electrical connector. The pressing post is used to squeeze the elastic conductive portion under external force, thereby making the electrode conductive with the first electrical connector. Thus, the electrode adopts a push-button structure, enriching the product form.

[0017] In one alternative implementation, a reinforcing plate is provided on the side of the capacitive fingerprint sensor away from the conductive layer. This reinforcing plate enhances the strength of the capacitive fingerprint sensor and prevents it from deforming under pressure.

[0018] In one alternative implementation, the surface of the insulating layer is provided with a groove, the conductive layer is disposed in the groove, and the area of ​​the insulating layer without the groove is located in the non-conductive area. This results in a smoother first surface and improves the user experience.

[0019] In one alternative implementation, the conductive layer is formed on the surface of the insulating layer by means of plating or coating. This simplifies the forming process of the conductive layer and reduces manufacturing complexity.

[0020] In one alternative implementation, the conductive layer has an opening located in the non-conductive region, and the insulating layer is disposed within the opening. This allows for the modification of existing conductive layers to create the opening, resulting in better versatility.

[0021] In one alternative implementation, the thickness of the conductive layer is 5μm-10μm. This small conductive layer thickness is beneficial for improving the integration of wearable devices.

[0022] In one alternative implementation, the conductive layer is made of at least one of a metal or graphene. This improves the conductivity of the conductive layer.

[0023] In one alternative implementation, the insulating layer is made of at least one of the following materials: epoxy resin, ink, glass cover, silicon nitride, and silicon oxide. This improves the insulating properties of the insulating layer.

[0024] In one alternative implementation, the second electrical connector is disposed on the side of the capacitive fingerprint sensor away from the first surface. This improves the electrical connection stability of the capacitive fingerprint sensor.

[0025] In one alternative implementation, the electrode is made of an insulating material, and its outer surface is covered with a conductive film. This allows for a more flexible electrode structure and the use of a wider range of materials.

[0026] In one alternative implementation, the conductive film is made of indium tin oxide (ITO). This improves the conductivity of the conductive film.

[0027] In one optional implementation, the electrode includes an electrocardiogram (ECG) electrode used to acquire the user's electrocardiogram (ECG) signal. Thus, the user's ECG information can be acquired simultaneously with their fingerprint.

[0028] In one alternative implementation, the wearable device further includes a display screen for displaying the electrocardiogram (ECG) signal acquired by the ECG electrode. This allows for a more intuitive display of the user's ECG information, improving the user experience.

[0029] In one alternative implementation, the wearable device includes a smartwatch and a smart bracelet. This results in a diverse range of wearable device products. By integrating a capacitive fingerprint sensor into the electrodes of the wearable product, the functionality of the wearable product is enriched while having minimal impact on the overall architecture, thus improving the user experience.

[0030] The wearable device provided in this application includes: electrodes and a capacitive fingerprint sensor integrated in the electrodes. The electrodes are used to contact a user's finger to collect electrical signals, and the capacitive fingerprint sensor is used to collect the user's fingerprint information. The electrodes can adopt a touch-button structure or a press-button structure. By integrating a capacitive fingerprint sensor into the electrodes of the wearable product, the functionality of the wearable product is enriched, and the integration is high with minimal impact on the overall architecture, thus improving the user experience. Simultaneously, two types of information can be obtained through a single operation, reducing the number of user operations and making it more convenient to use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a wearable device provided in an embodiment of this application;

[0032] Figure 2 for Figure 1 A simplified diagram of the central dial structure;

[0033] Figure 3 A schematic diagram of the structure of a function button provided in an embodiment of this application;

[0034] Figure 4 for Figure 3 AA section view in the middle;

[0035] Figure 5 A diagram showing the positional relationship between a first type of conductive region and a non-conductive region provided in an embodiment of this application;

[0036] Figure 6 A diagram showing the positional relationship between a second type of conductive region and a non-conductive region provided in an embodiment of this application;

[0037] Figure 7a A third type of positional relationship diagram of conductive and non-conductive regions provided in the embodiments of this application;

[0038] Figure 7b A fourth type of positional relationship diagram of conductive and non-conductive regions provided in the embodiments of this application;

[0039] Figure 8 A fifth type of positional relationship diagram of conductive and non-conductive regions provided in the embodiments of this application;

[0040] Figure 9 A cross-sectional view of the first type of touch button provided in Example 1 of this application;

[0041] Figure 10 This is a schematic diagram of the structure of the first type of electrode provided in Example 1 of this application;

[0042] Figure 11 This is a schematic diagram of the structure of the second type of electrode provided in Example 1 of this application;

[0043] Figure 12 This is a schematic diagram of the structure of the third type of electrode provided in Example 1 of this application;

[0044] Figure 13 A cross-sectional view of the second type of touch button provided in Example 1 of this application;

[0045] Figure 14 A cross-sectional view of the third type of touch button provided in Example 1 of this application;

[0046] Figure 15 A cross-sectional view of the fourth type of touch button provided in Example 1 of this application;

[0047] Figure 16 A cross-sectional view of the fifth type of touch button provided in Example 1 of this application;

[0048] Figure 17 This is a cross-sectional view of a push-button provided in Example 2 of this application;

[0049] Figure 18 This is a schematic diagram of the structure of an electrode provided in Example 2 of this application;

[0050] Figure 19 This is a schematic diagram of another electrode structure provided in Example 2 of this application;

[0051] Figure 20 This is a structural block diagram of a wearable device provided in an embodiment of this application. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0053] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0054] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0055] Currently, some smart wearable devices, such as smart bracelets or watches, have function buttons.

[0056] This application provides a wearable device 1. In some embodiments, the wearable device 1 may be a watch or a smart bracelet, etc.

[0057] The wearable device provided in the embodiments of this application will be described below with reference to the accompanying drawings. Figure 1 This is a schematic diagram of the structure of a wearable device provided in an embodiment of this application. Figure 1 As shown, the wearable device 1 includes a main body 11 and a fixing part 12, with the main body 11 and the fixing part 12 fixedly connected. The main body 11 may include, but is not limited to, the watch face of a smartwatch. Figure 3 When the main body 11 is a watch face, the wearable device may also include a watch strap connected to the watch face for easy wearing on the wrist. Additionally, the watch face may include a housing, which may be a single housing component or composed of more than two housing components. One or more housing components may be made of metal, plastic, ceramic, crystal, or other types of housing components, or a combination of these materials, etc. Function buttons 10 (e.g., time adjustment buttons) are also provided on the watch face housing. The structural configuration of this wearable device will be described in detail below with reference to the accompanying drawings.

[0058] In some embodiments, such as Figure 2 As shown, the function button 10 includes at least one electrode 101.

[0059] In some embodiments of this application, the wearable device 1 includes an electrode 101, which may be disposed on the outer shell (e.g., a metal shell) of the body 11 for user use.

[0060] This application does not limit the function of the electrode 101. In some embodiments of this application, the electrode 101 may be an electrocardiogram (ECG) electrode. The ECG electrode is used to acquire electrical signals from the human body. In use, when the user wears the aforementioned body 11, they can detect the human electrocardiogram by touching the electrode 101.

[0061] The following describes the specific ECG signal detection process using the main body 11 as the dial and the electrodes 101 as being disposed on the outer casing of the main body 11 as an example: The user wears the main body 11 on their left wrist, and the user's right hand fingers touch the electrodes 101 on the outer casing of the main body 11 to perform ECG detection. Additionally, a display screen can be installed on the main body 11 to display the ECG detection results.

[0062] Figure 3 This is a schematic diagram of the structure of the function buttons provided in an embodiment of this application. For example... Figure 3As shown, in some embodiments of this application, part of the edge of the electrode 101 is arc-shaped, and the surface of the electrode 101 can be shaped similarly to the user's finger, so that the user's finger can better fit the surface of the electrode 101.

[0063] In some embodiments of this application, the wearable device 1 further includes a fingerprint sensor, wherein the fingerprint sensor is classified into capacitive, ultrasonic, optical, etc., all of which have certain constraints on size, space, and operating conditions. To improve the integration of the wearable device 1, the fingerprint sensor and the aforementioned electrode 101 can be integrated together to form a function button 10.

[0064] In this application, a capacitive fingerprint sensor is used as an example to illustrate the integrated structure of the fingerprint sensor and the electrode 101.

[0065] Figure 4 for Figure 3 AA section view in the image. Figure 4 As shown, the function button 10 includes: an electrode 101, a capacitive fingerprint sensor 102, and an insulating layer 103.

[0066] Electrode 101 includes a conductive region 1002 and a non-conductive region 1001, the conductive region 1002 and the non-conductive region 1001 being located on the same surface, the surface being used to contact the user's finger 20.

[0067] The conductive area 1002 is used to contact the user's finger to collect electrical signals. During operation, the electrode 101 is energized. After the user's finger 20 contacts the conductive area 1002, the electrical signal (current or impedance) of the electrode 101 changes. The wearable device can obtain the electrocardiogram information of the human body based on the changed current.

[0068] A capacitive fingerprint sensor 102 is positioned near a non-conductive area 1001, and an insulating layer 103 is positioned on the side of the capacitive fingerprint sensor 102 near the non-conductive area 1001. The capacitive fingerprint sensor 102 is used to collect the user's fingerprint information when the user's finger 20 comes into contact with the non-conductive area 1001.

[0069] The insulating layer 103 can serve as a medium to fill the air layer between the user's finger 20 and the capacitive fingerprint sensor 102, facilitating the capacitive fingerprint sensor 102 to acquire the user's fingerprint image.

[0070] When in operation, the capacitive fingerprint sensor 102 is powered on. After the user's finger 20 touches the non-conductive area 1001, the electric field between the user's finger 20 and the capacitive fingerprint sensor 102 changes. The wearable device can obtain the user's fingerprint information based on the changed electric field.

[0071] Therefore, integrating the capacitive fingerprint sensor into the electrode of the wearable device improves the integration level of the wearable device. Furthermore, when the user touches the electrode 101, the electrode 101 collects electrical signals through the conductive area 1002, and the capacitive fingerprint sensor 102 can simultaneously acquire the user's fingerprint image. The electrode 101 and the capacitive fingerprint sensor 102 work synchronously, allowing for the acquisition of two types of information with a single operation, reducing the number of user operations and making it more convenient.

[0072] The embodiments of this application do not limit the material of the insulating layer 103. The materials of the insulating layer 103 include: epoxy molding compound (EMC) resin, ink, glass cover, silicon nitride, silicon oxide and other insulating materials.

[0073] Therefore, by providing an insulating layer 103 between the capacitive fingerprint sensor 102 and the electrode 101, the insulating layer 103 can serve as a medium, which can prevent the generation of an air layer (bubbles, inert gas, etc.) between the capacitive fingerprint sensor 102 and the electrode 101, thereby improving the measurement accuracy of the capacitive fingerprint sensor 102.

[0074] The material of the electrode is not limited in this application embodiment. In some embodiments, the electrode 101 is made of a conductive material.

[0075] The electrode 101 is made of at least one of the following materials: aluminum alloy, titanium alloy, and graphene.

[0076] In other embodiments, electrode 101 is made of an insulating material, and its outer surface is covered with a conductive film. This provides greater choice in electrode materials.

[0077] The conductive film is made of materials including indium tin oxide.

[0078] This application does not limit the structure and driving method of the capacitive fingerprint sensor. In some embodiments of this application, the material of the piezoelectric layer of the capacitive fingerprint sensor includes at least one of lead zirconatetitanate piezoelectric ceramics (PZT), poly(vinylidene fluoride) (PVDF) piezoelectric film, and aluminum nitride (AlN) film.

[0079] The driving circuit of a capacitive fingerprint sensor includes: a thin film transistor (TFT) driving circuit and a complementary metal-oxide-semiconductor (CMOS-IC) chip driving circuit.

[0080] This application does not limit the structure of the non-conductive region 1001 and the conductive region 1002 in its embodiments. For example... Figure 4 As shown, the electrode 101 includes, for example, a conductive layer 1011, which is located in the conductive region 1002. Thus, the electrode 101 can acquire human body electrical signals through the conductive layer 1011, which has a simple structure and reduces production difficulty.

[0081] The thickness of the conductive layer 1011 in this embodiment is not limited, and the thickness of the conductive layer 1011 is 0.1 μm-10 mm. In some embodiments, it can be 5 μm-10 μm.

[0082] A portion of the aforementioned insulating layer 103 may be disposed in the non-conductive region 1001. This insulating layer 103 can be used not only as a dielectric layer in the capacitive fingerprint sensor 102, but also exposed on the first surface of the electrode 101, forming a non-conductive region 1001 on the first surface of the electrode 101.

[0083] In addition, the ink color of the non-conductive area 1001 can be adjusted as needed to make the insulating layer 103 of the non-conductive area 1001 and the conductive layer 1011 of the conductive area 1002 have the same color.

[0084] The embodiments of this application do not limit the connection method of the conductive layer 1011 and the insulating layer 103.

[0085] In some embodiments of this application, the surface of the insulating layer 103 is provided with grooves, the conductive layer 1011 is disposed in the grooves, and the area of ​​the insulating layer 103 without grooves is located in the non-conductive area 1001. This makes the first surface of the electrode 101 smoother, improving the user experience.

[0086] In some other embodiments of this application, the conductive layer 1011 is formed on the surface of the insulating layer 103 by means of plating or coating. As a result, the forming method of the conductive layer 1011 is simple and the manufacturing difficulty is reduced.

[0087] For example, the conductive layer 1011 can be formed on the surface of the insulating layer 103 by a physical vapor deposition (PVD) coating process, and the coating material can be conductive materials such as gold (Au) or graphene.

[0088] In other embodiments of this application, the conductive layer 1011 has an opening located in the non-conductive region 1001, and the insulating layer 103 is disposed within the opening. This allows for modification of existing conductive layers to obtain the opening, resulting in better versatility.

[0089] The embodiments of this application do not limit the structure of electrode 101. In some embodiments of this application, see below. Figure 4 The electrode 101 also includes a side plate 10121 and a bottom plate 1013. The conductive layer 1011 is disposed opposite to the bottom plate 1013, and the conductive layer 1011, the side plate 10121 and the bottom plate 1013 form a cavity.

[0090] The conductive layer 1011 is electrically connected to the base plate 1013 through the side plate 10121.

[0091] A capacitive fingerprint sensor 102 is disposed in the cavity and is disposed close to the conductive layer 1011. The capacitive fingerprint sensor 102 is used to collect the user's fingerprint information when the user's finger is close to the conductive layer 1011.

[0092] The base plate 1013 has a first electrical connector 105 on the side away from the conductive layer 1011, and the capacitive fingerprint sensor 102 has a second electrical connector 106 on the side away from the insulating layer 103.

[0093] Wearable devices may also include, for example, a processor, with electrode 101 electrically connected to the processor via a first electrical connector 105, and capacitive fingerprint sensor 102 electrically connected to the processor via a second electrical connector 106.

[0094] The embodiments of this application do not limit the structure of the first electrical connector 105 and the second electrical connector 106. In some embodiments of this application, the first electrical connector 105 and the second electrical connector 106 are, for example, flexible printed circuit boards (FPCs).

[0095] When the electrode 101 is working, the conductive layer 1011 contacts the user's finger to collect electrical signals and transmit them to the processor to obtain a human electrocardiogram.

[0096] When a capacitive fingerprint sensor is working, it can acquire a fingerprint image through the ultrasonic waves reflected from the finger and transmit the fingerprint image to the processor. The processor can then perform identity recognition based on the fingerprint information to meet the needs of payment scenarios and wear authorization scenarios.

[0097] In some embodiments, the conductive layer 1011 is located in the conductive region 1002, and a portion of the insulating layer 103 is located in the non-conductive region 1002. The capacitive fingerprint sensor 102 is disposed on the side of the insulating layer 103 away from the conductive layer 1011, and the fingerprint sensor 102 is opposite to the non-conductive region 1001.

[0098] This application does not limit the positional relationship between the conductive region 1002 and the non-conductive region 1001 in the embodiments. In some embodiments, such as Figure 5As shown, the conductive region 1002 surrounds the non-conductive region 1001. Therefore, the non-conductive and conductive regions are arranged in a surrounding manner, resulting in a simpler structure and reduced manufacturing difficulty.

[0099] In other embodiments, such as Figure 6 As shown, the non-conductive region 1001 surrounds the conductive region 1002. This simplifies the arrangement of the non-conductive and conductive regions and reduces manufacturing complexity.

[0100] Or, such as Figure 7a , Figure 7b As shown, the non-conductive region 1001 and the conductive region 1002 are distributed in a grid pattern. This results in a more uniform distribution of the non-conductive and conductive regions, allowing the user's fingers to better contact both areas. For example, the conductive layer 1011 is formed on the surface of the insulating layer 103 by deposition or coating, and this conductive layer 1011 has a grid shape. The conductive layer 1011 is located in the conductive region 1002, while the areas of the insulating layer 103 where the conductive layer 1011 is not located are in the non-conductive region 1001.

[0101] For example, such as Figure 8 As shown, the non-conductive region 1001 and the conductive region 1002 are arranged alternately. This simplifies the arrangement of the non-conductive and conductive regions and reduces production difficulty.

[0102] It should be noted that, Figure 8 The non-conductive region 1001 and the conductive region 1002 each occupy half of the first surface, and the two are distributed in a complementary manner.

[0103] In other embodiments, the non-conductive region 1001 and the conductive region 1002 can be multiple regions, with multiple non-conductive regions 1001 and conductive regions 1002 alternately arranged in a striped distribution.

[0104] It should be noted that the stripes formed by the non-conductive region 1001 and the conductive region 1002 can be straight lines, broken lines, or curves, all of which fall within the scope of protection of this application.

[0105] This application does not limit the structure of the function button 10 in the embodiments. In some embodiments, such as Figure 9 As shown, the function button 10 adopts a touch-sensitive button structure. When using it, you only need to touch the conductive layer.

[0106] In other implementations, function button 10 adopts a push-button structure, allowing the user to press the conductive layer during use. For example... Figure 17As shown, the electrode also includes a pressing post 1014, which is electrically connected to the base plate 1013. The pressing post 1014 is opposite to the first electrical connector 105, and an elastic conductive portion 1015 is provided between the pressing post 1014 and the first electrical connector 105. During operation, the pressing post 1014 presses the elastic conductive portion 1015 under the action of external force, so that the electrode is connected to the first electrical connector 105.

[0107] The structure of electrode 101 and capacitive fingerprint sensor 102 will be described below with reference to Example 1 and Example 2.

[0108] Example 1:

[0109] Figure 9 This is a cross-sectional view of the first type of touch-sensitive button provided in Example 1. Figure 9 As shown, electrode 101 adopts a touch-sensitive structure, which includes: electrode 101, insulating layer 103 and capacitive fingerprint sensor 102.

[0110] This example does not limit the material of the electrodes. In some embodiments of this example, electrode 101 is made of a conductive material.

[0111] In some other embodiments of this example, electrode 101 is made of an insulating material and its surface is covered with a conductive film.

[0112] This example does not limit the specific structure of the electrode 101, which includes at least a conductive layer 1011. The conductive layer 1011 and the capacitive fingerprint sensor 102 are stacked together.

[0113] In some embodiments of this example, such as Figure 10 As shown, electrode 101 includes a conductive layer 1011, a side plate 10121, and a bottom plate 1013. The conductive layer 1011 is connected to the bottom plate 1013 through the side plate 10121. For example, there are four side plates 10121, which are connected in sequence to form a hexahedral structure with openings at both ends. The conductive layer 1011 and the bottom plate 1013 are disposed at the openings. The conductive layer 1011, the side plate 10121, and the bottom plate 1013 form a cavity, in which the capacitive fingerprint sensor 102 is disposed.

[0114] This example does not limit the connection method between the conductive layer 1011 and the side plate 10121. See some embodiments of this example. Figure 9 The side plate 10121 is provided with an overlapping part 1012, which overlaps the upper surface of the conductive layer 1011.

[0115] In some other embodiments of this example, the conductive layer 1011 covers the upper surface of the side plate 10121.

[0116] The base plate 1013 has a first electrical connector 105 on the side away from the conductive layer 1011, and the capacitive fingerprint sensor 102 has a second electrical connector 106 on the side away from the insulating layer 103.

[0117] One end of the side plate 10121 covers a portion of the conductive layer 1011, and the other end of the side plate 10121 is connected to the base plate 1013. The conductive layer 1011 can be electrically connected to the first electrical connector 105 in sequence through the side plate 10121 and the base plate 1013, and the capacitive fingerprint sensor 102 is connected to the second electrical connector 106.

[0118] Therefore, by placing the capacitive fingerprint sensor 102 in the cavity of the electrode 101, external impurities can be prevented from contacting the capacitive fingerprint sensor 102, thereby improving the measurement accuracy of the capacitive fingerprint sensor 102.

[0119] It should be noted that an opening can be provided on the cavity, through which the capacitive fingerprint sensor 102 and the insulating layer 103 enter the cavity.

[0120] Of course, it is also possible to not provide an additional opening. The capacitive fingerprint sensor 102 and the insulating layer 103 can enter the cavity through the opening on the conductive layer 1011, that is, the non-conductive area 1001.

[0121] Alternatively, the capacitive fingerprint sensor 102 and the insulating layer 103 can be first placed in the area enclosed by the side plate 10121 and the bottom plate 1013, and then a conductive layer 1011 can be placed on the surface of the insulating layer 103.

[0122] In some embodiments of this example, such as Figure 11 As shown, the base plate 1013 has an opening 10131, through which the capacitive fingerprint sensor can enter the cavity.

[0123] In other embodiments of this example, such as Figure 12 As shown, electrode 101 includes a conductive layer 1011, a connecting post 10122 and a base plate 1013. The conductive layer 1011 is connected to the base plate 1013 through the connecting post 10122.

[0124] The connection method between the conductive layer 1011 and the connecting post 10122 can refer to the connection method between the conductive layer 1011 and the side plate 10121 described above, and will not be repeated here.

[0125] The base plate 1013 has a first electrical connector 105 on the side away from the conductive layer 1011, and the capacitive fingerprint sensor 102 has a second electrical connector 106 on the side away from the insulating layer 103.

[0126] The conductive layer 1011 can be connected to the first electrical connector 105 in sequence through the connecting post 10122 and the base plate 1013, and the capacitive fingerprint sensor 102 is connected to the second electrical connector 106.

[0127] This example does not limit the number of connecting posts 10122, but there are at least two connecting posts 10122, symmetrically arranged on the top plate. In some embodiments of this example, there are two connecting posts 10122, arranged diagonally on the top plate.

[0128] In some embodiments of this example, there are four connecting posts 10122, which are respectively connected to the four corners of the conductive layer 1011 and the base plate 1013.

[0129] Therefore, by setting the connecting post 10122 to connect the conductive layer 1011 and the base plate 1013, the electrode structure is simpler.

[0130] In other embodiments of this example, electrode 101 includes only a conductive layer 1011, and capacitive fingerprint sensor 102 is stacked on top of electrode 101.

[0131] The capacitive fingerprint sensor 102 has a first electrical connector 105 and a second electrical connector 106 on its surface away from the conductive layer 1011.

[0132] The conductive layer 1011 can be connected to the first electrical connector 105 via a wire, and the capacitive fingerprint sensor 102 can be connected to the second electrical connector 106.

[0133] Therefore, by only setting the conductive layer 1011, electrode material is saved.

[0134] The touch button structure also includes a first surface for contact with a user's finger, the first surface including a conductive region 1002 and a non-conductive region 1001, wherein a conductive layer 1011 is located in the conductive region 1002 and an insulating layer 103 is located in the non-conductive region 1001.

[0135] The conductive layer 1011 is used to collect electrical signals by contacting the user's finger.

[0136] An insulating layer 103 is disposed, for example, between the capacitive fingerprint sensor 102 and the conductive layer 1011. The insulating layer 103 can serve as a medium to fill the air layer between the capacitive fingerprint sensor 102 and the conductive layer 1011, thereby facilitating the capacitive fingerprint sensor to acquire the user's fingerprint image.

[0137] A capacitive fingerprint sensor 102 is positioned close to a non-conductive area 1001. The capacitive fingerprint sensor 102 is used to collect the user's fingerprint information when the user's finger comes into contact with the non-conductive area 1001.

[0138] This example does not impose restrictions on the connection relationship between the insulating layer 103 and the conductive layer 1011.

[0139] In some embodiments of this example, the surface of the insulating layer 103 is provided with grooves, and the conductive layer 1011 is disposed in the grooves. The conductive layer 1011 is located in the conductive region 1002, and the area of ​​the insulating layer 103 without grooves is located in the non-conductive region 1001. This makes the first surface of the touch button structure smoother and improves the user experience.

[0140] In other embodiments of this example, the conductive layer 1011 is formed on the surface of the insulating layer 103 by means of plating or coating. The conductive layer 1011 is located in the conductive region 1002, and the region of the insulating layer 103 where the conductive layer 1011 is not provided is located in the non-conductive region 1001. Thus, the conductive layer forming method is simple and the production difficulty is reduced.

[0141] In other embodiments of this example, the conductive layer 1011 has an opening located in the non-conductive region 1001, and the insulating layer 103 is disposed in the opening. The area of ​​the conductive layer 1011 without an opening is located in the conductive region 1002, and the insulating layer 103 is located in the non-conductive region 1001. Therefore, existing conductive layers can be modified to obtain openings, resulting in better versatility.

[0142] This example does not restrict the positional relationship between the conductive layer 1011 and the insulating layer 103 on the first surface.

[0143] In some embodiments of this example, such as Figure 13 As shown, the conductive region 1002 surrounds the non-conductive region 1001. A conductive layer 1011 is disposed within the conductive region 1002, and this conductive layer 1011 can be connected to the first electrical connector 105 sequentially via the side plate 10121 and the bottom plate 1013. Therefore, the arrangement of the non-conductive and conductive regions is simpler, reducing manufacturing difficulty.

[0144] like Figure 14 As shown, a non-conductive region 1001 surrounds a conductive region 1002. A conductive layer 1011 is disposed within the conductive region 1002. This conductive layer 1011 can be electrically connected to a side plate 10121 via a through-hole in an insulating layer 103, and then connected to a first electrical connector 105 via a base plate 1013. This simplifies the arrangement of the non-conductive and conductive regions, reducing manufacturing complexity.

[0145] Or, such as Figure 15As shown, the non-conductive region 1001 and the conductive region 1002 are distributed in a grid pattern. A conductive layer 1011 is disposed within the conductive region 1002, and the conductive layer 1011 can be connected to the first electrical connector 105 in sequence through the side plate 10121 and the bottom plate 1013. As a result, the non-conductive and conductive regions are more evenly distributed, allowing the user's fingers to better contact the conductive and non-conductive regions.

[0146] For example, such as Figure 16 As shown, non-conductive region 1001 and conductive region 1002 are arranged alternately. Conductive layer 1011 is provided in conductive region 1002. The conductive layer 1011 can be connected to the first electrical connector 105 in sequence through side plate 10121 and bottom plate 1013. Thus, the arrangement of the non-conductive region and the conductive region is simpler, reducing the difficulty of production.

[0147] Therefore, in this example, electrode 101 is a touch button, which can be used simply by touching the first surface of the touch button structure.

[0148] Example 2:

[0149] Figure 17 This is a cross-sectional view of a push-button provided for Example 2. (See attached image.) Figure 17 As shown, the difference from Example 1 is that the electrode 101 in Example 2 adopts a push-button structure.

[0150] Next, refer to Figure 17 The push-button structure includes: an electrode 101, an insulating layer 103, and a capacitive fingerprint sensor 102.

[0151] The electrode 101 includes a conductive layer 1011, a capacitive fingerprint sensor 102, and the conductive layer 1011 stacked together.

[0152] The material of electrode 101, the connection relationship between insulating layer 103 and conductive layer 1011, and the relative positional relationship between insulating layer 103 and conductive layer 1011 can be referred to Example 1, and will not be repeated here.

[0153] Based on the structure of Example 1, the electrode 101 also includes a pressing post 1014 and a reinforcing plate 104.

[0154] The pressing post 1014 is electrically connected to the conductive layer 1011. The pressing post 1014 is opposite to the first electrical connector 105. An elastic conductive part 1015 is provided between the pressing post 1014 and the second electrical connector 106. The elastic conductive part 1015 is electrically connected to the first electrical connector 105.

[0155] This example does not limit the structure of the elastic conductive part 1015. The elastic conductive part 1015 can be a trigger switch, such as a button membrane (DOME).

[0156] During operation, the pressing column 1014 squeezes the elastic conductive part 1015 under the action of external force, so that the electrode 101 is connected to the first electrical connector 105.

[0157] The reinforcing plate 104 is disposed on the side of the capacitive fingerprint sensor 104 away from the insulating layer 103, for example, on the surface of the first electrical connector 105 away from the capacitive fingerprint sensor 102.

[0158] The reinforcing plate 104 can be made of steel. The reinforcing plate 104 can be used to improve the mechanical strength of the capacitive fingerprint sensor 102 and prevent the capacitive fingerprint sensor 104 from deforming under external force.

[0159] Figure 18 This is a schematic diagram of another electrode structure provided in Example 2 of this application. For example, as shown... Figure 18 As shown, electrode 101 includes a conductive layer 1011, side plates 10121, and a base plate 1013. The conductive layer 1011 is connected to the base plate 1013 through the side plates 10121. For example, there are four side plates 10121. The conductive layer 1011, side plates 10121, and base plate 1013 form a cavity, in which a capacitive fingerprint sensor 102 is disposed. A pressing post 1014 is disposed on the side of the base plate 1013 away from the conductive layer 1011, and the pressing post 1014 is connected to the base plate 1013.

[0160] Therefore, by placing the capacitive fingerprint sensor 102 in the cavity of the electrode 101, external impurities can be prevented from contacting the capacitive fingerprint sensor 102, thereby improving the measurement accuracy of the capacitive fingerprint sensor 102.

[0161] It should be noted that the cavity has at least one opening, through which the capacitive fingerprint sensor 102 enters the cavity.

[0162] Figure 19 This is a schematic diagram of another electrode structure provided in Example 2 of this application. Figure 19 As shown, electrode 101 includes a conductive layer 1011, a connecting post 10122, and a base plate 1013. The conductive layer 1011 is connected to the base plate 1013 through the connecting post 10122. A pressing post 1014 is disposed on the side of the base plate 1013 away from the conductive layer 1011, and the pressing post 1014 is connected to the base plate 1013.

[0163] This example does not limit the number of connecting posts 10122, but there are at least two connecting posts 10122, symmetrically arranged on the top plate. In some embodiments of this example, there are two connecting posts 10122, arranged diagonally on the top plate.

[0164] In some embodiments of this example, there are four connecting posts 10122, which are respectively connected to the four corners of the conductive layer 1011 and the base plate 1013.

[0165] Therefore, by setting the connecting post 10122 to connect the conductive layer 1011 and the base plate 1013, the electrode structure is simpler.

[0166] In this example, the pressing post 1014 is electrically connected to the base plate 1013, and the pressing post 1014 is opposite to the first electrical connector 105. An elastic conductive part 1015 is provided between the pressing post 1014 and the first electrical connector 105. The pressing post 1014 is used to squeeze the elastic conductive part 1015 under the action of external force, so that the conductive layer 1011 is connected to the first electrical connector 105.

[0167] This application does not limit the connection method between the pressing post 1014 and the base plate 1013. In some embodiments of this example, the pressing post 1014 and the base plate 1013 can be integrally formed.

[0168] In some other embodiments of this example, the pressing post 1014 and the base plate 1013 may be bonded together with conductive adhesive.

[0169] Therefore, in this example, electrode 101 is a push-button type, which the user can press on the first surface of when in use.

[0170] The wearable device provided in this application includes: electrodes and a capacitive fingerprint sensor integrated in the electrodes. The electrodes are used to contact a user's finger to collect electrical signals, and the capacitive fingerprint sensor is used to collect the user's fingerprint information. The electrodes can adopt a touch-button structure or a press-button structure. By integrating a capacitive fingerprint sensor into the electrodes of the wearable product, the functionality of the wearable product is enriched, and the integration is high with minimal impact on the overall architecture, thus improving the user experience. Simultaneously, two types of information can be obtained through a single operation, reducing the number of user operations and making it more convenient to use.

[0171] Figure 20 This is a functional block diagram of a wearable device 1 provided in an embodiment of this application. (Refer to...) Figure 20 The wearable device 1 also includes a display screen 13, at least one processor 14, a communication bus 15, at least one communication interface 16, and a memory 17. It is understood that... Figure 20This is merely an example of a wearable device and does not constitute a limitation on wearable devices. Wearable devices may include more or fewer components than shown, or combinations of certain components, or different components. Although not shown, wearable devices may also include batteries, cameras, Bluetooth modules, Global Positioning System (GPS) modules, etc., which will not be elaborated here.

[0172] The processor 14 is communicatively connected to at least one communication interface 16, memory 17, and display screen 13 via a communication bus 15. The processor 14 can be a microcontroller unit (MCU), a central processing unit (CPU), or other general-purpose processors 14, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor 14 can be a microprocessor 14, or any conventional processor 14. The processor 14 is the control center of the wearable device, connecting all components of the wearable device via various interfaces and lines.

[0173] The display screen 13 can be used to display information input by the user or information provided to the user, as well as various menus of the wearable device. The display screen 13 can be in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0174] The communication bus 15 may include a path for transmitting information between the aforementioned components.

[0175] Communication interface 16 uses any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0176] The memory 17 can be used to store computer programs and / or modules. The processor 14 implements various functions of the wearable device by running or executing the computer programs and / or modules stored in the memory 17 and by accessing data stored in the memory 17. The memory 17 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for multiple functions (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the wearable device (such as audio data, phone book, etc.). In addition, the memory 17 may include high-speed random access memory 17, and may also include non-volatile memory 17, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, multiple disk storage devices 17, flash memory devices, or other volatile solid-state storage devices 17. The memory 17 may exist independently and be connected to the processor 14 via the communication bus 15. The memory 17 may also be integrated with the processor 14.

[0177] In a specific implementation, as one example, such as Figure 20 As shown, processor 14 may include an MCU and a CPU.

[0178] In a specific implementation, as one embodiment, the wearable device may include multiple processors 14, such as processor 14 and processor 101 in the figure. Each of these processors 14 may be a single-core (single-CPU) processor 14 or a multi-core (multi-CPU) processor 14. Here, processor 14 may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0179] In some embodiments, the wearable device further includes one or more electrodes 101, in which a capacitive fingerprint sensor 102 is integrated. The processor 14 can process the electrical signals detected by the electrodes 101 and the fingerprint information acquired by the capacitive fingerprint sensor 102 to obtain the user's electrocardiogram and fingerprint information, and perform judgment and response processing.

[0180] The processor can identify an individual based on fingerprint information, enabling payment and wear authorization scenarios.

[0181] Wearable device 1 may or may not include a display screen 13. For example, when wearable device 1 is a smartwatch, it may include a display screen 13. The display screen 13 can communicate directly or indirectly with processor 14. In this way, the display screen 13 can be used to display electrocardiogram (ECG) information, health status information, or other application display interfaces processed by processor 11.

[0182] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope 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 wearable device, comprising: The electrode comprises a conductive region and a non-conductive region on the same surface, and the conductive region is used for contacting with a user's finger to collect an electrical signal. The wearable device further comprises a processor, and the electrode is electrically connected to the processor through a first electrical connection. The electrode further comprises a side plate and a bottom plate, and the conductive layer is arranged opposite to the bottom plate and is electrically connected through the side plate and the bottom plate. The first electrical connection is arranged on a surface of the bottom plate away from the conductive layer and is electrically connected to the bottom plate. The conductive region surrounds the non-conductive region. The non-conductive region surrounds the conductive region.

2. The wearable device of claim 1, wherein, The non-conductive region and the conductive region are distributed in a grid shape.

3. The wearable device of claim 1, wherein, The non-conductive region and the conductive region are arranged at intervals.

4. The wearable device of claim 1, wherein, The capacitive fingerprint sensor is electrically connected to the processor through a second electrical connection.

5. The wearable device of claim 1, wherein, The surface of the insulating layer is provided with a groove, the conductive layer is arranged in the groove, and the area of the insulating layer without the groove is located in the non-conductive region.

6. The wearable device of any one of claims 1-5, wherein, The conductive layer is formed on the surface of the insulating layer by plating or coating.

7. The wearable device of any one of claims 1-5, wherein, The conductive layer is provided with an opening, the opening is located in the non-conductive region, and the insulating layer is arranged in the opening.

8. The wearable device of any one of claims 1-5, wherein, The thickness of the conductive layer is 5-10 μm.

9. The wearable device of any one of claims 1-5, wherein, The material of the conductive layer comprises at least one of metal and graphene.

10. The wearable device of any one of claims 1-5, wherein, The second electrical connection is arranged on a side of the capacitive fingerprint sensor away from the insulating layer.

11. The wearable device of any one of claims 1-5, wherein, The material of the insulating layer comprises at least one of epoxy resin, ink, glass cover plate, silicon nitride and silicon oxide.

12. The wearable device of claim 6, wherein, The electrode adopts an insulating material, and an outer surface of the electrode is covered with a conductive film.

13. The wearable device of any one of claims 1-5, wherein, The material of the conductive film comprises indium tin oxide.

14. The wearable device of any one of claims 1-5, wherein, The electrode comprises an electrocardiogram (ECG) electrode for acquiring an electrocardiogram signal of a user.

15. The wearable device of claim 14, wherein, The wearable device further comprises a display screen for displaying the electrocardiogram signal acquired by the ECG electrode.

16. The wearable device of any one of claims 1-5, wherein, The wearable device is a smart watch or a smart bracelet.

17. The wearable device of claim 16, wherein, The electrode comprises a conductive region and a non-conductive region on the same surface, and the conductive region is used for contacting with a user's finger to collect an electrical signal.

18. The wearable device of claim 17, wherein, The capacitive fingerprint sensor is arranged close to the non-conductive region and is used for collecting fingerprint information of a user when a user's finger contacts with the non-conductive region.

19. A wearable device, comprising: ​ ​ ​ An insulating layer is arranged on a side of the capacitive fingerprint sensor close to the non-conductive area; The wearable device further comprises a processor, and the electrode is electrically connected to the processor through a first electrical connector. The electrode comprises a conductive layer arranged on the conductive area, and the conductive layer is used to contact a user's finger to collect an electrical signal and is electrically connected to the first electrical connector. The electrode further comprises a pressing column electrically connected to the conductive layer, and the pressing column is opposite to the first electrical connector. The wearable device comprises an elastic conducting part arranged between the pressing column and the first electrical connector and electrically connected to the first electrical connector. The pressing column is used to press the elastic conducting part under an external force, so that the conductive layer is in conduction with the first electrical connector.

20. The wearable device of claim 19, wherein, The capacitive fingerprint sensor comprises a reinforcing plate arranged on a side of the capacitive fingerprint sensor away from the conductive layer.

21. The wearable device of claim 19, wherein, The conductive area is arranged around the non-conductive area.

22. The wearable device of claim 19, wherein, The non-conductive area is arranged around the conductive area.

23. The wearable device of claim 19, wherein, The non-conductive area and the conductive area are distributed in a grid shape.

24. The wearable device of claim 19, wherein, The non-conductive area and the conductive area are arranged at intervals.

25. The wearable device of any one of claims 19-24, wherein, The capacitive fingerprint sensor is electrically connected to the processor through a second electrical connector.

26. The wearable device of any one of claims 19-24, wherein, The surface of the insulating layer is provided with a groove, and the conductive layer is arranged in the groove. The area of the insulating layer without the groove is located in the non-conductive area.

27. The wearable device of any one of claims 19-24, wherein, The conductive layer is formed on the surface of the insulating layer by plating or coating.

28. The wearable device of any one of claims 19-24, wherein, The conductive layer is provided with an opening, and the opening is located in the non-conductive area. The insulating layer is arranged in the opening.

29. The wearable device of any one of claims 19-24, wherein, The thickness of the conductive layer is 5-10 μm.

30. The wearable device of any one of claims 19-24, wherein, The material of the conductive layer comprises at least one of metal and graphene.

31. The wearable device of claim 25, wherein, The second electrical connector is arranged on a side of the capacitive fingerprint sensor away from the insulating layer.

32. The wearable device of any one of claims 19-24, wherein, The material of the insulating layer comprises at least one of epoxy resin, ink, glass cover plate, silicon nitride, and silicon oxide.

33. The wearable device of any one of claims 19-24, wherein, The electrode is made of an insulating material, and an outer surface of the electrode is covered with a conductive film.

34. The wearable device of claim 33, wherein, The material of the conductive film comprises indium tin oxide.

35. The wearable device of any one of claims 19-24, wherein, The electrode comprises an electrocardiogram (ECG) electrode used to acquire an electrocardiogram signal of a user.

36. The wearable device of claim 35, wherein, The wearable device further comprises a display screen used to display the electrocardiogram signal acquired by the ECG electrode.

37. The wearable device of claim 36, wherein, The wearable device is a smart watch or a smart bracelet.

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