KR20210107436A - Electronic device including electrode in contact with body - Google Patents

Abstract

An electronic device according to various embodiments disclosed in the present document may comprise: a housing; a display exposed to one surface of the housing; a cover disposed to face the display; a printed circuit board disposed between the display and the cover; a bezel part disposed along an edge of the display; a first electrode disposed on the bezel part; a second electrode at least partially exposed through the cover; a third electrode disposed on the display at a position adjacent to the first electrode and formed of a light-transmitting material; a conductive connecting member disposed between the first electrode and the printed circuit board so that the first electrode is electrically connected to the printed circuit board; a sensor IC electrically connected to the first electrode, the second electrode, and the third electrode to process an electrical signal received through at least one among the first electrode, the second electrode, and the third electrode; and a processor operatively connected to the display and sensor IC and generating the biometric information based on an electrical signal processed by the sensor IC. In addition, various embodiments may also be possible. Therefore, the present invention is capable of allowing the biometric information to be precisely measured.

Description

Electronic device including an electrode in contact with the body {ELECTRONIC DEVICE INCLUDING ELECTRODE IN CONTACT WITH BODY}

Various embodiments disclosed in this document relate to an electronic device including an electrode that can be in contact with a user's body.

As interest in health increases, electronic devices are equipped with functions capable of measuring user's biometric information. Recently, various sensors capable of measuring a user's biometric information are also mounted on a wearable electronic device in the form of a wrist watch.

The user's biometric information may be measured by recognizing an electrical signal flowing through the body or applying the electrical signal. In order to recognize an electrical signal or apply an electrical signal, the electronic device may include an electrode that can be in contact with a user's body.

In order to measure a user's biometric information using an electrical signal, an electrode capable of receiving or transmitting an electrical signal is required. These electrodes may be disposed on or exposed to the outer surface of the electronic device so as to be in contact with the user's body.

Electrodes disposed on or exposed to the outer surface of the electronic device may damage the aesthetic appearance of the electronic device.

Various embodiments disclosed in this document may provide an electronic device capable of reducing damage to the aesthetics of an electronic device by an electrode for measuring biometric information and improving precision of measuring biometric information.

An electronic device according to various embodiments disclosed herein includes a housing, a display exposed through one surface of the housing, a cover disposed to face the display, a printed circuit board disposed between the display and the cover, and an edge of the display a bezel portion disposed along three electrodes, a conductive connecting member disposed between the first electrode and the printed circuit board so that the first electrode is electrically connected to the printed circuit board, and electrically connected to the first electrode, the second electrode and the third electrode a sensor IC that processes an electrical signal received through at least one of the first electrode, the second electrode, and the third electrode, and is operatively connected to the display and the sensor IC and is It may include a processor that generates biometric information.

The electronic device according to various embodiments disclosed herein includes a housing, a display exposed through one surface of the housing, a printed circuit board disposed under the display, and an edge of the display disposed along an edge of the display to surround the display. The bezel part rotates along the circumference, the first electrode disposed on the bezel part, the second electrode at least partially exposed through the cover disposed to face the display, and the first electrode is electrically connected to the printed circuit board A conductive connection member disposed between the first electrode and the printed circuit board so as to be electrically connected to the first electrode and the second electrode to process an electrical signal received through at least one of the first electrode and the second electrode and a processor that is operatively connected to the sensor IC and the display and the sensor IC and generates biometric information based on the electrical signal processed by the sensor IC.

According to various embodiments disclosed in this document, it is possible to reduce damage to the aesthetics of the electronic device, to arrange a plurality of electrodes on the outer surface of the electronic device, and to precisely measure biometric information.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.
1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure;
2 is a perspective view of a front side of a mobile electronic device according to various embodiments disclosed herein.
3 is a perspective view of a rear surface of the electronic device of FIG. 2 .
FIG. 4 is an exploded perspective view of the electronic device of FIG. 2 .
5 is a block diagram of an electronic device according to various embodiments disclosed herein.
6A to 6C are front views of an electronic device according to various embodiments disclosed herein.
7A to 7C are a side view of the electronic device illustrated in FIGS. 6A to 6C and a view partially cut along line AA.
FIG. 8 is a view partially cut along line BB of the display of the electronic device shown in FIGS. 6A to 6C .
9A to 9C are diagrams of a state of use of an electronic device according to various embodiments disclosed herein.
10 is a flowchart of measuring user's biometric information using an electronic device according to various embodiments of the present disclosure;
11 is a diagram illustrating a state in which an electronic device and a user's body are in contact with each other according to various embodiments of the present disclosure;
12 is a diagram comparing waveforms of electrical signals measured in a state in which a touch function of an electronic device is activated and in a state in which the touch function is deactivated, according to various embodiments of the present disclosure;

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments of the present disclosure. Referring to FIG. 1 , in a network environment 100 , the electronic device 101 communicates with the electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input device 150 , a sound output device 155 , a display device 160 , an audio module 170 , and a sensor module ( 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or antenna module 197 . ) may be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or computation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be loaded into the volatile memory 132 , process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together with the main processor 121 . , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 may be, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190 ). have.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101 . The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display device 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 388 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor) and may include one or more communication processors supporting direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : LAN (local area network) communication module, or a power line communication module) may be included. Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network 199 (eg, a cellular network, the Internet, or It may communicate with an external electronic device via a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 197 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( eg commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the electronic devices 102 and 104 may be the same or a different type of device as the electronic device 101 . According to an embodiment, all or part of the operations performed by the electronic device 101 may be executed by one or more of the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 is to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service by itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. The one or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology This can be used.

2 and 3 , the electronic device 200 according to an embodiment includes a first surface (or front surface) 210A, a second surface (or rear surface) 210B, and a first surface 210A and A housing 210 including a side surface 210C enclosing a space between the second surfaces 210B, is connected to at least a portion of the housing 210 and allows the electronic device 200 to be connected to a user's body part (eg: It may include fastening members 250 and 260 configured to be detachably attached to the wrist, ankle, etc.). In another embodiment (not shown), the housing may refer to a structure forming a part of the first surface 210A, the second surface 210B, and the side surface 210C of FIG. 2 . According to an embodiment, the first surface 210A may be formed by the front plate 201 (eg, a glass plate including various coating layers or a polymer plate) at least a portion of which is substantially transparent. The second surface 210B may be formed by a substantially opaque back plate 207 . The back plate 207 is formed by, for example, coated or tinted glass, ceramic, polymer, metal (eg, aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing. can be The side surface 210C is coupled to the front plate 201 and the rear plate 207 and may be formed by a side bezel structure (or “side member”) 206 including a metal and/or a polymer. In some embodiments, the back plate 207 and the side bezel structure 206 are integrally formed and may include the same material (eg, a metal material such as aluminum). The binding members 250 and 260 may be formed of various materials and shapes. A woven fabric, leather, rubber, urethane, metal, ceramic, or a combination of at least two of the above materials may be used to form an integral and a plurality of unit links to be able to flow with each other.

According to an embodiment, the electronic device 200 includes a display 220 (refer to FIG. 4 ), audio modules 205 and 208 , a sensor module 211 , key input devices 202 , 203 , 204 , and a connector hole ( 209) may include at least one or more of. In some embodiments, the electronic device 200 omits at least one of the components (eg, the key input device 202 , 203 , 204 , the connector hole 209 , or the sensor module 211 ) or other configuration. Additional elements may be included.

The display 220 may be exposed through a substantial portion of the front plate 201 , for example. The shape of the display 220 may be a shape corresponding to the shape of the front plate 201 , and may have various shapes such as a circle, an oval, or a polygon. The display 220 may be coupled to or disposed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a fingerprint sensor.

The audio modules 205 and 208 may include a microphone hole 205 and a speaker hole 208 . In the microphone hole 205, a microphone for acquiring an external sound may be disposed therein, and in some embodiments, a plurality of microphones may be disposed to detect the direction of the sound. The speaker hole 208 can be used as an external speaker and a receiver for calls.

The sensor module 211 may generate an electrical signal or data value corresponding to an internal operating state of the electronic device 200 or an external environmental state. The sensor module 211 may include, for example, a biometric sensor module 211 (eg, an HRM sensor) disposed on the second surface 210B of the housing 210 . The electronic device 200 may include a sensor module (not shown), for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, It may further include at least one of a humidity sensor and an illuminance sensor.

The key input device 202 , 203 , 204 includes a wheel key 202 disposed on a first surface 210A of the housing 210 and rotatable in at least one direction, and/or a side surface 210C of the housing 210 . ) may include side key buttons 202 and 203 disposed in the . The wheel key may have a shape corresponding to the shape of the front plate 201 . In other embodiments, the electronic device 200 may not include some or all of the above-mentioned key input devices 202, 203, 204 and the non-included key input devices 202, 203, 204 may display a display. It may be implemented in other forms such as soft keys on 220 . The connector hole 209 may accommodate a connector (eg, a USB connector) for transmitting/receiving power and/or data to and from an external electronic device and may accommodate a connector for transmitting/receiving an audio signal to/from an external electronic device Another connector hole (not shown) may be included. The electronic device 200 may further include, for example, a connector cover (not shown) that covers at least a portion of the connector hole 209 and blocks the inflow of foreign substances into the connector hole.

The binding members 250 and 260 may be detachably attached to at least a partial region of the housing 210 using the locking members 251 and 261 . The binding members 250 and 260 may include one or more of a fixing member 252 , a fixing member fastening hole 253 , a band guide member 254 , and a band fixing ring 255 .

The fixing member 252 may be configured to fix the housing 210 and the binding members 250 and 260 to a part of the user's body (eg, a wrist, an ankle, etc.). The fixing member fastening hole 253 may correspond to the fixing member 252 to fix the housing 210 and the coupling members 250 and 260 to a part of the user's body. The band guide member 254 is configured to limit the range of motion of the fixing member 252 when the fixing member 252 is fastened with the fixing member coupling hole 253, so that the fixing members 250 and 260 are attached to a part of the user's body. It can be made to adhere and bind. The band fixing ring 255 may limit the range of movement of the fixing members 250 and 260 in a state in which the fixing member 252 and the fixing member coupling hole 253 are fastened.

Referring to FIG. 4 , the electronic device 400 includes a side bezel structure 410 , a wheel key 420 , a front plate 201 , a display 220 , a first antenna 450 , and a second antenna 455 . , a support member 460 (eg, a bracket), a battery 470 , a printed circuit board 480 , a sealing member 490 , a rear plate 493 , and binding members 495 and 497 . At least one of the components of the electronic device 400 may be the same as or similar to at least one of the components of the electronic device 200 of FIG. 2 or 3 , and overlapping descriptions will be omitted below. The support member 460 may be disposed inside the electronic device 400 and connected to the side bezel structure 410 , or may be integrally formed with the side bezel structure 410 . The support member 460 may be formed of, for example, a metal material and/or a non-metal (eg, polymer) material. The support member 460 may have a display 220 coupled to one surface and a printed circuit board 480 coupled to the other surface. The printed circuit board 480 may be equipped with a processor, memory, and/or interfaces. The processor may include, for example, one or more of a central processing unit, an application processor, a graphic processing unit (GPU), an application processor signal processing unit, and a communication processor.

Memory may include, for example, volatile memory or non-volatile memory. The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and/or an audio interface. The interface may, for example, electrically or physically connect the electronic device 400 to an external electronic device, and may include a USB connector, an SD card/MMC connector, or an audio connector.

The battery 470 is a device for supplying power to at least one component of the electronic device 400 and may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell. have. At least a portion of the battery 470 may be disposed substantially coplanar with the printed circuit board 480 , for example. The battery 470 may be integrally disposed inside the electronic device 200 , or may be disposed detachably from the electronic device 200 .

The first antenna 450 may be disposed between the display 220 and the support member 460 . The first antenna 450 may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and/or a magnetic secure transmission (MST) antenna. The first antenna 450 may, for example, perform short-range communication with an external device or wirelessly transmit/receive power required for charging, and may transmit a magnetic-based signal including a short-range communication signal or payment data. . In another embodiment, an antenna structure may be formed by a part of the side bezel structure 410 and/or the support member 460 or a combination thereof.

The second antenna 455 may be disposed between the circuit board 480 and the back plate 493 . The second antenna 455 may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and/or a magnetic secure transmission (MST) antenna. The second antenna 455 may, for example, perform short-range communication with an external device or wirelessly transmit/receive power required for charging, and may transmit a magnetic-based signal including a short-range communication signal or payment data. . In another embodiment, an antenna structure may be formed by a part of the side bezel structure 410 and/or the rear plate 493 or a combination thereof.

The sealing member 490 may be positioned between the side bezel structure 410 and the rear plate 493 . The sealing member 490 may be configured to block moisture and foreign substances from flowing into a space surrounded by the side bezel structure 410 and the rear plate 493 from the outside.

5 is a block diagram of an electronic device according to various embodiments disclosed herein.

Referring to FIG. 5 , an electronic device (eg, the electronic device 101 of FIG. 1 or the electronic device 200 of FIG. 2 ) according to various embodiments disclosed herein includes a display 510 and a third electrode 553 . , a bezel part 520 , a first electrode 551 , a second electrode 552 , a fourth electrode 554 , a processor 530 , and a sensor IC 540 . The above-described configurations are merely descriptions of the configurations of the electronic device according to one embodiment among the various embodiments disclosed in this document. According to various embodiments, it is possible to configure the electronic device by excluding some of the above-described components or adding other components.

According to various embodiments, the display 510 may be a display device (eg, the display device 160 of FIG. 1 ) capable of displaying information visually. For example, the display 510 may be a liquid crystal display (LCD) or an organic light emitting diode (OLED) display 510 . The display 510 may receive a user's input. For example, the display 510 may include a layer that performs a corresponding function to enable a pressure-sensitive or capacitive touch input. In addition, various types of displays 510 may be included in the electronic device according to various embodiments disclosed herein. According to various embodiments, the display 510 may be exposed to the outside through a portion of the housing (eg, the housing 210 of FIG. 2 ). For example, the display 510 may be exposed to the outside through the front surface of the housing.

According to various embodiments, the third electrode 553 may be disposed on the display 510 . The third electrode 553 may be formed of a conductive material capable of receiving or transmitting an electrical signal in contact with the user's body. The third electrode 553 may be formed of a light-transmitting material so as not to interfere with the transmission of information visually displayed on the display 510 .

According to various embodiments, the bezel part 520 (eg, the wheel key 202 of FIG. 2 ) may be disposed on the edge of the display 510 . The bezel part 520 may protect the display 510 from an external impact. According to various embodiments, the bezel part 520 may rotate along the circumference of the display 510 . An input may be applied to the electronic device according to the degree of rotation of the bezel part 520 . For example, the user may input various commands by rotating the bezel part 520 .

According to various embodiments, the first electrode 551 may be disposed on the bezel part 520 . The first electrode 551 may be formed of a conductive material capable of receiving or transmitting an electrical signal in contact with the user's body.

According to various embodiments, the electronic device may include a second electrode 552 and a fourth electrode 554 . The second electrode 552 and the fourth electrode 554 may be formed of a conductive material capable of receiving or transmitting an electrical signal in contact with the user's body. The second electrode 552 and the fourth electrode 554 may be disposed in the electronic device to be exposed to the outside of the electronic device according to various embodiments disclosed herein. Referring to FIG. 3 , the second electrode 552 may be disposed such that at least a portion thereof is exposed on the cover of the electronic device (eg, the rear plate 207 of FIG. 3 ). The surface on which the second electrode 552 is disposed may be a rear surface (eg, 210B of FIG. 3 ) opposite to the front surface (eg, 210A of FIG. 2 ) on which the display 510 is disposed. As shown in FIG. 3 , two second electrodes 552 may be physically separated from each other on the cover. The shape and number of the second electrodes 552 shown in FIG. 3 are merely examples, and the shape and number of the second electrodes 552 may be variously changed. For example, three or more second electrodes 552 may be physically separated from each other on the cover. 2 and 3 , the fourth electrode 554 may be disposed on a side member of the housing 610 of the electronic device (eg, the housing 210 of FIG. 2 ). The side member of the housing 610 may refer to a portion surrounding the display 510 and the cover (eg, the rear plate 207 of FIG. 3 ). For example, the side member may refer to a portion indicated by 210C in FIG. 3 . According to various embodiments, the fourth electrode 554 may be disposed on a side member of the electronic device. 2 and 3 , two fourth electrodes 554 may be provided on the side of the electronic device housing 610 to face each other. The shape and number of the fourth electrodes 554 shown in FIGS. 2 and 3 are merely examples, and the shape and number of the fourth electrodes 554 may be variously changed.

According to various embodiments, the processor 530 may control various components of the electronic device, or process or operate data. The processor 530 may be operatively connected to the display 510 . The processor 530 may be, for example, the processor 120 illustrated in FIG. 1 . The processor 530 may be mounted on a printed circuit board (eg, the printed circuit board 480 of FIG. 4 ). According to various embodiments, a printed circuit board may be disposed below the display 510 .

According to various embodiments, the sensor IC 540 may be electrically connected to at least one of the first electrode 551 , the second electrode 552 , the third electrode 553 , and the fourth electrode 554 . The sensor IC 540 is an integrated circuit that processes electrical signals received or transmitted from at least one of the first electrode 551 , the second electrode 552 , the third electrode 553 , and the fourth electrode 554 . can The sensor IC 540 may process an electrical signal and transmit it to the processor 530 . The sensor IC 540 may be mounted on a printed circuit board (eg, the printed circuit board 480 of FIG. 4 ). According to various embodiments, the sensor IC 540 may be mounted on a flexible printed circuit board electrically connected to the printed circuit board.

In the drawings below, the same reference numerals are used for the same components as those of FIG. 5 .

6A to 6C are front views of an electronic device according to various embodiments disclosed herein, and FIGS. 7A to 7C are a side view of the electronic device shown in FIGS. 6A to 6C and a partial cut-away taken along line AA. It is a drawing. In the above drawings, the same reference numerals are used to describe the same components.

According to various embodiments, as shown in FIG. 6A , the bezel part 520 may be disposed along the edge of the display 510 to surround the display 510 . As shown in FIG. 6A , when the display 510 has a circular shape, the bezel part 520 may have a ring shape.

According to various embodiments, the bezel part 520 may be installed in the housing 610 to be rotatable along the circumference of the display 510 . For example, as shown in FIG. 7A , a fixing rail 730 may be installed on the housing 610 . The bezel portion 520 may include a concave portion 524 corresponding to the protrusion 731 of the fixing rail 730 . Since the protrusion 731 of the fixed rail 730 is inserted into the concave portion 524 formed in the bezel portion 520 , the bezel portion 520 may be installed on the fixed rail 730 . The bezel part 520 may rotate with respect to the fixed rail 730 installed in the housing 610 . The coupling relationship between the bezel part 520 and the fixing rail 730 may be variously changed. For example, a protrusion may be formed in the bezel part 520 and a concave part corresponding to the protrusion 731 of the bezel part 520 may be formed in the fixing rail 730 . According to various embodiments, the fixed rail may be integrally formed with the housing.

According to various embodiments, the first electrode 551 may be disposed on the bezel part 520 . The first electrode 551 may be installed on the bezel part 520 or may be formed on the bezel part 520 . For example, the bezel part 520 may be formed of a conductor to allow electricity to pass therethrough, and a partial region of the bezel part 520 may be the first electrode 551 .

According to various embodiments, the bezel part 520 may be divided into a plurality of regions. For example, the bezel part 520 may include a conductive region 521 and an insulating region 522 . The conductive region 521 may be formed of a conductor, and the insulating region 522 may be formed of an insulator or a region coated with an insulating material. The insulating region 522 may partition the conductive region 521 . The conductive region 521 partitioned by the insulating region 522 may be the first electrode 551 . According to various embodiments, as shown in FIG. 6A , the bezel part 520 may include two conductive regions 521 and two insulating regions 522 . 6B and 6C , the bezel part 520 may include several conductive regions 521 and several insulating regions 522 dividing the several conductive regions 521 .

According to various embodiments, the first electrode 551 corresponding to the conductive region 521 of the bezel part 520 may be electrically connected to the printed circuit board 710 by the connection member 630 . The connecting member 630 may be formed of a conductor to electrically connect the first electrode 551 and the printed circuit board 710 . The connection member 630 may be disposed between the first electrode 551 and the printed circuit board 710 .

According to various embodiments, as shown in FIGS. 6A and 6B , two connecting members 630 may be provided and disposed in a fixed state at a specific location. According to various embodiments, as shown in FIG. 6C , a plurality of connection members 630 may be provided and arranged along the outer periphery of the bezel part 520 . The number or arrangement of the connecting members 630 may be variously changed in addition.

According to various embodiments, as shown in FIG. 7A , the connection member 630 may be connected to a portion of the printed circuit board 710 and extend through the housing 610 . At least a portion of the connection member 630 may be exposed to the outside through a portion of the housing 610 . The connecting member 630 exposed as a portion of the housing 610 may be in contact with the first electrode 551 , such that the first electrode 551 may be electrically connected to the connecting member 630 .

According to various embodiments, as shown in FIG. 7B , the connection member 630 may be connected to the substrate of the display 510 (eg, the substrate 515 of FIG. 8 ) and extend to pass through the housing 610 . have. The substrate of the display 510 may be electrically connected to the printed circuit board 710 . The connection member 630 electrically connected to the substrate of the display 510 may be electrically connected to the printed circuit board 710 . The connecting member 630 exposed as a part of the housing 610 may contact the first electrode 551 , such that the first electrode 551 may be electrically connected to the connecting member 630 .

According to various embodiments, as shown in FIG. 7C , the connecting member 750 is in contact with a plurality of ball bearings 751 and the ball bearing 751 disposed between the first electrode 551 and the housing 610 . conductive line 752 to be used. The conductive line 752 may be connected to the printed circuit board 710 and extend through the housing 610 . The ball bearing 751 may be in the form of a ball formed of a conductor. The ball bearing 751 may roll according to the rotation of the bezel part 520 . The ball bearing 751 may roll between the first electrode 551 and the housing 610 according to the rotation of the bezel part 520 while the position is fixed by the bearing guide 770 . A conductive line 752 extending through the housing 610 may be exposed at a portion where the ball bearing 751 contacts the housing 610 . While the ball bearing 751 rolls between the first electrode 551 and the housing 610 , it may be in continuous contact with the conductive line 752 . In this case, even when the bezel part 520 rotates, the first electrode 551 disposed on the bezel part 520 may be continuously connected to the printed circuit board 710 .

In addition, the connecting member may have various structures capable of connecting the first electrode 551 and the printed circuit board 710 . Although it has been previously described that the connecting member is fixed to the housing 610 , the connecting member may be fixed to the first electrode 551 . For example, one end of the connecting member may be connected to the first electrode 551 and the opposite end may be in contact with the housing 610 . A conductive line connected to the printed circuit board 710 may extend through the housing 610 . The first electrode 551 and the printed circuit board 710 may be electrically connected to each other by contacting the conductive line exposed as a part of the housing 610 at the opposite end of the connecting member in contact with the housing 610 .

According to various embodiments, a third electrode 553 may be disposed on the display 510 as shown in FIGS. 6A to 6C .

FIG. 8 is a view partially cut along the line B-B of the display 510 of the electronic device shown in FIGS. 6A to 6C .

According to various embodiments, the display 510 may include a cover glass 511 , a touch layer 512 , an active layer 513 , and a substrate 515 . The cover glass 511 may be formed of a transparent material to protect the display 510 . The active layer 513 may include a plurality of layers that enable the display 510 to display visual information. For example, when the display 510 is an LCD, the active layer 513 may include a color filter, a liquid crystal layer, a backlight, and a thin film transistor (TFT). For example, when the display 510 is an OLED, the active layer 513 may include a light emitting diode (LED) layer and a TFT. According to various embodiments, the display 510 may include a touch layer 512 for recognizing a touch input to recognize a touch input through the display 510 . The touch layer 512 may be, for example, a layer that recognizes a capacitive or pressure-sensitive touch. According to various embodiments, the substrate 515 may be electrically connected to components included in the display 510 . The board 515 may be electrically connected to a printed circuit board (eg, the printed circuit board 710 of FIG. 7A ) of an electronic device by a connecting member such as a flexible printed circuit board.

According to various embodiments, the third electrode 553 may be disposed on the display 510 . The third electrode 553 may be formed of a light-transmitting material so as not to block information displayed on the display 510 . The third electrode 553 may be disposed on the display 510 at a position adjacent to the first electrode (eg, the first electrode 551 of FIG. 6A ). When the bezel part (eg, the bezel part 520 of FIG. 6A ) is disposed along the edge of the display 510 , the third electrode 553 may be disposed on the edge of the display 510 .

According to various embodiments, as shown in FIG. 8 , the third electrode 553 may extend along the outer periphery of the display 510 to be electrically connected to the substrate 515 . 8 shows that the third electrode 553 protrudes from the outer periphery of the display 510 due to the thickness of the third electrode 553 itself, but for convenience of explanation, the third electrode 553 is thickly formed. only a step

According to various embodiments, the third electrode 553 may be coated on the cover glass 511 of the display 510 . The third electrode 553 may be coated on the outer periphery of the cover glass 511 . Although it is illustrated in FIG. 8 that a step is formed between the third electrode 553 and the cover glass 511 , this is only a step formed by thickly illustrating the third electrode 553 for convenience of explanation. The thickness of the third electrode 553 may be thin so that a step difference is hardly felt between the third electrode 553 and the cover glass 511 .

9A to 9C are diagrams of a state of use of an electronic device according to various embodiments disclosed herein.

According to various embodiments, some of the first electrodes 551-1 among the first electrodes 551 disposed on the bezel part 520 are connected to a printed circuit board (eg, the printed circuit board of FIG. 7A ) by the connection member 630 . 710 ), and some of the first electrodes 551 - 2 may not be electrically connected to the printed circuit board. When the connecting member 630 is fixed, only some of the first electrodes 551-1 among the first electrodes 551 are connected to the printed circuit board 710 by the connecting member 630 according to the rotation of the bezel part 520 . can be electrically connected.

According to various embodiments, the connection member 630 may be fixed to the housing 610 . In this case, the first electrode 551-1 electrically connected to the printed circuit board 710 may always be at the same position with respect to the housing 610 . For example, when the connection member 630 is fixed in the substantially 11 o'clock and 7 o'clock directions with respect to the housing 610 as shown in FIG. 9A , even if the bezel part 520 rotates, The first electrode 551-1 substantially disposed in the 11 o'clock direction and the first electrode 551-1 disposed substantially in the 7 o'clock direction may be electrically connected to the printed circuit board. The processor (eg, the processor 530 of FIG. 5 ) may display a user interface 910 indicating a position of the connection member 630 on the display 510 . For example, the processor may display an arrow 910 indicating the position of the connection member 630 on the display 510 as shown in FIG. 9A . The user can easily check the position of the first electrode 551 electrically connected to the printed circuit board by checking the user interface 910 displayed on the display 510 .

According to various embodiments, the connection member 630 may be fixed to the first electrode 551 . In this case, unlike the previous embodiment, the position of the first electrode 551 connected to the printed circuit board may be changed according to the rotation of the bezel part 520 . According to various embodiments, the processor may detect the degree of rotation of the bezel part 520 . Before the rotation of the bezel part 520 starts, the position of the connection member 630 is determined, and the processor can detect the degree of rotation of the bezel part 520 . The location of 630 can be known. Since the connecting member 630 is a component that electrically connects the first electrode 551 and the printed circuit board, the position of the connecting member 630 means the position of the first electrode 551 electrically connected to the printed circuit board. can After the rotation of the bezel part 520 is completed, the processor may detect the position of the connecting member 630 and display a UI indicating the position of the connecting member 630 on the display 510 . For example, the processor may display an arrow-shaped UI 910 on the display 510 as shown in FIG. 9A . Even if the bezel part 520 is rotated to change the position of the first electrode 551 connected to the printed circuit board, the user can use the first electrode 551 connected to the printed circuit board through the user interface 910 displayed on the display 510 . location can be easily identified.

According to various embodiments, as shown in FIG. 6C , when the connecting member 630 is configured such that all the first electrodes 551 are connected to the printed circuit board despite the rotation of the bezel part 520, the processor The user interface indicating the location of the above-described connection member 630 may not be displayed on the display 510 .

According to various embodiments, as shown in FIGS. 9B and 9C , the processor 530 uses the user interface ( 920) can be expressed. The processor may display a partial region of the display 510 including the third electrode 553 as the user interface 920 that visually distinguishes it from other regions of the display 510 . For example, the processor may display the region of the display 510 including the corresponding third electrode 553 in a color or shape that can be distinguished from other regions. The user can easily recognize the position of the first electrode 551 electrically connected to the printed circuit board 710 and the region where the third electrode 553 is disposed through the user interface 920 displayed on the display 510. have.

According to various embodiments, the processor may deactivate the touch function of the display 510 when measurement through the third electrode 553 is performed. The processor may deactivate the teach function in all areas of the display 510 , and may deactivate the touch function only in some areas of the display 510 . For example, the processor may inactivate the touch function only for a region including the third electrode 553 adjacent to the first electrode 551-1 in contact with the connection member 630 . According to various embodiments, the processor may display on the display 510 that the current touch function is in an inactive state. For example, the processor may display a phrase 930 such as “touch input is limited during measurement” as shown in FIG. 9C . According to various embodiments, the processor may display a virtual button 940 capable of receiving a command to stop measurement on the display 510 . The processor may activate a touch function for an area corresponding to the virtual button 940 .

10 is a flowchart of measuring the user's biometric information using an electronic device according to various embodiments disclosed herein, and FIG. 11 is a diagram illustrating a contact between the electronic device and the user's body according to various embodiments disclosed in this document. It is a diagram illustrating a state, and FIG. 12 is a diagram comparing waveforms of electrical signals measured in a state in which a touch function of an electronic device is activated and a state in which the touch function is deactivated, according to various embodiments of the present disclosure. Hereinafter, the reference numerals of FIG. 5 will be used for the components shown in FIG. 5 .

According to various embodiments, the user's biometric information may be measured using at least one of the first electrode 551 , the second electrode 552 , the third electrode 553 , and the fourth electrode 554 . Here, the user's biometric information may include the user's electrocardiogram-related information and body composition-related information.

The user's ECG-related information may mean information related to an electrical activity of the heart. Electrocardiogram-related information is measured by measuring an electrical signal when the heart muscle contracts using at least one of the first electrode 551 , the second electrode 552 , the third electrode 553 , and the fourth electrode 554 . can do. When the heart muscle contracts or relaxes, an action potential spreads from the heart throughout the body. If electrodes are attached to various parts of the body, the potential difference generated by the electric current caused by the contraction or relaxation of the heart muscle can be obtained. For example, when the electronic device according to various embodiments disclosed herein is an electronic device of a type worn on the wrist (eg, the electronic device 200 of FIG. 2 ), the rear surface of the electronic device (eg, 210B of FIG. 3 ) ), the second electrode 552 may be in contact with one wrist of a user wearing the electronic device. In this state, when the user touches at least one of the first electrode 551 , the third electrode 553 , and the fourth electrode 554 with the fingers of the hand not wearing the electronic device, the potential of both hands according to the heartbeat car can be detected. An electrical signal transmitted from electrodes in contact with both hands of the user may be transmitted to the sensor IC 540 . The sensor IC 540 may process the transmitted electrical signal.

The user's body composition related information may mean information related to a component ratio of the user's body. The human body can be divided into fat and non-fat parts. The mass of the non-fat portion is called extrafat mass (fat free mass; FFM). The non-fat part can be divided into water, muscle, and other parts, and it can be seen that the composition ratio of the non-fat part is maintained constant. For example, the moisture content can be regarded as about 73% of the extra-fat mass. If the fat mass is obtained, the extra-fat mass can be obtained using the body weight, and the composition ratio of the extra-fat mass is fixed. Fat mass can be calculated through impedance. Accordingly, by measuring the impedance, information related to the user's body composition can be measured. Impedance can be obtained by measuring a voltage according to an alternating current applied to the user's body.

In order to measure the impedance, at least four electrodes may be in contact with the user's body. Two of the four electrodes may be electrodes for applying a current, and the other two electrodes may be electrodes for measuring a voltage. For example, when the electronic device according to various embodiments disclosed herein is an electronic device of a type worn on a wrist, at least two or more second electrodes 552 disposed on the rear surface of the electronic device may be used by a user wearing the electronic device. It may come into contact with one wrist of the In this state, the user may contact the two fingers of the hand on which the electronic device is not worn to the first electrodes 551 disposed at different positions, respectively. As another example, the user may bring two fingers into contact with the third electrodes 553 disposed at different positions, respectively. 11 , the user's two fingers may contact the first electrode 551 and the third electrode 553 together, respectively. In this case, the first electrode 551 and the third electrode 553 may be electrically connected and used as one electrode. In some cases, the first electrode 551 and the third electrode 553 are electrically separated so that the finger that is in contact with the first electrode 551 and the third electrode 553 comes into contact with the two electrically separated electrodes. you might as well make it The user's finger may contact the third electrode 553 in an area adjacent to the first electrode 551 with which the finger is in contact. A portion where the third electrode 553 adjacent to the first electrode 551 in contact with the user's finger is disposed may be displayed as the user interface 1110 . In some cases, the user may bring two fingers into contact with the fourth electrodes 554 disposed on both sides of the electronic device as shown in FIGS. 2 and 3 , respectively.

AC current is applied to some of the electrodes in contact with the user's body, and a voltage according to the application of the AC current may be measured in some. The impedance of the user's body may be measured using the applied alternating current and the voltage measured accordingly. The sensor IC 540 may generate an alternating current and transmit it to the electrodes, or measure a voltage between the electrodes. The sensor IC 540 may obtain an impedance and transfer the impedance to the processor 530 .

Electrocardiogram-related information and body composition-related information are only a few examples of various types of biometric information, and the electronic device according to various embodiments disclosed herein may measure various types of biometric information. In addition, the method of measuring the electrocardiogram-related information and the body composition-related information described above is merely described by taking one of various measurement methods as an example. In addition to the method described above, the user's biometric information is measured using an electrical signal measured using at least one of the first electrode 551 , the second electrode 552 , the third electrode 553 , and the fourth electrode 554 . can do.

According to various embodiments, measurement of biometric information may be started according to a user's input or a specific condition. For example, the user may touch the display 510 to start measuring biometric information. For example, biometric information measurement may be started at a certain time period, or biometric information measurement may be started based on other information processed by the electronic device (eg, heart rate information).

According to various embodiments, when the electronic device is a wrist-worn electronic device, the second electrode 552 disposed on the rear surface of the electronic device may be in contact with the wrist of the hand on which the electronic device is worn. The user may contact the opposite finger on which the electronic device is worn to at least one of the first electrode 551 , the third electrode 553 , and the fourth electrode 554 . According to various embodiments, the processor 530 displays a visual user interface (eg, 910 in FIG. 9A and 920 in FIG. 9B ) on the display 510 as shown in FIGS. 9A and 9C , so that the user's body A corresponding user interface may be induced to come into contact with the displayed portion. For example, when the user's finger comes into contact with at least one of the first electrode 551 , the third electrode 553 , and the fourth electrode 554 , the electronic device is moved to the user's wrist by the pressure applied to the electronic device by the user. can be maintained in a fixed state. While the measurement is being performed, the user may stably fix the electronic device due to the user's measurement posture. In particular, when the user's finger comes into contact with at least one of the first electrode 551 and the third electrode 553 disposed on the front side of the electronic device, the second electrode disposed on the rear side of the electronic device by the pressure applied by the user 552 may be in stable contact with the user's wrist.

According to various embodiments, the processor 530 may determine whether the user's body is in contact with the third electrode 553 ( S1010 ). The processor 530 may determine whether the user's body is in contact with the electrode by, for example, checking the contact resistance of the electrode. The user's body may contact only the first electrode 551 disposed on the bezel part 520 , or may contact the first electrode 551 and the third electrode 553 at the same time. When the user's body contacts only the first electrode 551 , the processor 530 may activate only the first electrode 551 and deactivate the third electrode 553 ( 1020 ). Activation means that the processor 530 controls the sensor IC 540 to detect an electrical signal received or transmitted to the corresponding electrode, and deactivation means that the processor 530 controls the sensor IC 540 to the corresponding electrode. It may mean not to detect a received or transmitted electrical signal. The processor 530 may activate both the first electrode 551 and the third electrode 553 when the user's body contacts the first electrode 551 and the third electrode 553 at the same time ( 1040 ). .

When the measurement is performed by activating only the first electrode 551 ( 1020 ), the sensor IC 540 may check the quality of the electrical signal received through the first electrode 551 ( 1030 ). The sensor IC 540 may check the quality of the electrical signal by analyzing the component or shape of the waveform of the electrical signal. For example, the sensor IC 540 may check the quality of the electrical signal by checking total harmonic distortion (THD). The sensor IC 540 may determine that the quality of the electrical signal is less than or equal to the reference quality when the quality of the received electrical signal is less than or equal to a set standard. When the quality of the electrical signal is less than or equal to the reference quality, the processor 530 may activate the third electrode 553 to attempt re-measurement using both the first electrode 551 and the third electrode 553 . The processor 530 may display a portion to be touched by the user's body by displaying a visual user interface on the display 510 . According to various embodiments, when the quality of the electrical signal is less than or equal to the reference quality, the processor 530 may display on the display 510 that re-measurement or re-contact between the body and the electrode is required. According to various embodiments, the quality of the electrical signal may be checked by the processor 530 . If it is determined that the quality of the electrical signal exceeds the reference quality, the sensor IC 540 may process the electrical signal. Electrical signal processing by the sensor IC 540 may include impedance calculation using the received electrical signal including rectification, amplification, and conversion of the electrical signal, removing noise included in the electrical signal, and filtering the electrical signal. . In addition, the sensor IC 540 may process electrical signals in various ways. The processor 530 receiving the electrical signal processed by the sensor IC 540 may generate biometric information based on the electrical signal ( S1050 ). For example, the processor 530 may generate electrocardiogram-related information or body composition-related information based on the electrical signal processed by the sensor IC 540 , and display the generated information on the display 510 . According to various embodiments, the biometric information may be generated by the sensor IC 540 . The sensor IC 540 may generate biometric information by processing the received electrical signal.

When the measurement is performed 1040 by activating both the first electrode 551 and the third electrode 553 , the sensor IC 540 receives an electrical signal received from the first electrode 551 and the third electrode 553 . quality can be checked. Similar to that described above, the sensor IC 540 may determine whether there is an abnormality in the electrical signal quality based on the THD value. When the quality of the electrical signal is less than or equal to the reference quality, the processor 530 may display on the display 510 that re-measurement or re-contact between the body and the electrode is required. When it is determined that the quality of the electrical signal exceeds the reference quality, the sensor IC 540 may process the electrical signal. Electrical signal processing by the sensor IC 540 may include rectification, amplification, and conversion of the electrical signal using the received electrical signal to calculate impedance, remove noise included in the electrical signal, and filter the electrical signal. . In addition, the sensor IC 540 may process electrical signals in various ways. The processor 530 receiving the electrical signal processed by the sensor IC 540 may generate biometric information based on the electrical signal ( S1050 ). For example, the processor 530 may generate electrocardiogram-related information or body composition-related information based on the electrical signal processed by the sensor IC 540 , and display the generated information on the display 510 . According to various embodiments, the biometric information may be generated by the sensor IC 540 . The sensor IC 540 may generate biometric information by processing the received electrical signal.

According to various embodiments, when activating the third electrode 553 , the processor 530 may deactivate the touch function of the display 510 . The touch function of the display 510 may affect the quality of the electrical signal measured by the third electrode 553 . In particular, when the display 510 is a type display 510 capable of accommodating a capacitive touch input, a minute current for a touch function may act as noise on an electrical signal measured by the third electrode 553 . As shown in FIG. 12 , the electrical signal measured through the third electrode 553 in a state in which the touch function of the display 510 is deactivated and the third electrode 553 in the state in which the touch function is activated. Comparing the waveforms of the electrical signals, it can be seen that the electrical signal measured in a state in which the touch function is deactivated contains less noise 1210 . In general, since the quality of the electrical signal including less noise 1210 is excellent, the quality of the electrical signal measured in a state in which the touch function is deactivated can be regarded as excellent. According to various embodiments, the processor 530 may display a phrase such as “touch input is limited” on the display 510 while the measurement of the electrical signal through the third electrode 553 is performed (eg, 930 in FIG. 9C ). ) to inform the user that the touch input is in an inactive state. According to various embodiments, the processor 530 may deactivate the touch function in a portion of the display 510 during measurement through the third electrode 553 . The processor 530 may output a virtual button (eg, 940 of FIG. 9C ) to the area where the touch function is activated. For example, if the virtual button is touched, the measurement may be stopped.

The electronic device according to various embodiments disclosed herein may further include a multiplexer (MUX) (not shown). The multiplexer may be included in the sensor IC 540 or may be configured as a separate electronic component. The multiplexer uses only high-quality electrical signals based on the quality of electrical signals received by the first electrode 551 , the second electrode 552 , the third electrode 553 , and the fourth electrode 554 to the sensor IC 540 . can be forwarded to For example, the multiplexer may determine the quality of the electrical signal based on the THD value described above. The multiplexer may transmit only an electrical signal having a quality equal to or greater than the reference quality to the sensor IC 540 . When a plurality of electrical signals are received from a plurality of electrodes included in the electronic device, since the biometric information may be measured using only the electric signal having the highest quality, more precise biometric information measurement may be possible.

An electronic device according to various embodiments disclosed herein includes a housing, a display exposed through one surface of the housing, a cover disposed to face the display, a printed circuit board disposed between the display and the cover, and an edge of the display a bezel portion disposed along three electrodes, a conductive connecting member disposed between the first electrode and the printed circuit board so that the first electrode is electrically connected to the printed circuit board, and electrically connected to the first electrode, the second electrode and the third electrode a sensor IC that processes an electrical signal received through at least one of the first electrode, the second electrode, and the third electrode, and is operatively connected to the display and the sensor IC and is It may include a processor that generates biometric information.

Also, the third electrode may be coated on an outer periphery of a cover glass included in the display to be disposed adjacent to the first electrode.

In addition, the bezel part may be formed of a conductor, and the first electrode may be formed in at least one region partitioned on the bezel part.

In addition, the connection member may electrically connect the first electrode and the printed circuit board at a fixed position.

Also, the processor may display a UI indicating a position of the connection member on the display.

In addition, the processor may display a UI for visually classifying the corresponding area so that the user's body comes into contact with the area of the display adjacent to the position of the connection member.

In addition, the bezel part may be arranged to rotate along an outer periphery of the display.

In addition, a plurality of the connection members may be provided and arranged between the bezel part and the printed circuit board.

In addition, the connecting member may be in the form of a ball bearing.

Also, the processor may deactivate the touch function of the display while the third electrode is activated.

Also, the processor may activate the third electrode based on whether the third electrode and the user's body are in contact.

In addition, the housing may further include a side member surrounding the display and the cover, and may further include a fourth electrode disposed on the side member and electrically connected to the sensor IC. can

In addition, by selecting at least one of the plurality of electrical signals based on the quality of the electrical signal measured in at least one of the first electrode, the second electrode, the third electrode, and the fourth electrode, the selected electrical signal to the sensor IC It may further include a multiplexer for transmitting.

The electronic device according to various embodiments disclosed herein includes a housing, a display exposed through one surface of the housing, a printed circuit board disposed under the display, and an edge of the display disposed along an edge of the display to surround the display. The bezel part rotates along the circumference, the first electrode disposed on the bezel part, the second electrode at least partially exposed through the cover disposed to face the display, and the first electrode is electrically connected to the printed circuit board A conductive connection member disposed between the first electrode and the printed circuit board so as to be electrically connected to the first electrode and the second electrode to process an electrical signal received through at least one of the first electrode and the second electrode and a processor that is operatively connected to the sensor IC and the display and the sensor IC and generates biometric information based on the electrical signal processed by the sensor IC.

The display device may further include a third electrode disposed on the display at a position adjacent to the first electrode, electrically connected to the sensor IC, and formed of a light-transmitting material.

Also, the third electrode may be coated on an outer periphery of a cover glass included in the display to be disposed adjacent to the first electrode.

In addition, a plurality of the connection members may be provided and arranged between the bezel part and the printed circuit board.

In addition, the connecting member may be in the form of a ball bearing.

Also, the processor may deactivate the touch function of the display while the third electrode is activated.

In addition, it may further include a fourth electrode disposed in the housing and electrically connected to the sensor IC.

And the embodiments disclosed in the present document disclosed in the present specification and drawings are merely provided for specific examples to easily explain the technical content according to the embodiments disclosed in this document and help the understanding of the embodiments disclosed in this document, It is not intended to limit the scope of the embodiments disclosed in the document. Accordingly, the scope of various embodiments disclosed in this document includes all changes or modifications derived from the technical ideas of various embodiments disclosed in this document, in addition to the embodiments disclosed herein, in the scope of various embodiments disclosed in this document. should be interpreted as being

510: display 520: bezel part
530: processor 540: sensor IC
551: first electrode 552: second electrode
553: third electrode 554: fourth electrode

Claims (20)

In an electronic device,
housing;
a display exposed to one surface of the housing;
a cover disposed to face the display;
a printed circuit board disposed between the display and the cover;
a bezel part disposed along an edge of the display;
a first electrode disposed on the bezel part;
a second electrode at least partially exposed through the cover;
a third electrode disposed on the display at a position adjacent to the first electrode and formed of a light-transmitting material;
a conductive connecting member disposed between the first electrode and the printed circuit board so that the first electrode is electrically connected to the printed circuit board;
a sensor IC electrically connected to the first electrode, the second electrode, and the third electrode to process an electrical signal received through at least one of the first electrode, the second electrode, and the third electrode; and
and a processor operatively connected to the display and the sensor IC and configured to generate biometric information based on an electrical signal processed by the sensor IC. According to claim 1,
The third electrode is
An electronic device coated on an outer periphery of a cover glass included in the display to be disposed adjacent to the first electrode. According to claim 1,
The bezel part is formed of a conductor,
The first electrode is formed in at least one region partitioned on the bezel part. According to claim 1,
The connecting member is
An electronic device electrically connecting the first electrode and a printed circuit board at a fixed position. 5. The method of claim 4,
The processor is
An electronic device for displaying a UI indicating a position of the connection member on the display. 5. The method of claim 4,
The processor is
An electronic device for displaying a UI for visually classifying a region of the display adjacent to the position of the connection member so that the user's body comes into contact with the region. According to claim 1,
The bezel part,
An electronic device arranged to rotate along an outer periphery of the display. 8. The method of claim 7,
The connecting member is
An electronic device provided in plurality and arranged between the bezel part and a printed circuit board. 9. The method of claim 8,
The connecting member is
Electronic devices in the form of ball bearings. According to claim 1,
The processor is
An electronic device for deactivating a touch function of the display while the third electrode is activated. According to claim 1,
The processor is
An electronic device that activates the third electrode based on whether the third electrode and the user's body are in contact. According to claim 1,
the housing is
Further comprising a side member surrounding the display and the cover,
and a fourth electrode disposed on the side member and electrically connected to the sensor IC. According to claim 1,
Selecting at least one of the plurality of electrical signals based on the quality of the electrical signals measured by at least one of the first electrode, the second electrode, the third electrode, and the fourth electrode and transmitting the selected electrical signal to the sensor IC The electronic device further comprising a multiplexer. In an electronic device,
housing;
a display exposed through one surface of the housing;
a printed circuit board disposed below the display;
a bezel part disposed along an edge of the display to surround the display and rotating along the periphery of the display;
a first electrode disposed on the bezel part;
a second electrode at least partially exposed through a cover disposed to face the display;
a conductive connecting member disposed between the first electrode and the printed circuit board so that the first electrode is electrically connected to the printed circuit board;
a sensor IC electrically connected to the first electrode and the second electrode to process an electrical signal received through at least one of the first electrode and the second electrode; and
and a processor operatively connected to the display and the sensor IC and configured to generate biometric information based on an electrical signal processed by the sensor IC. 15. The method of claim 14,
and a third electrode disposed on the display at a position adjacent to the first electrode, electrically connected to the sensor IC, and formed of a light-transmitting material. 16. The method of claim 15,
The third electrode is
An electronic device coated on an outer periphery of a cover glass included in the display to be disposed adjacent to the first electrode. 15. The method of claim 14,
The connecting member is
An electronic device provided in plurality and arranged between the bezel part and a printed circuit board. 18. The method of claim 17,
The connecting member is
Electronic devices in the form of ball bearings. 16. The method of claim 15,
The processor is
An electronic device for deactivating a touch function of the display while the third electrode is activated. 15. The method of claim 14,
and a fourth electrode disposed in the housing and electrically connected to the sensor IC.

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