Electronic device including structures to facilitate operation of multiple sensors having different optical characteristics

Abstract

An electronic device according to one embodiment includes a housing, a printed circuit board, a window including a first area parallel to the printed circuit board and a second area connecting a periphery of the first area and the housing, a photoplethysmogram (PPG) sensor including at least one first emission portion and at least one first reception portion configured to receive light, and disposed on the printed circuit board, a laser sensor including at least one second emission portion and at least one second reception portion configured to receive light emitted from the at least one second emission portion and reflected from a part of a user's body, and a refractive index layer disposed on the laser sensor, wherein the laser sensor is disposed on the printed circuit board in a manner surrounded by the PPG sensor, and overlaps the first area when the window is viewed from the outside of the electronic device.

Description

Technical Field

[0001] One or more embodiments relate to an electronic device including a structure for facilitating the operation of a plurality of sensors with different optical properties. Background Technology

[0002] Electronic devices can be configured to acquire a user's biometric information and notify the user of the acquired biometric information. The electronic device used to acquire biometric information can be a wearable device worn by the user and in contact with a part of the user's body. For example, a wearable device can be worn on the user's fingers, ankles, wrists, ears, or face.

[0003] To facilitate the acquisition of a user's biometric information, electronic devices may include optical sensors. For example, an electronic device may include a photovolume change mapping (PPG) sensor that emits light toward a part of the human body and receives the light reflected from the body. As the capabilities of electronic devices have proliferated, in addition to PPG sensors, electronic devices may also include various other types of optical sensors. Summary of the Invention

[0004] Technical issues

[0005] When a user wears an electronic device, the device may come into contact with, for example, the user's wrist. With the proliferation of capabilities in electronic devices, they can include a variety of different types of optical sensors. Because multiple optical sensors have different optical properties, their performance can be degraded due to light crosstalk when they are positioned close to each other. Therefore, multiple optical sensors may need to be placed in different areas of the electronic device to optimize performance. However, because electronic devices are miniaturized to the point where they can be worn on a user's wrist, the space available for placing various sensors within the device may be limited. Therefore, electronic devices may require new methods for incorporating multiple sensors with different optical properties within a limited space.

[0006] The one or more embodiments disclosed herein generally relate to an electronic device including a structure for facilitating the operation of a plurality of sensors having different optical properties. The technical problems to be solved in this document are not limited to those described above, and other technical problems not mentioned herein will be clearly understood by those skilled in the art to which this disclosure pertains, based on the following description.

[0007] Technical solutions

[0008] According to an embodiment, an electronic device may include: a housing; a printed circuit board disposed within the housing; a window including a first region and a second region, the first region being parallel to the printed circuit board, the second region connecting the periphery of the first region and the housing, and facing a portion of the user's body when the electronic device is worn by the user; a photovolume change mapping (PPG) sensor disposed on the printed circuit board and including at least one first emitting portion and at least one first receiving portion, the at least one first emitting portion being configured to emit light toward the window at a first beam angle, and the at least one first receiving portion being configured to receive light emitted from the at least one first emitting portion and reflected from a portion of the user's body; a laser sensor including at least one second emitting portion and at least one second receiving portion, the at least one second emitting portion being configured to emit light toward the window at a second beam angle smaller than the first beam angle, and the at least one second receiving portion being configured to receive light emitted from the at least one second emitting portion and reflected from a portion of the user's body; and a refractive index layer disposed on the laser sensor; wherein the laser sensor may be disposed on the printed circuit board in a manner surrounding the PPG sensor, and may overlap with the first region when the window is viewed from outside the electronic device. Furthermore, various embodiments are also possible.

[0009] According to an embodiment, an electronic device may include: a housing, the housing including a first surface, a second surface opposite to the first surface, and an internal space formed between the first and second surfaces; a printed circuit board disposed in the internal space; a window forming at least a portion of the second surface of the housing, and including a first region and a second region, the first region being parallel to the printed circuit board and configured to contact a portion of a user's body when the electronic device is worn by a user, the second region having curvature and connecting the periphery of the first region and the housing; a photoplethysmography (PPG) sensor, the PPG sensor being disposed on the printed circuit board and including at least one first emitting portion and at least one first receiving portion, the at least one first emitting portion being configured to emit light toward the window at a first beam angle, and the at least one first receiving portion being configured to receive light from the at least one first emitting portion. The device includes: light emitted from and reflected from a part of the user's body; a laser sensor comprising at least one second emitting part and at least one second receiving part, the at least one second emitting part being configured to emit light toward the window at a second beam angle less than a first beam angle, and at least one second receiving part being configured to receive light emitted from the at least one second emitting part and reflected from a part of the user's body; a refractive index layer disposed on the laser sensor; and a blocking member disposed on the laser sensor to be positioned between an area of ​​the window overlapping the at least one second emitting part and another area of ​​the window overlapping the at least one second receiving part when the window is viewed from outside the electronic device, wherein the laser sensor may be disposed on a printed circuit board in such a manner as to be surrounded by a PPG sensor and may overlap with the first area when the window is viewed from outside the electronic device.

[0010] Beneficial effects

[0011] According to an embodiment, since a laser sensor with optical characteristics different from those of the PPG sensor is disposed within the housing in a manner surrounding the PPG sensor, the electronic device can arrange the PPG sensor and the laser sensor within a limited space while ensuring the performance of both sensors. Because the performance of the PPG sensor and the laser sensor is guaranteed, the electronic device can obtain various biometric information from the user and notify the user of the obtained biometric information.

[0012] The effects that can be obtained from this disclosure are not limited to those described above, and any other effects not mentioned herein will be clearly understood by one of ordinary skill in the art to which this disclosure pertains, based on the following description. Attached Figure Description

[0013] Figure 1 This is a block diagram of an electronic device in a network environment according to an embodiment.

[0014] Figure 2a and Figure 2b This is a perspective view of an electronic device according to an embodiment.

[0015] Figure 3 This is an exploded perspective view of an electronic device according to an embodiment.

[0016] Figure 4 This is a perspective view of the second surface of an electronic device according to an embodiment.

[0017] Figure 5a This is a top view illustrating an example of the arrangement relationship between the PPG sensor and the laser sensor in an electronic device according to an embodiment.

[0018] Figure 5b This is a top view illustrating another example of the arrangement relationship between the PPG sensor and the laser sensor in an electronic device according to an embodiment.

[0019] Figure 5c This is a top view illustrating yet another example of the arrangement relationship between the PPG sensor and the laser sensor in an electronic device according to an embodiment.

[0020] Figure 6 This illustrates an electronic device along an embodiment. Figure 4 A diagram showing an example of A-A' being cut.

[0021] Figure 7a This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0022] Figure 7b This is a plan view of the second surface of the electronic device according to an embodiment.

[0023] Figure 8 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0024] Figure 9 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0025] Figure 10 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0026] Figure 11 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment. Detailed Implementation

[0027] Figure 1 This is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments.

[0028] refer to Figure 1In network environment 100, electronic device 101 can communicate with electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or with at least one of electronic device 104 or server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, electronic device 101 can communicate with electronic device 104 via server 108. According to an embodiment, electronic device 101 may include a processor 120, memory 130, input module 150, sound output module 155, display module 160, audio module 170, sensor module 176, interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, user identification module (SIM) 196, or antenna module 197. In some embodiments, at least one of the components (e.g., connection terminal 178) may be omitted from electronic device 101, or one or more other components may be added to electronic device 101. In some embodiments, some components of the assembly (e.g., sensor module 176, camera module 180, or antenna module 197) may be implemented as a single component (e.g., display module 160).

[0029] Processor 120 may run software (e.g., program 140) to control at least one other component (e.g., hardware or software component) of electronic device 101 coupled to processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of data processing or calculation, processor 120 may store commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132, process the commands or data stored in volatile memory 132, and store the resulting data in non-volatile memory 134. According to embodiments, processor 120 may include a main processor 121 (e.g., central processing unit (CPU) or application processor (AP)) or a secondary processor 123 (e.g., graphics processing unit (GPU), neural processing unit (NPU), image signal processor (ISP), sensor central processor, or communication processor (CP)) that may operate independently of or in conjunction with the main processor 121. For example, when electronic device 101 includes a main processor 121 and a secondary processor 123, the secondary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be dedicated to a specific function. The secondary processor 123 may be implemented separately from the main processor 121 or as part of the main processor 121.

[0030] While the main processor 121 is inactive (e.g., in sleep) mode, the auxiliary processor 123 can take over from the main processor 121 to control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190), or while the main processor 121 is active (e.g., running an application), the auxiliary processor 123 can work with the main processor 121 to control at least some of these functions or states. According to embodiments, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) can be implemented as part of another component (e.g., camera module 180 or communication module 190) functionally associated with the auxiliary processor 123. According to embodiments, the auxiliary processor 123 (e.g., a neural processing unit) can include hardware structures defined for processing artificial intelligence models. Artificial intelligence models can be generated through machine learning. This learning can be performed, for example, by the electronic device 101 in which artificial intelligence is performed or via a separate server (e.g., server 108). Learning algorithms can include, but are not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. Artificial intelligence models can include multiple layers of artificial neural networks. Artificial neural networks can be, but are not limited to, deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted Boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), deep Q-networks, or combinations of two or more of these. Artificial intelligence models can additionally or alternatively include software structures in addition to hardware structures.

[0031] Memory 130 may store various data used by at least one component of electronic device 101 (e.g., processor 120 or sensor module 176). The various data may include, for example, software (e.g., program 140) and input or output data for commands associated therewith. Memory 130 may include volatile memory 132 or non-volatile memory 134.

[0032] Program 140 may be stored as software in memory 130 and may include, for example, an operating system (OS) 142, middleware 144, or application 146.

[0033] Input module 150 can receive commands or data from outside electronic device 101 (e.g., a user) to be used by another component of electronic device 101 (e.g., processor 120). Input module 150 may include, for example, a microphone, mouse, keyboard, keys (e.g., buttons), or digital pen (e.g., a stylus).

[0034] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. According to an embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0035] Display module 160 can visually provide information to the outside of electronic device 101 (e.g., to a user). Display module 160 may include, for example, a display, a holographic device, or a projector, and control circuitry for controlling a corresponding one of the display, holographic device, and projector. According to an embodiment, display module 160 may include a touch sensor adapted to detect touch, or a pressure sensor adapted to measure the intensity of the force caused by touch.

[0036] The audio module 170 can convert sound into electrical signals and vice versa. According to an embodiment, the audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or headphones of an external electronic device (e.g., electronic device 102) that is directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0037] Sensor module 176 can detect the operating state of electronic device 101 (e.g., power or temperature) or the environmental state outside electronic device 101 (e.g., user state), and then generate an electrical signal or data value corresponding to the detected state. According to embodiments, sensor module 176 may include, for example, a gesture sensor, gyroscope sensor, atmospheric pressure sensor, magnetic sensor, accelerometer, grip sensor, proximity sensor, color sensor, infrared (IR) sensor, biometric sensor, temperature sensor, humidity sensor, or illuminance sensor.

[0038] Interface 177 may support one or more specific protocols used to enable direct (e.g., wired) or wireless connection between electronic device 101 and external electronic device (e.g., electronic device 102). According to embodiments, interface 177 may include, for example, a High Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital Card (SD) interface, or an audio interface.

[0039] Connection end 178 may include a connector via which electronic device 101 can be physically connected to an external electronic device (e.g., electronic device 102). According to embodiments, connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0040] The tactile module 179 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation, which a user can identify through their tactile or kinesthetic perception. According to embodiments, the tactile module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0041] Camera module 180 can capture still or moving images. According to an embodiment, camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0042] The power management module 188 can manage the power supplied to the electronic device 101. According to one embodiment, the power management module 188 can be implemented as at least part of, for example, a power management integrated circuit (PMIC).

[0043] Battery 189 can supply power to at least one component of electronic device 101. According to embodiments, battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0044] Communication module 190 can support the establishment of a direct (e.g., wired) or wireless communication channel between electronic device 101 and external electronic devices (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. Communication module 190 may include one or more communication processors that can operate independently of processor 120 (e.g., application processor (AP)) and support direct (e.g., wired) or wireless communication. According to embodiments, communication module 190 may include wireless communication module 192 (e.g., cellular communication module, short-range wireless communication module, or Global Navigation Satellite System (GNSS) communication module) or wired communication module 194 (e.g., local area network (LAN) communication module or power line communication (PLC) module). A corresponding communication module of these modules can communicate via a first network 198 (e.g., a short-range communication network, such as Bluetooth). TM The communication module 192 communicates with external electronic devices via a first network 198 or a second network 199 (e.g., a long-range communication network, such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These different types of communication modules can be implemented as a single component (e.g., a single chip) or as multiple components (e.g., multiple chips) that are separate from each other. The wireless communication module 192 can use user identification information (e.g., the International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196 to identify and authenticate electronic devices 101 in communication networks such as the first network 198 or the second network 199.

[0045] Wireless communication module 192 can support 5G networks and next-generation communication technologies, such as New Radio (NR) access technologies, following 4G networks. NR access technologies can support enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), or ultra-reliable low-latency communications (URLLC). Wireless communication module 192 can support high-frequency bands (e.g., millimeter-wave bands) to achieve, for example, high data transmission rates. Wireless communication module 192 can support various technologies used to ensure performance in high-frequency bands, such as, for example, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or large antennas. Wireless communication module 192 can support various requirements specified in electronic device 101, external electronic devices (e.g., electronic device 104), or network systems (e.g., second network 199). According to an embodiment, the wireless communication module 192 may support peak data rates (e.g., 20 Gbps or higher) for implementing eMBB, lost coverage (e.g., 164 dB or lower) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or lower, or 1 ms or lower round trip for each of the downlink (DL) and uplink (UL)) for implementing URLLC.

[0046] Antenna module 197 can transmit or receive signals or power to or from the outside of electronic device 101 (e.g., external electronic device). According to an embodiment, antenna module 197 may include an antenna comprising a radiating element formed of conductive material or conductive patterns formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, antenna module 197 may include multiple antennas (e.g., an array antenna). In this case, for example, communication module 190 (e.g., wireless communication module 192) may select at least one antenna from the multiple antennas suitable for a communication scheme used in a communication network such as a first network 198 or a second network 199. Signals or power can then be transmitted or received between communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, another component besides the radiating element (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of antenna module 197.

[0047] According to various embodiments, antenna module 197 can form a millimeter-wave antenna module. According to embodiments, the millimeter-wave antenna module may include: a printed circuit board; an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high-frequency band (e.g., millimeter-wave band); and a plurality of antennas (e.g., an array antenna) disposed on or adjacent to a second surface (e.g., top or side surface) of the printed circuit board and capable of transmitting or receiving signals of the specified high-frequency band.

[0048] At least some of the aforementioned components can be coupled to each other and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI) or mobile industrial processor interface (MIPI)).

[0049] According to an embodiment, commands or data can be transmitted or received between electronic device 101 and external electronic device 104 via server 108 connected to a second network 199. Each of electronic devices 102 or 104 can be a device of the same or different type as electronic device 101. According to an embodiment, all or some of the operations to be performed on electronic device 101 can be performed on one or more of external electronic devices 102, 104, and 108. For example, if electronic device 101 is required to perform a function or service automatically or in response to a request from a user or another device, electronic device 101 may request one or more external electronic devices to perform at least a portion of the function or service instead of running the function or service, or electronic device 101 may request the one or more external electronic devices to perform at least a portion of the function or service in addition to running the function or service. The one or more external electronic devices receiving the request may perform at least a portion of the requested function or service, or additional functions or services associated with the request, and transmit the result of the execution to electronic device 101. Electronic device 101 may provide the result as at least part of a response to the request, with or without further processing of the result. For this purpose, technologies such as cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing can be used. Electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment, external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and / or neural networks. According to embodiments, external electronic device 104 or server 108 may be included in a second network 199. Electronic device 101 can be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology or IoT-related technologies.

[0050] Figure 2a and Figure 2b This is a perspective view of an electronic device according to an embodiment.

[0051] refer to Figure 2a and Figure 2b The electronic device 200 according to the embodiment (e.g., Figure 1The electronic device 201 may include a housing 210 and engaging members 250 and 260. The housing 210 includes a first surface (or front surface) 210A, a second surface (or rear surface) 210B, and a side surface 210C surrounding a space between the first surface 210A and the second surface 210B. The engaging members 250 and 260 are attached to at least a portion of the housing 210 and configured to detachably attach the electronic device 200 to a part of a user's body (e.g., wrist, ankle, etc.). In another embodiment (not shown), the housing may also refer to a structure formed... Figure 2a The structure comprises at least a portion of a first surface 210A, a second surface 210B, and a side surface 210C. According to an embodiment, at least a portion of the first surface 210A may be achieved by a substantially transparent front panel 201 (e.g., a glass or polymer panel comprising various coatings). The second surface 210B may be achieved by a substantially opaque rear panel 207. The rear panel 207 may be made of, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of these materials. The side surface 210C may be connected to the front panel 201 and the rear panel 207, and may be achieved by a side frame structure (or “side member”) 206 comprising metal and / or polymer. In some embodiments, the rear panel 207 and the side frame structure 206 may be integrally formed and may comprise the same material (e.g., a metallic material such as aluminum). The joining members 250 and 260 may be made of various materials and may be formed in various shapes. The joining components 250 and 260 may be made of woven fabric, leather, rubber, polyurethane, metal, ceramic, or a combination of at least two of these materials.

[0052] According to an embodiment, the electronic device 200 may include a display 220 (see [link]). Figure 3 The electronic device 200 may include at least one of the following components: audio modules 205 and 208, sensor module 211, key input devices 202, 203 and 204, and connector hole 209. In some embodiments, the electronic device 200 may omit at least one of the components (e.g., key input devices 202, 203 and 204, connector hole 209, or sensor module 211), or may include another component.

[0053] Display 220 may be exposed, for example, through a large portion of front panel 201. The shape of display 220 may correspond to the shape of front panel 201, such as circular (shown in Figure 2), elliptical, or polygonal. Display 220 may be connected to or adjacent to touch sensing circuitry, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a fingerprint sensor.

[0054] Audio modules 205 and 208 may include a microphone hole 205 and a speaker hole 208. A microphone for acquiring external sound may be disposed within the microphone hole 205, and in some embodiments, multiple microphones may be provided to detect the direction of sound. The speaker hole 208 may be used with an external speaker and a receiver for telephone calls. In some embodiments, the speaker hole 208 and microphone hole 205 may be implemented as a single hole, or a speaker (e.g., a piezoelectric speaker) may be included without a speaker hole 208.

[0055] Sensor module 211 can generate one or more electrical signals or data values ​​corresponding to one or more internal operating states or external environmental states of electronic device 200. Sensor module 211 may include, for example, a biometric sensor module 211 (e.g., a heart rate monitor (HRM) sensor) disposed on the second surface 210B of housing 210. Electronic device 200 may also include at least one sensor module (not shown), such as a gesture sensor, gyroscope sensor, pressure sensor, magnetic sensor, accelerometer, grip sensor, color sensor, infrared sensor, biometric sensor, humidity sensor, and / or illuminance sensor.

[0056] Sensor module 211 may include electrode regions 213 and 214 forming part of the surface of electronic device 200, and a biosignal detection circuit (not shown) electrically connected to electrode regions 213 and 214. For example, electrode regions 213 and 214 may include a first electrode region 213 and a second electrode region 214 disposed on a second surface 210B of housing 210. Sensor module 211 may be configured such that electrode regions 213 and 214 receive one or more electrical signals from a part of the user's body, and the biosignal detection circuit may detect the user's biometric information based on one or more electrical signals.

[0057] Key input devices 202, 203, and 204 may include a scroll wheel key 202 disposed on a first surface 210A of housing 210 and rotatable in at least one direction, and / or side buttons 203 and 204 disposed on a side surface 210C of housing 210. The scroll wheel key may have a shape corresponding to the shape of the front panel 201. In another embodiment, electronic device 200 may not include some or all of the key input devices 202, 203, and 204 described above, and the excluded key input devices 202, 203, and 204 may be implemented in other forms, such as soft keys on display 220. Connector hole 209 may accommodate a connector (e.g., a USB connector) for transmitting and receiving power and / or data to and from an external electronic device, and may include another connector hole (not shown) capable of accommodating a connector for transmitting and receiving audio signals to and from an external electronic device. The electronic device 200 may also include, for example, a connector cover (not shown) that covers at least a portion of the connector hole 209 and prevents external foreign matter from flowing into the connector hole.

[0058] Engaging members 250 and 260 can be detachably attached to at least a portion of housing 210 using locking members 251, 261. Engaging members 250 and 260 may include one or more of a retaining member 252, a retaining member fastening hole 253, a guide member 254, and a retaining ring 255.

[0059] The retaining member 252 can be configured to secure the housing 210 and the engaging members 250 and 260 to a part of the user's body (e.g., wrist, ankle, etc.). A retaining member fastening hole 253 can correspond to the retaining member 252 to secure the housing 210 and the engaging members 250 and 260 to the user's body. A guide member 254 can be configured to restrict the range of motion of the engaging member 252 when the retaining member 252 is fastened to the retaining member fastening hole 253, such that the engaging members 250 and 260 are attached to fit snugly against the user's body. A retaining ring 255 can restrict the range of motion of the retaining members 250 and 260 when the retaining member 252 and the retaining member fastening hole 253 are fastened. Figure 3 This is an exploded perspective view of an electronic device according to an embodiment.

[0060] refer to Figure 3 Electronic device 300 (e.g., Figure 1 Electronic device 101 Figure 2a and / or Figure 2bThe electronic device 300 may include a side bezel structure 310, a scroll wheel 320, a front panel 201, a display 220, a first antenna 350, a second antenna 355, a support member 360 (e.g., a bracket), a battery 370, a printed circuit board 380, a sealing member 390, and coupling members 395 and 397. At least one component of the electronic device 300 may be coupled with... Figure 1 , Figure 2a and / or Figure 2b At least one of the components of the electronic device 200 is identical or similar, and repeated descriptions thereof will be omitted. The support member 360 may be disposed within the electronic device 300 to connect to the side bezel structure 310, or may be integrated with the side bezel structure 310. The support member 360 may be made of, for example, metallic and / or non-metallic (e.g., polymer) materials. The display 220 may be connected to one surface of the support member 360, and the printed circuit board 380 may be connected to the other surface of the support member 360. A processor, memory, and / or interface may be mounted on the printed circuit board 380. The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit (GPU), a sensor processor, or a communication processor.

[0061] The memory may include, for example, volatile 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. For example, the interface can electrically or physically connect the electronic device 300 to an external electronic device, and may include a USB connector, an SD card / MMC connector, or an audio connector.

[0062] Battery 370 is a device for supplying power to at least one component of electronic device 300, and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. At least a portion of battery 370 may be disposed on a plane substantially the same as, for example, a printed circuit board 380. Battery 370 may be integrally disposed within electronic device 200 or may be detachably connected to electronic device 200.

[0063] A first antenna 350 may be disposed between the display 220 and the support member 360. The first antenna 350 may include, for example, a near-field communication (NFC) antenna, a wireless charging antenna, and / or a magnetically secure transmission (MST) antenna. The first antenna 350 may, for example, perform short-range communication with an external device, wirelessly transmit and receive power required for charging, and transmit short-range communication signals or electromagnetic signals including payment data. In another embodiment, the antenna structure may be formed by at least a portion of the side bezel structure 310 and / or a portion of the support member 360, or a combination thereof. A second antenna 355 may be disposed between the printed circuit board 380 and the rear panel 393. The second antenna 355 may include, for example, a near-field communication (NFC) antenna, a wireless charging antenna, and / or a magnetically secure transmission (MST) antenna. For example, the second antenna 355 may perform short-range communication with an external device, wirelessly transmit and receive power required for charging, and may transmit short-range communication signals or electromagnetic signals including payment data. In another embodiment, the antenna structure may be formed by at least a portion of the side bezel structure 310 and / or a portion of the rear panel 393, or a combination thereof.

[0064] The sealing member 390 can be positioned between the side frame structure 310 and the rear panel 393. The sealing member 390 can be configured to prevent moisture and foreign matter from flowing into the space surrounded by the side frame structure 310 and the rear panel 393. Figure 4 This is a perspective view of the second surface of an electronic device according to an embodiment.

[0065] refer to Figure 4 The electronic device 400 according to an embodiment may include a housing 410, a printed circuit board 420, a window 430, a PPG sensor 440, a laser sensor 450, and an index layer or refractive index layer 460. According to an embodiment, the electronic device 400 may be referred to as... Figure 1 Electronic device 101 Figure 2a and / or Figure 2b Electronic devices 200 and / or Figure 3 The electronic device 300. According to an embodiment, when worn by a user, the electronic device 400 can contact a part of the user's body. For example, when the electronic device 400 is worn by a user, a portion of the second surface 410b of the electronic device 400 can contact at least a portion of the user's wrist.

[0066] The housing 410 can provide the overall external shape of the electronic device 400. According to an embodiment, the housing 410 may include a first surface (e.g., Figure 2a The first surface 210A and the second surface 410b facing the first surface 210A. The second surface 410b can be connected to... Figure 2bThe second surface 210B is substantially the same. According to an embodiment, when the electronic device 400 is worn by a user, the second surface 410b may face or contact a part of the user's body. According to an embodiment, the housing 410 may include an internal space 411 in which various components of the electronic device 400 are disposed. For example, the internal space 411 may consist of side surfaces extending from the periphery of the first surface 210A and the second surface 410b (e.g., Figure 2a The side surface 210c), the first surface 210A, and the second surface 410b are defined.

[0067] The printed circuit board 420 can be electrically connected to various components of the electronic device 400 that perform various operations of the electronic device 400. According to an embodiment, the printed circuit board 420 can be disposed within an internal space 411 formed by the housing 410. According to an embodiment, the printed circuit board 420 can be electrically connected to various electronic components disposed on the printed circuit board 420 or to various components of the electronic device 400 disposed outside the printed circuit board 420. According to an embodiment, the printed circuit board 420 can be electrically connected to various components of the electronic device 400 via connecting members (not shown). For example, the connecting members may include coaxial cable connectors, board-to-board connectors, interposers, or flexible printed circuit boards (FPCBs).

[0068] Window 430 can protect internal components of electronic device 400. According to an embodiment, window 430 can be connected to housing 410 to protect printed circuit board 420 within housing 410. For example, window 430 can form part of a second surface 410b of housing 410. According to an embodiment, at least a portion of window 430 can be configured to be transparent to transmit light. For example, at least a portion of window 430 can be made of a substantially transparent material to transmit light, and the housing 410 surrounding window 430 can be made of a substantially opaque material to prevent light transmission.

[0069] According to an embodiment, window 430 may include a plurality of openings 431. The plurality of openings 431 may be areas of window 430 configured to transmit light. For example, window 430 may include light-absorbing material in one or more areas other than the areas corresponding to the plurality of openings 431. Because the light-absorbing material is disposed within window 430, the areas other than the areas corresponding to the plurality of openings 431 may not transmit light. According to an embodiment, a layer including a light-blocking material (e.g., a light-absorbing material) (e.g., Figure 6The absorption layer 434 can be coated below the window 430. For example, the multiple openings 431 can form a path for light to travel into the housing 410, because the light-blocking material is disposed in one or more regions of the layer that do not correspond to the multiple openings 431, and the light-blocking material is not disposed in the regions of the layer that correspond to the multiple openings 431.

[0070] According to an embodiment, window 430 may include a first region 432 and a second region 433. The first region 432 may be substantially parallel to the printed circuit board 420. For example, the printed circuit board 420 may be a planar shape extending in the internal space 411, and the first region 432 may be a planar shape substantially parallel to the printed circuit board 420. The second region 433 may connect the first region 432 and the housing 410. According to an embodiment, the second region 433 may surround the first region 432. A portion of the second surface 410b of the housing 410 may be outside and surround the second region 433. For example, the second region 433, unlike the first region 432, may be formed to have curvature, but is not limited thereto; the second region 433 may be substantially parallel to the printed circuit board 420, similar to the first region 432.

[0071] According to an embodiment, the window 430 may be spaced apart from the printed circuit board 420. Because the window 430 is spaced apart from the printed circuit board 420, components disposed on the printed circuit board 420 (e.g., the PPG sensor 440 and the laser sensor 450) can be protected. When the window 430 and the printed circuit board 420 are in direct contact with each other, the components disposed on the printed circuit board 420 and the printed circuit board 420 may be damaged by impacts applied from outside the electronic device 400. Because the window 430 is spaced apart from the printed circuit board 420, these impacts can be attenuated when they reach the printed circuit board 420. The space formed between the window 430 and the printed circuit board 420 can accommodate various components of the electronic device 400.

[0072] The PPG sensor 440 can acquire first biometric data related to the user's body. The first biometric data may include at least one of heart rate, changes in the user's heart rate over a preset time interval, oxygen saturation, and blood pressure. According to an embodiment, when the electronic device 400 is worn by the user, the PPG sensor 440 may face or contact a part of the user's body. The PPG sensor 440 may be configured to emit light toward the user's body and receive light reflected from the user's body to detect changes in blood flow within the user's microvessels. Within the user's body, the volume of microvessels can be altered by changing blood flow due to the periodic contraction or relaxation of the heart. The degree to which light transmitted to the user's body is absorbed by the body varies depending on the changes in blood flow in the microvessels. The PPG sensor 440 can acquire the first biometric data based on the intensity of light reflected from the user's body.

[0073] According to an embodiment, the PPG sensor 440 can be disposed on a printed circuit board 420 in the housing 410. According to an embodiment, the PPG sensor 440 may include at least one first light emitting unit 441 and at least one first receiving unit 442. The first light emitting units 441 and the first receiving units 442 may correspond to each other. For example, the number of first light emitting units 441 and the number of first receiving units 442 may be the same, and the same number of first light emitting units 441 and first receiving units 442 can constitute the PPG sensor 440. As another example, the number of first light emitting units 441 and the number of first receiving units 442 may be different, and different numbers of first light emitting units 441 and first receiving units 442 can constitute the PPG sensor 440.

[0074] The first light emitting unit 441 can be configured to emit light toward a portion of the user's body that is in contact with the electronic device 400 when the electronic device 400 is worn by the user. The first light emitting unit 441 can be configured to emit light toward a portion of the user's body at a first beam angle. For example, the first beam angle can be approximately 120 degrees, but is not limited thereto. The first light emitting unit 441 can be, for example, a light-emitting diode (LED), but is not limited thereto. For example, the first light emitting unit 441 can include a laser source that emits laser light (e.g., a laser diode (LD) and / or a solid-state laser). According to embodiments, there are multiple first light emitting units 441, and the multiple first light emitting units 441a, 441b, and 441c can emit light with different wavelengths. According to embodiments, the first light emitting units 441a, 441b, and 441c can emit light in the visible wavelength range. For example, the first light emitting units 441a, 441b, and 441c can emit green light to measure the user's heart rate, pressure, or blood pressure, or emit red light to measure the user's oxygen saturation. According to an embodiment, the total wavelength bandwidth of the light emitted by the plurality of first light emitting units 441a, 441b and 441c may be from about 500 nm to about 1000 nm, but is not limited thereto.

[0075] The first receiver 442 can be configured to receive light emitted from the first light emitter 441 and reflected from a part of the user's body. The first receiver 442 can generate an electrical signal corresponding to the light reflected from the body part. The electrical signal generated by the first receiver 442 can be transmitted to a processor (e.g., a printed circuit board 420). Figure 1 (Processor 120). For example, the first receiving unit 442 may refer to a photodiode, but is not limited thereto. According to an embodiment, the first receiving unit 442 may be spaced apart from the first light emitting unit 441 and disposed on a printed circuit board 420. Since the receiving unit 442 and the first light emitting unit 441 are spaced apart from each other, crosstalk between the light emitted from the first light emitting unit 441 and the light received by the first receiving unit 442 can be reduced.

[0076] The laser sensor 450 can acquire second biometric data related to the user's body. For example, the second biometric data could be the user's blood glucose level or blood alcohol content. According to an embodiment, when the electronic device 400 is worn by the user, the laser sensor 450 can face or contact a part of the user's body. The laser sensor 450 can be configured to emit light toward the user's body and receive light reflected from the user's body. For example, the light emitted from the laser sensor 450 can penetrate the user's body to reach specific substances in the user's body (e.g., glucose or alcohol molecules in blood vessels), change wavelength or intensity, or generate vibrations. The laser sensor 450 can acquire second biometric data based on the wavelength, intensity, or vibration of the light reflected from the user's body.

[0077] According to an embodiment, the laser sensor 450 may include at least one second light emitting unit 451 and at least one second receiving unit 452. The at least one second light emitting unit 451 and the second receiving unit 452 may correspond to each other. For example, the number of second light emitting units 451 and the number of second receiving units 452 may be the same, and the same number of second light emitting units 451 and second receiving units 452 can constitute the laser sensor 450. As another example, the number of second light emitting units 451 and the number of second receiving units 452 may be different, and different numbers of second light emitting units 451 and second receiving units 452 can constitute the laser sensor 450.

[0078] According to an embodiment, the second light emitting unit 451 can be configured to emit light toward a part of the user's body that is in contact with the electronic device 400 when the electronic device 400 is worn by the user. According to an embodiment, the light emitted by the second light emitting unit 451 of the laser sensor 450 can have higher directivity than the light emitted by the first light emitting unit 441 of the PPG sensor 440. The second light emitting unit 451 can be configured to emit light toward a part of the user's body with a second beam angle smaller than the first beam angle. For example, the second beam angle can be approximately 5 degrees, but is not limited thereto. According to an embodiment, the second light emitting unit 451 can emit light in the infrared band, including the near-infrared region. For example, multiple second light emitting units 451 can exist, and each of the multiple second light emitting units 451 can be a laser source emitting light of a different wavelength. The multiple second light emitting units 451 can form a laser array. For example, the total wavelength bandwidth of the light emitted by the multiple second light emitting units 451 can be approximately 1200 nm to 2400 nm, but is not limited thereto.

[0079] According to an embodiment, since the second light emitting unit 451 includes a laser modulator, the number of second light emitting units 451 may not correspond to the number of light beams with different characteristics emitted from the second light emitting unit 451. The second light emitting unit 451 can emit laser beams with different characteristics, for example, by using a laser modulator to change the wavelength of the laser emitted from a single laser source, without requiring a dedicated laser source for each specific beam. For example, when the second light emitting unit 451 includes a single laser source, the second light emitting unit 451 can emit laser beams with different characteristics from a single laser source by using a modulator to sequentially change the wavelength of the laser emitted from one laser source. In another example, when the second light emitting unit 451 includes multiple laser sources, the second light emitting unit 451 can simultaneously emit laser beams with different characteristics by using a modulator to change the wavelength of the laser emitted from multiple laser sources. The second receiving unit 452 can be configured to receive light emitted from the second light emitting unit 451 and reflected from a part of the user's body. The second receiving unit 452 can generate an electrical signal corresponding to the light reflected from the part of the body. The electrical signal generated by the second receiving unit 452 can be transmitted to the processor (e.g., via the printed circuit board 420) Figure 1 (Processor 120). For example, the second receiver 452 can be implemented as a photodiode, but is not limited thereto. According to an embodiment, the second receiver 452 can be spaced apart from the second light emitter 451 and is disposed on a printed circuit board 420. Since the second receiver 452 and the second light emitter 451 are spaced apart from each other, crosstalk between the light emitted by the second light emitter and the light received by the second receiver can be reduced. According to an embodiment, since the light emitted by the second light emitter 451 of the laser sensor 450 has stronger directionality than the light emitted by the first light emitter 441 of the PPG sensor 440, the distance between the second light emitter 451 and the second receiver 452 can be smaller than the distance between the first light emitter 441 and the first receiver 442.

[0080] According to an embodiment, at least one second light emitting unit 451 may include a plurality of second light emitting units 451 that emit light with different wavelengths, and at least one first light emitting unit 441 may include a plurality of first light emitting units 441a, 441b, and 441c that emit light with different wavelengths. The wavelength range of the light emitted by the plurality of second light emitting units 451 may be narrower than the wavelength range of the light emitted by the plurality of first light emitting units 441. According to an embodiment, the plurality of second light emitting units 451 may be a plurality of laser light sources that emit light with different wavelengths, and each of the plurality of first light emitting units 441a, 441b, and 441c may be an LED. When an LED is configured to emit light with a specified wavelength, the wavelength range of the light emitted from the LED may be wider than the wavelength range of the light emitted from the laser light source because the light emitted from the LED has lower monochromaticity than the light emitted from the laser light source. For example, the wavelength range of light emitted from an LED configured to emit light at a wavelength of 500 nm can be approximately 450 nm to 550 nm, but the wavelength range of light emitted from a laser source configured to emit light at a wavelength of 1300 nm can be approximately 1299 nm to 1301 nm.

[0081] According to an embodiment, the laser sensor 450 may be disposed on the printed circuit board 420 in a manner surrounding (encircling) the PPG sensor 440. For example, at least one first light emitting portion 441 and at least one first receiving portion 442 forming the PPG sensor 440 may surround the periphery of the laser sensor 450. For example, at least one first light emitting portion 441 may include a plurality of first light emitting portions 441a, 441b, and 441c that emit light of different wavelengths so that the electronic device 400 can obtain various first biometric information. Since each of the plurality of first light emitting portions 441a, 441b, and 441c has a first beam angle, the plurality of first light emitting portions 441a, 441b, and 441c may be spaced apart from each other so that the light emitted by the plurality of first light emitting portions 441a, 441b, and 441c does not interfere with each other. The second light emitting unit 451 can be spaced apart from each of the plurality of first light emitting units 441a, 441b, and 441c to reduce crosstalk between the light emitted by the second light emitting unit 451 and the plurality of first light emitting units 441a, 441b, and 441c. When the plurality of first light emitting units 441a, 441b, and 441c are not arranged to surround the second light emitting unit 451, there may be insufficient space in the electronic device 400, which is miniaturized to be worn on a part of the user's body, to arrange the plurality of first light emitting units 441a, 441b, and 441c. When the plurality of first light emitting units 441a, 441b, and 441c are arranged on the printed circuit board 420 in a manner surrounding the second light emitting unit 451, the electronic device 400 can arrange the required number of the plurality of first light emitting units 441a, 441b, and 441c within the limited internal space of the electronic device 400. When multiple first light emitting units 441a, 441b, and 441c are arranged to surround the second light emitting unit 451, the laser sensor 450 can be configured to be surrounded by the PPG sensor 440 because the distance between at least one second light emitting unit 451 and at least one second receiving unit 452 forming the laser sensor 450 is closer than the distance between the multiple first light emitting units 441a, 441b, and 441c and the first receiving unit 442 forming the PPG sensor 440. According to an embodiment, since the PPG sensor 440 is disposed on the printed circuit board 420 to surround the laser sensor 450, the electronic device 400 can provide various biometric information to the user by arranging PPG sensors 440 and laser sensors 450 with different optical properties within the limited internal space of the electronic device.

[0082] According to an embodiment, the laser sensor 450 can be configured to overlap with a first region 432 of the window 430 when viewed from the outside of the electronic device 400. When the laser sensor 450 is not located in the area of ​​the printed circuit board 420 corresponding to the first region 432 of the window 430, light emitted from the second light emitting unit 451 may not be transmitted to the user's body, or the second receiving unit 452 may not receive the light. According to an embodiment, when the laser sensor 450 is configured to overlap with the first region 432 of the window 430, when viewing the window 430 from the outside of the electronic device 400 (i.e., in a top view), the electronic device 400 can transmit light emitted from the second light emitting unit 451 to the user, or can retain light reception at the second receiving unit 452. For example, when the laser sensor 450 is configured to overlap with the first region 432, light emitted from the second light emitting unit 451 can be incident substantially perpendicularly on the first region 432 and a portion of the user's body. When light emitted from the second light emitting unit 451 is substantially perpendicular to a part of the user's body for transmission to that part, the possibility of loss due to refraction can be reduced. In another example, when the laser sensor 450 is configured to overlap with the first region 432, light reflected from a part of the user's body can be incident on the first region 432 when it is received by the second receiving unit 452. When light reflected from a part of the user's body substantially perpendicular to the first region 432 is received by the second receiving unit 452, the possibility of loss due to refraction can be reduced.

[0083] According to an embodiment, the PPG sensor 440 may be disposed on a printed circuit board 420 to overlap with a second region 433 of the window 430 when the window 430 is viewed from the outside of the electronic device 400.

[0084] According to an embodiment, the refractive index layer 460 can reduce the refractive index difference between the internal space 411 and the window 430. The refractive index layer 460 can form a path for light to travel from the second light emitting unit 451 to the window 430, or a path for light to travel from the window 430 to the second receiving unit 452. The refractive index layer 460 can protect the laser sensor 450 from forces applied from outside the electronic device 400. For example, the refractive index layer 460 can fill between the second light emitting unit 451 and the window 430 to reduce the refractive index difference between the window 430 and the second light emitting unit 451, and protect the second light emitting unit 451 from external impacts. The refractive index layer 460 can be made of a transparent material and can be elastic. According to an embodiment, the refractive index layer 460 can be disposed on the laser sensor 450 to overlap with the laser sensor 450 when the window 430 is viewed from outside the electronic device 400. For example, when the refractive index layer 460 is not used, the light emitted from the second light emitting unit 451 may be scattered due to the refractive index difference between the internal space 411 and the window 430, or the second receiving unit 452 may not receive the light. When the light emitted from the second light emitting unit 451 is scattered or the light is not received by the second receiving unit 452, the performance of the laser sensor 450 may deteriorate. According to an embodiment, the electronic device 400 may include the refractive index layer 460, which compensates for the refractive index difference between the internal space 411 and the window 430 to improve the performance of the laser sensor 450. According to an embodiment, the refractive index layer 460 may be made of a light-transmitting material. For example, the refractive index layer 460 may be made of at least one of polyethylene and rubber, but is not limited thereto.

[0085] As described above, since the PPG sensor 440 is disposed on the printed circuit board 420 surrounding the laser sensor 450, the electronic device 400 according to the embodiment can arrange the PPG sensor 440 and the laser sensor 450 with different optical properties within a limited space. According to the embodiment, the electronic device 400 can provide various biometric information to the user by including the PPG sensor 440 and the laser sensor 450.

[0086] According to an embodiment, when the laser sensor 450 is configured to overlap with the first region 432 of the window 430 when viewed from the outside of the electronic device 400, the electronic device 400 transmits light emitted from the second light emitting unit 451 to the user, or maintains light reception by the second receiving unit 452.

[0087] Figure 5a This is a top view illustrating an example of the arrangement relationship between the PPG sensor and the laser sensor in an electronic device according to an embodiment.

[0088] refer to Figure 5aAccording to the embodiment, the PPG sensor 440 of the electronic device 400 may include a plurality of first light emitting units 441a, 441b, 441c and 441d and a plurality of first receiving units 442a, 442b, 442c and 442d.

[0089] According to an embodiment, the external shape of the laser sensor 450 may be substantially circular, but is not limited thereto. For example, the printed circuit board 420 may be substantially circular, and the laser sensor 450 may be disposed on the printed circuit board 420 adjacent to the center of the printed circuit board 420.

[0090] According to an embodiment, the PPG sensor 440 may be spaced apart from the laser sensor 450 in the radial direction. By being spaced apart in the radial direction, the PPG sensor 440 can surround the laser sensor 450 from the outside of the laser sensor 450.

[0091] According to an embodiment, the plurality of first light emitting portions 441a, 441b, 441c, and 441d of the PPG sensor 440 may be spaced apart from each other. For example, the plurality of first light emitting portions 441a, 441b, 441c, and 441d may be spaced apart from each other along the periphery of the laser sensor 450.

[0092] According to an embodiment, the plurality of first receiving portions 442a, 442b, 442c, and 442d of the PPG sensor 440 may be spaced apart from each other. For example, each of the plurality of first receiving portions 442a, 442b, 442c, and 442d may be located in the space between the plurality of first light emitting portions 441a, 441b, 441c, and 441d along the periphery of the laser sensor 450.

[0093] As described above, since the PPG sensor 440 is disposed on the printed circuit board 420 surrounding the laser sensor 450, the electronic device 400 according to the embodiment can arrange the PPG sensor 440 and the laser sensor 450 with different optical properties within a limited space. According to the embodiment, the electronic device 400 can provide various biometric information to the user by including the PPG sensor 440 and the laser sensor 450.

[0094] Figure 5b This is a top view illustrating another example of the arrangement relationship between the PPG sensor and the laser sensor in an electronic device according to an embodiment.

[0095] refer to Figure 5bAccording to an embodiment, the PPG sensor 440 of the electronic device 400 may include a plurality of first light emitting units 441a, 441b, 441c and 441d and a plurality of first receiving units 442a, 442b, 442c, 442d and 442e.

[0096] According to an embodiment, the external shape of the laser sensor 450 may be substantially circular, but is not limited thereto. For example, the printed circuit board 420 may be substantially circular, and the laser sensor 450 may be disposed on the printed circuit board 420 adjacent to the center of the printed circuit board 420.

[0097] According to an embodiment, the PPG sensor 440 may be spaced apart from the laser sensor 450 in the radial direction. By being spaced apart in the radial direction, the PPG sensor 440 can surround the laser sensor 450 from the outside of the laser sensor 450.

[0098] According to an embodiment, a plurality of first light emitting portions 441a, 441b, 441c, and 441d of the PPG sensor 440 may surround the laser sensor 450 from the outside. For example, the plurality of first light emitting portions 441a, 441b, 441c, and 441d may be spaced apart from each other along the periphery of the laser sensor 450.

[0099] According to an embodiment, a plurality of first receiving portions 442a, 442b, 442c, 442d, and 442e of the PPG sensor 440 may surround the plurality of first light emitting portions 441a, 441b, 441c, and 441d from the outside of the plurality of first light emitting portions 441a, 441b, 441c, and 441d. For example, the plurality of first receiving portions 442a, 442b, 442c, 442d, and 442e may be spaced apart from each other along the periphery of the plurality of first light emitting portions 441a, 441b, 441c, and 441d.

[0100] As described above, since the PPG sensor 440 is disposed on the printed circuit board 420 surrounding the laser sensor 450, the electronic device 400 according to the embodiment can arrange the PPG sensor 440 and the laser sensor 450 with different optical properties within a limited space. According to the embodiment, the electronic device 400 can provide various biometric information to the user by including the PPG sensor 440 and the laser sensor 450.

[0101] Figure 5c This is a top view illustrating yet another example of the arrangement relationship between the PPG sensor and the laser sensor in an electronic device according to an embodiment.

[0102] refer to Figure 5cAccording to the embodiment, the PPG sensor 440 of the electronic device 400 may include a plurality of first light emitting units 441a and 441b and a plurality of first receiving units 442a, 442b, 442c and 442d.

[0103] According to an embodiment, the laser sensor 450 may include a plurality of long sides 450a and 450b that are parallel to each other, and a plurality of short sides 450c and 450d that are parallel to each other and shorter than the length of the plurality of long sides.

[0104] According to an embodiment, a plurality of first light emitting portions 441a and 441b may be disposed on a printed circuit board 420, facing each other relative to the laser sensor 450. For example, a portion 441a of the plurality of first light emitting portions 441a and 441b may face a first long side 450a, and another portion 441b of the plurality of first light emitting portions 441a and 441b may face a second long side 450b.

[0105] According to an embodiment, a plurality of first receiving portions 442a, 442b, 442c, and 442d may be disposed on a printed circuit board 420, facing each other relative to the laser sensor 450. For example, a portion 442a and 442b of the plurality of first receiving portions 442a, 442b, 442c, and 442d may face the first long side 450a, and another portion 442c and 442d of the plurality of first receiving portions 442a, 442b, 442c, and 442d may face the second long side 450b.

[0106] As described above, since the PPG sensor 440 is disposed on the printed circuit board 420 surrounding the laser sensor 450, the electronic device 400 according to the embodiment can arrange the PPG sensor 440 and the laser sensor 450 with different optical properties within a limited space. According to the embodiment, the electronic device 400 can provide various biometric information to the user by including the PPG sensor 440 and the laser sensor 450.

[0107] Figure 6 This illustrates an electronic device along an embodiment. Figure 4 A cross-sectional view of an example of A-A' being cut.

[0108] refer to Figure 6According to an embodiment, the window 430 of the electronic device 400 may include an absorption layer 434. The absorption layer 434 may be inserted into the window 430 to absorb light passing through it. For example, the absorption layer 434 may be coated onto a surface 430a of the window 430 facing the printed circuit board 420. In another example, the absorption layer 434 may be located between a surface 430a of the window 430 facing the printed circuit board 420 and another surface 430b of the window 430 facing the exterior of the electronic device 400. Areas of the window 430 without the absorption layer 434 may be represented as a plurality of openings 431.

[0109] According to an embodiment, when viewing the window 430 from the outside of the electronic device 400, a plurality of openings 431 may be formed in the area of ​​the window 430 that overlaps with the first light emitting part 441, the first receiving part 442, the second light emitting part 451, and the second receiving part 452.

[0110] According to an embodiment, the refractive index layer 460 may be located between the window 430 and the laser sensor 450. For example, the refractive index layer 460 may extend from one surface of the laser sensor 450 facing the window 430 to another surface of the window 430 facing the laser sensor 450.

[0111] According to an embodiment, when the electronic device 400 is worn by a user, part B of the user's body deforms due to the window 430 and can come into contact with the first region 432 and the second region 433. When the second region 433 has curvature, and when the electronic device 400 is worn by the user, part B of the user's body deforms due to the window 430 to make close contact with the second region 433. When part B of the user's body is in close contact with the second region 433, the electronic device 400 can be fixed to the user's body, so that the electronic device 400 does not move relative to the user's body and can maintain a state of contact with part B of the user's body. For example, when the second region 433 does not have curvature, the electronic device 400 may not be in close contact with part B of the user's body, so the wearing position may not be fixed and may move relative to the user's body. When the electronic device 400 is not fixed, the light received by the second receiving unit 452 from the second light emitting unit 451 may include excessive noise, and therefore the performance of the laser sensor 450 may be degraded. According to an embodiment, the electronic device 400 can be fixed to a specific location on the user's body to ensure the performance of the laser sensor 450 by having a curvature to maximize the contact area with part B of the user's body.

[0112] According to an embodiment, a first light emitting unit 441 can emit light with a first beam angle θ1 toward a portion B of the user's body. The light emitted from the first light emitting unit 441 can sequentially pass through the internal space 411 and the window 430 and be transmitted to the portion B of the user's body. A portion of the light transmitted to the portion B of the user's body can be absorbed within the portion B (e.g., blood vessels, bones, and cellular tissue). Another portion of the light transmitted to the portion B of the user's body may not be absorbed within the portion B, but may be reflected from the portion B. At least a portion of the light reflected from the interior or exterior of the portion B of the user's body can sequentially pass through the window 430 and the internal space 411 to be received by a first receiving unit 442. The first receiving unit 442 can obtain first biometric data by generating an electrical signal based on the intensity or other characteristics of the received light. The electrical signal generated by the first receiving unit 442 can be processed by a processor (e.g., a printed circuit board 420). Figure 1 The processor 120 receives the data.

[0113] According to an embodiment, the second light emitting unit 451 can emit light with a second beam angle θ2 smaller than the first beam angle θ1 toward part B of the user's body. The light emitted from the second light emitting unit 451 can sequentially pass through the refractive index layer 460 and the window 430, and can be transmitted to part B of the user's body. A portion of the light transmitted to part B of the user's body can reach a specific substance (e.g., glucose molecules or alcohol molecules) within part B of the user's body. The wavelength of the light reaching the specific substance can be altered by the natural vibrations of the specific substance (e.g., Raman scattering), or the intensity of the light reaching the specific substance can be altered by absorption by the specific substance. The second receiving unit 452 can receive the light with the altered wavelength or altered intensity from part B of the user's body through the window 430 and the refractive index layer 460. The second receiving unit 452 can obtain second biometric data by generating an electrical signal based on the intensity or wavelength of the received light. The electrical signal generated by the second receiving unit 452 can be received by the processor 120 via the printed circuit board 420.

[0114] As described above, since the PPG sensor 440 is disposed on the printed circuit board 420 surrounding the laser sensor 450, the electronic device 400 according to the embodiment can arrange the PPG sensor 440 and the laser sensor 450 with different optical properties within a limited space. The electronic device 400 can provide the user with various biometric information by obtaining different first biometric data and second biometric data from the PPG sensor 440 and the laser sensor 450 respectively.

[0115] Figure 7a This is a cross-sectional view showing a cross section of an electronic device according to an embodiment. Figure 7bThis is a plan view of the second surface of the electronic device according to an embodiment.

[0116] In addition to the addition of the blocking component 470, Figure 7a and / or Figure 7b The electronic device 400 can be similar to the previously combined Figure 6 The electronic device 400 is described, therefore its repeated description will be omitted.

[0117] refer to Figure 7a and Figure 7b The electronic device 400 may further include a blocking member 470. The blocking member 470 prevents crosstalk between light emitted from the second light emitting unit 451 and light received by the second receiving unit 452. The blocking member 470 prevents noise in the laser sensor 450 by preventing crosstalk between the second light emitting unit 451 and the second receiving unit 452. According to an embodiment, the blocking member 470 protects the laser sensor 450 from forces applied externally to the electronic device 400. For example, the blocking member 470 may be made of a substantially opaque material to prevent light transmission, but is not limited thereto.

[0118] According to an embodiment, when viewed from the outside of the electronic device 400, the blocking member 470 can be disposed on the laser sensor 450 so as to be positioned between the area overlapping with the second light emitting part 451 and the area overlapping with the second receiving part 452. For example, the blocking member 470 can be positioned separately from the second light emitting part 451 and the second receiving part 452.

[0119] According to an embodiment, the blocking member 470 may be located between the window 430 and the laser sensor 450. For example, the blocking member 470 may be inserted into the refractive index layer 460 such that the refractive index layer 460 extends between a surface 430a of the window 430 and a surface of the laser sensor 450 facing each other.

[0120] According to the above embodiment, the electronic device 400 can improve the performance (e.g., signal-to-noise ratio (SNR)) of the laser sensor 450 by including a blocking member 470 that prevents optical crosstalk between the second light emitting part 451 and the second receiving part 452. According to the embodiment, by inserting the blocking member 470 between the window 430 and the laser sensor 450, the electronic device 400 can prevent the laser sensor 450 from being damaged by forces applied from outside the electronic device 400.

[0121] Figure 8 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0122] Apart from the change in the arrangement of the blocking component 470, Figure 8 The electronic device 400 can be similar to the previously combined Figure 7aand Figure 7b The electronic device 400 is described, therefore its repeated description will be omitted.

[0123] refer to Figure 8 According to the embodiment, the blocking member 470 of the electronic device 400 can surround the outer surface of the refractive index layer 460. Since the blocking member 470 surrounds the outer surface of the refractive index layer 460, light emitted from the second light emitting unit 451 or light incident on the second receiving unit 452 can be prevented from being emitted to the outer surface of the refractive index layer 460. Because the light is blocked and cannot be transmitted to the outer surface of the refractive index layer 460, the performance of the laser sensor 450 can be improved.

[0124] According to the above embodiments, the electronic device 400 can improve the performance of the laser sensor 450 by including a blocking member 470 for preventing optical crosstalk between the second light emitting unit 451 and the second receiving unit 452. In the electronic device 400 according to the embodiments, since the blocking member 470 surrounds the outer surface of the refractive index layer 460, light is blocked and cannot be transmitted to the outer surface of the refractive index layer 460, thereby improving the performance of the laser sensor 450.

[0125] Figure 9 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0126] refer to Figure 9 The electronic device 900 may include a housing 910, a printed circuit board 920, a window 930, a PPG sensor 940, a laser sensor 950, a refractive index layer 960, and a barrier 970. Figure 9 The housing 910, printed circuit board 920, window 930, PPG sensor 940, laser sensor 950, refractive index layer 960, and barrier 970 can be combined with Figure 4 The housing 410, printed circuit board 420, window 430, PPG sensor 440, laser sensor 450, refractive index layer 460 and barrier 470 are substantially the same, and their repeated descriptions will be omitted.

[0127] According to an embodiment, window 930 may include a receiving recess 935. The receiving recess 935 may receive the refractive index layer 960 and the blocking member 970 to secure their position within the electronic device 900. According to an embodiment, the receiving recess 935 may be formed by recessing a region of window 930 facing the laser sensor 950 toward the outside of the electronic device 900. According to an embodiment, when window 930 is viewed from the outside of the electronic device 900, the receiving recess 935 may overlap with the laser sensor 950.

[0128] According to an embodiment, the refractive index layer 960 can be inserted into the receiving recess 935. For example, the refractive index layer 960 can extend from a surface of the laser sensor 950 facing the receiving recess 935 into the receiving recess 935. When the refractive index layer 960 is disposed in the receiving recess 935, the receiving recess 935 can prevent the refractive index layer 960 from separating from its designed position.

[0129] According to an embodiment, the blocking member 970 can be inserted into the receiving recess 935 and the refractive index layer 960. For example, the blocking member 970 can extend from a surface of the laser sensor 950 facing the receiving recess 935 into the receiving recess 935. When the blocking member 970 is positioned in the receiving recess 935, the receiving recess 935 can prevent the blocking member 970 from separating from its designed position.

[0130] According to the above embodiment, when the refractive index layer 960 and the blocking member 970 are disposed in the receiving recess 935 formed in the window, the electronic device 900 can prevent the refractive index layer 960 and the blocking member 970 from separating from their designed positions.

[0131] Figure 10 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0132] refer to Figure 10 The electronic device 1000 may include a housing 1010, a printed circuit board 1020, a window 1030, a PPG sensor 1040, a laser sensor 1050, a refractive index layer 1060, and a barrier 1070. Figure 10 The housing 1010, printed circuit board 1020, window 1030, PPG sensor 1040, laser sensor 1050, refractive index layer 1060, and barrier 1070 can be combined with Figure 4 The housing 410, printed circuit board 420, window 430, PPG sensor 440, laser sensor 450, refractive index layer 460 and barrier 470 are substantially the same, and their repeated descriptions will be omitted.

[0133] According to an embodiment, window 1030 may include a through-hole 1036. The through-hole 1036 may connect the interior space 1011 of housing 1010 to the exterior of electronic device 1000. For example, the through-hole 1036 may extend from a surface 1030a of window 1030 facing laser sensor 1050 to the exterior of electronic device 1000.

[0134] According to an embodiment, the refractive index layer 1060 can be inserted into the through-hole 1036. For example, one surface of the refractive index layer 1060 can contact one surface of the laser sensor 450 facing the window 1030, and the other surface of the refractive index layer 1060 can be exposed to the outside of the electronic device 1000. The other surface of the refractive index layer 1060 exposed to the outside of the electronic device 1000 can form part of the second surface 1010b of the housing 1010. When the electronic device 1000 is worn by a user, the other surface of the refractive index layer 1060 exposed to the outside of the electronic device 1000 can contact a part of the user's body. Since the refractive index layer 1060 is exposed to the outside of the electronic device 1000 from the laser sensor 1050, there may be no refractive index difference in the optical path between the laser sensor 1050 and the second surface 1010b. Since the refractive index difference is eliminated, the light emitted from the second light emitting unit 1051 can be transmitted to the outside of the electronic device 1000 without loss, or the light reflected from the user's body can be transmitted to the second receiving unit 1052 without loss.

[0135] According to an embodiment, the blocking member 1070 can be inserted into the through-hole 1036 and the refractive index layer 1060. For example, one surface of the blocking member 1070 can contact one surface of the laser sensor 1050 facing the window 1030, and the other surface of the blocking member 1070 can be visually exposed to the outside of the electronic device 1000.

[0136] According to the above embodiment, since the refractive index layer 1060 connects the laser sensor 1050 to the outside of the electronic device 1000, there can be no refractive index difference in the optical path between the laser sensor 1050 and the second surface 1010b. Because the refractive index difference is eliminated, light is transmitted from the second light emitting unit 1051 to the user's body without excessive loss, interference, or noise, or light is received from the user's body to the second receiving unit 1052 without excessive loss, interference, or noise, thereby ensuring the performance of the laser sensor 1050.

[0137] Figure 11 This is a cross-sectional view showing a cross section of an electronic device according to an embodiment.

[0138] The electronic device 1100 may include a housing 1110, a printed circuit board 1120, a window 1130, a PPG sensor 1140, a laser sensor 1150, a refractive index layer 1160, a barrier 1170, and a buffer member 1180. Figure 11 The housing 1110, printed circuit board 1120, window 1130, PPG sensor 1140, laser sensor 1150, refractive index layer 1160, and barrier 1170 can be connected with Figure 4The housing 410, printed circuit board 420, window 430, PPG sensor 440, laser sensor 450, refractive index layer 460 and barrier 470 are substantially the same, and their repeated descriptions will be omitted.

[0139] According to an embodiment, window 1130 may include a receiving recess 1135. According to an embodiment, the receiving recess 1135 may be formed by recessing a portion of window 1130 facing laser sensor 1150. According to an embodiment, when window 1130 is viewed from outside electronic device 1100, the receiving recess 1135 may overlap with laser sensor 1150.

[0140] According to an embodiment, the refractive index layer 1160 can be inserted into the receiving recess 1135. When the refractive index layer 1160 is positioned in the receiving recess 1135, the receiving recess 1135 prevents the refractive index layer 1160 from separating from its designed location. According to an embodiment, the refractive index layer 1160 can be spaced apart from the laser sensor 1150. For example, the refractive index layer 1160 can be spaced apart from the laser sensor 1150 in a direction from the printed circuit board 1120 toward the window 1130. Because the refractive index layer 1160 and the laser sensor 1150 are spaced apart from each other, an air gap 1112 can be formed between the refractive index layer 1160 and the laser sensor 1150.

[0141] According to an embodiment, the blocking member 1170 can extend from the printed circuit board 1120 to the window 1130. For example, the blocking member 1170 can be inserted into the refractive index layer 1160, with one end contacting the printed circuit board 1120 and the other end disposed within the receiving recess 1135. According to an embodiment, the blocking member 1170 can extend between the second light emitting portion 1151 and the second receiving portion 1152 to prevent crosstalk between light emitted from the second light emitting portion 1151 and light received by the second receiving portion 1152. According to an embodiment, the blocking member 1170 can surround the outer surfaces of the second light emitting portion 1151 and the second receiving portion 1152 and can extend to the receiving recess 1135. Since the blocking member 1170 surrounds the outer surfaces of the second light emitting portion 1151 and the second receiving portion 1152, light emitted from the second light emitting portion 1151 or light advancing to the second receiving portion 1152 can be prevented from being transmitted to the internal space 1111. By preventing light from being transmitted into the internal space 1111, the performance of the laser sensor 1150 can be improved.

[0142] exist Figure 11In the illustration, a barrier 1170 is shown positioned adjacent to the laser sensor 1150 to ensure the performance of the laser sensor 1150, but this is merely an example. In embodiments, a barrier 1170 may be added positioned adjacent to the PPG sensor 1140. For example, the barrier 1170 may extend from the printed circuit board 1120 to the window 1130 to surround the outer surfaces of the first light emitting portion 1141 and the first receiving portion 1142. Because the barrier 1170 is positioned adjacent to the PPG sensor 1140, the performance of the PPG sensor 1140 can be improved.

[0143] According to an embodiment, the buffer member 1180 can reduce friction between the window 1130 and the stop member 1170. The buffer member 1180 may be located between the window 1130 and the stop member 1170. For example, the buffer member 1180 may surround one end of the stop member 1170 positioned inside the receiving recess 1135. For example, the buffer member 1180 may be made of silicone foam, but is not limited thereto, and may also be made of an elastic material.

[0144] According to an embodiment, the refractive index layer 1160 may include a Fresnel pattern 1161. The Fresnel pattern 1161 can focus light. For example, the Fresnel pattern 1161 may have an aggregate shape of multiple concentric circles sharing a common center. According to an embodiment, the Fresnel pattern 1161 may be formed on one surface of the refractive index layer 1160 facing the laser sensor 1150. For example, the Fresnel pattern 1161 may be formed on one surface 1160a of the refractive index layer 1160 facing the second light emitting unit 1151 and another surface 1160b of the refractive index layer 1160 facing the second receiving unit 1152. Surfaces 1160a and 1160b of the refractive index layer 1160 on which the Fresnel pattern 1161 is formed may be referred to as Fresnel lenses. Light emitted from the second light emitting unit 1151 can be focused by the Fresnel pattern 1161 on one surface 1160a of the refractive index layer 1160 and transmitted to the window 1130. Light reaching the refractive index layer 1160 from window 1130 can be focused by the Fresnel pattern 1161 on the other surface 1160b of the refractive index layer 1160 and received by the second receiving part 1152.

[0145] According to the embodiments described above, since the refractive index layer 1160 includes a Fresnel pattern 1161, the electronic device 1100 can ensure the performance of the laser sensor 1150 by focusing the light emitted from the second light emitting unit 1151 or the light transmitted from outside the electronic device 1100 to the second receiving unit 1152 by the Fresnel pattern 1161.

[0146] According to an embodiment, an electronic device (e.g., Figure 4 The electronic device 400 may include: a housing (e.g., Figure 4Housing 410); Printed circuit board (e.g., Figure 4 Printed circuit board 420), which is disposed within the housing; window (e.g., Figure 4 Window 430), the window includes a first region parallel to the printed circuit board (e.g., Figure 4 The first region 432) and the second region (e.g., the portion of the body facing the user when the electronic device is worn by the user) connect the periphery of the first region and the housing. Figure 4 The first region 433); PPG (photovolume change mapping) sensor (e.g., Figure 4 A PPG sensor 440, which is mounted on a printed circuit board and includes at least one first emitter (e.g., Figure 4 The first light emitting part 441) and at least one first receiving part (e.g., Figure 4 The at least one first emitting unit is configured to emit light toward the window at a first beam angle, and the at least one first receiving unit is configured to receive light emitted from the at least one first emitting unit and reflected from a part of the user's body; a laser sensor (e.g., Figure 4 The laser sensor 450 includes at least one second emitting part (e.g., Figure 4 The second light emitting part 451) and at least one second receiving part (e.g., Figure 4 The at least one second receiving portion 452), the at least one second emitting portion being configured to emit light toward the window at a second beam angle smaller than the first beam angle, the at least one second receiving portion being configured to receive light emitted from the at least one second emitting portion and reflected from a part of the user's body; and a refractive index layer (e.g., Figure 4 A refractive index layer 460) is disposed on the laser sensor; wherein the laser sensor may be disposed on a printed circuit board in such a manner as to be surrounded by a PPG sensor and may overlap with the first region when viewed from an external viewing window of the electronic device.

[0147] According to an embodiment, the PPG sensor may be spaced apart from the laser sensor in the radial direction.

[0148] According to an embodiment, when viewed from the external window of the electronic device, the PPG sensor can overlap with the second region.

[0149] According to an embodiment, the refractive index layer may be positioned between the window and the laser sensor.

[0150] According to an embodiment, the window may also include a through hole (e.g., Figure 10 Through-hole 1036), which extends from a surface of the window facing the laser sensor (e.g., Figure 10One surface 1030a) extends to another surface of the window exposed to the outside of the electronic device, and wherein the refractive index layer is inserted into the through hole, and one surface of the refractive index layer is exposed to the outside of the electronic device.

[0151] According to an embodiment, the window may also include a receiving recess (e.g., Figure 9 The receiving recess 935 is defined by recessing a region of the window facing the laser sensor toward the outside of the electronic device, and a portion of the refractive index layer can be inserted into the receiving recess.

[0152] According to an embodiment, at least one first emitting part may include a plurality of first emitting parts spaced apart from each other along the periphery of the laser sensor, and at least one first receiving part may be disposed between the plurality of first emitting parts along the periphery of the laser sensor.

[0153] According to an embodiment, at least one first emitting part may surround the laser sensor from the outside of the laser sensor, and at least one first receiving part may surround the at least one first emitting part from the outside of the at least one first emitting part.

[0154] According to an embodiment, at least one first emitting unit may include a plurality of first emitting units, each of which emits light of a different wavelength, wherein at least one second emitting unit may include a plurality of second emitting units, each of which emits light of a different wavelength, and wherein the wavelength range of the light emitted by the plurality of second emitting units may be narrower than the wavelength range of the light emitted by the plurality of first emitting units.

[0155] According to embodiments, the electronic device may also include a blocking element (e.g., Figure 7a and 7b The blocking element 470 is disposed on the laser sensor and positioned between an area of ​​the window that overlaps with at least one second emitting part and another area of ​​the window that overlaps with at least one second receiving part when viewed from outside the electronic device.

[0156] According to an embodiment, the barrier can be configured to surround the outer surface of the refractive index layer.

[0157] According to an embodiment, the blocking member may be located between at least one second receiving part and at least one second transmitting part, and extends from the printed circuit board to the window.

[0158] According to an embodiment, the refractive index layer can be disposed between the barrier and the window, and spaced apart from the laser sensor, wherein a Fresnel pattern (e.g., Figure 11 A Fresnel pattern (1161) can be formed on a surface of the refractive index layer facing the laser sensor.

[0159] According to an embodiment, the electronic device further includes a buffer member (e.g., between the window and the blocking member) Figure 11 (Buffer component 1180).

[0160] According to an embodiment, an electronic device (e.g., Figure 4 The electronic device 400 may include: a housing (e.g., Figure 4 The housing 410 includes a first surface (e.g., Figure 2a The first surface 210A), and the second surface opposite the first surface (e.g., Figure 4 The second surface 410b) and the internal space formed between the first surface and the second surface (e.g., Figure 4 The internal space 411); printed circuit board (e.g., Figure 4 Printed circuit board 420), which is disposed in the internal space; window (e.g., Figure 4 Window 430), which forms at least a portion of the second surface of the housing and includes a first region (e.g., Figure 4 The first region 432) and the second region (e.g., Figure 4 The second region 433), which is parallel to the printed circuit board and configured to contact the user's body when the electronic device is worn by the user, has curvature and connects the periphery of the first region and the housing; a PPG (photovolume change mapping) sensor (e.g., Figure 4 A PPG sensor 440, which is mounted on a printed circuit board and includes at least one first emitter (e.g., Figure 4 The first light emitting part 441) and at least one first receiving part (e.g., Figure 4 The at least one first emitting unit is configured to emit light toward the window at a first beam angle, and the at least one first receiving unit is configured to receive light emitted from the at least one first emitting unit and reflected from a part of the user's body; a laser sensor (e.g., Figure 4 A laser sensor 450, comprising at least one second emitting portion and at least one second receiving portion, the at least one second emitting portion being configured to emit light toward a window at a second beam angle smaller than a first beam angle, and the at least one second receiving portion being configured to receive light emitted from the at least one second emitting portion and reflected from a part of the user's body; a refractive index layer (e.g., Figure 4 A refractive index layer 460), which is disposed on the laser sensor; and a blocking element (e.g., Figure 7a and Figure 7bA blocking element 470), which is disposed on the laser sensor to be positioned at the window relative to at least one second emitting portion (e.g., when viewed from outside the electronic device). Figure 4 The area and window of the second transmitting part 451 overlap with at least one second receiving part (e.g., Figure 4 The second receiving section 452) overlaps with another region; wherein the laser sensor can be arranged on the printed circuit board in such a way that it is surrounded by the PPG sensor, and can overlap with the first region when viewed from the external viewing window of the electronic device.

[0161] According to an embodiment, the PPG sensor may be spaced apart from the laser sensor in the radial direction.

[0162] According to an embodiment, when viewed from the external window of the electronic device, the PPG sensor can overlap with the second region.

[0163] According to an embodiment, at least one first emitting part may include a plurality of first emitting parts spaced apart from each other along the periphery of the laser sensor, and at least one first receiving part may be disposed between the plurality of first emitting parts along the periphery of the laser sensor.

[0164] According to an embodiment, at least one first emitting part may surround the laser sensor from the outside of the laser sensor, and at least one first receiving part may surround the at least one first emitting part from the outside of the at least one first emitting part.

[0165] According to an embodiment, at least one first emitting unit may include a plurality of first emitting units, each of which emits light of a different wavelength, wherein at least one second emitting unit may include a plurality of second emitting units, each of which emits light of a different wavelength, and wherein the wavelength range of the light emitted by the plurality of second emitting units may be narrower than the wavelength range of the light emitted by the plurality of first emitting units.

[0166] The electronic device according to certain embodiments may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. According to embodiments of this disclosure, the electronic device is not limited to those described above.

[0167] It should be understood that the various embodiments of this disclosure and the terminology used therein are not intended to limit the technical features set forth herein to particular embodiments, but rather to include various modifications, equivalents, or substitutions of the corresponding embodiments. Regarding the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It should be understood that the singular form of a noun corresponding to an item may include one or more things, unless the relevant context clearly indicates otherwise. As used herein, each of phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” may include any one or all possible combinations of the items enumerated together with the corresponding phrase in a plurality of phrases. As used herein, terms such as “first” and “second” or “first” and “second” may be used to simply distinguish one component from another and do not limit the components in other respects (e.g., importance or order). It should be understood that, whether the terms “operably” or “communically” are used or not, if an element (e.g., a first element) is referred to as “connected to another element (e.g., a second element),” “linked to another element (e.g., a second element),” “connected to another element (e.g., a second element),” or “attached to another element (e.g., a second element)”, it means that the element can be directly (e.g., wiredly) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0168] As used in conjunction with various embodiments of this disclosure, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms such as "logic," "logic block," "part," or "circuit system." A module may be a single integrated component adapted to perform one or more functions, or its smallest unit or a portion thereof. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0169] The various embodiments described herein can be implemented as software (e.g., program 140) comprising one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) readable by a machine (e.g., electronic device 101). For example, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) can invoke at least one of the instructions stored in the storage medium and run it under the control of the processor with or without one or more other components. This allows the machine to be operated to perform at least one function according to the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. The term "non-transitory" simply means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but this term does not distinguish between cases where data is stored semi-permanently in the storage medium and cases where data is temporarily stored in the storage medium.

[0170] According to embodiments, methods according to various embodiments of this disclosure can be included and provided in a computer program product. The computer program product can be traded as a product between a seller and a buyer. The computer program product can be distributed in the form of a machine-readable storage medium (e.g., an optical disc read-only memory (CD-ROM)) or via an app store (e.g., the Play Store). TM The computer program product may be distributed online (e.g., downloaded or uploaded) or directly between two user devices (e.g., smartphones). If distributed online, at least a portion of the computer program product may be temporarily generated or at least temporarily stored in a machine-readable storage medium (such as the memory of a manufacturer's server, an app store's server, or a relay server).

[0171] According to various embodiments, each of the above-described components (e.g., a module or program) may include a single entity or multiple entities, and some of the multiple entities may be separately disposed in different components. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each of the multiple components in the same or similar manner as the corresponding component of the multiple components performed one or more functions before integration. According to various embodiments, the operations performed by a module, program, or other component may be performed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be run in a different order or omitted, or one or more other operations may be added.

Claims

1. An electronic device, the electronic device comprising: case; A printed circuit board, wherein the printed circuit board is disposed within the housing; A window, the window comprising a first region and a second region, the first region being parallel to the printed circuit board, and the second region connecting the periphery of the first region and the housing and facing a portion of the user's body when the electronic device is worn by the user; A photoplethysmography (PPG) sensor is disposed on the printed circuit board and includes at least one first emitting part and at least one first receiving part. The at least one first emitting part is configured to emit light toward the window at a first beam angle, and the at least one first receiving part is configured to receive light emitted from the at least one first emitting part and reflected from the part of the user's body. A laser sensor, the laser sensor including at least one second emitting part and at least one second receiving part, the at least one second emitting part being configured to emit light toward the window at a second beam angle smaller than the first beam angle, and the at least one second receiving part being configured to receive light emitted from the at least one second emitting part and reflected from the part of the user's body; as well as A refractive index layer is disposed on the laser sensor; The laser sensor is positioned on the printed circuit board in a manner that surrounds the PPG sensor, and overlaps with the first area when the window is viewed from outside the electronic device.

2. The electronic device according to claim 1, wherein, The PPG sensor is spaced apart from the laser sensor in the radial direction of the laser sensor.

3. The electronic device according to claim 1, wherein, When the window is viewed from outside the electronic device, the PPG sensor overlaps with the second region.

4. The electronic device according to claim 1, wherein, The refractive index layer is located between the window and the laser sensor.

5. The electronic device according to claim 1, wherein, The window also includes a through-hole extending from one surface of the window facing the laser sensor to another surface of the window exposed to the outside of the electronic device. The refractive index layer is inserted into the through-hole, and one surface of the refractive index layer is exposed to the outside of the electronic device.

6. The electronic device according to claim 1, wherein, The window also includes a receiving recess defined by recessing a portion of the window facing the laser sensor toward the exterior of the electronic device. A portion of the refractive index layer is inserted into the receiving recess.

7. The electronic device according to claim 1, wherein, The at least one first emitting part includes a plurality of first emitting parts spaced apart from each other along the periphery of the laser sensor, and The at least one first receiving unit is disposed between the plurality of first transmitting units along the periphery of the laser sensor.

8. The electronic device according to claim 1, wherein, The at least one first emitting part surrounds the laser sensor from the outside of the laser sensor, and The at least one first receiving part surrounds the at least one first transmitting part from the outside of the at least one first transmitting part.

9. The electronic device according to claim 1, wherein, The at least one first emitting unit includes a plurality of first emitting units, each of which emits light of a different wavelength. The at least one second emitting unit includes a plurality of second emitting units, each of which emits light of a different wavelength. The wavelength range of the light emitted by the plurality of second emitting units is narrower than the wavelength range of the light emitted by the plurality of first emitting units.

10. The electronic device of claim 1, further comprising a blocking member disposed on the laser sensor and positioned between an area of ​​the window overlapping the at least one second emitting portion and another area of ​​the window overlapping the at least one second receiving portion when viewed from outside the electronic device.

11. The electronic device according to claim 10, wherein, The barrier is configured to surround the outer surface of the refractive index layer.

12. The electronic device according to claim 10, wherein, The blocking member is located between the at least one second receiving portion and the at least one second transmitting portion, and extends from the printed circuit board to the window.

13. The electronic device according to claim 10, wherein, The refractive index layer is disposed between the barrier and the window, and spaced apart from the laser sensor. A Fresnel pattern is formed on one surface of the refractive index layer facing the laser sensor.

14. The electronic device of claim 10, further comprising a buffer member disposed between the window and the blocking member.

15. An electronic device, the electronic device comprising: A housing, the housing including a first surface, a second surface opposite to the first surface, and an internal space formed between the first surface and the second surface; A printed circuit board disposed in the internal space; A window, the window forming at least a portion of the second surface of the housing, and including a first region and a second region, the first region being parallel to the printed circuit board and configured to contact a portion of the user's body when the electronic device is worn by the user, the second region having curvature and connecting the periphery of the first region and the housing; A photoplethysmography (PPG) sensor is disposed on the printed circuit board and includes at least one first emitting part and at least one first receiving part. The at least one first emitting part is configured to emit light toward the window at a first beam angle, and the at least one first receiving part is configured to receive light emitted from the at least one first emitting part and reflected from the part of the user's body. A laser sensor, the laser sensor including at least one second emitting part and at least one second receiving part, the at least one second emitting part being configured to emit light toward the window at a second beam angle smaller than the first beam angle, and the at least one second receiving part being configured to receive light emitted from the at least one second emitting part and reflected from the part of the user's body; A refractive index layer is disposed on the laser sensor; as well as A blocking element is disposed on the laser sensor and positioned between an area of ​​the window overlapping the at least one second emitting portion and another area of ​​the window overlapping the at least one second receiving portion when viewed from outside the electronic device. The laser sensor is positioned on the printed circuit board in a manner that surrounds the PPG sensor, and overlaps with the first area when the window is viewed from outside the electronic device.

Images