Electronic device having sensor and information acquisition method using same

Abstract

An electronic device is provided. The electronic device comprises: a housing including a first surface, a second surface opposite to the first surface, and a third surface substantially surrounding the space between the first surface and the second surface and forming a side surface of a wearable device; a display accommodated in the housing so as to be visible through the first surface; a printed circuit board disposed between the display and the second surface; and one or more biometric sensors disposed on the printed circuit board so as to face the second surface and including a plurality of light-emitting elements and a plurality of light-receiving elements. The plurality of light-emitting elements include: a first light-emitting element disposed in a peripheral area of the printed circuit board and configured to emit first light of a first specified band; and a second light-emitting element disposed in a central area of the printed circuit board and configured to emit second light of a second specified band at least partially different from the first specified band. The plurality of light-receiving elements include a first light-receiving element and a second light-receiving element that receive light emitted from the first light-emitting element and the second light-emitting element and reflected by a part of a user's body. The first light-emitting element is disposed in a peripheral area adjacent to each of the first light-receiving element and the second light-receiving element.

Description

Electronic device equipped with a sensor and method for obtaining information using the same

[0001] The present disclosure relates to an electronic device having a sensor and a method for obtaining information using the same.

[0002] With the advancement of digital technology, various types of electronic devices, such as mobile terminals, personal digital assistants (PDAs), electronic notebooks, smartphones, tablet PCs (personal computers), and wearable electronic devices, are becoming widely used. These electronic devices are constantly undergoing improvements in their hardware and / or software to support and enhance their functionality.

[0003] Recent wearable electronic devices are equipped with optical sensors that can be used to obtain biometric information by measuring various biosignals such as heart rate, blood oxygen saturation (SpO2), or advanced glycation end products.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0005] Examples of the present disclosure may address the aforementioned problems and / or shortcomings and provide the advantages described below. Examples of the present disclosure relate to a biosignal measurement technology utilizing an optical sensor, and may provide, for example, a method for more accurately measuring advanced glycation end products (AGEs) among biosignals.

[0006] Additional examples will be described in part in the description below, or will become apparent from the description or may be learned from the examples presented.

[0007] A wearable device according to one embodiment may be provided. The wearable device may include a housing including a first surface, a second surface opposite the first surface, and a third surface substantially surrounding the first surface and forming a side surface of the wearable device, a display accommodated in the housing so as to be visible through the first surface, a printed circuit board disposed between the display and the second surface, and one or more biosensors disposed on the printed circuit board opposite the second surface and including a plurality of light-emitting elements and a plurality of light-receiving elements. The plurality of light-emitting elements may include a first light-emitting element disposed in a peripheral region of the printed circuit board and configured to emit a first light in a first specified band, and a second light-emitting element disposed in a central region of the printed circuit board and configured to emit a second light in a second specified band that is at least partially different from the first specified band. The plurality of light-receiving elements may include a first light-receiving element and a second light-receiving element that receive light emitted from the first light-emitting element and the second light-emitting element and reflected by a part of the user's body. The first light-emitting element may be disposed in the peripheral area adjacent to each of the first light-receiving element and the second light-receiving element.

[0008] An electronic device according to one embodiment may be provided. The electronic device may include a housing having a transparent cover that contacts a body of a user of the electronic device, a plurality of light-emitting elements including a first light-emitting element that emits ultra-violet (UV) light through the transparent cover, and a second light-emitting element that is separated from the first light-emitting element by a partition wall and emits at least one of visible light and infrared (IR) light through the transparent cover, a plurality of light-receiving elements including a first light-receiving element and a second light-receiving element that detect UV unfiltered light and UV filtered light respectively emitted from the plurality of light-emitting elements and reflected by a part of the body of the user, a memory storing one or more computer programs, and one or more processors communicatively connected to the memory. The one or more computer programs may include computer-executable instructions. The instructions, when individually or collectively executed by the one or more processors, may cause the electronic device to obtain first biometric information related to the user based on the UV unfiltered light and the UV filtered light corresponding to the UV light emitted by the first light-emitting element, and to obtain second biometric information based on the UV unfiltered light and / or the UV filtered light corresponding to at least one of the visible light or IR light emitted by the second light-emitting element.

[0009] Other aspects, advantages and important features of the disclosure will become apparent to those skilled in the art from the following detailed description of various embodiments taken in conjunction with the accompanying drawings.

[0010] The above and other aspects, features, and advantages of specific embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0011] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0012] FIG. 2 is a perspective view of a plan or cross-section of a wearable electronic device, according to one embodiment.

[0013] FIG. 3 is a drawing for explaining an optical sensor of an electronic device according to one embodiment.

[0014] FIG. 4 is a drawing for explaining an optical sensor of an electronic device according to one embodiment.

[0015] FIG. 5 is a drawing for explaining an optical sensor of an electronic device according to one embodiment.

[0016] FIG. 6 is a drawing for explaining an optical sensor of an electronic device according to one embodiment.

[0017] FIG. 7A, FIG. 7B, and FIG. 8 are drawings for explaining the operation of an optical sensor of an electronic device according to one embodiment of the present disclosure.

[0018] FIGS. 9, 10A, and 10B are diagrams illustrating the operation of an optical sensor of an electronic device according to one embodiment.

[0019] FIG. 11 is a drawing for explaining an operation of displaying a value measured by an optical sensor of an electronic device according to one embodiment.

[0020] FIG. 12 is a flowchart for explaining a measurement operation by an optical sensor of an electronic device according to one embodiment.

[0021] In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

[0022] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

[0023] The terms and words used in the following description and claims are not limited to their bibliographic meanings, but may be used solely to ensure a clear and consistent understanding of the disclosure by the inventors. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustrative purposes only and is not intended to limit the disclosure, which is defined by the appended claims and their equivalents.

[0024] The singular form may include the plural unless the context clearly dictates otherwise. Thus, for example, a composition for "a component surface" may include a composition for one or more of such surfaces.

[0025] Each block of the flowchart and the combination of flowcharts can be performed by one or more computer programs containing instructions. The entirety of one or more computer programs may be stored in a single memory device, or the one or more computer programs may be stored in multiple different memory devices.

[0026] Any of the functions or operations in this document may be processed by a single processor or a combination of processors. A single processor or a combination of processors is a circuit that performs processing, and may include an application processor (AP, e.g., a central processing unit (CPU)), a communications processor (CP, e.g., a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a Wi-Fi chip, or a Bluetooth chip. TM It may include a chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, a connection chip, a sensor controller, a touch controller, a fingerprint sensor controller, a display driver integrated circuit (IC), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on a chip (SoC), an IC, or similar circuits.

[0027] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100), according to various examples.

[0028] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). In one example, the electronic device (101) may communicate with the electronic device (104) via the server (108). In one example, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some examples, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some examples, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0029] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. In one example, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store resultant data in a non-volatile memory (134). In one example, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor)) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0030] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one example, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one example, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0031] The memory (130) can store various data used by at least one component (e.g., the processor (120) or the sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., the program (140)) and input data or output data for commands related thereto. The memory (130) can include a volatile memory (132) or a non-volatile memory (134). The non-volatile memory (134) can include at least one internal memory (136) and an external memory (138).

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

[0033] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0034] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one example, the receiver can be implemented separately from the speaker or as part of the speaker.

[0035] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling the device. In one example, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0036] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. In one example, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0037] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one example, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0038] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) to an external electronic device (e.g., the electronic device (102)). In one example, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0039] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). In one example, the connection terminal (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] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one example, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0041] The camera module (180) can capture still images and videos. In one example, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

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

[0043] A battery (189) may power at least one component of the electronic device (101). In one example, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0044] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. In one example, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0045] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to an example, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0046] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one example, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one example, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In some examples, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0047] According to various examples, the antenna module (197) may form a mmWave antenna module. According to one example, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0048] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0049] In one example, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). In one example, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one example, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. In one example, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0050] FIG. 2 is a perspective view of a plan or cross-section of a wearable electronic device (e.g., electronic device (101) of FIG. 1), according to one embodiment.

[0051] Referring to FIG. 2, a housing (200) of an electronic device (101) (e.g., a wearable electronic device, a wearable watch) according to one embodiment can be detachably worn on a part of a user's body (e.g., a wrist or ankle).

[0052] According to one embodiment, the housing (200) may include a first side (e.g., front side) (210) on which a display is arranged, a second side (e.g., back side) (220) that contacts at least a portion of the body when worn, and a third side (e.g., side) arranged to surround a space between the front side (210) and the back side (220). The shape of the housing (200) may be implemented in various shapes such as a circle, an oval, a square, a rounded square. The first side (210) of the housing (200) may be formed by a front plate (e.g., a glass plate including various coating layers, or a polymer plate) that is at least partially substantially transparent. The second side (220) may be formed by a back plate and may be formed by, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), titanium, or magnesium), or a combination of at least two of the foregoing materials. At least a portion of the back plate may include a transparent cover, and light emitted from the biometric sensor (230) may be emitted to the outside of the electronic device through the transparent cover. The side surface (230) may be formed by a side bezel structure that may be coupled to the front plate and the back plate and may include a metal and / or a polymer. The back plate and the side bezel structure may be formed integrally and may include the same material (e.g., a metal material such as aluminum). The exterior of the housing (200) may be composed of various materials that can withstand external impacts and scratches and implement design features, such as titanium, stainless steel, aluminum, and ceramic.

[0053] According to one embodiment, the housing (200) may include input devices on the side, which may be configured in the form of physical buttons and / or a crown for operating the electronic device (101), and may be implemented to detect and operate various gesture actions such as pressure, touch, proximity, or turning. In addition, the physical buttons and / or crown may be replaced or added to include sensors capable of detecting touch, pressure, or gestures on the side of the housing to detect input actions.

[0054] In one embodiment, the button may be made of a metal capable of transmitting electrical signals, and thus the button may also be implemented as an interface to the electrode sensors (203, 204).

[0055] According to one embodiment, a biometric sensor (230) may be disposed on a printed circuit board facing the second surface (220) of the housing (200). The biometric sensor (230) may include an optical sensor that irradiates light onto a living body and receives the light absorbed, scattered, and / or reflected. The light emitting portion of the optical sensor may include a plurality of light emitting elements to emit light of various bands, and may be composed of elements such as a light emitting diode (LED), a laser, and a vertical cavity surface emitting laser (VCSEL). The band of the light emitted by the light emitting portion may be composed of various wavelengths such as green, red, infrared (IR), blue, yellow, and ultraviolet (UV). Hereinafter, the biometric sensor may be referred to as a biometric sensor or an optical sensor.

[0056] The light receiving unit (receiver) of the biosensor (230) may include a plurality of light receiving elements, and may receive light reflected or transmitted from the light emitting unit and store the converted value through an analog to digital converter (ADC) in a memory or sensor buffer. The light receiving unit may include a photodiode (PD) and / or a complementary metal oxide semiconductor (CMOS) image sensor. The light receiving unit may include a filter, and thus may receive light of a specific band or filter out light outside of a specific band.

[0057] The biometric sensor (230) may include a sensor control unit. The sensor control unit may be implemented as an IC and / or an analog front-end (AFE), and may control the light emitting unit and the light receiving unit of the optical sensor (230), process the received data, and transmit the processed data to the processor or store it in the memory. Meanwhile, in addition to the optical sensor, the biometric sensor (230) may include an acoustic sensor that emits sound waves instead of light to the living body and detects the target. The biometric sensor may be implemented as a combination of various sensors, such as an optical sensor that emits light and receives the transmitted, absorbed, scattered, and / or reflected light, and / or an acoustic sensor that emits sound waves and receives the reflected sound waves, and / or an image sensor that senses an image.

[0058] The biosensor (230) may include an optical sensor (e.g., a PPG sensor) that detects pulse waves with light, and may measure bioinformation such as heart rate (HR), heart rate variability (HRV), blood oxygen saturation (SpO2), and blood pressure. The biosensor (230) may include a biomarker sensor that detects a specific substance or component in the body. A biomarker is an indicator that can indicate changes in the body, such as cells, blood vessels, proteins, deoxyribonucleic acid (DNA), ribonucleic acid (RNA), and metabolites in the body, and may detect information related to blood sugar, alcohol, advanced glycation end-products (AGEs), and antioxidants.

[0059] AGEs are sugar-linked fats or proteins. These substances are known to be associated with aging and can worsen the progression of degenerative diseases such as diabetes, arteriosclerosis, chronic renal failure, and Alzheimer's disease. According to one embodiment, by measuring AGEs using an optical sensor (230), the user's current level of production or accumulation of aging-related substances can be identified and information can be provided to prevent such aging. Accordingly, various solutions can be provided to help users lead healthy lives.

[0060] In one embodiment, AGEs sensing, which measures advanced glycation end products (AGEs) in the skin, can be applied to various electronic devices that allow the sensor to contact the skin. For example, it can be applied to various electronic devices such as wristwatches, bendable devices, band-type devices, or attachable devices worn on the body to perform continuous monitoring.

[0061] Hereinafter, wearable electronic devices are mainly described in the embodiments, but in addition to wearable electronic devices, optical sensors according to various embodiments may be mounted on various electronic devices such as the back of a smartphone or tablet, a sensing-only device, or a smartphone cover device, and implemented to measure, for example, by placing a palm on them.

[0062] According to one embodiment, the optical sensor (230) may be positioned facing a second side (220) (e.g., the back side that contacts the user's body) of the housing (e.g., the housing (200) of FIG. 2).

[0063] The emitter of the optical sensor (230) can emit light of various bands. For example, the emitter can be composed of elements such as an LED, a laser, or a VCSEL.

[0064] According to one embodiment, the electronic device (101) may include a temperature sensor, for example, within the second surface (220). The temperature sensor, which measures the temperature of a living body or a component, may be implemented in a contact or non-contact manner, depending on the method. The temperature value measured by the temperature sensor may be stored in memory or transmitted to a processor and used to estimate skin temperature, or utilized for situational awareness and / or body temperature estimation.

[0065] According to one embodiment, the electronic device (101) may include an electrode sensor including a first electrode (201), a second electrode (202), a third electrode (203), and / or a fourth electrode (204). The electrode sensor may be implemented as a sensor having electrodes that detect characteristics of a living body through contact with the living body. The electrodes are interfaces for measuring electrical characteristics (voltage, current, impedance) through the user's body, and can detect various physical characteristics by forming an equivalent circuit through the body.

[0066] The electronic device (101) can measure the biological state by detecting electric signals generated from physical activities, such as an electrocardiogram (ECG), an electromyogram (EMG), and / or an electroencephalogram (EEG), through electrode sensors. For example, the electronic device (101) can measure electric signals generated from the heart by utilizing INP electrodes (e.g., the first electrode (201) and the second electrode (202)) (wrist) and INM electrodes (e.g., the third electrode (203) and the fourth electrode (204)) (fingers of the opposite hand) for ECG measurement. In this case, the accuracy of the biological signal measurement can be improved by aligning the potential reference of the biological signal by grounding the RLD electrode.

[0067] The electronic device (101) can measure body composition through body impedance analysis (BIA) using four electrodes. Body composition may include information such as body fat, body water, and musculoskeletal mass. The electronic device (101) can measure skin electrodermal activity (EDA) using two electrodes. EDA may include all measurements related to skin electrical responses, such as skin conductance, galvanic skin response (GSR), electrodermal response (EDR), and psychogalvanic reflex (PRG).

[0068] The electronic device (101) can measure various bio-indicators and generate bio-related data based on a sensor circuit that is connected to the body through an electrode interface.

[0069] FIGS. 3 and 4 are drawings for explaining an optical sensor (e.g., an optical sensor (230) of FIG. 2) of an electronic device (e.g., an electronic device (101) of FIG. 1 or FIG. 2) according to various embodiments.

[0070] Referring to FIGS. 3 and 4, the optical sensor (230) may include a light-emitting unit including a plurality of light-emitting elements and a light-receiving unit including a plurality of light-receiving elements.

[0071] The optical sensor (230) may include a plurality of light-emitting elements that emit light of various wavelengths, such as green, red, infrared (IR), blue, violet, yellow, and ultraviolet (UV).

[0072] According to one embodiment, the light emitting elements (301, 302, 303 and / or 304) emitting light of the first band (e.g., UV wavelength) may be disposed in a peripheral area of ​​a printed circuit board of the optical sensor (230). The light emitting elements (301, 302, 303 and / or 304) emitting light of the first band (e.g., UV wavelength) may be disposed at positions symmetrical to each other, respectively. For example, the light emitting elements (301, 302, 303 and / or 304) emitting light of the first band (e.g., UV wavelength) may be disposed in areas corresponding to positions in a direction of about 0 degrees (12 o'clock position), about 90 degrees (3 o'clock position), about 180 degrees (6 o'clock position), or about 270 degrees (9 o'clock position) respectively along the peripheral area with respect to the second surface of the housing, the printed circuit board, or the center of the optical sensor (230).

[0073] According to one embodiment, the light emitting elements (301, 302, 303 and / or 304) that emit light in a first band (e.g., UV wavelength) can be positioned so as to be separated from light emitting elements positioned at other locations and / or light emitting elements that emit light in a band different from the first band. For example, the light emitting elements (301, 302, 303 and / or 304) that emit light in a first band (e.g., UV wavelength) can additionally be separated from light emitted from light emitting elements positioned at other locations and / or light emitting elements that emit light in a band different from the first band by applying a partition structure for optical isolation.

[0074] According to one embodiment, the electronic device (101) can measure advanced glycation end products (AGEs) using light emitting elements (301, 302, 303 and / or 304) that emit light in a first band (e.g., UV wavelength).

[0075] According to one embodiment, light emitting elements (311, 312, 313 and / or 314) emitting light in a second band (e.g., blue wavelength) may optionally be mounted together with one light emitting element (301, 302, 303 and / or 304) emitting light in the first band (e.g., UV wavelength) in an outer region (e.g., at the 12 o'clock, 3 o'clock, 6 o'clock and / or 9 o'clock positions).

[0076] According to one embodiment, light emitting elements that emit light in a band different from the first band (e.g., UV wavelength) (e.g., R (red), G (green) and / or IR wavelength) may be positioned in the central region (331).

[0077] According to one embodiment, the receiver of the optical sensor (230) can receive light that is irradiated from the light emitting portion and transmitted, absorbed, scattered and / or reflected.

[0078] The optical sensor (230) may include various light-receiving elements, such as a photodiode (PD) and / or a complementary metal oxide semiconductor (CMOS) image sensor. The light-receiving element may include a filter, thereby allowing light of a specific band to be received or light of a specific band to be filtered.

[0079] According to one embodiment, the optical sensor (230) may include a plurality of light-receiving elements. The plurality of light-receiving elements may have different reactivity. For example, the plurality of light-receiving elements may include a light-receiving element capable of receiving light in a specific band, a light-receiving element capable of filtering light in a specific band and receiving light in another band, and / or a light-receiving element capable of receiving light in all bands. For example, the optical sensor (230) may include a first light-receiving element capable of receiving light in all bands (e.g., a normal PD) and / or a second light-receiving element capable of filtering a first band (e.g., a UV wavelength) and receiving light in another band (e.g., a UV cut PD or a green PD). Hereinafter, the first light-receiving element and the second light-receiving element are described as examples, but the embodiments are not limited thereto, and light-receiving elements having various reactivity may be applied.

[0080] According to one embodiment, the photodetectors may be arranged adjacent to the light-emitting elements in the outer region of the optical sensor (230) but spaced apart from each other by a certain distance.

[0081] According to one embodiment, the first light-receiving element (321) and the second light-receiving element (322) may be arranged adjacent to the outer region where the first light-emitting element (301, 302, 303, 304) is mounted and spaced apart from each other by a predetermined distance. For example, the first light-receiving element (321) and the second light-receiving element (322) may be arranged adjacent to the first light-emitting element (301), respectively. In this case, the first light-receiving element (321) and the second light-receiving element (322) may be arranged symmetrically spaced apart from the outer region where the first light-emitting element (301) is mounted by the same distance. For example, the first light-receiving element (321) and the second light-receiving element (322) may be arranged to be spaced apart from the outer region where the first light-emitting element (301) is arranged clockwise to the left (upper) and right (lower), respectively, by the same or substantially the same distance (e.g., 3 to 3.5 mm).

[0082] According to one embodiment, the third light-receiving element (323) and the fourth light-receiving element (324) may be disposed adjacent to the outer region where the third light-emitting element (303) is mounted and spaced apart from each other by a predetermined distance. The third light-receiving element (323) may be a light-receiving element capable of receiving light of all bands (e.g., a normal PD). The fourth light-receiving element (324) may be a light-receiving element capable of filtering a first band (e.g., a UV wavelength) and receiving light of another band (e.g., a UV cut PD or a green PD). For example, the third light-receiving element (323) and the fourth light-receiving element (324) may be disposed adjacent to the third light-emitting element (303), respectively. In this case, the third light-receiving element (323) and the fourth light-receiving element (324) may be disposed symmetrically spaced apart from the outer region where the third light-emitting element (303) is mounted by the same distance. For example, the third light-receiving element (323) and the fourth light-receiving element (324) may be arranged to be spaced apart from the outer region where the third light-emitting element (303) is arranged clockwise to the left (upper) and right (lower), respectively, by the same or substantially the same distance (e.g., 3 to 3.5 mm).

[0083] According to one embodiment, a plurality of light-receiving elements including a first light-receiving element (321), a second light-receiving element (322), a third light-receiving element (323), and a fourth light-receiving element (324) may be arranged to be spaced apart from a central region (331) in which a plurality of light-emitting elements are arranged by the same distance or substantially the same distance (e.g., 3 to 3.5 mm). For example, a plurality of light-receiving elements including a first light-receiving element (321), a second light-receiving element (322), a third light-receiving element (323), and a fourth light-receiving element (324) may be arranged to form a circle along an outer region in which a plurality of light-emitting elements are arranged by the same distance or substantially the same distance (e.g., 3 to 3.5 mm) along an outer region centered on a central region (331) in which a plurality of light-emitting elements are arranged.

[0084] According to one embodiment, the optical sensor (230) can estimate a melanin index by receiving light emitted from a plurality of light-emitting elements (e.g., red, IR, green LEDs) (e.g., light-emitting elements disposed in a central region (331)) through second light-receiving elements (323 and 324) disposed in different regions at the same or substantially the same distance apart, and thereby correct the AGEs value.

[0085] FIGS. 5 and 6 are drawings for explaining an optical sensor of an electronic device according to various embodiments.

[0086] Referring to FIGS. 5 and 6, the optical sensor (230) may include a light-emitting unit including a plurality of light-emitting elements and a light-receiving unit including a plurality of light-receiving elements.

[0087] In one embodiment, the optical sensor (230) may be positioned on a printed circuit board so as to face a second side (220) (e.g., the back side that contacts the user's body) of a housing (e.g., the housing (200) of FIG. 2).

[0088] The emitter of the optical sensor (230) can emit light of various bands. For example, the emitter can be composed of elements such as an LED, a laser, or a VCSEL.

[0089] The optical sensor (230) may include a plurality of light-emitting elements that emit light of various wavelengths, such as green, red, infrared (IR), blue, yellow, and ultraviolet (UV).

[0090] According to one embodiment, the light emitting elements (501 and / or 503) emitting light of the first band (e.g., UV wavelength) may be disposed in an outer region of the optical sensor (230). The light emitting elements (501 and / or 503) emitting light of the first band (e.g., UV wavelength) may be disposed at positions symmetrical to each other. For example, the light emitting elements (501 and / or 503) emitting light of the first band (e.g., UV wavelength) may be disposed in regions corresponding to positions at about 90 degrees (3 o'clock position) and about 270 degrees (9 o'clock position) along a peripheral region with respect to a central region of the optical sensor (230) on a printed circuit board, respectively.

[0091] According to one embodiment, the light emitting elements (501 and / or 503) emitting light in a first band (e.g., UV wavelength) may be arranged to be spaced apart from light emitting elements arranged in other positions and / or light emitting elements emitting light in a band different from the first band. For example, the light emitting elements (501 and / or 503) emitting light in a first band (e.g., UV wavelength) may additionally have a partition structure to be separated from light emitted from light emitting elements arranged in other positions and / or light emitting elements emitting light in a band different from the first band. The first region where the first light emitting element (501) emitting light in the first band is arranged may correspond to a position that is substantially point-symmetrical with respect to a second region where the third light emitting element (503) emitting light in the first band is arranged and a central region of a printed circuit board that is arranged to face the second surface of the housing where the optical sensor (230) is arranged.

[0092] According to one embodiment, the electronic device (101) can measure advanced glycation end products (AGEs) using light emitting elements (501 and / or 503) that emit light in a first band (e.g., UV wavelength).

[0093] According to one embodiment, light emitting elements that emit light in a band different from a first band (e.g., red, green, blue, violet, yellow, and / or infrared wavelengths) may be disposed in a central region (531) and / or a peripheral region (a third region (511) and / or a fourth region (512)) of the printed circuit board. Light emitting elements that emit light in a band different from the first band (e.g., UV wavelengths) (e.g., R, G, B, V, Y, and / or IR wavelengths) may be disposed in a peripheral region (511 and / or 512) that is separated from a region where light emitting elements (501 and / or 503) that emit light in the first band (e.g., UV wavelengths) are disposed. For example, light emitting elements that emit light in a specific band (e.g., B, V, Y, and / or IR wavelengths) may be disposed in the central region (531). For example, light emitting elements that emit light of a specific band (e.g., R, G, and / or IR wavelengths) may be arranged at positions that are symmetrical with respect to each other within the third region and the fourth region. For example, light emitting elements that emit light of a specific band (e.g., R, G, and / or IR wavelengths) may be arranged in a symmetrical manner with respect to each other within the third region (511) and the fourth region (512) at the 12 o'clock position and the 6 o'clock position outside the optical sensor (230). For example, light emitting elements that emit light of a specific band (R wavelength) arranged in the third region (511) and the fourth region (512) may be arranged at positions that are substantially point-symmetrical with respect to each other with respect to the central region of the printed circuit board opposite the second surface of the housing.A first region where a first light-emitting element (501) emitting light of the first band is arranged, a second region where a second light-emitting element (503) emitting light of the first band is arranged, a third region (511) and a fourth region (512) where light-emitting elements emitting light of other bands (e.g., R, G, B, V, Y and / or IR wavelengths) are arranged may correspond to positions that are point-symmetrical with respect to the center of a printed circuit board facing the second surface of the housing where the optical sensor (230) is arranged.

[0094] According to one embodiment, the receiver of the optical sensor (230) can receive light that is irradiated from the light emitting portion and transmitted, absorbed, scattered and / or reflected.

[0095] The optical sensor (230) may include a plurality of light-receiving elements. The light-receiving elements may include various light-receiving elements, such as a photodiode (PD) and / or a complementary metal oxide semiconductor (CMOS) image sensor. The light-receiving element may include a filter, thereby allowing it to receive light of a specific band or filter light of a specific band.

[0096] According to one embodiment, the optical sensor (230) may include a plurality of light-receiving elements. The plurality of light-receiving elements may have different reactivity. For example, the plurality of light-receiving elements may include a light-receiving element capable of receiving light in a specific band, a light-receiving element capable of filtering light in a specific band and receiving light in another band, and / or a light-receiving element capable of receiving light in all bands. For example, the optical sensor (230) may include a first light-receiving element capable of receiving light in all bands (e.g., a normal PD) and / or a second light-receiving element capable of filtering at least a portion of a first band (e.g., a UV wavelength) and receiving light in another band (e.g., a UV cut PD or a green PD). Hereinafter, the first light-receiving element and the second light-receiving element are described as examples, but the embodiments are not limited thereto, and light-receiving elements having various reactivity may be applied.

[0097] According to one embodiment, the photodetectors may be arranged adjacent to the light-emitting elements in the outer region of the optical sensor (230) but spaced apart from each other by a certain distance.

[0098] According to one embodiment, the first light-receiving element (521) and the second light-receiving element (522) may be disposed adjacent to the outer region where the first light-emitting element (501) is mounted and spaced apart from each other by a predetermined distance. The first light-receiving element (521) may be a light-receiving element capable of receiving light of all bands (e.g., a normal PD). The second light-receiving element (522) may be a light-receiving element capable of filtering a first band (e.g., a UV wavelength) and receiving light of another band (e.g., a UV cut PD or a green PD). For example, the first light-receiving element (521) and the second light-receiving element (522) may be disposed adjacent to the first light-emitting element (501), respectively. In this case, the first light-receiving element (521) and the second light-receiving element (522) may be disposed symmetrically spaced apart from each other by the same distance with respect to the outer region where the first light-emitting element (501) is mounted. For example, the first light-receiving element (521) and the second light-receiving element (522) may be arranged to be spaced apart from the outer region where the first light-emitting element (501) is arranged clockwise to the left (upper) and right (lower), respectively, by the same or substantially the same distance (e.g., 3 to 3.5 mm). In addition, the third light-receiving element (523) and the fourth light-receiving element (524) may be arranged to be spaced apart from the outer region where the third light-emitting element (503) is arranged by the same distance symmetrically. For example, the third light-receiving element (523) and the fourth light-receiving element (524) may be arranged to be spaced apart from the outer region where the third light-emitting element (503) is arranged clockwise to the left (lower) and right (upper), respectively, by the same or substantially the same distance (e.g., 3 to 3.5 mm).

[0099] According to one embodiment, the first path (601) and the second path (602), which are light arrival paths from the first light-emitting element (501) to the first light-receiving element (521) and the second light-receiving element (522), may be the same distance. In addition, the first path (603) and the second path (604), which are light arrival paths from the third light-emitting element (503) to the third light-receiving element (523) and the fourth light-receiving element (524), may be the same distance.

[0100] According to one embodiment, a plurality of light-receiving elements including a first light-receiving element (521), a second light-receiving element (522), a third light-receiving element (523), and a fourth light-receiving element (524) may be arranged to be spaced apart from a central region (531) in which a plurality of light-emitting elements are arranged at the same distance or substantially the same distance (e.g., 3 to 3.5 mm). The third light-receiving element (323) may be a light-receiving element capable of receiving light of all bands (e.g., normal PD). The fourth light-receiving element (324) may be a light-receiving element capable of filtering a first band (e.g., UV wavelength) and receiving light of another band (e.g., UV cut PD or green PD). For example, a plurality of light-receiving elements including a first light-receiving element (521), a second light-receiving element (522), a third light-receiving element (523), and a fourth light-receiving element (524) may be arranged in a circular shape along the periphery so as to be spaced apart from each other by the same distance or substantially the same distance (e.g., 3 to 3.5 mm) along the periphery centered on a central region (531) in which a plurality of light-emitting elements are arranged.

[0101] According to one embodiment, the optical sensor (230) may receive light emitted from a plurality of light-emitting elements (e.g., red, IR, green LEDs) (e.g., light-emitting elements disposed in the outer region (511, 512)) through the first light-receiving element (521) and the third light-receiving element (523) disposed in different regions at the same or substantially the same distance apart from each other to estimate the melanin index and perform correction for the AGEs value.

[0102] According to one embodiment, light emitted from light-emitting elements arranged symmetrically in the outer regions (511 and 512) at symmetrical positions, for example, at the outer 12 o'clock position and the outer 6 o'clock position, of the optical sensor (230) can be received through the first light-receiving element (521) and the third light-receiving element (523), respectively. For example, light emitted from light-emitting elements arranged in the outer region (511) at the outer 6 o'clock position of the optical sensor (230) can be received through the first light-receiving element (521). For example, light emitted from light-emitting elements arranged in the outer region (512) at the outer 12 o'clock position of the optical sensor (230) can be received through the third light-receiving element (523). According to this arrangement, the distance between the optical path (611) and the optical path (612) can be made the same, and can be made as long as possible (e.g., 8 mm or more) within the possible limits. Accordingly, light of a relatively long wavelength (e.g., red, green, and / or IR) can be absorbed or transmitted into the body and settle on the light-receiving elements, and the deviation according to the settling can be improved (robustness), and the influence of X-talk due to light of a different wavelength can be reduced. Accordingly, the skin tone sensing accuracy can be improved, and the melanin index according to the correction can be improved, so that the skin tone accuracy can be improved.

[0103] According to one embodiment, the amount of light reflected by light of a relatively long wavelength (e.g., red and / or IR) may be measured to estimate a corresponding skin tone and correct the AGEs index value. In this case, an average reference value of the amount of light reflected by light of a relatively long wavelength (e.g., red and / or IR) and a corresponding skin tone may be stored in advance. Accordingly, the optical sensor (230) may be controlled to emit light of a relatively long wavelength (e.g., red and / or IR) and the amount of reflected light may be compared with the reference value to correct the AGEs index value according to the estimated skin tone. In this case, the melanin index may not be estimated separately.

[0104] According to one embodiment, light-emitting elements (501 and / or 503) emitting light of a designated first band (e.g., UV wavelength) are respectively arranged in regions corresponding to positions in the 90 degree (3 o'clock position) and 270 degree (9 o'clock position) directions along the outer region based on the center of the optical sensor (230), and the lengths of the light paths from these light-emitting elements to the adjacent first light-receiving element (521), second light-receiving element (522), third light-receiving element (523), and fourth light-receiving element (524) are each made substantially the same, so that the intensity of fluorescence light generated by UV light incident on the user's body can be measured more accurately, thereby improving the accuracy of measuring AGEs (advanced glycation end products).

[0105] Table 1 may show the characteristics of an optical sensor (230) according to the present disclosure.

[0106] LEDPhotodiodecolorcenter wavelengthtypecoverageUV350nmNormal PD340nm~980nmBlue405nm or 470nmUV cut PD480nm~980nmGreen525nmRed600nmIR940nm

[0107] According to one embodiment, the optical sensor (230) may arrange the first light-emitting element, the first light-receiving element, and the second light-receiving element so that the lengths of the light paths from the first light-emitting element (e.g., UV LED) to the second light-receiving element (e.g., UV cut PD) that receives fluorescent light generated when the emitted light reaches the user's body and the first light-receiving element (e.g., normal PD) that receives UV light reflected from the user's body are the same. The advanced glycation end product (AGE) measurement value may sensitively change depending on the amount of light received by the first light-receiving element and the second light-receiving element. Therefore, by making the lengths of the light paths the same, the advanced glycation end product (AGE) measurement value can be measured more accurately even when the magnitude of the signal changes somewhat differently depending on the wearing state. Additionally, by positioning the first light-emitting element (e.g., UV LED) apart from the second light-emitting elements of different bands (e.g., red, green, and / or IR LEDs), noise can be further prevented from being generated by the second light-emitting elements being excited or generating an optical signal due to the light emission of the first light-emitting element, regardless of whether current is applied.

[0108] In one embodiment, the first light-emitting element (e.g., UV LED) can be mounted separately from LEDs of other wavelengths. By mounting the UV LED separately from the other LEDs and arranging the optical path lengths from the first light-receiving element (e.g., normal PD) to the second light-receiving element (e.g., UV cut PD) to be the same, the deviation of the measured values ​​depending on the wearing state can be further improved.

[0109] According to one embodiment, for skin tone measurement and melanin measurement, all of the plurality of light-emitting elements, for example, R, G, B, and IR LEDs, may be utilized. In the structure illustrated in FIG. 6 in which a plurality of light-receiving elements are arranged, the light emitted by the G and B light-emitting elements having relatively short wavelengths can be more received by light-receiving elements that are relatively close to the corresponding light-emitting elements, and the light emitted by the R and IR light-emitting elements having relatively long wavelengths can be more received by light-receiving elements that are relatively far from the corresponding light-emitting elements. In addition, the plurality of light-emitting elements, for example, R, G, and IR lights, may be arranged in a multi-array at mutually symmetrical positions in an outer region (512) at the 12 o'clock position and an outer region (511) at the 6 o'clock position, and these plurality of light-emitting elements may be arranged to be point-symmetrical about the center of the shape of the optical sensor (230).

[0110] In one embodiment, the plurality of light-emitting elements may be implemented as elements that emit light from a laser family with improved optical properties, such as vertical-cavity surface-emitting lasers (VCSELs) or laser diodes (LDs). The use of lasers allows for deeper body penetration, allowing for more precise detection of biomarkers, thereby improving performance.

[0111] In one embodiment, the photodetector may be at least partially replaced with a light sensor capable of color picking to improve skin tone or melanin detection accuracy, and an image sensor such as a CMOS may be positioned.

[0112] In one embodiment, the plurality of light-receiving elements may include a plurality of PDs having different pixels capable of receiving light of a plurality of different bands. For example, PDs having different pixels capable of receiving light of red, green, blue, and clear (all) bands may be used to measure the amount of light in each band. When measuring using different types of PDs that measure the amount of light in each band, the sampling period can be increased by emitting and measuring light such as R, G, B, V, and IR substantially simultaneously.

[0113] FIGS. 7A, 7B, and 8 are diagrams for explaining the operation of an optical sensor (e.g., an optical sensor (230) of FIGS. 2 to 6) of an electronic device (e.g., an electronic device (101) of FIG. 1) according to various embodiments of the present disclosure.

[0114] Referring to FIGS. 7A, 7B, and 8, the optical sensor (230) of the electronic device (101) can measure advanced glycation end products (AGEs) using, for example, one or more first light-emitting elements (e.g., the first light-emitting elements (301, 302, 303, 304, 501, and / or 503) of FIGS. 3 to 6).

[0115] According to one embodiment, light (711) of a designated band (e.g., UV wavelength of about 320 to 365 nm) emitted from a first light-emitting element may be irradiated onto a body surface of a user. The irradiated light may pass through, for example, the epidermis (701) of the user's skin, which is composed of the epidermis (701), the dermis (702), and the subcutaneous tissue (703), and may be absorbed by advanced glycation end products (705) accumulated in the dermis (702) to emit fluorescence (e.g., wavelength band of about 500 nm) (712) having a green spectrum, which may be received and measured by an optical sensor (230).

[0116] The x-axis of FIG. 8 represents the wavelength (nm) of light, and the y-axis can represent the relative intensity of light. As illustrated in FIG. 8, UV light (801) emitted from the first light-emitting element has a wavelength of about 320 to 365 nm, and fluorescent light (802) having a green spectrum emitted when UV light is absorbed by the final glycation end product has a wavelength of about 380 to 600 nm, and a second light-receiving element equipped with a filter that excludes UV light (e.g., UV cut PD) can exclude the overlapping wavelength band of UV light and fluorescent light and receive the wavelength band (810) of fluorescent light.

[0117] FIGS. 9, 10A, and 10B are diagrams for explaining the operation of an optical sensor (e.g., an optical sensor (230) of FIGS. 2 to 6) of an electronic device (e.g., an electronic device (101) of FIG. 1 or 2) according to various embodiments.

[0118] Referring to FIGS. 9, 10A, and 10B, UV light can be significantly absorbed by melanin, as shown in the melanin absorption spectrum. The x-axis of FIG. 9 represents wavelength (nm), and the y-axis represents absorption rate (%), and the graphs can show changes in absorption rate according to light wavelength when the melanin concentration is 0.1, 0.2, 0.4, 0.6, and 0.8 (gm / l), respectively. According to the drawings, it can be seen that the higher the melanin concentration, the higher the light absorption rate, and in particular, it can be seen that the higher the melanin concentration, the higher the light absorption rate differently in the UV light wavelength band (approximately 300 nm). Therefore, since the intensity of reflected UV light can vary depending on the skin tone, i.e., the melanin concentration, correction of the UV signal may be necessary through skin tone (melanin index) measurement for accurate measurement of advanced glycation end products. The melanin index can be indirectly calculated using the R, G, and B values ​​using the following mathematical formula (1). The formula below is an example and may vary depending on the structure and performance of the measurement sensor. Additionally, IR values ​​may be used in addition to R, G, and B values.

[0119] melanin_index = 0.31*R + 0.58*G + 0.11*B ------- (Equation 1)

[0120] The above mathematical formula 1 is merely an example to aid understanding, and embodiments of the present disclosure may not be limited thereto. For example, the above mathematical formula 1 may be modified, applied, or expanded in various ways.

[0121] Figures 10A and 10B are drawings showing the effect of correction of measurement values ​​by an optical sensor.

[0122] Referring to FIGS. 10A and 10B, for accurate skin tone (melanin index) correction, the light paths (e.g., 8 mm or more) of light-emitting elements (e.g., red, IR LED) and second light-receiving elements (e.g., normal PD) positioned in an outer region (e.g., the outer region (511, 512) at the 12 o'clock and 6 o'clock positions of FIG. 5 or 6) can be made longer. In addition, the light-emitting elements positioned in the outer regions (511, 512) at the 12 o'clock and 6 o'clock positions can be arranged in a symmetrical structure with the same light path. Therefore, the influence of the wearing state can be reduced compared to when the light path is short. In addition, as the light path is lengthened, the melanin sensing region is expanded, so that the accuracy of skin tone measurement can be improved.

[0123] In a stable state without movement, the x-axis represents the melanin level measured using a melanin measurement specialized device, and in contrast, the y-axis represents the melanin level measured using the optical sensor (230) of the electronic device (101) according to the length of the optical path, so that the correlation between them can be compared. Fig. 10A shows the correlation of the measured values ​​when the distance between the light-emitting element and the light-receiving element is relatively short and thus the optical path is short, and Fig. 10B shows the correlation of the measured values ​​when the distance between the light-emitting element and the light-receiving element is relatively long and thus the optical path is long. Compared to the case where the optical path is short as in Fig. 10A, in the case where the optical path is long in Fig. 10B, the correlation increases by approximately 0.1 from about 0.94 to about 0.95, and the error also decreases by approximately 3% in ESTD (standard variation) from about 32.26 to about 31.19, confirming that the skin correction performance is improved.

[0124] FIG. 11 is a diagram for explaining an operation of displaying a value measured by an optical sensor (e.g., an optical sensor (230) of FIGS. 2 to 6) of an electronic device (e.g., an electronic device (101) of FIG. 1 or 2) according to one embodiment.

[0125] Referring to FIG. 11, the electronic device (101) can measure the amount of light of fluorescent color (green) detected by a plurality of light-receiving elements to measure the AGEs value measured by a biosensor or an optical sensor (230), and estimate the modeled AGEs index (1102) value according to the size of the amount of light.

[0126] The higher the amount of AGEs, the lower the AGEs index (1102) value may be, and the lower the amount of AGEs, the higher the AGEs index (1102) value may be. However, the index value for AGEs can also be defined in the opposite way.

[0127] According to one embodiment, the electronic device (101) may measure the AGEs value daily and display the AGEs index (1102) value on a display (1101) (e.g., the display module (160) of FIG. 1).

[0128] In one embodiment, the electronic device (101) can measure the AGEs index (1102) value multiple times and display the average value. The electronic device (101) can also display the AGEs index (1102) value at various intervals, for example, weekly or monthly.

[0129] FIG. 12 is a flowchart illustrating a measurement operation by an optical sensor (e.g., an optical sensor (230) of FIGS. 2 to 6) of an electronic device (e.g., an electronic device (101) of FIG. 1 or 2) according to one embodiment.

[0130] Referring to Figure 12, the operations may be performed sequentially, but are not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel.

[0131] According to one embodiment, operations 1201 to 1211 may be understood to be performed in a processor (e.g., processor (120) of FIG. 1) of an electronic device (e.g., electronic device (101) of FIG. 1).

[0132] According to one embodiment, an electronic device may perform a measurement operation using an optical sensor.

[0133] In one embodiment, AGEs can be measured manually on demand or automatically and continuously. Automatic measurements can be configured to measure when a state of stillness or minimal movement, such as sleep, persists for a specified period of time. Because sleep is characterized by little or no movement, this can further enhance the accuracy of AGEs measurements, which require measurements at multiple wavelengths.

[0134] For example, when measuring AGE during a sleep session, measurements can be made for a set period of time (e.g., 10 seconds) every hour. A representative AGE index can be determined based on various mathematical operations, such as the mean, mode, median, maximum, and / or minimum, of the AGEs measured during the sleep session.

[0135] In one embodiment, at operation 1201, the electronic device (101) may turn on a first light-emitting element (e.g., a UV LED) of the optical sensor (230) to operate.

[0136] According to one embodiment, in operation 1203, the electronic device (101) can obtain the intensity of an optical signal emitted upon turning on the first light-emitting element of the optical sensor (230) through the first light-receiving element and the second light-receiving element.

[0137] According to one embodiment, the electronic device (101) can irradiate the UV LED of the optical sensor onto the user's skin, thereby inducing AGEs substances in the skin to react and generate fluorescence. The intensity of the light signal of the UV LED can be measured through a first light-receiving element. The induced fluorescence of the AGEs substances can be measured using a second light-receiving element, thereby measuring the intensity of the fluorescence signal.

[0138] According to one embodiment, during a sleep session, the electronic device (101) can sample biometric data at a frequency of, for example, about 25 Hz (25 times per second). The electronic device (101) can control the UV, R, G, B, and IR LEDs to be activated (e.g., turned on and emitting light) for measurement. In this case, bands other than the UV band can be selectively activated. For example, the sampling cycle can be about 25 Hz, and sampling can be performed in units of about 40 ms, and the UV LED can be activated and the IR, red, green, blue, and IR (infrared) LEDs can be sequentially activated within about 40 ms. According to a sequential schedule, a plurality of light-receiving elements can measure the amount of light in the activated bands, store the measured values, and use the measured values ​​to calculate the AGE value.

[0139] When LEDs are activated, they can be activated simultaneously in bands with little overlap, rather than adjacent bands. For example, LEDs with wavelengths in the blue and IR bands can be activated simultaneously, allowing the PD to filter and measure the signal strength.

[0140] According to one embodiment, the electronic device (101) can sequentially or simultaneously activate other LEDs (e.g., red, IR, green and / or blue LEDs) other than the first light-emitting element after the operation of the first light-emitting element in operation 1205, and the intensity of the optical signal can be acquired through the first light-receiving element and the second light-receiving element in operation 1207. In this case, the light emitted from each light-emitting element of the optical sensor can be sensed by a light-receiving element disposed close to each of them (close PD) and a light-receiving element disposed far away from each of them (far PD).

[0141] For green or blue light with relatively short wavelengths, the skin penetration depth is shallow, so a large amount of light can be measured at a nearby photodetector (close PD). Conversely, for red or IR light with relatively long wavelengths, the skin penetration depth is deep, so after penetrating the body, the signal can reach a photodetector placed far away (far PD) through absorption, scattering, or reflection.

[0142] According to one embodiment, the electronic device (101) may calculate a melanin index using optical signal measurements of other light emitting elements (e.g., red, IR, green and / or blue LEDs) at operation 1209.

[0143] According to one embodiment, the electronic device (101) may estimate the final glycation end product index value based on the fluorescence amount derived using the optical signal measurement value of the first light-emitting element (e.g., UV LED) in operation 1211. In this case, the electronic device (101) may correct the fluorescence amount using the melanin index.

[0144] According to one embodiment, a wearable device (e.g., an electronic device (101) of FIG. 1 or 2) comprises a housing (200) including a first surface (e.g., a first surface (210) of FIG. 2), a second surface opposite the first surface (e.g., a second surface (220) of FIG. 2), and a third surface substantially surrounding the first surface and forming a side surface of the wearable device, a display accommodated in the housing so as to be visible through the first surface, a printed circuit board disposed between the display and the second surface, and a plurality of light-emitting elements (e.g., light-emitting elements (301, 302, 303, 304, 311, 312, 313, 314, 501, 503) of FIG. 3, FIG. 4, FIG. 5 and / or FIG. 6) disposed opposite the second surface and a plurality of light-receiving elements A biosensor (e.g., a biosensor (230) of FIGS. 2, 3, 4, 5 and 6) comprising a plurality of light-emitting elements (e.g., light-receiving elements (321, 322, 323, 324, 521, 522, 523, and / or 524) of FIGS. 3, 4, 5 and / or 6), wherein the plurality of light-emitting elements comprises a first light-emitting element (e.g., light-receiving elements (301, 302, 303, 304, 501 and / or 503) of FIGS. 3, 4, 5 and / or 6) arranged in a peripheral region of the printed circuit board and configured to emit first light of a first specified band, and a second light-emitting element arranged in a central region of the printed circuit board and configured to emit second light of a second specified band at least partially different from the first specified band, wherein the plurality of light-receiving elements The elements include a first light-emitting element and a second light-receiving element that receive light emitted from the first light-emitting element and the second light-emitting element and reflected by a part of the user's body, and the first light-emitting element can be disposed in the peripheral area adjacent to each of the first light-receiving element and the second light-receiving element.

[0145] In one embodiment, the first light-emitting element may be spaced apart from the first light-receiving element by a first distance and spaced apart from the second light-receiving element by a second distance substantially equal to the first distance.

[0146] In one embodiment, the first light-emitting element may include an ultra-violet (UV) light-emitting element, and the second light-receiving element may include a diode that receives light by filtering at least a portion of light in the UV band.

[0147] According to one embodiment, the first light-emitting element may further include a baffle structure configured to optically isolate the first light-emitting element.

[0148] According to one embodiment, the plurality of light-emitting elements further include a third light-emitting element that emits light of substantially the same band as the first light, and the third light-emitting element is disposed in the peripheral region and, when viewed from the second surface, can be positioned substantially symmetrically with respect to the first light-emitting element with respect to the central region.

[0149] According to one embodiment, the plurality of light-receiving elements further include a third light-receiving element and a fourth light-receiving element, wherein the third light-receiving element may be positioned substantially symmetrically with respect to the first light-receiving element with respect to the central region, and the fourth light-receiving element may be positioned substantially symmetrically with respect to the second light-receiving element with respect to the central region.

[0150] In one embodiment, the third light-emitting element may include an ultra-violet (UV) light-emitting element, and the fourth light-receiving element may include a diode that receives light by filtering at least a portion of light in the UV band.

[0151] In one embodiment, the third light-emitting element may be spaced apart from the third light-receiving element by a third distance, and may be spaced apart from the fourth light-receiving element by a fourth distance substantially equal to the third distance.

[0152] According to one embodiment, the plurality of light-emitting elements further include a fourth light-emitting element and a fifth light-emitting element that emit light of a third band different from the first band, and the fourth light-emitting element and the fifth light-emitting element are disposed between the second light-receiving element and the third light-receiving element in the peripheral area, and the first light-receiving element can be configured to receive at least a portion of light emitted from the fourth light-emitting element or the fifth light-receiving element and reflected from a part of the body.

[0153] According to one embodiment, the first light-emitting element may be set to turn on sequentially with at least one of the second light-emitting element, the fourth light-emitting element, or the fifth light-emitting element.

[0154] According to one embodiment, at least one of the one or more biosensors may be configured to measure advanced glycation end products (AGEs) in the user's skin based at least in part on the intensity of the reflected light emitted from at least one of the first light-emitting element or the third light-emitting element and acquired through the first light-receiving element or the second light-receiving element.

[0155] According to one embodiment, at least one of the one or more biosensors may be configured to estimate a melanin index of the user's skin and correct for the final glycation oxidation product based at least in part on the intensity of the reflected light emitted from at least one of the second light-emitting element, the fourth light-emitting element, or the fifth light-emitting element and acquired through the first light-receiving element or the second light-receiving element.

[0156] In one embodiment, the first band is a UV band, and each of the fourth band and the fifth band may correspond to red, blue, green, violet, yellow, or IR (infra-red).

[0157] According to one embodiment, at least one of the one or more biosensors may be configured to measure advanced glycation end products (AGEs) in the user's skin based at least in part on the intensity of the reflected light obtained through the first light-receiving element or the second light-receiving element.

[0158] According to one embodiment, at least one of the one or more biosensors may be configured to estimate a melanin index of the user's skin and correct for the final glycation oxidation product based at least in part on the intensity of the reflected light obtained through the first light-receiving element or the second light-receiving element.

[0159] According to one embodiment, the final glycation level may be measured at a specified interval, and a final glycation level index may be determined that includes at least one of an average value, a maximum value, or a minimum value of the final glycation level measurements.

[0160] According to one embodiment, an electronic device (e.g., an electronic device (101) of FIG. 1 or 2) comprises a housing (200) having a transparent cover that contacts a body of a user of the electronic device, a plurality of light-emitting elements (e.g., light-emitting elements (301, 302, 303, 304, 311, 312, 313, 314, 501, 503) of FIGS. 3, 4, 5 and / or 6) including a first light-emitting element that emits ultra-violet (UV) light through the transparent cover and a second light-emitting element that is separated from the first light-emitting element by a partition wall and emits at least one of visible light or infra-red (IR) light through the transparent cover), a plurality of light-receiving elements (e.g., FIGS. 3, 4, 5 and / or 6) including a first light-receiving element and a second light-receiving element that detect UV unfiltered light and UV filtered light, respectively, emitted from the plurality of light-emitting elements and reflected by a part of the body of the user, The light-receiving element (321, 322, 323, 324, 521, 522, 523, and / or 524) of FIG. 5 and / or FIG. 6) may include a processor (e.g., processor (120) of FIG. 1) that obtains first biometric information related to the user based on the UV unfiltered light and the UV filtered light corresponding to the UV light emitted by the first light-emitting element, and obtains second biometric information based on the UV unfiltered light and / or the UV filtered light corresponding to at least one of the visible light or IR light emitted by the second light-emitting element.

[0161] In one embodiment, the first light-emitting element is spaced a first distance from the first light-receiving element and a second distance from the second light-receiving element, wherein the second distance may be substantially equal to the first distance.

[0162] According to one embodiment, the plurality of light-emitting elements may further include a third light-emitting element that emits UV light through the transparent cover, and the third light-emitting element may be positioned symmetrically with respect to the first light-emitting element.

[0163] According to one embodiment, the plurality of light-receiving elements further include a third light-receiving element and a fourth light-receiving element that detect UV unfiltered light and UV filtered light respectively emitted from the plurality of light-emitting elements and reflected by a part of the user's body, and the third light-receiving element may be arranged at a position symmetrical with respect to the first light-receiving element, and the fourth light-receiving element may be arranged at a position symmetrical with respect to the second light-receiving element.

[0164] In one embodiment, the third light-emitting element is spaced a third distance from the third light-receiving element and a fourth distance from the fourth light-receiving element, wherein the fourth distance may be substantially equal to the third distance.

[0165] According to one embodiment, the processor may be driven to sequentially turn on at least one of the first light-emitting element and the third light-emitting element and the second light-emitting element.

[0166] According to one embodiment, the processor can turn on at least one of the first light-emitting element and the third light-emitting element, and acquire the first bio-information based at least in part on the intensity of light acquired through the first light-receiving element, the second light-receiving element, the third light-receiving element, and the fourth light-receiving element.

[0167] According to one embodiment, the processor can turn on the second light-emitting element and acquire the second biometric information based at least in part on the intensity of light acquired through the first light-receiving element, the second light-receiving element, the third light-receiving element, and the fourth light-receiving element.

[0168] According to one embodiment, the first biometric information includes an advanced glycation end product (AGE) measurement value in the user's skin, the second biometric information includes a melanin index of the user's skin, and the processor can correct the AGE measurement value based on the melanin index.

[0169] According to one embodiment, the processor may be configured to measure the final glycation amount at a specified period and determine a final glycation amount index including at least one of an average value, a maximum value, or a minimum value of the final glycation amount measurements.

[0170] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0171] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "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" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish the component from other such components and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first) is referred to as "coupled" or "connected" to another component (e.g., a second), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0172] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0173] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called 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. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0174] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0175] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separately arranged in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0176] While the present disclosure has been illustrated and described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the present disclosure as defined by the appended claims and their equivalents.

Claims

1. In wearable devices, A housing comprising a first surface, a second surface opposite the first surface, and a third surface substantially surrounding the first surface and forming a side surface of the wearable device; A display accommodated in the housing so as to be visible through the first surface; A printed circuit board disposed between the display and the second surface; and One or more biosensors including a plurality of light-emitting elements and a plurality of light-receiving elements, the plurality of light-emitting elements being arranged on the printed circuit board so as to face the second surface, the first light-emitting element being arranged in a peripheral area of ​​the printed circuit board and set to emit a first light of a first specified band, and a second light-emitting element being arranged in a central area of ​​the printed circuit board and set to emit a second light of a second specified band that is at least partially different from the first specified band. A wearable device, wherein the plurality of light-receiving elements include a first light-receiving element and a second light-receiving element that receive light emitted from the first light-emitting element and the second light-emitting element and reflected by a part of the user's body, and wherein the first light-emitting element is disposed in the peripheral area adjacent to each of the first light-receiving element and the second light-receiving element.

2. In paragraph 1, A wearable device, wherein the first light-emitting element is spaced apart from the first light-receiving element by a first distance and is spaced apart from the second light-receiving element by a second distance substantially equal to the first distance.

3. In paragraph 1, A wearable device in which the first light-emitting element emits ultra-violet (UV) light, and the second light-receiving element receives light by filtering at least a portion of light in the UV band.

4. In paragraph 1, A wearable device further comprising a partition structure configured to optically isolate the first light-emitting element.

5. In paragraph 1, A wearable device wherein the plurality of light-emitting elements further include a third light-emitting element that emits light of substantially the same band as the first light, wherein the third light-emitting element is arranged in the peripheral region and, when viewed from the second surface, is positioned substantially symmetrically with respect to the first light-emitting element with respect to the central region.

6. In paragraph 5, A wearable device, wherein the plurality of light-receiving elements further include a third light-receiving element and a fourth light-receiving element, wherein the third light-receiving element is positioned substantially symmetrically with respect to the first light-receiving element with respect to the central region, and the fourth light-receiving element is positioned substantially symmetrically with respect to the second light-receiving element with respect to the central region.

7. In paragraph 6, A wearable device wherein the third light-emitting element comprises an ultra-violet (UV) light-emitting element, and the fourth light-receiving element comprises a diode that receives light by filtering at least a portion of light in the UV band.

8. In paragraph 6, A wearable device, wherein the third light-emitting element is spaced apart from the third light-receiving element by a third distance, and the fourth light-receiving element is spaced apart from the third distance by a fourth distance that is substantially the same as the third distance.

9. In paragraph 6, A wearable device wherein the plurality of light-emitting elements further include a fourth light-emitting element and a fifth light-emitting element that emit light in a third band different from the first designated band, the fourth light-emitting element and the fifth light-emitting element being arranged between the second light-receiving element and the third light-receiving element in the peripheral area, and the first light-receiving element being set to receive at least a portion of light emitted from the fourth light-emitting element or the fifth light-emitting element and reflected from a part of the body.

10. In paragraph 9, The first light-emitting element is set to be sequentially turned on with at least one of the second light-emitting element, the fourth light-emitting element, or the fifth light-emitting element, and at least one of the one or more biosensors is It is set to measure advanced glycation end products (AGEs) in the skin of the user based at least in part on the intensity of the reflected light emitted from at least one of the first light-emitting element or the third light-emitting element and acquired through the first light-receiving element or the second light-receiving element, At least one of the above one or more biometric sensors, A wearable device configured to estimate the melanin index of the user's skin and correct the final glycation oxidation product based at least in part on the intensity of the reflected light emitted from at least one of the second light-emitting element, the fourth light-emitting element, or the fifth light-emitting element and obtained through the first light-receiving element or the second light-receiving element.

11. In electronic devices, A housing having a transparent cover that comes into contact with the body of a user of the electronic device; A plurality of light-emitting elements including a first light-emitting element that emits ultra-violet (UV) light through the transparent cover, and a second light-emitting element that is separated from the first light-emitting element by a partition wall and emits at least one of visible light and infrared (IR) light through the transparent cover; A plurality of light-receiving elements including a first light-receiving element and a second light-receiving element that detect UV unfiltered light and UV filtered light respectively emitted from the plurality of light-emitting elements and reflected by a part of the user's body; memory for storing one or more computer programs; and One or more processors communicatively connected to said memory; The one or more computer programs comprise computer-executable instructions, which when individually or collectively executed by the one or more processors cause the electronic device to: Obtaining first biometric information related to the user based on the UV unfiltered light and the UV filtered light corresponding to the UV light emitted by the first light-emitting element, and obtaining second biometric information based on the UV unfiltered light and / or the UV filtered light corresponding to at least one of the visible light or the IR light emitted by the second light-emitting element. Electronic devices.

12. In paragraph 11, An electronic device wherein the first light-emitting element is spaced apart from the first light-receiving element by a first distance and is spaced apart from the second light-receiving element by a second distance, wherein the second distance is substantially equal to the first distance.

13. In paragraph 11, An electronic device wherein the plurality of light-emitting elements further include a third light-emitting element that emits UV light through the transparent cover, and the third light-emitting element is positioned symmetrically with respect to the first light-emitting element.

14. In paragraph 13, An electronic device, wherein the plurality of light-receiving elements further include a third light-receiving element and a fourth light-receiving element that detect UV unfiltered light and UV filtered light respectively emitted from the plurality of light-emitting elements and reflected by a part of the user's body, wherein the third light-receiving element is arranged at a position symmetrical with respect to the first light-receiving element, and the fourth light-receiving element is arranged at a position symmetrical with respect to the second light-receiving element.

15. In paragraph 14, An electronic device wherein the third light-emitting element is spaced a third distance from the third light-receiving element and a fourth distance from the fourth light-receiving element, wherein the fourth distance is substantially the same as the third distance.

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