Electronic device for measuring biometric signal

Abstract

Provided is an electronic device for measuring a biometric signal. The electronic device comprises: a rear glass disposed on a surface of a housing; and an optical sensor. The optical sensor may comprise: a circuit board disposed in the space so that one surface thereof faces the rear glass; a first light-emitting element disposed on the one surface of the circuit board and emitting first light in an ultraviolet wavelength range; at least one second light-emitting element disposed on the one surface of the circuit board and emitting second light in a wavelength range higher than the ultraviolet wavelength range; and a partition wall member (460) disposed on the one surface of the circuit board and spatially separating the first light-emitting element and the second light-emitting element to prevent the first light emitted from the first light-emitting element from being transmitted toward the second light-emitting element.

Description

Electronic devices that measure biosignals

[0001] The present disclosure relates to an electronic device for measuring a biosignal, and more particularly, to an electronic device including a light-emitting element and a light-receiving element for measuring a biosignal.

[0002] With the advancement of electronics, information, and communication technologies, a single electronic device is incorporating diverse functions. As electronic devices become more sophisticated and miniaturized, carrying and using them has become a common practice, and portable electronic devices are available in a variety of forms. For example, users can carry and use multiple portable electronic devices, such as smartphones, tablet PCs, smart watches, wireless earphones, and / or smart glasses.

[0003] In addition, as electronic devices become smaller and lighter, various types of electronic devices that can be worn on a user's body are emerging. In particular, wearable electronic devices can be utilized for various purposes due to their high portability and close proximity to the user's body. Wearable electronic devices may include multiple sensors (e.g., proximity sensors, temperature sensors, and biometric sensors) for measuring biometric information. Since wearable electronic devices are worn in close proximity to the user's body, they can obtain biometric information from the user's body using multiple sensors. For example, wearable electronic devices can obtain electrocardiogram (ECG), respiration, electromyography (EMG), electrooculography (EOG), electroencephalogram (EEG), blood glucose, oxygen saturation (SpO2), pulse (PPG), or body temperature, as well as various other types of biometric information mentioned above.

[0004] The above-described content is provided solely as background information to aid in understanding the embodiments of the present disclosure. No determination has been made, and no claims are made, as to whether any of the above content constitutes prior art in connection with the present disclosure.

[0005] According to one embodiment of the present disclosure, a wearable electronic device may be provided, including a housing including a first surface on which a display is arranged, a second surface opposite to the first surface, and a side surface surrounding a space between the first surface and the second surface; a rear glass disposed on the second surface of the housing; and an optical sensor for measuring a biosignal of a user of the wearable electronic device by emitting light through the rear glass, the optical sensor including: a circuit board disposed within the space such that one surface faces the rear glass; a first light-emitting element disposed on the one surface of the circuit board and emitting first light corresponding to a wavelength range of ultraviolet light; and at least one second light-emitting element disposed on the one surface of the circuit board and emitting second light in a wavelength range higher than the wavelength range of the ultraviolet light. The wearable electronic device may include at least one light-receiving element disposed on the one surface of the circuit board, the light-receiving element receiving third light generated when the user's body reacts to the first light and receiving reflected light of the second light reflected by the body. The wearable electronic device may include a partition member disposed on the one surface of the circuit board, the partition member spatially separating the first light-emitting element and the second light-emitting element to prevent the first light emitted from the first light-emitting element from being transmitted toward the second light-emitting element.

[0006] According to one embodiment, a wearable electronic device may be provided, comprising: a first light-emitting element emitting first light having a wavelength range of ultraviolet light; a second light-emitting element emitting second light having a wavelength range different from the wavelength range of the ultraviolet light; at least one light-receiving element; a memory storing instructions; and at least one processor; wherein the instructions, when executed by the wearable electronic device, cause the wearable electronic device to: control the first light-emitting element to emit the first light from the first light-emitting element, apply a reverse voltage to the second light-emitting element while the first light is emitted from the first light-emitting element, and receive a fluorescence signal generated from a body of a user who has received the first light through the at least one light-receiving element while the reverse voltage is applied. In addition, the instructions, when executed by the wearable electronic device, cause the wearable electronic device to: The instructions may be configured to stop emission of the first light from the first light emitting element by controlling the first light emitting element, emit the second light from the second light emitting element by controlling the second light emitting element, receive reflected light of the second light through the at least one light receiving element, and correct the fluorescence signal based on the reflected light. In addition, the instructions, when executed by the wearable electronic device, may cause the wearable electronic device to estimate an advanced glycation end-product of the user based on the corrected fluorescence signal.

[0007] FIG. 1 is a perspective view of the front of an electronic device according to one embodiment.

[0008] FIG. 2 is a perspective view of the rear surface of an electronic device according to one embodiment.

[0009] FIG. 3 is a perspective view of an unfolded electronic device according to one embodiment.

[0010] FIG. 4 is a drawing showing the appearance of an electronic device according to one embodiment.

[0011] FIG. 5 is a diagram illustrating an example of an optical sensor being placed in an electronic device according to one embodiment.

[0012] FIG. 6 is a drawing for explaining areas on a circuit board separated by a bulkhead member disposed on the circuit board according to one embodiment.

[0013] FIG. 7 is a drawing for explaining elements of an optical sensor arranged in a plurality of regions separated by a bulkhead member according to one embodiment.

[0014] FIG. 8 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by a partition member.

[0015] FIG. 9 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by a partition member and an opaque member on the partition member.

[0016] FIG. 10 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by an opaque portion of a partition member and a rear glass.

[0017] FIG. 11 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by an opaque portion of a partition member and a rear glass.

[0018] FIG. 12 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by a light filtering member formed on the rear glass.

[0019] FIG. 13 is a diagram illustrating an example in which a portion of the fluorescence generated by a user's body and UV light emitted from a UV LED are blocked by a light filtering member, according to one embodiment.

[0020] FIG. 14 is a diagram for explaining a voltage applied to a light-emitting element to measure a user's biosignal in one embodiment.

[0021] Fig. 15 is a graph showing the intensity of noise light generated through an LED to which a reverse voltage is applied according to one embodiment.

[0022] FIG. 16 is a flowchart of a method for an electronic device to measure a user's biosignal according to one embodiment.

[0023] FIG. 17 is a drawing showing an example of an electronic device according to one embodiment being a ring-type electronic device.

[0024] FIG. 18 is a diagram showing the arrangement of elements within an optical sensor included in a ring-shaped electronic device according to one embodiment.

[0025] FIG. 19 is a block diagram of an electronic device (1901) within a network environment (1900), according to various embodiments.

[0026] Below, embodiments of the present disclosure are described in detail with reference to the attached 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 addition, for the purpose of clearly explaining the present disclosure in the drawings, parts irrelevant to the description are omitted, and similar parts are designated with similar reference numerals throughout the specification.

[0027] The terms used in this disclosure are described as currently common terms, taking into account the functions mentioned herein. However, these terms may mean various other terms depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in this disclosure should not be interpreted solely based on their names, but rather based on the meanings of the terms and the overall content of this disclosure.

[0028] Additionally, while terms such as first, second, etc. may be used to describe various components, the components should not be limited by these terms. These terms are used to distinguish one component from another.

[0029] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the cases where the parts are "directly connected" but also the cases where the parts are "electrically connected" with other elements intervening. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather includes other components, unless otherwise stated.

[0030] The phrases “in one embodiment” and the like appearing in various places throughout this disclosure do not necessarily all refer to the same embodiment.

[0031] An embodiment of the present disclosure may be represented by functional block configurations and various processing steps. Some or all of these functional blocks may be implemented by various hardware and / or software configurations that perform specific functions. For example, the functional blocks of the present disclosure may be implemented by one or more microprocessors or by circuit configurations for a given function. Furthermore, for example, the functional blocks of the present disclosure may be implemented in various programming or scripting languages. The functional blocks may be implemented by algorithms that execute on one or more processors. Furthermore, the present disclosure may employ conventional techniques for electronic configuration, signal processing, and / or data processing. Terms such as "mechanism," "element," "means," and "configuration" may be used broadly and are not limited to mechanical and physical configurations.

[0032] Additionally, the connecting lines or connecting members between components depicted in the drawings are merely exemplary representations of functional connections and / or physical or circuit connections. In an actual device, connections between components may be represented by various functional connections, physical connections, or circuit connections that may be replaced or added.

[0033] The present disclosure will be described in detail with reference to the attached drawings below.

[0034] FIG. 1 is a perspective view of the front of an electronic device according to one embodiment, and FIG. 2 is a perspective view of the rear of the electronic device according to one embodiment.

[0035] Referring to FIGS. 1 and 2, an electronic device (100) according to one embodiment may include a housing (110) including a first side (or front side) (110A), a second side (or back side) (110B), and a side surface (110C) surrounding a space between the first side (110A) and the second side (110B), and a fastening member (150, 160) connected to at least a portion of the housing (110) and configured to detachably fasten the electronic device (100) to a part of a user's body (e.g., a wrist, an ankle, etc.). In one embodiment (not shown), the housing (110) may also refer to a structure forming a portion of the first side (110A), the second side (110B), and the side surface (110C) of FIG. 1. In one embodiment, the first side (110A) may be formed by a front plate (101) that is at least partially substantially transparent (e.g., a glass plate including various coating layers, or a polymer plate). The second side (110B) may be formed by a substantially opaque back plate (107). The back plate (107) may be formed of, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing materials. The side surface (110C) may be formed by a side bezel structure (or “side member”) (106) that is joined to the front plate (101) and the back plate (107) and includes a metal and / or a polymer. In some embodiments, the back plate (107) and the side bezel structure (106) may be formed integrally and include the same material (e.g., a metal material such as aluminum). The above-mentioned fastening member (150, 160) may be formed of various materials and shapes. The integral and multiple unit links may be formed to be mutually movable by a combination of at least two of the above-mentioned materials, such as woven fabric, leather, rubber, urethane, metal, ceramic, or a combination of the above-mentioned materials.

[0036] According to one embodiment, the electronic device (100) may include at least one of a display (120, see FIG. 3), an audio module (105, 108), a sensor module (111), and a key input device (102, 103, 104). In some embodiments, the electronic device (100) may omit at least one of the components (e.g., the key input device (102, 103, 104)) or may additionally include other components.

[0037] The display (120) may be exposed, for example, through a significant portion of the front plate (101). The shape of the display (120) may correspond to the shape of the front plate (101), and may be in various shapes such as circular, oval, or polygonal. The display (120) may be combined with or disposed adjacent to a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a fingerprint sensor.

[0038] The audio module (105, 108) may include a microphone hole (105) and a speaker hole (108). The microphone hole (105) may have a microphone disposed therein for acquiring external sounds, and in some embodiments, multiple microphones may be disposed therein to detect the direction of sounds. The speaker hole (108) may be used as an external speaker and a receiver for calls. In some embodiments, the speaker hole (108) and the microphone hole (103) may be implemented as a single hole, or a speaker may be included without the speaker hole (108) (e.g., a piezo speaker).

[0039] The sensor module (111) can generate an electric signal or data value corresponding to an internal operating state of the electronic device (100) or an external environmental state. The sensor module (111) can include, for example, a biometric sensor module (111) (e.g., an HRM sensor) disposed on the second surface (110B) of the housing (110). The electronic device (100) can further include at least one of a sensor module not shown, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0040] The key input devices (102, 103, 104) may include a wheel key (102) disposed on a first surface (110A) of the housing (110) and rotatable in at least one direction, and / or a side key button (102, 103) disposed on a side surface (110C) of the housing (110). The wheel key (102) may have a shape corresponding to the shape of the front plate (102). In one embodiment, the electronic device (100) may not include some or all of the above-mentioned key input devices (102, 103, 104), and the key input devices (102, 103, 104) that are not included may be implemented in another form, such as a soft key, on the display (120).

[0041] The fastening member (150, 160) can be detachably fastened to at least a portion of the housing (110). The fastening member (150, 160) can include one or more of a fixing member (152), a fixing member fastening hole (153), a band guide member (154), and a band fastening ring (155).

[0042] The fixing member (152) may be configured to fix the housing (110) and the fastening members (150, 160) to a part of the user's body (e.g., wrist, ankle, etc.). The fastening member fastening hole (153) may correspond to the fastening member (152) to fasten the housing (110) and the fastening members (150, 160) to a part of the user's body. The band guide member (154) may be configured to limit the range of movement of the fastening member (152) when the fastening member (152) is fastened to the fastening member fastening hole (153), thereby allowing the fastening members (150, 160) to be fastened in close contact with a part of the user's body. The band fixing ring (155) may limit the range of movement of the fastening members (150, 160) when the fastening member (152) and the fastening member fastening hole (153) are fastened.

[0043] FIG. 3 is a perspective view of an unfolded electronic device according to one embodiment.

[0044] Referring to FIG. 3, the electronic device (300) may include a side bezel structure (310), a wheel key (320) (e.g., the key input device (102) of FIGS. 1 and 2), a front plate (101), a display (120), a first antenna (350), a second antenna (355), a support member (360) (e.g., a bracket), a battery (370), a printed circuit board (380), a sealing member (390), a rear plate (393), and fastening members (395, 397) (e.g., the fastening members (150, 160) of FIGS. 1 and 2). At least one of the components of the electronic device (300) may be the same as or similar to at least one of the components of the electronic device (100) of FIG. 1 or 2, and a redundant description thereof will be omitted below. The support member (360) may be disposed inside the electronic device (300) and connected to the side bezel structure (310), or may be formed integrally with the side bezel structure (310). The support member (360) may be formed of, for example, a metallic material and / or a non-metallic (e.g., polymer) material. The support member (360) may have a display (120) coupled to one surface and a printed circuit board (380) coupled to the other surface. A processor, a memory, and / or an interface may be mounted on the printed circuit board (380). The processor may include, for example, one or more of a central processing unit, an application processor, a graphic processing unit (GPU), an application processor, a sensor processor, or a communication processor.

[0045] The memory may include, for example, volatile memory or non-volatile memory. The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and / or an audio interface. The interface may electrically or physically connect the electronic device (300) to an external electronic device, for example, and may include a USB connector, an SD card / MMC connector, or an audio connector.

[0046] The battery (370) is a device for supplying power to at least one component of the electronic device (300), and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. At least a portion of the battery (370) may be disposed substantially on the same plane as, for example, the printed circuit board (380). The battery (370) may be disposed integrally within the electronic device (100), or may be disposed detachably from the electronic device (100).

[0047] The first antenna (350) may be positioned between the display (120) and the support member (360). The first antenna (350) may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The first antenna (350) may, for example, perform short-range communication with an external device, wirelessly transmit and receive power required for charging, and transmit a magnetic-based signal including a short-range communication signal or payment data. In one embodiment, the antenna structure may be formed by a portion or a combination of the side bezel structure (310) and / or the support member (360).

[0048] The second antenna (355) may be disposed between the circuit board (380) and the back plate (393). The second antenna (355) may include, for example, a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna. The second antenna (355) may, for example, perform short-range communication with an external device, wirelessly transmit and receive power required for charging, and transmit a magnetic-based signal including a short-range communication signal or payment data. In one embodiment, the antenna structure may be formed by a portion or a combination of the side bezel structure (310) and / or the back plate (393).

[0049] A sealing member (390) may be positioned between the side bezel structure (310) and the rear plate (393). The sealing member (390) may be configured to block moisture and foreign substances from entering the space surrounded by the side bezel structure (310) and the rear plate (393) from the outside.

[0050] FIG. 4 is a drawing showing the appearance of an electronic device according to one embodiment.

[0051] Referring to FIG. 4, an electronic device (400) according to one embodiment may correspond to the electronic device (100) of FIGS. 1 and 2 and the electronic device (300) of FIG. 3. For example, the electronic device (400) may be a smart watch.

[0052] An electronic device (400) according to one embodiment may include a first side (e.g., a front side, a side on which a screen of a display (440) is displayed), a second side (e.g., a back side, a side in contact with human skin), and a third side (e.g., a side) arranged to surround a space between the first side and the second side.

[0053] According to one embodiment, the electronic device (400) may include a plurality of electrodes (410), a temperature sensor (420), an optical sensor (430), and a display (440). According to one embodiment, the plurality of electrodes (410) may include a first electrode (411) and a second electrode (412) disposed on the rear surface (e.g., the surface in contact with human skin) of the electronic device (400). Additionally, according to one embodiment, the plurality of electrodes (410) may include a third electrode (413) and a fourth electrode (414) disposed on the side surface of the electronic device (400).

[0054] According to one embodiment, the plurality of electrodes (410) may be included in at least one electrode sensor, and at least one electrode sensor may include a circuit (e.g., an integrated circuit, IC) that controls the operation of the electrode and detects a biosignal. For example, the electrode sensor may include, for example, an electrocardiograph (ECG) sensor, an electrical wearable sensor, or an electrical proximity sensor. For example, when at least two or more of the first electrode (411), the second electrode (412), the third electrode (413), or the fourth electrode (414) come into contact with the user's skin, they may be energized, and the electronic device (400) may obtain an electrical signal from a part of the user's body through the energization. The circuit for detecting a biosignal of the electronic device (400) may obtain a biosignal of the user based on the electrical signal. For example, a circuit for detecting a biosignal of an electronic device (400) may acquire a biosignal of a user based on a difference in electrostatic capacity that occurs when at least two of the first electrode (411), the second electrode (412), the third electrode (413), or the fourth electrode (414) touch the user's skin. The biosignal acquired from the electrode sensor may be provided to a processor of the electronic device (400) (e.g., the processor (1920) of FIG. 19). In addition, for example, the first electrode (411) may be an intermetallic nanoparticle electrode (INM electrode), the second electrode (412) may be a right leg drive electrode (RLD electrode), and the third electrode (413) and the fourth electrode (414) may be indium phosphide electrodes (INP electrodes), but is not limited thereto.

[0055] According to one embodiment, the temperature sensor (420) can measure the user's skin temperature or body temperature by reflecting the characteristics of electromagnetic waves radiated by an object according to its temperature. For example, the temperature sensor (420) may include a non-contact IR (infra-red) temperature sensor. For example, the temperature sensor (420) may include a temperature sensor that measures the temperature of the temperature sensor (420) because the temperature of the sensor may affect the sensing operation due to the characteristics of the non-contact temperature sensor. For example, the temperature sensor that measures the temperature of the temperature sensor (420) (e.g., the internal temperature of the electronic device (400)) may include a thermistor. For example, the object may have a temperature higher than absolute zero K (-273.15°C) and reflect electromagnetic waves of a wavelength corresponding to the temperature. As the temperature increases, the wavelength of the radiated electromagnetic waves may become shorter and the amount of radiated energy may increase. The temperature sensor (420) can detect temperature by using the Seebeck effect, in which electromotive force is generated according to the temperature difference between the hot junction and the cold junction of an internal thermopile.

[0056] According to one embodiment, the optical sensor (430) may include a plurality of light-emitting elements and a plurality of light-receiving elements. The plurality of light-emitting elements may include a plurality of LEDs corresponding to a plurality of wavelengths, and the plurality of light-receiving elements may include a plurality of PDs (Photodiodes) corresponding to a plurality of wavelengths. For example, the optical sensor (e.g., a PPG sensor) may include a plurality of LEDs and a plurality of PDs that emit and receive at least one of ultra violet (UV), blue, red, green, or infrared (IR) light.

[0057] The plurality of light-emitting elements and the plurality of light-receiving elements included in the optical sensor (430) according to one embodiment will be described in more detail in FIG. 7.

[0058] According to one embodiment, the display (440) may be positioned on a first surface (e.g., a surface on which a screen is displayed) of the electronic device (400) and may be visually exposed toward the outside of the electronic device (400) so as to be visually visible. The screen of the display (440) may have a shape corresponding to the shape of the front surface of the housing. For example, the screen of the display (440) may be formed in a circular, oval, or polygonal shape. For example, the display (440) may include a touch sensor. The electronic device (400) may identify a touch input to the display (440) through the touch sensor.

[0059] According to one embodiment, the electronic device (400) may include any type of electronic device that comes into contact with the user's body and measures the user's bio-signals. For example, the electronic device (400) may be, but is not limited to, a smartphone, a tablet PC, a PC, a smart TV, a mobile phone, a personal digital assistant (PDA), a laptop, a media player, a global positioning system (GPS) device, a digital broadcasting terminal, a kiosk, an MP3 player, a digital camera, home appliances, and other mobile or non-mobile computing devices. In addition, the electronic device (400) may be a wearable device, such as a watch, glasses, a hair band, or a ring, equipped with communication and data processing functions.

[0060] FIG. 5 is a diagram illustrating an example of an optical sensor being placed in an electronic device according to one embodiment.

[0061] Referring to FIG. 5, an optical sensor (430) according to one embodiment may include a plurality of light-emitting elements and a plurality of light-receiving elements arranged on a circuit board (450), and a partition member (460) may be arranged on the circuit board (450). In addition, the circuit board (450) may be arranged within the electronic device (400) such that one surface of the circuit board (450) on which the plurality of light-emitting elements and the plurality of light-receiving elements are arranged faces the rear glass (470) of the electronic device (400). The partition member (460) may be implemented with an opaque material that does not transmit light. When the circuit board (450) is viewed vertically (e.g., in the +z-axis direction of FIG. 1), the partition member (460) may not overlap with the plurality of light-emitting elements and the plurality of light-receiving elements on the circuit board (450).

[0062] According to one embodiment, the partition member (460) disposed on one surface of the circuit board (450) may be attached to the rear glass (470) via the adhesive member (50). The partition member (460) disposed on one surface of the circuit board (450) may be attached to the rear glass (470) so that the optical sensor (430) disposed on one surface of the circuit board (450) corresponds to an area of ​​the rear glass (470) through which light passes. According to one embodiment, the adhesive member (50) may be implemented with an opaque material that does not pass light.

[0063] According to one embodiment, a member (52) including an antenna coil may be attached to a rear glass (470) via an adhesive member (54). In this case, an opening of the member (52) including an antenna coil and an opening of the adhesive member (54) may be formed to be larger than one surface of the circuit board (450), and thus, a partition member (460) of the circuit board (450) may be attached to the rear glass (470).

[0064] FIG. 6 is a drawing for explaining areas on a circuit board separated by a bulkhead member disposed on the circuit board according to one embodiment.

[0065] Referring to FIG. 6, a partition member (460) according to one embodiment may be placed on a circuit board (450), and an area on one surface of the circuit board (450) may be divided into a plurality of areas (61, 62, 63, 64, 65, 66, 67, 68, 69) by the partition member (460). The plurality of areas (61, 62, 63, 64, 65, 66, 67, 68, 69) according to one embodiment may be spatially separated from each other on the circuit board (450).

[0066] The plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) according to one embodiment may include, for example, a first region (61), a second region (62), a third region (63), a fourth region (64), a fifth region (65), a sixth region (66), a seventh region (67), and an eighth region (68).

[0067] For example, the first region (61) may be located in the central portion of the circuit board (450). Additionally, the second region (62), the third region (63), the fourth region (64), the fifth region (65), the sixth region (66), the seventh region (67), and the eighth region (68) may surround the first region (61) and be located along the edge of the circuit board (450).

[0068] According to one embodiment, some of the plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) may be formed by openings of the bulkhead member (460), and others may be formed by concave portions at the edges of the bulkhead member (460). For example, the first region (61), the second region (62), the fourth region (64), the sixth region (66), and the eighth region (68) may be formed by the plurality of openings of the bulkhead member (460). For example, the third region (63), the fifth region (65), the seventh region (67), and the ninth region (69) may be formed by portions having a concave shape from the edges of the bulkhead member (460) toward the center of the bulkhead member (460). Accordingly, even if the size of the portion attached to the bulkhead member (460) on one side of the circuit board (450) is reduced, a plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) on one side of the circuit board (450) can be spatially separated from each other.

[0069] The partition member (460) according to one embodiment may be implemented with an opaque material that does not allow light to pass through. For example, the partition member (460) may have a black color and may include at least one material selected from the group consisting of polycarbonate, silicone, acrylonitrile butadiene styrene (ABS), polytetrafluoroethylene (PTFE), Teflon, polyamide, epoxy, thermoplastic polyurethane (TPU), and metal, but is not limited thereto.

[0070] In a plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) according to one embodiment, at least some of a plurality of light-emitting elements and a plurality of light-receiving elements included in the optical sensor (430) may be arranged, for example. The elements arranged in the plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) according to one embodiment will be described in more detail in FIG. 7.

[0071] FIG. 7 is a drawing for explaining elements of an optical sensor arranged in a plurality of regions separated by a bulkhead member according to one embodiment.

[0072] Referring to identification number 710 of FIG. 7, in a plurality of areas (61, 62, 63, 64, 65, 66, 67, 68, 69) according to one embodiment, at least some of the plurality of light-emitting elements and the plurality of light-receiving elements included in the optical sensor (430) may be arranged.

[0073] For example, at least one of a red LED, a green LED, a blue LED, or an IR LED may be arranged in the first region (61). For example, the red LED may be a light-emitting element that emits light having a wavelength within a range of about 620 nm to 720 nm. For example, the red LED may be a light-emitting element that emits light having a center wavelength of about 660 nm, but is not limited thereto. For example, the green LED may be a light-emitting element that emits light having a wavelength within a range of about 495 nm to 570 nm. For example, the green LED may be a light-emitting element that emits light having a center wavelength of about 525 nm, but is not limited thereto. For example, the blue LED may be a light-emitting element that emits light having a wavelength within a range of about 450 nm to 495 nm. For example, the blue LED may be a light-emitting element that emits light having a center wavelength of about 405 nm or 470 nm, but is not limited thereto. For example, the IR LED may be a light-emitting device that emits light having a wavelength within a range of approximately 700 nm or greater. For example, the IR LED may be a light-emitting device that emits light having a center wavelength of approximately 940 nm, but is not limited thereto.

[0074] For example, a UV LED may be placed in the second region (62), and the UV LED may be spatially separated from other elements (e.g., a red LED, a green LED, a blue LED, an IR LED, a Normal PD, and a UV cut PD) by a partition member (460). For example, the UV LED may include a light-emitting element that emits light having a wavelength within a range of about 100 nm to 400 nm, but is not limited thereto. For example, the UV LED may include a light-emitting element that emits light having a center wavelength of about 365 nm, but is not limited thereto.

[0075] For example, a Normal PD may be placed in the third region (63). The Normal PD may be, for example, a light-receiving element for receiving light having a wavelength within a range of approximately 340 nm to 980 nm.

[0076] For example, at least one of a red LED, a green LED, a blue LED, or an IR LED may be arranged in the fourth region (64). For example, the red LED may be a light-emitting element that emits light having a wavelength within a range of about 620 nm to 720 nm, the green LED may be a light-emitting element that emits light having a wavelength within a range of about 495 nm to 570 nm, the blue LED may be a light-emitting element that emits light having a wavelength within a range of about 450 nm to 495 nm, and the IR LED may be a light-emitting element that emits light having a wavelength within a range of about 700 nm or more, but is not limited thereto.

[0077] For example, a UV cut PD may be placed in the fifth region (65). The UV cut PD may be, for example, a light-receiving element that receives light of a wavelength other than at least the UV wavelength range. The UV cut PD may be, for example, a light-receiving element for receiving light having a wavelength within a range of approximately 480 nm to 980 nm, but is not limited thereto.

[0078] For example, a UV LED may be placed in a sixth region (66) opposite to the second region (62) with respect to the center of the circuit board (450), and the UV LED may be spatially separated from other elements (e.g., a red LED, a green LED, a blue LED, an IR LED, a Normal PD, and a UV cut PD) by a partition member (460). For example, the UV LED may include a light-emitting element that emits light having a wavelength within a range of about 100 nm to 400 nm, but is not limited thereto. For example, the UV LED may include a light-emitting element that emits light having a center wavelength of about 365 nm, but is not limited thereto.

[0079] For example, a Normal PD may be placed in a seventh region (67) opposite to the third region (63) with respect to the center of the circuit board (450). The Normal PD may be, for example, a light-receiving element for receiving light having a wavelength within a range of approximately 340 nm to 980 nm.

[0080] For example, at least one of a red LED, a green LED, a blue LED, or an IR LED may be arranged in an eighth region (68) opposite to the fourth region (64) with respect to the center of the circuit board (450). For example, the red LED may be a light-emitting element that emits light having a wavelength within a range of approximately 620 nm to 720 nm. For example, the red LED may be a light-emitting element that emits light having a center wavelength of approximately 660 nm, but is not limited thereto. For example, the green LED may be a light-emitting element that emits light having a wavelength within a range of approximately 495 nm to 570 nm. For example, the green LED may be a light-emitting element that emits light having a center wavelength of approximately 525 nm, but is not limited thereto. For example, the blue LED may be a light-emitting element that emits light having a wavelength within a range of approximately 450 nm to 495 nm. For example, a blue LED may be a light emitting device that emits light having a center wavelength of about 405 nm or 470 nm, but is not limited thereto. For example, an IR LED may be a light emitting device that emits light having a wavelength within a range of about 700 nm or more. For example, an IR LED may be a light emitting device that emits light having a center wavelength of about 940 nm, but is not limited thereto.

[0081] For example, a UV cut PD may be placed in the ninth region (69). The UV cut PD may be, for example, a light-receiving element that receives light of a wavelength other than at least the UV wavelength range. The UV cut PD may be, for example, a light-receiving element for receiving light having a wavelength within a range of approximately 480 nm to 980 nm, but is not limited thereto.

[0082] According to one embodiment, the electronic device (400) can irradiate UV light toward the user's skin and then measure a fluorescence signal generated when the irradiated UV light reacts with advanced glycation end-products (AGEs) in the user's skin. Advanced glycation end-products are substances generated in the process of proteins or fats being glycated by combining with sugars, and may include, for example, CEL (carboxyethyl-lysine), CML (carboxymethyl-lysin), MGH1 (methylglyoxal-derived hydroimidazolone 1), and pentosidine. Advanced glycation end-products accumulate in various parts of the human body (e.g., organs, muscles, joints, blood vessels, skin), and may be associated with health indicators related to aging, cancer, cardiovascular disease, and complications of diabetes patients.

[0083] For example, the electronic device (400) can emit UV light toward the user's body (e.g., skin) by controlling at least one of the light-emitting elements (e.g., UV LED) in the second region (62) or the light-emitting elements (e.g., UV LED) in the sixth region (66). In addition, advanced glycation end products (AGEs) in the user's body can emit a fluorescence signal in response to the UV light. According to one embodiment, the electronic device (400) can receive a fluorescence signal generated from the user's body by using at least one of the normal PDs (e.g., 63, 67) or the UV cut PDs (e.g., 65, 69) arranged on the circuit board (450).

[0084] Thereafter, the electronic device (400) can emit light of a predetermined wavelength toward the user's body (e.g., skin) by controlling at least one of a red LED, a green LED, a blue LED, or an IR LED disposed on the circuit board (450). In addition, the electronic device (400) can receive the reflected light reflected by the user's body from the emitted light using at least one of a normal PD (e.g., 63, 67) or a UV cut PD (e.g., 65, 69) disposed on the circuit board (450). The electronic device (400) can correct the fluorescence signal by taking into account the user's skin color based on the received reflected light. The electronic device (400) can estimate the user's advanced glycation end product based on the corrected fluorescence signal.

[0085] In one embodiment, in order to accurately estimate advanced glycation end products (AGEs), it is necessary to accurately separate or suppress signals other than the fluorescence signal generated from the skin. For example, when UV light is transmitted to a red LED, a blue LED, a green LED, and / or an IR LED, unnecessary fluorescence may occur in the red LED, the blue LED, the green LED, and / or the IR LED. In this case, if fluorescence occurs in the red LED, the blue LED, the green LED, and / or the IR LED due to the UV light, the fluorescence generated in the red LED, the blue LED, the green LED, and / or the IR LED may act as noise in the estimation of advanced glycation end products (AGEs). Accordingly, in one embodiment, in order to accurately estimate advanced glycation end products (AGEs), the elements of the optical sensor (430) in the electronic device (400) may be arranged to be spatially separated by a partition member (460) on the circuit board (450).

[0086] The identification number 712 of FIG. 7 is a drawing showing the AA' cross-section of the identification number 710. Referring to the identification number 712 of FIG. 7, the first region (61), the second region (62), and the sixth region (66) can be spatially separated from each other by the partition member (460) according to one embodiment. For example, only the UV LED can be arranged in the second region (62), and only the UV LED can be arranged in the sixth region (66). In addition, for example, the second region (62) where the UV LED is arranged can be separated from the first region (61) where at least one of a red LED, a green LED, a blue LED, or an IR LED is arranged by the partition member (460). In addition, for example, the sixth region (66) where the UV LED is arranged can be separated from the first region (61) where at least one of a red LED, a green LED, a blue LED, or an IR LED is arranged by the partition member (460).

[0087] For example, the electronic device (400) can control the light-emitting element (e.g., UV LED) within the sixth region (66) to cause the light-emitting element (e.g., UV LED) to emit UV light. According to one embodiment, the electronic device (400) can irradiate UV light from the light-emitting element (e.g., UV LED) within the sixth region (66) toward the user's body (e.g., skin) to measure the user's biosignal. In addition, the UV light emitted from the light-emitting element (e.g., UV LED) within the sixth region (66) can be prevented from being transmitted to at least one light-emitting element within the first region (61) by the partition member (460).

[0088] Examples of how UV light emitted from a UV LED is prevented from being transmitted to another LED by a partition member (460) according to one embodiment will be described in more detail in FIGS. 8 to 12.

[0089] FIG. 8 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by a partition member.

[0090] Referring to FIG. 8, for example, a region (80) and a region (81) may be divided by a partition member (460) on a circuit board (450). FIG. 8 is a cross-sectional view illustrated for convenience of explanation, and although FIG. 8 illustrates that a UV LED (84) is arranged in the region (80) and a green LED (85) is arranged in the region (81), the present invention is not limited thereto, and for example, the cross-sectional view of FIG. 8 may correspond to the cross-sectional view of identification number 712 of FIG. 7. For example, the region (80) may correspond to the second region (62) or the sixth region (66) of FIG. 7, and the region (81) may correspond to the first region (61), the fourth region (64), or the eighth region (68) of FIG. 7, but is not limited thereto.

[0091] For example, UV light emitted from the UV LED (84) can be prevented from being directly transmitted to other surrounding LEDs by being blocked by the first part (461) of the partition member (460) and the second part (462) of the partition member (460). For example, the UV LED (84) can be placed in the region (80), and the green LED (85) can be placed in the region (81). In addition, the UV light emitted from the UV LED (84) can be prevented from being directly transmitted to the green LED (85) by being blocked by the second part (462) of the partition member (460). The second part (462) of the partition member (460) can be a part between the UV LED (84) and the green LED (85) in the partition member. Additionally, for example, the height of the second portion (462) of the bulkhead member (460) may be greater than the height of the UV LED (84) and the height of the green LED (85).

[0092] In Fig. 8, only a green LED (85) is described as being placed within the region (81), but this is not limited thereto. At least one of a red LED, a green LED, a blue LED, or an IR LED may be placed within the region (81).

[0093] FIG. 9 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by a partition member and an opaque member on the partition member.

[0094] Referring to Fig. 9, for example, a region (80) and a region (81) may be divided by a partition member (460) on a circuit board (450). Fig. 9 is a cross-sectional view illustrated for convenience of explanation, and although Fig. 9 illustrates that a UV LED (84) is arranged in region (80) and a green LED (85) is arranged in region (81), the present invention is not limited thereto, and for example, the cross-sectional view of Fig. 9 may correspond to the cross-sectional view of identification number 712 of Fig. 7. For example, the region (80) may correspond to the second region (62) or the sixth region (66) of FIG. 7, and the region (81) may correspond to the first region (61), the fourth region (64), or the eighth region (68) of FIG. 7, but is not limited thereto. For example, a UV LED (84) may be arranged in the region (80), and a green LED (85) may be arranged in the region (81). In addition, for example, the cross-sectional view of FIG. 9 may correspond to the cross-sectional view of FIG. 8.

[0095] For example, an opaque member (90) may be placed between the partition member (460) and the rear glass (470). In addition, for example, an opaque member (90) may be placed on the partition member (460), and a rear glass (470) may be placed on the opaque member (90). For example, the opaque member (90) may be an adhesive member for attaching the partition member (460) to the rear glass (470). For example, the opaque member (90) may be the adhesive member (50) of FIG. 5.

[0096] For example, the first part (91) of the opaque member (90) may be a part disposed between the first part (461) of the bulkhead member (460) and the rear glass (470), and the second part (92) of the opaque member (90) may be a part disposed between the second part (462) of the bulkhead member (460) and the rear glass (470).

[0097] In addition, for example, UV light emitted from the UV LED (84) can be prevented from being transmitted to the green LED (85) by being blocked by the second part (462) of the partition member (460) and the second part (92) of the opaque member (90). In this case, when one surface of the circuit board (450) is viewed, the second part (92) of the opaque member (90) can at least partially overlap the second part (462) of the partition member (460). In addition, for example, the width (d1) of the second part (92) of the opaque member (90) can be larger than the width (d2) of the second part (462) of the partition member (460).

[0098] For example, among the UV light emitted from the UV LED (84), some of the UV light (95) may be sequentially reflected by the user's body (97) and the second part (92) of the opaque member (90) within the rear glass (470). Some of the UV light (95) may be attenuated by being reflected multiple times by the user's body (97) and the second part (92) of the opaque member (90). Accordingly, some of the UV light (95) may be prevented by the opaque member (90) from being reflected by the user's body (97) and transmitted to the green LED (85).

[0099] In Fig. 9, only a green LED (85) is described as being placed within the region (81), but this is not limited thereto. At least one of a red LED, a green LED, a blue LED, or an IR LED may be placed within the region (81).

[0100] FIG. 10 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by an opaque portion of a partition member and a rear glass.

[0101] Referring to FIG. 10, a portion (e.g., 471) of the rear glass (470) is formed to be opaque, thereby preventing light emitted from a light-emitting element (e.g., 84) disposed in one area (e.g., 80) of the circuit board (450) from being transmitted to another light-emitting element (e.g., 85) disposed in another area (e.g., 81).

[0102] For example, on a circuit board (450), a region (80) and a region (81) may be divided by a partition member (460). FIG. 10 is a cross-sectional view illustrated for convenience of explanation, and in FIG. 10, a UV LED (84) is arranged in a region (80) and a green LED (85) is arranged in a region (81), but the present invention is not limited thereto, and for example, the cross-sectional view of FIG. 10 may correspond to the cross-sectional view of identification number 712 of FIG. 7. For example, the region (80) may correspond to the second region (62) or the sixth region (66) of FIG. 7, and the region (81) may correspond to the first region (61), the fourth region (64), or the eighth region (68) of FIG. 7, but is not limited thereto. In addition, for example, a UV LED (84) may be arranged in the region (80), and a green LED (85) may be arranged in the region (81).

[0103] For example, a portion (471) of the rear glass (470) that at least partially overlaps the second portion (462) of the partition member (460) may be formed opaque. The width (d3) of the opaque portion (471) of the rear glass (470) may correspond to the width (d2) of the second portion (462) of the partition member (460). For example, the width (d3) of the opaque portion (471) of the rear glass (470) may be substantially the same as the width (d2) of the second portion (462) of the partition member (460).

[0104] Additionally, for example, a UV LED (84) may be placed within the region (80), and a green LED (85) may be placed within the region (81). Additionally, UV light emitted from the UV LED (84) may be prevented from being transmitted to the green LED (85) by being blocked by the second portion (462) of the partition member (460) and the opaque portion (471) of the rear glass (470).

[0105] Also, for example, the first part (91) of the opaque member (90) may be a part disposed between the first part (461) of the partition member (460) and the rear glass (470), and the third part (93) of the opaque member (90) may be a part disposed between the third part (463) of the partition member (460) and the rear glass (470). For example, the first part (91) of the opaque member (90) may prevent light emitted from the UV LED (84) from being transmitted to other LEDs (not shown) in other areas, and the third part (93) of the opaque member (90) may prevent light emitted from other UV LEDs (not shown) from being transmitted to the green LED (450).

[0106] According to one embodiment, even when the height of the partition member (260) is formed low because it is difficult to secure sufficient internal space of the electronic device (400), the UV light emitted from the UV LED (84) can be effectively prevented from being transmitted to the green LED (85) by forming an opaque portion (471) on the rear glass (470).

[0107] In Fig. 10, only a green LED (85) is described as being placed within the region (81), but this is not limited thereto. At least one of a red LED, a green LED, a blue LED, or an IR LED may be placed within the region (81).

[0108] In Fig. 10, for convenience of explanation, it is described that the opaque portion (471) is formed only in the portion corresponding to the second portion (462) of the partition member (460) in the rear glass (470), but this is not limited thereto. Portions corresponding to other portions of the partition member (460) in the rear glass (470) may also be formed opaque. For example, portions of the rear glass (470) corresponding to portions of the first portion (461) and the third portion (463) of the partition member (460) may be formed opaque.

[0109] FIG. 11 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by an opaque portion of a partition member and a rear glass.

[0110] Referring to FIG. 11, a portion (471) of the rear glass (470) that at least partially overlaps the second portion (462) of the partition member (460) may be formed opaque. Compared to the embodiment of FIG. 10, in the embodiment of FIG. 11, the width (d3) of the opaque portion (471) of the rear glass (470) may be formed to be larger than the width (d2) of the second portion (462) of the partition member (460).

[0111] Also, for example, the first part (91) of the opaque member (90) may be a part disposed between the first part (461) of the partition member (460) and the rear glass (470), and the third part (93) of the opaque member (90) may be a part disposed between the third part (463) of the partition member (460) and the rear glass (470). For example, the first part (91) of the opaque member (90) may prevent light emitted from the UV LED (84) from being transmitted to other LEDs (not shown) in other areas, and the third part (93) of the opaque member (90) may prevent light emitted from other UV LEDs (not shown) from being transmitted to the green LED (450).

[0112] FIG. 12 is a drawing showing an example in which light emitted from a light emitting element placed in one area of ​​a circuit board according to one embodiment is prevented from being transmitted to another light emitting element placed in another area by a light filtering member formed on the rear glass.

[0113] Referring to FIG. 12, for example, a region (80) and a region (81) may be divided by a partition member (460) on a circuit board (450). For example, the region (80) may correspond to the second region (62) or the sixth region (66) of FIG. 7, and the region (81) may correspond to the first region (61), the fourth region (64), or the eighth region (68) of FIG. 7, but is not limited thereto. In addition, for example, a UV LED (84) may be arranged in the region (80), and a green LED (85) may be arranged in the region (81).

[0114] For example, an opaque member (90) may be placed between the partition member (460) and the rear glass (470). In addition, for example, an opaque member (90) may be placed on the partition member (460), and a rear glass (470) may be placed on the opaque member (90). For example, the opaque member (90) may be an adhesive member for attaching the partition member (460) to the rear glass (470). For example, the opaque member (90) may be the adhesive member (50) of FIG. 5.

[0115] According to one embodiment, for example, a light filtering member (130) may be disposed on a surface facing the green LED (85) in a portion corresponding to the green LED (85) of the rear glass (470). For example, a light filtering member (130) may be disposed in an area between a second portion (92) and a third portion (93) of an opaque member (90) in a surface facing the circuit board (450) of the rear glass (470).

[0116] According to one embodiment, the light filtering member (130) may be a member that blocks light of a specified wavelength and transmits light of a specified wavelength. For example, the light filtering member (130) may be a member that blocks light of a wavelength of about 500 nm or less and transmits light of a wavelength greater than about 500 nm. Accordingly, even if UV light emitted from the UV LED (84) is reflected by the user's body and directed toward the area (81) where the green LED (85) is disposed, the UV light directed toward the area (81) is filtered by the light filtering member (130), thereby preventing the UV light directed toward the area (81) from being transmitted to the green LED (85).

[0117] According to one embodiment, a light filtering member (130) may be formed on the rear glass (470) by coating a material capable of blocking light of a predetermined wavelength on the rear glass (470). For example, the light filtering member (130) may be formed by coating a material including SiO2 and Nb2O5 on the rear glass (470). For example, the material including SiO2 and Nb2O5 may be coated on the rear glass (470) by a sputtering method.

[0118] According to one embodiment, a light filtering member (130) may be formed on the rear glass (470) by attaching a film containing a material capable of blocking light of a predetermined wavelength to the rear glass (470).

[0119] Although the light filtering member (130) is described as being formed on the rear glass (470) in FIG. 12, it is not limited thereto. For example, the light filtering member (not shown) may be formed on the outer surface of the green LED (85). In this case, the light filtering member (not shown) may be formed by coating a material including, for example, SiO2 and SiN on the outer surface of the green LED (85). For example, the material including SiO2 and SiN may be coated on the outer surface of the green LED (85) by thermal evaporation.

[0120] In Fig. 12, only a green LED (85) is described as being placed within the region (81), but this is not limited thereto. At least one of a red LED, a green LED, a blue LED, or an IR LED may be placed within the region (81).

[0121] In Fig. 12, for convenience of explanation, it is described that the light filtering member (130) is formed in a portion corresponding to the second portion (92) and the third portion (93) of the opaque member (90) in the rear glass (470), but it is not limited thereto. For example, when the opaque member (90) is not disposed, the light filtering member (130) may be formed in a portion corresponding to the second portion (462) and the third portion (463) of the partition member (460) in the rear glass (470).

[0122] In Fig. 12, for convenience of explanation, it is described that the rear glass (470) does not have an opaque portion formed therein, but this is not limited thereto. For example, a portion of the rear glass (470) that at least partially overlaps the second portion (462) of the bulkhead member (460) (e.g., portion (471) of Figs. 10 and 11) may be formed opaque.

[0123] FIG. 13 is a diagram illustrating an example in which a portion of the fluorescence generated by a user's body and UV light emitted from a UV LED are blocked by a light filtering member, according to one embodiment.

[0124] Referring to Fig. 13, according to one embodiment, the horizontal axis of the graph of Fig. 13 may be an axis representing the wavelength of light, and the vertical axis may be an axis representing the intensity of light. For example, referring to Fig. 13, the UV LED may be a light-emitting element for emitting UV light (13-1) in a wavelength range of approximately 320 nm to 365 nm. For example, the peak wavelength of the UV light may be included in a range of 320 nm to 365 nm.

[0125] For example, when UV light is irradiated onto the user's skin, the irradiated UV light can react with advanced glycation end products (AGEs) in the user's skin to generate a fluorescent signal (13-2), and the electronic device (400) can estimate the user's AGEs by measuring the fluorescent signal (13-2) generated from the user's skin.

[0126] However, for example, if UV light is directly transmitted to the green LED, blue LED, and / or violet LED within the optical sensor (430), the transmitted UV light may cause the green LED, blue LED, and / or violet LED to generate noise light in response to the UV light, and the noise light may act as noise in estimating the user's advanced glycation end products. For example, the noise light may act as noise in the fluorescence signal generated by the user's body in response to the UV light.

[0127] In addition, the light filtering member (130) can block light having a wavelength of about 480 nm or less, for example, and can transmit light having a wavelength (13-6) of about 480 nm or more. For example, the light filtering member (130) can be disposed on a green LED (e.g., a green LED disposed in the first region (61), the fourth region (64), the eighth region (68)), and blocks (filters) UV light of the UV LED and transmits light (13-5) of the green LED, thereby preventing UV light from being transmitted to the green LED while allowing light of the green LED to be irradiated onto the user's body. In addition, light emitted from the green LED is reflected by the user's skin, and the reflected light can be used to correct a fluorescence signal based on the user's skin color.

[0128] Accordingly, according to one embodiment, the bulkhead member (460), the opaque member (90) and / or the opaque portion of the rear glass (470) and / or the light filtering member (130) can effectively prevent UV light from being transmitted to other LEDs by spatially isolating the UV LED from other LEDs.

[0129] FIG. 14 is a diagram for explaining a voltage applied to a light-emitting element to measure a user's biosignal in one embodiment.

[0130] Referring to FIG. 14, for example, voltages may be applied to the UV LED and the green LED. For example, the electronic device (400) may apply voltage to the UV LED (84) on the circuit board (450) to emit UV light from the UV LED (84). Additionally, while UV light is emitted through the UV LED (84), the electronic device (400) may apply a reverse voltage to the green LED (85). According to one embodiment, even if UV light is transmitted to the green LED (85) while a reverse voltage is applied to the green LED (85), the amount of noise light generated from the green LED in response to the UV light may be reduced.

[0131] Fig. 15 is a graph showing the intensity of noise light generated through an LED to which a reverse voltage is applied according to one embodiment.

[0132] Referring to FIG. 15, according to one embodiment, the horizontal axis of the graph of FIG. 15 may represent the wavelength of noise light generated from an LED due to UV light, and the vertical axis may represent the intensity of the noise light. For example, when UV light is transmitted to a green LED, the green LED may generate noise light as a fluorescence signal in response to the UV light. For example, as the magnitude of the reverse voltage applied to the green LED increases, the intensity of the noise light generated from the green LED may decrease.

[0133] FIG. 16 is a flowchart of a method for an electronic device to measure a user's biosignal according to one embodiment.

[0134] In operation 1600, the electronic device (400) may receive a user input for measuring a biosignal. The electronic device (400) may execute an application for measuring a user's biosignal and may receive a user input for measuring the user's biosignal through a graphical user interface (GUI) of the application. According to one embodiment, the electronic device (400) may receive a user input for measuring a biosignal using UV light emitted through a UV LED. For example, the electronic device (400) may receive a user input for measuring the user's advanced glycation end products.

[0135] In operation 1610, the electronic device (400) can drive the first light-emitting element to emit the first light. The electronic device (400) can cause the first light to be emitted from the first light-emitting element by applying a constant voltage to the first light-emitting element. For example, the first light-emitting element can be an LED included in the optical sensor (430) of the electronic device (400). For example, the first light-emitting element can be a UV LED disposed on the circuit board (450) of the optical sensor (430). For example, the UV LED (e.g., the UV LED arranged in the second region (62), the UV LED arranged in the sixth region (66)) can be spatially isolated from other LEDs (e.g., the LEDs arranged in the first region (61), the fourth region (64), the eighth region (68)) and the light-receiving elements (e.g., the normal PD arranged in the third region (63) and the seventh region (67), the UV cut PD arranged in the third region (63) and the ninth region (69)) of the optical sensor (430) by a partition member on the circuit board (450). In this case, for example, UV light from the UV LED can be irradiated toward the skin of a user wearing the electronic device (400).

[0136] In operation 1620, the electronic device (400) may apply a reverse voltage to the second light-emitting element. The electronic device (400) may apply the reverse voltage to the second light-emitting element while the first light is emitted from the first light-emitting element. For example, the second light-emitting element may be an LED included in the optical sensor (430) of the electronic device (400). For example, the second light-emitting element may be a green LED disposed on the circuit board (450) of the optical sensor (430). However, the present invention is not limited thereto, and the second light-emitting element may include, for example, at least one of a blue LED, a violet LED, a green LED, a red LED, or an IR LED.

[0137] In one embodiment, the second light-emitting element can be spatially isolated from the first light-emitting element. For example, the second light-emitting element can be spatially separated from the first light-emitting element (e.g., a UV LED) by a partition member (460) on the circuit board (450).

[0138] According to one embodiment, an opaque member (90) may be disposed on a partition member (460) between the first light-emitting element and the second light-emitting element. According to one embodiment, a portion of the rear glass (470) on the partition member (460) may be formed opaque. According to one embodiment, a light filtering member (130) may be disposed on a portion of the rear glass (470) on the second light-emitting element.

[0139] Accordingly, light (e.g., UV light) emitted from the first light-emitting element (e.g., UV LED) can be prevented from being transmitted to the second light-emitting element by the partition member (460). In addition, reflected light emitted from the first light-emitting element (e.g., UV LED) and reflected by the user's skin can be prevented from being transmitted to the second light-emitting element. In addition, even if reflected light emitted from the first light-emitting element (e.g., UV LED) and reflected by the user's skin is transmitted to the second light-emitting element, the intensity of noise light generated by the second light-emitting element can be reduced by applying a reverse voltage to the second light-emitting element.

[0140] In operation 1630, the electronic device (400) can measure a fluorescent signal generated from the user's body by the first light. The electronic device (400) can receive the fluorescent signal generated from the user's body through the light-receiving element of the optical sensor (430). As the advanced glycation end products (AGEs) in the user's skin react to the UV light irradiated toward the user's body, a fluorescent signal can be generated by the advanced glycation end products (AGEs) in the user's skin, and the electronic device (400) can measure the generated fluorescent signal.

[0141] At operation 1640, the electronic device (400) may turn off the driving of the first light-emitting element. In one embodiment, the electronic device (400) may turn off the driving of the first light-emitting element by stopping the application of the constant voltage to the first light-emitting element. For example, the electronic device (400) may stop the application of the constant voltage to the UV LED.

[0142] In operation 1650, the electronic device (400) may apply a constant voltage to the second light-emitting element. According to one embodiment, the electronic device (400) may cause light to be emitted from the second light-emitting element by applying a constant voltage to the second light-emitting element. For example, the electronic device (400) may apply a constant voltage to at least one of a blue LED, a violet LED, a green LED, a red LED, or an IR LED, thereby irradiating light toward the user's skin.

[0143] In operation 1660, the electronic device (400) may correct the measured fluorescence signal. According to one embodiment, the electronic device (400) may measure the reflected light reflected from the user's skin by the light emitted from the second light-emitting element, and correct the fluorescence signal measured in operation 1630 based on the measured reflected light. The reflected light measured from the user's skin may include information about the user's skin color, and the electronic device (400) may correct the fluorescence signal by taking the user's skin color into consideration based on the measured reflected light. In addition, the electronic device (400) may estimate the user's advanced glycation end products based on the corrected fluorescence signal.

[0144] FIG. 17 is a drawing showing an example of an electronic device according to one embodiment being a ring-type electronic device.

[0145] Referring to FIG. 17, an electronic device (500), which is a ring-type electronic device, may include an optical sensor for measuring a user's biosignal. According to one embodiment, the optical sensor may include at least one light-emitting element (170), at least one first light-receiving element (172), and at least one second light-receiving element (174). For example, the at least one light-emitting element (170) may include at least one of a UV LED, a blue LED, a violet LED, a green LED, a red LED, or an IR LED.

[0146] FIG. 18 is a diagram showing the arrangement of elements within an optical sensor included in a ring-shaped electronic device according to one embodiment.

[0147] Referring to FIG. 18, the light-emitting element (170) of the electronic device (500) according to one embodiment may include a plurality of LEDs. For example, the light-emitting element (170) of the electronic device (500) may include a blue LED (170-1), a green LED (170-2), a red LED (170-3), and a UV LED (170-4).

[0148] In one embodiment, the UV LED (170-4) may be spatially separated from other LEDs (e.g., blue LED (170-1), green LED (170-2), and red LED (170-3)) by a bulkhead member (180).

[0149] In one embodiment, the blue LED (170-1), the green LED (170-2), and the red LED (170-3) may be surrounded by the first partition member (180-1). For example, the blue LED (170-1), the green LED (170-2), and the red LED (170-3) may be spatially isolated by the first partition member (180-1). For example, the blue LED (170-1), the green LED (170-2), and the red LED (170-3) may be spatially separated from the UV LED (170-4) by the first partition member (180-1). For example, the blue LED (170-1), the green LED (170-2), and the red LED (170-3) may be arranged together within the first partition member (180-2).

[0150] Additionally, a light filtering member (182) (e.g., a light filtering member (130)) may be disposed on the blue LED (170-1), the green LED (170-2), and the red LED (170-3). For example, the light filtering member (182) may be disposed on the opening of the first partition member (180-1). For example, the light filtering member (182) may be formed on one surface of a housing (not shown) corresponding to the blue LED (170-1), the green LED (170-2), and the red LED (170-3). For example, the light filtering member (182) may be formed by coating the lower surface of the housing (not shown).

[0151] In one embodiment, the UV LED (170-4) may be surrounded by the second partition member (180-2). For example, the UV LED (170-4) may be spatially isolated by the second partition member (180-2). For example, the UV LED (170-4) may be spatially isolated from other LEDs (e.g., the blue LED (170-1), the green LED (170-2), and the red LED (170-3)) by the second partition member (180-2). For example, only the UV LED (170-4) may be placed within the second partition member (180-2).

[0152] According to one embodiment, the light-emitting element (170) of the electronic device (500) may be disposed between the first light-receiving element (172) and the second light-receiving element (174). According to one embodiment, one of the first light-receiving element (172) and the second light-receiving element (174) may be a normal PD and the other may be a UV cut PD.

[0153] According to one embodiment, in the measurement of a biosignal through a biosensor (e.g., an antioxidant sensor, etc.) using a plurality of LEDs, one embodiment of the present disclosure can be applied to suppress interference of noise light generated from other LEDs by UV light from a UV LED.

[0154] According to one embodiment, even when measuring HbA1C (glycated hemoglobin), etc., multiple LEDs may be used, and accordingly, one embodiment of the present disclosure may be applied.

[0155] According to one embodiment, even when the color of an LED in an electronic device (400) is added, an embodiment of the present disclosure can be applied to prevent the generation of noise light that interferes with existing LEDs.

[0156] According to one embodiment, the partition structure and / or filter structure according to one embodiment of the present disclosure may be applied to light sources of other wavelength bands in addition to the LED light sources mentioned in the present document to prevent noise light from being generated by UV light.

[0157] Additionally, the shape of the bulkhead structure according to one embodiment is not limited to the shape described above. For example, the bulkhead structure may be implemented in various forms, such as a support member, film, tape, etc., and may include any form of a structure that functionally prevents the transmission of UV light.

[0158] FIG. 19 is a block diagram of an electronic device (1901) within a network environment (1900) according to various embodiments. Referring to FIG. 19 , in the network environment (1900), the electronic device (1901) may communicate with the electronic device (1902) via a first network (1998) (e.g., a short-range wireless communication network), or may communicate with the electronic device (1904) or a server (1908) via a second network (1999) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (1901) may communicate with the electronic device (1904) via the server (1908). According to one embodiment, the electronic device (1901) may include a processor (1920), a memory (1930), an input module (1950), an audio output module (1955), a display module (1960), an audio module (1970), a sensor module (1976), an interface (1977), a connection terminal (1978), a haptic module (1979), a camera module (1980), a power management module (1988), a battery (1989), a communication module (1990), a subscriber identification module (1996), or an antenna module (1997). In some embodiments, the electronic device (1901) may omit at least one of these components (e.g., the connection terminal (1978)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (1976), camera module (1980), or antenna module (1997)) may be integrated into a single component (e.g., display module (1960)).

[0159] The processor (1920) may control at least one other component (e.g., a hardware or software component) of the electronic device (1901) connected to the processor (1920) by executing, for example, software (e.g., a program (1940)), and may perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (1920) may store commands or data received from other components (e.g., a sensor module (1976) or a communication module (1990)) in a volatile memory (1932), process the commands or data stored in the volatile memory (1932), and store result data in a non-volatile memory (1934). According to one embodiment, the processor (1920) may include a main processor (1921) (e.g., a central processing unit or an application processor) or a secondary processor (1923) (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 with the main processor (1921). For example, when the electronic device (1901) includes the main processor (1921) and the secondary processor (1923), the secondary processor (1923) may be configured to use less power than the main processor (1921) or to be specialized for a given function. The secondary processor (1923) may be implemented separately from the main processor (1921) or as a part thereof.

[0160] The auxiliary processor (1923) may control at least a portion of functions or states associated with at least one component (e.g., a display module (1960), a sensor module (1976), or a communication module (1990)) of the electronic device (1901), for example, on behalf of the main processor (1921) while the main processor (1921) is in an inactive (e.g., sleep) state, or together with the main processor (1921) while the main processor (1921) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (1923) (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 (1980) or a communication module (1990)). In one embodiment, the auxiliary processor (1923) (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 (1901) where the artificial intelligence is performed, or can be performed through a separate server (e.g., server (1908)). 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.

[0161] The memory (1930) can store various data used by at least one component (e.g., the processor (1920) or the sensor module (1976)) of the electronic device (1901). The data can include, for example, software (e.g., the program (1940)) and input data or output data for commands related thereto. The memory (1930) can include volatile memory (1932) or non-volatile memory (1934).

[0162] The program (1940) may be stored as software in memory (1930) and may include, for example, an operating system (1942), middleware (1944), or an application (1946).

[0163] The input module (1950) can receive commands or data to be used in a component of the electronic device (1901) (e.g., a processor (1920)) from an external source (e.g., a user) of the electronic device (1901). The input module (1950) can include, for example, a microphone, a mouse, a keyboard, keys (e.g., buttons), or a digital pen (e.g., a stylus pen).

[0164] The audio output module (1955) can output audio signals to the outside of the electronic device (1901). The audio output module (1955) 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 embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0165] The display module (1960) can visually provide information to an external party (e.g., a user) of the electronic device (1901). The display module (1960) may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling the device. In one embodiment, the display module (1960) 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.

[0166] The audio module (1970) can convert sound into an electrical signal, or vice versa. According to one embodiment, the audio module (1970) can acquire sound through the input module (1950), output sound through the sound output module (1955), or an external electronic device (e.g., electronic device (1902)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (1901).

[0167] The sensor module (1976) can detect the operating status (e.g., power or temperature) of the electronic device (1901) 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 embodiment, the sensor module (1976) 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.

[0168] The interface (1977) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (1901) with an external electronic device (e.g., the electronic device (1902)). In one embodiment, the interface (1977) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0169] The connection terminal (1978) may include a connector through which the electronic device (1901) may be physically connected to an external electronic device (e.g., the electronic device (1902)). In one embodiment, the connection terminal (1978) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0170] A haptic module (1979) 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 embodiment, the haptic module (1979) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0171] The camera module (1980) can capture still images and moving images. In one embodiment, the camera module (1980) may include one or more lenses, image sensors, image signal processors, or flashes.

[0172] The power management module (1988) can manage the power supplied to the electronic device (1901). According to one embodiment, the power management module (1988) can be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

[0173] A battery (1989) may power at least one component of the electronic device (1901). In one embodiment, the battery (1989) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0174] The communication module (1990) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (1901) and an external electronic device (e.g., electronic device (1902), electronic device (1904), or server (1908)), and the performance of communication through the established communication channel. The communication module (1990) may operate independently from the processor (1920) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (1990) may include a wireless communication module (1992) (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 (1994) (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with an external electronic device (1904) via a first network (1998) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (1999) (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 local area network or a wide area network)). These various types of communication modules may 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 (1992) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (1996) to identify or authenticate the electronic device (1901) within a communication network such as the first network (1998) or the second network (1999).

[0175] The wireless communication module (1992) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimizing terminal power and connecting multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (1992) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (1992) may support various technologies for securing performance in high frequency bands, 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 (1992) may support various requirements specified in the electronic device (1901), an external electronic device (e.g., the electronic device (1904)), or a network system (e.g., the second network (1999)). According to one embodiment, the wireless communication module (1992) 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.

[0176] The antenna module (1997) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (1997) 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 embodiment, the antenna module (1997) 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 (1998) or the second network (1999), may be selected from the plurality of antennas by, for example, the communication module (1990). A signal or power may be transmitted or received between the communication module (1990) and the external electronic device via the at least one selected antenna. In some embodiments, 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 (1997).

[0177] According to various embodiments, the antenna module (1997) may form a mmWave antenna module. In one embodiment, 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.

[0178] 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)).

[0179] According to one embodiment, commands or data may be transmitted or received between the electronic device (1901) and an external electronic device (1904) via a server (1908) connected to a second network (1999). Each of the external electronic devices (1902 or 1904) may be the same or a different type of device as the electronic device (1901). According to one embodiment, all or part of the operations executed in the electronic device (1901) may be executed in one or more of the external electronic devices (1902, 1904, or 1908). For example, when the electronic device (1901) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (1901) 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 additional functions or services related to the request, and transmit the result of the execution to the electronic device (1901). The electronic device (1901) 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 (1901) may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device (1904) may include an Internet of Things (IoT) device. The server (1908) may be an intelligent server utilizing machine learning and / or a neural network.In one embodiment, an external electronic device (1904) or server (1908) may be included within the second network (1999). The electronic device (1901) may be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology and IoT-related technology.

[0180] According to one embodiment, the electronic device (1901) may correspond to the electronic devices (100, 300, 400, 500) of FIGS. 1 to 18. In addition, for example, the electronic device (1901) may include an optical sensor (430) and may perform the operations of the electronic devices (100, 200, 400, 500) of FIGS. 1 to 18.

[0181] The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary knowledge in the technical field to which the present disclosure pertains.

[0182] According to one embodiment of the present disclosure, a wearable electronic device (400) comprises: a housing (110) including a first surface on which a display is arranged, a second surface opposite to the first surface, and a side surface surrounding a space between the first surface and the second surface; a rear glass (470) arranged on the second surface of the housing; and an optical sensor (430) that measures a biosignal of a user of the wearable electronic device by emitting light through the rear glass, the optical sensor comprising: a circuit board (450) arranged within the space such that one surface faces the rear glass; a first light-emitting element arranged on the one surface of the circuit board and emitting first light corresponding to a wavelength range of ultraviolet light; at least one second light-emitting element arranged on the one surface of the circuit board and emitting second light in a wavelength range higher than the wavelength range of the ultraviolet light; It may include at least one light-receiving element disposed on the one surface of the circuit board, which receives third light generated when the user's body reacts to the first light, and receives reflected light of the second light reflected by the body; and a partition member (460) disposed on the one surface of the circuit board, which spatially separates the first light-emitting element and the second light-emitting element to prevent the first light emitted from the first light-emitting element from being transmitted toward the second light-emitting element.

[0183] In one embodiment, the first light-emitting element may include a UV LED, and the second light-emitting element may include at least one of a red LED, a green LED, a blue LED, or an IR LED.

[0184] In one embodiment, the bulkhead member may be formed of an opaque material that blocks the first light from passing through.

[0185] According to one embodiment, the height of the partition member between the first light-emitting element and the second light-emitting element may be higher than the height of the first light-emitting element and the height of the second light-emitting element.

[0186] According to one embodiment, the wearable electronic device further includes an opaque adhesive member disposed between the partition member and the rear glass, wherein the partition member can be attached to the rear plate by the opaque adhesive member.

[0187] According to one embodiment, the shape of the opaque adhesive member corresponds at least partially to the shape of the partition member, and the opaque adhesive member can block transmission of the first light.

[0188] In one embodiment, when the circuit board is viewed vertically, the opaque adhesive member may at least partially overlap the bulkhead member.

[0189] In one embodiment, when the circuit board is viewed vertically, the width of the opaque adhesive member may be greater than the width of the bulkhead member.

[0190] According to one embodiment, when the circuit board is viewed vertically, a first portion of the rear glass overlapping the bulkhead member may be formed to be opaque.

[0191] According to one embodiment, the wearable electronic device may further include a light filtering member disposed on a second portion of the rear glass corresponding to an area where the second light-emitting element of the circuit board is disposed, the light filtering member filtering the first light.

[0192] According to one embodiment, the light filtering member can be formed by coating a material for filtering light in the wavelength range of ultraviolet rays on a surface of the second portion of the rear glass facing the circuit board.

[0193] According to one embodiment, the light filtering member may include SiO2 and Nb2O5.

[0194] According to one embodiment, the wearable electronic device may further include another light filtering member disposed on the second light emitting element to filter the first light.

[0195] According to one embodiment, the other light filtering member can be formed by coating an outer surface of the second light emitting element with a material for filtering light in the wavelength range of ultraviolet rays.

[0196] In one embodiment, the other light filtering member may include SiO2 and SiN.

[0197] According to one embodiment, the second light-emitting element may be disposed at a central portion of the circuit board, and the first light-emitting element may be disposed at an edge portion of the circuit board.

[0198] According to one embodiment, the wearable electronic device further includes a memory storing instructions; one or more processors; wherein the instructions, when executed by the wearable electronic device, cause the wearable electronic device to: control the first light-emitting element to emit the first light from the first light-emitting element, receive the third light through the at least one light-receiving element, control the second light-emitting element to emit the second light from the second light-emitting element, receive the reflected light of the second light through the at least one light-receiving element, and correct the advanced glycation end-product of the user estimated based on the third light based on the reflected light of the second light.

[0199] In one embodiment, the instructions, when executed by the wearable electronic device, may cause the wearable electronic device to apply a reverse voltage to the second light-emitting element while the first light is emitted from the first light-emitting element.

[0200] In one embodiment, the instructions, when executed by the wearable electronic device, may cause the wearable electronic device to apply a constant voltage to the second light-emitting element as the emission of the first light from the first light-emitting element ceases.

[0201] According to one embodiment, a wearable electronic device includes a first light-emitting element emitting first light having a wavelength range of ultraviolet light; a second light-emitting element emitting second light having a wavelength range different from the wavelength range of the ultraviolet light; at least one light-receiving element; a memory storing instructions; and one or more processors; wherein the instructions, when executed by the wearable electronic device, cause the wearable electronic device to: By controlling the first light-emitting element, the first light can be emitted from the first light-emitting element, and while the first light is emitted from the first light-emitting element, a reverse voltage can be applied to the second light-emitting element, and while the reverse voltage is applied, a fluorescent signal generated from the body of a user who has received the first light through the at least one light-receiving element can be received, by controlling the first light-emitting element, the emission of the first light from the first light-emitting element can be stopped, the second light can be emitted from the second light-emitting element by controlling the second light-emitting element, a reflected light of the second light can be received through the at least one light-receiving element, the fluorescent signal can be corrected based on the reflected light, and an advanced glycation end-product of the user can be estimated based on the corrected fluorescent signal.

[0202] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned will be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains.

[0203] 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.

[0204] 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 one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), 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.

[0205] 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).

[0206] Various embodiments of the present document may be implemented as software (e.g., a program (1940)) including one or more instructions stored in a storage medium (e.g., an internal memory (1936) or an external memory (1938)) readable by a machine (e.g., an electronic device (1901)). For example, a processor (e.g., a processor (1920)) of the machine (e.g., an electronic device (1901)) 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.

[0207] 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.

[0208] 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 separated and placed 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.

Claims

1. In a wearable electronic device (400), A housing (110) comprising a first surface on which a display is arranged, a second surface opposite to the first surface, and a side surface surrounding a space between the first surface and the second surface; A rear glass (470) disposed on the second surface of the housing; and An optical sensor (430) that measures a user's bio-signal of the wearable electronic device by emitting light through the rear glass; Includes, The above optical sensor, A circuit board (450) arranged within the space so that one side faces the rear glass; A first light-emitting element disposed on the one surface of the circuit board and emitting a first light corresponding to a wavelength range of ultraviolet rays; At least one second light-emitting element disposed on the one surface of the circuit board and emitting second light of a wavelength range higher than the wavelength range of the ultraviolet rays; At least one light receiving element disposed on the one surface of the circuit board, the light receiving element receiving a third light generated by the user's body reacting to the first light and receiving a reflection light of the second light reflected by the body; A partition member (460) disposed on the one surface of the circuit board and spatially separating the first light-emitting element and the second light-emitting element to prevent the first light emitted from the first light-emitting element from being transmitted toward the second light-emitting element; A wearable electronic device comprising:

2. In paragraph 1, The above first light-emitting element includes a UV LED, A wearable electronic device, wherein the second light-emitting element comprises at least one of a red LED, a green LED, a blue LED, or an IR LED.

3. In paragraph 1, A wearable electronic device, wherein the above-mentioned bulkhead member is formed of an opaque material that blocks the transmission of the first light.

4. In paragraph 1, A wearable electronic device, wherein the height of the partition member between the first light-emitting element and the second light-emitting element is higher than the height of the first light-emitting element and the height of the second light-emitting element.

5. In paragraph 1, An opaque adhesive member (50) placed between the bulkhead member and the rear glass; Including more, A wearable electronic device, wherein the bulkhead member is attached to the rear plate by the opaque adhesive member.

6. In paragraph 5, A wearable electronic device, wherein the shape of the opaque adhesive member corresponds at least partially to the shape of the partition member, and the opaque adhesive member blocks transmission of the first light.

7. In paragraph 5, When the circuit board is viewed vertically, the opaque adhesive member at least partially overlaps the bulkhead member, A wearable electronic device, wherein when the circuit board is viewed vertically, the width of the opaque adhesive member is greater than the width of the bulkhead member.

8. In paragraph 1, A wearable electronic device, wherein when the circuit board is viewed vertically, a first portion of the rear glass overlapping the bulkhead member is formed to be opaque.

9. In paragraph 1, A light filtering member (130) arranged on a second portion of the rear glass corresponding to an area where the second light-emitting element of the circuit board is arranged to filter the first light; A wearable electronic device further comprising:

10. In paragraph 9, The above optical filtering member comprises SiO2 and Nb2O5, A wearable electronic device, wherein the light filtering member is formed by coating a material for filtering light in the wavelength range of ultraviolet rays on the surface of the second portion of the rear glass facing the circuit board.

11. In paragraph 9, Another light filtering member disposed on the second light emitting element for filtering the first light; A wearable electronic device further comprising:

12. In paragraph 11, The above other optical filtering member includes SiO2 and SiN, A wearable electronic device, wherein the other light filtering member is formed by coating the outer surface of the second light-emitting element with a material for filtering light in the wavelength range of ultraviolet rays.

13. In paragraph 1, The second light-emitting element is arranged in the central portion of the circuit board, A wearable electronic device, wherein the first light-emitting element is disposed at an edge portion of the circuit board.

14. In paragraph 1, The above wearable electronic device, Memory that stores instructions; One or more processors; Including more, The above commands, when executed by the wearable electronic device, cause the wearable electronic device to: By controlling the first light emitting element, the first light is emitted from the first light emitting element, Receiving the third light through at least one light-receiving element, By controlling the second light emitting element, the second light is emitted from the second light emitting element, Receiving the reflected light of the second light through at least one light-receiving element, A wearable electronic device that corrects the user's advanced glycation end-product estimated based on the third light based on the reflected light of the second light.

15. In wearable electronic devices, A first light-emitting element emitting first light having a wavelength range of ultraviolet rays; A second light-emitting element that emits second light having a wavelength range different from the wavelength range of the above ultraviolet rays; At least one photodetector; memory that stores commands; and One or more processors; Includes, The above commands, when executed by the wearable electronic device, cause the wearable electronic device to: By controlling the first light emitting element, the first light is emitted from the first light emitting element, While the first light is emitted from the first light-emitting element, a reverse voltage is applied to the second light-emitting element, While the reverse voltage is applied, a fluorescent signal generated from the body of a user who has received the first light through the at least one light-receiving element is received, By controlling the first light emitting element, the emission of the first light from the first light emitting element is stopped, By controlling the second light emitting element, the second light is emitted from the second light emitting element, Receiving the reflected light of the second light through at least one light-receiving element, Correcting the fluorescence signal based on the reflected light, A wearable electronic device that estimates the user's advanced glycation end-product based on the corrected fluorescence signal.

Images