Electronic device and wearable electronic device for measuring biosignals

Abstract

According to the present disclosure, an electronic device for measuring biosignals can be provided. The electronic device may comprise: a housing including a first surface and a second surface opposite to the first surface; glass which is disposed on the second surface of the housing and which is in contact with the body of a user wearing the electronic device; a circuit board arranged in the housing; a light-emitting element disposed on the circuit board so as to emit first light through the glass; a light-receiving element disposed on the circuit board so as to receive, through the glass, at least some of second light generated as the first light reacts to the body of the user wearing the electronic device; a partition member disposed between the light-emitting element and the light-receiving element on one surface of the circuit board; and at least two light-filtering members formed between the glass and the light-receiving element so as to block light of a wavelength band shorter than a first wavelength. According to one embodiment, the at least two light-filtering members can include: a first light-filtering member formed on the light-receiving element; and a second light-filtering member formed on an area of the glass corresponding to the light-receiving element.

Description

Electronic devices and wearable electronic devices for measuring biosignals

[0001] The present disclosure relates to an electronic device and a wearable electronic device for measuring biosignals, and more particularly, to measuring biosignals using an optical sensor.

[0002] Advances in LED (light emitting diode) and laser technology are expanding the range of applications for optical sensors. Optical sensors utilizing light-emitting LEDs and lasers, and light-receiving photodiodes (PDs), are widely used for applications such as distance measurement, proximity recognition, and biometric data acquisition.

[0003] Biological information can be provided by measuring the light that returns after emitting light onto the skin using an LED or laser and reacting with substances and blood vessels within the skin tissue using PD. For example, advanced glycation end-products (AGEs), which are formed when proteins or lipids non-enzymatically combine with sugars, react with UV light to generate a fluorescence signal, and by measuring the fluorescence signal using PD, AGEs can be measured.

[0004] Meanwhile, as electronic devices become smaller and lighter, various types of wearable electronic devices 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 the multiple sensors. For example, wearable electronic devices can obtain electrocardiogram (ECG), respiration, electromyography (EMG), electrooculography (EOG), electroencephalogram (EEG), blood glucose, oxygen saturation (SpO2), photoplethysmogram (PPG), or body temperature, as well as various other biometric information.

[0005] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art in connection with the present disclosure.

[0006] According to the present disclosure, an electronic device for measuring a biological signal may be provided. The electronic device may include a housing having a first surface and a second surface opposite the first surface. The electronic device may include glass disposed on the second surface of the housing and in contact with the body of a user wearing the electronic device. The electronic device may include a circuit board disposed within the housing. The electronic device may include a light-emitting element disposed on the circuit board, emitting a first light through the glass. The electronic device may include a light-receiving element disposed on the circuit board, receiving at least a portion of a second light generated in response to the first light reacting to the body of the user wearing the electronic device through the glass. The electronic device may include a partition member disposed between the light-emitting element and the light-receiving element on the first surface of the circuit board. The electronic device may include at least two light-filtering members formed between the glass and the light-receiving element, the light-filtering members blocking light having a wavelength shorter than a first wavelength. In one embodiment, the at least two light-filtering elements may include a first light-filtering element formed on the light-receiving element. In one embodiment, the at least two light-filtering elements may include a second light-filtering element formed on an area of ​​the glass corresponding to the light-receiving element.

[0007] Furthermore, according to the present disclosure, a wearable electronic device for measuring a biosignal can be provided. The wearable electronic device can include a memory for storing instructions, one or more processors, and a display. The wearable electronic device can include a housing including a front surface on which the display is disposed. The wearable electronic device can include a glass disposed on a rear surface of the housing and in contact with the body of a user wearing the wearable electronic device. The wearable electronic device can include a circuit board disposed within the housing. The wearable electronic device can include a light-emitting element disposed on the circuit board that emits ultraviolet light through the glass. The wearable electronic device can include a light-receiving element disposed on the circuit board that receives a fluorescence signal generated when the ultraviolet light reflects (reacts) on the body of the user wearing the wearable electronic device. The wearable electronic device may include a partition member disposed on the one surface of the circuit board to surround the light-emitting element and spatially separate the light-emitting element and the light-receiving element. The wearable electronic device may include at least two light-filtering members formed between the glass and the light-receiving element to block light having a wavelength shorter than a first wavelength. In one embodiment, the at least two light-filtering members may include a first light-filtering member formed on the light-receiving element. In one embodiment, the at least two light-filtering members may include a second light-filtering member formed on an area of ​​the glass corresponding to the light-receiving element.According to one embodiment, the instructions, when individually or collectively executed by the one or more processors, may cause the wearable electronic device to: control the light-emitting element to emit the ultraviolet light, detect the fluorescent signal received through the light-receiving element, estimate an advanced glycation end-products (AGEs) value of the user wearing the wearable electronic device based on an intensity of the detected fluorescent signal, and display the estimated AGEs value through the display.

[0008] FIG. 1 is a perspective view of the front of an electronic device according to one embodiment.

[0009] FIG. 2 is a perspective view of the rear surface of an electronic device according to one embodiment.

[0010] FIG. 3 is a perspective view of an unfolded electronic device according to one embodiment.

[0011] FIG. 4 is a drawing showing the appearance of an electronic device according to one embodiment.

[0012] FIG. 5 is a diagram illustrating an example of an optical sensor being placed in an electronic device according to one embodiment.

[0013] 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.

[0014] 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.

[0015] Figure 8 is a drawing for explaining light received by a light-receiving element based on light emitted from a light-emitting element.

[0016] Figure 9 is a drawing for explaining the intensity of light received by a light-receiving element based on light emitted from a light-emitting element.

[0017] FIG. 10 is a drawing for explaining a light-filtering member of an electronic device according to one embodiment.

[0018] FIG. 11 is a diagram for explaining the quantum efficiency (QE) of an electronic device including the light-filtering member of FIG. 10.

[0019] FIG. 12 is a drawing illustrating two light-filtering elements of an electronic device according to one embodiment.

[0020] FIG. 13 is a drawing for explaining the quantum efficiency of an electronic device including two light-filtering elements of FIG. 12.

[0021] FIG. 14 is a drawing for explaining the intensity of light received by a light-receiving element of an electronic device including two light-filtering elements of FIG. 12.

[0022] FIG. 15A is a drawing illustrating three light-filtering elements of an electronic device according to one embodiment.

[0023] FIG. 15b is a drawing showing an example of a third light-filtering member formed on an area corresponding to a partition member in glass and an adhesive member corresponding to the third light-filtering member according to one embodiment.

[0024] FIG. 15c is a drawing showing an example of a micro lens array (MLA) pattern formed in an area corresponding to a light emitting element according to one embodiment.

[0025] FIG. 15d is a drawing for explaining a light-receiving element having a light-filtering member formed thereon and a light-receiving element having no light-filtering member formed thereon in an electronic device according to one embodiment.

[0026] FIG. 16 is a drawing illustrating four light-filtering elements of an electronic device according to one embodiment.

[0027] FIG. 17 is a drawing showing an example of an electronic device according to one embodiment being a ring-type electronic device.

[0028] FIG. 18a is a diagram illustrating an example in which a portion of fluorescence generated by a user's body and UV light emitted from a UV light emitter are blocked by a light filtering member, according to one embodiment.

[0029] Figure 18b is a drawing for explaining the intensity of UV light passing through PET, TAC, resin, and modified resin.

[0030] Figure 18c is a drawing for explaining the intensity of light generated when UV light reacts with resin and modified resin.

[0031] Figure 19 is a block diagram of an electronic device according to one embodiment.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] The phrases “in one embodiment” and the like appearing in various places throughout this disclosure do not necessarily all refer to the same embodiment.

[0037] 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.

[0038] 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.

[0039] The cut-on wavelength refers to the wavelength at which light transmission begins in a long-pass filter. Light with a wavelength longer than the cut-on wavelength can pass through the long-pass filter, and light with a wavelength shorter than the cut-on wavelength can be blocked. A long-pass filter has a transmittance of 50% of the peak transmission at the cut-on wavelength, and has a gradient in which the transmittance increases as the wavelength increases in the transition region, which represents the wavelength range between the blocking and transmitting sections.

[0040] In the present disclosure, the expression "blocking light of a wavelength shorter than a specific wavelength" or "allowing light of a wavelength longer than a specific wavelength to pass through" may be interpreted as meaning that the specific wavelength is the cut-on wavelength and 50% of the light at the specific wavelength is transmitted.

[0041] The cutoff wavelength is the wavelength at which light begins to be blocked in a short-pass filter. Light with a wavelength shorter than the cutoff wavelength can pass through the short-pass filter, and light with a wavelength longer than the cutoff wavelength can be blocked. A short-pass filter has a transmittance of 50% of the peak transmission at the cutoff wavelength, and a gradient in which the transmittance decreases as the wavelength increases in the transition region, which represents the wavelength range between the transmission region and the blocking region.

[0042] A bandpass filter transmits light with a wavelength longer than the cut-on wavelength and shorter than the cut-off wavelength, and blocks light with a wavelength shorter than the cut-on wavelength and light with a wavelength longer than the cut-off wavelength. The center wavelength of a bandpass filter refers to the wavelength at the center of the cut-on wavelength and the cut-off wavelength.

[0043] The peak wavelength of light refers to the wavelength with the maximum intensity in the wavelength band of light, and the center wavelength of light refers to the center of the wavelength band with an intensity greater than half of the maximum intensity of light.

[0044] In the present disclosure, light emitted from a light-emitting element of an electronic device may be referred to as first light, and a light or fluorescent signal generated by the first light reflecting on a user's body may be referred to as second light.

[0045] 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.

[0046] 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 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 or a polymer plate comprising various coating layers). 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 comprises a metal and / or a polymer. In some embodiments, the back plate (107) and the side bezel structure (106) may be formed integrally and comprise 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.

[0047] 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.

[0048] 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.

[0049] 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).

[0050] 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.

[0051] 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).

[0052] 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).

[0053] 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.

[0054] FIG. 3 is a perspective view of an unfolded electronic device according to one embodiment.

[0055] 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.

[0056] 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.

[0057] 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).

[0058] 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).

[0059] 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).

[0060] 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.

[0061] FIG. 4 is a drawing showing the appearance of an electronic device according to one embodiment.

[0062] 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.

[0063] 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.

[0064] 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).

[0065] 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) (for example, the processor (1920) of FIG. 19). In addition, for example, the first electrode (411) may be an INM (input minus) electrode, the second electrode (412) may be an RLD (right leg drive electrode), and the third electrode (413) and the fourth electrode (414) may be INP (input plus) electrodes, but is not limited thereto.

[0066] 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.

[0067] According to one embodiment, the optical sensor (430) may include a light emitting element and a light receiving element. According to one embodiment, the light emitting element and the light receiving element may each 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 or lasers corresponding to a plurality of wavelength bands, and the plurality of light receiving elements may include a plurality of PDs (Photodiodes) corresponding to a plurality of wavelength bands. For example, the optical sensor (430) may include a plurality of LEDs or lasers that emit at least one light from among ultra violet (UV) light, violet light, blue light, green light, yellow light, red light, or infrared (IR), and a plurality of PDs that receive at least one light from among UV light, violet light, blue light, green light, yellow light, orange light, red light, or IR light.

[0068] According to one embodiment, the optical sensor (430) may be a biosensor (430) that emits light toward a living body and receives light generated in response to the emitted light in response to the body. The biosensor (430) may include, but is not limited to, a biomarker sensor for detecting a specific substance or component within the body. For example, the biosensor (430) may include a photoplethysmogram (PPG) sensor, a heart rate (HR) sensor, a heart rate variability (HRV) sensor, a saturation of partial pressure oxygen (SpO2) sensor, a blood pressure sensor, etc. The biomarker is an indicator that indicates changes within the body, such as cells, blood vessels, proteins, DNA, RNA, metabolites, etc., and can detect advanced glycation end-products (AGEs), blood sugar, alcohol, antioxidants, etc.

[0069] The optical sensor (430) may include a light emitter and a light receiver. The light emitter may include a light emitting element, and the light receiver may include a light receiving element. The light emitter may be composed of elements such as an LED, a laser, a VCSEL (vertical cavity surface emitting laser), etc. The light receiver may be composed of a PD, a CMOS (complementary metal oxide semiconductor) sensor, etc. The light receiver may receive light emitted from the light emitter, reflected or transmitted, and transmit the converted value through an ADC (analog to digital converter) to a memory or a sensor buffer. The light receiver may include an optical filter for passing or filtering out light of a specific band. The optical filter for passing or blocking light of a specific band will be further described with reference to FIGS. 10, 12, 15a, 15b, 15c, 16, and 17.

[0070] 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.

[0071] 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.

[0072] FIG. 5 is a diagram illustrating an example of an optical sensor being placed in an electronic device according to one embodiment.

[0073] 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 partition member (460) is viewed vertically toward the circuit board (450) (e.g., in a direction vertically penetrating the glass (470) and the circuit board (450), 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).

[0074] 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.

[0075] According to one embodiment, the adhesive member (50) may be implemented with an opaque material that does not allow light to pass through.

[0076] 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).

[0077] 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.

[0078] 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).

[0079] According to one embodiment, the rear glass (470 of FIG. 5) may include a plurality of windows corresponding to a plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) of the circuit board (450). The plurality of windows may have different shapes depending on the types of elements disposed in the corresponding regions (61, 62, 63, 64, 65, 66, 67, 68, 69). For example, the window corresponding to the region (61, 62, 64, 66, 68) where the light-emitting element is disposed may have a circular shape. For example, the window corresponding to the region (63, 65, 67, 69) where the light-receiving element is disposed may have a square shape. The plurality of windows may be transparent, but is not limited thereto, and may be opaque or translucent. In one embodiment, at least one window includes an optical filter for passing or blocking light of a specific band and may have a specific color. For example, at least one window corresponding to the light-receiving element may include an optical filter for blocking ultraviolet (UV) light and may have a green color. Optical filters for passing or blocking light of a specific band will be further described with reference to FIGS. 10, 12, 15a, 15b, 15c, 16, and 17.

[0080] 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).

[0081] 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).

[0082] 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 multiple openings 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 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] According to one embodiment, a light-emitting element may be arranged in the first region (61). For example, at least one of a red light-emitting element, a green light-emitting element, a blue light-emitting element, a violet light-emitting element, a yellow light-emitting element, or an IR light-emitting element may be arranged in the first region (61). For example, as illustrated in FIG. 7, a green light-emitting element, a blue light-emitting element, a violet light-emitting element, a yellow light-emitting element, and an IR light-emitting element may be arranged in the first region (61). According to one embodiment, the red light-emitting element may be, but is not limited to, an LED or a laser that emits light having a wavelength within a range of about 620 nm to 720 nm. For example, the red light-emitting element may be, but is not limited to, an LED or a laser that emits light having a center wavelength of about 660 nm. According to one embodiment, the yellow light-emitting element may be, but is not limited to, an LED or a laser that emits light having a wavelength within a range of about 570 nm to 590 nm. For example, the yellow light-emitting element may be an LED or laser that emits light having a center wavelength of approximately 580 nm. In one embodiment, the green light-emitting element may be an LED or laser that emits light having a wavelength within a range of, but not limited to, approximately 495 nm to 570 nm. For example, the green light-emitting element may be an LED or laser that emits light having a center wavelength of approximately 525 nm. In one embodiment, the violet light-emitting element may be an LED or laser that emits light having a wavelength within a range of, but not limited to, approximately 385 nm to 430 nm. For example, the violet light-emitting element may be an LED or laser that emits light having a center wavelength of approximately 405 nm. In one embodiment, the blue light-emitting element may be an LED or laser that emits light having a wavelength within a range of, but not limited to, 450 nm to 495 nm.For example, the blue light-emitting element may be an LED or laser that emits light having a center wavelength of approximately 470 nm. In one embodiment, the IR light-emitting element may be an LED or laser that emits light having a wavelength in a range of approximately 700 nm or greater, but is not limited thereto. For example, the IR light-emitting element may be an LED or laser that emits light having a center wavelength of approximately 940 nm.

[0088] According to one embodiment, a light emitting element may be disposed in the second region (62). For example, as illustrated in FIG. 7, a UV light emitting element may be disposed in the second region (62), and the UV light emitting element may be spatially separated from other elements (e.g., a red light emitting element, a green light emitting element, a blue light emitting element, a violet light emitting element, a yellow light emitting element, an IR light emitting element, a Normal PD, and a UV cut PD) by a partition member (460). For example, the UV light emitting element may include, but is not limited to, an LED or a laser that emits light having a wavelength within a range of 100 nm to 400 nm. For example, the UV light emitting element may include an LED or a laser that emits light having a center wavelength of approximately 365 nm.

[0089] According to one embodiment, a light-receiving element may be placed in the third region (63). For example, as illustrated in FIG. 7, 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.

[0090] According to one embodiment, a light-emitting element may be disposed in the fourth region (64). For example, at least one of a red light-emitting element, a green light-emitting element, a blue light-emitting element, a violet light-emitting element, a yellow light-emitting element, or an IR light-emitting element may be disposed in the fourth region (64). For example, as illustrated in FIG. 7, a green light-emitting element, a red light-emitting element, and an IR light-emitting element may be disposed in the fourth region (64). According to one embodiment, the red light-emitting element may be a light-emitting element that emits light having a wavelength within a range of about 620 nm to 720 nm, for example, an LED or laser that emits light having a center wavelength of about 660 nm. According to one embodiment, the green light-emitting element may be an LED or laser that emits light having a wavelength within a range of about 495 nm to 570 nm, for example, an LED or laser that emits light having a center wavelength of about 525 nm. In one embodiment, the IR light emitting element may be an LED or laser that emits light having a wavelength within a range of about 700 nm or greater, for example, an LED or laser that emits light having a center wavelength of about 940 nm.

[0091] According to one embodiment, a light-receiving element may be disposed in the fifth region (65). For example, as illustrated in FIG. 7, a UV cut PD may be disposed in the fifth region (65). The UV cut PD may, for example, receive light of wavelengths other than at least a UV wavelength range. The UV cut PD may include a light-filtering member that blocks light of the UV wavelength range. For example, the UV cut PD may receive light having a wavelength within a range of approximately 480 nm to 980 nm, but is not limited thereto. A light-filtering member for passing or blocking light of a specific band will be further described with reference to FIGS. 10, 12, 15a, 15b, 15c, 16, and 17.

[0092] According to one embodiment, a light emitting element may be arranged in a sixth region (66) opposite to the second region (62) with respect to the center of the circuit board (450). For example, as illustrated in FIG. 7, a UV light emitting element may be arranged in the sixth region (66). According to one embodiment, the UV light emitting element may be spatially separated from other elements (e.g., a red light emitting element, a green light emitting element, a blue light emitting element, a violet light emitting element, a yellow light emitting element, an IR light emitting element, a Normal PD, and a UV cut PD) by a partition member (460). For example, the UV light emitting element may include, but is not limited to, an LED or a laser that emits light having a wavelength within a range of approximately 100 nm to 400 nm. For example, the UV light emitting element may include an LED or a laser that emits light having a center wavelength of approximately 365 nm.

[0093] According to one embodiment, a light-receiving element may be placed in a seventh region (67) opposite to the third region (63) with respect to the center of the circuit board (450). For example, a Normal PD may be placed in the seventh region (67) as illustrated in FIG. 7. 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.

[0094] According to one embodiment, a light-emitting element 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, at least one of a red light-emitting element, a green light-emitting element, a blue light-emitting element, a violet light-emitting element, a yellow light-emitting element, or an IR light-emitting element may be arranged in the eighth region (68). For example, as illustrated in FIG. 7, a red light-emitting element, a green light-emitting element, and an IR light-emitting element may be arranged in the eighth region (68). According to one embodiment, the red light-emitting element may be a light-emitting element that emits light having a wavelength within a range of approximately 620 nm to 720 nm, and may be, for example, an LED or laser that emits light having a center wavelength of approximately 660 nm. In one embodiment, the green light-emitting element can be a light-emitting element that emits light having a wavelength within a range of about 495 nm to 570 nm, for example, an LED or laser that emits light having a center wavelength of about 525 nm. In one embodiment, the IR light-emitting element can be a light-emitting element that emits light having a wavelength within a range of about 700 nm or greater, for example, an LED or laser that emits light having a center wavelength of about 940 nm.

[0095] According to one embodiment, a light-receiving element may be arranged in a ninth region (69) opposite to the fifth region (65) with respect to the center of the circuit board (450). For example, a UV cut PD may be arranged in the ninth region (69) as illustrated in FIG. 7. The UV cut PD may, for example, receive light having a wavelength excluding at least a UV wavelength range. The UV cut PD may include a light-filtering member that blocks light in the UV wavelength range. For example, the UV cut PD may receive light having a wavelength within a range of approximately 480 nm to 980 nm, but is not limited thereto. A light-filtering member for passing or blocking light in a specific band will be further described with reference to FIGS. 10, 12, 15a, 15b, 15c, 16, and 17.

[0096] According to one embodiment, the electronic device (400) can emit UV light toward the user's skin and then measure a fluorescence signal generated when the emitted UV light reacts with advanced glycation end-products (AGEs) in the user's skin. AGEs are substances generated in the process of proteins or fats being combined with sugars and being glycated, and may include, for example, CEL (carboxyethyl-lysine), CML (carboxymethyl-lysin), MGH1 (methylglyoxal-derived hydroimidazolone 1), and pentosidine. AGEs accumulate in various parts of the human body (e.g., organs, muscles, joints, blood vessels, skin), and are related to health indicators related to aging, cancer, cardiovascular disease, and complications of diabetes patients.

[0097] 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 element (e.g., UV light-emitting element) in the first region (61) and the light-emitting element (e.g., UV light-emitting element) 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 emitted from the user's body by using at least one of the normal PDs disposed in the third region (63) and the seventh region (67) of the circuit board (450), and the UV cut PDs disposed in the fifth region (65) and the ninth region (69). 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 light-emitting element, a green light-emitting element, a blue light-emitting element, a violet light-emitting element, a yellow light-emitting element, or an IR light-emitting element disposed on the circuit board (450). In addition, the electronic device (400) can receive the reflected light reflected by the user's body using at least one of the normal PD disposed in the third region (63) and the seventh region (67) of the circuit board (450), and the UV cut PD disposed in the fifth region (65) and the ninth region (69), and can correct the fluorescence signal based on the received reflected light, taking into account the user's skin color. The electronic device (400) can estimate the user's advanced glycation end product based on the corrected fluorescence signal. For example, when light with a peak wavelength of approximately 365 nm (UV) is emitted to the skin, advanced glycation end products (AGEs) in the skin react to the light and generate a fluorescence signal in the wavelength range of approximately 380 nm to 600 nm, centered at approximately 500 nm. By analyzing the size of this fluorescence signal, the amount of AGEs in the body can be estimated.

[0098] In one embodiment, in order to accurately estimate advanced glycation end products, it is necessary to accurately separate or suppress signals other than the fluorescent signal generated from the skin. For example, when fluorescence is generated from a red light-emitting element, a blue light-emitting element, a green light-emitting element, a violet light-emitting element, a yellow light-emitting element, and / or an IR light-emitting element due to UV light, the fluorescence generated from the red light-emitting element, the blue light-emitting element, the green light-emitting element, and / or the IR light-emitting element may act as noise or interference (crosstalk) in the estimation of advanced glycation end products. Accordingly, in one embodiment, in order to accurately estimate advanced glycation end products, the elements of the optical sensor (430) within the electronic device (400) may be arranged to be spatially separated by a partition member (460) on the circuit board (450).

[0099] Identification number 712 of FIG. 7 is a drawing showing a cross-section A-A' of identification number 710. Referring to identification number 712 of FIG. 7, the second region (62) and the ninth region (69) can be spatially separated from each other by a partition member (460) according to one embodiment. The partition member (460) is disposed on the circuit board (450), and the second region (62) and the ninth region (69) can be spatially separated from each other by the disposed partition member (460).

[0100] The partition member (460) disposed on the circuit board (450) surrounds the light-emitting elements of one region, so that the regions (61, 62, 63, 64, 65, 66, 67, 68, 69) in which the light-emitting elements or the light-receiving elements are disposed can be spatially separated from each other. For example, the partition member (460) disposed on the circuit board (450) can surround the light-emitting elements disposed in the first region (61), the second region (62), the fourth region (64), the sixth region (66), and the eighth region (68), so that the regions (61, 62, 63, 64, 65, 66, 67, 68, 69) in which the light-emitting elements or the light-receiving elements are disposed can be spatially separated from each other. By means of the arranged partition wall member (460), the elements arranged in each region (61, 62, 63, 64, 65, 66, 67, 68, 69) can be isolated by region. The partition wall member (460) can surround the side surfaces of the elements arranged on one surface of the circuit board (450) and expose the upper surfaces of the elements so that the light-emitting elements can emit light through the glass (470) and the light-receiving elements can receive light through the glass (470).

[0101] According to one embodiment, the rear glass (470) may include a plurality of windows corresponding to a plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69) of the circuit board (450). The plurality of windows may have different shapes depending on the type of elements disposed in the corresponding regions (61, 62, 63, 64, 65, 66, 67, 68, 69). For example, the window corresponding to the region (61, 62, 64, 66, 68) where the light-emitting element is disposed may have a circular shape. For example, the window corresponding to the region (63, 65, 67, 69) where the light-receiving element is disposed may have a square shape. The plurality of windows may be transparent, but is not limited thereto, and may be opaque or translucent. According to one embodiment, at least one window includes a light-filtering member for passing or blocking light of a specific band and may have a specific color. For example, at least one window corresponding to the light-receiving element includes a light-filtering member for blocking ultraviolet (UV) light and may have a green color. The light-filtering member for passing or blocking light of a specific band will be further described with reference to FIGS. 10, 12, 15a, 15b, 15c, 16, and 17.

[0102] In one embodiment, a light-emitting element may be disposed in a second region (62) on one surface of a circuit board (450). For example, a light-emitting element (e.g., a UV light-emitting element) in the second region (62) may emit UV light. UV light emitted from the light-emitting element (e.g., a UV light-emitting element) in the second region (62) may be directed toward a user's body (e.g., skin).

[0103] According to one embodiment, UV light emitted from a light-emitting element (e.g., a UV light-emitting element) in the second region (62) can be prevented from being transmitted to a light-receiving element in the ninth region (61) by the partition member (460).

[0104] According to one embodiment, the rear glass (470) may include a region (73) corresponding to a partition member (460) disposed on one surface of the circuit board (450). The rear glass (470) may further include regions corresponding to a second region (62) in which a light-emitting element is disposed and a ninth region (69) in which a light-receiving element is disposed, and these regions may be referred to as windows.

[0105] The identification number 712 of FIG. 7 represents a cross-section A-A' across the second region (62) and the ninth region (69) in the identification number 710, but is not limited thereto, and may represent a cross-section across the first region (61) and the fifth region (65) in the identification number 710, a cross-section across the first region (61) and the ninth region (69), and a cross-section across the sixth region (66) and the fifth region (65).

[0106] Fig. 8 is a drawing for explaining light received by a light-receiving element based on light emitted from a light-emitting element. Fig. 8 may correspond to the AA' cross-section of identification number 712 of Fig. 7, but is not limited thereto, and may correspond to a cross-section crossing the first region (61) and the fifth region (65) in identification number 710, a cross-section crossing the first region (61) and the ninth region (69), and a cross-section crossing the sixth region (66) and the fifth region (65).

[0107] For convenience of explanation of Fig. 8, further reference is made to Fig. 9. Fig. 9 is a drawing for explaining the intensity of light received by a light-receiving element based on light emitted from a light-emitting element.

[0108] Referring to FIG. 8, light may be emitted from a light-emitting element disposed in a second region (62) on one surface of a circuit board (450). For example, a light-emitting element (e.g., a UV light-emitting element) in the second region (62) may emit UV light toward the glass (470). Although the emitted UV light may be blocked by the partition member (460) from directly reaching the light-receiving element disposed in the ninth region (69), the reflected light of the emitted UV light may still reach the light-receiving element by avoiding the partition member (460). For example, the emitted UV light may be reflected by the boundary between the glass (470) and the skin (SKIN), so that the reflected light (①) may reach the light-receiving element disposed in the ninth region (69). The emitted UV light may be reflected by various materials in the skin (SKIN), so that the reflected light (②) may reach the light-receiving element disposed in the ninth region (69). The emitted UV light reacts with advanced glycation end products in the skin (SKIN) to generate a fluorescence signal (③), and the generated fluorescence signal (③) can reach the light-receiving element arranged in the ninth region (69).

[0109] An electronic device according to one embodiment can estimate the amount of advanced glycation end products (AGEs) in skin (SKIN) by analyzing a fluorescence signal (③).

[0110] The graph of Fig. 9 represents the intensity of light or signal measured along the horizontal time axis on the vertical axis. The fluorescence signal (③) generated by the advanced glycation end product has a lower intensity of light than the reflected lights (① and ②). The reflected lights (① and ②) with relatively high intensity of light act as noise or interference (crosstalk) in the measurement of the fluorescence signal (③), so that the reflected lights (① and ②) do not reach the light-receiving element arranged in the ninth region (69), and the electronic device according to one embodiment may include a light-filtering member, which will be described with reference to Fig. 10.

[0111] FIG. 10 is a drawing for explaining a light-filtering member of an electronic device according to one embodiment. FIG. 10 may correspond to the cross-sectional view of FIG. 8, but is not limited thereto. For example, FIG. 10 may correspond to the AA' cross-section of identification number 712 of FIG. 7, the cross-section crossing the first region (61) and the fifth region (65) at identification number 710 of FIG. 7, the cross-section crossing the first region (61) and the ninth region (69), and the cross-section crossing the sixth region (66) and the fifth region (65).

[0112] An electronic device according to one embodiment may include a light-filtering member (481). The light-filtering member (481) may be formed on a light-receiving element. For example, the light-filtering member (48) may be formed on a light-receiving element disposed in the ninth region (69) and the fifth region (65) of FIGS. 6 and 7. According to one embodiment, the light-filtering member (481) may be formed on a plurality of light-receiving elements. When the circuit board (450) is viewed vertically, the light-filtering member (481) formed on the light-receiving element may have the shape of the light-receiving element. For example, when the circuit board (450) is viewed vertically, the light-filtering member (481) may have a square shape.

[0113] The light-filtering member (481) can block light having a wavelength shorter than a specified wavelength (filter out) and prevent the light from entering the light-receiving element. For example, the light-filtering member (481) can block light of a specific wavelength range by absorbing light of a specific wavelength range and allowing light of a different wavelength range to pass through, but is not limited thereto and can block light of a specific wavelength range using various principles.

[0114] The light-filtering member (481) functions as a long-pass filter and can block light with a wavelength shorter than a cut-on wavelength and transmit light with a wavelength longer than the cut-on wavelength. An ideal long-pass filter can block all light with a wavelength shorter than the cut-on wavelength and transmit all light with a wavelength longer than the cut-on wavelength. However, an actual filter has a transmittance of 50% at the cut-on wavelength and a gradient that changes in a transition region representing a wavelength range between a blocking region and a transmitting region. In other words, the narrower the width of the transition region of the filter, the closer it is to an ideal filter.

[0115] In the present disclosure, the expression "blocking light of a wavelength shorter than a specific wavelength" or "allowing light of a wavelength longer than a specific wavelength to pass through" may be interpreted as meaning that the specific wavelength is the cut-on wavelength and 50% of the light at the specific wavelength is transmitted.

[0116] In one embodiment, the light-filtering member (481) can block light having a wavelength shorter than a wavelength within a range of approximately 480 nm to 520 nm, thereby preventing the light from entering the light-receiving element. In one embodiment, the light-filtering member (481) can block light having a wavelength shorter than approximately 500 nm.

[0117] According to one embodiment, the light-filtering member (481) may be laminated on the light-receiving element through thermal evaporation, but is not limited thereto, and other coating, deposition, or lamination methods may be used. The light-filtering member (481) may be formed by depositing silicon dioxide (SiO2) and silicon nitride (SiN) on the light-receiving element through thermal evaporation, but is not limited thereto, and other materials may be used. The light-filtering member (481) may be a coating layer or film formed on the light-receiving element.

[0118] According to one embodiment, when the circuit board (450) is viewed vertically, the area of ​​the light-filtering member (481) may be equal to the area of ​​the light-receiving element on which the light-filtering member (481) is formed.

[0119] According to one embodiment, the reflected light of UV light (① and ② of FIG. 8) is blocked by the light-filtering member (481), thereby preventing it from entering the light-receiving element. Since the reflected light of UV light (① and ② of FIG. 8) of relatively high intensity has difficulty reaching the light-receiving element, the fluorescence signal (③) generated by the advanced glycation end product of relatively low intensity can be accurately measured.

[0120] FIG. 11 is a diagram for explaining the quantum efficiency (QE) of an electronic device including the light-filtering member of FIG. 10.

[0121] The graph of Fig. 11 represents the quantum efficiency measured along the horizontal wavelength axis on the vertical axis. Referring to identification number 1100 of Fig. 11, the quantum efficiency of the light-receiving element of the electronic device including the light-filtering member (481) may be 5% or less in a wavelength range lower than approximately 500 nm.

[0122] Referring to identification number 1100 of FIG. 11, the quantum efficiency of the light-receiving element of the electronic device including the light-filtering element (481) is close to approximately 5% in a wavelength range of approximately 300 nm, and has a value in the range of approximately 1% to 5% in a wavelength range of approximately 300 nm to 500 nm. To further block UV light from reaching the light-receiving element, two light-filtering elements may be applied to the electronic device.

[0123] FIG. 12 is a drawing for explaining two light-filtering elements of an electronic device according to one embodiment. FIG. 12 may correspond to the cross-sectional views of FIGS. 8 and 10, but is not limited thereto. For example, FIG. 12 may correspond to the AA' cross-section of identification number 712 of FIG. 7, the cross-section across the first region (61) and the fifth region (65) at identification number 710 of FIG. 7, the cross-section across the first region (61) and the ninth region (69), and the cross-section across the sixth region (66) and the fifth region (65).

[0124] An electronic device according to one embodiment may include two light-filtering members (481, 482). The first light-filtering member (481) may be formed on a light-receiving element. For example, the first light-filtering member (481) may be formed on a light-receiving element disposed in the ninth region (69) and the fifth region (65) of FIGS. 6 and 7. According to one embodiment, the first light-filtering member (481) may be formed on a plurality of light-receiving elements. When the circuit board (450) is viewed vertically, the first light-filtering member (481) formed on the light-receiving element may have the shape of the light-receiving element. For example, the first light-filtering member (481) may have a square shape.

[0125] The second light-filtering member (482) may be formed on an area corresponding to a light-receiving element in the glass (470). The area corresponding to the light-receiving element in the glass (470) may correspond to one of the areas (63, 65, 67, and 69 of FIGS. 6 and 7) on which light-receiving elements are arranged on the circuit board (450). When the circuit board is viewed vertically, the area corresponding to the light-receiving element in the glass (470) may have a square shape. The glass (470) may include a plurality of windows corresponding to a plurality of areas (63, 65, 67, and 69 of FIGS. 6 and 7) on which light-receiving elements are arranged on one surface of the circuit board (450), and the area corresponding to the light-receiving element in the glass (470) may be one of the plurality of windows. A second light-filtering member (482) may be formed on one side of a window corresponding to a light-receiving element in the glass (470).

[0126] The first and second light-filtering members (481, 482) can block light having a wavelength shorter than a designated wavelength (filter out) and prevent the light from entering the light-receiving element. For example, the first and second light-filtering members (481, 482) can block light of a specific wavelength range by absorbing light of a specific wavelength range and allowing light of a different wavelength range to pass through, but the present invention is not limited thereto and can block light of a specific wavelength range using various principles.

[0127] According to one embodiment, the first and second light-filtering elements (481, 482) function as long pass filters and can block light having a wavelength shorter than a cut-on wavelength and transmit light having a wavelength longer than the cut-on wavelength.

[0128] In one embodiment, the first and second light-filtering members (481, 482) can block light having a wavelength shorter than a wavelength within a range of approximately 480 nm to 520 nm, thereby preventing the light from entering the light-receiving element. In one embodiment, the first and second light-filtering members (481, 482) can block light having a wavelength shorter than approximately 500 nm. In one embodiment, the cut-on wavelengths of the first and second light-filtering members (481, 482) can be different, thereby blocking UV light over a wider range of wavelengths.

[0129] According to one embodiment, the first light-filtering member (481) may be deposited on the light-receiving element through thermal evaporation, and the second light-filtering member (482) may be deposited on the glass (470) through sputtering, but is not limited thereto, and other coating, deposition, or lamination methods may be used. The first light-filtering member (481) may be formed by depositing silicon dioxide (SiO2) and silicon nitride (SiN) on the light-receiving element through thermal evaporation, and the second light-filtering member (482) may be formed by depositing silicon dioxide (SiO2) and niobium pentoxide (Nb2O5) on the glass (470) through sputtering, but is not limited thereto, and other materials may be used. The first and second light-filtering elements (481, 482) may be coating layers or films formed on the light-receiving element and glass (470), respectively.

[0130] According to one embodiment, the first and second light-filtering members (481, 482) may be spaced apart from each other by approximately 0.36 mm to 0.37 mm. For example, the first and second light-filtering members (481, 482) may be spaced apart from each other by approximately 0.368 mm. Since the first and second light-filtering members (481, 482) may absorb UV light and generate heat, the first and second light-filtering members (481, 482) may be spaced apart from each other rather than being in contact with each other to reduce heat accumulation and thereby maintain the lifespan and performance of the first and second light-filtering members (481, 482).

[0131] According to one embodiment, when the circuit board (450) is viewed vertically, the area of ​​the first light-filtering member (481) may be the same as the area of ​​the light-receiving element on which the first light-filtering member (481) is formed, and the area of ​​the second light-filtering member (482) may be wider than the area of ​​the light-receiving element and the area of ​​the first light-filtering member (481). Accordingly, not only UV light that is vertically incident on the light-receiving element, but also UV light that is obliquely incident can be effectively blocked. According to one embodiment, the second light-filtering member (482) may cover a wider area than the first light-filtering member (481) to block UV light.

[0132] According to one embodiment, the reflected light of UV light (① and ② of FIG. 8) is blocked by the first light-filtering member (481) and the second light-filtering member (482), thereby preventing it from entering the light-receiving element. Since the reflected light of UV light (① and ② of FIG. 8) of relatively high intensity has difficulty reaching the light-receiving element, the fluorescence signal (③) generated by the advanced glycation end product of relatively low intensity can be accurately measured.

[0133] FIG. 13 is a drawing for explaining the quantum efficiency of an electronic device including two light-filtering elements of FIG. 12.

[0134] The graph of Fig. 13 represents the quantum efficiency measured along the horizontal wavelength axis on the vertical axis. Referring to the identification number 1300 of Fig. 13, the quantum efficiency of the light-receiving element of the electronic device including the first and second light-filtering elements (481, 482 of Fig. 12) can substantially converge to 0 in a wavelength range lower than approximately 500 nm.

[0135] Comparing identification number 1300 of FIG. 13 with identification number 1100 of FIG. 11, it can be understood that the quantum efficiency in a wavelength range lower than approximately 500 nm is closer to 0 when two light-filtering elements are used than when one light-filtering element is used. According to one embodiment, by using two light-filtering elements formed on the light-receiving element and glass, UV light can be blocked more effectively.

[0136] FIG. 14 is a drawing for explaining the intensity of light received by a light-receiving element of an electronic device including two light-filtering elements of FIG. 12. For convenience of explanation of FIG. 14, reference is made further to FIG. 9.

[0137] The graph in Figure 14 shows the intensity of light or signal measured along the horizontal time axis on the vertical axis.

[0138] According to one embodiment, the reflected light (①, ②) of UV light emitted from a light-emitting element of an electronic device can be blocked from entering a light-receiving element by a light-filtering member (e.g., 481, 482 of FIG. 12).

[0139] Referring to FIG. 9, when a light-filtering member (e.g., 481, 482 of FIG. 12) is not formed, the size of the UV reflected light (①, ②) reaching the light-receiving element of the electronic device is larger than the fluorescence signal (③) generated by the final glycation product, so accurate measurement of the fluorescence signal (③) may be difficult.

[0140] On the other hand, referring to FIG. 14, the UV reflected light (①, ②) reaching the light-receiving element of the electronic device including the light-filtering member (e.g., 481, 482 of FIG. 12) has an intensity much smaller than the fluorescence signal (③) generated by the advanced glycation end product, and thus does not affect the estimation of the advanced glycation end product value based on the fluorescence signal (③), thereby enabling the advanced glycation end product value to be estimated more accurately.

[0141] FIG. 15A is a drawing for explaining three light-filtering elements of an electronic device according to one embodiment. FIG. 15A may correspond to, but is not limited to, the cross-sectional views of FIGS. 8, 10, and 12. For example, FIG. 15A may correspond to the AA' cross-section of identification number 712 of FIG. 7, the cross-section across the first region (61) and the fifth region (65) at identification number 710 of FIG. 7, the cross-section across the first region (61) and the ninth region (69), and the cross-section across the sixth region (66) and the fifth region (65).

[0142] An electronic device according to one embodiment may include three light-filtering members (481, 482, 483). A first light-filtering member (481) may be formed on a light-receiving element, a second light-filtering member (482) may be formed on an area of ​​glass (470) corresponding to the light-receiving element, and a third light-filtering member (483) may be formed on an area of ​​glass (470) corresponding to a partition member (460).

[0143] In one embodiment, the third light-filtering member (483) may be formed to extend from the second light-filtering member (482), or the second light-filtering member (482) may be formed to extend from the third light-filtering member (483). For example, the third light-filtering member (483) may be formed on the glass (470) using the same material and the same method as the second light-filtering member (482). For example, the third light-filtering member (483) may be formed by depositing silicon dioxide (SiO2) and niobium pentoxide (Nb2O5) sputtering on the glass (470). The second and third light-filtering members (482, 483) may be formed together on the glass (470). The first, second, and third light-filtering members (481, 482, 483) may be coating layers or films formed on the light-receiving element and the glass (470). The third light-filtering member (483) may include a member formed using a different method and material than the second light-filtering member (482). For example, the third light-filtering member (483) may include a member formed using a material for blocking light of all wavelengths, which will be further described with reference to FIGS. 15b and 15c.

[0144] The third light-filtering member (483) may be formed so as to avoid an area corresponding to the light-emitting element in the glass (470). If the third light-filtering member (483) is also formed on an area corresponding to the light-emitting element in the glass (470), the third light-filtering member (483) may obstruct the path of light emitted from the light-emitting element. Therefore, the third light-filtering member (483) may be formed so as to avoid an area corresponding to the light-emitting element in the glass (470).

[0145] For example, the second and third light-filtering elements (482, 483) may be formed only on the area corresponding to the light-receiving element in the glass (470) and the area corresponding to the barrier member (460).

[0146] For example, the second and third light-filtering elements (482, 483) may be formed only on the area corresponding to the light-receiving elements of half of the electronic device (e.g., two UV cut PDs) in the glass (470) and on the area corresponding to the barrier member (460).

[0147] For example, the second and third light-filtering members (482, 483) can be formed on the remaining area of ​​the glass (470) except for the area corresponding to the light-emitting element.

[0148] For example, the second and third light-filtering elements (482, 483) can be formed on the remaining area of ​​the glass (470) excluding the area corresponding to the light-emitting element and the area corresponding to half of the light-receiving elements (e.g., two Normal PDs).

[0149] An electronic device according to one embodiment may include a light-receiving element (e.g., UV cut PD) on which a first light-filtering member (481) is formed and a light-receiving element (e.g., Normal PD) on which the first light-filtering member (481) is not formed. According to one embodiment, the first light-filtering member (481) may be formed on the UV cut PD and not formed on the Normal PD, the second light-filtering member (482) may be formed on an area corresponding to the UV cut PD in the glass (470) and not formed on an area corresponding to the Normal PD in the glass (470), and the third light-filtering member (483) may be formed on an area corresponding to the partition member (460), which will be further described with reference to FIG. 15d.

[0150] According to one embodiment, when the circuit board (450) is viewed vertically, the area of ​​the first light-filtering member (481) is the same as the area of ​​the light-receiving element on which the first light-filtering member (481) is formed, the area of ​​the second light-filtering member (482) may be wider than the area of ​​the light-receiving element and the area of ​​the first light-filtering member (481), and the area of ​​the third light-filtering member (483) may be wider than the area of ​​the light-receiving element, the area of ​​the first light-filtering member (481), and the area of ​​the second light-filtering member (482). Accordingly, not only UV light that is vertically incident on the light-receiving element, but also UV light that is obliquely incident can be effectively blocked. According to one embodiment, the third light-filtering member (483) can block UV light by covering a wider area than the first and second light-filtering members (481, 482).

[0151] The first, second, and third light-filtering members (481, 482, 483) can block light having a wavelength shorter than a designated wavelength (filter out) and prevent the light from entering the light-receiving element. For example, the first, second, and third light-filtering members (481, 482, 483) can block light of a specific wavelength range by absorbing light of a specific wavelength range and allowing light of a different wavelength range to pass therethrough, but the present invention is not limited thereto and may block light of a specific wavelength range using various principles.

[0152] According to one embodiment, the first, second and third light-filtering elements (481, 482, 483) function as long pass filters and can block light having a wavelength shorter than a cut-on wavelength and transmit light having a wavelength longer than the cut-on wavelength.

[0153] In one embodiment, the first, second, and third light-filtering members (481, 482, 483) can block light having a wavelength shorter than a wavelength within a range of approximately 480 nm to 520 nm, thereby preventing the light from entering the light-receiving element. In one embodiment, the first, second, and third light-filtering members (481, 482, 483) can block light having a wavelength shorter than approximately 500 nm. In one embodiment, the cut-on wavelengths of the first light-filtering member (481) and the second and third light-filtering members (482, 483) can be different, thereby blocking UV light over a wider range of wavelengths.

[0154] In one embodiment, the third light-filtering member (483) is formed by a different method than the second light-filtering member (482), and may be formed of a different material than the second light-filtering member (482), or may further include a member formed by the same method and with the same material. In one embodiment, the first and second light-filtering members (481, 482) are formed of a material for blocking light having a wavelength shorter than a wavelength included in a range of about 480 nm to 520 nm, for example, light having a wavelength shorter than about 500 nm, and the third light-filtering member (483) may be formed of a material for blocking light of all wavelengths, or may further include the material, which will be further described with reference to FIGS. 15b and 15c.

[0155] FIG. 15b is a drawing illustrating an example of a third light-filtering member formed on an area corresponding to a partition member in glass according to one embodiment. For convenience of explanation, reference is made to FIG. 15a, FIG. 5, FIG. 6, and FIG. 7.

[0156] Referring to FIG. 15a, the third light-filtering member (483) may be formed on an area corresponding to the partition member (460) in the glass (470). Referring to FIG. 7, the partition member (460) may surround the side surfaces of the elements disposed on one surface of the circuit board (450) and expose the top surfaces of the elements so that the light-emitting elements can emit light through the glass and the light-receiving elements can receive light through the glass. In one embodiment, the third light-filtering member (483) may have a shape corresponding to the partition member surrounding the side surfaces of the elements and exposing the top surfaces of the elements, as illustrated in FIG. 15b, but is not limited thereto.

[0157] Referring to FIGS. 5 and 6, the rear glass (470 of FIG. 5) may include a plurality of windows corresponding to a plurality of regions (61, 62, 63, 64, 65, 66, 67, 68, 69 of FIG. 6) of the circuit board (450). The plurality of windows may have different shapes depending on the types of elements disposed in the corresponding regions (61, 62, 63, 64, 65, 66, 67, 68, 69 of FIG. 6). For example, the windows corresponding to regions where light-emitting elements are disposed (61, 62, 64, 66, 68 of FIG. 6) may have a circular shape. For example, the windows corresponding to regions where light-receiving elements are disposed (63, 65, 67, 69 of FIG. 6) may have a square shape. The plurality of windows may be transparent, but are not limited thereto, and may be opaque or translucent. In one embodiment, at least one window includes an optical filter for passing or blocking light of a specific band and may have a specific color. For example, at least one window corresponding to the light-receiving element may include an optical filter for blocking ultraviolet (UV) light and may have a green color. For example, a pattern may be formed on at least one window corresponding to the light-emitting element to uniformly spread UV light, which will be further described with reference to FIG. 15c.

[0158] Referring back to FIG. 15B, the third light-filtering member (483) is formed on one side of the base film (4830), and the opposite side of the one side of the base film (4830) can be attached to the rear glass (e.g., 470 of FIG. 5) using an adhesive member (51). In one embodiment, the base film (4830) can be formed of a material that transmits UV light and has low reactivity to UV light, such as triacetyl cellulose (TAC). The TAC film (4830) can be transparent, but is not limited thereto, and can be translucent. In one embodiment, the TAC film (4830) can have a thickness in a range of approximately 0.037 mm to 0.043 mm, for example, can have a thickness of approximately 0.04 mm. The reactivity of the TAC film (4830) to UV light will be further described with reference to FIG. 18B.

[0159] In one embodiment, the base film (4830) may have a circular shape corresponding to the rear glass (470 in FIG. 5). The base film (4830) has areas (4831, 4832, 4833, 4834, 4835, 4836, 4837, 4838, 4839) corresponding to the windows of the rear glass (470 in FIG. 5), and the areas (4831, 4832, 4834, 4836, 4838) corresponding to the areas where the light-emitting elements are arranged (61, 62, 64, 66, 68 in FIG. 6) may have a circular shape, and the areas (4833, 4835, 4837, 4839) corresponding to the areas where the light-receiving elements are arranged (63, 65, 67, 69 in FIG. 6) may have a square shape, but is not limited thereto.

[0160] In one embodiment, the third light-filtering member (483) may be a black matrix (BM) pattern (483) formed on a base film (4830) to prevent crosstalk due to UV light, or may further include a BM pattern (483). The BM pattern (483) may be formed of a resin. The resin forming the BM pattern (483) may be modified so as not to react with UV light. For example, the BM pattern (483) may be formed using a material that does not react with UV light as an initiator. For example, the BM pattern (483) may be formed through UV curing in an atmosphere of inert gases such as nitrogen and argon. The reactivity of the modified resin to UV light will be further described with reference to FIG. 18C. In one embodiment, the BM pattern (483) can have a thickness in the range of approximately 0.025 mm to 0.045 mm, for example, approximately 0.03 mm or 0.04 mm. In one embodiment, the pitch between adjacent cells in the BM pattern (483) can be approximately 0.025 mm. In one embodiment, the black lines isolating each cell in the BM pattern (483) can have a thickness in the range of approximately 0.003 mm to 0.006 mm.

[0161] In one embodiment, the BM pattern (483) may be formed on the base film (4830) while avoiding regions (4831, 4832, 4833, 484034, 4835, 4836, 4837, 4838, 4839) of the base film (4830). Referring to FIG. 7, the partition member (460) may surround the side surfaces of the elements disposed on one surface of the circuit board (450) and expose the top surfaces of the elements so that the light-emitting elements can emit light through the glass and the light-receiving elements can receive light through the glass. In one embodiment, the BM pattern (483) may have a shape corresponding to the partition member surrounding the side surfaces of the elements and exposing the top surfaces of the elements, as illustrated in FIG. 15B, but is not limited thereto.

[0162] In one embodiment, the BM pattern (483) may be formed of a black material that absorbs light and blocks transmission. The black material may be composed of a black resin and may have a matrix or block shape. The BM pattern (483) may be manufactured through thermal curing or UV curing, and may be formed, for example, by first manufacturing a transparent resin including an opening and then filling the opening with a black resin. According to one embodiment, interference by UV light can be effectively prevented through the BM pattern (483) formed of a black material.

[0163] In one embodiment, a third light-filtering member (483) is formed on one side of a base film (4830), and the opposite side of the one side of the base film (4830) can be attached to a rear glass (e.g., 470 in FIG. 5) using an adhesive member (51). In one embodiment, the adhesive member (51) can be made of a black material that absorbs light and blocks transmission. The adhesive member (51) can be implemented in the form of a double-sided tape to adhere the rear glass (e.g., 470 in FIG. 5) and the base film (4830). In one embodiment, the adhesive member (51) can be formed by black-coating both sides of a PET (polyethylene terephthalate) film having a thickness in the range of approximately 0.015 to 0.025 and then coating an adhesive (e.g., an acrylic adhesive). In one embodiment, the adhesive member (51) may be formed by coating an adhesive (e.g., an acrylic adhesive) on a black PET film having a thickness in the range of approximately 0.015 to 0.030.

[0164] According to one embodiment, interference by UV light can be more effectively prevented through the adhesive member (51) and BM pattern (483) formed of a black material.

[0165] In one embodiment, the total thickness of the optical film in which the base film (4830), the BM pattern (483), and the adhesive member (51) are all combined may be a thickness in the range of about 0.104 mm to 0.124 mm, for example, about 0.114 mm. A primer may be applied between the base film (4830) and the BM pattern (483), and a primer may be applied between the BM pattern (483) and the adhesive member (51). Each primer may have a thickness in the range of about 0.004 mm to 0.01 mm, for example, 0.07 mm. In one embodiment, the optical film may further include a micro lens array (MLA) pattern, which will be described with reference to FIG. 15C.

[0166] FIG. 15c is a drawing showing an example of a micro lens array (MLA) pattern formed in an area corresponding to a light emitting element according to one embodiment.

[0167] According to one embodiment, a pattern for uniformly spreading light may be formed on areas (4831, 4832, 4834, 4836, 4838) corresponding to light-emitting elements in the base film (4830). For example, an MLA pattern (485) may be formed on areas (4832 and 4836) corresponding to UV light-emitting elements in the base film (4830). In order for UV light emitted through the rear glass (e.g., 470 of FIG. 5) to uniformly spread toward the skin, the MLA pattern (485) may have a detailed structure composed of a plurality of cells. The shape of the cells constituting the detailed structure may be a circle as illustrated in FIG. 15C, but is not limited thereto. For example, the shape of the cells constituting the detailed structure of the MLA pattern (485) may be a triangle, a square, or a hexagon. In one embodiment, the circles constituting the MLA pattern (485) may have a diameter within a range of approximately 0.01 mm to 0.04 mm, for example, a diameter of 0.035 mm. In one embodiment, the circles constituting the MLA pattern (485) may be spaced apart from each other by a distance of less than approximately 0.001 mm, but is not limited thereto. For example, the circles constituting the MLA pattern (485) may be adjacent to or overlapping each other. In one embodiment, the thickness of the MLA pattern (485) may have a thickness within a range of approximately 0.005 mm to 0.02 mm, for example, a thickness of 0.01 mm. In one embodiment, the MLA pattern (485) may be formed of a resin.

[0168] According to one embodiment, the total thickness of the portion where the base film (4830), the MLA pattern (485), and the adhesive member (51) are combined in the optical film may be a thickness within a range of approximately 0.084 mm to 0.104 mm, for example, approximately 0.094 mm. A primer may be applied between the base film (4830) and the MLA pattern (485), and a primer may be applied between the MLA pattern (485) and the adhesive member (51). Each primer may have a thickness within a range of approximately 0.004 mm to 0.01 mm, for example, 0.07 mm.

[0169] FIG. 15d is a drawing for explaining a light-receiving element having a light-filtering member formed thereon and a light-receiving element having no light-filtering member formed thereon in an electronic device according to one embodiment.

[0170] FIG. 15d corresponds to the BB' cross-section across the seventh region (67) and the ninth region (69) at identification number 710 of FIG. 7, but is not limited thereto, and may correspond to a cross-section across the seventh region (67) and the fifth region (65) at identification number 710 of FIG. 7, a cross-section across the third region (63) and the ninth region (69), and a cross-section across the third region (63) and the fifth region (65).

[0171] An electronic device according to one embodiment may include a light-receiving element having a light-filtering member formed thereon and a light-receiving element without a light-filtering member formed thereon. For convenience of explanation, the light-receiving element having the light-filtering member formed thereon may be referred to as a first light-receiving element, and the light-receiving element without the light-filtering member may be referred to as a second light-receiving element. However, it should be understood that the terms first and second are used only for the purpose of distinguishing one component from another, and are not used for the purpose of limiting the components by these terms.

[0172] Referring to FIG. 15D, an electronic device according to one embodiment may include a first light-receiving element (e.g., UV cut PD) on which a first light-filtering member (481) is formed and a second light-receiving element (e.g., Normal PD) on which the first light-filtering member (481) is not formed. According to one embodiment, the first light-filtering member (481) may be formed on the first light-receiving element and not formed on the second light-receiving element, the second light-filtering member (482) may be formed on an area corresponding to the first light-receiving element in the glass (470) and not formed on an area corresponding to the second light-receiving element in the glass (470), and the third light-filtering member (483) may be formed on an area corresponding to the partition member (460).

[0173] According to one embodiment, the first light-receiving element and the second light-receiving element may be the same light-receiving element capable of receiving light of the same wavelength band, but is not limited thereto. For example, the first light-receiving element and the second light-receiving element may be different light-receiving elements capable of receiving light of different wavelength bands. Since the first light-receiving element receives light filtered by the first light-filtering member (481) and the second light-filtering member (482), and the second light-receiving element receives light not filtered by the first light-filtering member (481) and the second light-filtering member (482), the wavelength band of the light received by the first light-receiving element is narrower than the wavelength band of the light received by the second light-receiving element. For example, the first light-receiving element can receive light of a wavelength band longer than the UV wavelength band because the UV wavelength band is blocked by the first light-filtering element (481) and the second light-filtering element (482), and the second light-receiving element can receive light of a wavelength band including the UV wavelength band. For example, the wavelength band of the light received by the first light-receiving element can be within a range of approximately 480 nm to 980 nm, and the wavelength band of the light received by the second light-receiving element can be within a range of approximately 340 nm to 980 nm. According to one embodiment, since the fluorescence signal generated by the advanced glycation end product is accurately measured through the first light-receiving element, while light of a wavelength band that is not detected by the first light-receiving element can be detected by the second light-receiving element, various biosignals can be accurately measured.

[0174] An electronic device according to one embodiment may include a plurality of light-receiving elements. Half of the plurality of light-receiving elements may be first light-receiving elements having a first light-filtering member (481) formed thereon, and the other half may be second light-receiving elements without the first light-filtering member (481) formed thereon. For example, the electronic device may include four light-receiving elements, and may include two first light-receiving elements having a first light-filtering member (481) formed thereon, and two second light-receiving elements without the first light-filtering member (481) formed thereon. For example, the electronic device may include two UV cut PDs and two Normal PDs.

[0175] According to one embodiment, a region where a first light-receiving element is disposed (e.g., a ninth region (69)) and a region where a second light-receiving element is disposed (e.g., a seventh region (67)) can be spatially separated from each other by a partition member (460). The partition member (460) is disposed on a circuit board (450), and the ninth region (69) and the seventh region (67) can be spatially separated from each other by the disposed partition member (460).

[0176] The partition member (460) arranged on the circuit board (450) surrounds the light-emitting elements in one region, so that the regions (61, 62, 63, 64, 65, 66, 67, 68, 69 of FIGS. 6 and 7) where the light-emitting elements, the first light-receiving elements, and the second light-receiving elements are arranged can be spatially separated from each other. By the arranged partition member (460), the elements arranged in each region can be isolated from each other. The partition member (460) can surround the side surfaces of the elements arranged on one surface of the circuit board (450) and expose the upper surfaces of the elements so that the light-emitting elements can emit light through the glass (470) and the light-receiving elements can receive light through the glass (470).

[0177] According to one embodiment, a partition member (460) disposed between the circuit board (450) and the glass (470) can spatially separate a light-emitting element and a first light-receiving element closest thereto, spatially separate a first light-receiving element and a second light-receiving element, and spatially separate a light-emitting element and a second light-receiving element closest thereto. Referring to FIGS. 15D and 15A, a width of the partition member (460) between the light-emitting element and the first light-receiving element closest thereto may be greater than a width of the partition member (460) between the first light-receiving element and the second light-receiving element. According to one embodiment, a width of the partition member (460) between the light-emitting element and the first light-receiving element closest thereto may be the same as a width of the partition member (460) between the light-emitting element and the second light-receiving element closest thereto. In one embodiment, the separation distance between the first light-receiving element and the second light-receiving element may be greater than the separation distance between the light-emitting element and the first light-receiving element closest thereto. In one embodiment, the separation distance between the light-emitting element and the first light-receiving element closest thereto may be equal to the separation distance between the light-emitting element and the second light-receiving element closest thereto. FIG. 16 is a drawing for explaining four light-filtering members of an electronic device according to one embodiment. FIG. 16 may correspond to the cross-sectional views of FIGS. 8, 10, 12, and 16, but is not limited thereto. For example, FIG. 16 may correspond to the AA' cross-section of identification number 712 of FIG. 7, the cross-section across the first region (61) and the fifth region (65) in identification number 710 of FIG. 7, the cross-section across the first region (61) and the ninth region (69), and the cross-section across the sixth region (66) and the fifth region (65).

[0178] An electronic device according to one embodiment may include four light-filtering members (481, 482, 483, 484). A first light-filtering member (481) may be formed on a light-receiving element, a second light-filtering member (482) may be formed on an area of ​​glass (470) corresponding to the light-receiving element, a third light-filtering member (483) may be formed on an area of ​​glass (470) corresponding to the partition member (460), and a fourth light-filtering member (484) may be formed on an opposite surface of glass (470) to a surface on which the second light-filtering member (482) is formed.

[0179] According to one embodiment, the second light-filtering member (482) may be formed on one side of the window corresponding to the light-receiving element in the glass (470), and the fourth light-filtering member (484) may be formed on the opposite side of the one side of the window on which the second light-filtering member (482) is formed. The fourth light-filtering member (484) may have the same area as the second light-filtering member (482) and may be formed at the same position on the upper and lower surfaces of the window, but is not limited thereto.

[0180] When the fourth light-filtering member (484) has a larger area than the second light-filtering member (482) in the glass (470), the fourth light-filtering member (484) may obstruct the path of light emitted from the light-emitting element. Therefore, the fourth light-filtering member (484) may be formed to have a smaller area than the second light-filtering member (482).

[0181] The fourth light-filtering member (484) may be formed on the glass (470) using the same material and the same method as the second and third light-filtering members (482, 483). For example, the fourth light-filtering member (483) may be formed by depositing silicon dioxide (SiO2) and niobium pentoxide (Nb2O5) on the glass (470) through sputtering. The first, second, third, and fourth light-filtering members (481, 482, 483, 484) may be a coating layer or film formed on the light-receiving element and the glass (470).

[0182] FIG. 17 is a drawing showing an example of an electronic device according to one embodiment being a ring-type electronic device.

[0183] Referring to FIG. 17, a ring-type electronic device (500) may include an optical sensor for measuring a user's biosignal. According to one embodiment, the optical sensor may include a light-emitting unit (170), a first light-receiving unit (172), and a second light-receiving unit (174). For example, the light-emitting unit (170) may include at least one of a UV light-emitting element, a blue light-emitting element, a violet light-emitting element, a green light-emitting element, a red light-emitting element, or an IR light-emitting element.

[0184] The second light-receiving portion (174) may include a light-filtering member (176). The light-filtering member (176) may be formed on the light-receiving element of the second light-receiving portion (174). In addition, the light-filtering member (176) may be formed on an area corresponding to the light-receiving element on the inner circumferential surface of the ring-shaped electronic device (500).

[0185] FIG. 18A is a diagram illustrating an example in which a portion of fluorescence generated by a user's body and UV light emitted from a UV light emitting element is blocked by a light filtering member, according to one embodiment.

[0186] The light-emitting element of the electronic device may be a UV light-emitting element, and the UV light-emitting element may be an LED or a laser that emits UV light (18-1) in a wavelength range of about 320 nm to 365 nm. The peak wavelength of the light emitted by the UV light-emitting element may be included in the range of about 320 nm to 365 nm, but is not limited thereto. For example, the peak wavelength or center wavelength of the light emitted by the UV light-emitting element may be included in the range of about 360 nm to 370 nm.

[0187] For example, when UV light (18-1) 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 (18-2), and the electronic device can estimate the user's AGEs by measuring the fluorescent signal (18-2) generated from the user's skin.

[0188] The fluorescence signal (18-2) may have a wavelength range of approximately 380 nm to 600 nm.

[0189] In one embodiment, a light-filtering member can pass light (18-3) longer than a specific wavelength within a range of about 480 nm to 520 nm and block light shorter than the specific wavelength. The cut-on wavelength of the light-filtering member can be a wavelength within a range of about 480 nm to 520 nm. For example, the light-filtering member can be a long-pass filter having a cut-on wavelength of about 500 nm, blocking light with a wavelength shorter than about 500 nm, and passing light with a wavelength longer than about 500 nm. In one embodiment, the light-filtering member can be a bandpass filter that passes light (18-3) with a wavelength range of about 480 nm to 520 nm and blocks light with a wavelength outside the wavelength range.

[0190] To receive the fluorescence signal (18-2) in a wider wavelength range, a light-filtering member having a lower cut-on wavelength can be used. Considering the blocking performance of a realistic light-filtering member, for example, the optical density (OD), a light-filtering member having an appropriate cut-on wavelength can be used in an electronic device. For example, when a light-filtering member having a transmittance of 0.0001 (OD of 4) or lower is used, the cut-on wavelength of the light-filtering member considering the wavelength and magnitude of UV light and the wavelength and magnitude of the fluorescence signal can be approximately 500 nm.

[0191] According to one embodiment, the fluorescence signal (18-2) includes visible light having a center wavelength longer than the cut-on wavelength, and the visible light can pass through the light-filtering member to enter the light-receiving element. The first visible light having a center wavelength shorter than the cut-on wavelength in the fluorescence signal (18-2), i.e., the first visible light located on the left side of the wavelength band of 18-3 in FIG. 18A, is blocked by the light-filtering member, and the second visible light having a center wavelength longer than the cut-on wavelength in the fluorescence signal (18-2) can pass through the light-filtering member to reach the light-receiving element. Since the intensity of the fluorescence signal is significantly smaller than the intensity of UV light, it is important to block UV light over a wider wavelength range than to receive the fluorescence signal over a wider wavelength range, and the cut-on wavelength of the light-filtering member considering this trade-off relationship may be a wavelength selected within a range of approximately 480 nm to 520 nm. For example, the cut-on wavelength of the light-filtering member may be approximately 500 nm. Referring to FIG. 18A, the fluorescent signal (18-2) may have a wavelength within a range of approximately 380 nm to 600 nm. For example, the first visible light having a center wavelength shorter than the cut-on wavelength in the fluorescent signal (18-2) may include blue light having a wavelength within a range of approximately 450 nm to 495 nm, and violet light having a wavelength within a range of approximately 380 nm to 450 nm. For example, the second visible light having a center wavelength longer than the cut-on wavelength in the fluorescent signal (18-2) may include green light having a wavelength within a range of approximately 495 nm to 570 nm, yellow light having a wavelength within a range of approximately 570 nm to 590 nm, and orange light having a wavelength within a range of approximately 590 nm to 600 nm.

[0192] Referring to FIG. 18a, since the fluorescence signal (18-2) has a relatively greater intensity in the green light wavelength band than in other visible light wavelength bands, the light-receiving element of the electronic device (e.g., UV cut PD of FIG. 7) may include a PD corresponding to the wavelength band of green light, for example, a Green PD, in order to receive green light.

[0193] Referring to FIG. 18a, since the fluorescent signal (18-2) has a wavelength in the range of 380 nm to 600 nm, the light-receiving element of the electronic device (e.g., the UV cut PD of FIG. 7) may include a Green PD corresponding to the wavelength band of the green light in order to receive green light having a wavelength in the range of approximately 495 nm to 570 nm, but is not limited thereto. For example, the light-receiving element of the electronic device (e.g., the UV cut PD of FIG. 7) may include PDs corresponding to the wavelength bands of the green light and the yellow light in order to receive green light having a wavelength in the range of approximately 495 nm to 570 nm and yellow light having a wavelength in the range of approximately 570 nm to 590 nm. For example, a light-receiving element of an electronic device (e.g., a UV cut PD of FIG. 7) may include PDs corresponding to wavelength bands of green light, yellow light, and orange light to receive green light having a wavelength in a range of about 495 nm to 570 nm, yellow light having a wavelength in a range of about 570 nm to 590 nm, and orange light having a wavelength in a range of about 590 nm to 600 nm.

[0194] FIG. 18a illustrates that the fluorescent signal (18-2) has a wavelength within the range of 380 nm to 600 nm, but the fluorescent signal (18-2) may have a wavelength of 600 nm or more, and the second visible light having a center wavelength longer than the cut-on wavelength in the fluorescent signal (18-2) may include green light having a wavelength in the range of about 495 nm to 570 nm, yellow light having a wavelength in the range of about 570 nm to 590 nm, and orange light having a wavelength in the range of about 590 nm to 630 nm. According to one embodiment, a light-receiving element of an electronic device (e.g., a UV cut PD of FIG. 7) may include PDs corresponding to wavelength bands of green light, yellow light, and orange light to receive green light having a wavelength ranging from about 495 nm to 570 nm, yellow light having a wavelength ranging from about 570 nm to 590 nm, and orange light having a wavelength ranging from about 590 nm to 630 nm.

[0195] Figure 18b is a diagram illustrating the intensity of UV light passing through PET, TAC, resin, and modified resin. Figure 18c is a diagram illustrating the intensity of light generated when UV light reacts with the resin and modified resin.

[0196] Figure 18b is a graph showing the intensity of UV light passing through each of four materials along the horizontal wavelength axis, on the vertical axis.

[0197] UV light emitted toward each material (18-4, 18-5, 18-6, 18-7) passes through each material (18-4, 18-5, 18-6, 18-7) and reacts with each material (18-4, 18-5, 18-6, 18-7) to generate a fluorescence signal over a wavelength range other than the UV light wavelength range. For example, PET (18-4) transmits UV light in the UV light wavelength range and reacts to UV light to generate a fluorescence signal with a relatively stronger magnitude than other materials (18-5, 18-6, 18-7) in a wavelength range longer than the UV light wavelength range. For example, TAC (18-6) transmits UV light in the UV light wavelength range and reacts to UV light to generate a fluorescence signal with a relatively smaller magnitude than other materials (18-4, 18-5, 18-7) in a wavelength range longer than the UV light wavelength range. Therefore, TAC(18-6) has low reactivity with UV light and is suitable for use as a base film (4830 in FIGS. 15b and 15c).

[0198] A resin (18-7) modified to be non-reactive to UV light, for example, a resin formed using a substance that does not react with UV light as an initiator or a resin cured under UV light in an atmosphere of inert gases such as nitrogen and argon, has lower reactivity to UV light than the unmodified resin (18-5). Therefore, the modified resin (18-7) has a lower reactivity to UV light and is suitable for use as a BM pattern (e.g., 483 in FIGS. 15b and 15c).

[0199] Figure 18c is a diagram illustrating the intensity of light generated when UV light reacts with a resin and a modified resin. Figure 18c is a graph showing the intensity of a fluorescence signal generated when UV light reacts with a resin and a modified resin along the horizontal wavelength axis and the vertical axis.

[0200] A resin (18-9) modified to be non-reactive to UV light, for example, a resin formed using a substance that does not react with UV light as an initiator or a resin that is UV-cured in an atmosphere of inert gases such as nitrogen and argon, has lower reactivity to UV light than the unmodified resin (18-8). The resin (18-9) with lower reactivity to UV light by modifying the resin to form a sophisticated pattern is suitable for use as a BM pattern (e.g., 483 in FIGS. 15b and 15c) or an MLA pattern (e.g., 485 in FIG. 15c).

[0201] Figure 19 is a block diagram of an electronic device according to one embodiment.

[0202] 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)).

[0203] 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.

[0204] 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.

[0205] 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).

[0206] 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).

[0207] 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).

[0208] 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.

[0209] 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.

[0210] 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).

[0211] 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.

[0212] 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.

[0213] 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).

[0214] 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.

[0215] 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.

[0216] 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).

[0217] 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.

[0218] 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).

[0219] 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.

[0220] 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).

[0221] 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.

[0222] 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)).

[0223] 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 another 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.According to 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.

[0224] According to one embodiment, the electronic device (1901) may correspond to the electronic devices (100, 300, 400, 500) described above in 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, 300, 400, 500) described above in FIGS. 1 to 18.

[0225] According to the present disclosure, an electronic device for measuring a biosignal (e.g., an electronic device (100) of FIG. 1, an electronic device (300) of FIG. 3, an electronic device (400) of FIG. 4, and an electronic device (1901) of FIG. 19) may be provided. The electronic device may include a housing (110) including a first surface and a second surface opposite to the first surface. The electronic device may include glass (470) disposed on the second surface of the housing. The electronic device may include a circuit board (450) disposed within the housing. The electronic device may include a light-emitting element disposed on the circuit board, the light-emitting element emitting first light through the glass. The electronic device may include a light-receiving element disposed on the circuit board, the light-receiving element receiving at least a portion of second light generated in response to the first light reacting to the body of the user wearing the electronic device through the glass. The electronic device may include a partition member (460) disposed between the light-emitting element and the light-receiving element on the one surface of the circuit board. The electronic device may include at least two light-filtering members (481, 482) formed between the glass and the light-receiving element to block light having a wavelength shorter than a first wavelength.

[0226] According to one embodiment, the at least two light-filtering members may include a first light-filtering member formed on the light-receiving element and a second light-filtering member formed on an area of ​​the glass corresponding to the light-receiving element.

[0227] In one embodiment, the first light may include ultraviolet light in the ultraviolet wavelength range, and the second light may include visible light having a center wavelength longer than the first wavelength. The at least two light-filtering members may block reflected light of the ultraviolet light from entering the light-receiving element, and the visible light may pass through the at least two light-filtering members to enter the light-receiving element.

[0228] In one embodiment, the second light may include a first visible light having a center wavelength shorter than the first wavelength and a second visible light having a center wavelength longer than the first wavelength. The at least two light-filtering members may block the first visible light from entering the light-receiving element. The second visible light may pass through the at least two light-filtering members to enter the light-receiving element.

[0229] According to one embodiment, the electronic device includes a memory (e.g., memory (1930) of FIG. 19) for storing instructions; and one or more processors (e.g., processor (1920) of FIG. 19), wherein when the instructions are individually or collectively executed by the one or more processors, the electronic device may estimate an advanced glycation end-products (AGEs) value of the user based on the second visible light received from the light-receiving element.

[0230] In one embodiment, the peak wavelength of the first light may be within a range of 360 nm to 370 nm. The first wavelength may be within a range of 480 nm to 520 nm.

[0231] In one embodiment, the first light-filtering member may be in contact with the light-receiving element. The second light-filtering member may be in contact with the glass. The first light-filtering member and the second light-filtering member may be spaced apart from each other.

[0232] According to one embodiment, the first light-filtering member and the second light-filtering member can be spaced apart from each other within a range of 0.36 mm to 0.37 mm.

[0233] According to one embodiment, the light-emitting element may include at least two light-emitting elements. The light-receiving element may include at least two light-receiving elements.

[0234] According to one embodiment, the light-receiving element having at least two light-filtering members formed thereon is a first light-receiving element, and the electronic device may further include a second light-receiving element having not the at least two light-filtering members formed thereon.

[0235] According to one embodiment, the at least two light-filtering members may further include a third light-filtering member (483) formed on an area corresponding to the partition member in the glass, avoiding an area corresponding to the light-emitting element.

[0236] According to one embodiment, the at least two light-filtering members may further include a third light-filtering member formed by extending from the second light-filtering member.

[0237] In one embodiment, the third light-filtering member may cover a wider area of ​​the glass than the first light-filtering member and the second light-filtering member. The second light-filtering member may cover a wider area of ​​the glass than the first light-filtering member.

[0238] According to one embodiment, the glass may further include a micro lens array (MLA) formed on an area corresponding to the light-emitting element to uniformly spread the first light emitted by the light-emitting element.

[0239] According to one embodiment, the glass may further include a fourth light-filtering member formed on an opposite surface of the surface on which the second light-filtering member is formed.

[0240] According to one embodiment, the bulkhead member may be formed of a black material that blocks the transmission of light.

[0241] According to one embodiment, the device may further include an adhesive member (50, 51) formed of a black material that blocks the transmission of light and is disposed between the partition member and the glass. The partition member may be attached to the glass by the adhesive member.

[0242] In one embodiment, the first light-filtering member may include silicon nitride (SiN), and the second light-filtering member may include niobium pentoxide (Nb2O5).

[0243] Furthermore, according to the present disclosure, a wearable electronic device for measuring a biosignal (e.g., an electronic device (100) of FIG. 1, an electronic device (300) of FIG. 3, an electronic device (400) of FIG. 4, an electronic device (1901) of FIG. 19) may be provided. The wearable electronic device may include a memory for storing instructions (e.g., a memory (1930) of FIG. 19), one or more processors (e.g., a processor (1920) of FIG. 19), and a display (e.g., a display (120) of FIG. 3, a display module (1960) of FIG. 19). The wearable electronic device may include a housing (110) including a front surface on which the display is disposed. The wearable electronic device may include a glass (470) disposed on a rear surface of the housing and in contact with a body of a user wearing the wearable electronic device. The wearable electronic device may include a circuit board (450) disposed within the housing. The wearable electronic device may include a light-emitting element disposed on the circuit board that emits ultraviolet light through the glass. The wearable electronic device may include a light-receiving element disposed on the circuit board that receives a fluorescence signal generated when the ultraviolet light reflects (reacts) on the body of a user wearing the wearable electronic device. The wearable electronic device may include a partition member disposed on the one surface of the circuit board that surrounds the light-emitting element and spatially separates the light-emitting element and the light-receiving element. The wearable electronic device may include at least two light-filtering members (481, 482) formed between the glass and the light-receiving element that block light having a wavelength shorter than a first wavelength.

[0244] According to one embodiment, the at least two light-filtering members may include a first light-filtering member formed on the light-receiving element and a second light-filtering member formed on an area of ​​the glass corresponding to the light-receiving element. The instructions, when individually or collectively executed by the one or more processors, may cause the wearable electronic device to control the light-emitting element to emit the ultraviolet light. The instructions, when individually or collectively executed by the one or more processors, may cause the wearable electronic device to detect the fluorescence signal received through the light-receiving element. The instructions, when individually or collectively executed by the one or more processors, may cause the wearable electronic device to estimate an advanced glycation end-products (AGEs) value of the user wearing the wearable electronic device based on an intensity of the detected fluorescence signal. The above commands, when individually or jointly executed by the one or more processors, may cause the wearable electronic device to display the estimated final glycation end product value through the display.

[0245] In one embodiment, the fluorescent signal may include visible light having a center wavelength longer than the first wavelength. The at least two light-filtering elements may block reflected light of the ultraviolet light from entering the light-receiving element. The visible light may pass through the at least two light-filtering elements and enter the light-receiving element.

[0246] In one embodiment, the fluorescence signal may include a first visible light having a center wavelength shorter than the first wavelength and a second visible light having a center wavelength longer than the first wavelength. The at least two light-filtering elements may block the first visible light from entering the light-receiving element. The second visible light may pass through the at least two light-filtering elements and enter the light-receiving element.

[0247] In one embodiment, the first wavelength may be within a range of 480 nm to 520 nm. The first light-filtering member may be in contact with the light-receiving element. The second light-filtering member may be in contact with the glass. The first light-filtering member and the second light-filtering member may be spaced apart from each other.

[0248] According to one embodiment, the at least two light-filtering members may further include a third light-filtering member (483) formed on an area corresponding to the partition member in the glass, avoiding an area corresponding to the light-emitting element.

[0249] 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.

[0250] 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.

[0251] 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).

[0252] 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.

[0253] 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.

[0254] 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 an electronic device for measuring biological signals, A housing comprising a first side and a second side opposite to the first side; Glass disposed on the second surface of the housing and in contact with the body of a user wearing the electronic device; A circuit board disposed within the housing; A light emitting element disposed on the circuit board and emitting first light through the glass; A light-receiving element disposed on the circuit board, the light-receiving element receiving at least a portion of the second light generated in response to the first light reacting to the body of the user wearing the electronic device through the glass; A partition member disposed between the light-emitting element and the light-receiving element on the one surface of the circuit board; and An electronic device comprising at least two light-filtering members formed between the glass and the light-receiving element to block light having a wavelength shorter than a first wavelength, wherein the at least two light-filtering members include a first light-filtering member formed on the light-receiving element and a second light-filtering member formed on an area of ​​the glass corresponding to the light-receiving element.

2. In paragraph 1, The above first light includes ultraviolet light in the ultraviolet wavelength range, The second light comprises visible light having a center wavelength longer than the first wavelength, The at least two light-filtering elements block the reflected light of the ultraviolet light from entering the light-receiving element, An electronic device wherein the visible light passes through the at least two light-filtering elements and enters the light-receiving element.

3. In paragraph 1, The second light includes a first visible light having a center wavelength shorter than the first wavelength and a second visible light having a center wavelength longer than the first wavelength, wherein the at least two light-filtering elements block the first visible light from entering the light-receiving element, An electronic device wherein the second visible light passes through the at least two light-filtering elements and enters the light-receiving element.

4. In paragraph 3, memory for storing commands; and Containing one or more processors, When said instructions are executed by said one or more processors, said electronic device causes: An electronic device that estimates the user's advanced glycation end-products (AGEs) value based on the second visible light received from the light-receiving element.

5. In paragraph 1, The peak wavelength of the first light is within the range of 360 nm to 370 nm, An electronic device wherein the first wavelength is within a range of 480 nm to 520 nm.

6. In paragraph 1, The above first light-filtering member is in contact with the light-receiving element, The second light-filtering member is in contact with the glass, An electronic device wherein the first light-filtering member and the second light-filtering member are spaced apart from each other.

7. In paragraph 6, An electronic device wherein the first light-filtering member and the second light-filtering member are spaced apart from each other within a range of 0.36 mm to 0.37 mm.

8. In paragraph 1, The light emitting element comprises at least two light emitting elements, An electronic device, wherein the light-receiving element comprises at least two light-receiving elements.

9. In paragraph 1, The light-receiving element having at least two light-filtering members formed thereon is a first light-receiving element, An electronic device further comprising a second light-receiving element in which at least two light-filtering elements are not formed.

10. In paragraph 1, The above at least two light-filtering elements: An electronic device further comprising a third light-filtering member formed on an area corresponding to the partition wall member in the glass, avoiding an area corresponding to the light-emitting element.

11. In paragraph 10, The third light-filtering member covers a wider area of ​​the glass than the first light-filtering member and the second light-filtering member, An electronic device wherein the second light-filtering member covers a wider area of ​​the glass than the first light-filtering member.

12. In paragraph 10, An electronic device further comprising a micro lens array (MLA) formed on an area corresponding to the light emitting element in the glass and uniformly spreading the first light emitted by the light emitting element.

13. In paragraph 1, The above bulkhead member is formed of a black material that blocks the transmission of light, The first light-filtering member comprises silicon nitride (SiN), An electronic device wherein the second light-filtering member comprises niobium pentoxide (Nb2O5).

14. In paragraph 1, It further includes an adhesive member formed of a black material that is placed between the bulkhead member and the glass and blocks the transmission of light. An electronic device wherein the bulkhead member is attached to the glass by the adhesive member.

15. In a wearable electronic device for measuring biosignals, Memory that stores instructions; One or more processors; display; A housing including a front surface on which the display is arranged; Glass disposed on the rear of the housing and in contact with the body of a user wearing the wearable electronic device; A circuit board disposed within the housing; A light emitting element disposed on the circuit board and emitting ultraviolet light through the glass; A light-receiving element disposed on the circuit board, the light-receiving element receiving a fluorescence signal generated when the ultraviolet light is reflected (reacted) on the body of the user wearing the wearable electronic device; A partition member arranged on the one surface of the circuit board to surround the light-emitting element and spatially separate the light-emitting element and the light-receiving element; and At least two light-filtering members formed between the glass and the light-receiving element to block light of a wavelength shorter than a first wavelength, wherein the at least two light-filtering members include a first light-filtering member formed on the light-receiving element and a second light-filtering member formed on an area of ​​the glass corresponding to the light-receiving element, The above instructions, when individually or collectively executed by the one or more processors, cause the wearable electronic device to: By controlling the above light-emitting element, the light-emitting element emits the ultraviolet light, Detecting the fluorescence signal received through the above light-receiving element, Based on the intensity of the detected fluorescence signal, the advanced glycation end-products (AGEs) value of the user wearing the wearable electronic device is estimated, A wearable electronic device that displays an estimated final glycation end product value through the display.

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