Wearable device comprising sensor

Abstract

The wearable device may comprise: an insulating member which forms a first surface that is in contact with a part of the body of a user wearing the wearable device; and an optical sensor which is supported by being surrounded by the insulating member and which is configured to detect biometric information of the user. The first surface of the insulating member may comprise: a first section; and a second section surrounded by the first section. The second section includes a Fresnel pattern aligned with the optical sensor, and may be recessed from the first section.

Description

wearable devices containing sensors

[0001] The descriptions below relate to wearable devices that include sensors.

[0002] Wearable devices have transformed the way users monitor their health. Typically worn on the wrist, wearable devices have gained popularity due to their ability to track various biometric parameters, such as heart rate, sleep patterns, and activity levels. However, there is a growing demand for alternative wearable form factors that can offer enhanced functionality, and ring-type wearable devices equipped with biometric sensors are being developed to address this need.

[0003] 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.

[0004] According to one embodiment, a wearable device may include an insulating member forming a first surface that contacts a part of a body of a user wearing the wearable device, and an optical sensor supported by being surrounded by the insulating member and configured to detect biometric information of the user. The first surface of the insulating member may include a first section; and a second section surrounded by the first section. The second section may include a Fresnel pattern aligned with the optical sensor and may be recessed from the first section.

[0005] FIG. 1 illustrates an exemplary wearable device according to one embodiment.

[0006] FIG. 2 is an exploded view of an exemplary wearable device according to one embodiment.

[0007] FIG. 3 is a cross-sectional view illustrating an exemplary wearable electronic device according to one embodiment.

[0008] FIG. 4 is a diagram illustrating an exemplary wearable device according to one embodiment.

[0009] FIG. 5 is a drawing for explaining an exemplary first pattern according to one embodiment.

[0010] FIG. 6 is a diagram illustrating an exemplary wearable device according to one embodiment.

[0011] FIG. 7 is a drawing for explaining an exemplary second pattern according to one embodiment.

[0012] FIG. 8 is a diagram illustrating an exemplary wearable device according to one embodiment.

[0013] FIG. 9 is a drawing showing a pattern of exemplary homes according to one embodiment.

[0014] FIG. 10 is a drawing showing a pattern of exemplary homes according to one embodiment.

[0015] FIG. 11 is a drawing showing a pattern of exemplary homes according to one embodiment.

[0016] FIG. 12 is a cross-sectional view illustrating an exemplary wearable electronic device according to one embodiment.

[0017] FIG. 13 is a drawing for explaining the pattern areas of a light-receiving unit and a light-emitting unit according to one embodiment.

[0018] FIG. 14 is a drawing for explaining the pattern areas of a light-receiving unit and a light-emitting unit according to one embodiment.

[0019] FIG. 15A is a diagram illustrating an exemplary electronic device according to one embodiment.

[0020] Figure 15b is a cross-sectional view taken along line A-A' of Figure 15a.

[0021] Figure 15c is a drawing exemplarily showing the pattern of Figure 15a.

[0022] Figure 15d is a drawing exemplarily showing the pattern of Figure 15a.

[0023] FIG. 16A is a diagram illustrating an exemplary electronic device according to one embodiment.

[0024] Figure 16b is a cross-sectional view taken along line B-B' of Figure 16a.

[0025] FIG. 17 is a diagram illustrating an exemplary electronic device according to one embodiment.

[0026] FIG. 18A is a diagram illustrating an exemplary electronic device according to one embodiment.

[0027] Figure 18b is a cross-sectional view taken along line C-C' of Figure 18a.

[0028] FIG. 19A is a cross-sectional view illustrating an exemplary electronic device according to one embodiment.

[0029] Figure 19b is a cross-sectional view of an electronic device according to a comparative example.

[0030] Figure 19c is a cross-sectional view of an electronic device according to a comparative example.

[0031] FIG. 20 is a diagram showing an example of an electronic device according to one embodiment and an electronic device according to a comparative example.

[0032] FIG. 21 is a diagram illustrating an exemplary electronic device according to one embodiment.

[0033] FIG. 22 is a block diagram of an electronic device within a network environment according to various embodiments.

[0034] FIG. 1 illustrates an exemplary wearable device according to one embodiment. FIG. 2 is an exploded view of an exemplary wearable device according to one embodiment. FIG. 3 is a cross-sectional view illustrating an exemplary wearable electronic device according to one embodiment. FIG. 3 illustrates a cross-section taken along plane (A) of FIG. 1.

[0035] Referring to FIGS. 1, 2, and 3, a wearable device (1) according to one embodiment (e.g., electronic device (2201) of FIG. 22) may be configured to be wearable by a user. For example, the wearable device (1) may have a ring shape with a hole (15) provided therein so that the user can insert the body (or part of the body) (2) (e.g., a finger). However, the present invention is not limited thereto, and the wearable device (1) may have various shapes corresponding to the body in order to be worn on the body of the user.

[0036] A wearable device (1) according to one embodiment may include a housing (10) and a sensor module (20) within the housing (10). The housing (10) may include a frame (11) and an insulating member (12). The sensor module (20) may include a light-emitting unit (22), a first light-receiving unit (24), and a second light-receiving unit (26). The sensor module (20) may further include a substrate (28) on which the light-emitting unit (22), the first light-receiving unit (24), and the second light-receiving unit (26) are disposed.

[0037] In one embodiment, the housing (10) may form the exterior of the wearable device (1). For example, the housing (10) may form or define a first surface (10A), a second surface (10B), and a third surface (10C). When a user wears the wearable device (1), the first surface (10A) may surround the user's body so as to face the user's body (2). The first surface (10A) may at least partially contact the user's body (2). For example, the first region (31), the second region (32), and the third region (33) formed in the first surface (10A) may contact the user's body (2). The first region (31), the second region (32), and the third region (33) may be spaced apart from each other. The first region (31) may be located between the second region (32) and the third region (33). Light emitted from the light emitting portion (22) can be transmitted to the user's body (2) through the first region (31). Light reflected on the user's body (2) can reach the first light receiving portion (24) and the second light receiving portion (26) through the second region (32) and the third region (33). The second surface (10B) can be spaced apart from the first surface (10A) and can face in an opposite direction to the first surface (10A). The third surface (10C) can surround a space between the first surface (10A) and the second surface (10B). For example, the third surface (10C) can extend from the edge of the first surface (10A) to the edge of the second surface (10B). A hole (15) defined by the first surface (10A) can be formed in the housing (10) to accommodate the user's body (2). The first side (10A) can be referred to as the inner surface and the second side (10B) can be referred to as the outer surface.

[0038] In one embodiment, the insulating member (12) of the housing (10) can at least partially form the first surface (10A). For example, the insulating member (12) can form at least a first region (31), a second region (32), and a third region (33) of the first surface (10A). For example, the insulating member (12) can form the first region (31), the second region (32), and the third region (33), and can also form a portion of the first surface (10A) extending from the first region (31), the second region (32), and the third region (33). The second surface (10B) and the third surface (10C) can be formed by the frame (11) of the housing (10), but are not limited thereto. For example, the second side (10B) and / or the third side (10C) may be formed together by the frame (11) and the insulating member (12).

[0039] In one embodiment, the frame (11) of the housing (10) may be formed of metal and / or plastic. The frame (11) and the insulating member (12) may be coupled to each other. For example, the insulating member (12) and the frame (11) may be coupled through a process such as insert injection. For example, the insulating member (12) coupled to the frame (11) may be formed by injecting molten resin into a mold in which the frame (11) is placed, but is not limited thereto. The insulating member (12) may include, for example, a resin such as epoxy, but is not limited thereto.

[0040] The frame (11) may be referred to as a first frame, a first housing, or a first support member, and the insulating member (12) may be referred to as a second frame, a second housing, a second support member, or a non-conductive member. The first to third regions (31, 32, 33) may be referred to as first to third sensing regions, first to third pattern regions, first to third Fresnel pattern regions, or first to third light-collecting regions, respectively.

[0041] In one embodiment, the sensor module (20) may be disposed within the housing (10). The sensor module (20) may be positioned between the first side (10A) and the second side (10B). The sensor module (20) may be at least partially surrounded by an insulating member (12). The sensor module (20) may be at least partially hemmed in by the insulating member. For example, the insulating member (12) may surround the sensor module (20) disposed on the frame (11). Accordingly, the frame (11) and / or the insulating member (12) may support the sensor module (20) and secure the sensor module (20) within the housing (10).

[0042] In one embodiment, the sensor module (20) may be at least partially attached to the frame (11). For example, the first support portion (281), the second support portion (282), and the third support portion (283) of the substrate (28) may be attached to the frame (11), but is not limited thereto.

[0043] In one embodiment, the substrate (28) may include a first support portion (281), a second support portion (282), a third support portion (283), a first connection portion (284), and a second connection portion (285). A light-emitting portion (22) may be disposed on the first support portion (281). For example, the light-emitting portion (22) may be disposed on the first support portion (281) so as to face the first surface (10A). A first light-receiving portion (24) may be disposed on the second support portion (282). For example, the first light-receiving portion (24) may be disposed on the second support portion (282) so as to face the first surface (10A). A second light-receiving portion (26) may be disposed on the third support portion (283). For example, the second light receiving portion (26) can be placed on the third support portion (283) so as to face the first surface (10A).

[0044] In one embodiment, the first support portion (281) may be positioned between the second support portion (282) and the third support portion (283). The first connection portion (284) may extend from the first support portion (281) to the second support portion (282). The first connection portion (284) may connect the first support portion (281) and the second support portion (282). The second connection portion (285) may extend from the first support portion (281) to the third support portion (283). The second connection portion (285) may connect the first support portion (281) and the third support portion (283). The first connection portion (284) may extend from one side of the first support portion (281), and the second connection portion (285) may extend from the other side of the first support portion (281). For example, a first support portion (281) may be positioned between the first connecting portion (284) and the second connecting portion (285).

[0045] In one embodiment, the substrate (28) may include a flexible printed circuit board or a rigid-flex printed circuit board. When the substrate (28) includes the rigid-flex printed circuit board, for example, the first connecting portion (284) and the second connecting portion (285) may be formed as flexible portions, and the first supporting portion (281), the second supporting portion (282), and the third supporting portion (283) may be formed as rigid portions. However, the present invention is not limited to the above-described examples. In one embodiment, the substrate (28) may be at least partially bendable. For example, the substrate (28) may include a bent portion to correspond to the curvature of the first surface (10A) having a ring shape.

[0046] In one embodiment, the second support portion (282) can be tilted with respect to the first support portion (281). For example, the second support portion (282) can be tilted with respect to the first support portion (281) such that the first light-receiving portion (24) faces a second direction (D2) different from the first direction (D1) of the light-emitting portion (22). In one embodiment, the third support portion (283) can be tilted with respect to the first support portion (281). For example, the third support portion (283) can be tilted with respect to the first support portion (281) such that the second light-receiving portion (26) faces a third direction (D3) different from the first direction (D1) of the light-emitting portion (22).

[0047] In one embodiment, the light emitting portion (22) may be positioned between the first light receiving portion (24) and the second light receiving portion (26). The light emitting portion (22), the first light receiving portion (24), and the second light receiving portion (26) may be spaced apart from each other. The light emitting portion (22) may face the first region (31) of the insulating member (12). The light emitting portion (22) may be aligned with the first region (31) of the insulating member (12). The light emitting portion (22) may overlap the first region (31). The first light receiving portion (24) may face the second region (32) of the insulating member (12). The first light receiving portion (24) may be aligned with the second region (32) of the insulating member (12). The first light receiving portion (24) may overlap the second region (32). The second light-receiving portion (26) can face the third region (33) of the insulating member (12). The second light-receiving portion (26) can be aligned with the third region (33) of the insulating member (12). The second light-receiving portion (26) can overlap with the third region (33).

[0048] The light emitting portion (22), the first light receiving portion (24), and the second light receiving portion (26) may be arranged in different directions depending on the curvature of the first surface (10A). For example, the light emitting portion (22) may face a first direction (D1) toward the center (C1) of the hole (15). The first light receiving portion (24) may be inclined with respect to the light emitting portion (22) so as to face a second direction (D2) different from the first direction (D1). The second light receiving portion (26) may be inclined with respect to the light emitting portion (22) and the first light receiving portion (24) so ​​as to face a third direction (D3) different from the first direction (D1) and the second direction (D2). The angle (a1) between the first direction (D1) and the second direction (D2) and the angle (a2) between the first direction (D1) and the third direction (D3) may be, for example, an acute angle, but is not limited thereto. In order for the light from the light emitting unit (22) to be reflected on the body (2) and uniformly received by the first light receiving unit (24) and the second light receiving unit (26), the angle (a1) and the angle (a2) may be substantially equal to each other, but is not limited thereto. The intersection of the first direction (D1) and the second direction (D2) and / or the intersection of the first direction (D1) and the third direction (D3) may be, but is not limited to, the center (C1) of the hole (15).

[0049] In one embodiment, the light emitting portion (22) may be configured to emit light toward the user's body (2). The light emitted from the light emitting portion (22) may pass through the insulating member (12) and be transmitted to the user's body (2). The light from the light emitting portion (22) may be reflected onto the user's body (2). The light reflected onto the user's body (2) may pass through the insulating member (12) and reach the first light receiving portion (24) and the second light receiving portion (26). The first light receiving portion (24) and the second light receiving portion (26) may receive light incident from the outside through the insulating member (12).

[0050] In one embodiment, the wearable device (1) can obtain the user's biometric information using the sensor module (20). The sensor module (20) can detect the user's biometric information based on the light emitted from the light emitting unit (22) and the light received from the light receiving units (24, 26). For example, the biometric information may include, but is not limited to, heart rate and / or saturation of percutaneous oxygen (SpO2). In one embodiment, the sensor module (20) may include, but is not limited to, at least one of an optical sensor, a heartrate measurement (HRM) sensor using photoplethysmography (PPG), and an oxygen saturation sensor. The light emitting unit (22) may include a light emitting diode (LED), and the first light receiving unit (24) and the second light receiving unit (26) may include, but are not limited to, a photo diode.

[0051] Although not shown, the wearable device (1) may include at least one processor (e.g., processor (2220) of FIG. 22) operatively or communicatively connected to the sensor module (20). The at least one processor may be disposed on the substrate (28) of the sensor module (20) or on a printed circuit board independent of the substrate (28).

[0052] FIG. 4 is a diagram illustrating an exemplary wearable device according to one embodiment. FIG. 5 is a diagram illustrating an exemplary first pattern according to one embodiment. FIG. 5 is an enlarged view of area (B) of FIG. 4. In the following, redundant descriptions of components having the same reference numerals as those described above may be omitted.

[0053] Referring to FIGS. 4 and 5, according to one embodiment, the insulating member (12) may include a first portion (121) and a second portion (122) on the first portion (121). The first portion (121) may surround the sensor module (20) and thereby support the sensor module (20). For example, the first portion (121) may surround the light emitting portion (22), the first light receiving portion (24), and the second light receiving portion (26), thereby supporting the light emitting portion (22), the first light receiving portion (24), and the second light receiving portion (26). For example, the first portion (121) may completely surround the light emitting portion (22), the first light receiving portion (24), and the second light receiving portion (26). The second portion (122) may extend from the first portion (121). The second portion (122) may be formed on the first portion (121). The second portion (122), together with the first portion (121), may form a first surface (10A). The second portion (122) may form a first region (31) within the first surface (10A). The first portion (121) may form a portion of the first surface (10A) extending from the first region (31). The first portion (121) and the second portion (122) may be formed of the same material. The first portion (121) and the second portion (122) may have the same chemical composition.

[0054] The light emitting portion (22) can be aligned with respect to the second portion (122) so that light emitted from the light emitting portion (22) is transmitted to the user's body (2) through the second portion (122). For example, the light emitting portion (22) can face the second portion (122). The light emitting portion (22) can overlap the second portion (122).

[0055] In one embodiment, the area of ​​the first surface (10A) overlapping the first light-receiving portion (24) and the second light-receiving portion (26) (e.g., the second area (32) and the third area (33) of FIG. 1) may not have a pattern formed. In this case, the area of ​​the first surface (10A) overlapping the first light-receiving portion (24) and the second light-receiving portion (26) may be formed as a plane or a curved surface having a constant curvature, but is not limited thereto.

[0056] In one embodiment, a first pattern (41) may be formed on the second portion (122). For example, the first pattern (41) may be formed on the first area (or the first surface (10A) of the second portion (122)). The first pattern (41) may come into contact with the body (2) when the user wears the wearable device (1).

[0057] In one embodiment, the first pattern (41) may be configured to focus light from the light emitting portion (22) onto the user's body (2). For example, the first pattern (41) may include a Fresnel pattern (e.g., a concave Fresnel pattern) that focuses light emitted from the light emitting portion (22) below the first pattern (41) onto the user's body. The first pattern (41) may include first grooves (51). Each of the first grooves (51) may be formed in a ring centered around a first point (P1) on the second portion (122) (or the first region (31)). The first grooves (51) may be formed such that the radius of each of the first grooves (51) increases as the distance from the first point (P1) increases. For example, the groove (51a) of the first grooves (51) may have a larger radius than the groove (51b).

[0058] In one embodiment, each of the first grooves (51) may include an inclined surface (511) and a surface (512). The inclined surface (511) may extend away from both the first point (P1) of the second portion (122) and the light-emitting portion (22). For example, the inclined surface (511) located in the +x direction with respect to the first point (P1) may extend in a direction between the +x direction and the +y direction. For example, the inclined surface (511) located in the -x direction with respect to the first point (P1) may extend in a direction between the -x direction and the +y direction. The surface (512) may extend from an edge (E1) of the inclined surface (511) that is furthest from the first point (P1) toward the light-emitting portion (22). For example, the surface (512) may extend in the -y direction from the edge (E1) of the inclined surface (511), but is not limited thereto. The surface (512) may extend between two adjacent inclined surfaces (511). For example, the surface of the groove (51a) may extend from the inclined surface of the groove (51a) to the inclined surface of the groove (51b). The inclined surface (511) of each of the first grooves (51) may be formed concavely, but is not limited thereto. For example, the inclined surfaces (511) of at least some of the first grooves (51) may be formed substantially flat. For example, the inclined surfaces (511) of at least some of the first grooves (51) may be formed convexly. For example, the inclined surface (511) of each of the first grooves (51) may include a concave shape, a convex shape, a substantially flat shape, or a shape combined thereof. The first grooves (51) may be referred to as a first series of concentric annular grooves. The first point (P1) may be, but is not limited to, the center point of the first region (31). In one embodiment, the first pattern (41) may include a recess (51c) formed by an inclined surface (511) extending from the first point (P1).The concave portion (51c) may be located at the center of the first pattern (41), but is not limited thereto. Each of the first grooves (51) may surround the concave portion (51c).

[0059] In one embodiment, the first pattern (41) is described as being formed by annular first grooves (51) surrounding a concave portion (51c), but is not limited thereto. For example, as illustrated in FIG. 15a, each of the concave portion (51c) and the first grooves (51) may extend in parallel.

[0060] In one embodiment, the first pattern (41) of the first portion (121) may be formed by injecting the insulating member (12) through a mold having a shape corresponding to the shape of the first pattern (41), but is not limited thereto. For example, the first pattern (41) of the first portion (121) may also be formed by processing the insulating member (12) using a machine tool such as a CNC (computerized numerical control).

[0061] In one embodiment, light emitted from the light emitting portion (22) can pass through the first portion (121) and the second portion (122) of the insulating member (12). The light emitted from the light emitting portion (22) can be refracted while passing through the first pattern (41) of the second portion (122) and focused on the user's body (2). If the first region (31) is formed flat rather than the first pattern (41), the accuracy of the acquired signal may decrease. When the output of the light emitting portion is increased, there is a problem of increased power consumption. When a concave lens shape is formed in the second portion (122) to focus the light of the light emitting portion on the user's body, the thickness of the second portion (122) required to implement the same optical characteristics as the first pattern (41) increases, which causes a problem of increased size of the wearable device (1). In addition, the concave lens shape may cause a feeling of discomfort or pain to the user when worn, and is also undesirable in terms of design. An independent lens member (e.g., lens (89) of FIG. 20) having the same function as the first pattern (41) can be inserted into the insulating member (12), but this cannot be applied due to the characteristics of the wearable device (1) that requires a thin thickness. In contrast, in one embodiment, by focusing the light of the light emitting unit (22) with the first pattern (41), the efficiency of the sensor module (20) can be improved without increasing the size and power consumption of the wearable device (1). This may be because, through the first pattern (41), the light emitting unit (22) can be focused on a position where the reception efficiency of the light receiving units (24, 26) is increased. In addition, since the first grooves (51) of the first pattern (41) have a fine size, the impact on the user's wearing comfort and design can be reduced. The fine first grooves (51) can provide tactile information to the user, thereby allowing the user to wear the wearable device (1) at an appropriate angle for sensing.In addition, the first pattern (41) can reduce the amount of light leaking outside the wearable device (1) (other than the user's body (2)) by focusing the light of the light emitting portion (22) on the user's body (2).

[0062] FIG. 6 is a diagram illustrating an exemplary wearable device according to one embodiment. FIG. 7 is a diagram illustrating an exemplary second pattern according to one embodiment. FIG. 7 is an enlarged view of area (C) of FIG. 6.

[0063] Referring to FIGS. 6 and 7, according to one embodiment, the insulating member (12) may include a third portion (123) and a fourth portion (124) on a first portion (121). The third portion (123) may extend from the first portion (121). The third portion (123) may be formed on the first portion (121). The third portion (123), together with the first portion (121), may form a first surface (10A). The third portion (123) may form a second region (32) within the first surface (10A). The fourth portion (124) may be spaced apart from the third portion (123). The fourth portion (124) may extend from the first portion (121). The fourth portion (124) may be formed on the first portion (121). The fourth portion (124), together with the first portion (121) and the third portion (123), may form a first surface (10A). The fourth portion (124) may form a third region (33) within the first surface (10A). The first portion (121) may form a portion of the first surface (10A) extending from the edges of the second region (32) and the third region (33). The first portion (121), the third portion (123), and the fourth portion (124) may be formed of the same material. The first portion (121), the third portion (123), and the fourth portion (124) may have the same chemical composition.

[0064] In one embodiment, the first light-receiving portion (24) may be aligned with respect to the third portion (123) such that light reflected from the user's body (2) is received by the first light-receiving portion (24) through the third portion (123). For example, the first light-receiving portion (24) may face the third portion (123). The first light-receiving portion (24) may overlap the third portion (123).

[0065] In one embodiment, the second light receiving portion (26) may be aligned with respect to the fourth portion (124) such that light reflected from the user's body (2) is received by the second light receiving portion (26) through the fourth portion (124). For example, the second light receiving portion (26) may face the fourth portion (124). The second light receiving portion (26) may overlap the fourth portion (124).

[0066] In one embodiment, a region of the first surface (10A) overlapping the light-emitting portion (22) (e.g., the first region (31) of FIG. 1) may not have a pattern formed. In this case, the region of the first surface (10A) overlapping the light-emitting portion (22) may be formed as a plane or a curved surface having a constant curvature, but is not limited thereto.

[0067] In one embodiment, a second pattern (42) may be formed in the third portion (123). For example, the second pattern (42) may be formed in the second area (32) of the third portion (123) (or the first surface (10A) of the third portion (123). The second pattern (42) and the third pattern (43) may come into contact with the body (2) when the user wears the wearable device (1).

[0068] In one embodiment, the second pattern (42) may be configured to focus light reflected from the user's body and incident on the third portion (123) onto the first light-receiving portion (24). For example, the second pattern (42) may include a Fresnel pattern (e.g., a convex Fresnel pattern) that focuses light incident on the second region (32) onto the first light-receiving portion (24). The second pattern (42) may include second grooves (52). Each of the second grooves (52) may be formed in an annular shape centered on a second point (P2) on the third portion (123) (or the second region (32)). The second grooves (52) may be formed such that the radius of each of the second grooves (52) increases as the distance from the second point (P2) increases. For example, the groove (52a) of the second grooves (52) may have a larger radius than the groove (52b).

[0069] In one embodiment, each of the second grooves (52) may include an inclined surface (521) and a surface (522). The inclined surface (521) may extend away from the second point (P2) of the third portion (123) and closer to the first light-receiving unit (24). For example, the inclined surface (521) located in the +x direction with respect to the second point (P2) may extend in a direction between the +x direction and the -y direction. For example, the inclined surface (521) located in the -x direction with respect to the second point (P2) may extend in a direction between the -x direction and the -y direction. The surface (522) may extend away from the first light-receiving unit (24) from an edge (E2) of the inclined surface (521) that is furthest from the second point (P2). For example, the surface (522) may extend in the +y direction from the edge (E2) of the inclined surface (521), but is not limited thereto. The surface (522) may extend between two adjacent inclined surfaces (521). For example, the surface of the groove (52a) may extend from the inclined surface of the groove (52a) to the inclined surface of the groove (52b). The inclined surface (521) of each of the second grooves (52) may be formed convexly, but is not limited thereto. For example, the inclined surfaces (521) of at least some of the second grooves (52) may be formed substantially flat. For example, the inclined surfaces (521) of at least some of the second grooves (52) may be formed concavely. For example, the inclined surface (521) of each of the second grooves (52) may include a concave shape, a convex shape, a substantially flat shape, or a shape combined thereof. The second grooves (52) may be referred to as a second series of concentric annular grooves. The second point (P2) may be, but is not limited to, the center point of the second region (32). In one embodiment, the second pattern (42) may include a convex portion (52c) formed by an inclined surface (521) extending from the second point (P2).The convex portion (52c) may be located at the center of the second pattern (42), but is not limited thereto. Each of the second grooves (52) may surround the convex portion (52c).

[0070] In one embodiment, the second pattern (42) is described as being formed by annular second grooves (52) surrounding the convex portion (52c), but is not limited thereto. For example, as illustrated in FIG. 15a, each of the convex portion (52c) and the second grooves (52) may extend in parallel.

[0071] In one embodiment, the second pattern (42) of the first portion (121) may be formed by injecting the insulating member (12) through a mold having a shape corresponding to the shape of the second pattern (42), but is not limited thereto. For example, the second pattern (42) of the first portion (121) may also be formed by processing the insulating member (12) using a machine tool such as a CNC.

[0072] In one embodiment, light reflected on the user's body (2) can pass through the third part (123) of the insulating member (12) and the first part (121). The light reflected on the user's body (2) can be refracted while passing through the second pattern (42) of the third part (123) and be focused on the first light-receiving part (24). If the second region (32) is formed flat rather than the second pattern (42), the light-receiving efficiency of the first light-receiving part (24) may be reduced. If the output of the light-emitting part (22) is increased to improve this, there is a problem of increased power consumption. If a convex lens shape is formed on the third part (123) to focus the incident light onto the light-receiving part, the thickness of the third part (123) required to implement the same optical characteristics as the second pattern (42) increases, which causes a problem of increased size of the wearable device (1). In addition, the convex lens shape may cause a feeling of foreignness or pain to the user when worn, and is also not desirable in terms of design. An independent lens member having the same function as the second pattern (42) can be inserted into the insulating member (12), but it cannot be applied due to the characteristics of the wearable device (1) that must be thin. In contrast, in one embodiment, by focusing the light incident on the third portion (123) onto the first light-receiving portion (24) through the second pattern (42), the efficiency of the sensor module (20) can be improved without increasing the size and power consumption of the wearable device (1). This may be because the first light-receiving portion (24) can intensively collect biosignals reflected from the user's body (2) through the second pattern (42). In addition, since the second grooves (52) of the second pattern (42) have a fine size, the impact on the user's wearing comfort and design can be reduced. By providing tactile information to the user through the second grooves (52) of a microscopic size, the user can wear the wearable device (1) at an appropriate angle for sensing.In addition, the second pattern (42) can reduce the amount of light leaking outside the wearable device (1) (other than the user's body (2)) by collecting light reflected from the user's body (2) onto the first light receiving unit (24).

[0073] In one embodiment, a third pattern (43) may be formed on the fourth portion (124). For example, the third pattern (43) may be formed on the third region (33) (or the first surface (10A) of the fourth portion (124). For the third pattern (43), the description provided with reference to the second pattern (42) may be applied substantially identically or in a corresponding manner. For example, the third pattern (43) may be configured to focus light reflected off the user's body and incident on the fourth portion (124) onto the second light-receiving portion (26). In one embodiment, by the third pattern (43) focusing light incident on the third portion (123) onto the first light-receiving portion (24), the efficiency of the sensor module (20) may be improved without increasing the size and power consumption of the wearable device (1). The third pattern (43) may include third grooves (53) corresponding to the second grooves (52). For example, each of the third grooves (53) may be formed in an annular shape centered around a third point (P3) on the fourth portion (124) (or the third region (33)). The third grooves (53) may be formed such that the radius of each of the third grooves (53) increases as the distance from the third point (P3) increases. The third grooves (53) of the third pattern (43) may be referred to as a third series of concentric annular grooves. The third pattern (43) may be substantially the same as the second pattern (42), but is not limited thereto.

[0074] The first to third patterns (41, 42, 43) may be referred to as first to third optical patterns, first to third light-gathering patterns, or first to third Fresnel patterns.

[0075] A wearable device (1) according to one embodiment may further include a light-receiving unit, which is not shown. In addition, the wearable device (1) may not include either the first light-receiving unit (24) or the second light-receiving unit (26). For example, the wearable device (1) may not include the second light-receiving unit (26), and in this case, the insulating member (12) may not include the fourth portion (124).

[0076] FIG. 8 is a drawing showing an exemplary wearable device according to an embodiment. Referring to FIG. 8, an insulating member (12) according to an embodiment may include a first portion (121), a second portion (122), a third portion (123), and a fourth portion (124). The second portion (122), the third portion (123), and the fourth portion (124) may be formed on the first portion (121) so as to be spaced apart from each other. The first pattern (41) of the second portion (122) may have a different pattern from the second pattern (42) of the third portion (123) and the third pattern (43) of the fourth portion (124).

[0077] In one embodiment, the first pattern (41) of the second portion (122) can focus light from the light emitting portion (22) onto the user's body (2). The second pattern (42) of the third portion (123) can focus light reflected from and incident on the user's body (2) onto the first light receiving portion (24). The third pattern (43) of the fourth portion (124) can focus light reflected from and incident on the user's body (2) onto the second light receiving portion (26). Through this, the efficiency of the sensor module (20) can be improved.

[0078] FIGS. 9, 10, and 11 are drawings illustrating exemplary patterns of grooves according to an embodiment. Referring to FIG. 9 together with FIG. 8, the grooves (902) may be at least one of the first grooves (51) of the first pattern (41), the second grooves (52) of the second pattern (42), and the third grooves (53) of the third pattern (43). As illustrated in FIG. 9, the shape of each of the grooves (902) may be formed in a circular shape when viewed from above (e.g., when the insulating member (12) is viewed in the -y direction). Referring to FIG. 10 together with FIG. 8, the grooves (1002) may be at least one of the first grooves (51) of the first pattern (41), the second grooves (52) of the second pattern (42), and the third grooves (53) of the third pattern (43). As illustrated in FIG. 10, each of the grooves (1002) may be formed in a square shape (or a square with rounded corners) when viewed from above (e.g., when the insulating member (12) is viewed in the -y direction). However, the present invention is not limited thereto, and various shapes may be possible. For example, referring to FIG. 11 together with FIG. 8, as in the grooves (1102), at least one of the first pattern (41), the second pattern (42), and the third pattern (43) may be formed as a spiral groove extending outward from the center at a point (e.g., the first point (P1) of FIG. 5, the second point (P2) of FIG. 7, or the third point (P3) of FIG. 6).

[0079] FIG. 12 is a cross-sectional view illustrating an exemplary wearable electronic device according to an embodiment. Referring to FIG. 12, the wearable device (1) according to an embodiment may further include a third light-receiving unit (22-1), a second light-emitting unit (24-1), and a third light-emitting unit (26-1). The third light-receiving unit (22-1) may perform the same function as the first light-receiving unit (24) or the second light-receiving unit (26) described above. The second light-emitting unit (24-1) and the third light-emitting unit (26-1) may perform the same function as the light-emitting unit (22) described above.

[0080] In one embodiment, the third light-receiving unit (22-1) may be placed on the first support portion (281). The third light-receiving unit (22-1) may be positioned adjacent to the light-emitting unit (22). The third light-receiving unit (22-1) may be a separate unit distinct from the light-emitting unit (22), but is not limited thereto. For example, the third light-receiving unit (22-1) may be integrated into the light-emitting unit (22). For example, the third light-receiving unit (22-1) and the light-emitting unit (22) may be implemented in one chip.

[0081] In one embodiment, the second light emitting unit (24-1) may be positioned adjacent to the first light receiving unit (24) and may be disposed on the second support portion (282). The second light emitting unit (24-1) may be a separate unit distinct from the first light receiving unit (24), but is not limited thereto. For example, the second light emitting unit (24-1) may be integrated into the first light receiving unit (24). For example, the second light emitting unit (24-1) and the first light receiving unit (24) may be implemented in one chip.

[0082] In one embodiment, the third light-emitting unit (26-1) may be positioned adjacent to the second light-receiving unit (26) and may be disposed on the third support portion (283). The third light-emitting unit (26-1) may be a separate unit distinct from the second light-receiving unit (26), but is not limited thereto. For example, the third light-emitting unit (26-1) may be integrated into the second light-receiving unit (26). For example, the third light-emitting unit (26-1) and the second light-receiving unit (26) may be implemented in one chip.

[0083] FIGS. 13 and 14 are drawings for explaining pattern areas of a light-receiving unit and a light-emitting unit according to an embodiment. Referring to FIGS. 13 and 14, a wearable device (1) according to an embodiment may include a first unit (62) and a second unit (64). When the first unit (62) and the second unit (64) are viewed from above, an area (50) may overlap the first unit (62) and the second unit (64). When the first unit (62) and the second unit (64) are viewed from above, the first unit (62) may be closer to the center of the area (50) than the second unit (64). The area (50) may include a first pattern area (72) and a second pattern area (74).

[0084] Referring to FIG. 12 together, the region (50) may include a first region (31), a second region (32), or a third region (33). The first pattern region (72) may include a concave Fresnel pattern (e.g., the first pattern (41) of FIG. 4) and / or a convex Fresnel pattern (e.g., the second pattern (42) of FIG. 6). The second pattern region (74) may include the concave Fresnel pattern and / or the convex Fresnel pattern.

[0085] In one embodiment, the first unit (62) may include a light-emitting portion (22) and / or a third light-receiving portion (22-1), and the second unit (64) may include a third light-receiving portion (22-1) and / or a light-emitting portion (22). The region (50) may include the first region (31). For example, when the first unit (62) includes the light-emitting portion (22), the first pattern region (72) may be formed with the concave Fresnel pattern. In addition, when the second unit (64) includes the third light-receiving portion (22-1), the second pattern region (74) may be formed with the convex Fresnel pattern. For another example, when the first unit (62) includes the third light-receiving portion (22-1), the first pattern region (72) may be formed with the convex Fresnel pattern. In addition, when the second unit (64) includes the light-emitting portion (22), the second pattern region (74) may be formed with the concave Fresnel pattern. For another example, the first unit (62) may include the light-emitting portion (22) and the third light-receiving portion (22-1). That is, the light-emitting portion (22) and the third light-receiving portion (22-1) may be formed as a single chip integrated into the first unit (62). In this case, the first pattern region (72) may be formed with a composite pattern (e.g., the pattern (96) of FIG. 18A) in which the concave Fresnel pattern and the convex Fresnel pattern are combined. For example, one region of the first pattern region (72) may be formed with the convex Fresnel pattern, and the remaining region of the first pattern region (72) may be formed with the concave Fresnel pattern. The one region is not limited to one continuous region in the first pattern region (72). Additionally, the remaining area is not limited to one continuous area in the first pattern area (72). When the first unit (62) includes a light-emitting unit (22) and a third light-receiving unit (22-1), the second unit (64) may be omitted, include a different light-emitting unit, or include a different light-receiving unit.Corresponding to the other light-emitting portion or the other light-receiving portion, the second pattern area (74) can also be formed as the concave Fresnel pattern or the convex Fresnel pattern.

[0086] In one embodiment, the first unit (62) may include a second light-emitting portion (24-1) and / or a first light-receiving portion (24), and the second unit (64) may include a first light-receiving portion (24) and / or a second light-emitting portion (24-1). The region (50) may include a second region (32). For example, when the first unit (62) includes a second light-emitting portion (24-1), the first pattern region (72) may be formed with the concave Fresnel pattern. In addition, when the second unit (64) includes a first light-receiving portion (24), the second pattern region (74) may be formed with the convex Fresnel pattern. For another example, when the first unit (62) includes a first light-receiving portion (24), the first pattern region (72) may be formed with the convex Fresnel pattern. In addition, when the second unit (64) includes the second light-emitting portion (24-1), the second pattern region (74) may be formed with the concave Fresnel pattern. For another example, the first unit (62) may include the second light-emitting portion (24-1) and the first light-receiving portion (24). That is, the second light-emitting portion (24-1) and the first light-receiving portion (24) may be formed as a single chip integrated into the first unit (62). In this case, the first pattern region (72) may be formed with a composite pattern in which the concave Fresnel pattern and the convex Fresnel pattern are combined. For example, one region of the first pattern region (72) may be formed with the convex Fresnel pattern, and the remaining region of the first pattern region (72) may be formed with the concave Fresnel pattern. The one region is not limited to one continuous region in the first pattern region (72). Additionally, the remaining area is not limited to one continuous area in the first pattern area (72). When the first unit (62) includes the second light-emitting unit (24-1) and the first light-receiving unit (24), the second unit (64) may be omitted, may include a different light-emitting unit, or may include a different light-receiving unit.Corresponding to the other light-emitting portion or the other light-receiving portion, the second pattern area (74) can also be formed as the concave Fresnel pattern or the convex Fresnel pattern.

[0087] In one embodiment, the first unit (62) may include a third light-emitting portion (26-1) and / or a second light-receiving portion (26), and the second unit (64) may include a second light-receiving portion (26) and / or a third light-emitting portion (26-1). The region (50) may include a third region (33). For example, when the first unit (62) includes the third light-emitting portion (26-1), the first pattern region (72) may be formed with the concave Fresnel pattern. In addition, when the second unit (64) includes the second light-receiving portion (26), the second pattern region (74) may be formed with the convex Fresnel pattern. For another example, when the first unit (62) includes the second light-receiving portion (26), the first pattern region (72) may be formed with the convex Fresnel pattern. In addition, when the second unit (64) includes the third light-emitting portion (26-1), the second pattern region (74) may be formed with the concave Fresnel pattern. For another example, the first unit (62) may include the third light-emitting portion (26-1) and the second light-receiving portion (26). That is, the third light-emitting portion (26-1) and the second light-receiving portion (26) may be formed as a single chip integrated into the first unit (62). In this case, the first pattern region (72) may be formed with a composite pattern in which the concave Fresnel pattern and the convex Fresnel pattern are combined. For example, one region of the first pattern region (72) may be formed with the convex Fresnel pattern, and the remaining region of the first pattern region (72) may be formed with the concave Fresnel pattern. The one region is not limited to one continuous region in the first pattern region (72). Additionally, the remaining area is not limited to one continuous area in the first pattern area (72). When the first unit (62) includes the third light-emitting unit (26-1) and the second light-receiving unit (26), the second unit (64) may be omitted, include a different light-emitting unit, or include a different light-receiving unit.Corresponding to the other light-emitting portion or the other light-receiving portion, the second pattern area (74) can also be formed as the concave Fresnel pattern or the convex Fresnel pattern.

[0088] As illustrated in FIG. 13, the first pattern region (72) and the second pattern region (74) may form concentric circles, but are not limited thereto. For example, as illustrated in FIG. 14, the first pattern region (72) and the second pattern region (74) may be formed as separate regions whose center points are spaced apart from each other. When the first pattern region (72) and the second pattern region (74) are formed as concentric circles, the Fresnel pattern of the first pattern region (72) and the Fresnel pattern of the second pattern region (74) may also be formed as patterns that share the same center point, but are not limited thereto.

[0089] The first pattern area (72) and the second pattern area (74) are illustrated as having circular edges, but are not limited thereto, and may have edges of various shapes (e.g., polygons such as triangles and squares).

[0090] FIG. 15A is a diagram illustrating an exemplary electronic device according to one embodiment. FIG. 15B is a cross-sectional view taken along line A-A' of FIG. 15A. For convenience of explanation, the user's body is also illustrated in FIG. 15B. FIG. 15C is a diagram illustrating an exemplary pattern of FIG. 15A. FIG. 15D is a diagram illustrating an exemplary pattern of FIG. 15A.

[0091] Referring to FIG. 15A, according to one embodiment, a pattern (92) (e.g., the first pattern (41) of FIG. 5, the first pattern area (72) of FIG. 14, or the second pattern area (74) of FIG. 14) may be formed on an insulating member (12) of a wearable device (1). For example, the pattern (92) may be formed on a first surface (10A) of the wearable device (1) formed by the insulating member (12).

[0092] Referring to FIGS. 15A and 15B, a wearable device (1) according to an embodiment may include a substrate (75) (e.g., the substrate (28) of FIG. 12) and a light-emitting portion (82). The light-emitting portion (82) may be disposed on a support portion of the substrate (75) (e.g., the first support portion (281), the second support portion (282), or the third support portion (283) of FIG. 12). The substrate (75) and the light-emitting portion (82) may be positioned within the insulating member (12). The light-emitting portion (82) may include, for example, the light-emitting portion (22) of FIG. 3, the light-emitting portion (22) of FIG. 12, the second light-emitting portion (24-1) of FIG. 12, or the third light-emitting portion (26-1) of FIG. 12.

[0093] In one embodiment, the light emitting portion (82) can be aligned with respect to the pattern (92). For example, the light emitting portion (82) can be positioned below the pattern (92). For example, when viewed from above the first surface (10A), the light emitting portion (82) can be covered by the pattern (92). For example, when viewed from above the first surface (10A), the light emitting portion (82) can overlap the pattern (92). When viewed from above the first surface (10A), the area of ​​the pattern (92) can be formed to be larger than the area of ​​the light emitting portion (82). For example, when viewed from above the first surface (10A), the light emitting portion (82) can be positioned within the edge of the pattern (92).

[0094] In one embodiment, light emitted from the light emitting portion (82) can be focused on the user's body (2) (e.g., blood vessels) by being refracted by the pattern (92).

[0095] Referring to FIGS. 15A, 15B, and 15C, the pattern (92) may include a recessed portion (92d), first grooves (92a), second grooves (92b), and third grooves (92c). In one embodiment, the recessed portion (92d), first grooves (92a), second grooves (92b), and third grooves (92c) may extend parallel to each other. In one embodiment, each of the recessed portion (92d), first grooves (92a), second grooves (92b), and third grooves (92c) may extend in one direction. For example, the one direction may be a direction extending clockwise or counterclockwise along an inner surface (e.g., the first surface (10A)) of the wearable device (1).

[0096] In one embodiment, the recess (92d) may be positioned between the first grooves (92a). The first grooves (92a) may be positioned between the second grooves (92b). The second grooves (92b) may be positioned between the third grooves (92c).

[0097] In one embodiment, the first grooves (92a) may be formed by a first surface (e.g., surface (412) in FIG. 5) extending from one edge of the recess (92d) toward the light-emitting portion (82) and / or the substrate (75) and a first inclined surface (e.g., inclined surface (511) in FIG. 5) extending from one edge of the first surface away from the light-emitting portion (82) and / or the substrate (75).

[0098] In one embodiment, the second grooves (92b) may be formed by a second surface (e.g., surface (412) in FIG. 5) extending from one edge of the first grooves (92a) (e.g., one edge of the first inclined surface of the first grooves (92a)) toward the light emitting portion (82) and / or the substrate (75) and a second inclined surface (e.g., inclined surface (511) in FIG. 5) extending from one edge of the second surface away from the light emitting portion (82) and / or the substrate (75).

[0099] In one embodiment, the third grooves (92c) may be formed by a third surface (e.g., surface (412) in FIG. 5) extending from one edge of the second grooves (92b) (e.g., one edge of the second inclined surface of the second grooves (92b)) toward the light emitting portion (82) and / or the substrate (75) and a third inclined surface (e.g., inclined surface (511) in FIG. 5) extending from one edge of the third surface away from the light emitting portion (82) and / or the substrate (75).

[0100] In one embodiment, each of the first inclined surface, the second inclined surface, and the inclined surface may include a concave curved surface, a convex curved surface, a plane, or a combination thereof, similar to the inclined surface (511) of FIG. 5.

[0101] In one embodiment, the pattern (92) may include, but is not limited to, a striped pattern formed by a recess (92d), first grooves (92a), second grooves (92b), and third grooves (92c). For example, referring to FIG. 15d, the first grooves (92a), second grooves (92b), and third grooves (92c) of the pattern (92) may be formed in a 'U' shape surrounding the recess (92d).

[0102] FIG. 16A is a diagram illustrating an exemplary electronic device according to one embodiment. FIG. 16B is a cross-sectional view taken along line B-B' of FIG. 16A. For convenience of explanation, the user's body is also illustrated in FIG. 16B.

[0103] Referring to FIG. 16A, according to one embodiment, a pattern (94) (e.g., the second pattern (42) of FIG. 7, the first pattern area (72) of FIG. 14, or the second pattern area (74) of FIG. 14) may be formed on an insulating member (12) of a wearable device (1). For example, the pattern (94) may be formed on a first surface (10A) of the wearable device (1) formed by the insulating member (12).

[0104] Referring to FIGS. 16A and 16B, a wearable device (1) according to an embodiment may include a substrate (77) (e.g., the substrate (28) of FIG. 12) and a light-receiving unit (84). The light-receiving unit (84) may be disposed on a support portion of the substrate (77) (e.g., the first support portion (281), the second support portion (282), or the third support portion (283) of FIG. 12). The substrate (77) and the light-receiving unit (84) may be positioned within the insulating member (12). The light-receiving unit (84) may include, for example, the first light-receiving unit (24) of FIG. 3, the second light-receiving unit (26) of FIG. 3, or the third light-receiving unit (22-1) of FIG. 12.

[0105] In one embodiment, the light-receiving portion (84) can be aligned with respect to the pattern (94). For example, the light-receiving portion (84) can be positioned below the pattern (94). For example, when viewed from above the first surface (10A), the light-receiving portion (84) can be covered by the pattern (94). For example, when viewed from above the first surface (10A), the light-receiving portion (84) can overlap the pattern (94). When viewed from above the first surface (10A), the area of ​​the pattern (94) can be formed to be larger than the area of ​​the light-receiving portion (84). For example, when viewed from above the first surface (10A), the light-receiving portion (84) can be positioned within the edge of the pattern (94).

[0106] In one embodiment, light reflected by the user's body (2) (e.g., blood vessels) may be refracted by the pattern (94) and focused on the light receiving portion (84).

[0107] FIG. 17 is a diagram illustrating an exemplary electronic device according to an embodiment. Referring to FIG. 17, in one embodiment, patterns (92, 94) may be spaced apart from each other. Accordingly, a light-emitting unit (82) aligned with pattern (92) and a light-receiving unit (84) aligned with pattern (94) may be spaced apart from each other, but is not limited thereto. For example, although pattern (92) and pattern (94) are formed as different patterns, pattern (92) may extend continuously from the edge of pattern (94), unlike in the drawing.

[0108] FIG. 18A is a diagram illustrating an exemplary electronic device according to one embodiment. FIG. 18B is a cross-sectional view taken along line C-C' of FIG. 18A.

[0109] Referring to FIG. 18A, according to one embodiment, a pattern (96) may be formed on an insulating member (12) of a wearable device (1). For example, the pattern (96) may be formed on a first surface (10A) of the wearable device (1) formed by the insulating member (12).

[0110] In one embodiment, the pattern (96) may include a pattern that is a combination of the pattern (92) of FIG. 15A and the pattern (94) of FIG. 16A. For example, the pattern (96) may have a first region (961) and a second region (962) formed with the pattern (92), and a third region (963) and a fourth region (964) formed with the pattern (94). For example, the first region (961) and the second region (962) may be formed with a concave Fresnel pattern, and the third region (963) and the fourth region (964) may be formed with a convex Fresnel pattern.

[0111] In one embodiment, the first region (961), the second region (962), the third region (963), and the fourth region (964) may be regions divided into four equal parts based on two diagonal lines connecting the corners of the pattern (96) that face each other, but the division of regions of the pattern (96) is not limited to the illustrated example.

[0112] Referring to FIGS. 18A and 18B, a wearable device (1) according to one embodiment may include a substrate (79) (e.g., substrate (28) of FIG. 12) and a light-emitting portion (86). The light-emitting portion (86) may be disposed on a support portion of the substrate (79) (e.g., first support portion (281), second support portion (282), or third support portion (283) of FIG. 12). The substrate (79) and the light-emitting portion (86) may be positioned within an insulating member (12).

[0113] In one embodiment, the light-emitting unit (86) may include a light-emitting unit configured to emit light (e.g., the light-emitting unit (22) of FIG. 3, the second light-emitting unit (24-1) of FIG. 12, or the third light-emitting unit (26-1) of FIG. 12) and a light-receiving unit configured to receive light incident from the outside (e.g., the first light-receiving unit (24) of FIG. 3, the second light-receiving unit (26) of FIG. 3, or the third light-receiving unit (22-1) of FIG. 12). In one embodiment, the light-emitting unit (86) may include one chip including the light-emitting unit and the light-receiving unit.

[0114] In one embodiment, the light-emitting portion (86) can be aligned with respect to the pattern (96). For example, the light-emitting portion (86) can be positioned below the pattern (96). For example, when viewed from above the first surface (10A), the light-emitting portion (86) can be covered by the pattern (96). For example, when viewed from above the first surface (10A), the light-emitting portion (86) can overlap the pattern (96). When viewed from above the first surface (10A), the area of ​​the pattern (96) can be formed to be larger than the area of ​​the light-emitting portion (86). For example, when viewed from above the first surface (10A), the light-emitting portion (86) can be positioned within the edge of the pattern (96).

[0115] In one embodiment, light emitted by the light-emitting unit (86) can be focused on the user's body (2) (e.g., blood vessels) by being refracted by the first region (961) and the second region (962) of the pattern (96). In addition, light reflected by the user's body (2) and incident on the insulating member (12) can be focused on the light-emitting unit (86) by being refracted by the third region (963) and the fourth region (964) of the pattern (96).

[0116] FIG. 19a is a cross-sectional view illustrating an exemplary electronic device according to an embodiment. FIG. 19b is a cross-sectional view illustrating an electronic device according to a comparative example. FIG. 19c is a cross-sectional view illustrating an electronic device according to a comparative example.

[0117] Referring to FIG. 19A, a wearable device (1) according to one embodiment may include an optical sensor (88) surrounded by an insulating member (12). The optical sensor (88) may include, for example, a light-emitting unit (e.g., a light-emitting unit (82) of FIG. 15B), a light-receiving unit (e.g., a light-receiving unit (84) of FIG. 16B), or a light-receiving unit (e.g., a light-emitting unit (86) of FIG. 18B).

[0118] In one embodiment, a pattern (98) covering an optical sensor (88) may be formed on the insulating member (12). For example, the pattern (98) may be formed on a first surface (10A) of the insulating member (12). In one embodiment, the pattern (98) may include the pattern (92) of FIG. 15A, the pattern (94) of FIG. 16A, or the pattern (96) of FIG. 18A. In one embodiment, the optical sensor (88) may be aligned with respect to the pattern (98).

[0119] In one embodiment, the first surface (10A) may include a first section (A1) and a second section (A2). The first section (A1) may surround the second section (A2). For example, the first section (A1) may define a boundary of the second section (A2). The second section (A2) may be a surface or region formed by the pattern (98).

[0120] In one embodiment, the first section (A1) of the first surface (10A) may extend in a circular shape. The second section (A2) may be positioned below a virtual section (a3) ​​that is continuous with the first section (A1). For example, the second section (A2) may be recessed from the first section (A1). This allows the pattern (98) to be formed without increasing the thickness of the wearable device (1). That is, the efficiency of the optical sensor (88) may be improved by the pattern (98) without increasing the thickness of the wearable device (1).

[0121] In a comparative example, referring to FIG. 19b, a protrusion (97) may be formed on the first surface (10A) of the insulating member (12) to improve the efficiency of the optical sensor (88) by refracting light. The protrusion (97) of the comparative example may form a second section (A2) of the first surface (10A). However, the protrusion (97) may be formed above a virtual section (a3) ​​that is continuous with the first section (A1) of the first surface (10A). For example, the protrusion (97) may protrude from the first section (A1). That is, when the protrusion (97) is applied to improve the efficiency of the optical sensor (88), the thickness of the wearable device (1) may increase. In addition, the protrusion (97) may deteriorate the wearing comfort of the wearable device (1).

[0122] In a comparative example, referring to FIG. 19c, a pattern (99) may be formed on the first surface (10A) of the insulating member (12) to improve the efficiency of the optical sensor (88) by refracting light. The pattern (99) may form a second section (A2) of the first surface (10A). The pattern (99) of the comparative example may not be finer than the pattern (98) of FIG. 19a. For example, the pattern (99) of the comparative example may have a smaller number of grooves per unit area or a smaller width (or height) of each groove than the pattern (98) of FIG. 19a. Therefore, the pattern (99) of the comparative example must be formed thicker than the pattern (98) in order to satisfy the same optical characteristics. Accordingly, the pattern (99) may be formed above a virtual section (a3) ​​that is continuous with the first section (A1) of the first surface (10A). For example, the pattern (99) may protrude from the first section (A1). That is, when a fine pattern (99) is applied to improve the efficiency of the optical sensor (88), the thickness of the wearable device (1) may increase. In addition, the pattern (99) may deteriorate the wearing comfort of the wearable device (1).

[0123] FIG. 20 is a diagram showing an example of an electronic device according to an embodiment and electronic devices according to a comparative example. In FIG. 12, a wearable device (1) according to an embodiment and electronic devices (203, 205) according to a comparative example are illustrated together. In FIG. 12, optical sensors (88) of electronic devices (1, 203, 205) are illustrated at relatively the same positions, and an imaginary line (L1) is illustrated that contacts the first surface (10A) of the wearable device (1) in order to compare the heights of the first surfaces (10A) of the electronic devices (1, 203, 205).

[0124] The electronic device (203) of the comparative example may include a lens (89) positioned on the optical sensor (88). The wearable device (1) according to one embodiment may not include a lens, such as the lens (89), with which the optical sensor (88) is aligned and separated from the insulating member (12). The lens (89) may be positioned within the insulating member (12). However, since the lens (89) is a separate component from the insulating member (12), the thickness of the insulating member (12) required to stably support the lens (89) by wrapping the lens (89) may increase. This causes the thickness to increase, as if the first surface (10A) of the electronic device (203) is positioned higher than the imaginary line (L1).

[0125] As in the electronic device (205) of the comparative example, the protrusion (97) for improving the efficiency of the optical sensor (88) is necessarily formed to protrude from the first surface (10A). Accordingly, the portion where the protrusion (97) is formed is positioned higher than the imaginary line (L1), thereby increasing the thickness of the electronic device (205).

[0126] On the other hand, the pattern (98) of the wearable device (1) according to one embodiment can improve the efficiency of the optical sensor (88) without causing an increase in the thickness of the wearable device (1) or a decrease in the wearing comfort. This may be because the pattern (98) of the wearable device (1) according to one embodiment is formed directly on the insulating member (12), unlike the lens (89). In addition, the pattern (98) of the wearable device (1) according to one embodiment may include a pattern with a fine structure, unlike the protrusion (97) or the pattern (89, FIG. 20).

[0127] FIG. 21 is a diagram illustrating an exemplary electronic device according to one embodiment. Referring to FIG. 21, in one embodiment, the pattern (98) may include a central portion (98c) and grooves (98a) surrounding the central portion (98c). The central portion (98c) may include, for example, a concave portion (51c) of FIG. 5, a convex portion (52c) of FIG. 7, or a concave portion (92d) of FIG. 15c.

[0128] For example, but not limited to, the pattern (98) formed on the first surface (10A) of the insulating member (12) may be formed by computerized numerical control machining (CNC machining) or a molding process using silicon. For example, but not limited to, the molding process may be performed in a pressurized chamber to remove air bubbles within the insulating member (12) during molding of the pattern (98).

[0129] In one embodiment, the width (W2) of the pattern (98) may be smaller than the width (W1) of the wearable device (1). The width (W1) and the width (W2) may be lengths based on a direction perpendicular to a direction in which the first surface (10A) extends substantially circularly (e.g., clockwise or counterclockwise). The width (W2) of the pattern (98) may be defined by the width (d1) of the center portion (98c) of the pattern (98) and the width (d2) of the grooves (98a).

[0130] For example, when the width (W1) of the wearable device (1) is about 7 mm, the width (W2) of the pattern (98) for the required optical characteristics may be about 4 mm. In this case, since the CNC machining and molding process using silicon have a high resolution (e.g., 0.01 mm or less), a center (98c) having a width (d1) of about 1 mm and seven grooves (98a) having a width (d2) of about 0.2 mm may be formed within the pattern (98) having a width (W2) of about 4 mm. However, the specific shape of the pattern (98) is not limited by the above-described numerical example. For example, the widths (d2) of the grooves (98a) may be formed differently, respectively. In addition, the shape of the pattern (98) may vary depending on the width (W1) of the wearable device (1), the distance from the sensor, or the required performance of the sensor.

[0131] According to one embodiment, a wearable device (e.g., the wearable device (1) of FIG. 1) may include a housing (e.g., the housing (10) of FIG. 4), a sensor module (e.g., the sensor module (20) of FIG. 4) within the housing, and an insulating member (e.g., the insulating member (12) of FIG. 4). The sensor module may include a light-emitting unit (e.g., the light-emitting unit (22) of FIG. 4) and a light-receiving unit (e.g., the first light-receiving unit (24) of FIG. 4). The insulating member may include a first portion (e.g., the first portion (121) of FIG. 4) and a second portion (e.g., the second portion (122) of FIG. 4) on the first portion. The first portion may support the light-emitting unit and the light-receiving unit by surrounding the light-emitting unit and the light-receiving unit. A Fresnel pattern (e.g., the first pattern (41) of FIG. 4) may be formed on the second portion. The above light-emitting portion may be aligned with the second portion. The first portion and the second portion on which the Fresnel pattern is formed may be in contact with a part of the body of a user wearing the wearable device (e.g., body (2) of FIG. 4).

[0132] In one embodiment, the Fresnel pattern of the second portion can focus light from the light emitting portion onto the part of the user's body.

[0133] In one embodiment, the light receiving unit can receive light reflected from the part of the user's body.

[0134] In one embodiment, the sensor module can obtain biometric information of the user based on light received from the light receiving unit.

[0135] In one embodiment, the biometric information may include the user's heart rate information or oxygen saturation information.

[0136] In one embodiment, the light-receiving unit may be a first light-receiving unit (e.g., the first light-receiving unit (24) of FIG. 4). The sensor module may include a second light-receiving unit (e.g., the second light-receiving unit (26) of FIG. 4) within the housing. The first portion may support the second light-receiving unit by surrounding the second light-receiving unit. The light-emitting unit may be spaced apart from the first light-receiving unit and the second light-receiving unit, and may be positioned between the first light-receiving unit and the second light-receiving unit.

[0137] In one embodiment, the first light receiving unit and the second light receiving unit can receive light reflected from the part of the body of the user through the first part.

[0138] In one embodiment, the Fresnel pattern of the second portion may be a first Fresnel pattern (e.g., the first pattern (41) of FIG. 8). The insulating member may include a third portion (e.g., the third portion (123) of FIG. 8) on the first portion and a fourth portion (e.g., the fourth portion (124) of FIG. 8) on the first portion. A second Fresnel pattern (e.g., the second pattern (42) of FIG. 8) may be formed on the third portion. A third Fresnel pattern (e.g., the third pattern (43) of FIG. 8) may be formed on the fourth portion. The first light-receiving portion may be aligned with the third portion, and the second light-receiving portion may be aligned with the fourth portion.

[0139] In one embodiment, the first Fresnel pattern may have a different pattern from the second Fresnel pattern and the third Fresnel pattern.

[0140] In one embodiment, the second Fresnel pattern may be substantially identical to the third Fresnel pattern.

[0141] In one embodiment, the first light receiving unit can receive light reflected from the part of the user's body through the first part and the third part. The second light receiving unit can receive light reflected from the part of the user's body through the first part and the fourth part.

[0142] In one embodiment, the second Fresnel pattern may be configured to focus light incident from the outside onto the third portion onto the first light-receiving portion. The third Fresnel pattern may be configured to focus light incident from the outside onto the fourth portion onto the second light-receiving portion.

[0143] In one embodiment, the first Fresnel pattern may include first grooves (e.g., first grooves (51) of FIG. 5). Each of the first grooves may be formed in a ring centered around a point of the second portion (e.g., the first point (P1) of FIG. 5). The first grooves may be formed such that a radius of each of the first grooves gradually increases as the distance from the point of the second portion increases. Each of the first grooves may include a first inclined surface (e.g., inclined surface (511) of FIG. 5) and a first surface (e.g., surface (512) of FIG. 5). The first inclined surface may extend away from both the point of the second portion and the light-emitting portion. The first surface may extend from an edge of the first inclined surface that is farthest from the point of the second portion (e.g., edge (E1) of FIG. 5) toward the light-emitting portion. The second Fresnel pattern may include second grooves (e.g., second grooves (52) of FIG. 7). Each of the second grooves may be formed in a ring centered on a point of the third portion (e.g., the second point (P2) of FIG. 7). The second grooves may be formed such that a radius of each of the second grooves gradually increases as the distance from the point of the third portion increases. Each of the second grooves may include a second inclined surface (e.g., inclined surface (521) of FIG. 7) and a second surface (e.g., surface (522) of FIG. 7). The second inclined surface may extend away from the point of the third portion and closer to the first light-receiving unit. The second surface may extend in a direction away from the first light-receiving unit from an edge of the second inclined surface that is farthest from the point of the third portion (e.g., edge (E2) of FIG. 7).

[0144] In one embodiment, the shape of each of the first grooves may be formed as a circle (e.g., grooves (902) of FIG. 9) or a square (e.g., grooves (1002) of FIG. 10) when the second portion is viewed from above.

[0145] In one embodiment, the Fresnel pattern may include a spiral groove extending away from a first point of the second portion (e.g., the first point (P1) of FIG. 5).

[0146] A wearable device (e.g., the wearable device (1) of FIG. 1) according to one embodiment may include a housing (e.g., the housing (10) of FIG. 6), a sensor module (e.g., the sensor module (20) of FIG. 6) within the housing, and an insulating member (e.g., the insulating member (12) of FIG. 6). The sensor module may include a light-emitting unit (e.g., the light-emitting unit (22) of FIG. 6) and a light-receiving unit (e.g., the first light-receiving unit (24) of FIG. 6). The insulating member may include a first portion (e.g., the first portion (121) of FIG. 6) and a second portion (e.g., the third portion (123) of FIG. 6) on the first portion. The first portion may support the light-emitting unit and the light-receiving unit by surrounding the light-emitting unit and the light-receiving unit. A Fresnel pattern (e.g., the second pattern (42) of FIG. 6) may be formed on the second portion. The above light-receiving portion may be aligned with the second portion. The first portion and the second portion on which the Fresnel pattern is formed may be in contact with a part of the body of a user wearing the wearable device (e.g., body (2) of FIG. 6).

[0147] In one embodiment, the Fresnel pattern of the second portion may be configured to focus light incident on the second portion from the outside onto the light receiving portion.

[0148] In one embodiment, the light-receiving unit may be a first light-receiving unit (e.g., the first light-receiving unit (24) of FIG. 6). The sensor module may include a second light-receiving unit (e.g., the second light-receiving unit (26) of FIG. 6) within the housing. The first portion may support the second light-receiving unit by surrounding the second light-receiving unit. The light-emitting unit may be spaced apart from the first light-receiving unit and the second light-receiving unit, and may be positioned between the first light-receiving unit and the second light-receiving unit.

[0149] In one embodiment, the Fresnel pattern of the second portion may be a first Fresnel pattern (e.g., the second pattern (42) of FIG. 6). The insulating member may include a third portion (e.g., the fourth portion (124) of FIG. 6) on the first portion. A second Fresnel pattern (e.g., the third pattern (43) of FIG. 6) may be formed on the fourth portion. The second light-receiving portion may be aligned with the third portion.

[0150] In one embodiment, the first light receiving unit can receive light reflected from the part of the user's body through the first part and the second part. The second light receiving unit can receive light reflected from the part of the user's body through the first part and the third part.

[0151] According to one embodiment, a wearable device (e.g., a wearable device (1) of FIG. 1) may include an insulating member (e.g., an insulating member (12) of FIG. 3) forming a first surface (e.g., a first surface (10A) of FIG. 1) that contacts a part of a body of a user wearing the wearable device (e.g., a body (2) of FIG. 1), and an optical sensor (e.g., an optical sensor (88) of FIG. 19A) that is supported by being surrounded by the insulating member and configured to detect biometric information of the user. The first surface of the insulating member may include a first section (e.g., a first section (A1) of FIG. 19A) and a second section (e.g., a second section (A2) of FIG. 19A) surrounded by the first section. The second section may include a Fresnel pattern aligned with the optical sensor (e.g., pattern (88) of FIG. 19a) and may be recessed from the first section. In one embodiment, the optical sensor may include a light-emitting portion configured to emit light toward the first surface (e.g., light-emitting portion (22) of FIG. 12, second light-emitting portion (24-1), third light-emitting portion (26-1), or light-emitting portion (82) of FIG. 15a). The Fresnel pattern may include a first pattern configured to focus light from the light-emitting portion onto a part of the user's body (e.g., first pattern (41) of FIG. 4, pattern (92) of FIG. 15a, first region (961) of FIG. 18a, or second region (962) of FIG. 18a). In one embodiment, the optical sensor may include a light receiving unit (e.g., the third light receiving unit (22-1) of FIG. 12, the first light receiving unit (24), the second light receiving unit (26), or the light receiving unit (84) of FIG. 16a) configured to receive light reflected from a part of the body of the user. The Fresnel pattern may include a second pattern (e.g., the second pattern (42) of FIG. 6, the third pattern (43), or the pattern (94) of FIG. 16a) configured to focus light incident on the first surface onto the light receiving unit. In one embodiment, the first section may extend in a substantially circular shape.The second section may be located below a virtual section continuous to the first section (e.g., the virtual section (a3) ​​of FIG. 19a).

[0152] In one embodiment, the biometric information may include heart rate information or oxygen saturation information.

[0153] The wearable device according to one embodiment may include a first light-receiving unit (e.g., the first light-receiving unit (24) of FIG. 12) supported by being surrounded by the insulating member, and a second light-receiving unit (e.g., the second light-receiving unit (26) of FIG. 12) supported by being surrounded by the insulating member. The second section may include a second pattern (e.g., the second pattern (42) of FIG. 6 or the pattern (94) of FIG. 16a) aligned with the first light-receiving unit and configured to focus light incident on the first surface onto the first light-receiving unit, and a third pattern (e.g., the third pattern (43) of FIG. 6 or the pattern (94) of FIG. 16a) aligned with the second light-receiving unit and configured to focus light incident on the first surface onto the second light-receiving unit.

[0154] In one embodiment, the light emitting portion (e.g., light emitting portion (22) of FIG. 12) may be spaced apart from the first light receiving portion and the second light receiving portion, and may be positioned between the first light receiving portion and the second light receiving portion.

[0155] In one embodiment, the optical sensor may include a light receiving unit (e.g., the third light receiving unit (22-1) of FIG. 12 or the light receiving unit (84) of FIG. 16a) configured to receive light reflected from a part of the body of the user.

[0156] In one embodiment, the second section, in which the light-receiving portion is aligned, may include another pattern (pattern (94) of FIG. 16A) configured to focus light reflected from a portion of the user's body onto the light-receiving portion. The other pattern may be spaced apart from the first pattern.

[0157] In one embodiment, the light-receiving portion and the light-emitting portion of the optical sensor may be integrated into a single chip. The Fresnel pattern may include a fourth pattern (e.g., the third region (963) of FIG. 18A or the fourth region (964) of FIG. 18A) configured to focus light incident on the first surface onto the light-receiving portion. The fourth pattern may extend from an edge of the first pattern.

[0158] In one embodiment, the first pattern may have a different pattern than the second pattern, the third pattern, or the fourth pattern.

[0159] In one embodiment, the first pattern may comprise a concave Fresnel pattern. The second pattern, the third pattern, or the fourth pattern may comprise a convex Fresnel pattern.

[0160] In one embodiment, the first light receiving unit may be configured to receive light reflected from a part of the user's body through the insulating member. The second light receiving unit may be configured to receive light reflected from a part of the user's body through the insulating member.

[0161] The wearable device according to one embodiment may not include a lens (e.g., lens (89) of FIG. 20) aligned with the optical sensor and separated from the insulating member.

[0162] In one embodiment, the first pattern may include first grooves (e.g., first grooves (51) of FIG. 5). Each of the first grooves may be formed in a ring centered around a point (e.g., first point (P1) of FIG. 5). The first grooves may be formed such that the radius of each of the first grooves gradually increases as the distance from the point increases. Each of the first grooves may be formed by a first inclined surface (e.g., inclined surface (511) of FIG. 5) extending away from both the point and the light-emitting portion, and a first surface (e.g., surface (512) of FIG. 5) extending from an edge of the first inclined surface (e.g., edge (E1) of FIG. 5) that is farthest from the point and toward the light-emitting portion. The second pattern may include second grooves (e.g., second grooves (52) of FIG. 7). Each of the second grooves may be formed in a ring centered on a point of the second pattern (e.g., the second point (P2) of FIG. 7), and the second grooves may be formed such that the radius of each of the second grooves gradually increases as the distance from the point of the second pattern increases. Each of the second grooves may be formed by a second inclined surface (e.g., the inclined surface (521) of FIG. 7) extending away from the point of the second pattern and closer to the first light-receiving portion, and a second surface (e.g., the surface (522) of FIG. 7) extending in a direction away from the first light-receiving portion from an edge of the second inclined surface (e.g., the edge (E2) of FIG. 7) that is furthest from the point of the second pattern.

[0163] In one embodiment, the shape of each of the first grooves may be formed as a circle (e.g., grooves (902) of FIG. 9) or a square (e.g., grooves (1002) of FIG. 10).

[0164] In one embodiment, the first pattern may include a spiral groove (e.g., grooves (1102) of FIG. 11).

[0165] In one embodiment, the first pattern may include a recess (e.g., recess (92d) in FIG. 15a), first grooves surrounding the recess (e.g., first grooves (92a) in FIG. 15a), second grooves extending parallel to the first grooves and surrounding the first grooves (e.g., second grooves (92b) in FIG. 15a), and third grooves extending parallel to the second grooves and surrounding the second grooves (e.g., third grooves (92c) in FIG. 15a).

[0166] In one embodiment, the recessed portion may extend parallel to the first grooves. Each of the recessed portion, the first grooves, the second grooves, and the third grooves may extend clockwise along the perimeter of the first surface of the insulating member.

[0167] In one embodiment, when viewed from above on the first surface, the shape of each of the first grooves, the second grooves, and the third grooves may include a 'U' shape.

[0168] In one embodiment, the Fresnel pattern of the insulating member may be formed through a molding process using silicon or CNC machining.

[0169] According to an embodiment, the wearable device may include a substrate (e.g., substrate (28) of FIG. 12) supported by being surrounded by the insulating member. The substrate may include a first support portion (e.g., first support portion (281) of FIG. 12) on which the optical sensor is disposed, a second support portion (e.g., second support portion (282) of FIG. 12) on which the second light-receiving unit is disposed, a third support portion (e.g., third support portion (283) of FIG. 12) on which the third light-receiving unit is disposed, a first connection portion (e.g., first connection portion (284) of FIG. 12) connecting the first support portion and the second support portion, and a second connection portion (e.g., second connection portion (285) of FIG. 12) connecting the first support portion and the third support portion.

[0170] FIG. 22 is a block diagram of an electronic device within a network environment according to various embodiments. Referring to FIG. 22, in a network environment (2200), an electronic device (2201) may communicate with an electronic device (2202) via a first network (2298) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (2204) or a server (2208) via a second network (2299) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (2201) may communicate with the electronic device (2204) via the server (2208). According to one embodiment, the electronic device (2201) may include a processor (2220), a memory (2230), an input module (2250), an audio output module (2255), a display module (2260), an audio module (2270), a sensor module (2276), an interface (2277), a connection terminal (2278), a haptic module (2279), a camera module (2280), a power management module (2288), a battery (2289), a communication module (2290), a subscriber identification module (2296), or an antenna module (2297). In some embodiments, the electronic device (2201) may omit at least one of these components (e.g., the connection terminal (2278)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (2276), camera module (2280), or antenna module (2297)) may be integrated into one component (e.g., display module (2260)).

[0171] The processor (2220) may control at least one other component (e.g., a hardware or software component) of the electronic device (2201) connected to the processor (2220) by executing, for example, software (e.g., a program (2240)), 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 (2220) may store commands or data received from other components (e.g., a sensor module (2276) or a communication module (2290)) in a volatile memory (2232), process the commands or data stored in the volatile memory (2232), and store result data in a non-volatile memory (2234). According to one embodiment, the processor (2220) may include a main processor (2221) (e.g., a central processing unit or an application processor) or an auxiliary processor (2223) (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 (2221). For example, when the electronic device (2201) includes the main processor (2221) and the auxiliary processor (2223), the auxiliary processor (2223) may be configured to use less power than the main processor (2221) or to be specialized for a given function. The auxiliary processor (2223) may be implemented separately from the main processor (2221) or as a part thereof.

[0172] The auxiliary processor (2223) may control at least a portion of functions or states associated with at least one component (e.g., the display module (2260), the sensor module (2276), or the communication module (2290)) of the electronic device (2201), for example, on behalf of the main processor (2221) while the main processor (2221) is in an inactive (e.g., sleep) state, or together with the main processor (2221) while the main processor (2221) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (2223) (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 (2280) or a communication module (2290)). In one embodiment, the auxiliary processor (2223) (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 (2201) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (2208)). 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.

[0173] The memory (2230) can store various data used by at least one component (e.g., the processor (2220) or the sensor module (2276)) of the electronic device (2201). The data can include, for example, software (e.g., the program (2240)) and input data or output data for commands related thereto. The memory (2230) can include volatile memory (2232) or non-volatile memory (2234).

[0174] The program (2240) may be stored as software in memory (2230) and may include, for example, an operating system (2242), middleware (2244), or an application (2246).

[0175] The input module (2250) can receive commands or data to be used in a component of the electronic device (2201) (e.g., a processor (2220)) from an external source (e.g., a user) of the electronic device (2201). The input module (2250) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0176] The audio output module (2255) can output audio signals to the outside of the electronic device (2201). The audio output module (2255) 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. According to one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0177] The display module (2260) can visually provide information to an external party (e.g., a user) of the electronic device (2201). The display module (2260) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (2260) 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.

[0178] The audio module (2270) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (2270) can acquire sound through the input module (2250), output sound through the sound output module (2255), or an external electronic device (e.g., electronic device (2202)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (2201).

[0179] The sensor module (2276) can detect the operating status (e.g., power or temperature) of the electronic device (2201) 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 (2276) 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.

[0180] The interface (2277) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (2201) with an external electronic device (e.g., the electronic device (2202)). In one embodiment, the interface (2277) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0181] The connection terminal (2278) may include a connector through which the electronic device (2201) may be physically connected to an external electronic device (e.g., the electronic device (2202)). According to one embodiment, the connection terminal (2278) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0182] The haptic module (2279) 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 (2279) may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0183] The camera module (2280) can capture still images and videos. According to one embodiment, the camera module (2280) may include one or more lenses, image sensors, image signal processors, or flashes.

[0184] The power management module (2288) can manage power supplied to the electronic device (2201). According to one embodiment, the power management module (2288) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0185] A battery (2289) may power at least one component of the electronic device (2201). In one embodiment, the battery (2289) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0186] The communication module (2290) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (2201) and an external electronic device (e.g., electronic device (2202), electronic device (2204), or server (2208)), and the performance of communication through the established communication channel. The communication module (2290) may operate independently from the processor (2220) (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 (2290) may include a wireless communication module (2292) (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 (2294) (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 (2204) via a first network (2298) (e.g., a short-range communication network such as Bluetooth, Wi-Fi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (2299) (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 (2292) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (2296) to verify or authenticate the electronic device (2201) within a communication network such as the first network (2298) or the second network (2299).

[0187] The wireless communication module (2292) 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 large amounts of 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 (2292) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (2292) can 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 (2292) can support various requirements specified in the electronic device (2201), an external electronic device (e.g., the electronic device (2204)), or a network system (e.g., the second network (2299)). According to one embodiment, the wireless communication module (2292) may 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.

[0188] The antenna module (2297) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one embodiment, the antenna module (2297) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (2297) 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 (2298) or the second network (2299), may be selected from the plurality of antennas by, for example, the communication module (2290). A signal or power may be transmitted or received between the communication module (2290) and an external electronic device via the selected at least one antenna. According to 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 (2297).

[0189] According to various embodiments, the antenna module (2297) may form a mmWave antenna module. According to 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.

[0190] 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)).

[0191] According to one embodiment, commands or data may be transmitted or received between the electronic device (2201) and an external electronic device (2204) via a server (2208) connected to a second network (2299). Each of the external electronic devices (2202 or 1104) may be the same or a different type of device as the electronic device (2201). According to one embodiment, all or part of the operations executed in the electronic device (2201) may be executed in one or more of the external electronic devices (2202, 1104, or 1108). For example, when the electronic device (2201) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (2201) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (2201). The electronic device (2201) 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 (2201) may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (2204) may include an Internet of Things (IoT) device. The server (2208) may be an intelligent server utilizing machine learning and / or a neural network.According to one embodiment, an external electronic device (2204) or server (2208) may be included within the second network (2299). The electronic device (2201) 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.

[0192] 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 disclosed in this document are not limited to the aforementioned devices.

[0193] 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 component (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.

[0194] 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).

[0195] Various embodiments of the present document may be implemented as software (e.g., a program (2240)) including one or more instructions stored in a storage medium (e.g., an internal memory (2236) or an external memory (2238)) readable by a machine (e.g., an electronic device (2201)). For example, a processor (e.g., a processor (2220)) of the machine (e.g., an electronic device (2201)) 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.

[0196] According to one embodiment, the method according to the various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0197] 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 wearable devices, An insulating member forming a first surface that comes into contact with a part of the body of a user wearing the wearable device; An optical sensor, which is supported by being surrounded by the insulating material and configured to detect biometric information of a user; The first side of the above insulating member: Section 1; and Including a second section surrounded by the first section, The second section comprises a Fresnel pattern aligned to the optical sensor and is sunken from the first section. Wearable devices.

2. In claim 1, The optical sensor comprises a light emitting portion configured to emit light toward the first surface, The above Fresnel pattern includes a first pattern configured to focus light from the light emitting portion onto a part of the user's body. Wearable devices.

3. In any one of the claims set forth above, The optical sensor comprises a light receiving portion configured to receive light reflected from a part of the user's body, The above Fresnel pattern includes a second pattern configured to focus light incident on the first surface onto the light receiving portion. Wearable devices.

4. In any one of the claims set forth above, The above first section extends substantially in a circle, The second section is located below the virtual section that is continuous with the first section. Wearable devices.

5. In any one of the claims set forth above, The above biometric information includes heart rate information or oxygen saturation information. Wearable devices.

6. In claim 2, A first light-receiving portion supported by being surrounded by the insulating material; and A second light-receiving portion, which is supported by being surrounded by the insulating material, is included; The above second section is: A second pattern aligned with the first light-receiving portion and configured to focus light incident on the first surface onto the first light-receiving portion; and A third pattern is included, which is aligned with the second light receiving portion and configured to focus light incident on the first surface onto the second light receiving portion. Wearable devices.

7. In claim 6, The above light-emitting unit is spaced apart from the first light-receiving unit and the second light-receiving unit, and is positioned between the first light-receiving unit and the second light-receiving unit. Wearable devices.

8. In claim 6 or claim 7, The optical sensor comprises a light receiving portion configured to receive light reflected from a part of the user's body. Wearable devices.

9. In claim 8, The second section, in which the light-receiving portion is aligned, includes another pattern configured to focus light reflected from a part of the user's body onto the light-receiving portion, The above other pattern is spaced apart from the above first pattern, Wearable devices.

10. In claim 8, The light-receiving portion and the light-emitting portion of the optical sensor are integrated into one chip, The above Fresnel pattern includes a fourth pattern configured to focus light incident on the first surface onto the light receiving portion, The fourth pattern extends from the edge of the first pattern, Wearable devices.

11. In claim 10, The first pattern has a pattern different from the second pattern, the third pattern or the fourth pattern. Wearable devices.

12. In claim 10 or claim 11, The above first pattern includes a concave Fresnel pattern, The second pattern, the third pattern or the fourth pattern comprises a convex Fresnel pattern. Wearable devices.

13. In any one of claims 6 to 12, The first light receiving unit is set to receive light reflected on a part of the user's body through the insulating member, The second light receiving unit is set to receive light reflected on a part of the user's body through the insulating member. Wearable devices.

14. In any one of claims 1 to 13, Not including a lens aligned to the optical sensor and separated from the insulating member; Wearable devices.

15. In claims 6 to 14, The above first pattern includes first grooves, Each of the above first grooves is formed in a ring centered on a point, The above first grooves are formed so that the radius of each of the first grooves gradually increases as they move away from the one point, Each of the above first homes: a first inclined plane extending away from both the above-described point and the above-described light-emitting portion; and formed by a first surface extending from the edge of the first inclined surface, which is furthest from the above-mentioned point, toward the light-emitting portion; The second pattern includes second grooves, Each of the above second grooves is formed in a ring centered on a point of the second pattern, The second grooves are formed so that the radius of each of the second grooves gradually increases as they get farther away from the first point of the second pattern. Each of the above second homes: A second inclined plane extending away from the first point of the second pattern and closer to the first light-receiving portion; and A second surface formed by extending from the edge of the second inclined surface, which is furthest from the point of the second pattern, in a direction away from the first light-receiving portion; Wearable devices.

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