Light-emitting assembly and electronic device

Abstract

The application discloses a light-emitting assembly and an electronic device, and belongs to the optical device field. The light-emitting assembly comprises a light guide member, a first reflection member and a light-emitting light source. The light guide member comprises a light-in portion, a bending portion and a light-out portion. The light-out portion is connected with the light-in portion through the bending portion. The light-out portion and the bending portion are arranged along a first direction. The bending portion and the light-in portion are arranged along a second direction. The first direction intersects with the second direction. The light-out portion has a first surface and a second surface which are arranged opposite to each other along the second direction. The bending portion has a first curved surface. One side of the first curved surface intersects with the first surface. The side of the first curved surface which is away from the first surface is connected with the light-in portion. The side of the light-in portion which is away from the bending portion has a light-in surface. The light-in surface is arranged opposite to the first curved surface. In the second direction, the distance between the first surface and the second surface is a first distance. The distance between the first surface and the light-in surface is a second distance. The second distance is greater than the first distance.

Description

Technical Field

[0001] This application belongs to the field of optical device technology, specifically relating to a light-emitting component and an electronic device. Background Technology

[0002] With the development of communication technology, electronic devices such as mobile phones and tablets have become indispensable tools for people. When faced with a dazzling array of electronic devices, users not only need to consider whether the functions of the devices meet their needs, but also the appearance of the devices is one of the important factors influencing consumers' purchasing decisions. In order to enrich the appearance of electronic devices, they are equipped with light-emitting components, which enhance their visual appeal.

[0003] In related technologies, the light-emitting component includes a light guide and a light source, with the light guide typically being side-incident. In this case, the side of the light guide is provided with a light-incident surface, and the light source is mounted against the side of the light guide, with both arranged along the width or length direction of the electronic device.

[0004] However, to achieve uniform light mixing, a sufficient mixing distance must be reserved, which increases the overall lateral size of the light-emitting components and significantly reduces the lateral assembly space inside the electronic device. This further compresses the space for components such as camera modules and heat dissipation devices, making the overall layout of the electronic device more difficult. Summary of the Invention

[0005] The purpose of this application is to provide a light-emitting component and an electronic device that can solve the technical problem that the light-emitting component occupies a large horizontal assembly space in the electronic device, resulting in a large difficulty in the overall layout of the electronic device.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application disclose a light-emitting component, comprising: A light guide component, comprising a light-incident portion, a curved portion, and a light-outcident portion, wherein the light-outcident portion is connected to the light-incident portion via the curved portion, the light-outcident portion and the curved portion are arranged along a first direction, and the curved portion and the light-incident portion are arranged along a second direction, wherein the first direction and the second direction intersect. The light-emitting portion has a first surface and a second surface disposed opposite to each other along the second direction; the curved portion has a first curved surface, one side of the first curved surface intersects with the first surface, and the side of the first curved surface away from the first surface is connected to the light-incident portion; the side of the light-incident portion away from the curved portion has a light-incident surface, and the light-incident surface is disposed opposite to the first curved surface; in the second direction, the distance between the first surface and the second surface is a first distance, and the distance between the first surface and the light-incident surface is a second distance, the second distance being greater than the first distance; the second surface includes a microstructure region, and the microstructure region is provided with a plurality of reflective microstructures arranged at intervals; A first reflector, at least a portion of which is disposed on the first curved surface; A light source is provided, which is disposed opposite to the light incident surface. The light emitted by the light source passes through the light incident surface, the first reflector, and the reflective microstructure before exiting from the first surface.

[0007] Secondly, embodiments of this application disclose an electronic device, including a circuit board and the aforementioned light-emitting component, wherein the light-emitting light source of the light-emitting component is electrically connected to the circuit board.

[0008] In this embodiment, the light guide includes a light-incident portion, a curved portion, and a light-exiting portion. The light-exiting portion and the curved portion are arranged along a first direction, and the curved portion and the light-incident portion are arranged along a second direction intersecting the first direction. In this case, the light guide forms a curved light path, and a single horizontal straight light guide is no longer used. The light source enters the light-incident surface at the end of the light-incident portion along the second direction, and after being reversed by the curved portion and the first reflector, it enters the light-exiting portion along the first direction. At the same time, the distance between the first surface and the light-incident surface is greater than the thickness of the light-exiting portion itself. Therefore, the light-incident portion and the curved portion constitute an independently extended light mixing region: the light is fully mixed within the bending interval of the light-incident portion and the curved portion, and the mixing distance is supplemented by the depth space of the curved structure, without needing to lengthen the size of the light guide in the horizontal direction. Therefore, the technical solution disclosed in this application sets the light guide as a bent structure, changes the light mixing path from horizontal to the bending depth, and at the same time uses the size difference between the light input part and the light output part to provide sufficient light mixing path. Combined with the first reflector to reduce light leakage and the reflective microstructure on the light output part to achieve secondary light uniformity, the light emission component is greatly reduced in the horizontal space occupied by the light-emitting component while achieving uniform light emission, thereby effectively reducing the difficulty of the overall layout of electronic devices. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a light-emitting component disclosed in an embodiment of this application; Figures 2 to 4 This is a cross-sectional view of a light-emitting component disclosed in an embodiment of this application; Figures 5 to 7 This is a schematic diagram of the structure of a light guide component of a light-emitting component disclosed in an embodiment of this application; Figure 8 This is a cross-sectional view of a light guide component of a light-emitting assembly disclosed in an embodiment of this application; Figure 9 This is a partial cross-sectional view of a light-emitting component disclosed in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the first reflector of a light-emitting component disclosed in an embodiment of this application; Figure 11 yes Figure 10 A magnified view of a portion of the image; Figure 12 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of this application; Figure 13 and Figure 14 This is an exploded view of a partial structure of an electronic device disclosed in an embodiment of this application; Figure 15 This is a partial cross-sectional view of an electronic device disclosed in an embodiment of this application.

[0010] Explanation of reference numerals in the attached figures: 100 - Light-emitting component, 110 - Light guide, 1101 - Microstructure region, 1101a - First arc-shaped region, 1101b - Second arc-shaped region, 11011 - Reflective microstructure, 111 - Light-incident part, 1111 - Light-incident surface, 1111a - First light-incident structure, 1111b - Second light-incident structure, 1112 - First side surface, 1113 - Second side surface, 112 - Bending part, 1121 - First bending surface, 1122 - Second bending surface, 113 - Light-emitting part, 1131 - First surface, 1132 - Second surface, 113 3-Side edge, 1133a-First straight edge, 1133b-Second straight edge, 1133c-Arc-shaped edge, 114-Limiting protrusion, 120-First reflector, 121-Film substrate, 1211-First extension, 1212-Second extension, 1213-Connecting part, 122-Strip-shaped part, 123-Gap, 124-Notch, 1241-First notch, 1242-Second notch, 130-Light source, 131-First light-emitting element, 132-Second light-emitting element, 140-Diffusive film, 150-Second reflector; 200 - Circuit board; 300-Decorative part, 310-Bracket, 311-First through hole, 312-Accommodating groove, 3121-Limiting recess, 320-Lens; 400 - Housing; 500-Camera Module; X - First direction, Z - Second direction, Y - Third direction. Detailed Implementation

[0011] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0012] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0013] The light-emitting components and electronic devices provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0014] Please refer to Figures 1 to 11 This application discloses a light-emitting component 100, which includes a light guide 110, a first reflector 120, and a light source 130.

[0015] The light guide 110 is used to transmit light, and therefore can be made of transparent materials such as glass or resin. Specifically, the light guide 110 includes a light-incident portion 111, a curved portion 112, and a light-emitting portion 113, with the light-emitting portion 113 connected to the light-incident portion 111 via the curved portion 112. In this case, light emitted from the light source 130 can enter through the light-incident portion 111, be conducted through the curved portion 112, and then exit through the light-emitting portion 113. The light-emitting portion 113 and the curved portion 112 are arranged along a first direction X, and the curved portion 112 and the light-incident portion 111 are arranged along a second direction Z, with the first direction X and the second direction Z intersecting. In this case, the extending direction of the light-emitting portion 113 can be understood as the first direction X, and the extending direction of the light-incident portion 111 can be understood as the second direction Z; therefore, the extending directions of the light-incident portion 111 and the light-emitting portion 113 intersect. The curved portion 112 serves as a corner transition structure, enabling light path deflection. Therefore, light rays can undergo directional deflection through the curved portion 112, altering their propagation direction. In this application, the first direction X can be the length or width direction of the light guide 110, and the second direction Z can be the overall height direction of the light guide 110. Alternatively, the first direction X can also be the length or width direction of the light-emitting component 100, and the second direction Z can be the overall thickness or height direction of the light-emitting component 100. Of course, the first direction X and the second direction Z can also be other directions, which are not limited herein. The first direction X and the second direction Z can be perpendicular to each other, and their included angle can be greater than 0 degrees and less than 180 degrees. The included angle between the first direction X and the second direction Z can be determined by the axis between the light-incident portion 111 and the light-emitting portion 113. Optionally, the first direction X can be a horizontal arrangement direction, and the second direction Z can be a vertical arrangement direction.

[0016] The light-emitting portion 113 has a first surface 1131 and a second surface 1132 disposed opposite to each other along a second direction Z. The curved portion 112 has a first curved surface 1121, one side of which intersects with the first surface 1131, and the side of the first curved surface 1121 facing away from the first surface 1131 is connected to the light-receiving portion 111. The side of the light-receiving portion 111 facing away from the curved portion 112 may have a light-receiving surface 1111, which may be disposed opposite to the first curved surface 1121. Here, the first curved surface 1121 refers to the curved surface protruding from the outer side of the curved portion 112, that is, the outer curved surface of the curved portion 112.

[0017] In the second direction Z, the distance between the first surface 1131 and the second surface 1132 is the first distance, as shown in the figure. Figure 8 As shown in H1. The first distance here is the thickness or height of the light-emitting section 113. The distance between the first surface 1131 and the light-incident surface 1111 is the second distance, as shown in... Figure 8As shown in H2, the second distance is greater than the first distance. At this time, the overall height of the light-incident portion 111 and the curved portion 112 along the second direction Z is greater than the thickness of the light-emitting portion 113 itself. Therefore, the light-incident portion 111 protrudes from the second surface 1132 along the direction from the first surface 1131 to the second surface 1132, thereby creating a stepped difference between the light-emitting portion 113 and the light-incident portion 111. Optionally, the second distance can be less than or equal to 4 mm. Of course, the second distance can also be other values, which are not limited herein.

[0018] The second surface 1132 includes a microstructure region 1101, which has a plurality of reflective microstructures 11011 arranged at intervals. Light propagates forward within the light-emitting section 113 by total internal reflection. When it reaches the microstructure region 1101, it is incident on the surface of the reflective microstructures 11011, thereby disrupting the original total internal reflection condition. The light's propagation direction is changed by the microstructure reflection, allowing the light to exit from the first surface 1131 opposite to the second surface 1132. At least a portion of the first surface 1131 is the light-emitting surface of the light guide section.

[0019] The light source 130 is positioned opposite to the light-incident surface 1111. At this time, the curved portion 112, the light-incident portion 111, and the light source 130 are arranged along the second direction Z. Therefore, the second direction Z here can also be understood as the optical axis direction of the light source 130. Optionally, the light source 130 can be an LED (Light Emitting Diode) lamp, a high-pressure sodium lamp, a metal halide lamp, etc. Of course, the light source 130 can also have other structures, which are not limited herein.

[0020] At least a portion of the first reflector 120 is disposed on the first curved surface 1121. Optionally, the first reflector 120 may be a reflective coating applied to the first curved surface 1121. Alternatively, the first reflector 120 may be a reflective film attached to the first curved surface 1121, with the first reflective surface of the film facing the first curved surface 1121. When light propagates to the curved portion 112, a portion of the light is incident on the first curved surface 1121, which is the outer curved surface. This portion of the light is prone to leak outwards, exceeding the total internal reflection condition. The first reflector 120 can reflect this portion of the light back into the light guide 110 for continued propagation, suppressing light leakage at the curved corner and reducing light energy loss. The reflectivity of the first reflector 120 may be greater than or equal to 90%, but other values ​​are not limited herein.

[0021] In the specific light emission process, the light emitted by the light source 130 enters the light-incident part 111 through the light-incident surface 1111, is transmitted to the bending part through the light-incident part 111, is reflected by the first reflector 120 on the bending part and then transmitted to the light-emitting part 113, is then reflected by the reflective microstructure 11011 and is directed toward the first surface 1131, and is emitted from the first surface 1131 to the outside of the light guide 110.

[0022] In the embodiments disclosed in this application, the light guide 110 includes a light-incident portion 111, a bending portion 112, and a light-exiting portion 113. The light-exiting portion 113 and the bending portion 112 are arranged along a first direction X, and the bending portion 112 and the light-incident portion 111 are arranged along a second direction Z intersecting the first direction. In this case, the light guide 110 forms a bent light path, therefore the light guide 110 no longer uses a single transverse straight light guide. Specifically, the light source 130 enters the light-incident surface 1111 at the end of the light-incident portion 111. The light first enters the light-incident portion 111 along the second direction Z, and after being reversed by the bending portion 112 and the first reflector 120, it enters the light-exiting portion 113 along the first direction X. Therefore, the light guide 110 forms a bent light-guiding structure.

[0023] Meanwhile, the distance between the first surface 1131 and the light-incident surface 1111 is greater than the thickness of the light-emitting portion 113 itself. Therefore, the light-incident portion 111 and the curved portion 112 constitute an independently extended light-mixing region. The light is fully mixed within the bending interval of the light-incident portion 111 and the curved portion 112. Therefore, the mixing distance can be made up by the depth space of the bent structure, without having to lengthen the size of the light guide 110 in the lateral direction. Therefore, the technical solution disclosed in this application sets the light guide 110 as a bent structure, changing the light mixing route from the lateral direction to the bending depth direction, while using the size difference between the light-incident section and the light-emitting section to provide sufficient light mixing path. In addition, with the first reflector 120 reducing light leakage and the reflective microstructure 11011 on the light-emitting portion 113 providing secondary light homogenization, the light-emitting component 100 disclosed in this application can significantly reduce the lateral space occupied by the light-emitting component 100 while achieving uniform light emission, thereby effectively reducing the overall layout difficulty of electronic devices.

[0024] In related technologies, if the light guide 110 has a large-angle bend, it is easy to cause problems such as a large amount of light leakage at the corner, high light loss, and dim light output at the far end. For example, the light guide 110 has a 90° bend.

[0025] This application, through the synergy of multiple structures, maintains excellent light emission performance even under a 90° bend. Under a large 90° bend, some light rays incident on the first bending surface 1121 are prone to breaking the total internal reflection condition and leaking outwards. At this time, the first reflector 120 located on the first bending surface 1121 can reflect this escaping light rays back into the light guide 110 for continued transmission, reducing light energy loss at the corner. The second distance of the light-incident portion 111 along the second direction Z is greater than the first distance of the light-emitting portion 113, forming a smooth transition from thick to thin between the light-incident portion 111 and the light-emitting portion 113. The bending portion 112 uses a rounded transition rather than a sharp right angle, thus optimizing the light incident angle and mitigating the adverse optical effects of the 90° bend, thereby ensuring that the vast majority of effective light rays can be transmitted to the light-emitting portion 113. Furthermore, the microstructure region 1101 of the light-emitting section 113 employs spaced-apart reflective microstructures 11011, which can adjust and compensate for the light intensity distribution after bending, thereby improving the uniformity of light emission. Therefore, the light guide 110 in this application overcomes the problems of significant light leakage at corners, high light loss, and dim light emission at far ends caused by large-angle bending of the light guide 110 through the synergistic effect of multiple features such as the first reflector 120, the gradual thickness transition, the arc-shaped bending section 112, and the reflective microstructures 11011. Thus, the light-emitting component 100 disclosed in this application can significantly reduce the lateral space occupied and further improve the luminous brightness and light emission uniformity of the light-emitting component 100.

[0026] In the above scheme, the first curved surface 1121 can be formed by parallel stretching or translation of the first curve.

[0027] The first curve here is used to determine the surface profile of the first curved surface 1121. The first curve can be stretched or translated parallel to the edge line intersecting with the first surface 1131 to form the first curved surface 1121. The first curve can be a spline curve. The specific parameter values ​​of the first curve can be flexibly selected according to actual working conditions, and this document does not impose any restrictions.

[0028] In one alternative scheme, the parameters of the first curve are shown in Table 1 below: Table 1

[0029] The data parameters in Table 1 can determine the first curve, which can be stretched or translated parallel to the edge line intersecting the first surface 1131 to form the first curved surface 1121. Of course, the parameters such as the maximum curvature, minimum curvature, and curve length of the first curve are not limited to the data in Table 1. The data parameters of the first curve can fluctuate within ±10%.

[0030] In the above embodiments, the first reflective element 120 can be a reflective film, and the side of the reflective film with the first reflective surface can be attached to the first curved surface 1121. However, when the reflective film is attached to the first curved surface 1121, the outer side of the reflective film is stretched and the inner side is compressed. The inner side of the reflective film is only the reflective surface, while the outer side refers to the surface facing away from the first reflective surface. To resist this deformation caused by external stretching and internal compression, the reflective film will generate bending stress and rebound bending moment, which will cause the reflective film to easily lift and not adhere completely, thus easily leading to the risk of light leakage.

[0031] Based on this, in one embodiment, the first reflector 120 may include a film substrate 121 and a plurality of strip portions 122. The plurality of strip portions 122 may be located on the same side of the film substrate 121, and the plurality of strip portions 122 may be arranged at intervals along a third direction Y. In this case, there is a gap 123 between any two adjacent strip portions 122. The gap 123 separates the two adjacent strip portions 122. It can also be understood here that the first reflector 120 is a comb structure, the film substrate 121 is the skeleton of the comb structure, used to connect the plurality of strip portions 122, and the strip portions 122 are the comb teeth. The plurality of comb teeth may be arranged at intervals along the length direction of the film substrate 121, so the third direction Y can be the length direction of the film substrate 121.

[0032] In this configuration, the third direction Y intersects both the first direction X and the second direction Z. For example, the first direction X can be the length direction of the light guide 110, the second direction Z can be the height direction of the light guide 110, and the third direction Y can be the width direction of the light guide 110. Here, the third direction Y can be understood as the extension direction of the curved portion 112.

[0033] In this design, a gap 123 is formed between two adjacent strips 122. Therefore, when the reflective film is applied to the first curved surface 1121 and bends, the tensile and compressive stresses generated by the bending can be released through the gap between the adjacent strips 122, weakening the overall springback bending moment of the first reflective element 120 and suppressing the warping of the first reflective element 120. This allows the first reflective element 120 to fit more snugly onto the first curved surface 1121, thereby reducing the gap between the first reflective element 120 and the first curved surface 1121 and reducing the risk of light leakage at the bending position. Therefore, the comb-like design of the first reflective element 120 can reduce the difficulty of the mounting process of the first reflective element 120 and improve the yield of mass production. In addition, only the first reflective element 120 needs to be modified without changing the substrate structure of the light guide element 110, so the cost is lower and the process difficulty is lower.

[0034] In one embodiment, the distance between two adjacent strip portions 122 can be less than or equal to 0.05 mm, and the distance between two adjacent strip portions 122 is as follows: Figure 10As shown in d, the distance between two adjacent strips 122 is the width of the gap 123. In this design, the distance between two adjacent strips 122 is less than or equal to 0.05mm. This tiny gap provides deformation compensation space for the bending deformation of the first reflector 120, releases the bending stress generated when the reflective film is applied to the first curved surface 1121, alleviates the rebound moment, suppresses the warping of the reflective film, and ensures the adhesion between the reflector and the first curved surface 1121. At the same time, controlling the gap to within 0.05mm, the small gap width can suppress light leakage from the gap between adjacent strips 122, avoid the appearance of dotted or linear bright spots on the curved portion 112, and ensure the reflective and light-shielding performance of the first reflector 120.

[0035] Of course, the width of the interval 123 can be other values, which are not limited in this article.

[0036] In another embodiment, the distance between any two adjacent gaps 123 can be greater than or equal to 0.5 mm. The distance between any two adjacent gaps 123 is as follows: Figure 9 As shown in c in the diagram. The distance between two adjacent gaps 123 can be understood as the distance between the center lines of the two adjacent gaps 123, or the distance between the sidewalls of the two gaps 123, or the width of the strip portion 122 between the two adjacent gaps 123. In this design, the distance between adjacent gaps 123 is greater than or equal to 0.5mm, meaning the strip portion 122 has sufficient solid width. During die-cutting, the strip portion 122 is less prone to tearing or deformation; during the process of attaching to the curved first curved surface 1121, the strip portion 122 has sufficient rigidity and will not twist, warp, or wrinkle locally, thereby further ensuring and improving the yield of the first reflective element 120.

[0037] In the above scheme, the first reflector 120 can be attached only to the first curved surface 1121.

[0038] In another alternative embodiment, the side of the film substrate 121 opposite to the plurality of strips 122 can extend onto the first surface 1131 to cover a portion of the first surface 1131. In the second direction Z, the projected profile of the film substrate 121 can be located outside the projected profile of the microstructure region 1101. In this case, not all of the first surface 1131 serves as a light-emitting region; the area of ​​the first surface 1131 opposite to the microstructure region 1101 is the light-emitting region, and the area of ​​the first surface 1131 not opposite to the microstructure region 1101 is not used for light emission. This area does not face the reflective microstructure 11011 and does not perform the light emission function itself, thus belonging to a flat, smooth surface. Therefore, the area of ​​the first surface 1131 not opposite to the microstructure region 1101 can be defined as a smooth surface region. Therefore, the projected profile of the film substrate 121 can be located in the smooth surface region. To avoid light leakage in the covered area and waste of light, at least a portion of the film substrate 121 can cover the smooth surface region.

[0039] In this scheme, the film substrate 121 extends and covers the light surface area, which can block the ineffective scattered light from being emitted outward and reflect the scattered light back into the light guide 110 to continue propagating. This is beneficial to further improve the overall light utilization rate, reduce light waste, and thus further improve the light intensity of the light-emitting component 100.

[0040] In the above scheme, the smooth surface region can be located between the light-emitting region and the first curved surface 1121. Alternatively, the smooth surface region can be a ring structure, surrounding the light-emitting region. In the second direction Z, the projected outline of the film substrate 121 can be ring-shaped, and the projected outline of the microstructure region 1101 can be located within the inner ring region of the ring. Therefore, the projected outline of the film substrate 121 is still located outside the projected outline of the microstructure region 1101.

[0041] In the above embodiment, the membrane substrate 121 is simultaneously connected to the transition area between the first curved surface 1121 and the first surface 1131; one is an arc surface and the other is a plane, and there is a sudden change in surface shape between the two surfaces. When the membrane substrate 121 is attached to the transition area, it is easy to warp, peel up, or partially detach.

[0042] Furthermore, such as Figure 10As shown, the membrane substrate 121 may include a first extension 1211, a connecting portion 1213, and a second extension 1212, which can be connected by the connecting portion 1213. The first extension 1211 can be attached to the first surface 1131, and the second extension 1212 can be attached to the first curved surface 1121. Multiple strip-shaped portions 122 can be located on the side of the second extension 1212 opposite to the first extension 1211. A notch 124 is provided between the first extension 1211 and the second extension 1212, and the notch 124 can be arranged with the connecting portion 1213 along a third direction Y. In this case, the membrane substrate 121 has the notch 124 at the junction of the first curved surface 1121 and the first surface 1131.

[0043] In this design, the second extension 1212 is attached to the first curved surface 1121 and experiences a springback bending moment due to bending. The first extension 1211 is attached to the flat first surface 1131 with minimal bending deformation. The junction between the two is originally a weak point where stress is concentrated. At this point, a notch 124 arranged along the third direction Y is provided between the first extension 1211 and the second extension 1212. The notch 124 cuts off most of the continuously bridging membrane material, preventing the springback stress caused by bending from being transmitted extensively along the membrane substrate 121 to the first extension 1211. Only a narrow connecting portion 1213 is retained between the first extension 1211 and the second extension 1212 to achieve connection, significantly alleviating stress accumulation at the junction and effectively improving the problems of warping, edge lifting, and local detachment of the membrane substrate 121 at the junction, thereby further improving the bonding reliability and safety of the first reflector 120.

[0044] In the above scheme, the notch 124 can be formed on one side of the membrane substrate 121.

[0045] In another embodiment, the notch 124 may include a first notch 1241 and a second notch 1242, and the connecting portion 1213 may be located between the first notch 1241 and the second notch 1242.

[0046] In this design, the first notch 1241 and the second notch 1242 are distributed separately, preventing the formation of a long, continuous gap along the Y-direction. The solid area of ​​the connecting portion 1213 serves as a light-shielding and reflective element, thus avoiding continuous linear light leakage at the junction. Therefore, optical light-shielding performance is improved while meeting stress relief requirements. In addition, the multiple notches 124 disperse and release stress, reducing the risk of tearing and breakage of the connecting portion 1213 due to excessive local stress, thereby further improving the structural reliability of the first reflector 120.

[0047] In the above scheme, since the light-emitting area is generally a ring or circular structure, the edge of the first extension 1211 near the light-emitting area can be an arc-shaped edge, which can extend along the circumference of the light-emitting area.

[0048] In another optional embodiment, the light-incident portion 111 may have a first side surface 1112 and a second side surface 1113 disposed opposite to each other along the second direction Z, and the light-incident surface 1111 may be located between the first side surface 1112 and the second side surface 1113. A first curved surface 1121 can be connected to the light-incident surface 1111 via the first side surface 1112. In this case, the first side surface 1112 is the surface of the light-incident portion 111 facing away from the light-emitting portion 113. The second side surface 1113 is the surface of the light-incident portion 111 facing the light-emitting portion 113.

[0049] The distance between the first side surface 1112 and the second side surface 1113 can be a third distance, which can be understood as the thickness of the light-incident portion 111. The third distance can be greater than the first distance. In this case, the thickness of the light-incident portion 111 can be greater than the thickness of the light-emitting portion 113.

[0050] In this design, the thickness of the light-incident portion 111 is greater than that of the light-emitting portion 113, increasing the effective light-receiving size of the light-incident surface 1111 and improving the light-incident efficiency of light coupling into the light guide 110. Simultaneously, it can tolerate minor misalignments in the assembly of the light-emitting source 130, reducing assembly precision requirements. After light enters from the light-incident surface 1111, it smoothly transitions from the thicker light-incident portion 111 through the curved portion 112 to the thinner light-emitting portion 113, optimizing the incident angle of the light at the curved portion 112. This facilitates more light to meet the total internal reflection condition, reducing light leakage loss at the curved portion 112; furthermore, it constrains and converges the light beam, allowing more effective light to be delivered to the microstructure region 1101 of the light-emitting portion 113, thus improving light emission uniformity. In addition, the light-incident part 111 has a larger cross-sectional size, which improves the plastic filling effect during injection molding, reduces optical molding defects such as shrinkage marks and stress whitening, and ensures the optical quality of the light-incident surface 1111. At the same time, it makes the transition of the first curved surface 1121 more gradual, which is conducive to the attachment and adaptation of the first reflector 120, reduces the bonding stress of the first reflector 120, and reduces the risk of warping.

[0051] In the above scheme, if the light-incident portion 111 and the light-exit portion 113 have the same thickness and a sharp right-angle turn, the wall thickness changes abruptly at the corner, which can easily lead to shrinkage marks, depressions, bubbles, and stress concentration during injection molding. In this scheme, the light-incident portion 111 is wider, so that the light-incident portion 111 to the curved portion 112 and then to the light-exit portion 113 form a continuous and gentle transition from thick to thin, avoiding abrupt changes in wall thickness at the curved corner, thereby improving the attraction at the curved corner, reducing molding defects such as material shortage, shrinkage marks, and bubbles, and improving the reliability of the light guide 110 molding.

[0052] In the above scheme, the thinnest part of the light guide 110 can be greater than or equal to 0.3 mm. Since the thinnest part of the light guide 110 is the light emitting part 113, the thickness of the light emitting part 113 can be greater than or equal to 0.3 mm.

[0053] In another alternative embodiment, the curved portion 112 may further include a second curved surface 1122, which intersects with the second surface 1132, and the side of the second curved surface 1122 facing away from the second surface 1132 may intersect with the second side surface 1113. Here, the second curved surface 1122 refers to the inner concave surface located in the curved portion 112, that is, the inner curved surface of the curved portion 112.

[0054] The curvature of the second curved surface 1122 can be smaller than that of the first curved surface 1121.

[0055] In this scheme, the second curved surface 1122 has a smaller curvature and a smoother transition, which can optimize the incident angle of light on the inner curved surface, so that more light can meet the total internal reflection condition. The light path is turned by the second curved surface 1122, reducing the light transmission loss inside the curved part 112 and ensuring the light flux delivered to the light output part 113 after bending.

[0056] Furthermore, when the curvature of the second curved surface 1122 is large, the inner curved surface will intrude into the beam propagation space inside the light guide 110, and some edge beams propagating at large angles will be directly intercepted by the curved surface body, resulting in light loss. However, this application sets the curvature of the second curved surface 1122 to be smaller, the curved surface shape to be more gentle, the degree of intrusion into the inner side of the light path is small, the physical obstruction of the beam is weak, and more edge beams can smoothly pass through the curved part 112 to complete the large-angle deflection. Therefore, they are not easily directly intercepted by the inner curved surface, which is conducive to further improving the light utilization rate.

[0057] In addition, the first curved surface 1121 and the second curved surface 1122 adopt different curvatures, so that the cross section of the curved part 112 achieves a smooth wall thickness gradient, which improves the filling effect of molten plastic at the bending corner, reduces injection molding defects such as material shortage and shrinkage, and ensures the optical surface forming quality of the inner and outer curved surfaces.

[0058] Meanwhile, the inner curved surface is gentle, and the clamping force is evenly distributed during the demolding process, reducing the risk of the optical surface being pulled or scratched.

[0059] In addition, the design takes into account both the overall external turning layout and the internal total internal reflection optical performance. It works in conjunction with the transition structure from thick to thin from the light-incident section 111 to the light-emitting section 113 to confine the light beam, thereby helping to further improve the uniformity of light emission from the light-emitting section 113.

[0060] In the above scheme, the second curved surface 1122 can be formed by parallel stretching or translation of the second curve. The second curve is used to determine the surface profile of the second curved surface 1122. The second curve can be formed by parallel stretching or translation along the edge line intersecting the second surface 1132. The second curve can be a spline curve. The specific parameter values ​​of the second curve can be flexibly selected according to actual working conditions, and this paper does not impose any restrictions.

[0061] In this application, the specific shape of the curved portion 112 can be clearly defined by the first curved surface 1121 and the second curved surface 1122.

[0062] In one embodiment, the light-incident surface 1111 can be provided with a light-incident structure, and the light-emitting source 130 can be positioned opposite to the light-incident structure. The light-incident structure can be an arc-shaped surface, a Fresnel tooth shape, an annular groove, or other structures. Of course, the light-incident structure can also be other surface shapes, which are not limited herein. In this embodiment, the light-incident structure can regulate the incident light, thereby further improving light efficiency and thus further enhancing the luminous intensity of the light-emitting component 100.

[0063] Optionally, the light-incident structure can be an arc-shaped concave surface. For example, the parameters of the arc-shaped concave surface are shown in Table 2 below: Table 2

[0064] The data parameters in Table 2 can determine the contour of the arc-shaped concave surface. Of course, the arc radius, arc angle, and arc length of the arc-shaped concave surface are not limited to the data in Table 2. The data parameters of the arc-shaped concave surface can fluctuate within ±10%.

[0065] In another optional embodiment, the light-incident surface 1111 may include a first light-incident structure 1111a and a second light-incident structure 1111b that are spaced apart. The first light-incident structure 1111a and the second light-incident structure 1111b may be spaced apart along a third direction Y, and the third direction Y, the first direction X and the second direction Z intersect each other.

[0066] The light source 130 may include a first light-emitting element 131 and a second light-emitting element 132. The first light-emitting element 131 may be disposed opposite to the first light-incident structure 1111a, and the second light-emitting element 132 may be disposed opposite to the second light-incident structure 1111b.

[0067] In this scheme, the two light-emitting elements are guided to the interior of the light-emitting element 110 through corresponding light-incident structures, which can increase the total luminous flux and thus further improve the luminous brightness of the light-emitting section 113. Simultaneously, the light-incident structures are spaced apart along the third direction Y, which can compensate for the deficiency of light intensity attenuation along the length of a single light source and improve the luminous uniformity of the light-emitting section 113 along the third direction Y. Furthermore, the first light-emitting element 131 and the second light-emitting element 132 can be independently controlled, thereby enabling various luminous modes such as full brightness and partial illumination, enriching the interactive effects.

[0068] In the above scheme, the number of light-emitting elements and light-incident structures in the light-emitting source 130 is not limited to two; other numbers are also possible, and this paper does not impose any restrictions. Furthermore, the first light-incident structure 1111a and the second light-incident structure 1111b can have different texture structures. For example, the first light-incident structure 1111a can be an arc-shaped concave surface, and the second light-incident structure 1111b can be a Fresnel tooth shape. Different texture structures can further optimize the optical effect.

[0069] In the above scheme, the light-emitting part 113 may have a side 1133, which may be located between the first surface 1131 and the second surface 1132. The outline of the side 1133 may be annular or rectangular. Therefore, the light-emitting part 113 may be a rectangular structure or a disk-shaped structure.

[0070] In another optional embodiment, the side edge 1133 may include a first straight edge 1133a, a second straight edge 1133b, and an arc-shaped edge 1133c. The first straight edge 1133a and the second straight edge 1133b may be located at opposite ends of the arc-shaped edge 1133c, and the ends of the first straight edge 1133a and the second straight edge 1133b away from the arc-shaped edge 1133c may both be connected to the curved portion 112. The arc-shaped edge 1133c protrudes in a direction away from the curved portion 112 to form a convex arc profile. The first straight edge 1133a and the second straight edge 1133b may be arranged along a third direction Y.

[0071] In the direction from the curved portion 112 to the light-emitting portion 113, the distance between the first straight edge 1133a and the second straight edge 1133b gradually increases. At this time, the arrangement direction of the first straight edge 1133a and the second straight edge 1133b can be the width direction of the light-emitting portion 113. Therefore, the width of the end of the light-emitting portion 113 connected to the curved portion 112 is smaller than the width of the end of the light-emitting portion 113 away from the curved portion 112. Therefore, the light-emitting portion 113 has a flared shape that is narrow at the root and wide at the end.

[0072] In this design, if a rectangular or circular structure of equal width is used to achieve the same size light-emitting area, the curved portion 112 and the light-incident portion 111 must also be the same width as the light-emitting portion 113, resulting in a significant increase in the overall device size. However, the flared structure in this application only enlarges the end of the light-emitting portion 113 while maintaining a small root size. Therefore, a larger light-emitting area is obtained while adapting to the limited assembly space of the curved portion 112. Consequently, while meeting the light-emitting area requirements, the structural layout is more compact, which helps to further reduce the overall space occupied by the light guide 110.

[0073] Furthermore, the convex arc-shaped edge 1133c at the end eliminates sharp corners, which helps improve the injection filling effect, reduces molding defects such as shrinkage marks and stress concentration, and reduces the risk of demolding damage. At the same time, it softens the angle of light incident on the side edge 1133, reducing unexpected light leakage at the corners. In addition, the arc-shaped contour can also disperse corner stress, improving the structural reliability of the light-emitting part 113 in terms of vibration and impact resistance.

[0074] In one embodiment, the microstructure region 1101 can be a ring-shaped structure, in which case the light-emitting component 100 can emit a ring-shaped light effect. The light-emitting region on the first surface 1131 can also be a ring-shaped region opposite to the microstructure region 1101. In this case, the inner ring region of the light-emitting region does not have a corresponding reflective microstructure 11011, so the inner ring region of the light-emitting region does not emit light.

[0075] In the above scheme, light enters the light-emitting section 113 after being redirected by the bending section 112. The area where the microstructure region 1101 and the bending section 112 are directly opposite each other is the area where the light first arrives, and the incident light flux is inherently high. If the density of the reflective microstructures 11011 in the microstructure region 1101 is uniform everywhere, the area where the microstructure region 1101 and the bending section 112 are directly opposite each other will have a high reflection intensity, resulting in local overbrightness. However, the incident path of the microstructure region 1101 along the third direction Y deviates further from the two ends of the bending section 112, and the remaining light flux reaching that position is inherently low. With the same density of reflective microstructures 11011, less light is emitted, resulting in a brightness distribution that is dark in the middle and bright at both ends, and poor light emission uniformity.

[0076] In another optional embodiment, the microstructure region 1101 may include a first arc-shaped region 1101a and a second arc-shaped region 1101b, which are connected end-to-end to form a ring structure. The first arc-shaped region 1101a and the second arc-shaped region 1101b may be arranged along a first direction X, with the second arc-shaped region 1101b located on the side of the first arc-shaped region 1101a away from the curved portion 112. The distribution density of the reflective microstructures 11011 on both the first arc-shaped region 1101a and the second arc-shaped region 1101b may increase from their center to their two ends. In this case, the boundary position of the first arc-shaped region 1101a and the second arc-shaped region 1101b is usually directly opposite the curved portion, and the boundary position of the first arc-shaped region 1101a and the second arc-shaped region 1101b can be understood as the two ends of the first arc-shaped region 1101a and the second arc-shaped region 1101b.

[0077] In this scheme, the ends of the two arc-shaped regions receive more light, resulting in a lower density of the corresponding reflective microstructures 11011 and thus reducing light intensity. Conversely, the centers of the two arc-shaped regions receive less light, leading to a higher density of the corresponding reflective microstructures 11011 and thus increasing light intensity. This compensates for the insufficient light intensity in the central region, flattening the overall output brightness of the annular microstructure region 1101 and further improving the uniformity of light output.

[0078] In one embodiment, the light-emitting component 100 may further include a diffusion film 140, which may be attached to the first surface 1131. In the first direction X, the projected outline of the microstructure region 1101 lies within the projected outline of the diffusion film 140. In this case, the diffusion film 140 can cover the aforementioned light-emitting region. In this solution, the diffusion film 140 can disperse the light emitted from the light-emitting region, thereby making the emitted light from the light-emitting component 100 softer and increasing the field of view of the light-emitting component 100.

[0079] Furthermore, the diffusion film 140 can also shield the reflective microstructure 11011, thereby preventing it from being directly observed. The haze of the diffusion film 140 can be greater than 55%, and the transmittance can be less than or equal to 50%.

[0080] In another embodiment, the light-emitting component 100 may further include a second reflector 150 disposed on the second surface 1132, and the side of the second reflector 150 facing the second surface 1132 may have a second reflective surface. In this embodiment, the second reflective surface on the second reflector 150 can return the light emitted from the second surface 1132 back to the light-emitting portion 113, thereby improving the light emission brightness of the light-emitting component 100 and further improving the light utilization efficiency.

[0081] Optionally, the reflective microstructure 11011 may be formed by a groove on the second surface 1132. Of course, the reflective microstructure 11011 is not limited to a groove, but may also be a protrusion, a boss, or other shapes. The specific shape of the reflective microstructure 11011 is not limited herein.

[0082] The second reflector 150 mentioned above can be a reflective coating or a reflective film deposited on the second surface 1132, and this article does not limit it.

[0083] Optionally, the first reflector 120 and the second reflector 150 described above can be formed by depositing silver on the surface of a substrate such as glass, polymer film, or metal through methods such as vacuum deposition or chemical reaction, thereby improving the substrate's ability to reflect light. Of course, the first reflector 120 and the second reflector 150 can also be manufactured using other processes and substrates made of other materials, which is not limited herein.

[0084] The light-emitting component 100 in this embodiment can be used as a supplementary light, and of course, it can also be used as a breathing light. The light-emitting component 100 disclosed in this application, through the cooperation of multiple structures, can not only significantly reduce the lateral space occupied, but also further improve the light emission brightness and light uniformity of the light-emitting component 100.

[0085] Based on the light-emitting component 100 disclosed in the embodiments of this application, the embodiments of this application also disclose an electronic device, which includes the light-emitting component 100 described in any of the embodiments above.

[0086] The electronic device disclosed in this application may also include a housing assembly and a circuit board 200. Both the circuit board 200 and the light-emitting component 100 may be disposed on the housing assembly, and the light source 130 of the light-emitting component 100 may be electrically connected to the circuit board 200.

[0087] In one embodiment, the housing assembly may include a housing 400 and a decorative element 300. The decorative element 300 is disposed on the housing 400. This decorative element 300 can be a camera decorative element, or it can be a decorative element 300 for other components; this is not limited herein. The housing 400 may have mounting holes, and at least a portion of the light guide 110 can be mounted in these mounting holes. The housing 400 serves as the mounting base for the electronic device. The housing may include a mid-frame and a battery cover, and the battery cover can be mounted onto the mid-frame. The display screen of the electronic device can be mounted on the side of the mid-frame opposite to the battery cover. Both the decorative element 300 and the light guide 110 can be mounted onto the battery cover.

[0088] In another alternative, the light guide 110 can be mounted on the decorative element 300. Mounting the light guide 110 on the decorative element 300 reduces the space occupied by the light-emitting component 100 within the housing, thereby facilitating further optimization of the electronic device's layout.

[0089] In another option, such as Figure 12 As shown, the decorative component 300 in this application can be a camera decorative component. In this case, the decorative component 300 has a light-transmitting area opposite to the camera module 500. Of course, the camera module 500 can also be directly mounted on the decorative component 300. The light guide component 110 can be integrated on the decorative component used to decorate the camera module 500. In this case, the light-emitting component 100 and the camera module 500 are arranged side by side.

[0090] In other designs, the decorative element 300 may be used solely for mounting the light-emitting component 100. In this case, the decorative element 300 for mounting the light-emitting component 100 may be arranged alongside the camera decorative element on the housing 400.

[0091] In one alternative embodiment, such as Figures 13 to 15 As shown, the decorative element 300 may include a support 310 and a lens 320, with the support 310 and lens 320 stacked along a second direction Z. Here, the second direction Z is the thickness direction of the decorative element 300. The support 310 may have a first through hole 311 extending along the second direction Z. In this case, the first through hole 311 extends through the support 310 along its thickness direction. The light-emitting portion 113 is located between the support 310 and the lens 320. The first surface 1131 faces the lens 320. At least a portion of the light-receiving portion 111 may be located within the first through hole 311. In this case, the light-receiving portion 111 may be entirely located within the first through hole 311. Alternatively, the side of the light-receiving portion 111 facing away from the curved portion 112 may protrude through the first through hole 311 onto the surface of the support 310 facing away from the lens 320. Since at least a portion of the light-incident portion 111 is located within the first through-hole 311, the light-emitting source 130 can be opposite to the first through-hole 311, and at least a portion of the light-emitting source 130 can be located within the first through-hole 311. In this case, the light-emitting source 130 can be fixed within the first through-hole 311. Alternatively, the light-emitting source 130 can be located on the side of the bracket 310 away from the lens 320. For example, the light-emitting source 130 can be fixed within the inner cavity of the housing 400. When the light-emitting source 130 emits light, the light can be emitted from the lens 320 after passing through the light-emitting portion 113.

[0092] In this solution, at least a portion of the light-incident part 111 is housed in the first through hole 311 of the bracket 310. A portion of the thickness of the light-incident part 111 occupies the space of the through hole of the bracket 310 itself, and is no longer added to the total stacking thickness. This effectively reduces the overall stacking height of the decorative part 300 and the light guide 110 along the second direction Z, adapting to the limited thickness space of the electronic device, thereby effectively improving the thinness of the electronic device.

[0093] Furthermore, the wall of the first through hole 311 can laterally limit the light-incident part 111, constraining its lateral displacement and ensuring the relative position of the light-incident part 111 and the light-emitting source 130. This prevents the risk of light misalignment, decreased brightness, and light spot deviation caused by assembly misalignment. At the same time, it ensures the stable position of the light-emitting part 113 relative to the lens 320, resulting in good assembly consistency.

[0094] In addition, the circumferential hole wall of the first through hole 311 surrounds the light-incident part 111, which can block the scattered stray light of the light source from spreading to the surroundings, and prevent stray light from entering the interlayer between the bracket 310 and the lens 320 from the gap between the bracket 310 and the light guide 110, thereby reducing the phenomenon of light leakage and overflow around the lens 320, thus ensuring that the light-emitting boundary is clear and the electronic device has a better light-emitting effect.

[0095] Furthermore, a receiving groove 312 may be provided on the side of the bracket 310 facing the lens 320, and at least a portion of the light-emitting part 113 may be located within the receiving groove 312. A first through hole 311 may be provided at the bottom of the receiving groove 312.

[0096] In this design, the light-emitting part 113 is recessed and housed inside the receiving groove 312. At least part of the thickness of the light-emitting part 113 occupies the space of the receiving groove 312 of the bracket 310, and it does not need to be completely placed between the bracket 310 and the lens 320. This can further reduce the assembly gap required between the bracket 310 and the lens 320, and further reduce the overall stacking thickness of the decorative part 300 and the light guide 110 along the second direction Z, which is beneficial to the thinner and lighter design of electronic devices.

[0097] In addition, the groove wall of the recess 312 can laterally limit the light-emitting part 113, and the bottom of the groove forms an axial support for the light-emitting part 113. Together with the limiting effect of the first through hole 311 at the bottom of the groove on the light-incident part 111, the light-incident part 111 and the light-emitting part 113 of the light guide 110 are jointly positioned, ensuring the relative positional accuracy between the light guide 110 and the light source 130 and the lens 320, and reducing the risk of optical defects caused by assembly deviation.

[0098] Meanwhile, the peripheral wall of the recess 312 can act as a light shield, suppressing the outward leakage of stray light scattered from the side 1133 of the light-emitting part 113 and reducing the edge brightness of the lens 320.

[0099] Furthermore, a limiting recess 3121 can be formed on the side wall of the receiving groove 312, and the light guide 110 also includes a limiting protrusion 114, which is disposed on the side 1133 of the light emitting portion 113. Optionally, it can be disposed on the arcuate edge 1133c of the side 1133 of the light emitting portion 113. At least a portion of the limiting protrusion 114 can be located within the limiting recess 3121. In this solution, the limiting protrusion 114 and the limiting groove can further limit the light emitting portion 113, thereby further improving the relative positional accuracy between the light guide 110 and the light source 130 and the lens 320, and further reducing the risk of optical defects caused by assembly deviations.

[0100] The electronic devices disclosed in this application can be smartphones, tablets, e-book readers, wearable devices (such as smartwatches), video game consoles, etc. This application does not limit the specific types of electronic devices.

[0101] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A light-emitting component, characterized in that, include: A light guide component, comprising a light-incident portion, a curved portion, and a light-outcident portion, wherein the light-outcident portion is connected to the light-incident portion via the curved portion, the light-outcident portion and the curved portion are arranged along a first direction, and the curved portion and the light-incident portion are arranged along a second direction, wherein the first direction and the second direction intersect. The light-emitting portion has a first surface and a second surface disposed opposite to each other along the second direction; the curved portion has a first curved surface, one side of the first curved surface intersects with the first surface, and the side of the first curved surface away from the first surface is connected to the light-incident portion; the side of the light-incident portion away from the curved portion has a light-incident surface, and the light-incident surface is disposed opposite to the first curved surface; in the second direction, the distance between the first surface and the second surface is a first distance, and the distance between the first surface and the light-incident surface is a second distance, the second distance being greater than the first distance; the second surface includes a microstructure region, and the microstructure region is provided with a plurality of reflective microstructures arranged at intervals; A first reflector, at least a portion of which is disposed on the first curved surface; A light source is provided, which is disposed opposite to the light incident surface. The light emitted by the light source passes through the light incident surface, the first reflector, and the reflective microstructure before exiting from the first surface.

2. The light-emitting component according to claim 1, characterized in that, The first reflector includes a film substrate and a plurality of strip-shaped portions, the plurality of strip-shaped portions being located on the same side of the film substrate and the plurality of strip-shaped portions being arranged at intervals along a third direction; wherein, the third direction intersects both the first direction and the second direction.

3. The light-emitting component according to claim 2, characterized in that, The membrane substrate extends to the first surface from the side opposite to the plurality of strips to cover a portion of the first surface; in the second direction, the projected profile of the membrane substrate is located outside the projected profile of the microstructure region.

4. The light-emitting component according to claim 3, characterized in that, The membrane substrate includes a first extension, a connecting portion, and a second extension. The first extension and the second extension are connected by the connecting portion. The first extension is attached to the first surface, and the second extension is attached to the first curved surface. A plurality of strip portions are located on the side of the second extension opposite to the first extension. There is a notch between the first extension and the second extension, and the notch and the connecting portion are arranged along the third direction.

5. The light-emitting component according to claim 4, characterized in that, The notch includes a first notch and a second notch, and the connecting portion is located between the first notch and the second notch.

6. The light-emitting component according to claim 1, characterized in that, The light-incident portion has a first side surface and a second side surface arranged opposite to each other along a second direction. The light-incident surface is located between the first side surface and the second side surface. The first curved surface is connected to the light-incident surface through the first side surface. The distance between the first side surface and the second side surface is a third distance, which is greater than the first distance.

7. The light-emitting component according to claim 6, characterized in that, The curved portion further includes a second curved surface, which intersects with the second surface, and the side of the second curved surface away from the second surface intersects with the second side surface; the curvature of the second curved surface is smaller than the curvature of the first curved surface.

8. The light-emitting component according to claim 1, characterized in that, The light-incident surface includes a first light-incident structure and a second light-incident structure that are spaced apart. The first light-incident structure and the second light-incident structure are spaced apart along a third direction, and the third direction, the first direction, and the second direction intersect each other. The light source includes a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is disposed opposite to the first light-incident structure, and the second light-emitting element is disposed opposite to the second light-incident structure.

9. The light-emitting component according to claim 1, characterized in that, The light-emitting part has a side edge located between the first surface and the second surface. The side edge includes a first straight edge, a second straight edge, and an arc-shaped edge. The first straight edge and the second straight edge are located at opposite ends of the arc-shaped edge. The ends of the first straight edge and the second straight edge away from the arc-shaped edge are both connected to the curved part. The arc-shaped edge protrudes in a direction away from the curved part to form a convex arc profile. The first straight edge and the second straight edge are arranged along a third direction, and the third direction, the first direction, and the second direction intersect each other in pairs. In the direction from the curved portion to the light-emitting portion, the distance between the first straight edge and the second straight edge gradually increases.

10. The light-emitting component according to claim 9, characterized in that, The microstructure region includes a first arc-shaped region and a second arc-shaped region, which are connected end to end to form a ring structure; the first arc-shaped region and the second arc-shaped region are arranged along the first direction, and the second arc-shaped region is located on the side of the first arc-shaped region away from the curved portion; the distribution density of the reflective microstructures on the first arc-shaped region and the second arc-shaped region increases from their center to their two ends.

11. The light-emitting component according to claim 1, characterized in that, The light-emitting component further includes a diffusion film and a second reflector. The diffusion film is attached to the first surface. In the first direction, the projected outline of the microstructure region is located within the projected outline of the diffusion film. The second reflector is disposed on the second surface, and the side of the second reflector facing the second surface has a second reflective surface.

12. An electronic device, characterized in that, The device includes a circuit board and a light-emitting component according to any one of claims 1 to 11, wherein the light-emitting light source of the light-emitting component is electrically connected to the circuit board.

13. The electronic device according to claim 12, characterized in that, The electronic device also includes a decorative component, which includes a bracket and a lens. The bracket and the lens are stacked along the second direction. The bracket has a first through hole extending along the second direction. The light-emitting part is located between the bracket and the lens. The first surface faces the lens. At least a portion of the light-receiving part is located within the first through hole.

14. The electronic device according to claim 13, characterized in that, The bracket has a receiving groove on the side facing the lens, at least a portion of the light-emitting part is located in the receiving groove, and the bottom of the receiving groove has the first through hole.

15. The electronic device according to claim 14, characterized in that, The receiving groove has a limiting recess on its side wall, and the light guide also includes a limiting protrusion. The limiting protrusion is located on the side of the light emitting part, and at least a portion of the limiting protrusion is located within the limiting recess.

Images