Light-emitting assembly and electronic equipment

Abstract

The invention discloses a light-emitting assembly and electronic equipment, and belongs to the technical field of optical devices. The light-emitting assembly comprises a light guide part, a light-emitting light source and a reflecting part; the light guide part is provided with a light-emitting surface, a first reflecting surface and a light-in surface, the light-emitting surface and the first reflecting surface are located on two opposite sides of the light guide part, the light-in surface is adjacent to the light-emitting surface and the first reflecting surface, and the first reflecting surface is provided with a plurality of reflecting microstructures which are arranged at intervals; the light-emitting source is opposite to the light incident surface; the reflecting part and the light guide part are overlapped, the reflecting part is located on the side where the first reflecting surface is located, a second reflecting surface is arranged on the side, facing the light guide part, of the reflecting part, a first notch is formed in the edge of the side, facing the light-emitting light source, of the reflecting part, and an opening of the first notch faces the light-emitting light source; light emitted by the light-emitting light source enters the light guide piece through the light inlet face, is reflected by the first reflecting face and / or the second reflecting face and then is emitted out through the light outlet face.

Description

Technical Field

[0001] The present application belongs to the technical field of optical devices, and specifically relates to a light-emitting component and an electronic device. Background Art

[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 wide range of electronic devices, users need to consider not only whether the functions of the electronic devices meet their needs, but also the appearance of the electronic devices is one of the important factors that influence consumers' purchase decisions. In order to make the appearance of electronic devices more expressive, electronic devices are equipped with light-emitting components, which can make the appearance of electronic devices more expressive.

[0003] In the related art, a light-emitting assembly includes a light guide and a light source. The light guide has a light-emitting surface and a light-entering surface disposed adjacent to each other, and the light source is located to the side of the light guide where the light-entering surface is located. In this case, the light source is located to the side of the light guide, and thus is offset from the light guide to allow the light source to be arranged side by side with the light guide, thereby reducing the stacking thickness of the light-emitting assembly.

[0004] However, the light emitting surface is eccentrically arranged with respect to the light source, so the brightness of the side of the light emitting surface close to the light source is high, while the brightness of the side away from the light source is low, resulting in poor light emission uniformity of the light emitting component, and thus poor optical performance of the electronic device. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a light-emitting component and an electronic device that can solve the problem of poor light uniformity of the light-emitting component.

[0006] In order to solve the above technical problems, this application is implemented as follows: In a first aspect, the present application discloses a light-emitting assembly, comprising: a light guide having a light emitting surface, a first reflective surface, and a light incident surface, the light emitting surface and the first reflective surface being located on opposite sides of the light guide, the light incident surface being adjacent to both the light emitting surface and the first reflective surface, and the first reflective surface being provided with a plurality of reflective microstructures arranged at intervals; a luminous light source, the luminous light source being arranged opposite to the light incident surface; a reflector, the reflector being superposed on the light guide, the reflector being located on the side where the first reflective surface is located, the reflector being provided with a second reflective surface on a side facing the light guide, and a first notch being provided on an edge of a side of the reflector facing the light source, the opening of the first notch being directed toward the light source; The light emitted by the luminous light source enters the light guide component through the light incident surface, is reflected by the first reflecting surface and / or the second reflecting surface, and is emitted through the light emitting surface.

[0007] In a second aspect, the present application discloses an electronic device, comprising a device body, a circuit board and the above-mentioned light-emitting component, wherein the circuit board and the light-emitting component are both arranged on the device body, and the light source of the light-emitting component is electrically connected to the circuit board.

[0008] In an embodiment of the present application, the first reflective surface of the light guide is provided with reflective microstructures arranged at intervals. The reflective member is located on the side of the light guide where the first reflective surface is located, and the reflective member is provided with a second reflective surface on the side facing the light guide. The reflective member is provided with a first notch on the edge of the side facing the light source, and the opening of the first notch faces the light source. In the scheme disclosed in the present application, the light-emitting component can improve the overall light utilization rate by providing the reflective microstructure and the reflective member on the side of the first reflective surface, thereby facilitating the improvement of the light output brightness, and thus the brightness of the side of the light-emitting surface away from the light source is significantly improved. At this time, at the light entrance position of the light guide, a first notch is provided on the reflective member. At this time, the light utilization rate at the light entrance position of the light guide decreases, thereby facilitating the reduction of the light intensity at the light entrance position of the light guide, thereby reducing the brightness at the light entrance position of the light guide. Therefore, the brightness of the side of the light-emitting surface away from the light source is increased by the reflective microstructure and the reflective part, while the brightness of the side of the light-emitting surface close to the light source is reduced by the first notch. Therefore, when the internal space of the electronic device is limited and the light mixing distance is limited, the present application scheme is beneficial to balancing the brightness of the light-emitting surface, and further helps to improve the light uniformity of the light-emitting component, thereby improving the optical performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of a light-emitting component disclosed in an embodiment of the present application; Figure 2 This is an exploded view of a light-emitting component disclosed in an embodiment of the present application; Figure 3 This is a bottom view of a light-emitting assembly disclosed in an embodiment of the present application; Figure 4 is a partial cross-sectional view of a light-emitting component disclosed in an embodiment of the present application; Figure 5 This is a schematic structural diagram of a reflector of a light-emitting assembly disclosed in an embodiment of the present application; Figure 6 This is a schematic structural diagram of a light guide member of a light-emitting assembly disclosed in an embodiment of the present application; Figure 7 This is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application; Figure 8 and Figure 9 This is a partial cross-sectional view of the structure of an electronic device disclosed in an embodiment of the present application; Figure 10 and Figure 11 This is a partially enlarged view of an electronic device disclosed in an embodiment of the present application; Figure 12 is an exploded diagram of an electronic device disclosed in an embodiment of the present application; Figure 13 is a cross-sectional view of a second electronic device disclosed in an embodiment of the present application; Figure 14 is a cross-sectional view of a third electronic device disclosed in an embodiment of the present application; Figure 15 It is a polar coordinate diagram of the light intensity distribution of a luminous light source.

[0010] Description of reference numerals: 100-light-emitting component, 110-light guide, 1101-light-emitting surface, 1102-first reflecting surface, 11021-first arc-shaped reflecting area, 11021a-first arc segment, 11021b-middle arc segment, 11021c-second arc segment, 11022-second arc-shaped reflecting area, 1103-light-entering surface, 1104-reflective microstructure, 111-light-entering portion, 1111-first bending segment, 1112-second bending segment, 112-light-emitting portion, 120-light source, 130-reflecting element, 1301-first notch, 1301a-first sidewall, 1301b-second sidewall, 1301c-third sidewall, 131 -first reflection area, 132-second reflection area, 140-light absorption film, 150-diffusion film, 160-lampshade, 161-annular light emitting area, 171-first adhesive layer, 172-second adhesive layer, 173-third adhesive layer, L-first preset distance, 200-device body, 210-shell, 220-camera decoration, 221-first light-transmitting area, 222-second light-transmitting area, 223-raised portion, 2231-positioning space, 2232-second notch, 2201-decorative part body, 2201a-substrate, 2201b-cover, 2202-first lens, 2203-second lens, 300-circuit board. DETAILED DESCRIPTION

[0011] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0012] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0013] In the related art, a light-emitting assembly 100 includes a light guide 110 and a light source 120. The light guide 110 has a light-emitting surface 1101 and a light-entering surface 1103 disposed adjacent to each other. The light source 120 is located on the side of the light guide 110 where the light-entering surface 1103 is located. In this case, the light source 120 is located on the side of the light guide 110. Therefore, the light source 120 and the light guide 110 are staggered, so that the light source 120 can be arranged side by side with the light guide 110, thereby reducing the stacking thickness of the light-emitting assembly 100.

[0014] However, in order to make the brightness of the side of the light emitting surface 1101 close to the light source 120 and the brightness of the side of the light emitting surface 1101 close to the light source 120 as close as possible to achieve the effect of uniform light emission, a certain distance needs to be met between the side of the light emitting surface 1101 close to the light source 120 and the light source 120 to achieve the effect of uniform light emission for the light source 120, so as to make the brightness of the side of the light emitting surface 1101 close to the light source 120 and the brightness of the side of the light emitting surface 1101 close to the light source 120 as close as possible. The distance between the side of the light emitting surface 1101 close to the light source 120 and the light source 120 is the attached Figure 10 As the number and size of cameras in electronic devices increase, the installation space for other components is constantly squeezed, causing the distance h2 to continuously decrease, even to below 4 mm. This makes it impossible to achieve effective light mixing, resulting in uneven light emission from the light-emitting surface 1101.

[0015] At the same time, regardless of the distance between the light source 120 and the light emitting surface 1101, the eccentric arrangement of the light emitting surface 1101 and the light source 120 always results in higher brightness on the side of the light emitting surface 1101 closer to the light source 120, while lower brightness on the side farther from the light source 120. Therefore, the light emitting assembly 100 in the related art always suffers from poor light uniformity.

[0016] The light-emitting component and electronic device provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0017] Please refer to Figures 1 to 14The embodiment of the present application discloses a light emitting component 100 , which includes a light guide 110 , a light source 120 and a reflector 130 .

[0018] The light guide 110 is used to transmit light, and therefore the light guide 110 can be made of transparent glass, resin, or other materials. Specifically, the light guide 110 has a light-emitting surface 1101, a first reflective surface 1102, and a light-entering surface 1103. The light-emitting surface 1101 and the first reflective surface 1102 are located on opposite sides of the light guide 110. For example, the light-emitting surface 1101 can be the top surface of the light guide 110, and the first reflective surface 1102 can be the bottom surface of the light guide 110. The light-entering surface 1103 is adjacent to both the light-emitting surface 1101 and the first reflective surface 1102. In this case, the light-entering surface 1103 can be a side surface of the light guide 110. The first reflective surface 1102 is provided with a plurality of reflective microstructures 1104 arranged at intervals.

[0019] The light emitting source 120 is arranged opposite to the light incident surface 1103. Optionally, the light emitting source 120 can be an LED (Light Emitting Diode, semiconductor light emitting diode) lamp, a high-pressure sodium lamp, a metal halide lamp, etc. Of course, the light emitting source 120 can also be other structures, which is not limited in this article. The light emitting source 120 is located on the side of the light guide 110 where the light incident surface 1103 is located, and the light emitting surface of the light emitting source 120 faces the light incident surface 1103. At this time, since the light incident surface 1103 is located on the side of the light guide 110, the light emitting source 120 is also located on the side of the light guide 110. It can be understood here that the arrangement direction of the above-mentioned light emitting surface 1101 and the first reflecting surface 1102 can be the first direction. The arrangement direction of the light guide 110 and the light source 120 can be a second direction. In this case, the first direction and the second direction intersect, that is, the light emitting surface 1101 of the light guide 110 and its first reflective surface 1102 are arranged in one direction, and the light guide 110 and the light source 120 are arranged in another direction. Optionally, the first direction and the second direction can be perpendicular to each other. Of course, the first direction and the second direction can also intersect at an angle, which is not limited in this article. The reflective member 130 is superimposed on the light guide 110, and the reflective member 130 is located on the side where the first reflective surface 1102 is located. The reflective member 130 is provided with a second reflective surface facing the light guide 110. In this case, the first reflective surface 1102 is arranged opposite to the second reflective surface. Specifically, the reflective member 130 and the light guide 110 can be bonded by a first adhesive layer 171. The first adhesive layer 171 here is a transparent adhesive material, so that it can both play a bonding role and avoid blocking light. The second reflecting surface can reflect the light emitted from the first reflecting surface 1102 back into the light guide 110, thereby improving the utilization efficiency of the light and effectively improving the energy efficiency of the light-emitting component 100. The reflecting component 130 and the light guide 110 are arranged along the first direction mentioned above. A first notch 1301 is provided on the edge of the side of the reflecting component 130 facing the light source 120. The first notch 1301 is provided on the side of the reflecting component 130 close to the light source 120. It can also be understood that the first notch 1301 is provided on the light-incoming side of the light-emitting component 100. The opening of the first notch 1301 faces the light source 120. At this time, the first notch 1301 is provided at the position corresponding to the reflecting component 130 and the light source 120. The position of the first notch 1301 mainly corresponds to the small-angle light emitted by the light source 120. The small-angle light here refers to the light with a small angle to the central optical axis of the light source 120. At this time, the position of the first notch 1301 is hollow, so the light at the position corresponding to the first notch 1301 on the light guide 110 is directly emitted through the first notch 1301 and cannot be reflected into the light guide 110 again. Therefore, the utilization rate of the light at the position corresponding to the first notch 1301 on the light guide 110 is reduced.

[0020] In the specific light-emitting process, the light emitted by the light source 120 enters the light guide 110 through the light incident surface 1103, and then is reflected by the first reflection surface 1102 and / or the second reflection surface, and is emitted through the light emitting surface 1101, thereby forming a light-emitting effect.

[0021] In the embodiments disclosed herein, the light-emitting assembly 100 improves the overall light utilization efficiency by providing the reflective microstructure 1104 and the reflective member 130 on one side of the first reflective surface 1102, thereby facilitating increased light output brightness. Consequently, the brightness of the light output surface 1101 on the side away from the light source 120 is significantly enhanced. Furthermore, a first notch 1301 is provided on the reflective member 130 at the light entrance position of the light guide 110. This reduces the light utilization efficiency at the light entrance position of the light guide 110, thereby reducing the light intensity at the light entrance position of the light guide 110 and, therefore, the brightness at the light entrance position of the light guide 110. Therefore, the brightness of the side of the light emitting surface 1101 away from the light source 120 is increased by the reflective microstructure 1104 and the reflective component 130, while the brightness of the side of the light emitting surface 1101 close to the light source 120 is reduced by the first notch 1301. This is beneficial to balancing the brightness of the light emitting surface 1101, and further beneficial to improving the light emission uniformity of the light emitting component 100, thereby improving the optical performance of the electronic device.

[0022] In the embodiment of the present application, the design of the reflective microstructure 1104, the reflective member 130 and the first notch 1301 can improve the light uniformity of the light-emitting component 100 as a whole, thereby shortening the distance between the side of the light-emitting surface 1101 close to the light source 120 and the light-emitting light source 120, thereby facilitating the reduction of the size of the light-emitting component 100, and further facilitating the optimization of the stacking and arrangement of electronic devices, thereby achieving the light uniformity of the light-emitting component 100 in an extremely narrow space (such as when the mixed light distance is less than 3.67 mm or less).

[0023] Furthermore, in the embodiment disclosed herein, the brightness of the light emitting surface 1101 is greater because the side of the light emitting surface 1101 closest to the light source 120 is closer to the light source 120. Furthermore, the provision of the reflective microstructure 1104 and the reflective member 130 further improves light utilization efficiency, thereby further improving the energy efficiency of the light emitting assembly 100.

[0024] In another optional embodiment, the light guide 110 may include a light input portion 111 and a light output portion 112. The light input portion 111 may have the aforementioned light input surface 1103. The light output portion 112 may be located on the side of the light input portion 111 facing away from the light input surface 1103. The light output surface 1101 and the first reflective surface 1102 may be provided on opposite sides of the light output portion 112, respectively. The reflector 130 may have a first reflective region 131 and a second reflective region 132 arranged in parallel. The first reflective region 131 may overlap the light input portion 111, and the second reflective region 132 may face the light output portion 112. The first notch 1301 may be provided on the side of the first reflective region 131 facing away from the second reflective region 132. In this embodiment, light emitted by the light source 120 first enters the light input portion 111, is homogenized by the light input portion 111, and then is transmitted to the light output portion 112. At this time, the light input portion 111 can first homogenize the light, thereby further improving the uniformity of light output from the light emitting assembly 100. In addition, the design of the reflective microstructure 1104, the reflective member 130, and the first notch 1301 in the present application solution shortens the size of the light input portion 111. Therefore, the technical solution disclosed in the present application can not only improve the uniformity of light output from the light emitting assembly 100, but also shorten the size of the light input portion 111. Therefore, the light emitting assembly 100 has a better light output effect in an extremely narrow space.

[0025] Furthermore, the width of the light entrance portion 111 gradually decreases as it extends toward the light source 120. In this embodiment, the width of the light entrance portion 111 gradually decreases as it extends toward the light source 120. This reduces the size of the light entrance portion 111, thereby reducing the area of ​​the light guide 110 and making the structure of the light-emitting assembly 100 more compact. This helps reduce the installation space occupied by the light-emitting assembly 100 within the electronic device.

[0026] In another scheme, in the first direction, the contour shape of the orthographic projection of the light emitting portion 112 can be a square-circular structure, and the light input portion 111 can be opposite to one of the rounded corners or a straight edge of the square-circular structure. The square-circular structure here can be understood as a contour structure formed by alternating straight edges and arc-shaped edges end to end. It can also be understood that the edges of the square-circular structure are straight edges, and the corners of the square-circular structure are rounded corners. The two intersecting straight edges are transitionally connected by rounded corners. In this scheme, the light emitting portion 112 is a square-circular structure, so that the light emitting portion 112 has a larger light-guiding area, thereby having better light mixing and light-guiding performance. In addition, the area of ​​the square-circular structure is larger, which also facilitates the realization of a large halo light output of the light-emitting component 100.

[0027] In another optional solution, the reflector 130 can be a silver-plated reflector with a reflectivity greater than or equal to 95%. In this solution, the reflector 130 uses a high-gloss silver reflective surface with a reflectivity greater than or equal to 95%, thereby maximizing light reflection efficiency, particularly at the end of the light guide 110 away from the light source 120, thereby paving the way for improving the overall uniformity of the light-emitting assembly 100. Furthermore, the use of a silver-plated reflector can improve the overall brightness of the light-emitting assembly 100, thereby enhancing the energy efficiency of the light-emitting assembly 100.

[0028] Alternatively, silver can be deposited on a substrate such as glass, a polymer film, or a metal by vacuum coating or chemical reaction to form a silver film reflector 130, thereby enhancing the substrate's ability to reflect light. Of course, the reflector 130 can also be manufactured using other processes and substrates of other materials, which are not limited herein.

[0029] In another optional embodiment, a light absorbing film 140 is attached to the side of the light incident portion 111 facing away from the first reflective region 131. The light absorption rate of the light absorbing film 140 is greater than or equal to 99%. In this embodiment, the light absorbing film 140 is disposed at the light incident portion of the light guide 110 and can absorb light at the light incident location, thereby effectively reducing the light intensity at this location. This helps reduce the brightness of the light emitting surface 1101 on the side closest to the light source 120, thereby further improving the uniformity of light emitted from the light emitting surface 1101.

[0030] Optionally, the light absorbing film 140 may be made of materials such as black ink, black PET, etc. Of course, the light absorbing film 140 may also be made of other materials, which is not limited herein.

[0031] In another optional scheme, the light absorbing film 140 includes a black light-shielding film and a black adhesive portion, and the two opposite surfaces of the black light-shielding film are both black surfaces. The black surface on one side of the black light-shielding film can be attached to the side of the light incident portion 111 away from the first reflection area 131 through the black adhesive portion.

[0032] In one embodiment, a diffusion film 150 may be attached to the light-emitting surface 1101 of the light-emitting portion 112. The diffusion film 150 and the light guide plate may be bonded via a second adhesive layer 172. The second adhesive layer 172 is a transparent adhesive material, which not only provides adhesion but also prevents light from being blocked. In this embodiment, the diffusion film 150 can disperse light exiting the light-emitting surface 1101, thereby making the light emitted by the light-emitting component 100 softer and increasing the light output angle of the light-emitting component 100.

[0033] In addition, the diffusion film 150 can also shield the reflective microstructures 1104, thereby preventing users from directly observing the reflective microstructures 1104. The haze of the diffusion film 150 can be greater than 55%, and the transmittance can be less than or equal to 50%.

[0034] In the above embodiment, when the diffusion film 150 extends from the edge of the light emitting portion 112 to the light incident portion 111 , the brightness of the edge of the light emitting portion 112 increases, thereby easily generating a hotspot at the edge of the light emitting portion 112 .

[0035] Based on this, in another optional solution, such as Figure 4 As shown, along a direction perpendicular to the light-emitting surface 1101, the orthographic projection profile of the diffuser film 150 can be located within the light-emitting surface 1101. The diffuser film 150 is retracted by a first predetermined distance L relative to the intersection line between the light-emitting surface 1101 and the light-entering portion 111, toward a side edge of the light-entering portion 111, in a direction away from the light-entering portion 111. Here, the intersection line between the light-emitting surface 1101 and the light-entering portion 111 can be an edge line of the light-emitting surface 1101. Alternatively, it can be understood as the intersection line between the light-entering portion 111 and the light-emitting portion 112.

[0036] In this solution, the edge of the diffusion film 150 facing the light entrance portion 111 is retracted inward in a direction away from the light entrance portion 111, so that the diffusion film 150 is not easy to overlap or climb the wall onto the light entrance portion 111, thereby preventing the risk of explosion points at the edge of the light exit portion 112.

[0037] Optionally, the first preset distance L may be greater than or equal to 0.12 mm. Of course, the first preset distance L may also be other values, which is not limited herein.

[0038] In the above solution, the light-emitting component 100 generally forms a ring-shaped light effect. Therefore, in order to simplify the structure of the light-emitting component 100, a plurality of reflective microstructures 1104 are arranged on the first reflective surface 1102 to form a ring-shaped structure. In this case, the reflective microstructures 1104 do not cover the entire first reflective surface 1102, but are only provided in the ring-shaped area for light emission, thereby simplifying the manufacturing process of the light guide 110.

[0039] In another optional embodiment, the first reflective surface 1102 may include a first curved reflective area 11021 and a second curved reflective area 11022 connected end to end. The first curved reflective area 11021 and the second curved reflective area 11022 may form a ring-shaped structure. The first curved reflective area 11021 and the second curved reflective area 11022 may be arranged in a direction away from the light source 120, and the first notch 1301 may correspond to the middle arc segment of the first curved reflective area 11021. It can be understood here that the first notch 1301 is located in the middle of the first curved reflective area 11021. Reflective microstructures 1104 may be provided on both the first curved reflective area 11021 and the second curved reflective area 11022. The density of the reflective microstructures 1104 on the first curved reflective area 11021 increases gradually from the middle arc segment toward the ends of the first curved reflective area 11021.

[0040] In this solution, since the middle arc segment of the first arc-shaped reflection area 11021 is opposite to the light source 120, the density of the reflective microstructure 1104 in the middle arc segment of the first arc-shaped reflection area 11021 is relatively small, thereby reducing the reflection intensity of the light at the light incident position of the light guide 110, thereby minimizing the light output to the greatest extent, which is beneficial to further improve the light output uniformity of the light-emitting component 100.

[0041] In another alternative embodiment, the first curved reflective region 11021 may include a first curved segment 11021a, an intermediate curved segment 11021b, and a second curved segment 11021c, connected in sequence. The end of the first curved segment 11021a facing away from the intermediate curved segment 11021b is connected to one end of the second curved reflective region 11022, and the end of the second curved segment 11021c facing away from the intermediate curved segment 11021b is connected to the other end of the second curved reflective region 11022. The aforementioned first notch 1301 may correspond to the intermediate curved segment. Reflective microstructures 1104 may be provided on the first and second curved segments 11021a and 11021c, while the intermediate curved segment 11021b is not provided with reflective microstructures 1104. The reflective microstructures 1104 on the first and second curved segments 11021a and 11021c may have a density that gradually increases in a direction away from the intermediate curved segment 11021b.

[0042] In another optional solution, the reflective microstructures 1104 on the first curved reflective area 11021 are different from the reflective microstructures 1104 on the second curved reflective area 11022. In this solution, since the first curved reflective area 11021 and the second curved reflective area 11022 are at different distances from the light source 120, by providing different reflective microstructures 1104, the light intensity at the light emitting positions corresponding to the first curved reflective area 11021 and the second curved reflective area 11022 can be controlled accordingly, thereby ensuring relatively uniform light in each area of ​​the light emitting surface 1101, thereby further improving the optical performance of the light emitting component 100.

[0043] Optionally, the difference in the reflective microstructures 1104 may be understood as a difference in at least one of the shape, volume, density or arrangement of the reflective microstructures 1104 .

[0044] For example, the distance between two adjacent reflective microstructures 1104 on the first curved reflective area 11021 is different from the distance between two adjacent reflective microstructures 1104 on the second curved reflective area 11022. Furthermore, the distances between any two adjacent reflective microstructures 1104 on the first curved reflective area 11021 are different, while the distances between any two adjacent reflective microstructures 1104 on the second curved reflective area 11022 are the same. For another example, the sizes of the reflective microstructures 1104 on the first curved reflective area 11021 are different from the sizes of the reflective microstructures 1104 on the second curved reflective area 11022.

[0045] Optionally, the reflective microstructure 1104 may be formed by a groove on the first reflective surface 1102. Of course, the reflective microstructure 1104 is not limited to a groove, and may also be a protrusion, a boss, etc. The specific shape of the reflective microstructure 1104 is not limited herein.

[0046] In another optional solution, the light entrance portion 111 may include a first bent section 1111 and a second bent section 1112. The first bent section 1111 may be connected to the light exit portion 112 via the second bent section 1112. The end of the first bent section 1111 facing away from the second bent section 1112 may be provided with a light entrance surface 1103. A first angle may be formed between the first bent section 1111 and the second bent section 1112, and a second angle may be formed between the second bent section 1112 and the light exit portion 112. In this solution, the light entrance portion 111 is a bent structure, so that a certain height difference can be formed between the light exit surface 1101 and the light entrance surface 1103, thereby preventing the light source 120 and the light guide 110 from overlapping in the same plane, thereby facilitating a reduction in the overall volume of the light emitting assembly 100. In addition, when the light source 120 and the light emitting surface 1101 are at the same distance, the light input portion 111 is a bent structure. Compared with the structure in which the light input portion 111 and the light output portion 112 are in the same plane, the length of the light input portion 111 is longer and the light averaging path is longer, so the light averaging performance is better, which is beneficial to further improve the optical performance of the light emitting component 100.

[0047] Furthermore, the first angle and the second angle can be equal or complementary to each other. In this case, since the first angle and the second angle are equal or complementary, the first bent section 1111 and the light-emitting portion 112 are parallel. In this case, when light is transmitted therethrough, it is easy to maintain its original propagation direction, thereby helping to reduce energy loss caused by directional deviation.

[0048] Optionally, both the first angle and the second angle may be obtuse angles, and this document does not limit the specific values ​​of the first angle and the second angle.

[0049] The intersection line between the light emitting surface 1101 and the light incident portion 111 in the above solution can be understood as the intersection line between the second bending section 1112 and the light emitting portion 112 .

[0050] In order to facilitate bending of the light incident portion 111, in another optional solution, the thickness of the light incident portion 111 may be smaller than the thickness of the light exit portion 112. In this case, the thickness of the light incident portion 111 is smaller, and thus it is easier to bend.

[0051] In another optional embodiment, the sidewall of the first notch 1301 opposite to its opening may be an arc-shaped concave surface. In this case, the first notch 1301 is an arc-shaped recessed structure. In this solution, since the light intensity of the light source 120 is the same over the same arc, configuring the first notch 1301 as an arc-shaped recessed structure more closely approximates the light intensity distribution of the light source 120. This can minimize reflections at the light entry location and further reduce the hotspot at the center of the light entry location, thereby further improving the optical performance of the light-emitting component 100.

[0052] Figure 15 This is a polar coordinate diagram of the light intensity distribution of the light source 120, with the light source as the center, the angle as the polar angle, and the light intensity as the polar diameter. The light intensity distribution curve presents a symmetrical figure with the normal direction as the symmetry axis. The light intensity is the highest in the normal direction, and the light intensity gradually decreases as the angle deviates from the normal direction. The curve shape is similar to an "oblate circle". At this time, the contour structure of the first notch 1301 can be the same as Figure 3 The curves of the polar coordinate diagram of the light intensity distribution of the light source 120 are the same or similar.

[0053] Furthermore, the first notch 1301 may have a first side wall 1301a, a second side wall 1301b and a third side wall 1301c, wherein the first side wall 1301a and the third side wall 1301c are respectively located at the two ends of the second side wall 1301b, and the second side wall 1301b is an arc-shaped concave surface. The outer contour of the second side wall 1301b may be the same as the above Figure 3 The curve of the polar coordinate graph of the light intensity distribution of the light source 120 is the same or similar. The first side wall 1301a and the end of the third side wall 1301c facing away from the second side wall 1301b can form the opening of the first notch 1301. The opening of the first notch 1301 can be opposite the second side wall 1301b. Here, the second side wall 1301b is the bottom wall of the first notch 1301. In the direction from the opening of the first notch 1301 to the second side wall 1301b, the distance between the first side wall 1301a and the third side wall 1301c gradually decreases.

[0054] In this solution, the opening of the first notch 1301 is a trumpet-shaped structure, so the size of the opening of the first notch 1301 is further increased, thereby further reducing the light reflection efficiency at the light entrance position of the light guide 110, thereby further reducing the explosion point at the center of the light entrance position of the light guide 110. At the same time, as the distance from the light source 120 increases, the distance between the first side wall 1301a and the third side wall 1301c gradually decreases, and the width of the first notch 1301 gradually decreases, thereby gradually increasing the amount of light reflection, thereby facilitating a smooth transition of light intensity during transmission, and avoiding the risk of the light intensity of the light entrance portion 111 being significantly weakened, thereby affecting the overall brightness of the light output.

[0055] In another optional solution, the light emitting surface of the light source 120 can be parallel to the light incident surface 1103, and the distance between the light emitting surface of the light source 120 and the light incident surface 1103 can be greater than or equal to 0.3 mm and less than or equal to 0.4 mm. Figure 10The distance h1 in FIG is the distance between the light emitting surface of the light source 120 and the light incident surface 1103. This solution allows as much light as possible from the light source 120 to be coupled into the light incident surface 1103, thereby further improving the light transmission efficiency and the luminous energy efficiency of the light emitting component 100.

[0056] In another optional embodiment, the light-emitting assembly 100 may further include a lampshade 160. The lampshade 160, the light guide 110, and the reflector 130 may be stacked in sequence. Here, the lampshade 160, the light guide 110, and the reflector 130 are stacked along the first direction described above. The stacking direction of the lampshade 160, the light guide 110, and the reflector 130 is the thickness direction of the light-emitting assembly 100. The lampshade 160 may have an annular light-emitting area 161. In the first direction, the orthographic projection of the annular light-emitting area 161 is located within the light-emitting surface 1101. The first direction may be the stacking direction of the lampshade 160, the light guide 110, and the reflector 130. The lampshade 160 has an annular light-emitting area 161. Because the lampshade 160 has an annular light-emitting area 161, when the light-emitting assembly 100 is in operation, the annular light-emitting area 161 on the lampshade 160 forms a luminous halo.

[0057] In this solution, the lampshade 160 can be used to cover other components of the light-emitting component 100, thereby avoiding the risk of other components of the light-emitting component 100 being exposed, thereby helping to improve the appearance performance of the light-emitting component 100.

[0058] Optionally, along the first direction, the positive projection outline of the annular light emitting area 161 of the lampshade 160 is located within the light emitting surface 1101, thereby ensuring that the light emitted from the light emitting surface 1101 can enter the annular light emitting area 161, thereby avoiding the risk of the annular light emitting area 161 being blocked, resulting in a local dark area in the annular light emitting area 161.

[0059] Furthermore, in the first direction, the orthographic projection of the annular light-emitting area 161 is located within the annular structure formed by the plurality of reflective microstructures 1104. In this solution, since the light-emitting area of ​​the lampshade 160 is annular, the annular structure is opposite the annular light-emitting area. This avoids providing the reflective microstructure 1104 in an area of ​​the first reflective surface 1102 that is opposite the non-light-emitting area of ​​the lampshade 160, thereby reducing the difficulty and cost of manufacturing the light guide 110.

[0060] In the above solution, when the diffuser film 150 is attached to the light incident surface 1103 of the light guide 110, the diffuser film 150 is located between the light guide 110 and the lampshade 160. In this case, the diffuser film 150 and the lampshade 160 can be bonded together via the third adhesive layer 173. Of course, if the light-emitting assembly 100 does not have a lampshade 160, the third adhesive layer 173 can directly bond the diffuser film 150 to the device body 200, thereby achieving a fixed connection between the light-emitting assembly 100 and the device body 200.

[0061] In an optional embodiment, the lampshade 160 may include a first area and a second area, and the second area may be arranged around the first area, and the second area may form an annular light-emitting area 161. Part of the light-emitting surface 1101 of the light guide 110 is bonded to the first area. In this case, the area of ​​the light-emitting surface 1101 of the light guide 110 opposite to the first area is blocked by the first area and is therefore not used for light emission. The area of ​​the light-emitting surface 1101 of the light guide 110 opposite to the second area is used for light emission, thereby forming an annular light effect.

[0062] In another embodiment, a light-transmitting ring may protrude from the side of the second region facing away from the light guide 110 , and the light-transmitting ring is located on the surface of the first region facing away from the light guide 110 . In this case, the second region and the light-transmitting ring form an annular light exit area 161 .

[0063] Furthermore, the lampshade 160 may also include a decorative sheet, which may be attached to the first region, and the light-transmitting ring may be disposed around the decorative sheet. In this embodiment, the decorative sheet can cover the first region, thereby preventing it from being exposed. It can also block the first region, preventing light emitted from the light guide 110 from escaping from the first region. Furthermore, the decorative sheet disposed in the first region can further enhance the appearance of the light-emitting assembly 100.

[0064] Optionally, the lampshade 160 can be made of transparent glass, transparent resin, etc. The lampshade 160 can be attached to the housing 210 or the decorative cover of the electronic device by using a bonding structure such as double-sided tape or glue.

[0065] like Figure 10 As shown, the minimum distance between the light-emitting surface of the light source 120 and the light-emitting surface 1101 can be h2, and h2 can be greater than or equal to 3.67 mm. Of course, h2 can also be understood as the minimum distance between the annular light-emitting area 161 and the light-emitting surface of the light source 120. In this solution, through the design of the reflective microstructure 1104, the silver-plated reflective member 130, the first notch 1301, and the light-absorbing film 140 in the embodiment of the present application, h2 can be reduced to 3.67 mm, thereby greatly compressing the size of the light-emitting component 100, so that the light-emitting component 100 has high optical performance even in an extremely narrow installation space, which is conducive to optimizing the layout structure of the electronic device.

[0066] The light-emitting assembly 100 in the embodiment of the present application can be used as a fill light, and of course, can also be used as a breathing light. The light-emitting assembly 100 disclosed in the present application has a relatively small thickness, and the design of the reflective microstructure 1104, the silver-plated reflector 130, the first notch 1301, and the light-absorbing film 140 enables the light-emitting assembly 100 to have good luminous uniformity, luminous energy efficiency, and color mixing effect even in an extremely narrow installation space. Therefore, when the light-emitting assembly 100 is lit, it can form a uniform, soft, and uniformly mixed color halo.

[0067] Based on the light-emitting component 100 disclosed in the embodiment of the present application, the embodiment of the present application further discloses an electronic device, and the disclosed electronic device includes the light-emitting component 100 described in any of the above embodiments.

[0068] The electronic device disclosed in this application may further include a device body 200 and a circuit board 300. The device body 200 includes, but is not limited to, a housing 210, a display screen, and other components. The circuit board 300 and the light-emitting assembly 100 may both be disposed on the device body 200, and the light source 120 of the light-emitting assembly 100 may be electrically connected to the circuit board 300.

[0069] In one embodiment, the light guide 110 of the light emitting assembly 100 can be attached to the housing 210 of the device body 200, and the light source 120 can be disposed on a circuit board 300. The circuit board 300 can be a main board or a sub-board of the electronic device. The circuit board 300 can provide power to the light source 120 and control the on and off of the light source 120.

[0070] Of course, when the lighting assembly 100 includes the lampshade 160 , the lampshade 160 can be attached to the housing 210 .

[0071] In another optional embodiment, the device body 200 may include a housing 210 and a camera decoration 220. The camera decoration 220 may be disposed on the housing 210. Here, the camera decoration 220 is used to cover the camera module installed inside the housing 210. The side of the light guide 110 facing away from the reflector 130 may be attached to the camera decoration 220. In the case where the light-emitting assembly 100 includes a lampshade 160, the lampshade 160 may be attached to the camera decoration 220. The camera decoration 220 may have a first light-transmitting area 221, and the light incident surface 1103 may be disposed opposite the first light-transmitting area 221.

[0072] In this solution, the light-emitting component 100 can be integrated on the camera decoration 220, so as to separate the light-emitting component 100 from the inside of the shell 210, thereby avoiding the occupation of the shell 210 by the light-emitting component 100, thereby optimizing the layout structure of the electronic device.

[0073] In an alternative approach, Figure 13 As shown, the first light-transmitting area 221 can be a solid area that can transmit light. In this case, the camera decorative member 220 is a non-perforated structure, and a light-shielding silk screen is performed on the lens of the camera decorative member 220 to retain a light-transmitting area, which is the first light-transmitting area 221. The first light-transmitting area 221 is opposite to the light-emitting surface 1101.

[0074] In another approach, Figure 14 As shown, the first light-transmitting area 221 can be a through-hole. In this case, the camera decorative member 220 has an open-hole structure, and the light-emitting surface 1101 of the light guide 110 can be opposite the through-hole. Alternatively, when the light-emitting assembly 100 includes a lampshade 160, a portion of the lampshade 160 is located within the through-hole, and the portion of the lampshade 160 located within the through-hole is the aforementioned annular light-emitting area 161. Specifically, the light-transmitting ring of the lampshade 160 can be located within the through-hole.

[0075] Furthermore, the camera decorative member 220 may also be provided with a second light-transmitting region 222 arranged parallel to the first light-transmitting region 221. The second light-transmitting region 222 may be arranged opposite the camera module of the device body 200, and the light source 120 may be located between the light guide 110 and the camera module. The central axis of the light-emitting surface of the light source 120 is parallel to the central optical axis of the camera module, and the central axis of the light source 120 may pass through the central axis of the light-emitting surface and the central optical axis of the camera module, respectively. The central axis of the light-emitting surface here is the central axis of the light-emitting portion 112 mentioned above. In this solution, while reducing the size between the light-emitting surface 1101 and the light source 120, the light source 120 can be arranged between the light guide 110 and the camera module, thereby making the arrangement of the light-emitting component 100 and the camera module more compact, thereby helping to reduce the arrangement space of the light-emitting component 100 and the camera module, thereby reducing the difficulty of stacking the light-emitting component 100 and the camera module.

[0076] In another alternative embodiment, a raised portion 223 may be provided on the side of the camera trim 220 facing the light-emitting assembly 100. The raised portion 223 extends circumferentially around the camera trim 220 to define a positioning space 2231. A second notch 2232 is formed between the opposing ends of the raised portion 223. The aforementioned light exit portion 112 may be located within the positioning space 2231, and at least a portion of the light entrance portion 111 may extend out of the positioning space 2231 through the second notch 2232.

[0077] In this solution, the light output portion 112 can be located in the positioning space 2231, and the positioning space 2231 can position the installation position of the light output portion 112. At the same time, the second notch 2232 can limit the light input portion 111, which is beneficial to improve the assembly accuracy of the light guide 110 and the camera decorative component 220.

[0078] In an optional solution, the camera decoration 220 includes a decoration body 2201, a first lens 2202, and a second lens 2203. The decoration body 2201 is mounted on the housing 210. Specifically, the decoration body 2201 is mounted on the battery cover of the housing 210. The decoration body 2201 is provided with a first through hole and a second through hole. The first lens 2202 and the second lens 2203 are both disposed on the decoration body 2201. The first lens 2202 covers the first through hole to form the first light-transmitting area 221, and the second lens 2203 covers the second through hole to form the second light-transmitting area 222.

[0079] Alternatively, the decorative element body 2201 may be a one-piece structure. Alternatively, the decorative element body 2201 may be a split structure. For example, the decorative element body 2201 may include a base plate 2201a and a cover plate 2201b. The base plate 2201a is connected to the housing 210, and the cover plate 2201b is located on the side of the base plate 2201a facing away from the housing 210. In this case, the decorative element body 2201 is a detachable structure, so that the decorative element body 2201 can be made of different materials, which can improve the appearance and performance while reducing the production cost.

[0080] The electronic devices disclosed in the embodiments of the present application may be smart phones, tablet computers, e-book readers, wearable devices (such as smart watches), electronic game consoles, and other devices. The embodiments of the present application do not limit the specific types of electronic devices.

[0081] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A light emitting component, characterized in that: include: a light guide having a light emitting surface, a first reflective surface, and a light incident surface, the light emitting surface and the first reflective surface being located on opposite sides of the light guide, the light incident surface being adjacent to both the light emitting surface and the first reflective surface, and the first reflective surface being provided with a plurality of reflective microstructures arranged at intervals; a luminous light source, the luminous light source being arranged opposite to the light incident surface; a reflector, the reflector being superposed on the light guide, the reflector being located on the side where the first reflective surface is located, the reflector being provided with a second reflective surface on a side facing the light guide, and a first notch being provided on an edge of a side of the reflector facing the light source, the opening of the first notch being directed toward the light source; The light emitted by the luminous light source enters the light guide component through the light incident surface, is reflected by the first reflecting surface and / or the second reflecting surface, and is emitted through the light emitting surface.

2. The light emitting assembly according to claim 1, characterized in that: The light guide comprises a light incident portion and a light emitting portion, the light incident portion having the light incident surface, the light emitting portion being located on a side of the light incident portion away from the light incident surface, and the light emitting surface and the first reflecting surface being respectively provided on two opposite sides of the light emitting portion; The reflector has a first reflective area and a second reflective area arranged in parallel, the first reflective area overlaps with the light incident portion, the second reflective area is opposite to the light exit portion, and the first notch is opened on a side of the first reflective area away from the second reflective area.

3. The light emitting assembly according to claim 2, characterized in that: The reflector is a silver-plated reflector, and the reflectivity of the reflector is greater than or equal to 95%.

4. The light emitting assembly according to claim 2, characterized in that: A light absorbing film is attached to a side of the light incident portion away from the first reflective area, and the light absorption rate of the light absorbing film is greater than or equal to 99%.

5. The light emitting assembly according to claim 2, characterized in that: The diffusion film is attached to the light emitting surface of the light emitting portion, and in a direction perpendicular to the light emitting surface, the orthographic projection outline of the diffusion film is located within the light emitting surface; the edge of one side of the diffusion film toward the light incident portion is retracted by a first preset distance relative to the intersection line between the light emitting surface and the light incident portion in a direction away from the light incident portion.

6. The light emitting assembly according to claim 1, wherein: The first reflecting surface has a first arc-shaped reflecting area and a second arc-shaped reflecting area connected end to end, and the first arc-shaped reflecting area and the second arc-shaped reflecting area form a ring structure; the first arc-shaped reflecting area and the second arc-shaped reflecting area are arranged in a direction away from the light source, and the first notch corresponds to the middle arc segment of the first arc-shaped reflecting area, and the first arc-shaped reflecting area and the second arc-shaped reflecting area are both provided with the reflecting microstructure; the density of the reflecting microstructure on the first arc-shaped reflecting area increases from the middle arc segment of the first arc-shaped reflecting area to its two ends.

7. The light emitting assembly according to claim 6, characterized in that: The reflective microstructure on the first arc-shaped reflective area is different from the reflective microstructure on the second arc-shaped reflective area.

8. The light emitting assembly according to claim 2, characterized in that: The light incident portion includes a first bending section and a second bending section, the first bending section is connected to the light output portion through the second bending section, the light incident surface is provided at one end of the first bending section facing away from the second bending section, a first angle is formed between the first bending section and the second bending section, a second angle is formed between the second bending section and the light output portion, and the first angle and the second angle are equal to or complementary to each other.

9. The light emitting assembly according to claim 1, wherein: The first notch has a first side wall, a second side wall and a third side wall, the first side wall and the third side wall are respectively located at the two ends of the second side wall, the second side wall is an arc-shaped concave surface, and the first side wall and the third side wall form an opening of the first notch at one end facing away from the second side wall. The opening of the first notch is opposite to the second side wall, and the distance between the first side wall and the third side wall gradually decreases in the direction in which the opening of the first notch points to its second side wall.

10. The light emitting assembly according to claim 1, wherein: The light emitting surface of the light source is parallel to the light incident surface, and the distance between the light emitting surface of the light source and the light incident surface is greater than or equal to 0.3 mm and less than or equal to 0.4 mm.

11. The light emitting assembly according to claim 1, characterized in that: The light-emitting component also includes a lampshade, wherein the lampshade, the light guide and the reflector are stacked in sequence, and the lampshade has an annular light-emitting area. In a first direction, the positive projection outline of the annular light-emitting area is located within the light-emitting surface; wherein the first direction is the stacking direction of the lampshade, the light guide and the reflector.

12. An electronic device, characterized in that: The device comprises a device body, a circuit board and the light-emitting assembly according to any one of claims 1 to 11, wherein the circuit board and the light-emitting assembly are both arranged on the device body, and the light source of the light-emitting assembly is electrically connected to the circuit board.

13. The electronic device according to claim 12, wherein: The device body includes a shell and a camera decoration. The camera decoration is arranged on the shell. The side of the light guide member facing away from the reflective member is attached to the camera decoration. The camera decoration is provided with a first light-transmitting area. The light incident surface is arranged opposite to the first light-transmitting area.

14. The electronic device according to claim 13, wherein: The camera decoration also has a second light-transmitting area arranged parallel to the first light-transmitting area, and the second light-transmitting area is used to be arranged opposite to the camera module of the device body. The light source is located between the light guide and the camera module. The central axis of the light-emitting surface of the light source is parallel to the central optical axis of the camera module, and the central axis of the light source passes through the central axis of the light-emitting surface and the central optical axis of the camera module respectively.

15. The electronic device according to claim 13, wherein: The camera decorative part is provided with a raised portion on the side facing the light-emitting component, and the raised portion extends along the circumference of the camera decorative part to enclose a positioning space, and a second notch is formed between the two opposite ends of the raised portion; the light guide part includes a light input portion and a light output portion, the light input portion has the light input surface, the light output portion is located on the side of the light input portion away from the light input surface, and the light output surface and the first reflecting surface are respectively provided on two opposite sides of the light output portion; the light output portion is located in the positioning space, and at least a portion of the light input portion extends out of the positioning space through the second notch.

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