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 lampshade, a light guide part and a light-emitting source; the lampshade is provided with an annular light-emitting area. The light guide part is provided with a first surface, a second surface and a light incident surface, the light incident surface is located on the side adjacent to the first surface and the second surface, the first surface and the second surface are located on the two opposite sides of the light guide part, the light incident surface is of a convex surface structure, and the second surface is provided with a plurality of reflection microstructures arranged at intervals; the lampshade and the light guide part are overlapped, and the first surface is located on the side, facing the lampshade, of the light guide part. In the first direction, the orthographic projection contour of the annular light emitting area is located in the first surface. Wherein the first direction is the overlapping direction of the lampshade and the light guide part; the light-emitting source is located on the side where the light-in face of the light guide part is located, and the light-emitting face of the light-emitting source faces the light-in face. Light emitted by the light-emitting light source passes through the light-in face, the second surface and the first surface and then is emitted out of the annular light-out area.

Description

Technical Field

[0001] This application belongs to the technical field of optical devices, and particularly 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 tablet computers have become indispensable tools for people. When facing a wide variety of electronic devices, users not only need to consider whether the functions of the electronic devices meet their own needs, but also the appearance expressiveness of the electronic devices is one of the important factors that influence consumers' purchase decisions. In order to make the appearance expressiveness of the electronic devices more abundant, the electronic devices are provided with light-emitting components, and the appearance of the electronic devices can have more abundant expressiveness with the addition of the light-emitting components.

[0003] In the related art, the light-emitting component includes a lamp cover, a light guide member, and a light-emitting light source. The lamp cover, the light guide member, and the light-emitting light source are sequentially stacked in the optical axis direction of the light-emitting light source. At this time, the light emitted by the light-emitting light source is guided by the light guide member and then emitted from the lamp cover.

[0004] However, the sequential stacking of the lamp cover, the light guide member, and the light-emitting light source in the optical axis direction of the light-emitting light source easily results in a relatively large stacking thickness of the light-emitting component, and thus leads to the problem of a relatively large thickness of the entire electronic device. Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide a light-emitting component and an electronic device, which can solve the technical problem of a relatively large stacking thickness of the light-emitting component.

[0006] To solve the above technical problem, this application is implemented as follows: In a first aspect, this application discloses a light-emitting component, including: A lamp cover, the lamp cover having an annular light-emitting area; A light guide member, the light guide member having a first surface, a second surface, and a light-incident surface. The light-incident surface is located on a side adjacent to the first surface and the second surface. The first surface and the second surface are located on two opposite sides of the light guide member. The light-incident surface is a convex surface structure. The second surface is provided with a plurality of reflection microstructures arranged at intervals; the lamp cover and the light guide member are stacked, and the first surface is located on a side of the light guide member facing the lamp cover; in a first direction, the orthographic projection contour of the annular light-emitting area is located within the first surface; wherein, the first direction is the stacking direction of the lamp cover and the light guide member; A light-emitting light source, the light-emitting light source being located on a side where the light-incident surface of the light guide member is located, and the light-emitting surface of the light-emitting light source facing the light-incident surface; wherein, the light emitted by the light-emitting light source is emitted from the annular light-emitting area after passing through the light-incident surface, the second surface, and the first surface.

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

[0008] In an embodiment of the present application, the light guide member has a first surface, a second surface, and a light incident surface. The first surface and the second surface are located on two opposite sides of the light guide member. The first surface is located on the side of the light guide member facing the lamp shade, and the light incident surface is located on the side adjacent to the first surface. The light-emitting light source is located on the side where the light incident surface of the light guide member is located. At this time, the light-emitting light source is located on the side of the light guide member and the lamp shade. Therefore, the light-emitting light source is misaligned with both the light guide member and the lamp shade, so that the light-emitting light source can be arranged side by side with the light guide member and the lamp shade. Therefore, it is beneficial to reduce the stacking thickness of the light-emitting component. At the same time, the light incident surface is a convex surface structure, and the second surface is provided with reflection microstructures arranged at intervals. The convex surface structure of the light incident surface can secondarily modulate the large-angle outgoing light of the light-emitting light source, thereby accurately regulating the light angle, so as to reduce the number of internal reflections of light in the light guide member, and further reduce the light loss. In addition, the reflection microstructures provided on the second surface can improve the reflection performance of light, so that the output brightness of light can be improved. Therefore, the convex surface structure and the reflection microstructures can improve the problem of uneven light emission caused by the eccentricity of the light-emitting light source with the light guide member and the lamp shade. Therefore, the light-emitting component disclosed in the present application has both good light emission uniformity and a small thickness. Description of the Drawings

[0009] Figure 1 and Figure 2 is a schematic structural diagram of a light-emitting component disclosed in an embodiment of the present application; Figure 3 is a cross-sectional view of a light-emitting component disclosed in an embodiment of the present application; Figure 4 is a partial schematic structural diagram of a light-emitting component disclosed in an embodiment of the present application; Figures 5 to 8 is a schematic structural diagram of a light guide member of a light-emitting component disclosed in an embodiment of the present application; Figures 9 to 11 is a schematic structural diagram of a lamp shade of a light-emitting component disclosed in an embodiment of the present application; Figure 12 is a cross-sectional view of a lamp shade of a light-emitting component disclosed in an embodiment of the present application; Figure 13 and Figure 14 is Figure 12 a partial enlarged view of

[0010] Description of the Reference Numerals: 100 - Light emitting component, 110 - Lamp shade, 1101 - Annular light emitting area, 1102 - Textured surface, 1102a - Annular teeth, 1102a1 - First side wall, 1102a2 - Second side wall, 1102a3 - Bottom wall, 111 - Base part, 1111 - First area, 1112 - Second area, 1113 - Third area, 112 - Transparent ring, 113 - Positioning protrusion, 120 - Light guide, 121 - Light incident part, 122 - Light emitting part, 1201 - First surface, 1202 - Light incident surface, 1202a - First light distribution surface, 1202b - Second light distribution surface, 1203 - Second surface, 1203a - Reflection area, 1203a1 - Reflection microstructure, 1203b - Annular area, 130 - Light emitting source, 140 - Striped protrusion, 141 - Positioning space, 142 - Notch, 150 - First reflection film, 160 - Light shielding film, 170 - Second reflection film, 180 - Diffusion film, 190 - Decorative piece, 200 - Circuit board, 300 - Decorative part, 310 - Mounting hole. Detailed implementation manners

[0011] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0012] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0013] Next, in conjunction with the accompanying drawings, the light emitting component and the electronic device provided in the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0014] Please refer to Figures 1 to 11 , an embodiment of the present application discloses a light emitting component 100, and the disclosed light emitting component 100 includes a lamp shade 110, a light guide 120, and a light emitting source 130.

[0015] The lamp cover 110 is an exterior part of the lighting component 100. The lamp cover 110 is used to cover other components of the lighting component 100, so as to prevent other components of the lighting component 100 from being exposed. At the same time, the lamp cover 110 is also used to transmit light, so as to achieve the lighting effect. The lamp cover 110 has an annular light-emitting area 1101. Since the lamp cover 110 has the annular light-emitting area 1101, when the lighting component 100 is working, an annular light-emitting ring can be formed on the annular light-emitting area 1101 of the lamp cover 110. The light guide 120 is used to transmit light, so the light guide 120 can be made of transparent glass, resin and other materials. Specifically, the light guide 120 has a first surface 1201, a second surface 1203 and a light-incident surface 1202. The first surface 1201 and the second surface 1203 are located on two opposite sides of the light guide 120. For example, the first surface 1201 can be the top surface of the light guide 120, and the second surface 1203 can be the bottom surface of the light guide 120. The light-incident surface 1202 is located on a side adjacent to the first surface 1201 and the second surface 1203. At this time, the light-incident surface 1202 can be the side surface of the light guide 120. The lamp cover 110 and the light guide 120 are stacked, and the first surface 1201 is located on the side of the light guide 120 facing the lamp cover 110. At this time, the first surface 1201 faces the lamp cover 110, and the second surface 1203 faces away from the lamp cover 110. In the first direction, the orthographic projection contour of the annular light-emitting area 1101 is located within the first surface 1201. Wherein, the first direction is the stacking direction of the lamp cover 110 and the light guide 120. It can also be understood here that the first direction is the thickness direction of the lighting component 100. In the stacking direction of the lamp cover 110 and the light guide 120, the orthographic projection contour of the annular light-emitting area 1101 of the lamp cover 110 is located within the first surface 1201, so it is ensured that the light emitted from the first surface 1201 can enter the annular light-emitting area 1101, thereby avoiding the risk that the annular light-emitting area 1101 is blocked, resulting in a local dark area in the annular light-emitting area 1101.

[0016] The light emitted by the light-emitting light source 130 passes through the light guide member 120 and then is emitted from the annular light-emitting area 1101 on the lamp cover 110. Optionally, the light-emitting light source 130 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 light source 130 can also have other structures, which are not limited in this article. The light-emitting light source 130 is located on the side where the light-incident surface 1202 of the light guide member 120 is located, and the light-emitting surface of the light-emitting light source 130 faces the light-incident surface 1202. At this time, since the light-incident surface 1202 is located on the side of the light guide member 120, the light-emitting light source 130 is also located on the side parts of the light guide member 120 and the lamp cover 110. It can be understood here that the arrangement direction of the light guide member 120 and the light-emitting light source 130 can be the second direction, and the above-mentioned first direction and the second direction intersect. That is to say, the lamp cover 110 and the light guide member 120 are arranged in one direction, and the light guide member 120 and the light-emitting light source 130 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 obliquely, which are not limited in this article.

[0017] In the specific light-emitting process, the light emitted by the light-emitting light source 130 enters the light guide member 120 through the light-incident surface 1202, and then is reflected by the first surface 1201 and the second surface 1203, and finally is emitted from the light guide member 120 through the first surface 1201, and then is emitted through the annular light-emitting area 1101, thereby forming a light-emitting light ring.

[0018] In the embodiments disclosed in the present application, the light-incident surface 1202 of the light guide member 120 is arranged on the side adjacent to the first surface 1201 and the second surface 1203. Therefore, the light-emitting light source 130 can be arranged on the side parts of the light guide member 120 and the lamp cover 110. At this time, the light-emitting light source 130 is arranged in a misaligned manner with both the light guide member 120 and the lamp cover 110, so that the light-emitting light source 130 can be arranged side by side with the light guide member 120 and the lamp cover 110. Therefore, it is beneficial to reduce the stacking thickness of the light-emitting component 100, thereby being beneficial to reducing the thickness of the electronic device, and thus being beneficial to the thin and light design of the electronic device.

[0019] In the above solution, in order to further reduce the stacking thickness of the light-emitting component 100, usually the size of the light guide member 120 along the first direction is set to be small. It can be understood here that the thickness of the light guide member 120 is relatively thin. At this time, in order to avoid interference between the light-emitting light source 130 and the lamp cover 110 and other components of the electronic device, the light-emitting light source 130 is usually arranged in a direction relatively lower than the light guide member 120, which causes the light-emitting light source 130 to be misaligned relative to the light-incident surface 1202 and the center to be eccentric. Therefore, less light of the light-emitting light source 130 is coupled into the light guide film, resulting in problems such as low energy efficiency of the light-emitting component 100, uneven light emission when the ring is lit, and poor color mixing effect.

[0020] Based on this, in the embodiments disclosed in the present application, the light incident surface 1202 is a convex surface structure, and the protruding direction of the convex surface structure faces the light emitting light source 130. A plurality of reflection microstructures 1203a1 are arranged at intervals on the second surface 1203. At this time, the convex surface structure of the light incident surface 1202 couples more large-angle light rays into the light guide 120. At the same time, the convex surface structure can secondarily modulate the large-angle emitted light rays of the light emitting light source 130, so as to accurately control the light ray angle, so as to reduce the number of reflections of light rays in the light guide 120, and then enable more light rays to enter the light guide 120. At the same time, it can also effectively reduce the light loss, so the utilization efficiency of the light rays emitted by the light emitting light source 130 is greatly improved, and the optical performance of the light emitting assembly 100 is improved. At the same time, the reflection microstructures 1203a1 provided on the second surface 1203 can improve the reflection performance of light rays, so the output brightness and light mixing performance of light rays can be improved. Therefore, the convex surface structure and the reflection microstructures 1203a1 can effectively improve the problems of uneven light emission, poor energy efficiency, and poor color mixing effect caused by the eccentricity of the light emitting light source 130, so it is beneficial to improve the optical performance of the light emitting light source 130.

[0021] In the present application, the light incident surface 1202 is a convex surface structure, and a plurality of reflection microstructures 1203a1 are arranged at intervals on the second surface 1203, which can effectively improve the light emission brightness and energy efficiency of the light emitting assembly 100. Therefore, even in a bright environment, the light emitting halo of the light emitting assembly 100 can still be clearly visible, so it has a good optical effect.

[0022] In another alternative embodiment, the second surface 1203 may include a plurality of reflection regions 1203a. Two adjacent reflection regions 1203a may be a first reflection region and a second reflection region respectively. The distance between the first reflection region and the light emitting light source 130 is less than the distance between the second reflection region and the light emitting light source 130. The first reflection region herein refers to one of the two adjacent reflection regions 1203a that is closer to the light emitting light source 130, and the second reflection region refers to the other of the two adjacent reflection regions 1203a that is farther from the light emitting light source 130. It can also be understood here that in the above-mentioned second direction, the second reflection region is located on the side of the first reflection region away from the light emitting light source 130. A plurality of reflection microstructures 1203a1 may be arranged at intervals on both the first reflection region and the second reflection region.

[0023] Among them, the distribution density of the reflection microstructures 1203a1 on the first reflection region can be less than that of the reflection microstructures 1203a1 on the second reflection region. The density of the reflection microstructures 1203a1 here can be understood as the number of reflection microstructures 1203a1 per unit area. Since the distribution density of the reflection microstructures 1203a1 on the first reflection region is small, it can be understood that the number of reflection microstructures 1203a1 per unit area on the first reflection region is small, so the distance between two adjacent reflection microstructures 1203a1 is large. While the distribution density of the reflection microstructures 1203a1 on the second reflection region is large, so it can be understood that the number of reflection microstructures 1203a1 per unit area on the second reflection region is large, and thus the distance between two adjacent reflection microstructures 1203a1 is small. Of course, the density of the reflection microstructures 1203a1 can also be directly characterized by the number of reflection microstructures 1203a1. The more the number of reflection microstructures 1203a1, the greater the density. On the contrary, the fewer the number of reflection microstructures 1203a1, the smaller the density.

[0024] In this solution, the closer the light guide 120 is to the side of the light-emitting light source 130, the stronger its light effect. Therefore, it is necessary to reduce the number of reflection microstructures 1203a1 to reduce the light output brightness in this area. While the farther the light guide 120 is from the side of the light-emitting light source 130, the less light is transmitted. Therefore, it is necessary to increase the number of reflection microstructures 1203a1, so as to increase the light reflection amount and further improve the light output brightness in this area. Therefore, setting reflection microstructures 1203a1 with different densities in different reflection regions 1203a of the light guide 120 can further improve the light output uniformity of the light-emitting component 100.

[0025] In another alternative embodiment, the size of the reflection microstructures 1203a1 on the first reflection region can be larger than the size of the reflection microstructures 1203a1 on the second reflection region. The size of the reflection microstructures 1203a1 can be the area, volume, perimeter, radius, etc. of the reflection microstructures 1203a1. Or, the size of the reflection microstructures 1203a1 on the first reflection region is larger than the size of the reflection microstructures 1203a1 on the second reflection region. It can also be understood that in the first direction, the orthographic projection area of a single reflection microstructure 1203a1 on the first reflection region is larger than the orthographic projection area of a single reflection microstructure 1203a1 on the second reflection region.

[0026] In this solution, the closer the light guide 120 is to the light-emitting light source 130, the stronger its light efficiency. Therefore, the size of the reflection microstructure 1203a1 needs to be larger, and the reflection performance of the reflection microstructure 1203a1 is weaker, thus reducing the light output brightness in this area. And the farther the light guide 120 is from the light-emitting light source 130, the less light is transmitted. Therefore, the size of the reflection microstructure 1203a1 needs to be larger, and the reflection performance of the reflection microstructure 1203a1 is stronger, so as to increase the light reflection amount and then improve the light output brightness in this area. Therefore, different-sized reflection microstructures 1203a1 are provided in different reflection regions 1203a of the light guide 120, which can further improve the light output uniformity of the light-emitting component 100.

[0027] In another alternative embodiment, the distribution density of the reflection microstructures 1203a1 on the first reflection region can be less than the distribution density of the reflection microstructures 1203a1 on the second reflection region. At the same time, the size of the reflection microstructures 1203a1 on the first reflection region 1203a can be larger than the size of the reflection microstructures 1203a1 on the second reflection region. In this solution, the closer the light guide 120 is to the light-emitting light source 130, the smaller the density of the reflection microstructures 1203a1 and the larger the single size. And the farther the light guide 120 is from the light-emitting light source 130, the greater the density of the reflection microstructures 1203a1 and the smaller the single size. At this time, each reflection region 1203a has different sizes and distribution characteristics of the reflection microstructures 1203a1. The reflection regions 1203a with different structural characteristics can optimize the optical path of light in the light guide 120 and accurately transmit the light to the appropriate light output position and output it according to the appropriate energy requirements. Therefore, it can not only improve the output brightness but also ensure the uniformity of the ring brightness, thereby further enhancing the optical performance of the light-emitting component 100.

[0028] In another alternative embodiment, the reflection microstructure 1203a1 can be composed of grooves on the second surface 1203. In this solution, the structure of the grooves is simple, so the processing difficulty of the reflection microstructure 1203a1 is reduced, which is beneficial to reducing the manufacturing difficulty of the light-emitting component 100.

[0029] Optionally, the reflection microstructure 1203a1 can be a hemispherical groove.

[0030] Of course, the reflection microstructure 1203a1 is not limited to grooves and can also be in the shape of protrusions, bosses, etc. The specific shape of the reflection microstructure 1203a1 is not limited in this article.

[0031] In a specific solution, such as Figure 7As shown, the number of reflection regions 1203a can be three, namely reflection region one, reflection region two, and reflection region three. The distances between reflection region one, reflection region two, and reflection region three and the light-emitting light source 130 gradually increase. Reflection region one and reflection region two are two adjacent reflection regions 1203a. Since reflection region one is closer to the light-emitting light source 130, between reflection region one and reflection region two, reflection region one is the first reflection region mentioned above, and reflection region two is the second reflection region mentioned above. Similarly, reflection region two and reflection region three are two adjacent reflection regions 1203a. Since reflection region two is closer to the light-emitting light source 130, between reflection region two and reflection region three, reflection region two is the first reflection region mentioned above, and reflection region three is the second reflection region mentioned above. The radius of the reflection microstructures 1203a1 in reflection region one can be 0.0800 mm, and the spacing between two adjacent reflection microstructures 1203a1 can be 0.6250 mm. The radius of the reflection microstructures 1203a1 in reflection region two can be 0.0600 mm, and the spacing between two adjacent reflection microstructures 1203a1 can be 0.3774 mm. The radius of the reflection microstructures 1203a1 in reflection region three can be 0.0400 mm, and the spacing between two adjacent reflection microstructures 1203a1 can be 0.2439 mm.

[0032] Of course, the number of reflection regions 1203a is not limited to three and can be more, which is not restricted in this article. The distribution parameters of the reflection microstructures 1203a1 in each reflection region 1203a are not limited to the parameters listed above. The reflection microstructures 1203a1 in each reflection region 1203a can also be other distribution parameters, which is not restricted in this article.

[0033] In the above embodiment, the reflection microstructures 1203a1 on the second surface 1203 can cover the entire second surface 1203. Specifically, it can be understood that each reflection region 1203a can be covered with reflection microstructures 1203a1.

[0034] In another alternative embodiment, a plurality of reflection microstructures 1203a1 are arranged on the second surface 1203 to form an annular region 1203b. In the first direction, the orthographic projection contour of the annular light-emitting region 1101 is located within the annular region 1203b. At this time, the reflection microstructures 1203a1 do not cover the entire second surface 1203. It can also be understood that reflection microstructures 1203a1 are provided in the region of the second surface 1203 opposite to the annular light-emitting region 1101. That is, each reflection region 1203a is not covered with reflection microstructures 1203a1, and reflection microstructures 1203a1 are only arranged at the positions of each reflection region 1203a opposite to the annular light-emitting region 1101.

[0035] In this solution, since the light-emitting area of the lamp cover 110 is annular, a plurality of reflection microstructures 1203a1 also form an annular structure, and the annular structure is opposite to the annular light-emitting area. Therefore, it is avoided to arrange the reflection microstructures 1203a1 in the area on the second surface 1203 opposite to the non-light-emitting area of the lamp cover 110, thereby reducing the processing difficulty and processing cost of the light guide member 120.

[0036] Optionally, each reflection microstructure 1203a1 does not cover the entire reflection area 1203a. The reflection microstructures 1203a1 arranged on each reflection area 1203a form at least one strip area, and a plurality of strip areas are spliced to form the above-mentioned annular area 1203b.

[0037] In an alternative embodiment, a textured surface 1102 may be provided on the side of the annular light-emitting area 1101 facing the light guide member 120. The textured surface 1102 may include a plurality of annular teeth 1102a, and the plurality of annular teeth 1102a may be continuously arranged along the direction from the inner edge to the outer edge of the annular light-emitting area 1101. In this solution, external light can irradiate onto the textured surface 1102, thereby illuminating the textured surface 1102. Therefore, the textured surface 1102 can be clearly observed in appearance. The textured surface 1102 can improve the overall appearance texture of the light-emitting component 100, so that the overall appearance effect of the light-emitting component 100 is more three-dimensional and diverse, thus being beneficial to improving the appearance effect.

[0038] In an alternative solution, as Figure 14 shown, the annular tooth 1102a may include a first side wall 1102a1, a second side wall 1102a2, and a bottom wall 1102a3. The first side wall 1102a1 and the second side wall 1102a2 may be respectively located on two opposite sides of the bottom wall 1102a3, the first side wall 1102a1 and the second side wall 1102a2 may be oppositely arranged, and the bottom wall 1102a3 is oppositely arranged with the first surface 1201. The included angle between the first side wall 1102a1 and the bottom wall 1102a3 may be a first included angle, and the included angle between the second side wall 1102a2 and the bottom wall 1102a3 may be a second included angle. Among them, both the first included angle and the second included angle may be obtuse angles. At this time, the first side wall 1102a1, the bottom wall 1102a3, and the second side wall 1102a2 form a trapezoidal structure, and the bottom wall 1102a3 may be the upper base of the trapezoidal structure, and the first side wall 1102a1 and the second side wall 1102a2 may be the waists of the trapezoidal structure.

[0039] In this solution, the annular tooth 1102a is a trapezoidal structure, and the trapezoidal structure can both achieve a tooth-shaped texture structure. At the same time, the tooth top width of the trapezoidal structure is relatively large, and it can also ensure the optical performance of the annular light-emitting area 1101 as much as possible. Therefore, on the basis of improving the appearance effect, the optical performance of the light-emitting component 100 is also ensured.

[0040] Furthermore, the first angle and the second angle may be equal. In this solution, the annular teeth 1102a are isosceles trapezoidal structures, and the two waists of the trapezoidal structure are equal, so the two sides of each annular tooth 1102a have the same refraction angle for light, thereby further ensuring the optical performance of the annular light emitting area 1101.

[0041] In an optional solution, the width of the first side wall 1102a1 may be L1, such as Figure 14 As shown. L1 can be 0.0859 mm. The width of the first side wall 1102a1 and the width of the second side wall 1102a2 can be the same. The width of the bottom wall 1102a3 can be L2, as shown. Figure 14 As shown. L2 can be 0.0714 mm. The first angle can be 110°. The first angle and the second angle can be the same. The first angle is as shown. Figure 14 As shown in a.

[0042] Of course, L1, L2 and the first angle are not limited to the above values, and can also be other values, which are not limited in this article.

[0043] In another optional solution, the light guide 120 has a light input portion 121 and a light output portion 122. The light input portion 121 may have the aforementioned light input surface 1202, and the light output portion 122 may be located on the side of the light input portion 121 facing away from the light input surface 1202. The reflective microstructure 1203a1 may be provided on the light output portion 122. In this case, the surface of the side of the light input portion 121 facing away from the lampshade 110 and the surface of the side of the light output portion 122 facing away from the lampshade 110 form the aforementioned second surface 1203, and the reflective microstructure 1203a1 is provided on the surface of the light output portion 122 facing away from the lampshade 110. In the first direction, the contour shape of the orthographic projection of the light output portion 122 may be a square-circular structure, and the light input portion 121 may be opposite to one of the rounded corners of the square-circular structure. The square-circular structure here can be understood as a contour structure formed by alternating straight edges and curved edges. It can also be understood that the sides 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 a rounded corner. The width of the light incident portion 121 gradually decreases as it extends toward the light source 130 .

[0044] In this solution, the light-emitting part 122 has a square-round structure, so that the light-emitting part 122 has a large light-guiding area, thus having good light mixing and light-guiding performance. In addition, the square-round structure has a large area, which is also convenient for realizing large-ring light emission of the light-emitting component 100. In addition, the width of the light-incident part 121 gradually decreases along the direction extending towards the light-emitting light source 130. At this time, the size of the light-incident part 121 is small, which is beneficial to reducing the area of the light guide 120, making the structure of the light-emitting component more compact, and thus beneficial to reducing the occupation of the installation space of the light-emitting component 100 for the electronic device.

[0045] Furthermore, a strip-shaped protrusion 140 can be provided on the side of the lamp cover 110 facing the light guide 120. The strip-shaped protrusion 140 extends along the circumferential direction of the lamp cover 110 to enclose a positioning space 141, and a notch 142 is formed between the opposite ends of the strip-shaped protrusion 140. The light-emitting part 122 can be located in the positioning space 141. At least part of the light-incident part 121 can extend out of the positioning space 141 through the notch 142. In this solution, the light-emitting part 122 can be located in the positioning space 141, and the positioning space 141 can position the installation position of the light-emitting part 122, which is beneficial to improving the assembly accuracy of the lamp cover 110 and the light guide 120. In addition, at least part of the light-incident part 121 can extend out of the positioning space 141 through the notch 142, so that the light-incident part 121 can protrude from the edge of the lamp cover 110, thereby increasing the distance between the light-incident surface 1202 and the lamp cover 110, and further avoiding the risk of interference between the lamp cover 110 and the light-emitting light source 130.

[0046] In another alternative solution, the light-emitting component 100 may further include a first reflective film 150, and the first reflective film 150 may be located on the side of the light-incident part 121 facing the lamp cover 110. The first reflective film 150 here can be attached to the surface of the side of the light-incident part 121 facing the lamp cover 110. The side of the first reflective film 150 facing the light-incident part 121 may have a first reflective surface. In this solution, the first reflective film 150 can reflect the light emitted from the surface of the side of the light-incident part 121 facing the lamp cover 110 back into the light guide 120, thereby improving the utilization efficiency of the light and effectively enhancing the energy efficiency of the light-emitting component 100.

[0047] Optionally, the material of the first reflective film 150 can be PET (polyethylene terephthalate), the surface color can be white, and the reflectivity ≥ 80%. Of course, the first reflective film 150 can also be made of other materials, and this is not limited in this article.

[0048] Furthermore, the light-emitting component 100 may further include a light-shielding film 160, which may be disposed on the side of the first reflective film 150 facing away from the light-incident portion 121. The light-shielding film 160 is disposed at the light-incident position end of the light guide member 120, which can effectively reduce the bright spots at this position, thereby further improving the optical performance of the light-emitting component 100.

[0049] Optionally, the light-shielding film 160 may be made of materials such as black ink or black PET. Of course, the light-shielding film 160 may also be made of other materials, which are not limited in this article.

[0050] In an alternative embodiment, the light-incident surface 1202 may be an arc convex surface. At this time, the first surface 1201 or the second surface 1203 has a first edge line on the side facing the light-incident surface 1202. The light guide member 120 has a first curve intersecting the first edge line. The light-incident surface 1202 may be formed by translating the first curve along the first edge line. From the forming method of the light-incident surface 1202, it can be seen that the light-incident surface 1202 is an arc convex surface formed by a moving curve parallel to a fixed straight line. The moving curve is the generatrix, and the fixed straight line is the directrix. Therefore, the first curve in the above text is the generatrix, and the first edge line is the directrix. Therefore, the light-incident surface 1202 is formed by sweeping the first curve along the first edge translation. The first edge line here can also be understood as the intersection line of the first surface 1201 or the second surface 1203 and the light-incident surface 1202. The first curve here can determine the surface profile of the light-incident surface 1202. Of course, the first edge line can also be used to control the length of the light-incident surface 1202.

[0051] In another alternative embodiment, the light-incident surface 1202 may be two spliced inclined planes. The inclination angle of the inclined plane can be specifically set according to the actual working conditions, which are not limited in this article.

[0052] In another alternative embodiment, the light-incident surface 1202 may include a first light distribution surface 1202a and a second light distribution surface 1202b connected in a first direction. The surface profiles of the first light distribution surface 1202a and the second light distribution surface 1202b are different. In this solution, the light-incident surface 1202 has two different light distribution surface profiles, so that zonal light distribution can be realized. Therefore, it can have a better light distribution effect on the light rays at different angles of the light-emitting light source 130, which is beneficial to further improving the light-emitting uniformity and light mixing performance of the light-emitting component 100.

[0053] In a specific solution, the curvature of the first light distribution surface 1202a can be greater than that of the second light distribution surface 1202b. In this solution, due to the larger curvature of the first light distribution surface 1202a, the first light distribution surface 1202a can have a better control effect on the large-angle light rays of the light-emitting light source 130. And the curvature of the second light distribution surface 1202b is smaller, so the second light distribution surface 1202b can have a better control effect on the small-angle light rays of the light-emitting light source 130. Therefore, the light incident surface 1202 combines surface types with different curvatures, so that it can not only improve the control effect on the large-angle light rays of the light-emitting light source 130, but also improve the control effect on some small-angle light rays of the light-emitting light source 130, which is conducive to further improving the optical performance of the light-emitting component 100.

[0054] In the above solution, the curvature of the first light distribution surface 1202a is large, so the first light distribution surface 1202a can control the light rays with large angles. The curvature of the second light distribution surface 1202b is small, so the second light distribution surface 1202b can control the light rays with small angles. Therefore, the distance between the first light distribution surface 1202a and the center of the light-emitting light source 130 is greater than the distance between the second light distribution surface 1202b and the center of the light-emitting light source 130. Therefore, more large-angle light rays of the light-emitting light source 130 can enter the first light distribution surface 1202a, and more small-angle light rays of the light-emitting light source 130 can enter the second light distribution surface 1202b. The center of the light-emitting light source 130 here can be understood as the physical center point of the light-emitting surface of the light-emitting light source 130, or the intersection point of the light-emitting surface and the central optical axis.

[0055] In a specific solution, the first light distribution surface 1202a can be an arc surface, and the second light distribution surface 1202b can be a plane. At this time, the curvature of the plane can be 0.

[0056] In an alternative solution, the light guide member 120 has an intersecting second curve and third curve, and the second curve and the third curve can be translated along the first edge line to form the light incident surface 1202. The second curve forms the above-mentioned first light distribution surface 1202a, and the third curve forms the above-mentioned second light distribution surface 1202b.

[0057] In an alternative solution, both the second curve and the third curve can be spline curves, and the parameters of the second curve and the third curve are shown in Table 1 below.

[0058] Table 1

[0059] The stretching length in Table 1 above can be understood as the length of the first edge line. The data parameters in Table 1 above determine the second curve and the third curve. Of course, parameters such as the minimum curvature, maximum curvature, and curve length of the second curve and the third curve are not limited to the data in Table 1. In addition, the stretching length is not limited to the values in Table 1. The data parameters in Table 1 can also fluctuate between plus and minus ten percent.

[0060] Of course, the first curve, the second curve, and the third curve described above in this application are not limited to spline curves and can also be Bezier curves. This is not restricted in this article.

[0061] In another alternative solution, the light-emitting component 100 may further include a second reflective film 170. The second reflective film 170 may be located on the side where the second surface 1203 of the light guide 120 is located. The second reflective film 170 may cover the second surface 1203. The side of the second reflective film 170 facing the second surface 1203 may have a second reflective surface. In this solution, the second reflective film 170 can reflect the light emitted from the second surface 1203 back into the light guide 120, thereby further improving the utilization efficiency of the light and effectively enhancing the energy efficiency of the light-emitting component 100.

[0062] In one solution, the light-emitting component 100 may further include a diffusion film 180. The diffusion film 180 may be located between the lamp cover 110 and the light guide 120 and cover the annular light-emitting area 1101. In this solution, the diffusion film 180 can scatter the light emitted from the annular light-emitting surface, making the light emitted by the light-emitting component 100 softer. At the same time, it can also increase the light-emitting field angle of the light-emitting component 100.

[0063] In an alternative embodiment, the lamp cover 110 may include a base portion 111, a light-transmitting ring 112, and a positioning protrusion 113. In the first direction, the contour shape of the orthographic projection of the light-transmitting ring 112 may be a square-round ring structure. Here, the square-round ring structure may be formed by splicing straight segments and arc segments connected alternately end to end. Alternatively, the sides of the light-transmitting ring 112 are strip-shaped straight edges, and the corners are rounded. The light-transmitting ring 112 being a square-round ring structure can achieve a larger light ring, which is beneficial to increasing the size of the light ring.

[0064] The base part 111 may include a first region 1111, a second region 1112, and a third region 1113. The second region 1112 may be disposed around the first region 1111. The third region 1113 may be disposed around the second region 1112, and the positioning protrusion 113 may be provided on the outer peripheral surface of the third region 1113. Here, it can also be understood that the positioning protrusion 113 is located on the side of the third region 1113 facing away from the second region 1112. A light-transmitting ring 112 is provided on the side of the second region 1112 facing away from the light guide member 120, and the second region 1112 and the light-transmitting ring 112 may form an annular light-emitting area 1101.

[0065] In this solution, when the positioning protrusion 113 facilitates the assembly of the lamp cover 110 and the device body of the electronic device, it can position the lamp cover 110, thereby improving the installation accuracy of the lamp cover 110. In addition, the third region 1113 can be used to support and fix the lamp cover 110. For example, the third region 1113 can be carried or abutted against the housing of the electronic device, so as to facilitate the reliable installation of the lamp cover 110 and the housing, and thus is conducive to improving the reliability of the assembly.

[0066] When the above-mentioned strip protrusion 140 is provided on the lamp cover 110, the strip protrusion 140 can be provided on the side of the third region 1113 facing the lamp cover 110.

[0067] Furthermore, the light-emitting component 100 may further include a decorative sheet 190. The decorative sheet 190 may be attached to the first region 1111, and the light-transmitting ring 112 may be disposed around the decorative sheet 190. In this solution, the decorative sheet 190 can cover the first region 1111, thereby preventing the first region 1111 from being exposed, and at the same time can also block the first region 1111 to prevent the light emitted from the light guide member 120 from emitting from the first region 1111. In addition, the decorative sheet 190 is disposed in the first region 1111, which can further improve the appearance performance of the light-emitting component 100.

[0068] Optionally, the lamp cover 110 can be made of materials such as transparent glass and transparent resin. The third region 1113 of the base part 111 can be adhered to the housing or decorative cover of the electronic device through an adhesive structure such as double-sided tape and glue.

[0069] In the above solution, a through hole may be provided in the first region 1111 of the lamp cover 110. When disassembling the decorative sheet 190, the decorative sheet 190 can be ejected through the through hole, so as to facilitate the disassembly of the decorative sheet 190.

[0070] The light-emitting component 100 in the embodiments of the present application can be used as a fill light, and of course, it can also be used as a breathing light. The light-emitting component 100 disclosed in the present application has a small thickness, and the convex structure and the reflective microstructure 1203a1 can effectively improve the problems of uneven light emission, poor energy efficiency, and poor color mixing effect caused by the eccentricity of the light-emitting source 130. Therefore, when the light-emitting component 100 is lit, a light ring with uniform, soft, and uniform color mixing can be formed.

[0071] Based on the light-emitting component 100 disclosed in the embodiments of the present application, the embodiments of the present application also disclose an electronic device, and the disclosed electronic device includes the light-emitting component 100 described in any of the above embodiments.

[0072] The electronic device disclosed in the present application may further include a device body and a circuit board 200. The device body includes, but is not limited to, components such as a housing and a display screen. Both the circuit board 200 and the light-emitting component 100 can be disposed on the device body, and the light-emitting source 130 of the light-emitting component 100 can be electrically connected to the circuit board 200.

[0073] In one solution, the lamp cover 110 can be attached to the housing of the device body, and the light-emitting source 130 can be disposed on the circuit board 200. Here, the circuit board 200 can be the main board of the electronic device or the secondary board of the electronic device. The circuit board 200 can supply power to the light-emitting source 130 and control the turning on and off of the light-emitting source 130 at the same time.

[0074] In another alternative solution, the device body may include a housing and a decorative member 300, and the decorative member 300 can be disposed on the housing. Here, the decorative member 300 is used to cover the camera module installed inside the housing. The decorative member 300 can be provided with an installation hole 310 and a light-transmitting hole. Here, the light-transmitting hole is arranged in parallel with the installation hole 310, and the light-transmitting hole is disposed opposite to the lens of the camera module. The lamp cover 110 can be installed in the installation hole 310.

[0075] In this solution, the light-emitting component 100 can be integrated on the decorative member 300, so as to separate the light-emitting component 100 from the inside of the housing, thereby avoiding the occupation of the housing by the light-emitting component 100, and thus optimizing the layout structure of the electronic device.

[0076] Specifically, the third region 1113 of the lamp cover 110 can be pasted to the surface of the decorative member 300 facing the inside of the housing through an adhesive structure such as double-sided tape or glue.

[0077] The electronic device disclosed in the embodiments of the present application can be a device such as a smart phone, a tablet computer, an e-book reader, a wearable device (such as a smart watch), an electronic game console, etc. The embodiments of the present application do not limit the specific type of the electronic device.

[0078] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A light-emitting component, characterized in that, include: A lampshade having an annular light-emitting area; A light guide member, the light guide member having a first surface, a second surface, and a light incident surface, the light incident surface being located on a side adjacent to the first surface and the second surface, the first surface and the second surface being located on opposite sides of the light guide member, the light incident surface being a convex structure, and the second surface being provided with a plurality of reflective microstructures arranged at intervals; the lampshade overlapping the light guide member, the first surface being located on a side of the light guide member facing the lampshade; in a first direction, the orthographic projection outline of the annular light emitting area being located within the first surface; wherein the first direction is the overlapping direction of the lampshade and the light guide member; A luminous light source, the luminous light source is located on the side of the light guide where the light incident surface is located, and the luminous surface of the luminous light source faces the light incident surface; wherein the light emitted by the luminous light source passes through the light incident surface, the second surface and the first surface and then is emitted from the annular light output area.

2. The light-emitting component according to claim 1, wherein The second surface includes a plurality of reflective regions, wherein two adjacent reflective regions are respectively a first reflective region and a second reflective region, wherein the distance between the first reflective region and the light source is smaller than the distance between the second reflective region and the light source; and a plurality of reflective microstructures are arranged at intervals on each of the first reflective region and the second reflective region; Wherein, the distribution density of the reflective microstructures on the first reflective area is less than the distribution density of the reflective microstructures on the second reflective area; and / or, the size of the reflective microstructures on the first reflective area is greater than the size of the reflective microstructures on the second reflective area.

3. The light-emitting component according to claim 2, wherein The reflective microstructure is formed by grooves on the second surface.

4. The light-emitting component according to claim 1, wherein The plurality of reflective microstructures are arranged on the second surface to form an annular area. In the first direction, the orthographic projection outline of the annular light emitting area is located within the annular area.

5. The light-emitting component according to claim 1, wherein A textured surface is provided on a side of the annular light emitting area facing the light guide member. The textured surface includes a plurality of annular teeth, and the plurality of annular teeth are continuously arranged from the inner edge to the outer edge of the annular light emitting area.

6. The light-emitting component according to claim 2 or 4, characterized in that, The light guide has 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 reflective microstructure is provided on the light output portion; in the first direction, the contour shape of the positive projection of the light output portion is a square circular structure, the light input portion is opposite to one of the rounded corners of the square circular structure, and the width of the light input portion gradually decreases as it extends in the direction toward the light source.

7. The light-emitting component according to claim 6, characterized in that, The lampshade is provided with a strip-shaped protrusion on the side facing the light guide, and the strip-shaped protrusion extends along the circumference of the lampshade to enclose a positioning space, and a notch is formed between the two opposite ends of the strip-shaped protrusion; the light output portion is located in the positioning space, and at least part of the light input portion extends out of the positioning space through the notch.

8. The light-emitting component according to claim 7, wherein, The light-emitting component also includes a first reflective film and a shading film. The first reflective film is located on the side of the light incident portion facing the lampshade. The side of the first reflective film facing the light incident portion has a first reflective surface. The shading film is provided on the side of the first reflective film away from the light incident portion.

9. The light-emitting component according to claim 1, characterized in that, The light incident surface includes a first light distribution surface and a second light distribution surface connected along the first direction, and the first light distribution surface and the second light distribution surface have different surface shapes.

10. The light-emitting component according to claim 9, characterized in that, The curvature of the first light distribution surface is greater than the curvature of the second light distribution surface.

11. The light-emitting component according to claim 1, wherein, The light-emitting component further includes a second reflective film and a diffusion film, wherein the second reflective film is located on the side of the light guide where the second surface is located, the second reflective film covers the second surface, and the second reflective film has a second reflective surface on a side facing the second surface; The diffusion film is located between the lampshade and the light guide component and covers the annular light emitting area.

12. The light-emitting component according to claim 1, wherein The lampshade includes a base, a light-transmitting ring, and a positioning protrusion. In the first direction, the outline of the orthographic projection of the light-transmitting ring is a square-circular ring structure. The base includes a first area, a second area, and a third area. The second area is arranged around the first area, and the third area is arranged around the second area. The positioning protrusion is provided on the outer circumference of the third area. The light-transmitting ring is provided on a side of the second area facing away from the light guide member. The second area and the light-transmitting ring form the annular light-emitting area. The light-emitting component further includes a decorative sheet, which is attached to the first area, and the light-transmitting ring is disposed around the decorative sheet.

13. 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 12, 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.

14. The electronic device according to claim 13, wherein The device body includes a shell and a decorative piece. The decorative piece is arranged on the shell. The decorative piece is provided with a mounting hole, and the lampshade is mounted in the mounting hole.

Images