Light guide assembly and electronic device

Abstract

The application discloses a light guide assembly and an electronic device. The light guide assembly is used for the electronic device, and comprises a first light guide section, a second light guide section and a third light guide section. The first light guide section, the second light guide section and the third light guide section are sequentially connected. The first light guide section has an incident light side, and the third light guide section has an outgoing light side. In the thickness direction of the light guide assembly, the third light guide section has a height difference with the first light guide section. A reflective film is arranged on the opposite sides of the second light guide section in the thickness direction of the second light guide section. Or the reflective film covers at least the connection between the second light guide section and the first light guide section and the connection between the second light guide section and the third light guide section.

Description

Technical Field

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

[0002] Currently, in electronic devices, camera decorative components include design elements such as light rings. Generally, the light ring structure is set at the bottom of the decorative component. The position of the light ring structure affects the length of the circuit board and the height of the decorative component's protrusion, thus affecting the overall thinness and lightness of the device.

[0003] In related technologies, in order to optimize the length of the circuit board and the height of the bump caused by the decorative parts, some solutions propose to set up a light guide structure for light guiding. Specifically, one end of the light guide structure is located inside the housing of the electronic device and corresponds to the light-emitting element, while the other end of the light guide structure is located outside the cover plate of the electronic device and between the decorative parts, and corresponds to the light-emitting surface. The light-emitting element is attached to the circuit board, thereby misaligning the light-emitting element with the halo of the appearance, which requires a large amount of thickness space, so as not to affect the length of the circuit board and the height of the bump.

[0004] However, in this scheme, due to the height difference between the two ends of the light guide structure, light leakage occurs when light is transmitted through the light guide structure due to the setting of the bending area, which affects the transmission efficiency of the light path and the brightness of the light-emitting surface. Utility Model Content

[0005] This application aims to provide a light guide component and electronic device that solves the problem of light leakage caused by the setting of bending areas when light is transmitted in the light guide structure, which affects the transmission efficiency of the light path and the brightness of the light-emitting surface.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application propose a light guide assembly for use in an electronic device. The light guide assembly includes: a first light guide segment, a second light guide segment, and a third light guide segment, which are connected sequentially. The first light guide segment has an incident light side, and the third light guide segment has an exit light side. Along the thickness direction of the light guide assembly, there is a height difference between the third light guide segment and the first light guide segment. A reflective film is also provided, along the thickness direction of the second light guide segment, with at least a portion of the reflective film disposed on opposite sides of the second light guide segment; or the reflective film at least covers the connection between the second light guide segment and the first light guide segment, as well as the connection between the second light guide segment and the third light guide segment.

[0007] Secondly, embodiments of this application provide an electronic device, including: a light guide component as described in any of the first aspects.

[0008] In the embodiments of this application, the light guide assembly includes a first light guide segment, a second light guide segment, a third light guide segment, and a reflective film. The first light guide segment, the second light guide segment, and the third light guide segment are connected in sequence. The first light guide segment has a light-incident side, and the third light guide segment has a light-emitting side. The first light guide segment and the third light guide segment have a height difference in the thickness direction, which makes the light-incident side and the light-emitting side have a height difference. This improves the layout flexibility between the light-emitting element that emits light on the light-incident side and the lamp ring that emits light on the light-emitting side. It can avoid affecting other components inside the electronic device, thereby ensuring the thin and light design of the electronic device. The reflective film is disposed on both sides of the second light guide segment along its thickness direction to prevent light leakage within the second light guide segment. Alternatively, the reflective film covers at least the connection between the second and first light guide segments, as well as the connection between the second and third light guide segments. Thus, when light is transmitted from the first light guide segment to the second light guide segment, the reflective film can reflect the light, preventing light leakage at the connection between the second and first light guide segments. Similarly, when light is transmitted from the second light guide segment to the third light guide segment, the reflective film can also reflect the light, preventing light leakage at the connection between the second and third light guide segments. This improves the light transmission efficiency, enhances the brightness and uniformity of the light ring of the electronic device, and reduces the energy consumption of the electronic device.

[0009] It is understandable that the two ends of the second light guide segment are connected to the first light guide segment and the third light guide segment respectively, so that the second light guide segment is tilted relative to both the first and second light guide segments.

[0010] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0011] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of an electronic device according to an embodiment of this application; Figure 2 It shows Figure 1 An enlarged structural schematic diagram of point A in the electronic device of the illustrated embodiment; Figure 3 It shows Figure 1 An enlarged structural schematic diagram of point B in the electronic device of the illustrated embodiment; Figure 4 This is a second schematic diagram of the structure of an electronic device according to an embodiment of this application; Figure 5 This is the third schematic diagram of the structure of an electronic device according to an embodiment of this application; Figure 6 It shows Figure 5A partial structural diagram of the electronic device shown in the embodiment; Figure 7 This is the fourth schematic diagram of the structure of an electronic device according to an embodiment of this application; Figure 8 This is the fifth schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0012] Figure label: 1 First light guide section, 10 Light entrance side, 2 Second light guide section, 20 First bending section, 22 Second bending section, 24 Rigid light guide component, 3 Third light guide section, 30 Light exit side, 4 Reflective film, 40 First reflective film, 42 Second reflective film, 5 Light guide film, 6 Injection molded part, 70 Housing, 72 Cover plate, 74 Circuit board, 76 Decorative part, 760 Light exit surface, 78 Light emitting component. Detailed Implementation

[0013] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0014] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0015] In the description of this application, it should be understood that the terms "thickness", "upper", "lower", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0016] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0017] The following is combined Figures 1-8 This application describes a light guide assembly and an electronic device according to embodiments thereof.

[0018] like Figure 1 and Figure 5 As shown, a light guide assembly according to some embodiments of this application is used in an electronic device. The light guide assembly includes: a first light guide segment 1, a second light guide segment 2, and a third light guide segment 3, which are connected in sequence. The first light guide segment 1 has a light-incident side 10, and the third light guide segment 3 has a light-outceasing side 30. Along the thickness direction H1 of the light guide assembly, there is a height difference between the third light guide segment 3 and the first light guide segment 1. A reflective film 4 is provided on opposite sides of the second light guide segment 2 along the thickness direction H2 of the second light guide segment 2. Alternatively, the reflective film 4 may at least cover the connection between the second light guide segment 2 and the first light guide segment 1, as well as the connection between the second light guide segment 2 and the third light guide segment 3.

[0019] In the embodiments of this application, the light guide assembly includes a first light guide segment 1, a second light guide segment 2, a third light guide segment 3, and a reflective film 4. The first light guide segment 1, the second light guide segment 2, and the third light guide segment 3 are connected in sequence. The first light guide segment 1 has a light-incident side 10, and the third light guide segment 3 has a light-emitting side 30. The first light guide segment 1 and the third light guide segment 3 have a height difference in the thickness direction, which makes the light-incident side 10 and the light-emitting side 30 have a height difference. This improves the layout flexibility between the light-emitting element 78 that emits light on the light-incident side 10 and the lamp ring that emits light on the light-emitting side 30, and can avoid affecting other components inside the electronic device, thereby ensuring the thin and light design of the electronic device. The reflective film 4 is disposed on both sides of the second light guide segment 2 along the thickness direction H2 to prevent light leakage within the second light guide segment 2. Alternatively, the reflective film covers at least the connection between the second light guide segment 2 and the first light guide segment 1, as well as the connection between the second light guide segment 2 and the third light guide segment 3. Thus, when light is transmitted from the first light guide segment 1 to the second light guide segment 2, the reflective film 4 can reflect the light, preventing light leakage at the connection between the second light guide segment 2 and the first light guide segment 1. When light is transmitted from the second light guide segment 2 to the third light guide segment 3, the reflective film 4 can also reflect the light, preventing light leakage at the connection between the second light guide segment 2 and the third light guide segment 3. This improves the light transmission efficiency, enhances the brightness and uniformity of the light ring of the electronic device, and reduces the energy consumption of the electronic device.

[0020] In addition, since the reflective film 4 can improve the light leakage phenomenon of the light guide component, it can achieve a larger height difference design between the first light guide segment 1 and the third light guide segment 3, making the stacking of electronic device components more flexible.

[0021] It is understandable that the two ends of the second light guide segment 2 are connected to the first light guide segment 1 and the third light guide segment 3 respectively, so that the second light guide segment 2 is tilted relative to both the first light guide segment 1 and the second light guide segment 2.

[0022] It is understandable that the light guide assembly is used in electronic devices, which include a light-emitting element 78 and a lamp ring. The light-emitting element 78 is arranged opposite to the light-incident side 10, and the light-emitting surface 760 is arranged opposite to the light-emitting side 30. Light enters the first light guide section 1 from the light-emitting element 78 via the light-incident side 10. Then, when entering the second light guide section 2, it is reflected by the reflective film 4, which reflects any light that may leak into the second light guide section 2 and continues to transmit within the second light guide section 2 until it enters the third light guide section 3 from the other end of the second light guide section 2 under the action of the reflective film 4, and then is emitted from the lamp ring.

[0023] Optionally, the thickness direction H1 of the light guide component can be the thickness direction of the electronic device, or the thickness direction of the first light guide segment 1 or the thickness direction of the third light guide segment 3.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to some embodiments of this application, optionally, the two ends of the second light guide segment 2 are respectively provided with a first bending segment 20 and a second bending segment 22. The second light guide segment 2 is connected to the first light guide segment 1 through the first bending segment 20, and the second light guide segment 2 is connected to the third light guide segment 3 through the second bending segment 22. The reflective film 4 includes a first reflective film 40 and a second reflective film 42. The first reflective film 40 is disposed on opposite sides of the first bending segment 20, and the second reflective film 42 is disposed on opposite sides of the second bending segment 22.

[0025] In this embodiment, the two ends of the second light guide segment 2 are respectively provided with a first bending segment 20 and a second bending segment 22. The first bending segment 20 is connected to the first light guide segment 1, and the second bending segment 22 is connected to the second light guide segment 2. This achieves a smooth connection between the first light guide segment 1 and the second light guide segment 2, as well as a smooth connection between the second light guide segment 2 and the third light guide segment 3, when there is a height difference between the first light guide segment 1 and the third light guide segment 3. The reflective film 4 includes a first reflective film 40 and a second reflective film 42. The first reflective film 40 is disposed on opposite sides of the first bending section 20. When light enters the first bending section 20 from the first light guide section 1, it can be reflected by the first reflective film 40 on both sides of the first bending section 20, preventing the light from exiting the second light guide section 2 from the bending area. This means that more light stays in the second light guide section 2, thereby improving the light transmission efficiency. Similarly, the second reflective film 42 is disposed on opposite sides of the second bending section 22. When light enters the third light guide section 3 from the second bending section 22, the light in the bending area will enter the third light guide section 3 under the reflection of the second reflective film 42, preventing the light from exiting the second bending section 22 without entering the third light guide section 3, thereby improving the light transmission efficiency and increasing the brightness of the light ring of the electronic device.

[0026] Optionally, in this embodiment, the second light guide segment 2 is not provided with a reflective film 4. Under the reflection of the first reflective film 40, the light can be transmitted along the connecting segment to the second bending segment 22, and then enter the third light guide segment 3 under the action of the second reflective film 42. Of course, reflective films 4 can also be provided on opposite sides of the second light guide segment 2 to reduce the risk of light leakage.

[0027] in, Figure 2 and Figure 3 The arrows in the diagram indicate the direction of light transmission.

[0028] It is understandable that the first bending segment 20 is the connection point between the second light guide segment 2 and the first light guide segment 1, and the second bending segment 22 is the connection point between the second light guide segment 2 and the third light guide segment 3.

[0029] like Figure 1As shown, according to some embodiments of this application, optionally, the first light guide segment 1, the second light guide segment 2 and the third light guide segment 3 are all light guide films 5.

[0030] In this embodiment, the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3 are all light guide films 5. The light guide film 5 can reliably transmit light and has a thin thickness, which helps to reduce the space occupied inside the electronic device and thus facilitates the lightweight design of the electronic device.

[0031] It is understandable that the first light guide segment 1, the second light guide segment 2, the third light guide segment 3, the first bending segment 20, and the second bending segment 22 are integrated into a light guide film 5.

[0032] like Figure 5 , Figure 6 and Figure 7 As shown, according to some embodiments of this application, the second light guide segment 2 may optionally be a rigid light guide element 24.

[0033] In this embodiment, the second light guide segment 2 is obliquely connected between the first light guide segment 1 and the third light guide segment 3, which makes the second light guide segment 2 susceptible to light leakage after deformation. Therefore, the second light guide segment 2 is set as a rigid light guide 24, so that the second light guide segment 2 has a certain resistance to deformation. Even if no support structure is provided on the outside of the second light guide segment 2, it can ensure that the light is reliably and stably transmitted along the second light guide segment 2, reducing the risk of light leakage.

[0034] like Figure 6 As shown, according to some embodiments of this application, optionally, the reflective film 4 covers the entire surface of the rigid light guide 24 on both sides of the rigid light guide 24.

[0035] In this embodiment, the reflective film 4 covers the entire surface of the rigid light guide 24 on both opposite sides. In this way, when light is transmitted obliquely in the rigid light guide 24 relative to the extension direction of the rigid light guide 24, it can also remain in the rigid light guide 24 under the reflection of the reflective film 4, reducing the probability of light leakage.

[0036] in, Figure 6 The middle arrow indicates the direction of light transmission.

[0037] According to some embodiments of this application, optionally, the opposing two side surfaces of the rigid light guide 24 are planar or at least partially arc-shaped; wherein, the reflective film 4 is disposed on the planar or arc-shaped surface so that light enters the third light guide segment 3 along the extension direction of the third light guide segment 3 under the reflection of the reflective film 4.

[0038] In this embodiment, the opposite two surfaces of the rigid light guide 24 are planar or at least partially arc-shaped. The reflective film 4 is attached to the planar or arc-shaped surface. With the cooperation of the reflective film 4 and the arc-shaped or planar surface, when the light exits the rigid light guide 24, it can enter the third light guide segment 3 along the extension direction of the third light guide segment 3, thereby avoiding light loss when entering the third light guide segment 3.

[0039] Optionally, the extension direction of the third light guide segment 3 is perpendicular to the thickness direction H1 of the third light guide segment 3. Light enters the third light guide segment 3 along the extension direction of the third light guide segment 3, so that the transmission direction of the light in the third light guide segment 3 is the same as the extension direction of the third light guide segment 3.

[0040] Optionally, the direction of light transmission in the first light guide segment 1 is the same as the direction of light transmission in the third light guide segment 3.

[0041] like Figure 6 As shown, according to some embodiments of this application, optionally, the tilt angle α of the rigid light guide 24 relative to the first light guide segment 1 is 45°±5°; the tilt angle of the rigid light guide 24 relative to the third light guide segment 3 is 45°±5°.

[0042] In this embodiment, the rigid light guide 24 has a tilt angle α of 45°±5° relative to the first light guide segment 1 and a tilt angle α of 45°±5° relative to the third light guide segment 3. This ensures that the rigid light guide 24 has approximately a 45° tilt angle relative to both the first and third light guide segments, and consequently, the reflective film 4 has approximately a 45° tilt angle relative to both the first and third light guide segments. Thus, when light enters the rigid light guide 24 from the first light guide segment 1, the tilt angle design of the rigid light guide 24 causes continuous reflection within it. Ultimately, the light exits the rigid light guide 24 in the same direction and enters the third light guide segment 3, reducing light loss.

[0043] Optionally, the angle between the rigid light guide 24 and the direction of light transmission in the first light guide segment 1 is approximately 45°, and the angle between the rigid light guide 24 and the direction of light transmission in the third light guide segment 3 is approximately 45°.

[0044] According to some embodiments of this application, optionally, the first light guide segment 1 and the third light guide segment 3 are both light guide films 5, and the rigid light guide component 24 is an injection molded structural component.

[0045] In this embodiment, both the first light guide segment 1 and the third light guide segment 3 are light guide films 5, which helps to reduce the space occupied inside the electronic device, thereby facilitating the thinner and lighter design of the electronic device. In addition, the injection-molded structural component has good rigidity and extremely low deformation, which can ensure the reliability of light transmission in the injection-molded structural component and reduce the risk of light leakage.

[0046] Alternatively, the rigid light guide 24 can also be optical glass.

[0047] like Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, according to some embodiments of this application, optionally, the light guide assembly further includes: an injection molded part 6, disposed on the light-emitting side 30 of the third light guide segment 3, wherein the third light guide segment 3 is connected to the injection molded part 6 and emits light through the injection molded part 6.

[0048] In this embodiment, the light guide assembly also includes an injection molded part 6, which is disposed on the light-emitting side 30 of the third light guide segment 3, so that the light emitted from the light-emitting side 30 of the third light guide segment 3 enters the injection molded part 6 and is then emitted from the injection molded part 6, thereby shortening the distance between the light-emitting side 30 of the third light guide segment 3 and the light-emitting surface 760 of the electronic device, so as to optimize the depth of the electronic device and improve the light emission effect.

[0049] According to some embodiments of this application, optionally, the injection molded part 6 and the third light guide segment 3 are an integral structure; or the injection molded part 6 and the third light guide segment 3 are bonded together.

[0050] In this embodiment, the injection molded part 6 and the third light guide segment 3 can be injection molded into a single structure to increase the connection reliability between the injection molded part 6 and the third light guide segment 3, thereby improving the propagation efficiency of light between them and reducing the possibility of light leakage. The injection molded part 6 and the third light guide segment 3 can also be bonded together to reduce processing procedures and manufacturing costs.

[0051] According to some embodiments of this application, optionally, the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3 are an integral structure.

[0052] In this embodiment, the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3 are an integral structure, which ensures the connection strength between the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3, thereby ensuring the reliability of light propagation in the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3, reducing the risk of light leakage, and improving the light propagation efficiency.

[0053] Optionally, when the first light guide segment 1 and the third light guide segment 3 are both light guide films 5, and the second light guide segment 2 is a rigid light guide 24, the rigid light guide 24 and the two light guide films 5 at both ends are injection molded into an integral structure.

[0054] like Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, according to some embodiments of this application, an electronic device is also proposed, comprising: a light guide assembly as proposed in any of the above claims; and a housing 70; a cover plate 72, covering one side of the housing 70, the cover plate 72 having a through hole; a circuit board 74, disposed within the housing 70; a decorative member 76, at least a portion of the decorative member 76 being disposed on the side of the cover plate 72 away from the circuit board 74 and opposite to the through hole, a first light guide segment 1 being disposed within the housing 70, a third light guide segment 3 being disposed between the cover plate 72 and the decorative member 76, a second light guide segment 2 passing through the through hole, the decorative member 76 having a light emitting surface 760, the light emitting surface 760 being opposite to the light emitting side 30; and a light emitting member 78, disposed within the housing 70 and electrically connected to the circuit board 74, the light emitting member 78 being opposite to the light incident side 10.

[0055] In this embodiment, the electronic device includes a housing 70, a cover plate 72, a circuit board 74 disposed within the housing 70, a light-emitting element 78 electrically connected to the circuit board 74, and a decorative element 76 disposed on the cover plate 72. A third light guide segment 3 is disposed between the cover plate 72 and the decorative element 76. The light-emitting surface 760 on the decorative element 76 is opposite to the light-emitting side 30 of the third light guide segment 3. A first light guide segment 1 is disposed within the housing 70. The light-emitting element 78 is opposite to the light-incident side 10 of the first light guide segment 1. Light enters through the light-emitting element 78. The light enters the first light guide segment 1, and is then emitted from the light-emitting surface 760 through the transmission of the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3, giving the electronic device a halo effect. At the same time, due to the setting of the light guide component, the light-emitting element 78 and the light-emitting surface 760 can be staggered, so that the setting position of the light-emitting element 78 and the light-emitting surface 760 can be more flexible. It does not require increasing the length of the circuit board 74 or the height of the protrusion of the decorative element 76, thus not occupying the length of the battery compartment and ensuring the battery capacity.

[0056] Understandably, the electronic device also includes a camera, and the decorative part 76 is provided with a mounting hole that is connected to the through hole. The camera is positioned opposite to the through hole and the mounting hole.

[0057] Optionally, a portion of the decorative element 76 is disposed opposite to the through-hole for surrounding the camera, and another portion of the decorative element 76 is located outside the cover plate 72, opposite to the battery compartment of the electronic device.

[0058] Optionally, the light-emitting surface 760 is offset from the circuit board 74.

[0059] Understandably, in related technologies, the light-emitting element may be positioned directly opposite the light-emitting surface, requiring an extension of the circuit board length, which occupies battery compartment space and affects battery capacity. If a flexible circuit board is used to extend the circuit board between the cover plate and the decorative element, and then the light-emitting element is mounted on the flexible circuit board, it directly affects the height of the decorative element's protrusion. This application, by adding a light guide component, allows the light-emitting element 78 to be positioned on the circuit board 74 without extending the length of the circuit board 74, and also eliminates the need to add a flexible circuit board 74 between the cover plate 72 and the decorative element 76, thereby ensuring battery capacity and reducing the protrusion height. Furthermore, the reflective film 4 prevents light leakage from the light guide component, improving light propagation efficiency.

[0060] like Figure 4 and Figure 7 As shown, according to some embodiments of this application, optionally, a portion of the decorative element 76 extends into the housing 70 through a through hole, so that the first light guide segment 1 is connected to the portion of the decorative element 76 extending into the housing 70; the second light guide segment 2 is connected to the decorative element 76.

[0061] In this embodiment, a portion of the decorative element 76 extends out of the housing 70 through a through hole and is connected to the first light guide segment 1. The third light guide segment 3 is connected to the decorative element 76 between the cover and the decorative element 76, so that the first light guide segment 1 and the third light guide segment 3 are connected to the decorative element 76, thereby ensuring the flatness of the first light guide segment 1 and the third light guide segment 3 and ensuring the reliability of light transmission.

[0062] According to some embodiments of this application, optionally, the light guide assembly includes: a light guide film 5 (i.e., a light guide film 5 in which the first light guide segment 1, the second light guide segment 2, and the third light guide segment 3 are integrated), a first reflective film 40, a second reflective film 42, and an injection molded part 6. The light guide film 5 is used to transmit light from the light-emitting element 78 to the light-emitting surface 760. The first reflective film 40 and the second reflective film 42 are used to reflect light at the bending positions of the light guide film 5 to reduce optical loss in the bending area and improve optical transmission efficiency. The purpose of the injection molded part 6 is to reduce the distance between the light-emitting surface 760 and the light guide film 5 to optimize the visible depth.

[0063] Optionally, the light guide film 5 and the injection molded part 6 are injection molded together as one unit. The first reflective film 40 and the second reflective film 42 can be completed using a coating process. The first reflective film 40 and the second reflective film 42 are coated with a single-sided silver plating layer. The injection molded part 6 can be injection molded and combined with the light guide film 5, or the injection molded part 6 and the light guide film 5 can be bonded together with double-sided adhesive.

[0064] When light passes through the bending area of ​​the reflective film 4, because the reflective film 4 is coated on both sides of the corresponding area of ​​the light guide film 5, the light can be reflected instead of being emitted directly. Even when the height difference between the light-emitting element 78 and the light-emitting surface 760 is large, more light is still retained in the light guide film 5 and eventually transmitted to the light ring position, thus improving the transmission efficiency of the light path.

[0065] Optionally, the light guide films 5 at both ends (e.g., the first light guide segment 1 and the third light guide segment 3) are attached to the decorative component 76 using double-sided adhesive. If the reflective film 4 is attached to the decorative component 76, the double-sided adhesive on the reflective film 4 can easily pull it off, causing functional failure and potentially introducing foreign objects into the device. Therefore, the light guide film 5 cannot be completely attached to the decorative component 76 of the camera, resulting in the middle section (e.g., the second light guide segment 2) being unfixed and suspended. In actual assembly, the shape of the suspended middle section varies, leading to a risk of inconsistent halo emission uniformity / brightness. Therefore, this design has certain limitations when the height difference between the light-emitting component 78 and the light-emitting surface 760 is too large.

[0066] Optionally, based on the limitations of the above embodiments, this application also provides a light guide assembly, which includes: a light guide film 5 (i.e., both the first light guide segment 1 and the third light guide segment 3 are light guide films 5), an intermediate light path correction component (e.g., a rigid light guide component 24), and an injection-molded component 6, etc. The light guide film 5 is used to transmit light, transmitting light from the light-emitting element 78 to the light-emitting surface 760. The purpose of the injection-molded component 6 is to reduce the distance between the light-emitting surface 760 and the light guide film 5 to optimize the visible depth. The intermediate light path correction component is injection-molded (it can be a plastic part) and coated with reflective films 4 on both sides to change the transmission direction of the light path, so that the height difference between the light-emitting element 78 and the light-emitting surface 760 can be set to be larger.

[0067] Optionally, the middle optical path correction component is injection molded and coated on both sides, and then injection molded together with the two light guide films 5 (the third light guide section 3 can be injection molded with the injection molded component 6 in advance, or it can be joined together by double-sided adhesive).

[0068] Optionally, the tilt angle of the middle optical path corrector is approximately 45°. Light enters the light guide film 5 from the light-emitting element 78 on the left side and enters the optical path corrector when it reaches the left side of the optical path corrector. Due to the 45° reflective surface setting, the light path can be continuously reflected in the corrector and finally exits the optical path corrector in a horizontal manner. That is, the light enters the light guide film 5 from the left side in a horizontal direction and exits the light guide film 5 from the right side in a horizontal direction, while the light loss rate in the middle is extremely low.

[0069] Optionally, the tilt angle of the optical path corrector is not a fixed value. The direction of the emitted light can be adjusted by adjusting the local curvature of the outer surface of the optical path corrector to ensure that the light can still enter and exit horizontally under different tilt angles.

[0070] In this embodiment, the electronic device is assembled and fixed as follows: the light guide films 5 on the left and right sides (e.g., the first light guide segment 1 and the third light guide segment 3) are fixed to the decorative part 76 with double-sided adhesive. Furthermore, since the planar assembly in the actual design incorporates a positioning structure, the assembly precision of these two light guide films 5 is relatively high. Based on this, the positional precision of the left and right endpoints of the central optical path correction component is high, and since the main body is an injection-molded part 6, i.e., a rigid part, its assembly deformation is negligible. Therefore, the height difference between the light-emitting component 78 and the light-emitting surface 760 can be set larger, making the spatial stacking method of the electronic device more flexible.

[0071] The electronic device proposed in this application achieves a larger height difference design while ensuring optical path transmission efficiency. This allows for more flexible stacking design within this location, improves the brightness and uniformity of the lamp ring, and reduces the driving current of the light-emitting element 78.

[0072] Alternatively, electronic devices include mobile phones, tablets, etc.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A light guide assembly for use in electronic devices, characterized in that, The light guide component includes: A first light guide segment, a second light guide segment, and a third light guide segment are connected in sequence. The first light guide segment has a light-incident side, and the third light guide segment has a light-outceasing side. Along the thickness direction of the light guide assembly, there is a height difference between the third light guide segment and the first light guide segment. A reflective film, along the thickness direction of the second light guide segment, at least a portion of the reflective film is disposed on opposite sides of the second light guide segment; or the reflective film at least covers the connection between the second light guide segment and the first light guide segment, and the connection between the second light guide segment and the third light guide segment.

2. The light guide assembly according to claim 1, characterized in that, The second light guide segment has a first bending segment and a second bending segment at both ends, and the second light guide segment is connected to the first light guide segment through the first bending segment, and the second light guide segment is connected to the third light guide segment through the second bending segment; The reflective film includes a first reflective film and a second reflective film, wherein the first reflective film is disposed on opposite sides of the first bent section, and the second reflective film is disposed on opposite sides of the second bent section.

3. The light guide assembly according to claim 2, characterized in that, The first light guide segment, the second light guide segment, and the third light guide segment are all light guide films.

4. The light guide assembly according to claim 1, characterized in that, The second light guide segment is a rigid light guide.

5. The light guide assembly according to claim 4, characterized in that, The reflective film covers the entire surface of the rigid light guide on both sides.

6. The light guide assembly according to claim 5, characterized in that, The opposite two surfaces of the rigid light guide are planar or at least partially curved. The reflective film is disposed on the plane or the arc surface so that light enters the third light guide segment along the extension direction of the third light guide segment under the reflection of the reflective film.

7. The light guide assembly according to claim 5, characterized in that, The rigid light guide is tilted at an angle of 45° ± 5° relative to the first light guide segment; The rigid light guide is tilted at an angle of 45° ± 5° relative to the third light guide segment.

8. The light guide assembly according to claim 4, characterized in that, Both the first light guide segment and the third light guide segment are light guide films, and the rigid light guide component is an injection-molded structural component.

9. The light guide assembly according to any one of claims 1 to 8, characterized in that, Also includes: An injection molded part is disposed on the light-emitting side of the third light guide section, and the third light guide section is connected to the injection molded part and emits light through the injection molded part.

10. The light guide assembly according to claim 9, characterized in that, The injection-molded part and the third light guide segment are an integral structure; or The injection-molded part is bonded to the third light guide segment.

11. The light guide assembly according to any one of claims 1 to 8, characterized in that, The first light guide segment, the second light guide segment, and the third light guide segment are an integral structure.

12. An electronic device, characterized in that, include: The light guide assembly as described in any one of claims 1 to 11; and case; A cover plate is provided on one side of the housing, and the cover plate is provided with a through hole; The circuit board is disposed within the housing; The decorative component has at least a portion disposed on the side of the cover plate away from the circuit board and opposite to the through hole. The first light guide segment is disposed inside the housing, the third light guide segment is disposed between the cover plate and the decorative component, the second light guide segment passes through the through hole, and the decorative component has a light-emitting surface that is opposite to the light-emitting side. A light-emitting element is disposed inside the housing and electrically connected to the circuit board, and the light-emitting element is disposed opposite to the light-incident side.

13. The electronic device according to claim 12, characterized in that, A portion of the decorative element extends into the housing through the through hole, so that the first light guide segment is connected to the portion of the decorative element that extends into the housing; The second light guide segment is connected to the decorative element.

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