Electronic device LED display assembly based on optical fiber light guide
By using fiber optic light guide design, the problems of inflexible design, EMI/ESD issues, and light leakage in existing LED display components are solved, enabling flexible design, improving reliability and heat dissipation performance, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CHANGJIN COMM TECH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing technology, LED display components have problems such as high cost, inflexible design, EMI/ESD issues, poor assembly compatibility, poor reliability, and heat dissipation problems. Especially in large-scale or customized designs, LED sub-boards or high-transmittance plastic molding materials result in cumbersome designs and light leakage.
The LED display component of the electronic device adopts optical fiber light guide. Through the design of light pickup base, light output base and optical fiber line, the LED lamp is placed inside the motherboard and the light output port is placed between the device shell. By utilizing the flexibility and light transmission characteristics of optical fiber line, it avoids the components and achieves flexible light transmission. Combined with light guide terminal to diffuse the light and avoid light leakage.
It enables flexible design of LED display components, avoids EMI/ESD problems, improves assembly reliability and heat dissipation performance, while maintaining the light indication effect and reducing cost and design complexity.
Smart Images
Figure CN224501442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of indicator light technology for electronic devices, and in particular to an LED display component for electronic devices based on fiber optic light guiding. Background Technology
[0002] Almost all electronic and electrical devices must be equipped with status display functions, and today's mainstream status displays are primarily LED displays. In different designs, there are two methods for using LEDs as display devices to achieve the display effect.
[0003] There are two main types of LED displays: on-board and off-board. Small, portable designs primarily use on-board displays, while larger systems or more customized designs require off-board displays for better human-computer interaction. Examples include LED displays on computer cases and various embedded devices in server racks. These LED displays often use LED daughterboards, where LED drivers are routed from the motherboard to the daughterboard to illuminate the LEDs; or high-transmittance molded plastic materials are used to guide the LED light source from the motherboard to the chassis. Both designs have their drawbacks. Firstly, LED daughterboard designs are less cost-effective and less flexible, and are prone to EMI or ESD issues. During development, engineers must carry the cumbersome LED daughterboard to test motherboard problems. Secondly, molded plastic light guides can lead to cumbersome and inflexible designs, poor assembly fit, and low reliability. Additionally, some LEDs must be placed in the middle of the motherboard for display purposes, affecting heat dissipation, and the increased heat can significantly reduce LED lifespan. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an LED display component for electronic devices based on optical fiber light guiding.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An LED display component for an electronic device based on fiber optic light guiding includes a light-collecting base, a light-emitting base, and an optical fiber. The light-collecting base is disposed inside the electronic device and positioned at the LED lamps. The light-collecting base has a light-collecting cavity relative to each LED lamp. The light-emitting base is disposed inside the electronic device and positioned at the light-emitting port. The light-emitting base has a light-emitting cavity relative to each light-emitting port. Both the light-collecting cavity and the light-emitting cavity are fixedly fitted with light-shielding sleeves. One end of the optical fiber is inserted into the fixed sleeve in the light-collecting cavity through an interference fit and faces the LED lamp. The other end of the optical fiber is inserted into the fixed sleeve in the light-emitting cavity through an interference fit and faces the light-emitting port.
[0007] Preferably, the light-emitting cavity is provided with a light-guiding terminal at the light-emitting port, the diameter of the light-emitting terminal is greater than or equal to the diameter of the light-emitting port, and the light-emitting terminal is connected to the top end of the optical fiber.
[0008] Preferably, the light-emitting terminal and the optical fiber are integrally formed; or, the rear end of the light-emitting terminal is provided with a mating cavity, and the optical fiber is inserted into the mating cavity by interference fit.
[0009] Preferably, the top of the light-emitting terminal corresponds to the size of the light-emitting port, the top of the light-emitting terminal is embedded in the light-emitting port, and the top surface of the light-emitting terminal is flush with the outer surface of the electronic device.
[0010] Preferably, the optical fiber is provided with a light-guiding terminal at the end facing the LED light. The light-guiding terminal is conical, and its bottom surface faces the LED light.
[0011] By adopting the above solution, this utility model, based on the flexibility and light transmission of optical fiber, can realize the light transmission between the LED light placed on the motherboard and the light outlet placed in the device housing. Combined with flexible, bendable components, it can achieve extremely flexible light transmission within the design space. It can even pass through fine holes and avoid obstacles between various movable components, such as buttons, knobs, and slide switches. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the light pickup base according to an embodiment of the present utility model.
[0013] Figure 2 This is a cross-sectional view of the light pickup base according to an embodiment of the present utility model.
[0014] Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0015] Figure 4 This is a schematic diagram of the structure of the light-emitting base according to an embodiment of the present invention.
[0016] Figure 5 This is a cross-sectional view of the light-emitting base according to an embodiment of the present invention.
[0017] Figure 6 This is a utility model Figure 5 Enlarged view of the structure at point B in the middle.
[0018] Figure 7 This is a schematic diagram of the structure in an embodiment of the present invention, showing that the top of the light-emitting terminal is flush with the light-emitting port.
[0019] Figure 8This is a schematic diagram of the structure of the light-emitting terminal and the optical fiber integrally formed according to an embodiment of the present invention. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0023] like Figures 1 to 8As shown in the figure, this embodiment provides an electronic device LED display component based on optical fiber light guide, including a light pickup base 1, a light output base 2, and an optical fiber 3. The light pickup base 1 is disposed inside the electronic device and positioned at the LED lamp 100. The light pickup base 1 is provided with a light pickup cavity 11 at each LED lamp 100. The light output base 2 is disposed inside the electronic device and located at the light output port 101. The light output base 2 is provided with a light output cavity 21 at each light output port 101. Both the light pickup cavity 11 and the light output cavity 21 are fixedly provided with light-shielding fixing sleeves 4. One end of the optical fiber 3 is inserted into the fixing sleeve 4 in the light pickup cavity 11 through an interference fit and faces the LED lamp 100. The other end of the optical fiber 3 is inserted into the fixing sleeve 4 in the light output cavity 21 through an interference fit and faces the light output port 101.
[0024] This embodiment leverages the flexibility and light transmission capabilities of optical fiber to achieve light transmission between the LED light on the motherboard and the light outlet 101 located in the device housing. Combined with flexibility and bendable components, it allows for extremely flexible light transmission within the designed space, even allowing the fiber to pass through small holes and navigate between various movable components such as buttons, knobs, and slide switches. The optical fiber 3 is primarily secured by a fixing sleeve 4, made of flexible rubber or silicone, which should not be translucent. Translucency would allow light from the LED light 100 to leak out, resulting in weak transmitted light. For the interference fit insertion of the optical fiber 3 into the fixing sleeve 4, the aperture of the fixing sleeve 4 is designed to be smaller than the optical fiber. The optical fiber 3 is then inserted into the fixing sleeve 4 while being squeezed in, relying on the elasticity and frictional resistance of the fixing sleeve 4 to achieve a secure mating connection.
[0025] Furthermore, in order to increase the light-emitting area and fill the light-emitting port, the light-emitting cavity 21 in this embodiment is provided with a light-emitting terminal 22 with a light-guiding function at the light-emitting port 101. The diameter of the light-emitting terminal 22 is greater than or equal to the diameter of the light-emitting port 101. The light-emitting terminal 22 is connected to the top end of the optical fiber 3. In this way, the light emitted from the optical fiber 3 can be diffused by the light-emitting terminal 22, so that the light can fill the light-emitting port 101, avoiding the light spot being too small or too concentrated due to the small diameter of the optical fiber 3.
[0026] Furthermore, regarding the connection relationship between the optical fiber 3 and the light-emitting terminal 22 in this embodiment, the light-emitting terminal 22 and the optical fiber 3 can be integrally formed; or, the rear end of the light-emitting terminal 22 is provided with a mating cavity 23, and the optical fiber 3 is inserted into the mating cavity 23 by interference fit.
[0027] Furthermore, to make the light outlet 101 more aesthetically pleasing and to prevent debris from entering the interior, the top end of the light-emitting terminal 22 in this embodiment corresponds to the size of the light outlet 101. The top end of the light-emitting terminal 22 is embedded in the light outlet 101, and the top surface of the light-emitting terminal 22 is flush with the outer surface of the electronic device.
[0028] In addition, for the light pickup point, in order to improve the effective transmission of light, the optical fiber 3 in this embodiment is provided with a light pickup terminal 12 with a light guiding function at the end facing the LED lamp 100. The light pickup terminal 12 is conical, and the bottom surface of the light pickup terminal 12 faces the LED lamp 100. In this way, the light pickup terminal 12 with a large area serves as the light inlet, allowing light to directly enter the optical fiber 3.
[0029] It should be noted that both the light-emitting terminal 22 and the light-collecting terminal 12 are made of light-guiding materials, such as light-guiding PC material. As can be seen from the attached drawing, one end of the light-emitting terminal 22 is exposed to the outside of the fixing sleeve 4. However, this is the light outlet, and the exposed area is small and opposite to the direction of light output. Although there will be light leakage, the light damage is small and will not affect the display brightness of the normal indicator light.
[0030] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An LED display component for an electronic device based on fiber optic light guiding, characterized in that: The device includes a light-collecting base, a light-emitting base, and an optical fiber. The light-collecting base is located inside the electronic device and positioned at the LED lights. Each light-collecting base has a light-collecting cavity relative to each LED light. The light-emitting base is located inside the electronic device and positioned at the light-emitting port. Each light-emitting base has a light-emitting cavity relative to each light-emitting port. Both the light-collecting cavity and the light-emitting cavity are fixedly fitted with light-shielding sleeves. One end of the optical fiber is inserted into the fixed sleeve in the light-collecting cavity via an interference fit and faces the LED light. The other end of the optical fiber is inserted into the fixed sleeve in the light-emitting cavity via an interference fit and faces the light-emitting port.
2. The LED display component for an electronic device based on fiber optic light guiding as described in claim 1, characterized in that: The light-emitting cavity is provided with a light-guiding terminal at the light-emitting port. The diameter of the light-emitting terminal is greater than or equal to the diameter of the light-emitting port, and the light-emitting terminal is connected to the top end of the optical fiber.
3. The LED display component for an electronic device based on fiber optic light guiding as described in claim 2, characterized in that: The light-emitting terminal is integrally formed with the optical fiber; Alternatively, the rear end of the light-emitting terminal is provided with a mating cavity, and the optical fiber is inserted into the mating cavity by interference fit.
4. The LED display component for an electronic device based on fiber optic light guiding as described in claim 3, characterized in that: The top of the light-emitting terminal corresponds to the size of the light-emitting port, the top of the light-emitting terminal is embedded in the light-emitting port, and the top surface of the light-emitting terminal is flush with the outer surface of the electronic device.
5. The LED display component for an electronic device based on fiber optic light guiding as described in claim 1, characterized in that: The optical fiber has a light-guiding terminal at the end facing the LED light. The light-guiding terminal is conical, and its bottom surface faces the LED light.