Side-in LED light guide plate light source uniformity structure

Abstract

The utility model relates to LED light guide plate technical field especially side -type LED light guide plate light source uniformity structure, the utility model provides such side -type LED light guide plate light source uniformity structure, including LED lamp board, sliding block, light guide plate, connecting piece and fender etc.

Description

Technical Field

[0001] This utility model relates to the field of LED light guide plate technology, and in particular to the light source uniformity structure of a side-lit LED light guide plate. Background Technology

[0002] With the continuous development of display technology, edge-lit LED backlight modules are widely used in LCD monitors, flat-panel TVs, automotive screens, and commercial display equipment due to their advantages such as thinness, high brightness, and low power consumption. As the core optical component of the backlight module, the light guide plate's main function is to transform the light emitted from the LED point light source into a uniform surface light source through its internal light guide point design, ensuring consistent brightness and eliminating dark areas in the displayed image. Traditional light guide plates mostly use optical-grade acrylic as the substrate, manufactured using precision injection molding and surface treatment processes. Together with reflective sheets, diffusion films, and other components, they form a complete backlight system, meeting the demands for high-definition and high-uniformity displays.

[0003] However, existing technologies commonly use adhesive bonding to fix the light guide plate to the LED light panel or metal frame, which has revealed numerous problems during long-term use. Especially in environments with high temperature, high humidity, or frequent vibration (such as automotive display systems), the adhesive is prone to aging, creep, or delamination, leading to loosening and displacement of the light guide plate. This, in turn, causes optical defects such as bright spots at the screen edges, light leakage, and uneven brightness, severely impacting display quality and product lifespan. Furthermore, the bonding process generates volatile organic compounds (VOCs), which do not comply with current green manufacturing and environmental regulations. Once bonded, the adhesive is difficult to disassemble and repair, hindering sustainable product maintenance and recycling.

[0004] To address the aforementioned issues, there is an urgent need for a detachable side-lit LED light guide plate structure that improves light source uniformity. Utility Model Content

[0005] In order to overcome the shortcomings of existing devices that mostly use adhesive bonding processes, which easily lead to the light guide plate delaminating under high temperature and vibration, causing optical defects and making it impossible to disassemble and repair, this utility model provides a side-entry LED light guide plate light source uniformity structure.

[0006] The technical solution of this utility model is as follows: This utility model provides a side-entry LED light guide plate light source uniformity structure, including an LED light plate, sliders, a light guide plate, a connector and a stop. Sliders are symmetrically and slidably arranged inside the LED light plate, and a light guide plate is connected to the sliders. A connector is arranged on one side of the LED light plate, and a stop is rotatably installed on the connector.

[0007] Preferably, it also includes a locking block and a reflector. The locking block has symmetrically opened locking slots, and the locking block is movably installed on the locking slot. The locking block is connected to the reflector.

[0008] Preferably, it also includes cylindrical light channels, with cylindrical light channels symmetrically installed on the LED light panel.

[0009] Preferably, it also includes fixing blocks, with fixing blocks symmetrically installed on both sides of the LED light panel, and the fixing blocks are all in close contact with the cylindrical light channel.

[0010] Preferably, the LED light panel is provided with a plurality of mounting posts.

[0011] Preferably, the light guide plate adopts a honeycomb structure design.

[0012] Preferably, the slot has a T-shaped structure.

[0013] The beneficial effects of this utility model are:

[0014] This invention achieves rapid installation and mechanical positioning of the light guide plate through a sliding block combined with a rotating stop, resulting in quick disassembly and installation.

[0015] This invention achieves rapid fixation of the reflector by sliding the card block along the T-shaped slot. Combined with the reflector's ability to concentrate large-angle light and the honeycomb structure inside the light guide plate, it improves light energy utilization, enhances light emission uniformity, and increases structural strength and impact resistance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the LED light panel, slider, and light guide plate of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the slider, fixing block, and cylindrical optical channel components of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the LED light panel, connector, and stop block of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the stop block, the locking block, and the reflector of this utility model.

[0021] The markings in the attached diagram are: 1-LED light panel, 2-slider, 3-light guide plate, 4-connector, 5-block, 6-slot, 7-block, 8-reflector, 9-fixing block, 10-cylindrical light channel. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1: Uniformity structure of side-lit LED light guide plate, such as Figure 1 , Figure 2 and Figure 4 As shown, the assembly includes an LED light panel 1, sliders 2, a light guide plate 3, connectors 4, and stops 5. Sliders 2 are slidably mounted on both the upper and lower sides of the LED light panel 1. Two pairs of mounting posts (four in total) are also provided on the upper and lower sides of the LED light panel 1, each pair being symmetrically distributed. These posts are used to achieve a stable connection with external structures (such as back panels or shells) and improve the mechanical stability of the overall assembly. The two sliders 2 are connected to the light guide plate 3. The light guide plate 3 is made of high-optical-grade acrylic material and has an integrated honeycomb reinforcement structure through precision injection molding. This honeycomb structure not only significantly improves the compressive strength and impact resistance of the light guide plate, effectively preventing deformation or breakage caused by external forces during transportation, installation, or use, but also has the advantage of lightweight design, helping to reduce the overall weight of the module and meet the needs of thin and light display devices. Connectors 4 are installed on the right side of the LED light panel 1, and stops 5 are rotatably mounted on connectors 4.

[0024] When the light guide plate 3 needs to be installed, the operator can use the sliders 2 on both sides of the light guide plate 3 to smoothly slide it into the predetermined position along the guide rail structure inside the LED light plate 1. After installation, the stop block 5 can be rotated along the connector 4 to completely cover the entrance end of the light guide plate 3, forming an effective limit to prevent the light guide plate 3 from accidentally coming off due to vibration or external force during use. The body of the light guide plate 3 is precision manufactured by injection molding process, and the internal honeycomb reinforcement structure effectively improves the mechanical strength and impact resistance of the light guide plate 3, preventing deformation or breakage caused by external force during transportation or use. It also has the advantage of being lightweight, reducing the weight of the whole machine.

[0025] Example 2: Based on Example 1, such as Figure 3 and Figure 5 As shown, it also includes a locking block 7, a reflector 8, a fixing block 9, and a cylindrical light channel 10. Two T-shaped slots 6 are symmetrically opened on the blocking block 5, and the locking block 7 is movably installed on both slots 6. This design not only provides a stable connection base, but also facilitates the quick installation and removal of the locking block 7. The two locking blocks 7 together support and fix the reflector 8. The reflector 8 can be flexibly adjusted in position through this installation method, and ensures that it can effectively refract large-angle light into small-angle light when facing incident light at different angles, reducing total internal reflection loss, thereby improving the overall light energy utilization rate and light output uniformity. Fixing blocks 9 are set on the upper, lower, left and right sides of the LED light panel 1. A cylindrical light channel 10 is set between the two fixing blocks 9 on the same side. Its interior is coated with a high-reflectivity optical coating, which can efficiently collect and guide the surrounding ambient light to the built-in light sensor.

[0026] When it is necessary to install or replace the reflector 8, the card block 7 can be slid into the slot 6 of the T-shaped structure to achieve quick and stable assembly of the reflector 8. The card block 7 and the reflector 8 are connected as a whole. With the limiting structure of the T-shaped slot 6, it is ensured that there will be no lateral displacement or falling off during the installation process. The connection is firm and easy to install and disassemble, which greatly improves the modular assembly efficiency and the convenience of later maintenance. The reflector 8 can effectively reflect and refract the large-angle incident light emitted from the LED light source into light with a smaller angle, making it easier to meet the critical angle condition of total internal reflection of the light guide plate 3, significantly reducing the leakage and loss of light during transmission, improving the light energy utilization rate and light output uniformity, thereby optimizing the overall lighting or display effect.

[0027] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A side-lit LED light guide plate light source uniformity structure, comprising an LED light board (1), characterized in that, It also includes a slider (2), a light guide plate (3), a connector (4) and a stop (5). The slider (2) is symmetrically and slidably arranged inside the LED light panel (1). The light guide plate (3) is connected to the slider (2). The connector (4) is arranged on one side of the LED light panel (1). The stop (5) is rotatably installed on the connector (4).

2. The side-lit LED light guide plate light source uniformity structure according to claim 1, characterized in that, It also includes a locking block (7) and a reflector (8). The blocking block (5) has symmetrically opened slots (6), and the locking block (7) is movably installed on the slots (6). The reflector (8) is connected to the locking block (7).

3. The side-lit LED light guide plate light source uniformity structure according to claim 2, characterized in that, It also includes a cylindrical light channel (10), and the cylindrical light channel (10) is symmetrically installed on the LED light panel (1).

4. The side-lit LED light guide plate light source uniformity structure according to claim 3, characterized in that, It also includes fixing blocks (9), and fixing blocks (9) are symmetrically installed on both sides of the LED light board (1). The fixing blocks (9) are all in close contact with the cylindrical light channel (10).

5. The side-lit LED light guide plate light source uniformity structure according to claim 4, characterized in that, The LED light panel (1) is provided with several mounting posts.

6. The side-lit LED light guide plate light source uniformity structure according to claim 5, characterized in that, The light guide plate (3) adopts a honeycomb structure design.

7. The side-lit LED light guide plate light source uniformity structure according to claim 6, characterized in that, The slot (6) has a T-shaped structure.

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