Backlight module with optimized glue frame structure

Abstract

This utility model discloses a backlight module with an optimized frame structure, belonging to the field of backlight module technology. It includes a frame, a light source, a light guide plate, a lower diffuser, a prism sheet, and an upper diffuser. The frame is injection molded from high-strength plastic, with several rectangular, circular, or irregularly shaped through-holes on its back corresponding to the concentrated heat-generating areas of the light source. The area of ​​the through-holes is larger than the area of ​​the heat-generating areas to efficiently dissipate heat and reduce weight. Reinforcing ribs are provided at the edges of the through-holes to improve deformation resistance. The light source is fixed to the inside of the frame with double-sided adhesive, and its emitting surface is sequentially connected to the light guide plate, lower diffuser, prism sheet, and upper diffuser to ensure uniform light distribution. This design significantly enhances the structural strength of the frame while improving heat dissipation efficiency, reducing production costs, solving the problems of poor heat dissipation in traditional solid frames and easy deformation in hollow frames, and extending the service life of the backlight module.

Description

Technical Field

[0001] This utility model relates to the field of backlight module technology, and in particular to a backlight module with an optimized frame structure. Background Technology

[0002] In traditional backlight modules, the frame usually adopts a solid closed structure, which can provide a certain structural support, but has significant drawbacks: on the one hand, the heat generated by the light source (such as LED light strip) during long-term operation is difficult to dissipate effectively, resulting in excessively high local temperature, accelerating the aging of the light source and optical film, and shortening the service life of the backlight module; on the other hand, the solid frame uses a large amount of material and is heavy, which increases the production cost and the overall weight of the product, and is not conducive to the design of thin and light products.

[0003] To improve heat dissipation, some solutions use a hollow frame structure. However, while this design can reduce weight, it significantly reduces the structural strength of the frame, making it prone to deformation under high temperature or external force. This can lead to problems such as optical film misalignment and light leakage, seriously affecting display quality. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a backlight module with an optimized frame structure.

[0005] This utility model proposes an optimized backlight module with a plastic frame structure, comprising:

[0006] The frame has several through holes on its back.

[0007] The light source is fixed inside the frame, and the positions of several through holes correspond to the heat concentration areas of the light source, and the area of ​​each through hole is larger than the area of ​​the corresponding heat concentration area in the light source.

[0008] Furthermore, the front of the light source is connected in sequence with a light guide plate, a lower diffuser sheet, a prism sheet, and an upper diffuser sheet, and adjacent components are fixed together with double-sided adhesive.

[0009] Furthermore, the shape of the through hole can be any one or more combinations of rectangle, circle, ellipse or irregular shape.

[0010] Furthermore, the distribution density of the through holes is adjusted according to the amount of heat generated in different areas of the light source.

[0011] Furthermore, the material of the frame can be any one of plastic, rubber, or composite material.

[0012] Furthermore, the edges of the through holes are provided with reinforcing ribs.

[0013] Furthermore, the light-incident surface of the light guide plate is adjacent to the light source.

[0014] The beneficial effects of this utility model are as follows: By opening through holes on the back of the frame that precisely correspond to the concentrated heat generation area of ​​the light source, and optimizing the area and shape distribution of the through holes, the heat dissipation efficiency of the backlight module is significantly improved. At the same time, combined with the reinforcing rib structure at the edge of the through holes, the structural strength and deformation resistance of the frame are greatly enhanced while achieving weight reduction and cost reduction. This effectively solves the problems of insufficient heat dissipation of traditional solid frames and easy deformation of hollow frames, ensuring that the backlight module maintains stable performance under high temperature or long-term use, extending the product's service life and improving display quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the rubber frame in this utility model;

[0017] Figure 3 This is a structural schematic diagram of the present invention from the front view after assembly;

[0018] Figure 4 This is a structural schematic diagram of the present invention from the rear view after assembly.

[0019] In the diagram: 1. Adhesive frame; 11. Through hole; 2. Light source; 3. Light guide plate; 4. Lower diffuser sheet; 5. Prism sheet; 6. Upper diffuser sheet. Detailed Implementation

[0020] Reference Figure 1-4 This utility model proposes a backlight module with an optimized frame structure, which consists of a frame 1, a light source 2, a light guide plate 3, a lower diffuser 4, a prism sheet 5, and an upper diffuser 6. The frame 1 is injection molded from high-strength plastic (such as PC or ABS) and has a non-hollow structure. Several rectangular through holes 11 are evenly opened on the back. The position of the through holes 11 corresponds one-to-one with the heat-generating concentrated area of ​​the light source 2 (such as the chip position of the LED light strip), ensuring that the heat is directly dissipated through the through holes 11. The area of ​​each through hole 11 is larger than the area of ​​the corresponding heat-generating area of ​​the light source 2 (for example, the area of ​​the heat-generating area is 5mm², and the area of ​​the through hole is 8mm²) to avoid heat accumulation.

[0021] The edge of the through hole 11 is designed with a reinforcing rib structure. By increasing the local thickness or protrusion design, the deformation resistance of the frame 1 is improved, ensuring structural stability under high temperature or long-term use. The light source 2 is an LED light strip, which is fixed to the bottom inner side of the frame 1 with double-sided adhesive. Its light-emitting surface faces the light-incident surface of the light guide plate 3. The light guide plate 3 is bonded to the front of the light source 2 with double-sided adhesive to ensure uniform light introduction. The lower diffuser 4 is bonded to the light-emitting surface of the light guide plate 3 with double-sided adhesive to diffuse the light and eliminate the dot marks on the light guide plate 3. The prism sheet 5 is bonded to the lower diffuser 4 with double-sided adhesive to converge the light and improve the front brightness of the backlight module. The upper diffuser 6 is bonded to the prism sheet 5 with double-sided adhesive to further uniformize the light and avoid uneven brightness.

[0022] In addition, based on the heat distribution of the light source 2, the shape of some rectangular through holes 11 is adjusted to any one or more combinations of circles, ellipses or irregular shapes, and the distribution density of through holes 11 is adjusted according to the heat generation of different areas of the light source 2 to adapt to the heat dissipation needs of different areas.

[0023] The backlight module has a frame 1 with several through holes 11. Compared with the existing solid closed frame, it can significantly improve the heat dissipation of the backlight module and effectively reduce the weight of the frame, thus reducing the production cost of the backlight module. Compared with the hollow frame, the structural strength can be greatly improved, making the frame less prone to deformation and the structure more stable.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A backlight module with an optimized frame structure, characterized in that, include: The frame (1) has several through holes (11) on its back. The light source (2) is fixed inside the frame (1), and the positions of several through holes (11) correspond to the heat concentration area of ​​the light source (2), and the area of ​​each through hole (11) is larger than the area of ​​the corresponding heat concentration area in the light source (2).

2. The backlight module with optimized frame structure according to claim 1, characterized in that, The front of the light source (2) is connected in sequence with the light guide plate (3), the lower diffuser (4), the prism sheet (5) and the upper diffuser (6), and adjacent components are fixed together by double-sided adhesive.

3. The backlight module with optimized frame structure according to claim 1, characterized in that, The through hole (11) can be any one or more of the following shapes: rectangular, circular, elliptical, or irregular.

4. The backlight module with optimized frame structure according to claim 1, characterized in that, The distribution density of the through holes (11) is adjusted according to the amount of heat generated in different regions of the light source (2).

5. The backlight module with optimized frame structure according to claim 1, characterized in that, The material of the frame (1) is any one of plastic, rubber or composite material.

6. The backlight module with optimized frame structure according to claim 1, characterized in that, The edge of the through hole (11) is provided with a reinforcing rib structure.

7. The backlight module with optimized frame structure according to claim 1, characterized in that, The light-incident surface of the light guide plate (3) is adjacent to the light source (2).

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