LED backlight source device for display screen

Abstract

The utility model relates to the technical field of photoelectrons, and discloses an LED backlight source device for a display screen, which comprises a frame, a built-in groove is arranged in the middle of the inside of the frame, a light filtering assembly is arranged in the built-in groove, limiting mechanisms are mounted on two sides of the frame, and the light filtering assembly is distributed between the limiting mechanisms. According to the technical scheme of the utility model, when the light filtering assembly is installed, the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film and the shading film can be taken out firstly, are sequentially inserted into the limiting mechanism and are uniformly distributed between two adjacent groups of limiting films, and the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film and the shading film are ensured to be flat from top to bottom; the light filtering assembly can be rapidly installed, the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film and the shading film are clamped through the two adjacent sets of limiting films, and the phenomenon that the light filtering assembly is loosened and deviates can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic technology, specifically to an LED backlight device for a display screen. Background Technology

[0002] Currently, in the field of display technology, LED backlights are a key component that plays a crucial role in display effects. The performance of LED backlight devices directly affects key indicators such as brightness, uniformity, contrast, and energy consumption of the display screen. Traditional LED backlight devices often face problems such as complex installation of filter components and easy loosening and displacement during the design and manufacturing process. These problems directly affect the overall performance and stability of the display screen.

[0003] In existing LED backlight devices, filter components such as diffuser films, brightness enhancement films, and light-shielding films usually need to be manually placed and fixed inside the frame one by one. This process is not only time-consuming and labor-intensive, but also makes it difficult to ensure the accurate position and flatness of each component. This can easily lead to the filter components becoming loose or shifting during subsequent use, thus affecting the display effect of the screen. In addition, since the relative position between the filter components is difficult to control precisely, it may also lead to uneven light distribution, resulting in bright spots or dark areas, reducing the overall visual effect of the screen.

[0004] Therefore, we propose an LED backlight device for displays that achieves rapid and accurate installation of the filter components by optimizing the bezel design and the fixing method of the filter components, while ensuring their stability during subsequent use. Utility Model Content

[0005] The purpose of this invention is to provide an LED backlight device for a display screen, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an LED backlight device for a display screen, including a frame, an internal groove in the middle of the frame, a light filter component inside the internal groove, and limiting mechanisms installed on both sides of the frame, with the light filter component distributed between the limiting mechanisms.

[0007] Optionally, the limiting mechanism includes slots opened on both sides of the frame, limiting grooves opened on both sides of the two sets of slots, limiting blocks slidably installed in each set of limiting grooves, inserts fixedly installed between adjacent sets of limiting blocks, and multiple sets of equidistantly distributed limiting films fixedly installed on the side walls of the two sets of inserts.

[0008] By adopting the above technical solutions, the installation efficiency of diffusion film, lower brightness enhancement film, upper brightness enhancement film and light-shielding film has been improved.

[0009] Optionally, the insert block is movably connected to the slot, the limiting film is a transparent film, and each set of the limiting film has an anti-slip layer on its sidewall.

[0010] By adopting the above technical solution, the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film, and the light-shielding film are clamped together on both sides.

[0011] Optionally, the light filtering assembly includes a diffusion film installed on the bottom side inside the built-in groove, a lower brightness enhancement film installed on the other side of the diffusion film, an upper brightness enhancement film installed on the other side of the lower brightness enhancement film, and a light-shielding film installed on the other side of the upper brightness enhancement film. Multiple sets of the diffusion film, lower brightness enhancement film, upper brightness enhancement film, and light-shielding film are respectively distributed between two adjacent sets of limiting films.

[0012] By adopting the above technical solution, the light source is evenly distributed on the screen.

[0013] Optionally, two sets of equidistant first mating holes are provided through both sides of the frame, and two sets of second mating holes are provided on both sides of the two sets of inserts.

[0014] By adopting the above technical solution, the first mating hole and the second mating hole correspond to each other.

[0015] Optionally, multiple sets of the first mating holes correspond to each other with each set of the second mating holes, and bolts are installed in the corresponding sets of the first and second mating holes.

[0016] By adopting the above technical solution, the insert block can be fixed.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] The technical solution of this application allows for the rapid installation of the filter assembly by first removing the diffusion film, lower brightness enhancement film, upper brightness enhancement film, and light-shielding film, and then sequentially inserting them into the limiting mechanism. These components are evenly distributed between adjacent sets of limiting films, ensuring that the diffusion film, lower brightness enhancement film, upper brightness enhancement film, and light-shielding film are flat from top to bottom. This not only enables the rapid installation of the filter assembly but also prevents the filter assembly from becoming loose or shifting by clamping the diffusion film, lower brightness enhancement film, upper brightness enhancement film, and light-shielding film between adjacent sets of limiting films.

[0019] With multiple sets of first mating holes corresponding to each set of second mating holes, and bolts installed in the corresponding sets of first and second mating holes, when the two sets of plugs are inserted into the slot, the second mating holes on the plugs will mate with the first mating holes on the frame. By installing bolts in the corresponding first and second mating holes, the plugs can be quickly positioned inside the frame. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of an LED backlight device for a display screen according to the present invention;

[0022] Figure 2 This is a schematic diagram of the slot and limiting slot distribution structure of an LED backlight device for a display screen according to the present invention;

[0023] Figure 3 This is a schematic diagram of the insert structure of an LED backlight device for a display screen according to the present invention.

[0024] In the diagram: 1. Frame; 11. Built-in groove; 12. Diffuser film; 13. Lower brightening film; 14. Upper brightening film; 15. Light-shielding film; 21. Slot; 22. Limiting groove; 23. Limiting block; 24. Insert block; 25. Limiting film; 3. Anti-slip layer; 31. First mating hole; 32. Second mating hole; 33. Bolt. Detailed Implementation

[0025] Please see Figure 1-3 This utility model provides a technical solution: an LED backlight device for a display screen, including a frame 1, an internal groove 11 in the middle of the frame 1, a filter component inside the internal groove 11, and limiting mechanisms installed on both sides of the frame 1. The filter component is distributed between the limiting mechanisms. The limiting mechanisms include slots 21 opened on both sides of the frame 1, limiting grooves 22 opened on both sides of the two sets of slots 21, limiting blocks 23 slidably installed in each set of limiting grooves 22, inserts 24 fixedly installed between adjacent sets of limiting blocks 23, and multiple sets of equidistantly distributed limiting films 25 fixedly installed on the side walls of the two sets of inserts 24, which improves the installation efficiency of the diffusion film 12, the lower brightness enhancement film 13, the upper brightness enhancement film 14, and the light-shielding film 15.

[0026] When the filter assembly is installed, the diffuser film 12, lower brightness enhancement film 13, upper brightness enhancement film 14, and light-shielding film 15 can be removed first and inserted into the limiting mechanism in sequence, evenly distributed between the two adjacent sets of limiting films 25, and ensuring that the diffuser film 12, lower brightness enhancement film 13, upper brightness enhancement film 14, and light-shielding film 15 are flat from top to bottom. This not only allows for quick installation of the filter assembly, but also prevents the filter assembly from loosening and shifting by clamping the diffuser film 12, lower brightness enhancement film 13, upper brightness enhancement film 14, and light-shielding film 15 with the two adjacent sets of limiting films 25 respectively.

[0027] In this technical solution, two sets of equidistant first mating holes 31 are provided on both sides of the frame 1, and two sets of second mating holes 32 are provided on both sides of the two sets of insert blocks 24. The multiple sets of first mating holes 31 correspond to each set of second mating holes 32. Bolts 33 are installed in the corresponding two sets of first mating holes 31 and second mating holes 32 to fix the insert blocks 24.

[0028] After the two sets of plugs 24 are inserted into the slots 21, the second mating hole 32 on the plug 24 will mate with the first mating hole 31 on the frame 1. By installing bolts 33 in the corresponding first mating hole 31 and second mating hole 32, the plug 24 can be quickly positioned inside the frame 1.

[0029] In this technical solution, the light filtering assembly includes a diffusion film 12 installed on the bottom side inside the built-in groove 11, a lower brightness enhancement film 13 installed on the other side of the diffusion film 12, an upper brightness enhancement film 14 installed on the other side of the lower brightness enhancement film 13, and a light-shielding film 15 installed on the other side of the upper brightness enhancement film 14. Multiple sets of diffusion films 12, lower brightness enhancement films 13, upper brightness enhancement films 14, and light-shielding films 15 are respectively distributed between two adjacent sets of limiting films 25, so that the light source is evenly distributed on the screen.

[0030] The light can be corrected to a uniform ground light source, thereby improving the light uniformity of the backlight module. Furthermore, by utilizing the light-gathering effect of the microprism structure, the scattered light is concentrated towards the front, thereby improving the overall brightness and uniformity.

[0031] In this technical solution, the insert 24 is movably connected to the slot 21, the limiting film 25 is a transparent film, and each set of limiting films 25 has an anti-slip layer 3 on its side wall to clamp the diffuser film 12, the lower brightening film 13, the upper brightening film 14 and the light-shielding film 15 on both sides.

[0032] When the diffuser film 12, the lower brightening film 13, the upper brightening film 14, and the light-shielding film 15 are clamped together by two adjacent sets of transparent films, the anti-slip layer 3 provided on the sidewall of each set of transparent films can effectively prevent the diffuser film 12, the lower brightening film 13, the upper brightening film 14, and the light-shielding film 15 from shifting when they shake.

[0033] In use, when the filter assembly is installed, the diffuser 12, lower brightening film 13, upper brightening film 14, and light-shielding film 15 can be removed first and inserted into the limiting mechanism in sequence, evenly distributed between the two adjacent sets of limiting films 25, ensuring that the diffuser 12, lower brightening film 13, upper brightening film 14, and light-shielding film 15 are flat from top to bottom. This not only allows for quick installation of the filter assembly, but also clamps the diffuser 12, lower brightening film 13, upper brightening film 14, and light-shielding film 15 with the two adjacent sets of limiting films 25, preventing the filter assembly from loosening and shifting. At the same time, with the insertion block 24 interlocking with the slot 21 and the limiting block 23 slidingly connected with the limiting groove 22, the installed filter can be... The components are quickly installed inside the frame 1, which greatly improves the installation efficiency of the diffuser film 12, lower brightening film 13, upper brightening film 14 and light-shielding film 15, and ensures the stability of the diffuser film 12, lower brightening film 13, upper brightening film 14 and light-shielding film 15 after installation. At the same time, multiple sets of first docking holes 31 correspond to each set of second docking holes 32, and bolts 33 are installed in the corresponding sets of first docking holes 31 and second docking holes 32. When the two sets of plugs 24 are inserted into the slots 21, the second docking holes 32 on the plugs 24 will align with the first docking holes 31 on the frame 1. By installing bolts 33 in the corresponding first docking holes 31 and second docking holes 32, the plugs 24 can be quickly positioned inside the frame 1.

Claims

1. An LED backlight device for a display screen, comprising a frame (1), characterized in that: The frame (1) has an internal groove (11) in the middle, and a filter component is inside the internal groove (11). Limiting mechanisms are installed on both sides of the frame (1), and the filter component is distributed between the limiting mechanisms.

2. The LED backlight device for a display screen according to claim 1, characterized in that: The limiting mechanism includes slots (21) opened on both sides of the frame (1), limiting grooves (22) opened on both sides of the two sets of slots (21), limiting blocks (23) slidably installed in each set of limiting grooves (22), inserts (24) fixedly installed between adjacent sets of limiting blocks (23), and multiple sets of equidistantly distributed limiting films (25) fixedly installed on the side walls of the two sets of inserts (24).

3. The LED backlight device for a display screen according to claim 2, characterized in that: The insert (24) is movably connected to the slot (21), the limiting film (25) is a transparent film, and each set of the limiting film (25) has an anti-slip layer (3) on its sidewall.

4. The LED backlight device for a display screen according to claim 2, characterized in that: The light filtering assembly includes a diffusion film (12) installed on the bottom side inside the built-in groove (11), a lower brightness enhancement film (13) installed on the other side of the diffusion film (12), an upper brightness enhancement film (14) installed on the other side of the lower brightness enhancement film (13), and a light-shielding film (15) installed on the other side of the upper brightness enhancement film (14). Multiple sets of the diffusion film (12), lower brightness enhancement film (13), upper brightness enhancement film (14), and light-shielding film (15) are respectively distributed between two adjacent sets of limiting films (25).

5. The LED backlight device for a display screen according to claim 1, characterized in that: The frame (1) has two sets of first docking holes (31) that are equidistantly distributed on both sides, and the two sets of inserts (24) have second docking holes (32) on both sides.

6. The LED backlight device for a display screen according to claim 5, characterized in that: Multiple sets of first mating holes (31) correspond to each other with each set of second mating holes (32), and bolts (33) are installed in the corresponding sets of first mating holes (31) and second mating holes (32).

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