Fabricated backboard

Abstract

The invention relates to the field of assembly type back plates, and discloses an assembly type back plate. The connecting structure comprises a bottom plate, at least two long vertical edges, at least two short vertical edges, edge connecting pieces, corner connecting pieces and a plurality of screws, firstly, the two long vertical edges and the two short vertical edges are aligned and positioned at the four corners through the L-shaped corner connecting pieces, and then the screws penetrate through mounting holes in the two sides of the corner connecting pieces for fastening; the bottom plate is placed on the inner side of the frame body, the edge connecting pieces can be connected to the edges of the bottom plate and the side edges of the vertical edges in a bridging mode at the proper positions of the long vertical edges or the short vertical edges, then fastening is conducted through the screws, and therefore the bottom plate is fixed to the frame body, and the effect of reinforcing the whole structure is achieved. According to the requirements of the size and stress of the back plate, a plurality of edge connecting pieces can be uniformly arranged along the edge length direction, so that the machining process difficulty of the back plate can be reduced, and the cost of the backlight source can be reduced by repeatedly using parts.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated back panel technology, specifically a prefabricated back panel. Background Technology

[0002] The backplate is one of the structural components of the backlight module. It is mainly made of metal and is formed by die stamping. It is responsible for supporting and protecting the optical components. The material of the backplate is mainly metal, and it is generally made by die stamping. As part of the backlight module, the backplate is mainly responsible for supporting and protecting the optical components, providing a stable and reliable home for all precision optical components. The backlight module is a complex system. In addition to the backplate, it also includes structural components such as the middle frame, the plastic frame, and the front frame, as well as optical components such as the backlight source, reflector, light guide plate / diffuser plate, diffuser, other light enhancement films, and related auxiliary materials. Backlight modules are mainly divided into two architectures: direct-lit and side-lit, each with its own advantages and challenges. They are widely used in LCD TVs, computer monitors, mobile communication devices, and automotive dashboards.

[0003] However, with the continuous development of the display industry in recent years, the demand for low-cost products has become increasingly prominent, which has placed new demands on the cost of backlights. Against this backdrop, existing backlights suffer from the following problems:

[0004] 1. Developing a new specification product usually requires creating a new mold to produce a corresponding specification back panel. The complexity of the back panel's processing technology directly affects the processing cost. The prefabricated back panel designed in this patent greatly reduces the complexity of the processing technology by disassembling the back panel into multiple individual parts for processing, thereby reducing costs.

[0005] 2. In the experimental research stage of optical materials research, when the requirements for appearance parts such as back plates are not high, re-molding the back plate would increase the research and development cost. At this time, the prefabricated back plate designed in this patent avoids the problem of high cost caused by re-molding by reusing connectors and screws and selecting easily processed materials to replace metal sheets.

[0006] 3. Currently, due to the non-removable backlight panel, once the product is assembled, replacing internal components usually requires completely disassembling the backlight, which is quite complex. The prefabricated backlight panel designed in this patent is detachable. When the backlight is assembled and internal components need to be replaced, only the metal plate in the position to be replaced needs to be removed, which reduces the complexity of replacing components. Summary of the Invention

[0007] The purpose of this invention is to provide an assembled backplate in order to solve the problems mentioned above.

[0008] The technical solution adopted in this invention is as follows: an assembled back panel, including a base plate, at least two long vertical sides, at least two short vertical sides, side connectors, corner connectors, and a plurality of screws. The corner connectors are used to connect the long vertical sides and the short vertical sides. The side connectors are used to connect the base plate to the long vertical sides and the short vertical sides. The screws are used to detachably connect the corner connectors, the side connectors, the base plate, the long vertical sides, and the short vertical sides.

[0009] By adopting the above technical solution, the two long vertical sides and two short vertical sides are first aligned and positioned at the four corners using L-shaped corner connectors. Then, screws are used to fasten them through the mounting holes on both sides of the corner connectors, thereby forming a rectangular frame. The base plate can then be placed inside the frame. By using side connectors at appropriate positions on the long or short vertical sides, they can be straddled between the edge of the base plate and the side of the vertical side. Screws are then used to fasten them, thus fixing the base plate to the frame and strengthening the overall structure. According to the size of the back plate and the stress requirements, multiple side connectors can be evenly arranged along the side length to further enhance structural stability. This reduces the processing difficulty of the back plate and allows for the reuse of parts, thereby reducing the cost of the backlight.

[0010] In a preferred embodiment, the corner connector is an L-shaped structure with mounting holes on both sides for the screws to pass through.

[0011] By adopting the above technical solution, and by setting the corner connectors to an L-shaped structure, it can be naturally adapted to the scene of right-angle splicing, thereby effectively aligning the long and short vertical sides, and thus ensuring the geometric stability of the back panel frame. The mounting holes can be used to fix it simultaneously in two vertical directions with screws, thereby forming a solid mechanical connection, which makes it stable and fixed.

[0012] In a preferred embodiment, multiple edge connectors are provided at intervals along the length direction of the long or short vertical edge.

[0013] By adopting the above technical solution, the even distribution of multiple side connectors can help to accurately position and pre-fix the base plate during assembly, thereby reducing assembly errors. This allows the connection between the base plate and the side to be a continuous support formed by multiple connection points, enhancing the back plate's resistance to bending and torsion during long-term use or when subjected to external impacts. This avoids deformation or cracking caused by local stress concentration, giving it both support and protection.

[0014] In a preferred embodiment, the edge connector is disposed in the middle of the long or short vertical edge to reinforce the connection between the base plate and the vertical edge.

[0015] By adopting the above technical solution, and by setting the side connector in the middle of the long or short vertical side, it can form a central support for the connection point between the base plate and the side, thereby effectively offsetting the bending stress caused by external force or thermal expansion and contraction. This makes it suitable for the stability requirements of large-size back plates under long-term load or vibration environments, giving it both fixation and applicability.

[0016] In a preferred embodiment, the base plate, the long vertical side, and the short vertical side are independent metal plates, and the metal plates are aluminum alloy plates.

[0017] By adopting the above technical solution and setting up independent metal plates, the modular nature of the back panel can be reflected, thus forming a fundamental difference from the traditional one-piece stamped back panel. The aluminum alloy plate is easy to perform cold processing such as punching and bending, which is suitable for standardized and mass production. In addition, the low density of aluminum alloy helps to reduce the overall weight of the backlight module, making it practical and adaptable.

[0018] In a preferred embodiment, the base plate, the long vertical side, and the short vertical side are independent components formed by punching and bending sheet metal.

[0019] By adopting the above technical solution, the punching and bending process is suitable for standardized, small-batch, and multi-specification production scenarios. This allows each component to be processed independently, eliminating the need for complex molds and significantly reducing the cost per piece. Furthermore, when product specifications change, only the sheet metal dimensions need to be adjusted, and corner and edge connectors can be reused, making them versatile and applicable.

[0020] In a preferred embodiment, the long vertical side and the short vertical side are connected at the corner by an L-shaped corner connector.

[0021] By adopting the above technical solution, the L-shaped structure naturally matches the 90° corner, allowing it to simultaneously fit the inner surfaces of two adjacent vertical sides. This provides the maximum contact area and structural synergy, effectively transmitting shear force and bending moment under stress, preventing corner loosening, misalignment, or cracking, and significantly improving the overall rigidity and long-term stability of the back panel. The L-shaped corner connector, as an independent component, works with screws, making the corner connection detachable, replaceable, and reusable, thus providing practicality and convenience.

[0022] In a preferred embodiment, the base plate is connected to the side of the frame, which is composed of a long vertical side and a short vertical side, via one or more side connectors.

[0023] By adopting the above technical solution, since the base plate is detachably fixed to the frame through one or more side connectors, when the optical components inside the backlight module need to be replaced or repaired, only the corresponding area of ​​the base plate needs to be removed, without disassembling the entire back plate. This greatly simplifies the maintenance process, reduces the risk of secondary damage, and significantly improves after-sales efficiency and user experience, making it convenient and simple.

[0024] In a preferred embodiment, the backlight source includes a backlight source and an optical film, the base plate is used to support the optical film, and the frame formed by the long vertical side and the short vertical side is used to fix and accommodate the backlight source.

[0025] By adopting the above technical solution, the installed base plate serves as a support platform for the optical film, providing a flat and stable support surface. This ensures that films such as diffusers and brightness enhancement films receive light uniformly in the optical path, avoiding uneven brightness or halos caused by warping or displacement. The closed cavity formed by the frame created by the long and short vertical sides allows for precise fixation of the backlight source, limiting its lateral displacement and light leakage path. This enables the light to be directed onto the light guide plate or film, significantly improving light utilization and display uniformity.

[0026] In a preferred embodiment, back panels of different specifications can be assembled by replacing the base plate, long vertical side, and short vertical side of different sizes, and by using the corner connectors, side connectors, and screws of the same specification.

[0027] By adopting the above technical solution, various backplate specifications can be adapted simply by changing the size of the base plate, long vertical side and short vertical side. The corner connectors, side connectors and screws are universal components that can be reused. Compared with the high cost of traditional one-piece backplates, this can significantly reduce the pressure of mold investment and inventory, thus making it suitable for flexible production scenarios of multiple models and small batches of products, making it applicable and versatile.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. By disassembling the backlight backplate into multiple parts for assembly, the processing complexity of complex backlight backplates can be reduced. Furthermore, connectors and screws can be reused, so only metal sheets of the required size need to be produced to assemble the backplate. This reduces costs by reducing processing complexity and reusing parts, and also reduces the complexity of replacing internal backlight components.

[0030] 2. Compared to traditional integrated backplates, this modular backplate supports partial disassembly, allowing for the replacement of specific panels or internal components simply by loosening the screws in the corresponding area. This greatly simplifies the repair and replacement process of optical and electronic components inside the backlight module, reduces maintenance difficulty and time costs, and improves product maintainability. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Marked in the diagram: 1. Base plate; 2. Short vertical side; 3. Long vertical side; 4. Side connector; 5. Corner connector; 6. Screw. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example:

[0035] Reference Figure 1 An assembled back panel includes a base plate 1, at least two long vertical sides 3, at least two short vertical sides 2, side connectors 4, corner connectors 5, and a plurality of screws 6. The corner connectors 5 are used to connect the long vertical sides 3 and the short vertical sides 2, the side connectors 4 are used to connect the base plate 1 to the long vertical sides 3 and the short vertical sides 2, and the screws 6 are used to detachably connect the corner connectors 5 and the side connectors 4 to the base plate 1, the long vertical sides 3, and the short vertical sides 2. First, align and position the two long vertical sides 3 and the two short vertical sides 2 at the four corners using L-shaped corner connectors 5. Then, tighten the screws 6 through the mounting holes on both sides of the corner connectors 5 to form a rectangular frame. The base plate 1 can then be placed inside the frame. By using side connectors 4 at appropriate positions, such as the middle, on the long vertical sides 3 or short vertical sides 2, the base plate 1 can be fixed to the frame and strengthened. According to the size of the back plate and the stress requirements, multiple side connectors 4 can be evenly arranged along the side length to further enhance structural stability. This reduces the processing difficulty of the back plate and allows for the reuse of parts, thereby reducing the cost of the backlight.

[0036] Reference Figure 1The corner connector 5 has an L-shaped structure with mounting holes on both sides for screws 6 to pass through. The L-shaped structure of the corner connector 5 naturally adapts to right-angle splicing scenarios, effectively aligning the long vertical side 3 and the short vertical side 2, thus ensuring the geometric stability of the back panel frame. The mounting holes allow for simultaneous fixing in two vertical directions with screws 6, forming a robust mechanical connection that provides stability and fixation.

[0037] Reference Figure 1 Multiple side connectors 4 are spaced apart along the length of the long vertical side 3 or the short vertical side 2. The even distribution of multiple side connectors 4 helps to accurately position and pre-fix the base plate 1 during assembly, thereby reducing assembly errors. This ensures that the connection between the base plate 1 and the side is a continuous support formed by multiple connection points, enhancing the bending and torsional resistance of the back plate under long-term use or external impact, and preventing deformation or cracking caused by local stress concentration, thus providing both support and protection.

[0038] Reference Figure 1 The side connector 4 is located in the middle of the long vertical side 3 or the short vertical side 2 to reinforce the connection between the base plate 1 and the vertical side. By placing the side connector 4 in the middle of the long vertical side 3 or the short vertical side 2, it forms a central support for the connection point between the base plate 1 and the side, thereby effectively offsetting the bending stress caused by external forces or thermal expansion and contraction. This makes it suitable for the stability requirements of large-size back plates under long-term load-bearing or vibration environments, giving it both fixation and applicability.

[0039] Reference Figure 1 The base plate 1, long vertical side 3, and short vertical side 2 are all independent metal sheets, made of aluminum alloy. By using these independent metal sheets, the modular nature of the back panel is highlighted, fundamentally different from traditional one-piece stamped back panels. The aluminum alloy sheets are easy to process through cold working processes such as punching and bending, making them suitable for standardized and mass production. Furthermore, the low density of aluminum alloy helps reduce the overall weight of the backlight module, enhancing its practicality and adaptability.

[0040] Reference Figure 1 The base plate 1, long vertical side 3, and short vertical side 2 are independent components formed by punching and bending sheet metal. The punching and bending process is suitable for standardized, small-batch, and multi-specification production scenarios, allowing each component to be processed independently without the need for complex molds. This also significantly reduces the cost per unit. Furthermore, when product specifications change, only the size of the sheet metal needs to be adjusted. The corner connector 5 and the edge connector 4 can be reused, making it versatile and applicable.

[0041] Reference Figure 1The long vertical side 3 and the short vertical side 2 are connected at the corner by an L-shaped corner connector 5. The L-shaped structure naturally matches the 90° corner, allowing it to simultaneously fit the inner surfaces of the two adjacent vertical sides, thus providing maximum contact area and structural synergy. This effectively transmits shear force and bending moment under stress, preventing corner loosening, misalignment, or cracking, significantly improving the overall rigidity and long-term stability of the back panel. The L-shaped corner connector 5, as an independent component, works with screws 6, making the corner connection detachable, replaceable, and reusable, thus providing practicality and convenience.

[0042] Reference Figure 1 The base plate 1 is connected to the side of the frame, which is composed of a long vertical side 3 and a short vertical side 2, via one or more side connectors 4. Since the base plate 1 is detachably fixed to the frame via one or more side connectors 4, when the optical components inside the backlight module need to be replaced or repaired, only the corresponding area of ​​the base plate 1 needs to be removed, without disassembling the entire backplate. This greatly simplifies the maintenance process, reduces the risk of secondary damage, and significantly improves after-sales efficiency and user experience, making it convenient and simple.

[0043] Reference Figure 1 The backlight source includes a backlight source and an optical film. The base plate 1 is used to support the optical film, and the frame formed by the long vertical side 3 and the short vertical side 2 is used to fix and accommodate the backlight source. By using the installed base plate 1 as a support platform for the optical film, it can provide a flat and stable support surface, thereby ensuring that films such as diffusers and brightness enhancement films receive light uniformly in the light path, avoiding uneven brightness or halo phenomena caused by warping or displacement. The closed cavity formed by the frame formed by the long vertical side 3 and the short vertical side 2 can accurately fix the backlight source, thereby limiting its lateral displacement and light leakage path, and thus allowing light to be directed onto the light guide plate or film, significantly improving light utilization and display uniformity.

[0044] Reference Figure 1 By replacing the base plate 1, long vertical side 3, and short vertical side 2 of different sizes, and using the same specifications of corner connectors 5, side connectors 4, and screws 6, back panels of different specifications can be assembled. By replacing the base plate 1, long vertical side 3, and short vertical side 2 of different sizes, only the material size needs to be adjusted to adapt to various back panel specifications. The corner connectors 5, side connectors 4, and screws 6 are universal components that can be reused. Compared with the high cost of traditional one-piece back panels, this significantly reduces the pressure of mold investment and inventory, making it suitable for flexible production scenarios of multiple models and small batches of products, thus giving it applicability and versatility.

[0045] The implementation principle of an assembly-type backplate embodiment of the present invention is as follows: First, the two long vertical sides 3 and the two short vertical sides 2 are aligned and positioned at the four corners using L-shaped corner connectors 5. Then, screws 6 are passed through the mounting holes on both sides of the corner connectors 5 for fastening, thereby forming a rectangular frame. The base plate 1 can then be placed inside the frame. By using side connectors 4 at appropriate positions, such as the middle, of the long vertical sides 3 or the short vertical sides 2, the base plate 1 can be fixed to the frame by using screws 6. This strengthens the overall structure. According to the size of the backplate and the requirements of the stress, multiple side connectors 4 can be evenly arranged along the side length to further enhance the structural stability. This reduces the processing difficulty of the backplate and allows for the reuse of parts, thereby reducing the cost of the backlight.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated back panel, characterized in that: It includes a base plate (1), at least two long vertical sides (3), at least two short vertical sides (2), side connectors (4), corner connectors (5), and multiple screws (6). The corner connectors (5) are used to connect the long vertical sides (3) and the short vertical sides (2). The side connectors (4) are used to connect the base plate (1) to the long vertical sides (3) and the short vertical sides (2). The screws (6) are used to detachably connect the corner connectors (5), the side connectors (4), the base plate (1), the long vertical sides (3), and the short vertical sides (2).

2. The assembled back panel as described in claim 1, characterized in that: The corner connector (5) has an L-shaped structure with mounting holes on both sides for the screw (6) to pass through.

3. The assembled back panel as described in claim 1, characterized in that: Multiple side connectors (4) are provided at intervals along the length direction of the long vertical side (3) or the short vertical side (2).

4. The assembled back panel as described in claim 1, characterized in that: The side connector (4) is located in the middle of the long vertical side (3) or the short vertical side (2) to reinforce the connection between the base plate (1) and the vertical side.

5. The assembled back panel as described in claim 1, characterized in that: The base plate (1), long vertical side (3) and short vertical side (2) are independent metal plates, and the metal plates are aluminum alloy plates.

6. The assembled back panel as described in claim 1, characterized in that: The base plate (1), long vertical side (3) and short vertical side (2) are independent components formed by punching and bending of sheet metal.

7. The assembled back panel as described in claim 1, characterized in that: The long vertical side (3) and the short vertical side (2) are connected at the corner by an L-shaped corner connector (5).

8. The assembled back panel as described in claim 1, characterized in that: The base plate (1) is connected to the side of the frame, which is composed of a long vertical side (3) and a short vertical side (2), by one or more side connectors (4).

9. A prefabricated back panel as described in claim 1, characterized in that: The backlight source includes a backlight source and an optical film. The base plate (1) is used to support the optical film, and the frame formed by the long vertical side (3) and the short vertical side (2) is used to fix and accommodate the backlight source.

10. A prefabricated back panel as described in claim 1, characterized in that: By replacing the base plate (1), long vertical side (3) and short vertical side (2) of different sizes, and using the corner connector (5), side connector (4) and screw (6) of the same specification, back plates of different specifications can be assembled.

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