Multi-layer composite lamp bead support and display module

Abstract

The utility model discloses a multi-layer composite lamp bead support and a display module. The multi-layer composite lamp bead support comprises a lampshade support, the lower surface of the lampshade support is sunken upwards to form a plurality of mutually-isolated containing cavities, and the containing cavities are used for containing lamp beads; the composite film is arranged on the upper surface of the lampshade support or in the containing cavity. According to the display panel, the lamp beads of the display unit panel are contained in the containing cavities, light emitted by each lamp bead can be projected into the corresponding containing cavity, the light condensation performance is enhanced, and mutual crosstalk of light rays between the adjacent lamp beads is avoided. Meanwhile, the composite film is arranged on the upper surface of the lampshade support or in the containing cavity, so that the composite film does not need to be directly pasted on the display unit plate, the production process is simplified, the production efficiency is improved, and the display effect of the display unit plate is also improved; meanwhile, when the lamp beads in the display unit plate are damaged, only the single lamp bead needs to be replaced, the composite film does not need to be damaged firstly, the maintenance cost is saved, and the service life of the product is effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of display technology, and in particular relates to a multi-layer composite lamp bead bracket and a display module. Background Art

[0002] At present, the application of LED display screens is very extensive in today's society, and has brought people a rich and colorful visual experience. Among them, three-dimensional LED display screens have attracted special attention due to the immersive feeling they bring.

[0003] There are two main types of display methods for 3D LED display screens: electronic shutter type and polarization type. The display principle of polarization type 3D LED display screen is to divide all pixel arrays constituting the 3D LED display screen into two equal parts, one part is equipped with a polarization film with a polarization direction, and the other part is equipped with a polarization film with a polarization direction opposite to the polarization direction. When the two parts of pixels display different contents respectively, the viewer can see realistic 3D images by wearing corresponding polarization glasses.

[0004] However, during the production process of the polarized 3D LED display, two different types of polarizing films need to be cut and pasted separately, which is a huge workload, low production efficiency, and consumes a lot of human and material resources. In addition, since the LED display is composed of individual LED lamp beads welded on a PCB (printed circuit board), there are gaps between the LED lamp beads, and the sizes of the LED lamp beads cannot be strictly identical, resulting in the surface of the final LED display being uneven. Therefore, the surface of the 3D LED display formed after the polarizing film is pasted is also uneven, which seriously affects the effect of the 3D display; at the same time, the pasted polarizing film is also easy to fall off, shortening the service life of the entire product. Moreover, when a single LED lamp bead inside the 3D LED display made by this method needs to be repaired due to damage, the surface polarizing film must be torn off and discarded before the lamp bead can be removed for repair, and the repair cost is too high. Utility Model Content

[0005] The utility model provides a multi-layer composite lamp bead bracket and a display module, which solves the problems of the existing three-dimensional LED display screen having complex production process, low production efficiency, waste of manpower and material resources, poor three-dimensional display effect of the whole product, short service life and high maintenance cost.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is to provide a multi-layer composite lamp bead bracket, including: a lampshade bracket, the lampshade bracket is a plate-like structure, the lower surface of the lampshade bracket is recessed upward to form a plurality of mutually isolated accommodating cavities, the accommodating cavities are used to accommodate lamp beads, and an isolation wall is arranged between two adjacent accommodating cavities; a composite film, the composite film is arranged on the upper surface of the lampshade bracket or in the accommodating cavity, and the composite film is composed of one of an anti-glare film, an anti-reflection film, and a polarizing film, or a composite of multiple films.

[0007] In some embodiments, the upper surface of the lampshade bracket is a plane, the size of the composite film is matched with the size of the lampshade bracket, and the composite film is fixedly bonded to the upper surface of the lampshade bracket.

[0008] In some embodiments, the upper surface of the lampshade bracket is flat, and the composite membrane includes a plurality of square sub-membranes of the same shape and size, the number of the square sub-membranes is the same as the number of the accommodating cavities, the size of the square sub-membranes is adapted to the size of the accommodating cavities, and each of the square sub-membranes is attached to the top surface inside the corresponding accommodating cavity.

[0009] In some embodiments, each of the square sub-membranes is fixedly adhered to the top surface inside the corresponding accommodating cavity through an adhesive layer, and the adhesive layer includes a hot melt adhesive layer, a silicone layer, or a UV adhesive layer.

[0010] In some embodiments, the accommodating cavity runs through the lampshade bracket, and the composite membrane includes a plurality of square sub-membranes of the same shape and size. The number of the square sub-membranes is the same as the number of the accommodating cavities, and the size of the square sub-membranes is adapted to the size of the accommodating cavity. Each of the square sub-membranes is engaged with the upper part of the accommodating cavity through the inner wall of the corresponding accommodating cavity.

[0011] In some embodiments, the upper surface of the lampshade bracket is a plane, and the composite membrane includes a plurality of strip sub-membranes of the same shape and size, the number of the strip sub-membranes is the same as the number of the accommodating cavities, the size of the strip sub-membranes is adapted to the size of the accommodating cavities, and each of the strip sub-membranes is attached to the top surface inside the corresponding accommodating cavity.

[0012] In some embodiments, a protrusion for engaging the lamp bead is provided on the inner wall of the accommodating cavity.

[0013] In some embodiments, the longitudinal cross-section of the accommodating cavity is in the shape of a rectangle, an isosceles trapezoid that is narrow at the top and wide at the bottom, or an isosceles trapezoid that is wide at the top and narrow at the bottom.

[0014] In some embodiments, the lampshade bracket is made of transparent PC or PVC; the isolation wall is made of transparent or opaque material.

[0015] The utility model also provides a display module, including a display unit board and a multi-layer composite lamp bead bracket as described above installed on the display unit board, wherein the display unit board includes a PCB board and a plurality of evenly arranged lamp beads welded on the upper surface of the PCB board.

[0016] The beneficial effects of the utility model are as follows: the utility model discloses a multi-layer composite lamp bead bracket and a display module. The multi-layer composite lamp bead bracket comprises: a lamp shade bracket, the lamp shade bracket is a plate-shaped structure, the lower surface of the lamp shade bracket is recessed upward to form a plurality of mutually isolated accommodating cavities, the accommodating cavities are used to accommodate lamp beads, and a partition wall is arranged between two adjacent accommodating cavities; a composite film, the composite film is arranged on the upper surface of the lamp shade bracket or in the accommodating cavity, and the composite film is composed of one or a plurality of anti-glare films, anti-reflection films, and polarizing films. The display module comprises: a display unit board and a multi-layer composite lamp bead bracket as described above installed on the display unit board, the display unit board comprises a PCB board and a plurality of uniformly arranged lamp beads welded on the upper surface of the PCB board. The multi-layer composite lamp bead bracket of the utility model accommodates the lamp beads on the display unit board through the accommodating cavity, so that the light emitted by each lamp bead can be projected into its corresponding accommodating cavity, and will not be projected into other accommodating cavities, which not only enhances the light focusing, but also avoids the light crosstalk between adjacent lamp beads, thereby improving the display effect of the display unit board. At the same time, the utility model arranges a composite film on the upper surface of the lampshade bracket or in the accommodating cavity, so that the composite film does not need to be directly pasted on the display unit board, which not only simplifies the production process, improves production efficiency, saves manpower and material resources, but also improves the display effect of the entire display unit board; at the same time, when the lamp beads in the display unit board are damaged, only a single lamp bead needs to be replaced without tearing off and destroying the composite film first, which not only saves maintenance costs but also effectively extends the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial three-dimensional structural schematic diagram of the front side of a multi-layer composite lamp bead bracket of the utility model;

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the reverse side of a multi-layer composite lamp bead bracket of the utility model;

[0019] Figure 3 This is a front cross-sectional view of a multi-layer composite lamp bead bracket of the utility model;

[0020] Figure 4 It is a front cross-sectional view of another embodiment of a multi-layer composite lamp bead bracket of the utility model;

[0021] Figure 5 It is a front cross-sectional view of another embodiment of a multi-layer composite lamp bead bracket of the utility model;

[0022] Figure 6 This is a bottom view schematic diagram of a multi-layer composite lamp bead bracket of the utility model;

[0023] Figure 7 It is a front cross-sectional view of another embodiment of a multi-layer composite lamp bead bracket of the utility model;

[0024] Figure 8 It is a front cross-sectional view of another embodiment of a multi-layer composite lamp bead bracket of the utility model;

[0025] Fig. 9 It is a partial three-dimensional structural schematic diagram of the reverse side of another embodiment of a multi-layer composite lamp bead bracket of the utility model;

[0026] Fig.10 It is a front cross-sectional view of another embodiment of a multi-layer composite lamp bead bracket of the utility model;

[0027] Fig.11 It is an exploded schematic diagram of a display module of the utility model. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0030] like Figures 1 to 11 As shown, the utility model provides a multi-layer composite lamp bead bracket 1, comprising:

[0031] The lampshade bracket 2 is a plate-like structure. The lower surface 24 of the lampshade bracket 2 is recessed upward to form a plurality of mutually isolated accommodating cavities 21 . The accommodating cavities 21 are used to accommodate lamp beads 42 . An isolation wall 22 is provided between two adjacent accommodating cavities 21 .

[0032] The composite film 3 is arranged on the upper surface 23 of the lampshade bracket 2 or in the accommodating cavity 21 . The composite film 3 is composed of one of an anti-glare film, an anti-reflection film, and a polarizing film or a composite of multiple films.

[0033] The multi-layer composite lamp bead bracket 1 of the utility model accommodates the lamp bead 42 on the display unit board 4 through the accommodating cavity 21, so that the light emitted by each lamp bead 42 can be projected into its corresponding accommodating cavity 21, and will not be projected into other accommodating cavities 21, which not only enhances the light focusing, but also avoids the light crosstalk between adjacent lamp beads 42, thereby improving the display effect of the display unit board 4. At the same time, the utility model sets a composite film 3 on the upper surface 23 of the lampshade bracket 2 or in the accommodating cavity 21, so that the composite film 3 does not need to be directly pasted on the display unit board 4, which not only simplifies the production process, improves production efficiency, saves manpower and material resources, but also improves the display effect of the entire display unit board 4; at the same time, when the lamp bead 42 in the display unit board 4 is damaged, only a single lamp bead 42 needs to be replaced, without first tearing off and destroying the composite film 3, which not only saves maintenance costs, but also effectively extends the service life of the product.

[0034] Combine the following Figures 1 to 11 , the above-mentioned multi-layer composite lamp bead bracket 1 is described in detail with a specific embodiment.

[0035] refer to Figures 1 to 3 , Figures 7 to 10 The utility model provides a multi-layer composite lamp bead bracket 1, comprising: a lampshade bracket 2, the lampshade bracket 2 is a plate-shaped structure, the lower surface 24 of the lampshade bracket 2 is recessed upward to form a plurality of mutually isolated accommodating cavities 21, the accommodating cavities 21 are used to accommodate lamp beads 42, and a partition wall 22 is arranged between two adjacent accommodating cavities 21; a composite film 3, the composite film 3 is arranged on the upper surface 23 of the lampshade bracket 2 or in the accommodating cavity 21, and the composite film 3 is composed of one of an anti-glare film, an anti-reflection film, and a polarizing film, or a composite of multiple films.

[0036] As a first optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, Figure 2 , Figure 6 , Fig. 9 As shown, it can be seen that the lampshade bracket 2 is a plate-shaped structure as a whole, and the size of the lampshade bracket 2 is compatible with the size of the display unit board 4 of the utility model.

[0037] Further, combined with Figures 1 to 3The lower surface 24 of the lampshade bracket 2 is recessed upward to form a plurality of mutually isolated accommodating cavities 21. The size of the accommodating cavities 21 matches the size of the lamp beads 42. The accommodating cavities 21 are used to accommodate the lamp beads 42. A partition wall 22 is provided between two adjacent accommodating cavities 21. The width of the partition wall 22 is slightly smaller than the gap between the lamp beads 42 on the display unit board 4. The lamp beads 42 on the display unit board 4 are accommodated by the accommodating cavities 21, so that the light emitted by each lamp bead 42 can be projected into its corresponding accommodating cavity 21, and will not be projected into other accommodating cavities 21, which not only enhances the light focusing, but also avoids the light crosstalk between adjacent lamp beads 42, effectively improving the display effect of the display module of the utility model.

[0038] In this embodiment, the material of the lampshade bracket 2 is a transparent PC material or a PVC material. The use of a transparent lampshade bracket 2 can make the light of the lamp bead 42 pass through better, avoid light loss, and present the picture better to people. It should be noted that: PC material, the full name of which is polycarbonate, is a thermoplastic plastic with many excellent properties: PC material has excellent transparency, heat resistance, and impact resistance, and the melting point is between 220 and 260 degrees Celsius. PC material has good insulation performance, strength and hardness. PVC material, the full name of polyvinyl chloride (Polyvinylchloride), is the third largest synthetic polymer plastic in the world. PVC was once the world's largest general-purpose plastic and is widely used. PVC has two types: hard and soft.

[0039] The material of the partition wall 22 is transparent or opaque. The opaque material can better avoid the crosstalk between adjacent lamp beads 42.

[0040] Further, such as Figure 6 As shown, the inner wall of the accommodating cavity 21 is provided with a protrusion 25 for engaging the lamp bead 42. The protrusion 25 can be stuck on the side wall of the lamp bead 42, playing the role of fixing the multi-layer composite lamp bead bracket 1 on the surface of the display unit board 4.

[0041] In some other embodiments, not every accommodating cavity 21 has the protrusion 25 , and only some of the accommodating cavities 21 need to have the protrusion 25 , which not only saves materials but also reduces the complexity of processing.

[0042] For further reference, Figures 3 to 5 The longitudinal cross-section of the accommodating cavity 21 is in the shape of a rectangle, an isosceles trapezoid narrow at the top and wide at the bottom, or an isosceles trapezoid wide at the top and narrow at the bottom.

[0043] Figure 4 The longitudinal section of the middle accommodating cavity 21 is narrow at the top and wide at the bottom. After the lamp bead 42 is accommodated in the accommodating cavity 21, the light emitted by the lamp bead 42 can be better aggregated in the upper part of the accommodating cavity 21, thereby improving the display intensity.

[0044] Figure 5 The longitudinal section of the middle accommodating cavity 21 is wide at the top and narrow at the bottom, so that the lamp bead 42 is not easy to fall out after being located in the accommodating cavity 21. The narrow design at the bottom can better fix the lamp bead 42, making the stability between the multi-layer composite lamp bead bracket 1 and the display unit board 4 stronger.

[0045] For further reference, Figure 1 , Figures 3 to 5 In this embodiment, the upper surface 23 of the lampshade bracket 2 is a plane, the size of the composite film 3 is matched with the size of the lampshade bracket 2 , and the composite film 3 is fixedly bonded to the upper surface 23 of the lampshade bracket 2 .

[0046] In this embodiment, the composite film 3 is bonded to the upper surface 23 of the lampshade bracket 2 through an adhesive layer, and the adhesive layer can be a hot melt adhesive layer, a silicone layer, or a UV adhesive layer. It should be noted that hot melt adhesive (Hot G l ue) is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. It is solid in itself, easy to package, transport, and store, solvent-free, pollution-free, and non-toxic. The production process is simple, high added value, and high bonding strength. Silica gel is also known as silica gel, which is a highly active adsorption material and belongs to an amorphous substance. UV glue, also known as shadowless glue, photosensitive glue or ultraviolet light curing glue, is a special type of adhesive. Its characteristic is that it must be cured under ultraviolet light. It has the advantages of rapid curing, high strength, good transparency and weather resistance, and is not easy to yellow or whiten after curing. In addition, UV glue also has the advantages of environmental protection and energy saving.

[0047] Furthermore, the composite film 3 is composed of one or more of an anti-glare film, an anti-reflection film, and a polarizing film. That is, the composite film 3 can be an anti-glare film with an anti-glare function. The anti-glare film can effectively reduce the glare caused by reflection and improve the user experience. The composite film 3 can also be an anti-reflection film, also known as an anti-reflection film. Its main function is to reduce or eliminate reflected light, thereby increasing the light transmittance of the lamp bead 42 and reducing or eliminating stray light. The composite film 3 can also be a polarizing film. The polarizing film is a film layer that converts natural light into polarized light. The use of a polarizing film can transform the display unit board 4 from presenting a two-dimensional picture to presenting a realistic three-dimensional stereoscopic picture. In other optional embodiments, the composite film 3 can be composed of an anti-glare film and an anti-reflection film, and has the functions of anti-glare and eliminating stray light; the composite film 3 can also be composed of an anti-glare film and a polarizing film, and has the functions of anti-glare and three-dimensional display; the composite film 3 can also be composed of an anti-reflection film and a polarizing film, and has the functions of eliminating stray light and three-dimensional display; the composite film 3 can also be composed of a composite of the above three films, which not only has the functions of anti-glare and eliminating stray light, but also can cooperate with the display unit panel 4 to realize three-dimensional display.

[0048] As a second optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, Figure 7 As shown, the upper surface 23 of the lampshade bracket 2 is a plane. The composite membrane 3 includes a plurality of square sub-membranes 31 of the same shape and size. The number of the square sub-membranes 31 is the same as the number of the accommodating cavities 21. The size of the square sub-membranes 31 matches the size of the accommodating cavities 21. Each square sub-membrane 31 is attached to the top surface of the corresponding accommodating cavity 21. The adhesive layer can be used for bonding, or the toughness of the square sub-membrane 31 can be used for positioning. When the adhesive layer is used for bonding, the adhesive layer includes a hot melt adhesive layer, a silicone layer, or a UV adhesive layer. The longitudinal cross-sectional shape of the accommodating cavity 21 in this embodiment is Figure 7 In addition to the rectangle shown, it can also be an isosceles trapezoid that is narrow at the top and wide at the bottom, or an isosceles trapezoid that is wide at the top and narrow at the bottom. The rest of the content can refer to the first optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, and will not be repeated here.

[0049] As a third optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, Figure 8 As shown, the accommodating cavity 21 passes through the lampshade bracket 2. The composite membrane 3 includes a plurality of square sub-membranes 31 of the same shape and size. The number of the square sub-membranes 31 is the same as the number of the accommodating cavities 21. The size of the square sub-membranes 31 matches the size of the accommodating cavities 21. Each square sub-membrane 31 is engaged with the upper part of the accommodating cavity 21 through the inner wall of the corresponding accommodating cavity 21. The longitudinal cross-sectional shape of the accommodating cavity 21 in this embodiment is Figure 8 In addition to the rectangle shown, it can also be an isosceles trapezoid that is narrow at the top and wide at the bottom, or an isosceles trapezoid that is wide at the top and narrow at the bottom. The rest of the content can refer to the first optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, and will not be repeated here.

[0050] As a fourth optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, Fig. 9 , Fig.10 As shown, the upper surface 23 of the lampshade bracket 2 is a plane, and the composite membrane 3 includes a plurality of strip-shaped sub-membranes 32 of the same shape and size. The number of the strip-shaped sub-membranes 32 is the same as the number of the accommodating cavities 21, and the size of the strip-shaped sub-membranes 32 is adapted to the size of the accommodating cavities 21. Each strip-shaped sub-membrane 32 is attached to the top surface of the corresponding accommodating cavity 21. By providing the strip-shaped sub-membranes 32 and the strip-shaped accommodating cavities 21 adapted thereto, the processing procedures can be further simplified and the production efficiency can be improved. The rest of the contents can refer to the first optional embodiment of the multi-layer composite lamp bead bracket 1 of the utility model, which will not be repeated here.

[0051] like Fig.11As shown, the utility model also provides a display module, including a display unit board 4 and a multi-layer composite lamp bead bracket 1 as described above installed on the display unit board 4, the display unit board 4 includes a PCB board 41 and a plurality of evenly arranged lamp beads 42 welded on the upper surface of the PCB board 41.

[0052] Combination Figure 1 , Figure 2 When the multi-layer composite lamp bead bracket 1 is installed, the lower surface 24 is usually in contact with the PCB board 41 where the lamp bead 42 is located. Applying adhesive on the side of the partition wall 22 in contact with the PCB board 41 can increase the stability between the multi-layer composite lamp bead bracket 1 and the display unit board 4.

[0053] In the present invention, the lamp bead 42 can be a light source such as an LED lamp, an OLED lamp, an LCD lamp, etc., whose pixels can be independently controlled.

[0054] Furthermore, in the present invention, the height of the lamp bead 42 is 0.85 mm to 1 mm, and the height of the lampshade bracket 2 is 1.7 mm to 2 mm.

[0055] In summary, the utility model arranges the composite film 3 on the upper surface 23 of the lampshade bracket 2 or in the accommodating cavity 21, so that the composite film 3 does not need to be directly pasted on the display unit board 4, which not only simplifies the production process, improves production efficiency, saves manpower and material resources, but also improves the display effect of the entire display unit board 4; at the same time, when the lamp bead 42 in the display unit board 4 is damaged, only a single lamp bead 42 needs to be replaced without tearing off and destroying the composite film 3 first, which not only saves maintenance costs, but also effectively extends the service life of the product.

[0056] It can be seen that the utility model discloses a multi-layer composite lamp bead bracket and a display module. The multi-layer composite lamp bead bracket includes: a lampshade bracket, the lampshade bracket is a plate-shaped structure, the lower surface of the lampshade bracket is recessed upward to form a plurality of mutually isolated accommodating cavities, the accommodating cavities are used to accommodate lamp beads, and a partition wall is arranged between two adjacent accommodating cavities; a composite film, the composite film is arranged on the upper surface of the lampshade bracket or in the accommodating cavity, and the composite film is composed of one or more of an anti-glare film, an anti-reflection film, and a polarizing film. The display module includes: a display unit board and a multi-layer composite lamp bead bracket as described above installed on the display unit board, and the display unit board includes a PCB board and a plurality of uniformly arranged lamp beads welded on the upper surface of the PCB board. The multi-layer composite lamp bead bracket of the utility model accommodates the lamp beads on the display unit board through the accommodating cavity, so that the light emitted by each lamp bead can be projected into its corresponding accommodating cavity, and will not be projected into other accommodating cavities, which not only enhances the light focusing, but also avoids the light crosstalk between adjacent lamp beads, thereby improving the display effect of the display unit board. At the same time, the utility model arranges a composite film on the upper surface of the lampshade bracket or in the accommodating cavity, so that the composite film does not need to be directly pasted on the display unit board, which not only simplifies the production process, improves production efficiency, saves manpower and material resources, but also improves the display effect of the entire display unit board; at the same time, when the lamp beads in the display unit board are damaged, only a single lamp bead needs to be replaced without tearing off and destroying the composite film first, which not only saves maintenance costs but also effectively extends the service life of the product.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A multi-layer composite lamp bead bracket, characterized in that: include: A lampshade bracket, wherein the lampshade bracket is in a plate-like structure, and the lower surface of the lampshade bracket is recessed upward to form a plurality of mutually isolated accommodating cavities, wherein the accommodating cavities are used to accommodate lamp beads, and a partition wall is provided between two adjacent accommodating cavities; A composite film is arranged on the upper surface of the lampshade bracket or in the accommodating cavity, and the composite film is composed of one of an anti-glare film, an anti-reflection film, and a polarizing film, or a composite of multiple films.

2. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: The upper surface of the lampshade bracket is a plane, the size of the composite film is matched with the size of the lampshade bracket, and the composite film is fixedly bonded to the upper surface of the lampshade bracket.

3. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: The upper surface of the lampshade bracket is a plane, and the composite membrane includes a plurality of square sub-membranes of the same shape and size. The number of the square sub-membranes is the same as the number of the accommodating cavities, and the size of the square sub-membranes is adapted to the size of the accommodating cavities. Each of the square sub-membranes is attached to the top surface inside the corresponding accommodating cavity.

4. The multi-layer composite lamp bead bracket according to claim 3, characterized in that: Each of the square sub-membranes is fixedly adhered to the top surface of the inside of the corresponding accommodating cavity through an adhesive layer, and the adhesive layer includes a hot melt adhesive layer, a silicone layer, or a UV adhesive layer.

5. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: The accommodating cavity runs through the lampshade bracket, and the composite membrane includes a plurality of square sub-membranes of the same shape and size. The number of the square sub-membranes is the same as the number of the accommodating cavities, and the size of the square sub-membranes is adapted to the size of the accommodating cavity. Each of the square sub-membranes is engaged with the upper part of the accommodating cavity through the inner wall of the corresponding accommodating cavity.

6. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: The upper surface of the lampshade bracket is a plane, and the composite membrane includes a plurality of strip sub-membranes of the same shape and size. The number of the strip sub-membranes is the same as the number of the accommodating cavities, and the size of the strip sub-membranes is adapted to the size of the accommodating cavities. Each of the strip sub-membranes is attached to the top surface inside the corresponding accommodating cavity.

7. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: A protrusion for engaging the lamp bead is arranged on the inner wall of the accommodating cavity.

8. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: The longitudinal section of the accommodating cavity is in the shape of a rectangle, an isosceles trapezoid narrow at the top and wide at the bottom, or an isosceles trapezoid wide at the top and narrow at the bottom.

9. The multi-layer composite lamp bead bracket according to claim 1, characterized in that: The material of the lampshade bracket is a transparent PC material or a PVC material; the material of the isolation wall is a transparent material or an opaque material.

10. A display module, characterized in that: It comprises a display unit board and a multilayer composite lamp bead bracket as claimed in any one of claims 1 to 9 installed on the display unit board, wherein the display unit board comprises a PCB board and a plurality of evenly arranged lamp beads welded on the upper surface of the PCB board.

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