A mesh display device

Abstract

The application discloses a grid display device, which comprises a grid formed by a plurality of interlaced row lines and column lines and LED light emitting bodies arranged on the grid. Each grid unit comprises two oppositely arranged conductive arms and two oppositely arranged structural arms. The conductive arms are arranged with the LED light emitting bodies, feeding lines and signal lines connected with the LED light emitting bodies. The structural arms are used for connecting and positioning the two conductive arms to maintain the shape of the grid unit. The conductive arms and the structural arms form a first air-permeable gap. The device can also be provided with a reinforcing structure with a second air-permeable gap. The reinforcing structure is used for maintaining the structural stability of the grid unit. The application forms an air-permeable grid structure while ensuring the LED display function, is suitable for outdoor high-altitude flying screens and the like, and has the advantages of light weight, good wind resistance, stable structure and low cost.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and in particular to a grid-shaped display device. Background Technology

[0002] The Flying Screen is a large-area grid-shaped LED display screen that can be suspended by drones and set up in non-fixed locations at high altitudes outdoors. It can be used for aerial advertising, brand display, large-scale events and city light shows.

[0003] Currently, the demand for flying screens lies in increasing the display area and improving display accuracy while reducing screen weight, as well as improving structural strength and high-altitude stability. Overall, there is an urgent need in this field to develop grid-shaped LED displays that combine lightweight, high transparency, low wind resistance, and high structural strength. Summary of the Invention

[0004] In view of this, the present invention proposes a grid-like display device, comprising a grid formed by a plurality of intersecting row lines and column lines, and LED light-emitting elements disposed in the grid, and including at least one row of grid, wherein each grid cell includes:

[0005] Two opposing conductive arms, each with an LED light-emitting element mounted thereon, and power supply lines and signal lines connecting the LED light-emitting elements; and

[0006] Two opposing structural arms are fixedly connected to the two opposing conductive arms, which are used to position the conductive arms and maintain the distance between the two opposing conductive arms;

[0007] The two opposing conductive arms and the two opposing structural arms together define the first ventilation gap.

[0008] Preferred,

[0009] The grid-like display device also includes a reinforcing structure. For each grid cell, the reinforcing structure is fixedly connected to the conductive arm and the structural arm to maintain the structural stability of the grid cell. The reinforcing structure also has a second ventilation gap that communicates with the first ventilation gap.

[0010] Preferred,

[0011] The reinforcing structure is at least one of a membrane support layer, a mesh support layer, a frame structure, or a rib structure. The reinforcing structure is fixed and supported at the bottom of the row lines and the column lines to limit the row lines and the column lines from spreading out.

[0012] Preferred,

[0013] The reinforcing structure is a membrane-like reinforcing layer that completely covers the row lines and column lines to prevent them from spreading out.

[0014] Preferred,

[0015] For the same row of grid cells, the conductive arms on the same side of each grid cell are continuously arranged or sequentially connected along the row direction, and the row line includes the conductive arms that are continuously arranged or sequentially connected; the multiple LED light emitters are equidistantly arranged along the extension direction of the conductive arms that are continuously arranged or sequentially connected.

[0016] Preferred,

[0017] The spacing between two adjacent conductive arms is equal.

[0018] Preferred,

[0019] The LED light emitters are located at the intersections and / or non-intersections of the grid; the LED light emitters are driven LED beads.

[0020] Preferred,

[0021] The structural arm has a certain rigidity and is connected to the conductive arm to reinforce the grid cell.

[0022] Preferred,

[0023] The structural arm is a non-conductive load-bearing arm that eliminates the need for the power supply line and the signal line.

[0024] Preferred,

[0025] The conductive arm is also provided with a structural reinforcement, which is connected to the adjacent structural arm as a whole.

[0026] In summary, this invention, by dividing the functions of the conductive arm carrying the LED light source and circuitry with the structural arm mainly used for positioning, connection, and reinforcement, can ensure the electrical connection and pixel arrangement of the LED light source, while also creating ventilation gaps within each grid unit to reduce wind resistance during outdoor high-altitude use. The structural arm does not need to have conductive circuitry, reducing the cost of circuit materials and insulation treatment, and also helps to reduce the overall weight. When the reinforcement structure is set, the reinforcement structure provides further support to the grid unit, and its second ventilation gap is connected to the first ventilation gap, so the ventilation effect is not significantly weakened. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a front view of Embodiment 1 of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0030] Figure 3 This is a schematic diagram of one form of the structure of Embodiment 2 of the present invention;

[0031] Figure 4 This is a schematic diagram of another form of the structure of Embodiment 2 of the present invention;

[0032] Figure 5 This is a schematic diagram of another embodiment of the present invention, which also includes an LED light-emitting body.

[0033] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of Embodiment 4 of the present invention.

[0035] Figure label:

[0036] 10. Row line; 100. Grid cell; 110. Conductive arm; 111. Structural reinforcement; 120. Structural arm; 130. First ventilation gap; 20. Column line; 30. LED light source; 40. Reinforcing structure; 410. Second ventilation gap; VCC. Power supply line; GND. Grounding line; SG. Signal line. Detailed Implementation

[0037] The following will be combined with the appendix Figure 1 To be continued Figure 6 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "row," "column," "parallel," "vertical," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0040] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0041] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0042] Example 1

[0043] Please refer to Figure 1 and Figure 2 This embodiment provides a grid-like display device, including a grid formed by a plurality of intersecting row lines 10 and column lines 20, and LED light-emitting elements 30 disposed on the grid. The grid includes at least one row of grid units 100, and in practical applications, multiple rows and columns of grid units 100 can be set according to the display area and resolution requirements.

[0044] Each grid cell 100 includes two opposing conductive arms 110 and two opposing structural arms 120. The two conductive arms 110 are arranged opposite each other as one set of opposite sides of the grid cell 100, forming a ventilation space between them. The two structural arms 120 are fixedly connected between the two conductive arms 110 as another set of opposite sides of the grid cell 100. The two structural arms 120 and the two conductive arms 110 together define a first ventilation gap 130. This first ventilation gap 130 penetrates the grid cell 100, allowing air to pass through the display device and reducing the wind resistance of the grid-shaped display device in outdoor high-altitude environments.

[0045] An LED light emitter 30 is mounted on the conductive arm 110. The conductive arm 110 also has a feed line and a signal line SG connecting the LED light emitter 30. The feed line includes a power supply line VCC and a ground line GND, used to supply power to the LED light emitter 30; the signal line is used to transmit display control signals to the LED light emitter 30. In some embodiments, the LED light emitter 30 may be a driven LED chip, which can reduce the number of external driving devices and simplify the wiring layout. The conductive arm 110 may be a direct wiring conductor, or it may include structural components for supporting or reinforcing the conductive line.

[0046] The structural arm 120 is mainly used to connect and position two conductive arms 110, maintaining a set spacing between the two conductive arms 110 within the same grid unit 100, and providing initial structural reinforcement to the grid unit 100. The structural arm 120 has higher bending or tensile strength than flexible conductors, and can be made of materials such as plastic rods, metal rods, fiberglass rods, carbon fiber rods, profile strips, injection-molded connecting strips, rigid rubber strips, or composite material support strips. The structural arm 120 can be connected to the conductive arm 110 through integral molding, bonding, welding, snap-fitting, riveting, screwing, or embedding. Since the LED light-emitting element 30 and its feed lines and signal lines are mainly concentrated on the conductive arm 110, the structural arm 120 can be configured as a non-conductive load-bearing arm without feed lines and signal lines, thereby reducing the number of conductive materials, insulation treatments, and wiring connection points, and lowering weight and manufacturing costs.

[0047] In the same row of grid cells 100, the conductive arms 110 on the same side of each grid cell 100 can be continuously arranged along the row direction, or they can be connected sequentially by means of welding, plugging, snapping, or fasteners. The row line 10 includes continuously arranged or sequentially connected conductive arms 110. Multiple LED light emitters 30 are equidistantly arranged along the extension direction of the continuously arranged or sequentially connected conductive arms 110 to facilitate the formation of uniform pixel spacing. The spacing between adjacent conductive arms 110 can also be set to be equal to obtain a regular grid arrangement and a stable display effect. The LED light emitters 30 can be set at the intersection of the row line 10 and the column line 20, or they can be set at non-intersection points according to the display design requirements.

[0048] Example 2

[0049] Please refer to Figures 3 to 5 The main difference between this embodiment and Embodiment 1 is that the grid-shaped display device further includes a reinforcing structure 40. The reinforcing structure 40 is provided corresponding to the grid unit 100 and is fixedly connected to and supports the conductive arm 110 and the structural arm 120. It is used to maintain the overall shape of the grid unit 100 and prevent the conductive arm 110 and the structural arm 120 from spreading out, twisting or excessively deforming during transportation, installation or when subjected to wind load.

[0050] For each grid cell 100, the reinforcing structure 40 has a second ventilation gap 410 connected to the first ventilation gap 130. Therefore, while improving the stability of the grid, air can still pass through the grid cell 100, avoiding the formation of a large-area closed windward surface. This reinforcing structure 40 is equivalent to providing a second reinforcement to the grid structure, making it suitable for the suspension and long-term use of outdoor high-altitude flying screens.

[0051] In one form, see Figure 3The reinforcing structure 40 can be at least one of the following: a membrane support layer, a mesh support layer, a frame structure, or a rib structure, such as a transparent membrane, a perforated membrane, a mesh fabric, a flexible base membrane, a frame, or a reinforcing rib. The reinforcing structure 40 can be fixed and supported on the bottom surface of the row lines 10 and column lines 20 by means of adhesive or pressing, so that the grid unit 100 is not easily scattered or deformed during installation and wind exposure.

[0052] In another form, see Figure 4 The reinforcing structure 40 includes a membrane-like reinforcing layer that completely covers the row lines 10 and column lines 20, thus limiting the separation of the row lines 10 and column lines 20 by the membrane-like reinforcing layer. (See also...) Figure 5 The film-like reinforcing layer can also cover the LED light source 30 to fix and protect the LED light source 30.

[0053] The membrane-like reinforcing layer can have clearance holes, openings, or hollow areas at positions corresponding to the first ventilation gap 130 to form a second ventilation gap 410 connected to the first ventilation gap 130; the membrane-like reinforcing layer can also completely cover the row lines 10 and column lines 20, naturally forming a through-hole-like second ventilation gap 410. Therefore, even if the reinforcing structure 40 adopts a membrane-like covering form, the grid-like display device still retains ventilation gaps as a whole, avoiding the formation of a large-area closed windward surface.

[0054] Example 3

[0055] Please refer to Figure 6 The main difference between this embodiment and Embodiment 1 is that the conductive arm 110 is further provided with a structural reinforcement 111. The structural reinforcement 111 can extend along a local area of ​​the conductive arm 110, and the structural arm 120 and the structural reinforcement 111 are connected as a whole. By setting the structural arm 120 and the structural reinforcement 111 as a whole, the conductive arm 110 obtains local structural support while carrying the LED light-emitting element 30 and the circuit. The positioning effect of the structural arm 120 on the grid unit 100 is also more stable. This embodiment is particularly suitable for application scenarios with long single-row grids, a large number of LED light-emitting elements 30, or installation positions subject to large wind loads.

[0056] Example 4

[0057] Please refer to Figure 7 The main difference between this embodiment and Embodiment 3 is that the grid-shaped display device further includes a reinforcing structure 40. The reinforcing structure 40 is supported at the bottom of the overall structure formed by the connection between the structural arm 120 and the structural reinforcement member 111, so that the grid unit 100 simultaneously has the first reinforcement formed by the structural arm 120 and the second reinforcement formed by the reinforcing structure 40.

[0058] In this embodiment, the reinforcing structure 40 still includes a second ventilation gap 410 that communicates with the first ventilation gap 130. Therefore, the device achieves higher overall stability while maintaining good ventilation performance. This structure balances the strength required for high-altitude installation, the lightweight requirements of the display device, and the wind resistance needed for outdoor use.

[0059] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A grid-like display device, comprising a grid formed by a plurality of intersecting row lines and column lines, and LED light-emitting elements disposed in the grid, characterized in that, It includes at least one row of grid, wherein each grid cell includes: Two opposing conductive arms, each with an LED light-emitting element mounted thereon, and power supply lines and signal lines connecting the LED light-emitting elements; and Two opposing structural arms are fixedly connected to the two opposing conductive arms, which are used to position the conductive arms and maintain the distance between the two opposing conductive arms; The two opposing conductive arms and the two opposing structural arms together define the first ventilation gap.

2. The grid-shaped display device according to claim 1, characterized in that, It also includes a reinforcing structure, in which the reinforcing structure is fixedly connected to the conductive arm and the structural arm for each grid cell to maintain the structural stability of the grid cell, and the reinforcing structure has a second ventilation gap that communicates with the first ventilation gap.

3. The grid-shaped display device according to claim 2, characterized in that, The reinforcing structure is at least one of a membrane support layer, a mesh support layer, a frame structure, or a rib structure. The reinforcing structure is fixed and supported at the bottom of the row lines and the column lines to limit the row lines and the column lines from spreading out.

4. A grid-shaped display device according to claim 2, characterized in that, The reinforcing structure is a membrane-like reinforcing layer that completely covers the row lines and column lines to prevent them from spreading out.

5. A grid-shaped display device according to claim 1, characterized in that, For the same row of grid cells, the conductive arms on the same side of each grid cell are continuously arranged or sequentially connected along the row direction, and the row line includes the conductive arms that are continuously arranged or sequentially connected; the multiple LED light emitters are equidistantly arranged along the extension direction of the conductive arms that are continuously arranged or sequentially connected.

6. A grid-shaped display device according to claim 1, characterized in that, The spacing between two adjacent conductive arms is equal.

7. A grid-shaped display device according to claim 1, characterized in that, The LED light emitters are located at the intersections and / or non-intersections of the grid; the LED light emitters are driven LED beads.

8. A grid-shaped display device according to claim 1, characterized in that, The structural arm has a certain rigidity and is connected to the conductive arm to reinforce the grid cell.

9. A grid-shaped display device according to claim 1, characterized in that, The structural arm is a non-conductive load-bearing arm that eliminates the need for the power supply line and the signal line.

10. A grid-shaped display device according to claim 1, characterized in that, The conductive arm is also provided with a structural reinforcement, which is connected to the adjacent structural arm as a whole.

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