A large-size transparent lattice screen

Abstract

The application discloses a large-size transparent grid screen which can be cut, comprising an outer frame, a power module arranged on one side of the outer frame, a plurality of LED modules installed in the outer frame, and a connecting component arranged between two adjacent LED modules; the power module is connected with an external controller, and the power module is connected with the LED modules. A driving system of the transparent grid screen is used in the above transparent grid screen, comprising a display array part and a driving signal part; a power PCB is arranged between the display array part and the driving signal part; the display array part is composed of LEDs arranged on the circuit board in a certain order or pattern; the driving signal part comprises a controller and a transformer connected with the controller. The application adopts a separate module strip to supply power for the transparent grid screen, the module strip is internally provided with low-voltage and high-power VCC and GND wires, and can be used for display modules with DC 5V and above.

Description

Technical Field

[0001] This invention relates to the field of transparent grid screens, and in particular to a large-size, cuttable transparent grid screen. Background Technology

[0002] LED displays are developing rapidly, and their applications in conference rooms, multimedia classrooms, stage performances, radio studios, and exhibitions are increasing. LED transparent grid displays are a type of LED screen composed of LED strips arranged in a grid pattern; also called LED strip screens, they are a type of LED display. LED transparent grid displays overcome many limitations imposed by conventional LED displays on building structures and walls, making projects more flexible and offering more choices. They are mainly used on outdoor walls, glass curtain walls, and building rooftops. Furthermore, due to their grid structure, LED transparent grid displays are also permeable to air, exhibiting extremely strong wind load capacity.

[0003] Existing transparent screens, especially LED transparent grid displays, are mostly fixed in width and length, about 500mm. They are assembled from two modules, with a power supply and control box of about 70-80mm installed in the middle of the fixed length. This seriously affects the transparency and aesthetics of the assembled screen, and it cannot be spliced ​​and assembled to any length. After a long splicing, the brightness of the entire display is inconsistent. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a large-size, cuttable transparent grid screen, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention discloses a large-size, cuttable transparent grid screen, comprising: an outer frame; a power module disposed on one side of the outer frame; multiple LED modules installed within the outer frame, wherein a connecting component is provided between two adjacent LED modules; the power module is connected to an external controller and the power module is connected to the LED modules.

[0007] A further improved technical solution is that the power module includes a power box installed inside the outer frame, and a hub circuit board and a display circuit board are sequentially arranged between the power box and the LED module.

[0008] A further improved technical solution includes a terminal block and a transformer inside the power supply box; the transformer and the terminal block are connected to an external power source, and the terminal block is connected to a hub circuit board via a connecting wire; the hub circuit board is connected to the display circuit board via a connecting wire.

[0009] A further improved technical solution is that the LED module includes a transparent plate disposed within the outer frame and a circuit board corresponding to the transparent plate. A plurality of LEDs are provided on one side of the circuit board facing the transparent plate, and a cutout area is provided between adjacent circuit boards.

[0010] A further improved technical solution is that the LED is composed of multiple LED groups connected together, and all LED groups are connected to the same hub circuit board and display circuit board.

[0011] A further improved technical solution is that the connecting component includes a connecting plate, which is connected by welding or by a connector.

[0012] In a further improved technical solution, the connector uses a transparent acrylic sheet and screws; the adjacent circuit boards are connected by the transparent acrylic sheet and screws.

[0013] The present invention also provides a driving system for a transparent grid screen, used in the aforementioned transparent grid screen; the driving system includes a display array section and a driving signal section; a power PCB is arranged between the display array section and the driving signal section; the display array section consists of LEDs arranged on the circuit board in a certain order or pattern; the driving signal section includes a controller and a transformer connected to the controller; the controller is connected to an IC array, and the IC array is connected to the display array section.

[0014] A further improved technical solution is that the display array includes multiple display LED groups composed of LEDs; the IC array includes multiple driver IC rows and columns, with each driver IC row and column corresponding to one display LED group.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0016] This invention provides a large-size, cuttable transparent grid screen, the core of which lies in constructing a brand-new display module architecture. This architecture consists of an outer frame, multiple LED modules installed within the outer frame, and a power module located on one side of the outer frame.

[0017] One of the core improvements of this invention lies in the fact that the power module includes a strip-shaped hub circuit board independent of the LED module's display circuit board. This hub circuit board differs fundamentally from existing power control boxes or integrated driver circuit boards: it does not contain any driver integrated circuits (ICs), control modules, or voltage conversion circuits; it only has large-section, low-impedance VCC (positive power supply) and GND (negative power supply) conductive lines. This "passive" design has significant advantages: First, due to the absence of chip heating and complex circuit layout limitations, the power board can be made of thicker copper foil or high-conductivity materials, capable of carrying ultra-high currents that traditional wires cannot provide, effectively solving the voltage drop problem in low-voltage DC transmission for ultra-long modules (e.g., single-sided splicing length can reach 2400mm), ensuring uniform brightness across the entire screen. Second, this structure provides crucial structural support for the module.

[0018] The hub circuit board extends along the length of the LED module and is connected to the display circuit board at approximately a 90° angle, together forming a stable T-shaped cross-section structure. In this structure, the hub circuit board, due to its thickness and material strength, becomes the main load-bearing component of the entire display unit. The unexpected technical effect of this design is that it directly replaces the die-cast aluminum alloy housing or reinforcing frame, which is indispensable in traditional transparent grille screens. While meeting or even exceeding the structural strength of traditional products, it significantly reduces weight, lowers material and manufacturing costs, and greatly improves the product's transparency.

[0019] Another core improvement of this invention lies in the circuit partitioning topology designed to achieve the "cuttable" function. The LED module is clearly divided into a main signal input area and a cuttable area in its circuit layout. All key driver ICs, connectors, and other active components are concentrated in the main signal input area (display column areas 1, 2, and 3). The drive signal extends to the subsequent cuttable area through a carefully designed row-column serial topology. When the user physically cuts the module along a preset cutting line according to actual installation space requirements, as long as the cutting action occurs within the cuttable area, the remaining display circuitry can still be driven and displayed correctly because its driver ICs are concentrated in the undamaged main signal input area (display column areas 1, 2, and 3), and the signal link design is intact. This design is not a simple physical cut, but rather the result of a systematic circuit layout, giving the product unprecedented on-site customization capabilities.

[0020] Furthermore, the hub circuit board and the display circuit board are electrically connected and mechanically fixed through multi-point soldering and other methods. This connection method ensures power supply stability and structural integrity. Since the hub circuit board itself is passive, it can also be physically cut to fit the display board, making it highly adaptable and further facilitating on-site installation and irregular splicing. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a front structural diagram of the present invention.

[0023] Figure 2 This is a side view of the present invention.

[0024] Figure 3 This is a schematic diagram of the power supply module of the present invention.

[0025] Figure 4 This is a schematic diagram of the connecting component of the present invention. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0027] Please see Figure 1-4 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0028] Example 1

[0029] This embodiment discloses a large-size, cuttable transparent grid screen, such as... Figure 1-4 As shown, the system includes an outer frame 1 and a power module 6 disposed on one side of the outer frame 1. The power module includes a power box installed inside the outer frame. A hub circuit board 8 and a display circuit board 9 are sequentially arranged between the power box and the LED module. The power box contains a terminal block and a transformer. The transformer and the terminal block are connected to an external power source, and the terminal block is connected to the hub circuit board 8 via connecting wires. The hub circuit board 8 is connected to the display circuit board 9 via connecting wires.

[0030] Multiple LED modules are installed inside the outer frame 1, and a connecting component is provided between two adjacent LED modules. The power supply module is connected to an external controller and is also connected to the LED modules.

[0031] The LED module includes a transparent plate 11 disposed within the outer frame and a circuit board 10 corresponding to the transparent plate 11. A plurality of LEDs 13 are disposed on one side of the circuit board 10 facing the transparent plate 11. A cutout area 12 is provided between adjacent circuit boards.

[0032] LED 13 consists of multiple LED groups connected together, and all LED groups are connected to the same hub circuit board 8 and display circuit board 9.

[0033] The connecting components include a connecting plate 14, which is connected by welding or by a connector. In this embodiment, the connector 14 uses a transparent acrylic sheet and screws. Adjacent circuit boards are connected by transparent acrylic sheets and screws.

[0034] This embodiment can also achieve the assembly of ultra-long, splicable modules. In this embodiment, the length of a single LED module is not less than 600mm, the splicing length on one side is not greater than 2400mm, and the splicing length on both sides is not greater than 4800mm.

[0035] This invention utilizes a separate LED module to power the transparent grid screen. This LED module incorporates low-voltage, high-power VCC and GND traces, suitable for LED modules operating at DC 5V and above. The LED module is made of a resin PCB circuit board or a plate-like material with a double-layer conductive material, its thickness not exceeding the width of the LED module. One side of the LED module is VCC, and the other is GND, with solder pads designed at the locations requiring power connection to the LED module. Blind vias can be fabricated for positioning on certain LED modules.

[0036] This invention uses acrylic or resin materials for the connection of the display unit modules, thus solving the problem of heavy weight of conventional grid transparent screens. Since the processing of conventional grid screens requires the use of die-cast aluminum alloy cabinet structures, this invention directly eliminates this part, reducing the manufacturing cost of the product in the processing and production process, and significantly improving the energy conservation and environmental protection of the product production process.

[0037] Example 2

[0038] A driving system for a transparent grid screen is provided, used in the transparent grid screen of Embodiment 1. The driving system includes a display array section and a driving signal section; a power PCB is disposed between the display array section and the driving signal section; the display array section consists of LEDs arranged on the PCB in a certain order or pattern; the driving signal section includes a controller and a transformer connected to the controller; the controller is connected to an IC array, which is connected to the display array section. The display array section includes multiple display LED groups composed of LEDs. The IC array includes multiple rows and columns of driving ICs, each row and column corresponding to one display LED group.

[0039] In this embodiment, the driver ICs are arranged in rows and columns, and they operate only in series row by row. The area driven by each driver IC is divided into display area columns and rows. The display LED groups in the display array include fixed areas and variable areas. The display LED groups in the fixed areas remain unchanged, while the other display column areas of the display LED groups in the variable areas can be cut off. Depending on the specifications of the display unit module, the number of LEDs that the driver IC can drive may vary, but the basic principle is the same.

[0040] The power and ground lines of the entire display board are provided using a separate power PCB, which is designed without any driver ICs or circuits.

[0041] The driving system of the present invention does not place any driver IC and circuit in the power PCB section. It is only used to provide power support to the display module section. Since the power PCB and the display unit module PCB are soldered at multiple points, the power PCB can also be arbitrarily cut according to the part cut by the display unit module. The combination method is flexible and versatile, and it is easy to use.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A large-size, cutable transparent grid screen, comprising an outer frame, multiple LED modules installed within the outer frame, and a power module disposed on one side of the outer frame, characterized in that, The LED module includes a main signal input area and a cuttable area; the power module includes a strip-shaped power board independent of the display circuit board of the LED module. The strip-shaped power board is arranged along the length of the LED module and does not have any driver ICs or circuits on it, but is only used to provide power to the display circuit board; the driver ICs of the display circuit board are centrally arranged in the main signal input area, the cuttable area is located outside the main signal input area, and the LED module is configured to be cut in the cuttable area according to usage requirements, and the cut display portion can be displayed normally; The strip-shaped power board is connected to the display circuit board and also serves as a structural support for the LED module.

2. The large-size, cuttable transparent grid screen according to claim 1, characterized in that, The strip-shaped power board is connected to the display circuit board at approximately perpendicular angles, forming a T-shaped cross-section structure.

3. A large-size, cuttable transparent grid screen according to claim 1 or 2, characterized in that, The strip-shaped power board is made of resin PCB circuit board or double-layer conductive material, and is provided with VCC power line and GND ground line, and has solder pads at the position where it is connected to the display circuit board.

4. A large-size, cuttable transparent grid screen according to claim 1, characterized in that, The power module also includes a power box, and a hub circuit board and a display circuit board are arranged sequentially between the power box and the LED module; the power box contains a terminal block and a transformer.

5. A large-size, cuttable transparent grid screen according to claim 4, characterized in that, The display circuit board has several LEDs on one side facing the transparent plate, and there are cutout areas between adjacent circuit boards.

6. A large-size, cuttable transparent grid screen according to claim 5, characterized in that, All LED modules are connected to the same hub circuit board and display circuit board.

7. A large-size, cuttable transparent grid screen according to claim 1, characterized in that, A connecting component is provided between two adjacent LED modules. The connecting component includes a connecting plate, which is connected by welding or by a connector. The connector is made of transparent acrylic sheet and screws. The adjacent circuit boards are connected by transparent acrylic sheet and screws.

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