Display screen capable of being automatically spliced and positioned

Abstract

The invention relates to the technical field of display screens, in particular to a self-splicing positioning display screen which comprises a plurality of display units and a positioning mechanism used for positioning when the display units are spliced, and each display unit comprises a plurality of lamp panel modules arranged in a rectangular shape and a control box used for controlling the lamp panel modules. The positioning mechanism comprises an infrared emission sensor and an infrared receiving sensor used for receiving signals emitted by the infrared emission sensor at the corresponding position on the adjacent display unit. The control box comprises a shell and a control panel arranged in the shell, a first connecting port is formed in one side of each lamp panel module, and a second connecting port is formed in the side, facing the lamp panel modules, of the control panel. The first connecting port and the second connecting port are matched in an inserted mode so that the lamp panel module can be electrically connected with the control box. According to the invention, each display unit can be positioned with high precision, and the problem of disordered wiring at the rear side of the display unit is solved.

Description

Technical Field

[0001] The invention relates to the technical field of display screens, and in particular to a display screen capable of self-joining and positioning. Background Art

[0002] With the continuous development of display technology, large-size, high-resolution display screens have been widely used in various application scenarios, such as commercial advertising, conference presentations, command centers, etc. In order to achieve a larger display area and higher visual effects, multiple display cabinets are usually spliced ​​into a large display screen.

[0003] However, it was found that the traditional splicing display system needs to be manually calibrated and positioned with auxiliary tools when splicing, which is prone to errors and time-consuming and laborious. It is not flexible enough when expanding and adjusting the layout. Adding or reducing display units often requires rewiring and manual position adjustment, which increases the complexity and cost of the system. In addition, the display cabinet needs to be connected by cables, which leads to messy wiring at the back of the cabinet and affects the appearance and maintenance. Summary of the invention

[0004] In order to solve the above problems in the background technology, the present invention provides a display screen capable of self-joining and positioning.

[0005] The solution adopted by the present invention to solve its technical problems is: a display screen that can be self-spliced ​​and positioned, including multiple display units and a positioning mechanism for positioning each display unit when spliced, the display unit includes a plurality of light board modules arranged in a rectangular shape and a control box for controlling each light board module, the positioning mechanism includes an infrared emitting sensor arranged at the corner end of the light board module and located on one side of the display unit, and an infrared receiving sensor arranged at the diagonal end of the infrared emitting sensor and located on the other side of the display unit for receiving signals emitted by the infrared emitting sensor at the corresponding position on the adjacent display unit; the control box includes a shell and a control board arranged in the shell, the light board module is provided with a first connection port on the side facing the control board, and the control board is provided with a second connection port with a number equal to the light board module on the side facing each light board module, the first connection port is plugged into and matched with the second connection port to achieve electrical connection between the light board module and the control box.

[0006] By adopting the above technical solution, infrared emitting sensors and infrared receiving sensors are arranged at the corners of each light board module, and the transmission characteristics of infrared signals are used to perform accurate position detection and automatic calibration. Also, by respectively arranging a first connection port and a second connection port on the light board module and the control board, and connecting them in a plug-in manner, messy external cables are avoided, making the back of the display box look neat and beautiful.

[0007] Furthermore, welding areas for welding and installing infrared transmitting sensors and infrared receiving sensors are arranged around the display unit.

[0008] By adopting the above technical solution, the infrared transmitting sensor and the infrared receiving sensor can be welded on the light board module near the four sides of the overall display unit according to specific use.

[0009] Furthermore, it also includes one or more signal sources for providing video or image signals and a controller for processing and distributing signals, and the controller connects the signal source and the display unit.

[0010] By adopting the above technical solution, the controller acts as a central processing unit, receives the video or image signal from the signal source, and processes and distributes the position information provided by the infrared transmitting sensor and the infrared receiving sensor.

[0011] Furthermore, each of the control boxes has an input interface and an output interface, the controller is electrically connected to the input interface of any one of the control boxes, and the input interfaces of the remaining control boxes are sequentially connected to the output interface of the previous control box.

[0012] By adopting the above technical solution, the positions of the infrared receiving sensor and the infrared transmitting sensor of the light board module can be switched by plugging different first connection ports into the second connection ports of the control board.

[0013] Furthermore, each of the light board modules is provided with two first connection ports, and the two first connection ports are arranged symmetrically with respect to a center line of the light board module.

[0014] By adopting the above technical solution, the positions of the infrared receiving sensor and the infrared transmitting sensor of the light board module can be adjusted.

[0015] Furthermore, the back of the shell has a plurality of heat dissipation slots, each of which penetrates the shell and is arranged in parallel in batches.

[0016] By adopting the above technical solution, the heat generated by the control board and other internal components can be quickly discharged to the external environment to keep the internal temperature of the control box within a safe operating range, thereby preventing performance degradation or hardware damage caused by overheating.

[0017] In summary, the beneficial effects of the present invention are as follows: the present invention can form an infrared emitting area or an infrared receiving area at the center of the four sides of each display unit by setting an infrared emitting sensor and an infrared receiving sensor at the corner end of the light board module near the center of the side of the display unit, and use the transmission characteristics of infrared signals to perform accurate position detection and automatic calibration, so as to significantly improve the installation efficiency of the spliced ​​display screen. And the plug-in connection between the light board module and the control box eliminates the external cable connection method, which can solve the problem of messy wiring on the rear side of the display unit module.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the structure of the display unit and the positioning mechanism of this embodiment;

[0020] Figure 2 It is a structural principle block diagram of this embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of the light board module and the control board of this embodiment;

[0022] Figure 4 This is a schematic diagram of the structure of the control board of this embodiment;

[0023] Figure 5 It is a schematic diagram of the back side of the structure of this embodiment;

[0024] Figure 6 It is a schematic front view of the structure of this embodiment.

[0025] In the figure: 1. display unit; 2. positioning mechanism; 21. infrared transmitting sensor; 22. infrared receiving sensor; 3. light board module; 31. first connection port; 32. welding area; 4. control box; 41. housing; 411. heat dissipation slot; 42. control board; 421. second connection port; 43. input interface; 44. output interface; 5. signal source; 6. controller. DETAILED DESCRIPTION

[0026] In order to make the content of the present invention more clearly understood, the present invention is further described below based on specific embodiments in conjunction with the accompanying drawings.

[0027] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0028] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] like Figures 1 to 6 As shown, a display screen capable of self-splicing and positioning, wherein the present embodiment comprises a plurality of display units 1 and a positioning mechanism 2 for positioning each display unit 1 when spliced, the display unit 1 comprises a plurality of light board modules 3 arranged in a rectangular shape and a control box 4 for controlling each light board module 3, the positioning mechanism 2 comprises an infrared emitting sensor 21 arranged at a corner end of the light board module 3 and located on one side of the display unit 1, and an infrared receiving sensor 22 arranged at a diagonal end of the infrared emitting sensor 21 and located on the other side of the display unit 1 for receiving a signal emitted by the infrared emitting sensor 21 at a corresponding position on an adjacent display unit 1; the control box 4 comprises a shell 41 and a control board 42 arranged in the shell 41, a first connection port 31 is arranged on a side of the light board module 3 facing the control board 42, and a second connection port 421 equal in number to the light board module 3 is arranged on a side of the control board 42 facing each light board module 3, so that the first connection port 31 is plugged in and matched with the second connection port 421 to realize electrical connection between the light board module 3 and the control box 4.

[0030] The display unit 1 of this embodiment is the display box described in the background technology. The attached figure shows the effect of two display units 1 being spliced ​​together, and each display unit 1 can display content independently. Each display unit 1 is composed of a plurality of light board modules 3 and a control box 4 in the box frame, wherein each light board module 3 is a rectangularly arranged LED light board, and each light board module 3 is controlled by the corresponding control box 4. In order to realize automatic splicing positioning, this embodiment integrates a positioning mechanism 2 in each display unit 1, which is composed of an infrared emitting sensor 21 and an infrared receiving sensor 22. These sensors are precisely installed at the corner ends of the light board modules 3 near the center of the four sides inside each display unit 1. Specifically, if an infrared emitting sensor 21 is installed at the corner end of the light board module 3 at the center of the upper side and the right side of a display unit 1, an infrared receiving sensor 22 is installed at the corner end of the light board module 3 at the center of the lower side and the left side. Such an arrangement forms an infrared signal emitting area on the upper side and the right side of the display unit 1, while the lower side and the left side constitute an infrared signal receiving area. When two display units 1 are close to each other and ready to be spliced, the infrared transmitting sensor 21 on one display unit 1 will send a signal to the infrared receiving sensor 22 at the corresponding position on the adjacent display unit 1. The control system calculates the relative positions between the display units 1 based on these infrared signals. As more display units 1 are spliced, the system can automatically adjust and accurately position each display unit 1 to ensure that they together form a seamless large-screen image. And by providing a first connection port 31 and a second connection port 421 on the light board module 3 and the control board 42, respectively, and connecting them in a plug-in manner, the operator only needs to insert the first connection port 31 of the light board module 3 into the corresponding second connection port 421 of the control board 42 to complete the connection without complicated wiring operations; and all connections are integrated and built-in to the outside of the display unit 1 to avoid messy external cables, so that the back of the display box looks neat and beautiful.

[0031] like Figure 1 and Figure 2 As shown, the display unit 1 of this embodiment internally includes four light board modules 3. The positioning mechanism 2 is arranged in two light board modules 3 at diagonal positions, specifically in the light board modules 3 at the upper left corner and the lower right corner, and an infrared emitting sensor 21 is installed at the lower left corner, so that the bottom edge and the left edge of the display unit 1 near the center form an infrared signal emitting area. Correspondingly, an infrared receiving sensor 22 is configured at the upper right corner of the two light board modules 3, thereby constructing an infrared signal receiving area at the top edge and the right edge of the display unit 1 near the center. It is ensured that when adjacent display units 1 are spliced, the infrared emitting sensor 21 on one unit can send a signal to the infrared receiving sensor 22 at the corresponding position on the other unit.

[0032] like Figure 1 As shown, the display unit 1 of this embodiment is provided with welding areas 32 for welding and installing the infrared emitting sensor 21 and the infrared receiving sensor 22. By providing the welding areas 32 around the display unit 1, the infrared emitting sensor 21 and the infrared receiving sensor 22 can be welded on the light board module 3 near the four sides of the overall display unit 1 according to specific use.

[0033] like Figure 2 As shown, this embodiment also includes one or more signal sources 5 for providing video or image signals and a controller 6 for processing and distributing signals, and the controller 6 connects the signal source 5 with the display unit 1. The controller 6, as a central processing unit, receives the video or image signal from the signal source 5, and processes and distributes it based on the position information provided by the infrared emission sensor 21 and the infrared receiving sensor 22. The controller 6 is divided into synchronous and asynchronous modes, wherein in the synchronous mode, the controller 6 ensures that all display units 1 receive and display the same signal frame at the same time to keep the picture completely synchronized; while in the asynchronous mode, the controller 6 allows each display unit 1 to independently receive and display different signal frames to support the display of multiple pictures or multiple contents.

[0034] like Figure 2 As shown, each control box 4 of this embodiment has an input interface 43 and an output interface 44, the controller 6 is electrically connected to the input interface 43 of any control box 4, and the input interfaces 43 of the remaining control boxes 4 are sequentially connected to the output interface 44 of the previous control box 4. That is, a display unit 1 is selected as the first level, and its input interface 43 is connected to the output end of the signal source 5 to receive the picture signal, while the input interface 43 of the display unit 1 adjacent to it is connected to the output interface 44 of the first-level display unit 1, and the subsequent display units 1 are connected in series in sequence, so that the signal can be transmitted from the first display unit 1 to the last display unit 1. A cascade connection relationship is formed, allowing the user to flexibly expand the number of screens as needed without complex wiring or additional signal distribution equipment, and helping to maintain image consistency and synchronization.

[0035] like Figure 1 and Figure 3 As shown, each light board module 3 of this embodiment is provided with two first connection ports 31, and the two first connection ports 31 are symmetrically arranged relative to the center line of the light board module 3. The positions of the infrared receiving sensor 22 and the infrared transmitting sensor 21 of the light board module 3 can be switched by plugging different first connection ports 31 into the second connection port 421 of the control board 42.

[0036] like Figure 5As shown, in this embodiment, the back of the housing 41 has a plurality of heat dissipation slots 411, and each heat dissipation slot 411 penetrates the housing 41 and is arranged in parallel in batches. The heat dissipation slots 411 allow air circulation, helping to quickly discharge the heat generated by the control board 42 and other internal components to the external environment. This helps to keep the internal temperature of the control box 4 within a safe working range and prevent performance degradation or hardware damage caused by overheating. The heat dissipation slots 411 arranged in parallel can form an orderly airflow channel to further improve the heat dissipation efficiency.

[0037] In summary, the beneficial effects of this embodiment are as follows: this embodiment sets an infrared emitting sensor 21 and an infrared receiving sensor 22 at the inner corner of the light board module 3 located near the center of the side of the display unit 1, so that an infrared emitting area or an infrared receiving area can be formed at the center of the four sides of each display unit 1, and the transmission characteristics of the infrared signal are used to perform accurate position detection and automatic calibration, so as to significantly improve the installation efficiency of the spliced ​​display screen. And the plug-in connection between the light board module 3 and the control box 4 eliminates the external cable connection mode, which can solve the problem of messy wiring on the rear side of the display unit 1 module.

[0038] The embodiments described above are only preferred implementation modes of the present invention and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and modifications made by those skilled in the art on the basis of the invention shall fall within the protection scope of the present invention.

Claims

1. A self-joining and positioning display screen, characterized in that: The device comprises a plurality of display units and a positioning mechanism for positioning each display unit when the display units are spliced, wherein the display unit comprises a plurality of light board modules arranged in a rectangular shape and a control box for controlling each light board module, and the positioning mechanism comprises an infrared emitting sensor provided at a corner end of the light board module and located on one side of the display unit, and an infrared receiving sensor provided at a diagonal end of the infrared emitting sensor and located on the other side of the display unit for receiving a signal from an infrared emitting sensor at a corresponding position on an adjacent display unit; The control box includes a shell and a control board arranged in the shell, the light board module is provided with a first connection port on the side facing the control board, and the control board is provided with a second connection port on the side facing each light board module, the number of which is equal to the light board module, and the first connection port is plugged into and matched with the second connection port to establish an electrical connection between the light board module and the control box.

2. A self-joining and positioning display screen according to claim 1, characterized in that: The display unit is provided with welding areas for welding and installing infrared transmitting sensors and infrared receiving sensors all around.

3. The self-joining and positioning display screen according to claim 1, characterized in that: It also includes one or more signal sources for providing video or image signals and a controller for processing and distributing the signals, wherein the controller connects the signal sources with the display unit.

4. The self-joining and positioning display screen according to claim 3, characterized in that: Each of the control boxes has an input interface and an output interface. The controller is electrically connected to the input interface of any one of the control boxes, and the input interfaces of the remaining control boxes are sequentially connected to the output interface of the previous control box.

5. The self-joining and positioning display screen according to claim 1, characterized in that: Each of the light board modules is provided with two first connection ports, and the two first connection ports are arranged symmetrically with respect to the center line of the light board module.

6. The self-joining and positioning display screen according to claim 1, characterized in that: The back of the shell is provided with a plurality of heat dissipation slots, each of which penetrates the shell and is arranged in parallel in batches.

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