A large display screen based on LED

Abstract

The present invention provides a large display screen based on LED, which relates to the field of LED display control technology. A heat dissipation adjustment channel is provided on one side of the frame, a heat dissipation assembly is installed inside the heat dissipation adjustment channel, a heat dissipation box is screwed on the outside of the bottom of the heat dissipation adjustment channel, a detection channel is integrally formed on the other side of the frame, a brightness detection module is inserted inside the detection channel, a wiring board is welded on the side of the detection channel, and a plurality of independent LED light strips are inserted inside the frame. The large display screen based on LED embeds a plurality of independent LED light strips into the frame in the form of plug-in for combined use, and can flexibly control the size required for use. After the detection is completed, the brightness of the LED lamp beads is controlled so that the final display brightness of each independent LED light strip remains consistent, thereby improving the final display effect. The heat dissipation airflow is concentrated on the independent LED light strips in use, thereby improving the heat dissipation effect.

Description

Technical Field

[0001] The invention relates to the technical field of LED display control, in particular to a large display screen based on LED. Background Art

[0002] LED display screen is a display method that controls semiconductor light-emitting diodes. It is composed of multiple semiconductor light-emitting diode pixels arranged evenly. It uses different materials to make LED pixels of different colors to display various information such as text and graphics. Some huge LED display screens use larger LED lamp beads to emit light to display information content. And the light emission of each LED lamp bead is controlled by the controller.

[0003] In the prior art, when expanding the LED display screen, the entire screen needs to be spliced, which makes it impossible to flexibly disassemble and expand the display area, and it is also impossible to quickly detect the faulty area. When the brightness of some display areas changes, it is difficult to directly observe it, and there is a lack of corresponding detection standards, resulting in a decrease in display effect. If the internal light is detected by installing a photosensitive sensor, multiple photosensitive sensors need to be installed according to the size of the display screen, which leads to high equipment costs and is difficult to apply to large LED display screens. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a large LED display screen to solve the problems raised in the above-mentioned background technology. The display control of the present invention is more flexible, and can quickly check and detect the brightness of each LED lamp bead, thereby reducing the equipment cost, and can provide targeted heat dissipation and ensure that only the LED light strips in the display area are provided with heat dissipation treatment.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a large display screen based on LED, including a large screen body, the large screen body including a frame, an independent LED light strip, a brightness detection module and a heat dissipation component, a heat dissipation adjustment channel is provided on one side of the frame, a heat dissipation adjustment channel is installed inside the heat dissipation adjustment channel, a heat dissipation box is screwed on the outside of the bottom of the heat dissipation adjustment channel, a detection channel is integrally formed on the other side of the frame, a brightness detection module is inserted into the detection channel, a terminal block is welded on the side of the detection channel, a plurality of independent LED light strips are inserted into the interior of the frame, and a plurality of LED lamp beads are welded on the surface of each independent LED light strip, a plug-in column is integrally formed at the end of the independent LED light strip, the plug-in column is embedded from the surface of the heat dissipation adjustment channel to the inside, and the end of the plug-in column is against the surface of the heat dissipation component, the surface of the frame is covered with glass, and one end of each of the independent LED light strips is pressed against the surface of the detection channel.

[0006] Furthermore, the independent LED light strip includes a light board, LED lamp beads and plug-in columns, one end of the light board is integrated with a back panel, the other end of the back panel is integrated with a plug-in board, the other end of the light board is integrated with a plug-in column and a positioning column, a first docking hole is provided on the top of the surface of the plug-in column, the side of the plug-in column is integrated with a rear baffle, and a limiting baffle strip is mounted on the side of the light board.

[0007] Furthermore, the LED lamp beads are welded on the surface of the lamp board, and the spacing between each LED lamp bead is the same. Air inlet holes are opened on the top and bottom of the lamp board, and the interior of the lamp board is a hollow structure.

[0008] Furthermore, the interior of the first docking hole is connected to each air inlet portion after passing through the plug-in column and the light board, the number of the positioning columns is two, an end plate is integrally formed at one end of the outer side of the plug-in board, a signal line is plugged in the middle of the end plate, and the independent LED light strip is electrically connected to the wiring board part through the signal line.

[0009] Furthermore, the heat dissipation assembly includes a first motor, a drive shaft and a heat dissipation pipe, the top of the drive shaft is inserted into the output end of the first motor, the surface of the drive shaft is sleeved with a top-layer docking assembly, a middle-layer docking assembly and a bottom-layer docking assembly, the bottom end of the drive shaft is sleeved with a docking bearing, one end of the heat dissipation pipe is inserted into the interior of the docking bearing, and the other end of the heat dissipation pipe is inserted into the interior of the heat dissipation box, and a heat dissipation fan is installed on the surface of the heat dissipation box.

[0010] Furthermore, the top-layer docking assembly, the middle-layer docking assembly and the bottom-layer docking assembly all include a docking plate, a rotating ridge and a fixed ridge. The fixed ridge is welded on the surface of the drive shaft, and the rotating ridge is welded at the edge of the top of the docking plate. A spring is connected between the rotating ridge and the fixed ridge.

[0011] Furthermore, a second docking hole is provided at the bottom of the docking plate, a partition is welded on the inner wall of the heat dissipation regulating channel, the drive shaft passes downward from the middle of each partition in turn, a notch is provided on one side of the partition, and the bottom of the docking plate is pressed against the surface of the partition or the plug-in column.

[0012] Furthermore, the side of each partition is aligned with the corresponding rear baffle part, the surface of the drive shaft is provided with a hollow groove, the side of the hollow groove is provided with a rotating ring, the rotating ring is integrally formed with the docking plate, and the interior of the rotating ring is connected to the internal cavity of the docking plate.

[0013] Furthermore, the brightness detection module includes a second motor and a detection board, a screw rod is inserted into the output end of the second motor, a threaded sleeve is welded to the rear end of the detection board, the screw rod passes through the inside of the threaded sleeve, and a photosensitive detection unit is embedded on the inner wall of the detection board.

[0014] Furthermore, the rear end of the detection plate is arranged as a concave structure, and the detection plate is inserted into the surface of each back plate in sequence after vertically moving along the screw rod.

[0015] Beneficial effects of the present invention:

[0016] 1. The LED-based display screen embeds multiple independent LED light strips into the interior of the frame in the form of plug-in, and combines them into a large screen for display. If any independent LED light strip or LED lamp beads on the surface are damaged, only the independent LED light strip can be replaced, which reduces the cost of subsequent maintenance and repair, and can also flexibly control the size required for use.

[0017] 2. The LED-based display screen installs each independent LED light strip into the interior of the frame in sequence by plugging it in. Therefore, the brightness detection module on one side of the interior of the frame can be used to detect the brightness of the LED lamp beads on the surface of each installed independent LED light strip during installation, and the brightness of the LED lamp beads can be controlled after the detection is completed, so that the final display brightness of each independent LED light strip remains consistent, thereby improving the final display effect.

[0018] 3. The LED-based display screen is provided with a heat dissipation component at the rear end. Through the docking components at different levels on the heat dissipation component, targeted heat dissipation effect can be provided according to the use status of different grouped light strips inside the frame, and then the unused light strips will not be provided with heat dissipation treatment, so that the heat dissipation airflow is concentrated on the independent LED light strips in use, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the appearance of a large LED display screen according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the independent LED light strip part of the present invention;

[0021] Figure 3 for Figure 2 A magnified image of area A;

[0022] Figure 4 This is a structural diagram of the interior of the heat dissipation assembly of the present invention;

[0023] Figure 5 This is a disassembled diagram of the top-layer docking component part of the heat dissipation component of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the brightness detection module part of the present invention;

[0025] In the figure: 1. frame; 2. wiring board; 3. independent LED light strip; 4. brightness detection module; 5. heat dissipation assembly; 6. heat dissipation box; 7. light board; 8. LED lamp beads; 9. back plate; 10. plug board; 11. limit stop bar; 12. air inlet; 13. plug column; 14. positioning column; 15. first docking hole; 16. rear baffle; 17. first motor; 18. drive shaft; 19. top docking assembly; 20. middle docking assembly ; 21. Bottom docking assembly; 22. Docking bearing; 23. Heat dissipation duct; 24. End plate; 25. Hollow groove; 26. Rotating ring; 27. Docking plate; 28. Rotating convex strip; 29. ​​Second docking hole; 30. Fixed convex strip; 31. Spring; 32. Second motor; 33. Screw rod; 34. Threaded sleeve; 35. Detection plate; 36. Photosensitive detection unit; 37. Partition; 38. Heat dissipation adjustment channel; 39. Detection channel. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] See also Figures 1 to 6 The present invention provides the following technical solutions: A large display screen based on LED, comprising a large screen body, the large screen body comprising a frame 1, an independent LED light strip 3, a brightness detection module 4 and a heat dissipation component 5, a heat dissipation adjustment channel 38 is provided on one side of the frame 1, a heat dissipation adjustment channel 38 is installed inside the heat dissipation adjustment channel 38, a heat dissipation box 6 is screwed on the outside of the bottom of the heat dissipation adjustment channel 38, a detection channel 39 is integrally formed on the other side of the frame 1, a brightness detection module 4 is inserted inside the detection channel 39, a terminal board 2 is welded on the side of the detection channel 39, a plurality of independent LED light strips 3 are inserted inside the frame 1, and a plurality of LED lamp beads 8 are welded on the surface of each independent LED light strip 3, a plug-in column 13 is integrally formed at the end of the independent LED light strip 3, the plug-in column 13 is embedded from the surface of the heat dissipation adjustment channel 38 into the interior, and the end of the plug-in column 13 is against the surface of the heat dissipation component 5, the surface of the frame 1 is covered with glass, and one end of each of the independent LED light strips 3 is pressed on the surface of the detection channel 39.

[0028] The LED-based display screen modularizes each independent LED light strip 3 and controls them uniformly through an external control system, so as to adjust the picture information that needs to be displayed in the end according to the number of independent LED light strips 3 built and used during actual installation. During installation, each independent LED light strip 3 is inserted into the interior from the side of the frame 1 in turn, and after the surface of the frame 1 is covered with a glass plate, a sealing effect can be provided for each independent LED light strip 3 inside when the installation of the independent LED light strip 3 is completed, and each independent LED light strip 3 will directly rest against the terminal heat dissipation component 5 after being inserted into the interior of the frame 1, and the entire independent large screen is divided into a plurality of display areas through an external control system. In this embodiment, Figure 1 As shown, it is divided into three independent display areas. Therefore, in the heat dissipation component 5, the top layer, the top two layers, and all three layers of the display area can be subjected to targeted heat dissipation treatment by controlling the rotation angle. This improves the utilization rate of the heat dissipation system. At the same time, during installation, the actual brightness of the LED lamp beads 8 on each inserted independent LED light strip 3 can be calibrated in cooperation with the brightness detection module 4 during the installation process of each independent LED light strip 3 to ensure that the display effect after the final installation can meet expectations.

[0029] In this embodiment, the independent LED light strip 3 includes a light board 7, LED lamp beads 8 and a plug-in column 13. One end of the light board 7 is integrally formed with a back plate 9, and the other end of the back plate 9 is integrally formed with a plug-in plate 10. The other end of the light board 7 is integrally formed with a plug-in column 13 and a positioning column 14. The top of the surface of the plug-in column 13 is provided with a first docking hole 15. The side of the plug-in column 13 is integrally formed with a rear baffle 16. The side of the light board 7 is mounted with a limited stop bar 11. The LED lamp beads 8 are welded on the surface of the light board 7, and the spacing between each LED lamp bead 8 is the same. The top and bottom of the light board 7 are provided with air inlet holes 12, and the interior of the light board 7 is a hollow structure. The interior of the first docking hole 15 passes through the plug-in column 13 and the light board 7 and is partially connected to each air inlet 12. The number of the positioning columns 14 is two. An end plate 24 is integrally formed at one end of the outer side of the plug-in board 10. A signal line is plugged in the middle of the end plate 24, and the independent LED light strip 3 is partially electrically connected to the wiring board 2 through the signal line. Multiple independent LED light strips 3 are embedded into the interior of the frame 1 in the form of plug-in, and combined to form a large screen for display and use. If any independent LED light strip 3 or the LED lamp beads 8 on the surface are damaged, only the independent LED light strip 3 can be replaced, which reduces the cost of subsequent maintenance and repair, and can also flexibly control the size required for use.

[0030] Specifically, when each independent LED light strip 3 is installed, it is inserted into the interior of the frame 1 from the outside of the detection channel 39, and pushed toward the rear end along the middle of the frame 1 until the end of the independent LED light strip 3 is against the heat dissipation adjustment channel 38, and finally the plug-in column 13 and the positioning column 14 on the independent LED light strip 3 are embedded into the surface of the heat dissipation adjustment channel 38, and the heat dissipation adjustment channel 38 and the detection channel 39 are used to provide support for both ends of the independent LED light strip 3, thereby realizing the installation process of the independent LED light strip 3. After the installation is completed, the end plate 24 part is locked and connected with the outer surface of the detection channel 39 with screws, and the signal line is used to connect the plug-in hole on the end plate 24 of the independent LED light strip 3 with the port on the terminal board 2 for display signal transmission, and the controller on the back of the frame 1 is used to control and adjust the display signal together.

[0031] In this embodiment, the heat dissipation assembly 5 includes a first motor 17, a drive shaft 18 and a heat dissipation pipe 23. The top of the drive shaft 18 is inserted into the output end of the first motor 17. The surface of the drive shaft 18 is sleeved with a top-layer docking assembly 19, a middle-layer docking assembly 20 and a bottom-layer docking assembly 21. The bottom end of the drive shaft 18 is sleeved with a docking bearing 22. One end of the heat dissipation pipe 23 is inserted into the interior of the docking bearing 22, and the other end of the heat dissipation pipe 23 is inserted into the interior of the heat dissipation box 6. A heat dissipation fan is installed on the surface of the heat dissipation box 6. The top-layer docking assembly 19, the middle-layer docking assembly 20 and the bottom-layer docking assembly 21 all include a docking plate 27, a rotating ridge 28 and a fixed ridge 30. The fixed ridge 30 is welded to the surface of the drive shaft 18. The rotating ridge 28 is welded to the edge of the top of the docking plate 27. A spring 31 is connected between the rotating ridge 28 and the fixed ridge 30. A second docking hole 29 is provided at the bottom of the docking plate 27. A partition 37 is welded on the inner wall of the heat dissipation regulating channel 38. The drive shaft 18 passes downward from the middle of each partition 37 in turn. A notch is provided on one side of the partition 37. The bottom of the docking plate 27 is pressed on the surface of the partition 37 or the plug-in column 13. The side of each partition 37 is aligned with the corresponding rear baffle 16. A hollow groove 25 is provided on the surface of the drive shaft 18. A rotating collar 26 is sleeved on the side of the hollow groove 25. The rotating collar 26 is integrally formed with the docking plate 27, and the interior of the rotating collar 26 is connected to the internal cavity of the docking plate 27. A heat dissipation component 5 is provided at the rear end. Through the docking components at different levels on the heat dissipation component 5, a targeted heat dissipation effect can be provided according to the use status of the different grouped light strips inside the frame 1, and then the unused light strip part is not provided with heat dissipation treatment, so that the heat dissipation airflow is concentrated on the independent LED light strip 3 in the use state, thereby improving the heat dissipation effect.

[0032] Specifically, when only the upper display area inside the frame 1 needs to be used, at this time, only each independent LED light strip 3 on the top layer needs to be heat-dissipated, so the first motor 17 is started, and each upper docking assembly is driven to rotate through the driving shaft 18 until the docking plate 27 on each upper docking assembly is rotated to press on the top of the plug-in column 13, and the first docking hole 15 and the second docking hole 29 are aligned. At this time, the heat dissipation image box at the bottom is started, and the hot air flow around the light board 7 can be drawn in along the air inlet 12, and finally passes through the first docking hole 15 on the plug-in column 13 into the second docking hole 29, and then enters along the docking plate 27. Inside the drive shaft 18, the heat dissipation effect is achieved. When the display areas of the two upper layers need to be cooled at the same time, after the docking with the upper docking assembly is completed, the first motor 17 can be further controlled to run, driving the middle docking assembly 20 to rotate to the docking state. At this time, the docking plate 27 in the upper docking assembly will be against the surface of the rear baffle 16, causing the rotating ring 26 to rotate synchronously relative to the drive shaft 18, so that it always maintains the docking state with the plug-in column 13. At this time, the spring 31 is in a stretched state until the middle docking assembly 20 also completes the docking process, and the docking and heat dissipation process of the top two layers can be realized at the same time.

[0033] In this embodiment, the brightness detection module 4 includes a second motor 32 and a detection board 35. The output end of the second motor 32 is plugged with a screw 33. The rear end of the detection board 35 is welded with a threaded sleeve 34. The screw 33 passes through the inside of the threaded sleeve 34. The inner wall of the detection board 35 is embedded with a photosensitive detection unit 36. The rear end of the detection board 35 is set as a concave structure, and the detection board 35 is inserted into the surface of each back plate 9 in turn after vertical movement along the screw 33. Each independent LED light strip 3 is installed into the interior of the frame 1 in turn by plugging. Therefore, the brightness detection module 4 on one side of the interior of the frame 1 can detect the brightness of the LED lamp beads 8 on the surface of each installed independent LED light strip 3 during installation, and control the brightness of the LED lamp beads 8 after the detection is completed, so that the final display brightness of each independent LED light strip 3 remains consistent, thereby improving the final display effect.

[0034] Specifically, after starting the second motor 32, the detection plate 35 can be controlled to move up and down through the screw rod 33 and the threaded sleeve 34. Since the two sides of the detection plate 35 are always blocked by the inner wall of the detection channel 39, the vertical lifting movement can be maintained at all times. Based on the above process, after the detection plate 35 is moved to the insertion range of the independent LED light strip 3 of the first layer, the independent LED light strip 3 is pushed into the inside of the detection sleeve, and each LED lamp bead 8 can be passed through the inner side of the detection plate 35 in turn. At this time, the brightness of each LED lamp bead 8 passing through can be detected by the photosensitive detection unit 36, and the LED lamp bead 8 that is too bright or too dark can be adjusted in time to ensure that the brightness of each LED lamp bead 8 is balanced and uniform, until the independent LED light strip 3 is completely pushed in. At this time, the detection plate 35 will be embedded in the surface of the back plate 9, and the second motor 32 can be started again to move the detection plate 35 down to the insertion range of the second layer of independent LED light strip 3, and the above process is repeated until each independent LED light strip 3 is detected.

[0035] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A large display screen based on LED, comprising a large screen body, characterized in that: The large screen body comprises a frame (1), an independent LED light strip (3), a brightness detection module (4) and a heat dissipation component (5); a heat dissipation adjustment channel (38) is arranged on one side of the frame (1); a heat dissipation component (5) is installed inside the heat dissipation adjustment channel (38); a heat dissipation box (6) is screwed to the outside of the bottom of the heat dissipation adjustment channel (38); a detection channel (39) is integrally formed on the other side of the frame (1); a brightness detection module (4) is inserted inside the detection channel (39); a wiring board (2) is welded to the side of the detection channel (39); a plurality of independent LED light strips (3) are inserted inside the frame (1), and a plurality of LED light strips (3) are welded on the surface of each independent LED light strip (3). D lamp beads (8), the end of the independent LED light strip (3) is integrally formed with a plug-in column (13), the plug-in column (13) is embedded from the surface of the heat dissipation adjustment channel (38) into the interior, and the end of the plug-in column (13) is against the surface of the heat dissipation component (5), the surface of the frame (1) is covered with glass, one end of each independent LED light strip (3) is pressed against the surface of the detection channel (39), the independent LED light strip (3) comprises a light board (7), LED lamp beads (8) and a plug-in column (13), one end of the light board (7) is integrally formed with a back board (9), the other end of the back board (9) is integrally formed with a plug-in board (10), and the other end of the light board (7) is integrally formed with a plug-in column (13). ) and a positioning column (14), a first docking hole (15) is provided on the top of the surface of the plug-in column (13), a rear baffle (16) is integrally formed on the side of the plug-in column (13), a limit stop strip (11) is mounted on the side of the light panel (7), the heat dissipation component (5) comprises a first motor (17), a drive shaft (18) and a heat dissipation pipe (23), the top of the drive shaft (18) is inserted into the output end of the first motor (17), the surface of the drive shaft (18) is sleeved with a top-layer docking component (19), a middle-layer docking component (20) and a bottom-layer docking component (21), the bottom end of the drive shaft (18) is sleeved with a docking bearing (22), and one end of the heat dissipation pipe (23) is inserted into the docking bearing (22). ), the other end of the heat dissipation pipe (23) is inserted into the interior of the heat dissipation box (6), a heat dissipation fan is installed on the surface of the heat dissipation box (6), the top-layer docking assembly (19), the middle-layer docking assembly (20) and the bottom-layer docking assembly (21) all include a docking plate (27), a rotating convex strip (28) and a fixed convex strip (30), the fixed convex strip (30) is welded to the surface of the drive shaft (18), the rotating convex strip (28) is welded to the edge of the top of the docking plate (27), a spring (31) is connected between the rotating convex strip (28) and the fixed convex strip (30), a second docking hole (29) is opened at the bottom of the docking plate (27), and a partition plate (37) is welded on the inner wall of the heat dissipation regulating channel (38),The drive shaft (18) passes downward from the middle of each partition (37) in sequence. A notch is provided on one side of the partition (37). The bottom of the docking plate (27) is pressed against the surface of the partition (37) or the plug-in column (13). The side edge of each partition (37) is aligned with the corresponding rear baffle (16) portion. A hollow groove (25) is provided on the surface of the drive shaft (18). A rotating collar (26) is sleeved on the side edge of the hollow groove (25). The rotating collar (26) and the docking plate (27) are integrally formed, and the interior of the rotating collar (26) is in contact with the docking plate. (27) are connected to each other, the brightness detection module (4) comprises a second motor (32) and a detection board (35), the output end of the second motor (32) is plugged with a screw rod (33), the rear end of the detection board (35) is welded with a threaded sleeve (34), the screw rod (33) passes through the inside of the threaded sleeve (34), a photosensitive detection unit (36) is embedded on the inner wall of the detection board (35), the rear end of the detection board (35) is set as a concave structure, and the detection board (35) is inserted into the surface of each back plate (9) in sequence after vertically moving along the screw rod (33).

2. The LED-based display screen according to claim 1, characterized in that: The LED lamp beads (8) are welded to the surface of the lamp board (7), and the spacing between each LED lamp bead (8) is the same; air inlet holes (12) are provided at the top and bottom of the lamp board (7); and the interior of the lamp board (7) is a hollow structure.

3. The LED-based display screen according to claim 2, characterized in that: The interior of the first docking hole (15) passes through the plug-in column (13) and the light board (7) and is partially connected to each air inlet hole (12); the number of the positioning columns (14) is two; an end plate (24) is integrally formed at one end of the outer side of the plug-in board (10); a signal line is plugged in the middle of the end plate (24); and the independent LED light strip (3) is partially electrically connected to the wiring board (2) via the signal line.

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