Hollowed-out LED display unit and hollowed-out LED display screen

Abstract

The utility model relates to a hollowed-out LED display unit and an LED display screen. The hollowed-out LED display unit comprises a hollowed-out display panel and a control box. The hollowed-out display panel comprises a plurality of through holes which are evenly distributed in the hollowed-out display panel. The light-emitting units are arranged in areas among the through holes and used for displaying images or information; the pin header assembly is connected with the light-emitting unit and used for transmitting external signals and electric power to the light-emitting unit; the control box comprises an adapter plate assembly connected with the pin header assembly and is used for carrying out cascade transmission on external signals and sending the external signals to the pin header assembly. The control box is detachably connected with the hollowed-out display panel, so that front maintenance and rear maintenance of the hollowed-out LED display unit can be realized, and the operation and maintenance intensity of the hollowed-out LED display unit is reduced. Meanwhile, the adapter plate assembly arranged on the control box can achieve cascade transmission of external signals, and the structure of the LED display unit of the hollowed-out display screen is further simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a hollowed-out LED display unit and a hollowed-out LED display screen. Background Art

[0002] With the rapid development of information technology and the continuous progress of display technology, as the main carrier for information display, the performance and application fields of LED display screens are increasingly expanding. While pursuing high definition, high brightness, and low power consumption, the structural design and heat dissipation performance of LED display units, which are the unit modules of LED display screens, have also become important research directions. As an innovative design, the hollowed-out LED display unit, with its unique structure, brings the advantages of light weight and good heat dissipation performance, and has gradually attracted the attention and favor of the market.

[0003] The existing technical solution for the hollowed-out LED display unit is as follows: First, design a structural frame with a hollow structure. Then, stick lamp strips for displaying images or inlay light-emitting beads on the structural frame. Finally, connect the lamp strips or light-emitting beads to the host computer, and transmit video signals to the lamp strips or light-emitting beads through the host computer for image display.

[0004] For the hollowed-out LED display unit adopting the above technical solution, when the hollowed-out LED display unit is damaged, for the hollowed-out LED display unit with lamp strip design, the damaged lamp strip needs to be removed from the structural frame and replaced with a new one, and for the hollowed-out LED display unit with light bead inlay design, the whole unit needs to be replaced, and the removal work of the lamp strip or the removal work of the structural frame is difficult to complete in a short time. Moreover, when the area of the hollowed-out LED display screen is large enough, a large number of wire harnesses need to be connected to transmit video data to the hollowed-out LED display screen for display. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a hollowed-out LED display unit and an LED display screen, which solve the technical problems of slow replacement speed and complex connection structure of the hollowed-out LED display unit in the prior art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the main technical solutions adopted by the utility model include:

[0009] In the first aspect, an embodiment of the utility model provides a hollowed-out LED display unit, which includes: a hollowed-out display board 100 and a control box 200;

[0010] The hollowed-out display board 100 includes:

[0011] A plurality of through holes 110 are evenly distributed on the hollow display panel 100;

[0012] A plurality of light-emitting units are arranged in the area between the plurality of through holes 110 for displaying images or information;

[0013] A pin header assembly 120 is connected to the light-emitting units for transmitting external signals and power to the light-emitting units;

[0014] The control box 200 includes an adapter board assembly 230 connected to the pin header assembly 120 for transmitting external signals and sending the external signals to the hollow display panel 100.

[0015] Optionally, it includes: an insulating gasket 300 and a mounting assembly 400;

[0016] The insulating gasket 300 is arranged between the hollow display panel 100 and the control box 200, and the pin header assembly 120 passes through the insulating gasket 300 for electrically insulating and isolating the hollow display panel 100.

[0017] The mounting assembly 400 is arranged on the control box 200 and the hollow display panel 100 for fixing the hollow display panel 100 to the control box 200 so that the pin header assembly 120 is connected to the adapter board assembly 230.

[0018] Optionally, the mounting assembly 400 includes: a positioning post 410 and a positioning nut 420;

[0019] The positioning post 410 is arranged on the hollow display panel 100, and the positioning post 410 is provided with an external thread;

[0020] The positioning nut 420 is arranged on the control box 200, the size of the positioning nut 420 is the same as that of the positioning post 410, and the internal thread of the positioning nut 420 is the same as the external thread of the positioning post 410.

[0021] Optionally, the light-emitting unit includes: an LED chip, the LED chip is attached to the area between the plurality of through holes 110, and the LED chip is connected to the pin header assembly 120 through a driving chip arranged on the hollow display panel 100.

[0022] Optionally, the driving chip includes: a column scanning chip and a row scanning chip;

[0023] The column scanning chip is connected to the positive electrode of the LED chip, and the row scanning chip is connected to the negative electrode of the LED chip; or,

[0024] The column scanning chip is connected to the negative electrode of the LED chip, and the row scanning chip is connected to the positive electrode of the LED chip.

[0025] Optionally, the adapter board assembly 230 includes: a female header, a receiving card 231, and a network socket;

[0026] The receiving card 231 is connected to the pin assembly 120 through the female header, and is used to transmit external signals and power to the hollow display board 100;

[0027] The network socket includes a receiving socket 232 and a transmitting socket 233. Both the receiving socket 232 and the transmitting socket 233 are connected to the receiving card 231. The receiving socket 232 is used to receive external signals, and the transmitting socket 233 is used to transmit external signals.

[0028] Optionally, the control box 200 includes: a switching power supply 240;

[0029] The switching power supply 240 is provided with a cascade transmission end, which is used to receive external alternating current and perform cascade transmission on the external alternating current;

[0030] The switching power supply 240 is provided with an output end, which is connected to the adapter board assembly, and is used to provide direct current to the adapter board assembly 230 and the light-emitting unit after receiving external alternating current.

[0031] Optionally, the control box 200 includes: a housing 210, a cover 220, a damping hinge 250, and a lock 260;

[0032] The housing 210 is connected to the cover 220 through the damping hinge 250. The base of the damping hinge 250 is mounted on the housing 210, and the hinge arm of the damping hinge 250 is mounted on the cover 220;

[0033] The lock 260 includes a bottom lock seat 261 and a snap seat 262. The bottom lock seat 261 is mounted on the cover 220, and a keyhole is provided on the bottom lock seat 261. The snap seat 262 is mounted on the housing 210, and a tongue is provided on the snap seat 262. The tongue can be rotated and snapped into the keyhole when the cover 220 is covered on the housing 210.

[0034] Optionally, the rear side of the control box 200 is used to contact the wall surface, and the rear side of the control box 200 is provided with mounting holes 270 and heat dissipation fins 280.

[0035] In a second aspect, an embodiment of the present invention provides a hollow LED display screen, which includes:

[0036] At least one of the above-mentioned hollow LED display units, which is used to display images or information;

[0037] A host computer connected to the hollow LED display screen, which is used to send external signals to the hollow LED display screen for display.

[0038] (III) Beneficial effects

[0039] The beneficial effects of the present utility model are as follows: The hollow LED display unit of the present utility model includes a hollow display board and a control box. The display area of the hollow display board is provided with a plurality of through holes, and light-emitting units are arranged between the plurality of through holes. The hollow display board is connected to the control box through the arranged pin assembly, and a transfer board assembly for cascading external signals and sending external signals to each light-emitting unit is arranged on the control box. Compared with the prior art, the present utility model has the following beneficial effects:

[0040] First of all, the control box and the hollow display board are detachably connected through the pin assembly in the present utility model, which can quickly realize the front maintenance and rear maintenance of the hollow LED display unit, thereby reducing the operation and maintenance intensity of the hollow LED display unit.

[0041] Secondly, the transfer board assembly arranged on the control box can realize the cascading transmission of external signals, reduce the data transmission lines of the hollow LED display unit, thereby simplifying the structure of the hollow LED display unit and improving the portability of the hollow LED display unit. Description of the drawings

[0042] Figure 1 It is a schematic structural diagram of a hollow LED display unit provided by an embodiment of the present utility model;

[0043] Figure 2 It is a schematic structural diagram of the control box provided by an embodiment of the present utility model;

[0044] Figure 3 It is an exploded view of a hollow LED display unit provided by an embodiment of the present utility model;

[0045] Figure 4 It is a partial enlarged view of the hollow LED display board provided by an embodiment of the present utility model:

[0046] Figure 5 It is a partial enlarged view of the control box provided by an embodiment of the present utility model.

[0047]

Explanation of reference numerals

[0048] 100: Hollow display board; 110: Through hole; 120: Pin assembly;

[0049] 200: Control box; 210: Housing; 220: Cover; 230: Adapter board assembly; 231: Receiver card; 232: Receiver socket; 233: Transmitter socket; 240: Switching power supply; 250: Damping hinge; 260: Lock; 261: Bottom lock base; 262: Snap base; 270: Mounting hole; 280: Heat sink fins;

[0050] 300: Insulating gasket;

[0051] 400: Mounting assembly; 410: Positioning post; 420: Positioning nut. Detailed implementation manner

[0052] In order to better explain the present invention for easy understanding, the present invention will be described in detail below with reference to the accompanying drawings and through specific implementation manners.

[0053] Reference Figures 1-5 As shown, a hollowed-out LED display unit proposed in an embodiment of the present invention includes: a hollowed-out display board 100 and a control box 200; the hollowed-out display board 100 includes: a plurality of through holes 110 evenly distributed on the hollowed-out display board 100; a plurality of light-emitting units arranged in the area between the plurality of through holes 110 for displaying images or information; a pin header assembly 120 connected to the light-emitting units for transmitting external signals and power to the light-emitting units; the control box 200 includes an adapter board assembly 230 connected to the pin header assembly 120 for cascading transmission of external signals and sending external signals to the pin header assembly 120.

[0054] In the embodiment, a plurality of through holes 110 are provided in the display area of the hollowed-out display board 100, and light-emitting units are arranged between the plurality of through holes 110. The hollowed-out display board 100 is connected to the control box 200 through the provided pin header assembly 120, and an adapter board assembly 230 for cascading transmission of external signals and sending external signals to each light-emitting unit is provided on the control box 200. Compared with the prior art, the present embodiment has the following beneficial effects:

[0055] First, in this embodiment, the control box 200 and the hollowed-out display board 100 are detachably connected through the pin header assembly, which can quickly realize the front maintenance and rear maintenance of the hollowed-out LED display unit, thereby reducing the operation and maintenance intensity of the hollowed-out LED display unit.

[0056] Second, the adapter board assembly 230 provided on the control box 200 can realize the cascading transmission of external signals, reduce the data transmission lines of the hollowed-out LED display unit, thereby simplifying the structure of the hollowed-out LED display unit and improving the portability of the hollowed-out LED display unit.

[0057] To better understand the above technical solution, the exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present utility model and to fully convey the scope of the present utility model to those skilled in the art.

[0058] First, the hollow display panel 100 includes: a plurality of through holes 110 uniformly distributed on the hollow display panel 100; a plurality of light-emitting units disposed in the areas between the plurality of through holes 110 for displaying images or information; and a pin header assembly 120 connected to the light-emitting units for transmitting external signals and power to the light-emitting units. In an embodiment, the substrate of the hollow display panel 100 can select a circuit board as the substrate. Due to the light weight of the circuit board, the overall portability of the hollow LED display unit can be improved.

[0059] Further, the through holes 110 in the hollow display panel 100 are uniformly arranged in the light-transmitting area of the hollow display panel 100, and all the through holes 110 are of the same size. The size of the through holes 110 is determined by the hollow area ratio of the hollow display panel 100. For example, when the hollow display panel 100 requires good light transmittance, ventilation, and visual permeability, the hollow ratio needs to reach 50% or more. At this time, the area of the through holes in the hollow display panel 100 is greater than or equal to the area of the non-through holes; when the hollow display panel 100 requires light transmittance and structural stability, the hollow ratio needs to be between 20% and 50%. At this time, the area of the non-through holes in the hollow display panel 100 is one to three times the area of the through holes; when the hollow display panel 100 requires strong structural stability, the hollow ratio needs to be less than 20%. At this time, the area of the non-through holes in the hollow display panel 100 is three times or more the area of the through holes.

[0060] Further, the light-emitting unit includes: an LED chip, which is attached to the area between the plurality of through holes 110. The LED chip is connected to the pin header assembly 120 through a driving chip provided on the hollow display panel 100. The LED chip has the characteristics of light weight, small size, and good luminous brightness. After the LED chip is attached to the hollow display panel 100, the overall weight of the hollow display panel 100 can be further reduced.

[0061] Furthermore, the driving chip includes: a column scanning chip and a row scanning chip. There are two connection modes when the driving chip is connected to the LED chip: column scanning common anode connection and column scanning common cathode connection. Column scanning common anode connection: the column scanning chip is connected to the positive pole of the LED chip, and the row scanning chip is connected to the negative pole of the LED chip. The column scanning common anode connection has a simple driving mode and can better drive the LED chip to light up. Column scanning common cathode connection: the column scanning chip is connected to the negative pole of the LED chip, and the row scanning chip is connected to the positive pole of the LED chip. When the column scanning common cathode connection mode drives the LED chip to light up, it has the characteristics of high brightness, low power and high refresh rate. At the same time, the hollow display board 100 using the column scanning common cathode connection design has a lower cost.

[0062] Secondly, the control box 200 includes: a housing 210, a cover 220, an adapter plate assembly 230, a damping hinge 250, a lock 260, an adapter plate assembly 230 and a switch power supply 240. The housing 210 and the cover 220 are connected by the damping hinge 250 and the lock 260, so that the housing 210 and the cover 220 can cooperate to form an openable accommodation space, the adapter plate assembly 230 and the switch power supply 240 are arranged in the accommodation space, the adapter plate assembly 230 is used to cascade transmit external signals, and send external signals to the light-emitting unit for display through the pin assembly 120, and the switch power supply 240 is connected to the adapter plate assembly 230 to provide power to the adapter plate assembly 230. The housing 210 and the cover 220 are connected by the damping hinge 250 and the lock 260, so that the control box 200 can be conveniently maintained after installation.

[0063] Furthermore, the adapter board assembly 230 includes: a female connector, a receiving card 231 and a network cable socket; the receiving card 231 is connected to the pin connector assembly 120 via the female connector, and is used to transmit external signals to the light-emitting unit for display, and to transmit power from the switching power supply 240 to the light-emitting unit; the network cable socket includes a receiving socket 232 and a sending socket 233, both of which are connected to the receiving card 231, the receiving socket 232 is used to receive external signals, and the sending socket 233 is used to send external signals to other control boxes to achieve cascade transmission of external signals.

[0064] In a specific embodiment, the external signal includes a video signal source with image information generated by the host computer, and the video signal source is sent to the receiving socket in the network cable socket through the network cable. When the video signal source generated by the host computer needs three hollow LED display units to be combined and displayed in real time, the receiving socket 232 in the first hollow LED display unit is connected to the host computer through the network cable, the sending socket 233 in the first hollow LED display unit is connected to the receiving socket 232 in the second hollow LED display unit through the network cable, the sending socket 233 in the second hollow LED display unit is connected to the receiving socket 232 in the third hollow LED display unit through the network cable, and the sending socket 233 in the second hollow LED display unit is suspended. The video signal source generated by the host computer passes through the adapter board assembly 230 in the three hollow LED display units in turn to form a cascade transmission of the video signal source, and finally the three hollow LED display units jointly display the picture information carried by the video signal source.

[0065] Furthermore, the switching power supply 240 is provided with a cascade transmission terminal for receiving external AC power and cascade transmission of the external AC power, so that the switching power supply 240 in each control box 200 shares an external AC power supply. The switching power supply 240 is provided with an output terminal connected to the adapter board assembly 230, and is used to provide DC power to the adapter board assembly 230 and the light-emitting unit after receiving the external AC power.

[0066] Furthermore, the housing 210 and the cover 220 are connected via a damping hinge 250, the base of the damping hinge 250 is mounted on the housing 210, and the hinge arm of the damping hinge 250 is mounted on the cover 220. The damping hinge 250 has a built-in damping device, which can provide a damping force when the cover 220 is opened or closed, so that the cover 220 is opened or closed slowly and smoothly, avoiding the impact force caused by a sudden collision.

[0067] Furthermore, the lock buckle 260 includes: a bottom buckle seat 261 and a buckle seat 262, the bottom buckle seat 261 is installed on the cover 220, and a button hole is provided on the bottom buckle seat 261, the buckle seat 262 is installed on the shell 210, and a buckle tongue is provided on the buckle seat 262, and the buckle tongue can be buckled into the button hole by rotating when the cover 220 is covered on the shell 210.

[0068] Furthermore, the rear side of the control box 200 is used to contact the wall, and the rear side of the control box 200 is provided with a mounting hole 270 and a heat dissipation fin 280. The mounting hole 270 is used to cooperate with the fixing screw to mount the control box 200 on the wall, and the heat dissipation fin 280 is used to improve the heat dissipation efficiency of the control box 200.

[0069] Next, the hollow LED display unit further includes: an insulating gasket 300. The insulating gasket 300 is disposed between the hollow display board 100 and the control box 200. The pin header assembly 120 passes through the insulating gasket 300 for electrically insulating and isolating the hollow display board 100, ensuring that when the control box 200 is installed on the hollow display board 100, current leakage or short - circuit will not occur, thereby protecting the circuit safety in the hollow display board 100.

[0070] Finally, the hollow LED display unit further includes: a mounting assembly 400. The mounting assembly 400 is disposed on the control box 200 and the hollow display board 100 for fixing the hollow display board 100 to the control box 200, enabling the pin header assembly 120 to be connected to the adapter board assembly 230. In the embodiment, the control box is vertically mounted at the edge position on the back of the hollow display board 100 through the mounting assembly 400, and the shortest side of the control box 200 contacts the back of the lamp board, so that the contact area between the control box 200 and the hollow display board 100 is minimized to increase the display area of the hollow LED display unit and improve the display effect of the hollow LED display unit.

[0071] Further, the mounting assembly 400 includes: a positioning post 410 and a positioning nut 420. The positioning post 410 is disposed on the hollow display board 100. The positioning post 410 is provided with an external thread and is detachably mounted on the hollow display board 100, improving the reusability of the hollow display board 100. The positioning nut 420 is disposed on the control box 200. The size of the positioning nut 420 is consistent with the size of the positioning post 410, and the internal thread of the positioning nut 420 is consistent with the external thread of the positioning post 410.

[0072] On the other hand, an embodiment of the present invention further provides a hollow LED display unit system, which includes:

[0073] At least one of the above - mentioned hollow LED display units for displaying video images;

[0074] A host computer connected to the hollow LED display unit for sending a video signal source to the hollow LED display unit for display.

[0075] When a higher screen resolution is required, multiple hollow LED display units can be spliced to display a high-resolution screen. The specific display process is as follows: First, the host computer sends the video signal source to the first hollow LED display unit; then, the first hollow LED display unit and the next hollow LED display unit form a cascaded transmission through the adapter board assembly 230, and so on until the last hollow LED display unit completes the cascaded transmission, dividing the video signal source into multiple sub-video signal sources, so that the control box of each hollow LED display unit can receive the corresponding sub-video signal source; finally, each control box 200 drives the corresponding hollow display board 100 to display the screen based on the received sub-video signal source, and finally displays a high-resolution screen.

[0076] In summary, a hollow LED display unit and its system proposed by the present utility model. The hollow LED display unit includes a hollow display board 100 and a control box 200. Through holes 110, light-emitting units and pin assemblies 120 are provided on the hollow display board 100. The light-emitting units are arranged in the area between multiple through holes 110 and are connected to the pin assemblies 120. The control box 200 is installed on one side of the hollow display board 100 through the installation assembly 400. The control box 200 is provided with an adapter board assembly 230 connected to the pin assembly 120 for cascaded transmission of external signals and sending the external signals to the light-emitting units through the pin assembly 120 for image or information display. The hollow LED display unit realizes cascaded transmission between multiple control boxes 200 through the adapter board assembly 230 and the transfer interface of the switching power supply 240, reducing the data transmission lines of the hollow LED display unit, simplifying the structure of the hollow LED display unit, and improving the portability of the hollow LED display unit. At the same time, the hollow LED display unit adopts a detachable connection method between the pin assembly 120 and the adapter board assembly 230, enabling the staff to quickly replace the hollow display board 100 or the control box 200, and the shell of the control box 200 adopts an open cover method, enabling the staff to quickly maintain the devices inside the control box 200, thereby greatly reducing the operation and maintenance intensity of the hollow LED display unit.

[0077] Those skilled in the art should understand that the embodiments of the present utility model can be provided as methods, systems, or computer program products. Therefore, the present utility model can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present utility model can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0078] The present utility model is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present utility model. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions.

[0079] It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present utility model can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a claim listing several apparatuses, several of these apparatuses can be embodied by the same hardware. The use of the words first, second, third, etc. is only for convenience of expression and does not denote any order. These words can be construed as part of the element name.

[0080] In addition, it should be noted that in the description of this specification, the description of terms such as "an embodiment", "some embodiments", "embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0081] Although the preferred embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications after learning the basic creative concepts. Therefore, the claims should be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present utility model.

[0082] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model should also include these modifications and variations.

Claims

1. A hollow LED display unit, characterized in that: include: A hollow display panel (100) and a control box (200); The hollow display panel (100) comprises: A plurality of through holes (110) uniformly distributed on the hollow display panel (100); A plurality of light-emitting units, arranged in the area between the plurality of through holes (110), for displaying images or information; A pin assembly (120), connected to the light-emitting unit, and used for transmitting external signals and power to the light-emitting unit; The control box (200) comprises an adapter plate assembly (230) connected to the pin header assembly (120) and used for cascading transmission of the external signal and sending the external signal to the pin header assembly (120).

2. The hollow LED display unit according to claim 1, characterized in that: include: Insulating gasket (300) and mounting assembly (400); The insulating gasket (300) is arranged between the hollow display panel (100) and the control box (200), and the pin assembly (120) passes through the insulating gasket (300) to electrically insulate the hollow display panel (100); The mounting assembly (400) is arranged on the control box (200) and the hollow display panel (100) and is used to fix the hollow display panel (100) to the control box (200) so as to connect the pin header assembly (120) to the adapter board assembly (230).

3. The hollow LED display unit according to claim 2, characterized in that: The installation assembly (400) comprises: a positioning column (410) and a positioning nut (420); The positioning column (410) is arranged on the hollow display panel (100), and the positioning column (410) is provided with an external thread; The positioning nut (420) is arranged on the control box (200), the size of the positioning nut (420) is consistent with the size of the positioning column (410), and the internal thread of the positioning nut (420) is consistent with the external thread of the positioning column (410).

4. The hollow LED display unit according to claim 1, characterized in that: The light-emitting unit comprises: an LED chip, the LED chip is attached to the area between the plurality of through holes (110), and the LED chip is connected to the pin assembly (120) via a driving chip arranged on the hollow display panel (100).

5. The hollow LED display unit according to claim 4, characterized in that: The driving chip includes: a column scanning chip and a row scanning chip; The column scanning chip is connected to the positive electrode of the LED chip, and the row scanning chip is connected to the negative electrode of the LED chip; or, The column scanning chip is connected to the cathode of the LED chip, and the row scanning chip is connected to the anode of the LED chip.

6. The hollow LED display unit according to claim 1, characterized in that: The adapter board assembly (230) comprises: a female connector, a receiving card (231) and a network cable socket; The receiving card (231) is connected to the pin header assembly (120) via the female header, and is used to transmit external signals and power to the hollow display panel (100); The network cable socket comprises a receiving socket (232) and a sending socket (233), wherein the receiving socket (232) and the sending socket (233) are both connected to the receiving card (231), the receiving socket (232) is used to receive external signals, and the sending socket (233) is used to send external signals.

7. The hollow LED display unit according to claim 1, characterized in that: The control box (200) comprises: a switching power supply (240); The switching power supply (240) is provided with a cascade transmission terminal for receiving external alternating current and performing cascade transmission on the external alternating current; The switching power supply (240) is provided with an output end connected to the adapter board assembly and is used to provide direct current to the adapter board assembly (230) and the light-emitting unit after receiving external alternating current.

8. The hollow LED display unit according to claim 1, characterized in that: The control box (200) comprises: a housing (210), a cover (220), a damping hinge (250) and a lock (260); The housing (210) and the cover (220) are connected via the damping hinge (250); the base of the damping hinge (250) is mounted on the housing (210), and the hinge arm of the damping hinge (250) is mounted on the cover (220); The lock buckle (260) comprises a bottom buckle seat (261) and a buckle seat (262); the bottom buckle seat (261) is mounted on the cover (220); a button hole is provided on the bottom buckle seat (261); the buckle seat (262) is mounted on the shell (210); a buckle tongue is provided on the buckle seat (262); the buckle tongue can be buckled into the button hole by rotating when the cover (220) is covered on the shell (210).

9. The hollow LED display unit according to claim 1, characterized in that: The rear side surface of the control box (200) is used to contact the wall surface, and the rear side surface of the control box (200) is provided with a mounting hole (270) and a heat dissipation fin (280).

10. A hollow LED display screen, characterized in that: include: At least one hollow LED display unit according to any one of claims 1 to 9, used for displaying images or information; The host computer connected to the hollow LED display screen is used to send external signals to the hollow LED display screen for display.

Images