LED display unit, LED display control system and LED display screen

Abstract

The utility model discloses an LED display unit, which comprises a receiving card, a transmission control module and a plurality of interfaces, the plurality of interfaces are electrically connected with the transmission control module, the plurality of interfaces comprise an input interface and an output interface, the transmission control module is used for identifying the input interface and the output interface from the plurality of interfaces, and the input interface and the output interface are electrically connected with the receiving card. And the transmission control module is electrically connected with the receiving card. The LED display unit identifies the input interface and the output interface from the plurality of interfaces through the transmission control module, and when any two of the plurality of interfaces of the LED display unit can be used normally, the LED display unit can realize the function of inputting and outputting video signals, so that the risk that the LED display unit cannot be used normally due to damage of the interfaces is reduced, and the service life of the LED display unit is prolonged. And the reliability of the LED display screen is improved. The utility model further discloses an LED display control system which comprises the LED display unit. The utility model further discloses an LED display screen which comprises the LED display control system.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to an LED display unit, an LED display control system and an LED display screen. Background Art

[0002] With the rapid development of LED display technology, the application scenarios of LED display screens are becoming more and more extensive. In recent years, the LED display screen rental industry has developed rapidly. Since the existing LED display screens are composed of multiple LED display units cascaded together, the LED display units of the LED display screens used for rental need to be frequently spliced ​​and disassembled.

[0003] like Figure 1 As shown, the existing LED display unit is provided with an input data interface for inputting video signals and an output data interface for outputting video signals. The input data interface of the upper LED display unit in the two cascaded LED display units is electrically connected to the output data interface of the lower LED display unit. In the process of splicing and disassembling the LED display units, the input data interface and the output data interface need to be repeatedly plugged in and unplugged, which makes the input data interface and the output data interface easy to be damaged. When the input interface or the output interface of the LED display unit is damaged, the LED display unit cannot receive or output video signals, thereby causing the LED display screen to be unable to be used normally. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an LED display unit, an LED display control system and an LED display screen, so as to solve the problem that the data interface of the existing LED display unit is easily damaged and affects the normal use of the LED display screen.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an LED display unit, including a receiving card, a transmission control module and multiple interfaces, the multiple interfaces are electrically connected to the transmission control module, the multiple interfaces include an input interface and an output interface, the transmission control module is used to identify the input interface and the output interface from the multiple interfaces, and the transmission control module is electrically connected to the receiving card.

[0006] Furthermore, the transmission control module includes a first forwarding interface and a second forwarding interface, the receiving card includes an input data interface and an output data interface, the first forwarding interface is electrically connected to the input data interface, and the second forwarding interface is electrically connected to the output data interface.

[0007] Furthermore, it also includes an LED display module, the receiving card is electrically connected to the LED display module, and the receiving card is used to control and drive the LED display module.

[0008] Furthermore, the interface includes an RJ45 interface.

[0009] Furthermore, the transmission control module includes an MCU controller.

[0010] The utility model also provides an LED display control system, comprising a plurality of the above-mentioned LED display units, wherein the plurality of the LED display units are cascade-connected, and in two connected LED display units, the output interface of one LED light box is electrically connected to the input interface of another LED light box.

[0011] Furthermore, it also includes a sending card, the plurality of LED display units include a first-level LED display unit, and the sending card is electrically connected to an input interface of the first-level LED display unit.

[0012] Furthermore, it also includes a host computer, which is electrically connected to the sending card.

[0013] Furthermore, a plurality of the LED display units are arranged in an array.

[0014] The utility model also provides an LED display screen, comprising the above-mentioned LED display control system.

[0015] The beneficial effect of the present invention is that the LED display unit described in the present invention increases the number of interfaces, and the transmission control module can identify the input interface and the output interface from multiple interfaces. When two of the multiple interfaces of the LED display unit can be used normally, the LED display unit can realize the function of inputting and outputting video signals, which reduces the risk of the LED display unit being unable to be used normally due to interface damage and improves the reliability of the LED display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an existing LED display screen;

[0017] Figure 2 This is a schematic structural diagram of an LED display unit according to the utility model in one embodiment;

[0018] Figure 3 This is a schematic diagram of the structure of the LED display screen of the utility model in one embodiment;

[0019] Description of labels:

[0020] 1. LED display unit; 11. First-level LED display unit;

[0021] 2. Receiving card; 21. Input data interface; 22. Output data interface;

[0022] 3. Transmission control module; 31. First forwarding interface; 32. Second forwarding interface;

[0023] 4. Interface; 41. Input interface; 42. Output interface;

[0024] 5. Send card;

[0025] 6. Host computer. DETAILED DESCRIPTION

[0026] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0027] Please refer to Figure 2 as well as Figure 3 , an LED display unit 1, including a receiving card 2, a transmission control module 3 and multiple interfaces 4, the multiple interfaces 4 are electrically connected to the transmission control module 3, the multiple interfaces 4 include an input interface 41 and an output interface 42, the transmission control module 3 is used to identify the input interface 41 and the output interface 42 from the multiple interfaces 4, and the transmission control module 3 is electrically connected to the receiving card 2.

[0028] The working principle of the present invention is briefly described as follows: the transmission control module 3 of the LED display unit described in the present invention sequentially numbers the multiple interfaces 4 according to the arrangement order, and the transmission control module 3 can identify the in-place status of the interface 4; specifically, when the transmission control module 3 identifies that two or more interfaces 4 are in-place, the transmission control module identifies the interface 4 with the lowest number in-place as the input interface 41, and the interface 4 in-place and closest to the numbered input interface 41 as the output interface 42, and other in-place interfaces 4 are not used; when the transmission control module 3 only identifies that one interface 4 is in-place, the transmission control module 3 identifies the in-place interface 4 as the input interface 41. Based on the principle that the transmission control module 3 identifies the input interface 41 and the output interface 42, when the operator splices and assembles the LED display unit 1, the operator can connect the input wiring at one of the multiple interfaces 4, and connect the output wiring at the high-numbered interface adjacent to the interface.

[0029] The input interface 41 receives an input display signal from the upper-level LED display unit 1 or the sending card 5, and the input interface 41 transmits the input display signal to the transmission control module 3, and the transmission control module 3 forwards the input display signal to the receiving card 2. The receiving card 2 identifies and processes the input display signal, and the receiving card 2 controls the LED display module to display corresponding image information according to the display signal. The receiving card 2 then sends the output display signal to the transmission control module 3, and the transmission control module 3 sends the output display signal to the output interface 42, and the output interface 42 sends the output display signal to the lower-level LED display unit 1 to form a display signal link of: upper-level LED display unit 1-input interface 41-transmission control module 3-receiving card 2-transmission control module 3-output interface 42-lower-level LED display unit 1.

[0030] From the above description, it can be seen that the beneficial effect of the utility model is that: the LED display unit 1 described in the utility model increases the number of interfaces 4, and the transmission control module 3 can identify the input interface 41 and the output interface 42 from the multiple interfaces 4. When two of the multiple interfaces 4 of the LED display unit 1 can be used normally, the LED display unit 1 can realize the function of inputting and outputting video signals, which reduces the risk of the LED display unit 1 not being able to be used normally due to damage to the interface 4, and improves the reliability of the LED display screen.

[0031] Furthermore, the transmission control module 3 includes a first forwarding interface 31 and a second forwarding interface 32, the receiving card 2 includes an input data interface 21 and an output data interface 22, the first forwarding interface 31 is electrically connected to the input data interface 21, and the second forwarding interface 32 is electrically connected to the output data interface 22.

[0032] From the above description, it can be seen that the transmission control module 3 sends the input video signal received by the input interface 41 to the input data interface 21 of the receiving card 2 through the first forwarding interface 31; the transmission control module 3 sends the output display signal output by the output data interface 22 of the receiving card 2 to the second forwarding interface 32.

[0033] Furthermore, it also includes an LED display module, the receiving card 2 is electrically connected to the LED display module, and the receiving card 2 is used to control and drive the LED display module.

[0034] It can be seen from the above description that the LED display module is used to display image information.

[0035] Furthermore, the interface 4 includes an RJ45 interface 4.

[0036] Furthermore, the transmission control module 3 includes an MCU controller.

[0037] The utility model also provides an LED display control system, including the above-mentioned LED display unit 1, multiple LED display units 1 are cascaded, and in two connected LED display units 1, the output interface 42 of one LED light box is electrically connected to the input interface 41 of the other LED light box.

[0038] It can be seen from the above description that the LED display control system adopts the above-mentioned LED display unit 1, so the LED display control system at least has all the beneficial effects brought by the technical solution of the above-mentioned LED display unit 1.

[0039] Furthermore, it also includes a sending card 5 , the plurality of LED display units 1 include a primary LED display unit 11 , and the sending card 5 is electrically connected to an input interface 41 of the primary LED display unit 11 .

[0040] Furthermore, it also includes a host computer 6 , which is electrically connected to the sending card 5 .

[0041] Furthermore, a plurality of the LED display units 1 are arranged in an array.

[0042] An LED display screen comprises the above-mentioned LED display control system.

[0043] It can be seen from the above description that the LED display screen adopts the above LED display control system, so the LED display screen at least has all the beneficial effects brought by the technical solutions of the above LED display control system and the LED display unit 1.

[0044] Embodiment 1

[0045] Please refer to Figures 2 to 3 , Embodiment 1 of the utility model is: an LED display unit 1, which includes a receiving card 2, a transmission control module 3, an LED display module and four interfaces 4. Of course, the number of interfaces 4 can be increased or decreased according to actual application requirements, wherein the four interfaces 4 are all electrically connected to the transmission control module 3, the transmission control module 3 is connected to the receiving card 2, the receiving card 2 is connected to the LED display module, the receiving card 2 is used to control and drive the LED display module, the transmission control module 3 includes an MCU controller, and the interface 4 includes an RJ45 interface 4.

[0046] In the first embodiment of the present invention, the transmission control module 3 includes a first forwarding interface 31 and a second forwarding interface 32, the receiving card 2 includes an input data interface 21 and an output data interface 22, the first forwarding interface 31 and the input data interface 21, and the second forwarding interface 32 and the output data interface 22 are electrically connected, the multiple interfaces 4 include an input interface 41 and an output interface 42, and the transmission control module 3 is used to identify the input interface 41 and the output interface 42 from the multiple interfaces 4.

[0047] The transmission control modules 3 can be numbered in sequence according to the arrangement order of the four interfaces 4, such as Figure 3 As shown, in the first embodiment, the transmission module numbers the four interfaces 4 as interface a, interface b, interface c and interface d in sequence. In actual application, the operator can connect the input wiring to one of the interfaces 4 to use the interface 4 as the input interface 41, and connect the output wiring to the high-numbered interface adjacent to the input interface 41 to use it as the output interface 42; specifically: when interface a is connected to the input wiring, interface b is connected to the output wiring; when interface a is damaged, interface b is connected to the input wiring, and interface c is connected to the output wiring; when interfaces a and b are both damaged, interface c is connected to the input wiring, and interface d is connected to the output wiring.

[0048] The transmission control module 3 can also identify the status of each interface 4, and identify the input interface 41 and the output interface 42 in combination with the status of the interface 4 and the number information of the interface 4;

[0049] When the transmission control module 3 identifies that two interfaces 4 are in the in-position state, the transmission control module 3 identifies the interface with the lowest bit number as the input interface 41, and the other interface as the output interface 42. For example, when interfaces a and b are identified as in the in-position state, the transmission control module 3 identifies interface a as the input interface 41, and identifies interface b as the output interface 42.

[0050] When the transmission control module recognizes that more than two interfaces are in the in-place state, the transmission control module 3 recognizes the interface in the lowest number as the input interface 41, and another in-place interface with a number sequence closest to the input interface 41 as the output interface 42, and other interfaces with higher numbers than the output interface 42 are not used. For example, when the transmission control module 3 recognizes that interfaces a, b, and c are in the in-place state, the transmission control module 3 recognizes interface a as the input interface 41, and interface b as the output interface 42, and interface c is not used;

[0051] When the transmission control module identifies that an interface is in the in-place state, the transmission control module 3 identifies the in-place interface as the input interface 41 . For example, when the transmission control module 3 identifies that interface b is in the in-place state, the transmission control module 3 identifies interface b as the input interface 41 .

[0052] In actual application, the upper-level LED display unit and the lower-level LED display unit of any LED display unit 1 can be cascaded connected through two of the multiple interfaces respectively, and the transmission control module can determine and identify the in-place status of the interface, and identify the in-place interface as the input interface 41 or the output interface 42.

[0053] Specifically, the input interface 41 is used to receive the input display signal of the upper-level LED display unit and transmit the input display signal to the transmission control module 3. The transmission control module 3 sends the input video signal received by the input interface 41 to the input data interface 21 of the receiving card 2 through the first forwarding interface 31; the transmission control module 3 sends the output display signal output by the output data interface 22 of the receiving card 2 to the second forwarding interface 32, and the transmission control module 3 outputs the output display signal to the lower-level LED display unit through the output interface 42.

[0054] The above-mentioned LED display unit 1 can be applied to an LED display control system. Specifically, the LED display control system includes a host computer 6, a sending card 5 and multiple LED display units 1, wherein the host computer 6 is electrically connected to the sending card 5, the sending card 5 is connected to one of the multiple LED display units 1, and the LED display unit 1 connected to the sending card 5 becomes a first-level LED display unit 11. Specifically, the input interface 41 of the first-level LED display unit 11 is electrically connected to the sending card 5, and multiple LED display units 1 are cascaded and arranged in an array. Among them, the input interface 41 of any LED display unit 1 is connected to the output interface 42 of its upper-level LED display unit 1, and the output interface 42 of any LED display unit 1 is connected to the output interface 42 of its lower-level LED display unit 1.

[0055] The above-mentioned LED display control system can be specifically applied to LED display screens.

[0056] To sum up, the LED display unit 1 described in the utility model increases the number of interfaces 4, and the transmission control module 3 can identify the input interface 41 and the output interface 42 from the multiple interfaces 4. When two of the multiple interfaces 4 of the LED display unit 1 can be used normally, the LED display unit 1 can realize the function of inputting and outputting video signals, which reduces the risk of the LED display unit 1 being unable to be used normally due to damage to the interface 4, and improves the reliability of the LED display screen.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An LED display unit, comprising a receiving card, characterized in that: It also includes a transmission control module and multiple interfaces, all of which are electrically connected to the transmission control module. The multiple interfaces include an input interface and an output interface. The transmission control module is used to identify the input interface and the output interface from the multiple interfaces, and the transmission control module is electrically connected to the receiving card.

2. The LED display unit according to claim 1, characterized in that: The transmission control module includes a first forwarding interface and a second forwarding interface, the receiving card includes an input data interface and an output data interface, the first forwarding interface is electrically connected to the input data interface, and the second forwarding interface is electrically connected to the output data interface.

3. The LED display unit according to claim 1 or 2, characterized in that: It also includes an LED display module, the receiving card is electrically connected to the LED display module, and the receiving card is used to control and drive the LED display module.

4. The LED display unit according to claim 1, characterized in that: The interface includes an RJ45 interface.

5. The LED display unit according to claim 1, characterized in that: The transmission control module includes an MCU controller.

6. An LED display control system, characterized in that: It comprises a plurality of LED display units as described in any one of claims 1 to 5, wherein the plurality of LED display units are connected in cascade, and in two connected LED display units, the output interface of one LED display unit is electrically connected to the input interface of the other LED display unit.

7. The LED display control system according to claim 6, characterized in that: It also includes a sending card, wherein the plurality of LED display units include a first-level LED display unit, and the sending card is electrically connected to an input interface of the first-level LED display unit.

8. The LED display control system according to claim 7, characterized in that: It also includes a host computer, which is electrically connected to the sending card.

9. The LED display control system according to claim 6, characterized in that: A plurality of the LED display units are arranged in an array.

10. An LED display screen, characterized in that: Includes the LED display control system described in any one of claims 6-9.

Images