CN218568407U

CN218568407U - LED display module and LED display device with same

Info

Publication number: CN218568407U
Application number: CN202222225764.3U
Authority: CN
Inventors: 郑金龙; 张海雷; 刘亚斌
Original assignee: Shenzhen Leyard Optoelectronic Co Ltd
Current assignee: Shenzhen Leyard Optoelectronic Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-03-03
Anticipated expiration: 2032-08-23

Abstract

The utility model provides a LED display module assembly and have its LED display device, wherein, LED display module assembly includes: the LED lamp panel is provided with a control circuit, and the control circuit comprises a plurality of first sub-circuits and a plurality of second sub-circuits; power signal sharing input connector sets up the rear side at the LED lamp plate, and power signal sharing input connector includes a plurality of first connection stitch and a plurality of second connection stitch, and wherein, a plurality of first connection stitches are connected with a plurality of first sub-circuit one-to-one, and every second connection stitch is connected with two at least second sub-circuit. The technical scheme of this application can solve the comparatively complicated problem of operation when the equipment LED display device among the correlation technique effectively.

Description

LED display module and LED display device with same

Technical Field

The utility model relates to a LED display device field particularly, relates to a LED display module assembly and have its LED display device.

Background

In the related art, the LED display module is provided with two input interfaces, namely a power input interface and a signal input interface, the power box of the LED display device is also correspondingly provided with a power output interface and a signal output interface, and the power transmission line and the signal transmission line are connected between the power box and the LED display module to supply power to the LED display module and transmit display data.

Because a LED display device includes a plurality of LED display module assemblies, every LED display module assembly all is connected with a power transmission line and a signal transmission line, makes the circuit between LED display module assembly and the power pack more and very mixed and disorderly like this, and when operating personnel carried out LED display device's equipment, every LED display module assembly need connect power transmission line and signal transmission line respectively, and the operation is comparatively complicated.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a LED display module and a LED display device having the same to solve the problem of complicated operation in the assembly of the LED display device in the related art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a LED display module, including: the LED lamp panel is provided with a control circuit, and the control circuit comprises a plurality of first sub-circuits and a plurality of second sub-circuits; power signal sharing input connector sets up the rear side at the LED lamp plate, and power signal sharing input connector includes a plurality of first connection stitch and a plurality of second connection stitch, and wherein, a plurality of first connection stitches are connected with a plurality of first sub-circuit one-to-one, and every second connection stitch is connected with two at least second sub-circuit.

Furthermore, the plurality of second connecting pins comprise first pins, the plurality of second sub-circuits comprise first display circuits and first logic timing signal decoding circuits, and the first display circuits and the first logic timing signal decoding circuits are arranged in parallel and connected with the first pins.

Further, the plurality of second connecting pins include a second pin, the plurality of second sub-circuits include a second display circuit and a first correction circuit, and the second display circuit and the first correction circuit are arranged in parallel and connected with the second pin.

Furthermore, the plurality of second connecting pins comprise a third pin, the plurality of second sub-circuits comprise a third display circuit and a second logic timing signal decoding circuit, and the third display circuit and the second logic timing signal decoding circuit are arranged in parallel and connected with the third pin.

Further, the plurality of second connection pins include a fourth pin, and the plurality of second sub-circuits further include a fourth display circuit, a second correction circuit, and an encryption circuit, the fourth display circuit, the second correction circuit, and the encryption circuit being arranged in parallel and connected to the fourth pin.

Furthermore, the power signal common input connector further comprises a housing portion, one part of each first connecting pin is arranged inside the housing portion, the other part of each first connecting pin is exposed out of the housing portion, one part of each second connecting pin is arranged inside the housing portion, and the other part of each second connecting pin is exposed out of the housing portion.

Furthermore, the shell part is provided with a socket which is used for being matched with a plug of the power signal sharing transmission line in a plugging mode.

Furthermore, a fool-proof concave part is arranged on the inner side wall of the socket.

Furthermore, the shell part is also provided with an anti-drop concave part, and the anti-drop concave part and the socket are arranged at intervals.

According to the utility model discloses an on the other hand provides a LED display device, including the box, set up at the LED display module assembly of box front side, set up in the box or set up the power pack at the box rear side and connect the power signal sharing transmission line between LED display module assembly and power pack, the LED display module assembly is foretell LED display module assembly.

Use the technical scheme of the utility model, form power signal sharing input connector with power input interface and signal input interface integration together, only need connect between power pack and every LED display module simultaneously power supply signal sharing transmission line can, make the quantity of the connecting wire between power pack and every LED display module reduce half, and then the quantity of the connecting wire among the whole LED display device also reduces half, the inside line connection of LED display device has been simplified like this, easily operating personnel carries out LED display device's equipment. Therefore, the technical scheme of the application can effectively solve the problem that the operation is complex when the LED display device is assembled in the related art.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram illustrating pin connections of a power signal common input connector according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a power signal common input connector according to an embodiment of the present invention;

FIG. 3 is a schematic front view of the power signal common input connector of FIG. 2;

fig. 4 shows a schematic perspective view of an embodiment of an LED display device according to the present invention; and

fig. 5 is a schematic perspective view illustrating a power signal common transmission line of the LED display device of fig. 4.

Wherein the figures include the following reference numerals:

10. an LED display module; 20. the power supply signal shares the input connector; 21. a housing portion; 211. a socket; 212. a fool-proof recess; 213. an anti-drop concave part; 30. the power supply signal shares the transmission line; 31. a plug; 40. power supply box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the LED display module of the present embodiment includes an LED lamp panel and a power signal common input connector 20. The LED lamp panel is provided with a control circuit, and the control circuit comprises a plurality of first sub-circuits and a plurality of second sub-circuits; power signal sharing input connector 20 sets up the rear side at the LED lamp plate, and power signal sharing input connector includes a plurality of first connecting pins and a plurality of second connecting pin, and wherein, a plurality of first connecting pins are connected with a plurality of first sub-circuit one-to-one, and every second connecting pin is connected with two at least second sub-circuit.

By applying the technical scheme of the embodiment, the power input interface and the signal input interface are integrated together to form the power signal common input connector 20, so that only one power signal common transmission line 30 needs to be connected between the power box 40 and each LED display module to realize power supply and signal transmission simultaneously, the number of connecting lines between the power box 40 and each LED display module is reduced by half, and further the number of connecting lines in the whole LED display device is reduced by half, so that the circuit connection inside the LED display device is simplified, and an operator can easily assemble the LED display device. Therefore, the technical scheme of the embodiment can effectively solve the problem of complex operation when the LED display device is assembled in the related art.

Since the type-C wire can transmit both electric power and signals, in the present embodiment, the type-C wire is used as the power signal common transmission line 30 to be connected to the power signal common input connector 20. In the prior art, the interface with 26 pins is used for signal transmission on the LED module, the interface with 4 pins is used for power transmission, and the type-C interface only has 24 pins, so that in the embodiment, each second connecting pin is connected with at least two second sub-circuits, different second sub-circuits which do not need to work simultaneously are connected on the same second connecting pin, multiplexing of the connecting pins is realized, and even if the number of the pins is reduced, the requirement of normal display of the LED display module can be met.

It should be noted that each first sub-circuit is connected to only one first connection pin, and each second sub-circuit is connected to only one second connection pin.

Specifically, as shown in fig. 1, in the present embodiment, the plurality of second connection pins include a first pin, the plurality of second sub-circuits include a first display circuit and a first logic timing signal decoding circuit, and the first display circuit and the first logic timing signal decoding circuit are arranged in parallel and connected to the first pin. The first display circuit transmits a column display signal (DATA), the first logic timing signal decoding circuit transmits a row display signal, and before the LED display device normally operates, whether the first display circuit operates or the first logic timing signal decoding circuit operates can be selected. Specifically, the first pin is the pin No. 11 in fig. 1.

As shown in fig. 1, in the present embodiment, the plurality of second connection pins include a second pin, and the plurality of second sub-circuits include a second display circuit and a first correction circuit, and the second display circuit and the first correction circuit are arranged in parallel and connected to the second pin. The second display circuit transmits column display signals (DATA DATA), and the second display circuit and the first display circuit control different display areas on the LED lamp panel. Specifically, in the installation and debugging stage of the LED display device, the display of each LED display module needs to be corrected, in the debugging stage, the first correction circuit works through manual triggering of an upper computer or control software, and at the moment, the second display circuit transmits low level, namely, a display area controlled by the second display circuit does not emit light; after the correction is completed, the second display circuit is made to operate, and its function of transmitting display data is restored. Specifically, the second pin is the pin No. 9 in fig. 1.

As shown in fig. 1, in the present embodiment, the plurality of second connection pins include a third pin, the plurality of second sub-circuits include a third display circuit and a second logic timing signal decoding circuit, and the third display circuit and the second logic timing signal decoding circuit are arranged in parallel and connected to the third pin. The third display circuit transmits a column display signal (DATA), and the second logic timing signal decoding circuit transmits a row display signal. Before the LED display device works normally, the third display circuit or the second logic sequence signal decoding circuit can be selected to work. Specifically, the third pin is the pin No. 12 in fig. 1.

As shown in fig. 1, in the present embodiment, the plurality of second connection pins include a fourth pin, and the plurality of second sub-circuits further include a fourth display circuit, a second correction circuit, and an encryption circuit, and the fourth display circuit, the second correction circuit, and the encryption circuit are arranged in parallel and connected to the fourth pin. The fourth display circuit transmits row display signals (DATA DATA), when the encryption circuit works, an MCU (micro control unit) in the LED display module communicates with an MCU of a receiving card in the LED display device through the encryption circuit, the LED display module can normally display only if the communication is successful, the encryption circuit stops working after the matching is successful, and the fourth display circuit works to recover the function of transmitting the display DATA (DATA); if the communication is unsuccessful, the system is not matched successfully, and the system needs to be replaced. It should be noted that, in this embodiment, the first correction circuit and the second correction circuit only work at the debugging stage of the LED display device, and generally, the LED display device only needs to be debugged once, and is not required to be debugged before each display; the encryption circuit works before each display, after the LED display device is powered on, the encryption circuit works first, and only after the communication is successful, the LED display device can normally display the picture. Specifically, the fourth pin is the pin No. 10 in fig. 1.

In the present embodiment, the remaining pins (the first connection pins) in the power signal common input connector 20 are connected to only one sub-circuit except the four pins, and the sub-circuits are conventional circuits in the art. Specifically, as shown in fig. 1, pins No. 1, no. 2, no. 3, and No. 4 are connected to a power supply circuit VCC circuit; pins No. 21, no. 22, no. 23 and No. 24 are connected with a power supply circuit GND circuit; no. 5, no. 6, no. 7 and No. 8 pins are connected with the display circuit; pins No. 13, no. 14 and No. 15 are connected with a logic time sequence signal decoding circuit; pins No. 17 and No. 18 are connected with a correction circuit; pins 16, 19 and 20 are connected to logic timing signal circuits.

As shown in fig. 2 and 3, the power signal common input connector 20 further includes a housing portion 21, one portion of each first connecting pin is disposed inside the housing portion 21, the other portion is exposed out of the housing portion 21, and one portion of each second connecting pin is disposed inside the housing portion 21, and the other portion is exposed out of the housing portion 21. The first connection pin portion and the second connection pin portion inside the housing portion 21 are connected to the power signal common transmission line 30, and the first connection pin portion and the second connection pin portion outside the housing portion 21 are connected to the sub-circuits.

As shown in fig. 2, 3 and 5, the housing 21 is provided with a jack 211 for mating with the plug 31 of the power signal common transmission line 30. The plug 31 and the socket 211 are in plug-in fit to realize the transmission of electric energy and signals between the power supply box 40 and the LED display module.

As shown in fig. 2, 3 and 5, a fool-proof recess 212 is provided on the inner sidewall of the socket 211, and correspondingly, a protrusion structure matching with the fool-proof recess 212 is also provided on the plug 31. Because each pin of the power signal common input connector 20 needs to be connected with a corresponding sub-circuit, the LED display module cannot normally display or even may burn out after the plug 31 is inserted reversely, and the fool-proof concave portion 212 is arranged to effectively prevent the plug from being inserted reversely.

As shown in fig. 2, 3 and 5, case 21 is further provided with retaining recess 213, and retaining recess 213 is provided at a distance from socket 211. Because the power signal common transmission line 30 has a certain weight, after the LED display device is assembled, the power signal common transmission line 30 will pull the plug 31 downward under the action of its own gravity, and the plug 31 is easily removed from the socket 211 during long-term use. The housing 21 is provided with an anti-slip recess 213, and the plug 31 is provided with an anti-slip projection inserted into the anti-slip recess 213, so that the plug 31 is in plug-in fit with the socket 211, and the anti-slip projection is in plug-in fit with the anti-slip recess 213, thereby achieving an anti-pull-off effect.

As shown in fig. 4 and fig. 5, the present application further provides an LED display device, an embodiment of the LED display device of the present application includes a box, an LED display module 10 disposed in front of the box, a power box 40 disposed in the box or disposed behind the box, and a power signal shared transmission line 30 connected between the LED display module 10 and the power box 40, where the LED display module is the above-mentioned LED display module. The LED display module can effectively solve the problem that the operation is complex when the LED display device is assembled in the related technology. The LED display device with the LED display module also has the advantages.

In this embodiment, the power box 40 includes both a power supply and a control board, and the power supply and the control board are integrated and then connected to the power signal common transmission line 30 through a power signal common output interface to supply power to the LED display module and transmit control signals.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a LED display module assembly which characterized in that includes:

the LED lamp panel is provided with a control circuit, and the control circuit comprises a plurality of first sub-circuits and a plurality of second sub-circuits;

power signal sharing input connector (20), the setting is in the rear side of LED lamp plate, power signal sharing input connector includes a plurality of first connecting pin and a plurality of second connecting pin, and is wherein, a plurality of first connecting pin is with a plurality of first sub-circuit one-to-one ground is connected, every the second connecting pin is with at least two the second sub-circuit is connected.

2. The LED display module of claim 1, wherein the plurality of second connection pins comprises a first pin, the plurality of second sub-circuits comprises a first display circuit and a first logic timing signal decoding circuit, and the first display circuit and the first logic timing signal decoding circuit are arranged in parallel and connected to the first pin.

3. The LED display module of claim 1, wherein the plurality of second connection pins comprises a second pin, and the plurality of second sub-circuits comprises a second display circuit and a first correction circuit, the second display circuit and the first correction circuit being arranged in parallel and connected to the second pin.

4. The LED display module of claim 1, wherein the plurality of second connection pins comprises a third pin, the plurality of second sub-circuits comprises a third display circuit and a second logic timing signal decoding circuit, and the third display circuit and the second logic timing signal decoding circuit are connected in parallel and connected to the third pin.

5. The LED display module of claim 1, wherein the plurality of second connection pins comprises a fourth pin, and the plurality of second sub-circuits further comprises a fourth display circuit, a second correction circuit, and an encryption circuit, the fourth display circuit, the second correction circuit, and the encryption circuit being disposed in parallel and connected to the fourth pin.

6. The LED display module according to any one of claims 1 to 5, wherein the power signal common input connector (20) further comprises a housing portion (21), a portion of each of the first connecting pins is disposed inside the housing portion (21) and another portion is exposed out of the housing portion (21), and a portion of each of the second connecting pins is disposed inside the housing portion (21) and another portion is exposed out of the housing portion (21).

7. The LED display module according to claim 6, wherein the housing portion (21) is provided with a socket (211) for plugging and matching with a plug (31) of the power signal common transmission line (30).

8. The LED display module of claim 7, wherein a fool-proof recess (212) is provided on an inner sidewall of the socket (211).

9. The LED display module according to claim 7, wherein a retaining recess (213) is further disposed on the housing portion (21), and the retaining recess (213) is spaced apart from the insertion opening (211).

10. An LED display device, comprising a box body, an LED display module (10) arranged at the front side of the box body, a power supply box (40) arranged in the box body or arranged at the rear side of the box body, and a power supply signal shared transmission line (30) connected between the LED display module (10) and the power supply box (40), wherein the LED display module is the LED display module as claimed in any one of claims 1 to 9.