CN111028701A

CN111028701A - LED display screen

Info

Publication number: CN111028701A
Application number: CN201911204514.8A
Authority: CN
Inventors: 熊周成
Original assignee: Shenzhen Jijian Design Co Ltd
Current assignee: SHENZHEN PENGWEI TECHNOLOGY CO LTD
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-04-17
Anticipated expiration: 2039-11-29
Also published as: CN111028701B

Abstract

The invention discloses an LED display screen, and belongs to the technical field of LED display screens. This LED display screen includes a plurality of display element, fixes a position through axle position screw between the adjacent display element to utilize hasp locking and fix together: this display element includes box, a plurality of display module assembly, 1 HUB board and 1 or a plurality of power. The power supply and the HUB board are fixed on the bottom board, and the power supply and the HUB board are arranged side by side and electrically connected; the plurality of display modules are fixed on the box body through the plurality of fixing columns; the bottom plate is further provided with a plurality of rib plates, the rib plates are aligned with splicing seams of the display modules, grooves are formed in the tops of the rib plates along the direction of the splicing seams, and the interiors of the grooves are black. The display unit and the LED display screen have the advantages of being thin in box body, light-tight in seam position and good in display effect.

Description

LED display screen

Technical Field

The invention relates to the technical field of LED display screens, in particular to an LED display screen.

Background

The LED display screen has the advantages of bright color, wide dynamic range, high brightness, long service life, stable and reliable work and the like, is widely applied to commercial media, cultural performance markets, stadiums, information dissemination, news distribution, security trading and the like, and can meet the requirements of different environments.

The LED display screen is formed by a plurality of display element concatenations usually, and every display element contains box and 8 at least display module groups again, in order to realize power supply and control to each display module group, every display element all need dispose interface board (HUB) board and power.

The display module assembly of the prior art is more, so the joint line is also more, and the broadcast is that the joint line is obvious, has influenced the broadcast effect of video, and has not only production and maintenance inconvenience of high concatenation precision display screen, and the cost is higher moreover, consequently needs to provide the LED display screen of being convenient for to maintain of low cost that can eliminate the joint line influence.

Disclosure of Invention

The invention mainly aims to provide an LED display screen, and aims to solve the problem that in the prior art, the video playing effect is influenced by more splicing seams of a display unit.

In order to achieve the above object, the present invention provides a display unit, wherein the LED display screen comprises a plurality of display units, adjacent display units are positioned by axial screws and locked and fixed together by using latches:

the display unit comprises a box body and a plurality of display modules;

the box body comprises a bottom plate and 4 frames, the frames are arranged around the edge of the bottom plate and fixed on the bottom plate, and the bottom plate is provided with a plurality of fixing columns;

the plurality of display modules are fixed on the box body through the plurality of fixing columns, and the edge of a screen spliced by the plurality of display modules is in contact with the top of the frame;

the bottom plate is further provided with a plurality of rib plates, the rib plates are aligned with splicing seams of the display modules, grooves are formed in the tops of the rib plates along the direction of the splicing seams, and the interiors of the grooves are black.

Further, the display unit further comprises a HUB board and a power supply:

the power reaches the HUB board is fixed on the bottom plate, and the power with the HUB board sets up side by side and electricity is connected.

Further, the number of HUB board is 1, the number of power is 1 or more:

when the number of the power supplies is multiple, the power supplies are respectively arranged on two sides of the HUB board;

the HUB board is provided with 2 receiving cards which are respectively connected with the circuit of the HUB board;

the 4 frames are respectively provided with a first input/output interface, and the first input/output interfaces are integrated with a power line connector and a signal line connector;

each power supply is provided with a second input/output interface, the second input/output interface integrates a power line connector and a signal line connector corresponding to the first input/output interface, the power line connector is electrically connected with a circuit of the power supply, and the signal line connector is electrically connected with a circuit of the HUB board;

the second input/output interface is connected with the first input/output interface through an integrated line, and the integrated line integrates a power line and a signal line corresponding to the first input/output interface.

Furthermore, the power supply comprises a power supply box and a power supply circuit board arranged in the power supply box, and the power supply box is fixed on the bottom plate and is in contact with the bottom plate.

Furthermore, a wire passing groove is further formed in the rib plate and used for enabling the integrated wire to connect the second input/output interface with the specified first input/output interface through the rib plate.

Further, all be equipped with a first board to the board connector on every display module assembly, the first board that corresponds each display module assembly on the HUB board is equipped with the second board to the board connector, the display module assembly with realize power and signal connection through the board between the HUB board to the board connector.

Further, each frame is provided with an axis position screw hole for being matched with an axis position screw, wherein the axis position screw is used for positioning between the box bodies of adjacent display units, the axis position screw comprises a fixing shaft, an intermediate shaft and a screw rod, the diameter of the fixing shaft is larger than the diameter of the axis position screw hole and the diameter of the intermediate shaft, the intermediate shaft is matched with the axis position screw hole, the diameter of the intermediate shaft is larger than the diameter of the screw rod, and a chamfer is arranged on the outer circumference of a step between the intermediate shaft and the screw rod.

Furthermore, the tops of the fixing columns are provided with first magnets, and the display module is provided with second magnets attracted with the first magnets.

Furthermore, each frame is also provided with a lock catch hole for matching with a lock catch, wherein the lock catch is used for locking and fixing the display unit and the adjacent display unit together.

In order to achieve the above object, the present invention further provides an LED display screen, which includes a plurality of display units as described above, wherein adjacent display units are positioned by axial screws, locked and fixed together by using latches

The display unit and the LED display screen provided by the invention have the following advantages:

1. the grooves are designed at the joints of the display module of the box body, white gaps cannot be seen at the joints, the display effect is better, the realization is simple, and the production and maintenance cost of the LED display screen cannot be additionally increased;

2. the dual-power-supply dual-receiving card is provided, so that dual backup of the system is realized, and when one power supply or one receiving card fails, the display screen can continue to work normally;

3. an ultrathin power supply is adopted, so that the internal space is saved, and the whole box body can be thinner;

4. the integrated line is adopted, and the power line signal line is integrated into the integrated line, so that wiring is reduced, cost is saved, and maintenance is facilitated;

5. the 4 frames are provided with first input and output interfaces, so that adjacent display modules can be connected in a left-right cascade mode or an upper-lower cascade mode, and various installation wiring modes are supported to facilitate box body arrangement;

6. the box body is positioned by adopting a precise axis screw, and can be positioned and then locked, so that the installation precision of the box body is higher;

7. the display module is maintained before the magnet is adopted, so that the display module is convenient to disassemble and assemble;

8. the power supply and the HUB board are designed side by side, the requirement on the internal space is thinner, and the thickness of the box body is further reduced;

9. the board-to-board connectors are adopted, wireless connection is realized, the cost is reduced, the operation steps are reduced, and the operation is more convenient;

10. the power supply is attached to the side face of the bottom plate, so that heat dissipation can be better realized.

Drawings

Fig. 1 is a perspective view of a display unit of an LED display panel according to an embodiment of the present invention;

FIG. 2 is an exploded view of the display unit shown in FIG. 1;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic view of an axial screw;

FIG. 5 is a schematic layout of the power supply and HUB board on the case.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

The embodiment of the invention provides an LED display screen, which comprises a plurality of display units, wherein adjacent display units are positioned through axial screws and are locked and fixed together through lock catches.

Referring to fig. 1 to 5, the display unit includes a case 100, a plurality of display modules 200, 1 HUB board 300, and two power supplies 400.

The case 100 includes a base plate 110 and 4 rims 120, and the rims 120 are disposed around edges of the base plate 110 and fixed to the base plate 110.

The bottom plate 110 is provided with a plurality of fixing posts 111 (see fig. 3 and 5), and a first magnet is disposed on the top of each fixing post 111. The bottom plate 110 is further provided with a cross-shaped rib plate, and the rib plate comprises a transverse rib plate 113 and a vertical rib plate 112. The cross-shaped rib plate is aligned with the splicing seams of the 4 display modules 200, and the top of the rib plate is provided with a groove 114 (see fig. 3) along the splicing seam direction, and the inside of the groove is black. The black grooves are formed in the cross-shaped rib plates, so that the splicing seams between the display modules 200 can be prevented from being transparent and showing white gaps, and the viewing effect of the screen is improved.

In practice, the grooves 114 may be V-shaped grooves, which may be continuous grooves or multiple discontinuous grooves.

The bottom plate 110 is provided with, in addition to the cross rib plate, other rib plates parallel to the horizontal rib plate 113 and the vertical rib plate 112, and each rib plate is provided with a wire passing groove 115 (see fig. 3), where the wire passing groove 115 is used for connecting the second input/output interface 430 with the designated first input/output interface 121 through the rib plate by the integrated wire.

In this embodiment, the number of the fixing posts 111 is large, and the fixing posts may be independently disposed on the bottom plate 110 or may be combined with the rib plate.

Each frame 120 is provided with a first input/output interface 121, and the first input/output interface 121 integrates a power line connector and a signal line connector, for example, the first input/output interface may be a 3+8 input/output interface, that is, integrates 3 power line connectors and 8 signal line connectors.

Each frame 120 is further provided with a shaft screw hole for matching with the shaft screw 130, wherein the shaft screw 130 is used for mounting and positioning between the boxes of adjacent display units.

Referring to fig. 4, the shaft screw 130 includes a fixing shaft 131, an intermediate shaft 132 and a screw shaft 133, the diameter of the fixing shaft 131 is greater than the diameters of the shaft screw hole and the intermediate shaft 132, the intermediate shaft 132 is engaged with the shaft screw hole and has a diameter greater than the diameter of the screw shaft 133, and a chamfer 134 is formed on an outer circumference of a step between the intermediate shaft 132 and the screw shaft 133.

Each bezel 120 is further provided with a latch hole for cooperating with a latch 140, wherein the latch 140 is used for locking and fixing two adjacent display units together.

The power source 400 and the HUB board 300 are fixed on the base plate 110, and the power source 400 and the HUB board 300 are arranged side by side and electrically connected, wherein the two power sources 400 are respectively provided at both sides of the HUB board 300, as shown in fig. 5.

The power supply 400 comprises a power supply box 410 and a power supply circuit board 420 arranged in the power supply box 410, wherein the power supply box 410 is fixed on the bottom plate 110 and is in contact with the bottom plate 110, so that the heat dissipation problem of the power supply 400 is better solved. The power circuit board 420 is provided with a second input/output interface 430, and the second input/output interface 430 integrates a power line connector and a signal line connector corresponding to the first input/output interface 121, wherein the power line connector is electrically connected with the circuit of the power supply, and the signal line connector is electrically connected with the circuit of the HUB board. The second input/output interface 430 is connected to the first input/output interface 121 via an integrated line (not shown) that integrates a power line and a signal line corresponding to the first input/output interface.

In this embodiment, because 4 frames have all set up input/output interface 121, consequently, can realize between the adjacent display module assembly that the level is even about, also can realize that the level is even from top to bottom, and the line of integration is nimble, can support multiple mounting means.

In this embodiment, can also adopt ultra-thin power, further practice thrift the inner space, make whole box accomplish more frivolous.

Be equipped with 4 second boards on HUB board 300 and to board plug connector 310, be used for respectively with the first board of 4 display module assembly 200 to the board plug connector grafting, realize the electricity between HUB board and each display module assembly 200 and be connected.

In this embodiment, two receiving cards may be further disposed on the HUB board 300, and the two receiving cards are respectively connected to the circuit of the HUB board, so that the dual receiving cards and the dual backup of the system are realized.

In this embodiment, the HUB board 300 is disposed at the middle of the bottom board 110, and for the convenience of installation, a plurality of round holes are disposed in the middle of the HUB board 300, so that the fixing posts 111 disposed at the middle of the bottom board 110 extend out through the round holes. And the height of the rib under the HUB board 300 is lowered so that the HUB board 300 can be arranged side by side with the power supply 400.

Each display module 200 is provided with a first board-to-board connector and a plurality of second magnets. Wherein the first board-to-board connector is adapted to mate with a second board-to-board connector 310 on the HUB board 300; the positions of the second magnets correspond to the fixing posts 111 on the bottom plate 110, and attract the first magnets, 4 display modules are fixed on the case 100 according to the arrangement mode of the shape of the Chinese character tian through the magnetic attraction between the first magnets and the second magnets, the edge of the spliced screen is in contact with the top of the frame, and the HUB board 300 and the power supply 400 are sealed in the case.

In practical application, the power can adopt 1 also can adopt a plurality ofly, and when adopting a plurality of power, the both sides of HUB board are located respectively to a plurality of power.

In practical application, the number of the display modules can be 2, or can be multiple (for example, 4 or more), at this time, the bottom plate can be provided with a plurality of rib plates corresponding to the splicing seams among the plurality of display modules, so that the plurality of rib plates are aligned with the splicing seams of the plurality of display modules, and black grooves are formed in the tops of the plurality of rib plates along the splicing seam direction.

The display unit of the embodiment has the following advantages:

1. the number of the display modules is reduced, 4 display modules are adopted, the flatness of the display modules after the display modules are assembled to the box body is improved, and meanwhile, the size of the HUB plate is reduced due to the reduction of the number of the display modules, so that the cost is reduced, and the operation is more convenient;

2. the board-to-board connectors are adopted, wireless connection is realized, the cost is reduced, the operation steps are reduced, and the operation is more convenient;

3. the dual-power-supply dual-receiving card is provided, so that dual backup of the system is realized, and when one power supply or one receiving card fails, the display screen can continue to work normally;

4. an ultrathin power supply is adopted, so that the internal space is saved, and the whole box body can be thinner;

5. the integrated line is adopted, and the power line signal line is integrated into the integrated line, so that wiring is reduced, cost is saved, and maintenance is facilitated;

6. the 4 frames are provided with first input and output interfaces, so that adjacent display modules can be connected in a left-right cascade mode or an upper-lower cascade mode, and various installation wiring modes are supported to facilitate box body arrangement;

7. the box body is positioned by adopting a precise axis screw, and can be positioned and then locked, so that the installation precision of the box body is higher;

8. the display module is maintained before the magnet is adopted, so that the display module is convenient to disassemble and assemble;

9. the power supply and the HUB board are designed side by side, the requirement on the internal space is thinner, and the thickness of the box body is further reduced;

10. the box body is provided with the groove at the joint of the display module, and a white gap cannot be seen at the joint, so that the display effect is better;

11. the power supply is attached to the side face of the bottom plate, so that heat dissipation can be better realized.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The LED display screen is characterized by comprising a plurality of display units, wherein adjacent display units are positioned through shaft position screws and are locked and fixed together by utilizing lock catches:

the display unit comprises a box body and a plurality of display modules:

2. The LED display screen of claim 1, wherein the display unit further comprises a HUB board and a power supply:

3. The LED display screen of claim 2, wherein the number of HUB boards is 1, the number of power supplies is 1 or more:

4. The LED display screen of claim 3, wherein the power supply comprises a power supply box and a power supply circuit board disposed in the power supply box, the power supply box being fixed to the bottom plate and contacting the bottom plate.

5. The LED display screen according to claim 3, wherein the rib plate is further provided with a wire through groove, and the wire through groove is used for enabling an integrated wire to connect the second input/output interface with the designated first input/output interface through the rib plate.

6. The LED display screen of claim 2, wherein each display module is provided with a first board-to-board connector, the first board-to-board connectors corresponding to each display module on the HUB board are provided with second board-to-board connectors, and the display module and the HUB board are connected for power and signal through the board-to-board connectors.

7. The LED display screen of claim 1, wherein each of the frames has a shaft screw hole for engaging with a shaft screw for positioning between the cases of adjacent display units, the shaft screw includes a fixed shaft having a diameter larger than the shaft screw hole and the intermediate shaft, an intermediate shaft having a diameter larger than the screw shaft, and a screw shaft engaging with the shaft screw hole, and an outer circumference of a step between the intermediate shaft and the screw shaft is chamfered.

8. The LED display screen of claim 1, wherein a first magnet is disposed on top of the plurality of fixing posts, and a second magnet attracted to the first magnet is disposed on the display module.

9. The LED display of claim 1, wherein each bezel further comprises a locking hole for engaging a lock, wherein the lock is used to lock and secure the display unit to an adjacent display unit.