CN110242834B - Back frame device and LED display screen - Google Patents
Back frame device and LED display screen Download PDFInfo
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- CN110242834B CN110242834B CN201910493027.1A CN201910493027A CN110242834B CN 110242834 B CN110242834 B CN 110242834B CN 201910493027 A CN201910493027 A CN 201910493027A CN 110242834 B CN110242834 B CN 110242834B
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- back frame
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- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a back frame device and an LED display screen, and belongs to the technical field of LED display screens. The back frame device comprises a plurality of back frame modules which are arranged side by side; the back frame module comprises a first back frame unit, a second back frame unit and a base, the second back frame unit is detachably connected to the base, and the first back frame unit and the second back frame unit are movably connected through a multi-connecting-rod lifting mechanism; the bases of every two adjacent back frame modules are movably connected through a multi-connecting-rod angle adjusting mechanism, so that each multi-connecting-rod angle adjusting mechanism drives one back frame module to do arc motion relative to the other adjacent back frame module through a micrometric adjusting piece with scale marks. The back frame device and the LED display screen have the advantages of large angle adjusting range, high adjusting precision, simple structure, convenience in operation, capability of greatly reducing labor cost and using mechanical cost and the like.
Description
Technical Field
The invention relates to the technical field of LED display screen assembly, in particular to a back frame device and an LED display screen.
Background
At present, large-scale open air LED display screen generally adopts the combination form of back of the body frame with the LED box, supports the LED box through back of the body frame structure, and traditional back of the body frame does not have angle adjusting device like the day-shaped frame, installs angle adjusting device on the box more for angle of regulation is limited, and simultaneously, current back of the body frame is one section concatenation of one section more and forms, relies on manpower or other elevating system to accomplish, has increased the cost of labor and has used mechanical cost.
Disclosure of Invention
The invention mainly aims to provide a back frame device and an LED display screen, and aims to solve the problems that the traditional back frame is limited in adjusting angle, inconvenient to lift and easy to increase labor cost and use mechanical cost and the like.
In order to achieve the above object, the present invention provides a back frame device, which comprises a plurality of back frame modules arranged side by side; the back frame module comprises a first back frame unit, a second back frame unit and a base, the second back frame unit is detachably connected to the base, and the first back frame unit is movably connected with the second back frame unit through a multi-connecting-rod lifting mechanism; the bases of every two adjacent back frame modules are movably connected through a multi-connecting-rod angle adjusting mechanism, so that each multi-connecting-rod angle adjusting mechanism drives one back frame module to do arc motion relative to the other back frame module adjacent to the back frame module through a micrometric adjusting piece with scale marks.
Optionally, the multi-link angle adjusting mechanism further includes a first long link, a second long link, a first short link, and a second short link, and the first long link and the second long link are arranged in a staggered rotation manner; one end of the first long connecting rod and one end of the second long connecting rod are movably connected with a base of the back frame module through the micrometric regulating piece respectively; the other end of the first long connecting rod is connected with the other adjacent base of the back frame module through the first short connecting rod, the other end of the second long connecting rod is connected with the other adjacent base of the back frame module through the second short connecting rod, and all the joints are in rotating connection.
Optionally, the middle portions of the first long connecting rod and the second long connecting rod are arranged in a staggered manner, and are rotatably connected through a long pin shaft.
Optionally, the multi-link lifting mechanism includes a vertical link, a horizontal link, two first links, two second links, two first fixed short rods, and two second fixed short rods; a connecting rod movable mounting groove is formed in one side, away from the second back frame unit, of the base, so that one end of the vertical connecting rod is correspondingly mounted; the middle part of the horizontal connecting rod is rotatably connected with the middle part of the vertical connecting rod; the two first fixed short rods are oppositely arranged at the lower part of the first back frame unit, and the two second fixed short rods are oppositely arranged at the upper part of the second back frame unit; a barb structure is arranged in the middle of the first connecting rod, so that the first connecting rod comprises a first end, a second end and a third end; the bottom of the second connecting rod is provided with a barb structure, so that the second connecting rod comprises a first end and a second end; the horizontal connecting rod is connected between the third ends of the two first connecting rods, one first fixed short rod is connected between the first end of one first connecting rod and the first end of the adjacent second connecting rod, one second fixed short rod is connected between the second end of one first connecting rod and the second end of the adjacent second connecting rod, and all the joints are in rotating connection.
Optionally, the first back frame unit and the adjacent second back frame unit are fastened and connected through a plurality of detachable horizontal connecting plates.
Optionally, the first back frame unit of the back frame module is fastened and connected with the first back frame unit of another adjacent back frame module through a plurality of detachable angle connection plates; and the second back frame unit of the back frame module is fixedly connected with the second back frame unit of the other adjacent back frame module through a plurality of detachable angle connecting plates.
Optionally, the base is supported by a plurality of caster structures.
Optionally, the first back frame unit and the second back frame unit respectively include a driving platform and a plurality of frames, and each side of the driving platform is connected to one of the frames.
In addition, in order to achieve the above object, the present invention further provides an LED display screen, where the LED display screen includes a plurality of LED boxes and the above back frame device, and one side of each frame is correspondingly fixed with one of the LED boxes.
Optionally, a power module, a HUB board and a receiving card are arranged in the driving platform, so that the driving platform supplies power and controls signals for the plurality of LED boxes mounted on the corresponding first back frame unit or the second back frame unit.
The invention provides a back frame device and an LED display screen, which comprise a plurality of back frame modules arranged side by side; the back frame module comprises a first back frame unit, a second back frame unit and a base, wherein the first back frame unit and the second back frame unit are movably connected through a multi-connecting-rod lifting mechanism, so that the first back frame unit is lifted and installed through the multi-connecting-rod lifting mechanism, meanwhile, the bases of every two adjacent back frame modules are movably connected through a multi-connecting-rod angle adjusting mechanism, each multi-connecting-rod angle adjusting mechanism orders about another back frame module which is relatively adjacent through a micrometric adjusting piece with a scale mark, the back frame modules perform arc motion, and the angle adjustment between the two back frame modules can be realized through the multi-connecting-rod angle adjusting mechanism. Therefore, the back frame device and the LED display screen can realize that the LED box body and the driving platform ascend together through the multi-connecting-rod lifting mechanism, a large lifting mechanism and excessive human resources are not needed, and the installation cost is reduced; meanwhile, the multi-connecting-rod angle adjusting mechanism can realize angle adjustment of the back frame by utilizing a connecting rod principle, has the advantages of large angle adjusting range (the adjusting angle changes between 20 degrees of outer radian and 60 degrees of inner arc) and high adjusting precision (the angle adjusting precision can be ensured by a micrometric adjusting piece with scale marks), and the like, and also has the advantages that the back frame unit of the frame structure supports the LED box body, so that the LED box body can be maintained front and back at the same time, and the operation is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an LED display screen according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a split structure of a back frame module of the LED display screen shown in fig. 1.
Fig. 3 is a schematic view of a partial structure of the LED display screen shown in fig. 1 in a folded state.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and fig. 2, an embodiment of the invention provides an LED display screen 1, where the LED display screen 1 includes a plurality of LED boxes 100 and a back frame device 200, and the back frame device 200 includes a plurality of back frame modules 210 arranged side by side. The back frame module 210 includes a first back frame unit 211, a second back frame unit 212 and a base 213, the second back frame unit 212 is detachably connected to the base 213 (the second back frame unit 212 is fixed to the base 213 through a screw structure or a buckle structure to realize detachable connection therebetween), and the first back frame unit 211 and the second back frame unit 212 are movably connected through a multi-link lifting mechanism 214. The bases 213 of two adjacent back frame modules 210 are movably connected by a multi-link angle adjusting mechanism 220, so that each multi-link angle adjusting mechanism 220 drives one back frame module 210 to perform arc motion relative to the other adjacent back frame module 210 through a micrometric adjusting part 221 with a scale mark.
In the present embodiment, as shown in fig. 1, the multi-link angle adjusting mechanism 220 further includes a first long link 222, a second long link 223, a first short link 224 and a second short link 225, wherein the first long link 222 and the second long link 223 are alternately and rotatably disposed. One end of the first long connecting rod 223 and one end of the second long connecting rod 224 are movably connected with the base 213 of a back frame module 210 through the micrometer adjusting member 221. The other end of the first long link 222 is connected to the base 213 of another adjacent back frame module 210 by a first short link 224, the other end of the second long link 223 is connected to the base 213 of another adjacent back frame module 210 by a second short link 225, and all the joints are rotatably connected. Specifically, the middle portions of the first long link 222 and the second long link 223 are disposed alternately, and are rotatably connected to each other by a long pin. In this way, the angle adjustment between the two back frame modules 210 can be realized by the fine adjustment of the micrometer adjustment member 221 (the adjusted angle can be directly read out through the numerical value on the scale mark).
As shown in fig. 2, the multi-link lifting mechanism 214 includes a vertical link 2141, a horizontal link 2142, two first links 2143, two second links 2144, two first fixing short rods 2145, and two second fixing short rods 2146. A link movable mounting groove 2131 is disposed on a side of the base 213 away from the second back frame unit 212 to correspondingly mount an end of the vertical link 2141. The middle of the horizontal link 2142 is rotatably connected to the middle of the vertical link 2141. The two first fixing short bars 2145 are oppositely disposed at a lower portion of the first back frame unit 211, and the two second fixing short bars 2146 are oppositely disposed at an upper portion of the second back frame unit 212. The first link 2143 has a barb structure at the middle portion thereof, such that the first link 2143 includes a first end 21, a second end 22 and a third end 23. The bottom of the second link 2144 is provided with a barb structure such that the second link 2144 includes a first end 24 and a second end 25. The horizontal connecting rods 2142 are connected between the third ends 23 of the two first connecting rods 2143, a first fixed short rod 2145 is connected between the first end 21 of one first connecting rod 2143 and the first end 24 of an adjacent second connecting rod 2144, a second fixed short rod 2146 is connected between the second end 22 of one first connecting rod 2143 and the second end 25 of an adjacent second connecting rod 2144, and all the joints are rotatably connected. The connecting rod movable mounting groove 2131 is provided with a limiting notch 26, which can limit the vertical connecting rod 2141 to turn ninety degrees away from one side of the back frame unit (including the first back frame unit 211 and the second back frame unit 212), so that the vertical connecting rod 2141 is controlled to turn ninety degrees, and the connecting rods can be sequentially driven to rotate, so as to finally realize the lifting of the first back frame unit 211, and thus the first back frame unit 211 can be freely switched between a position (shown in fig. 3) right in front of the second back frame unit 212 and a position (shown in fig. 1) right above the second back frame unit 212.
As shown in fig. 2, the first back frame unit 211 and the adjacent second back frame unit 212 are fastened and connected by a plurality of detachable horizontal connection plates 27, that is, after the first back frame unit 211 is adjusted by the multi-link lifting mechanism 214 to be located right above the second back frame unit 212, the adjusted fastening and connection between the first back frame unit 211 and the adjacent second back frame unit 212 can be realized by the detachable horizontal connection plates 27. Meanwhile, the first back frame unit 211 of the back frame module 210 is fastened and connected with the first back frame unit 211 of another adjacent back frame module 210 through a plurality of detachable angle connection plates 28, and the second back frame unit 212 of the back frame module 210 is fastened and connected with the second back frame unit 212 of another adjacent back frame module 210 through a plurality of detachable angle connection plates 29. The detachable angle connecting plate 29 has different angles according to actual needs, and the adjusted fastening connection between the two back frame modules 210 is realized by adopting the detachable angle connecting plate 29 with corresponding angles according to the specific angle adjusted between the two adjacent back frame modules 210.
As shown in fig. 1, the base 213 is supported by a plurality of caster structures 230, which facilitate the transportation of the entire back frame device 200. The first frame back unit 211 includes a driving platform 2111 and a plurality of frames 2112, each side of the driving platform 2111 is connected to one frame 2112, preferably, the driving platform 2111 and the frames 2112 in this embodiment both adopt a diamond structure, the number of the frames 2112 is specifically four, each side of the driving platform 2111 is connected to one frame 2112, so that the first frame back unit 211 forms a central symmetrical pattern with the driving platform 2111 as a center, and one side of each frame 2112 is correspondingly provided with and fixed to one LED box 100. Similarly, the second back frame unit 212 includes a driving platform 2121 and four frames 2122, each side of the driving platform 2121 is connected to a frame 2122, preferably, the driving platform 2121 and the frames 2122 in this embodiment are diamond-shaped, the number of the frames 2122 is four, each side of the driving platform 2121 is connected to a frame 2122, so that the second back frame unit 212 forms a central symmetrical pattern with the driving platform 2121 as the center, and one side of each frame 2122 is correspondingly fixed to a LED box 100. In addition, each of the driving platforms 2111 and 2121 incorporates a power supply module, a HUB (multi-port repeater) board, and a receiving card to supply power and control signals to the plurality of LED boxes 100 mounted on the corresponding first back frame unit 211 or second back frame unit 212 through the driving platform 2111 or 2121. In this way, the power module, HUB (multi-port transponder) board and receiving card originally placed in each LED box 100 are all placed in the corresponding driving platforms 2111 and 2121, so that the LED box 100 is optimized, the weight of the LED box 100 is reduced, the transportation of the LED box 100 is facilitated, and the collision is reduced.
The back frame device and the LED display screen provided by the embodiment of the invention comprise a plurality of back frame modules which are arranged side by side; the back frame module comprises a first back frame unit, a second back frame unit and a base, wherein the first back frame unit and the second back frame unit are movably connected through a multi-connecting-rod lifting mechanism, so that the first back frame unit is lifted and installed through the multi-connecting-rod lifting mechanism, meanwhile, the bases of every two adjacent back frame modules are movably connected through a multi-connecting-rod angle adjusting mechanism, each multi-connecting-rod angle adjusting mechanism orders about another back frame module which is relatively adjacent through a micrometric adjusting piece with a scale mark, the back frame modules perform arc motion, and the angle adjustment between the two back frame modules can be realized through the multi-connecting-rod angle adjusting mechanism. Therefore, the back frame device and the LED display screen can realize that the LED box body and the driving platform ascend together through the multi-connecting-rod lifting mechanism, a large lifting mechanism and excessive human resources are not needed, and the installation cost is reduced; meanwhile, the multi-connecting-rod angle adjusting mechanism can realize angle adjustment of the back frame by utilizing a connecting rod principle, has the advantages of large angle adjusting range (the adjusting angle changes between 20 degrees of outer radian and 60 degrees of inner arc) and high adjusting precision (the angle adjusting precision can be ensured by a micrometric adjusting piece with scale marks), and the like, and also has the advantages that the back frame unit of the frame structure supports the LED box body, so that the LED box body can be maintained front and back at the same time, and the operation is convenient.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (10)
1. A back frame device comprises a plurality of back frame modules arranged side by side; the back frame module comprises a first back frame unit, a second back frame unit and a base, and the second back frame unit is detachably connected to the base; the bases of every two adjacent back frame modules are movably connected through a multi-connecting-rod angle adjusting mechanism, so that each multi-connecting-rod angle adjusting mechanism drives one back frame module to do arc motion relative to the other back frame module adjacent to the back frame module through a micrometric adjusting piece with scale marks.
2. The back frame device according to claim 1, wherein the multi-link angle adjusting mechanism further comprises a first long link, a second long link, a first short link, and a second short link, the first long link and the second long link being alternately and rotatably disposed; one end of the first long connecting rod and one end of the second long connecting rod are movably connected with a base of the back frame module through the micrometric regulating piece respectively; the other end of the first long connecting rod is connected with the other adjacent base of the back frame module through the first short connecting rod, the other end of the second long connecting rod is connected with the other adjacent base of the back frame module through the second short connecting rod, and all the joints are in rotating connection.
3. The back frame device according to claim 2, wherein the middle portions of the first long link and the second long link are alternately disposed and rotatably connected to each other by a long pin shaft.
4. The back frame device according to claim 1, wherein the multi-link lifting mechanism comprises a vertical link, a horizontal link, two first links, two second links, two first fixed short bars, and two second fixed short bars; a connecting rod movable mounting groove is formed in one side, away from the second back frame unit, of the base, so that one end of the vertical connecting rod is correspondingly mounted; the middle part of the horizontal connecting rod is rotatably connected with the middle part of the vertical connecting rod; the two first fixed short rods are oppositely arranged at the lower part of the first back frame unit, and the two second fixed short rods are oppositely arranged at the upper part of the second back frame unit; a barb structure is arranged in the middle of the first connecting rod, so that the first connecting rod comprises a first end, a second end and a third end; the bottom of the second connecting rod is provided with a barb structure, so that the second connecting rod comprises a first end and a second end; the horizontal connecting rod is connected between the third ends of the two first connecting rods, one first fixed short rod is connected between the first end of one first connecting rod and the first end of the adjacent second connecting rod, one second fixed short rod is connected between the second end of one first connecting rod and the second end of the adjacent second connecting rod, and all the joints are in rotating connection.
5. The back frame device according to claim 1, wherein the first back frame unit and the adjacent second back frame unit are fastened and connected through a plurality of detachable horizontal connecting plates.
6. The back frame device according to claim 1, wherein the first back frame unit of the back frame module is fastened and connected with the first back frame unit of another adjacent back frame module through a plurality of detachable angle connection plates; and the second back frame unit of the back frame module is fixedly connected with the second back frame unit of the other adjacent back frame module through a plurality of detachable angle connecting plates.
7. The back frame apparatus of claim 1, wherein the base is supported by a plurality of caster structures.
8. The back frame device according to any one of claims 1-7, wherein the first back frame unit and the second back frame unit respectively comprise a driving platform and a plurality of frames, and each side of the driving platform is connected with one of the frames.
9. An LED display screen, characterized in that, the LED display screen comprises a plurality of LED boxes and the back frame device of claim 8, one side of each frame is correspondingly provided with one LED box.
10. The LED display screen of claim 9, wherein the driving platform is provided with a power module, a HUB board and a receiving card inside, so as to supply power and control signals to the plurality of LED boxes installed on the corresponding first or second back frame unit through the driving platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493027.1A CN110242834B (en) | 2019-06-06 | 2019-06-06 | Back frame device and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493027.1A CN110242834B (en) | 2019-06-06 | 2019-06-06 | Back frame device and LED display screen |
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| Publication Number | Publication Date |
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| CN110242834A CN110242834A (en) | 2019-09-17 |
| CN110242834B true CN110242834B (en) | 2020-12-01 |
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| CN201910493027.1A Active CN110242834B (en) | 2019-06-06 | 2019-06-06 | Back frame device and LED display screen |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953444B (en) * | 2019-11-21 | 2021-09-21 | 深圳市洲明科技股份有限公司 | Lifting device and LED display screen |
| CN111627348B (en) * | 2020-06-17 | 2022-09-20 | 湖南新亚胜光电股份有限公司 | Folding back frame and LED display |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060017658A1 (en) * | 2004-03-15 | 2006-01-26 | Onscreen Technologies, Inc. | Rapid dispatch emergency signs |
| US8104204B1 (en) * | 2007-08-29 | 2012-01-31 | Daktronics, Inc. | Electronic sign having vertically hinged face panel doors |
| CN202917114U (en) * | 2012-10-31 | 2013-05-01 | 合肥瑞华电子科技有限责任公司 | Light emitting diode (LED) display screen back supporting frame |
| CN203036197U (en) * | 2012-11-21 | 2013-07-03 | 深圳市奥拓电子股份有限公司 | Modular mounting bracket of light-emitting diode (LED) display unit box |
| CN203927262U (en) * | 2014-06-20 | 2014-11-05 | 田艺儿 | A kind of LED screen backrest |
| CN205582407U (en) * | 2016-04-27 | 2016-09-14 | 深圳市光祥科技有限公司 | Novel fixed back of body frame of LED display screen |
| CN208706174U (en) * | 2018-07-24 | 2019-04-05 | 深圳市创显光电有限公司 | A kind of Multifunctional LED display device of Fast Installation |
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