CN107507527A - LED display - Google Patents
LED display Download PDFInfo
- Publication number
- CN107507527A CN107507527A CN201710835046.9A CN201710835046A CN107507527A CN 107507527 A CN107507527 A CN 107507527A CN 201710835046 A CN201710835046 A CN 201710835046A CN 107507527 A CN107507527 A CN 107507527A
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- China
- Prior art keywords
- led
- box
- led box
- guide rail
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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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- 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
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention discloses a kind of LED display, including LED box and an at least support component；The LED box includes display surface and the back side relative with the display surface, be provided with the back side at least one along the top of LED box to bottom direction the first guide rail, the first sliding block that can be slided along the first rail is installed on first guide rail；The support component includes base and telescopic support bar, the floor installation is in the bottom of the LED box and positioned at the back side of LED box, one end of the support bar is rotatably connected by the first rotary shaft with the base, the other end of the support bar is rotatably connected by the second rotary shaft with first sliding block, first sliding block is fixed by the first fixture and the first guide rail, through the above way, this programme can adjust the angle of inclination of LED display so that putting for LED display can meet the needs of different.
Description
Technical field
The present invention relates to LED technology field, and in particular to a kind of LED display.
Background technology
When carrying out sports tournament, many advertising devices are often provided with around stadium.Initial billboard is all can only
The print advertisements board of immobilized substance is enough shown, with the development of LED display technology, increasing billboard all uses LED
Display device, so as to show a variety of advertisements.
Existing LED display is typically to show that one or two support bars are installed in the back of casing at it, to cause LED
Display screen can be tilted and stood on ground, but support bar is usually fixed installed in the back of LED display so that LED shows
The angle of inclination of display screen can not be adjusted, and can not meet different occasions puts demand, cause spectators to watch well.
The content of the invention
The embodiment of the present invention provides a kind of LED display, can adjust the angle of inclination of LED display so that LED is shown
Putting for screen can meet the needs of different, be advantageous to spectators' viewing.
The embodiment of the present invention provides a kind of LED display, including LED box and an at least support component；
The LED box includes display surface and the back side relative with the display surface, at least one being provided with the back side
First guide rail in top of the bar along LED box to bottom direction, it is provided with what can be slided along the first rail on first guide rail
First sliding block；
The support component includes base and telescopic support bar, and the floor installation is in the bottom of the LED box
And be rotatably connected positioned at the back side of LED box, one end of the support bar by the first rotary shaft with the base, the support
The other end of bar is rotatably connected by the second rotary shaft with first sliding block, and first sliding block passes through the first fixture and
One guide rail is fixed.
The LED display of the present invention, including LED box and support component, the back side of LED box are provided with the first guide rail,
The first sliding block is provided with first guide rail, support component is arranged on the floor installation at the back side, wherein support component of LED display
In the bottom of LED box, support bar one end of support component is arranged on base, and the other end is connected with the first sliding block, wherein propping up
Strut is expansion link, and the first sliding block is fixed by the first fixture and the first guide rail, because support bar is expansion link, thus works as cunning
Block can drive support bar to stretch when being slided along the first guide rail, and support bar elongates or shortens the inclination that can change LED box
Angle, thus adjust the angle of inclination of LED display so that LED display meets different occasion demands, is advantageous to spectators' sight
See, wherein sliding block can be fixed on when the first sliding block slides into required position on the first guide rail by the first fixture, keep away
Exempt from the slip of the first sliding block.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the rearview of LED display provided in an embodiment of the present invention；
Fig. 2 is the mplifying structure schematic diagram at the circled hash A of the LED display shown in Fig. 1；
Fig. 3 is the method structural representation at the circled hash B of the LED display shown in Fig. 1；
Fig. 4 is the front view of LED display provided in an embodiment of the present invention；
Fig. 5 is the side view of LED display provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Refering to Fig. 1 to Fig. 5, in an embodiment of LED display of the present invention, LED display is including LED box 10 and extremely
Few one group of support component 20.
LED box 10 includes display surface 101 and the back side 102 relative with display surface 101.The display surface 101 is provided with LED
Lamp, shown for realizing, at least one is provided with along the direction of top 103 to bottom 104 of LED box 10 on the back side 102
The direction that first guide rail 11, the i.e. length direction of the first guide rail 11 point to bottom 104 with the top 103 of LED box 10 is consistent.Its
In, the first sliding block 12 that can be slided along the first guide rail 11 is installed on first guide rail 11.
Support component 20 includes base 21 and telescopic support bar 22, and support bar 22 for example can be fluid pressure type support
Bar.Base 21 is a strip support, and one end of base 21 is arranged on the bottom 104 of LED box 10, and is located at LED box
10 back side 102.One end of support bar 22 is rotatably connected by the first rotary shaft 221 with base 21, the other end of support bar 22
It is rotatably connected by the second rotary shaft 222 with the first sliding block 12.
Wherein, as shown in figure 3, being provided with two relative projections 211 on the other end of the base 21 away from LED box 10,
Through hole is offered on two projections 211, through hole is also equipped with one end of support bar 22 and is inserted between two projections 211,
The through hole that first rotary shaft 221 is inserted on two projections 211 and support bar 22, so that support bar 22 and base 21 are rotatable
Connection.It is understood that two projections 211 are fixed on base 21, can be integrally formed with base 21, therefore support bar 22
Position on base 21 is changeless.In addition, as shown in Fig. 2 that relative two are also equipped with the first sliding block 12 is convex
Block 121, through hole is offered on two projections 121, through hole is also equipped with the other end of support bar 22 and is plugged and two projections
Between 121, so as to the through hole on the other end of the second rotary shaft 222 two projections 121 of insertion and support bar 22, so that branch
Strut 22 is rotatably connected with the first sliding block 12.
Wherein, the first sliding block 12 is fixed by the first fixture 122 and the phase of the first guide rail 11.First fixture 122 is for example
It can be bolt, screwed hole can be opened up on the first sliding block 12, then bolt is torqued into screwed hole, when bolt is tightened
The first sliding block 12 can be caused to be fixed on the first guide rail 11 without arbitrarily sliding.Alternatively, in order to improve the first sliding block 12
Fastness, multiple fixing holes 111, slip of multiple fixing holes 111 along the first sliding block 12 can be set on the first guide rail 11
Direction is arranged in order, the first fixture 122 optionally can coordinate with one of fixing hole 111 with by the first sliding block 12 and
The phase of first guide rail 11 is fixed, and specifically, the first fixture 122 penetrates the screwed hole and the first guide rail 11 of the first sliding block 12 successively
On fixing hole 111, tightening the first fixture 122 can mutually fix the first sliding block 12 with the first guide rail 11, side simple to operate
Just.
The LED display of the present embodiment, base 21, support bar 22 and LED box 10 form triangular shape, so as to utilize base
21 and support bar 22 can support LED box 10.Wherein, support can be driven when the first sliding block 12 slides along the first guide rail 11
Bar 22 is flexible, and support bar 22 elongates or shortens the angle of inclination that will change between LED box 10 and ground, and the first sliding block 12 is got over
Up the inclined degree of slip LED box 10 is bigger, i.e., the angle of inclination between ground is smaller, so as to realize LED display
Angle of inclination regulation.Wherein, when the first sliding block 12 slides into desired position, can be incited somebody to action by the first fixture 122
First sliding block 12 is fixed, and avoids the first sliding block 12 from gliding.
In addition, in order to be more convenient the angle of inclination of adjustment LED box 10, angle can be set on each side of fixing hole 111
Scale knows 112, to show when the first sliding block 12 slides into the position of some fixing hole 111 between LED box 10 and ground
Angle of inclination, angle mark 112 are, for example, specific angle, and such as corresponding angle identifies multiple fixing holes 111 from the bottom up
112 are followed successively by 90 °, 85 °, 80 °, 75 °, 70 °, wait by that analogy.
With continued reference to Fig. 1, in the embodiment of the present invention, the quantity of the first guide rail 11 and support component 20 is two.Wherein exist
In a kind of possible embodiment, two guide rails 11 are separately positioned on the side frame of left and right two 105,106 of LED box 10,
One support component 20 is corresponding to be engaged with first guide rail 11 to support LED box 10, the i.e. left and right two in LED box 10
Side is provided with support component 20 to support LED box 10 jointly.
Further, LED display also includes power control box 30.Power control box 30 is used to provide power supply, with driving
LED box 10 is shown.Power control box 30 is fixed on the back side 102 of LED box 10 by the second fixture 31.For example, the
Two fixtures 31 can be bolt or buckle etc., by taking bolt as an example, for the ease of mounting and dismounting power control box 30, in electricity
Fluted support 32 is set in source control box 30, block support 13, block support 13 are provided with the back side 102 of LED box 10
In the groove of embedded groove support 32, and fixed by the second fixture 31 (i.e. bolt) with groove support 32.Wherein, groove branch
The bottom portion of groove of frame 32 is provided with screwed hole, and the side in block support 13 with the bottom portion of groove of adjacent recess support 32 is also provided with
There is a screwed hole, the screwed hole that the second fixture 31 penetrates on the screwed hole on groove support 32 and block support 13 successively, and then
Groove support 32 and block support 13 are fixed together, so as to which power control box 30 to be fixed on to the back side of LED box 10
102。
Wherein, power control box 30 includes two relative sides 33 and 34, two side 33,34 respectively with LED box 10
Two side frames 105,106 be rotatably connected by rotary shaft.For example, on two side frames 105,106 of LED box 10
A deck 107 is provided with, through hole or groove can be such as offered on deck 107.Two sides 33,34 of power control box 30
On be provided with a rotary shaft 35, one end of rotary shaft 35 is fixed on power control box 30, and the other end is stretched on deck 107
In through hole or groove.Thus, rotary shaft 35 can rotate around with the contact point of deck 107.Wherein, it is additionally provided with deck 107
One opening 1071, the opening 1071 connects with the through hole on deck 107 or groove, and rotary shaft 35 can be put into card from the opening 1071
In through hole or groove on seat 107.
When the back side 102 that the second fixture 31 is departed to LED box 10, i.e., by the second fixture 31 from block support 13
When screwed hole is back-outed, it can make it that power control box 30 is rotated using rotary shaft 35, such as can be by power control box 30 to remote
Direction from LED box 10 is rotated to turn on the power control box 30, or by power control box 30 to close to the side of LED box 10
To rotation to close power control box 30, without power control box 30 is pulled down, facilitate the maintenance of maintenance personal.
Wherein, it is additionally provided with power control box 30 and carries handle 36, the quantity for carrying handle 36 can be one or two, etc.,
Guided and supported with facilitating.
In embodiments of the present invention, mounting and fixing support 14 on the bottom 104 of LED box 10, base 21 pass through the 3rd rotation
Axle 212 is rotatably connected with fixed mount 14.Wherein, fixed mount 14 is groove structure, and its slot opening faces base 21, bottom portion of groove
It can be then fixed on by the mode such as being spirally connected or welding on the bottom 104 of LED box 10, two sides of fixed mount 14 are provided with
Through hole.Base 21 is provided with through hole, one convex by being also equipped with two projections on one end through LED box 10 on two projections
One side of block and fixed mount 14 is close, and another side of another projection and fixed mount 14 is close, and the 3rd rotary shaft 212 passes through
Through hole on two projections and the through hole on two sides of fixed mount 14, so that base 21 and fixed mount 14 are rotatably connected.
Wherein, base 21 is located at the lower section of LED box 10.Base 21 for example can be groove structure, in the recessed of base 21
The second guide rail 213 is provided with groove, the second sliding block 214 is provided with the second guide rail 213.Second sliding block 214 can be led along second
Rail 213 slides, wherein, when the second sliding block 214 slides towards the direction of LED box 10, one end of the second sliding block 214 can be certainly
The lower section of LED box 10 slides into the side of display surface 101 of LED box 10, and thus, one end of the second sliding block 214 can be in LED
The side of the display surface 101 support LED box 10 of casing 10, prevents LED box from dumping forward.
Further, the second sliding block 214 can be fixed by the 3rd fixture 2141 and the phase of the second guide rail 213, and the 3rd is solid
It for example can be bolt to determine part 2141, and the fixation principle between its fixation principle and the first sliding block 12 and the first guide rail 11 is similar
Seemingly, herein without repeating one by one.
It is rotatable connection between base 21 and LED box 10, it is possible to achieve the receipts of support component 20 in the embodiment of the present invention
Contracting and stretching, extension.Specifically, when needing to shrink support component 20, the first fixture 122 is unclamped to cause the first sliding block 12
Releasing orientation is in the first guide rail 11, the first sliding block 12 can slide along the first guide rail 11, then by the pine of the 3rd fixture 2141
Open, then take out the second sliding block 214 from base 21, be i.e. the second sliding block 214 departs from base 21, then by the direction of base 21
The direction of LED box 10, which rotates, packs up, and has driven support bar 22 to stretch upwards, and the first sliding block 12 is in the presence of support bar 22
Upward sliding, the stretching, extension for support bar 22 provide space, until base 21 and support bar 22 draw a straight line, so as to support
Component 20 is packed up, convenient storage and transport.
When needing to deploy support component 20 to support LED box 10, by base 21 to the direction away from LED box 10
Rotation, so as to drive support bar 22 to shrink, the first sliding block 12 also slides into corresponding position, can will when base 21 is fully deployed
Second sliding block 2141 is put into base 21, and one end of second sliding block 2141 is slided out into LED box 10 from the lower section of LED box 10
The side of display surface 101, with the side of display surface 101 of LED box 10 support LED box, then utilize the 3rd fixture
2141 fix the second sliding block 214.Afterwards, the first sliding block 12 can be slided as needed, to drive support bar 22 flexible or open up
Open, and then adjust the angle of inclination of LED box 10, when being adjusted to suitable position, slided using the first fixture 122 by first
Block 12 is fixed.
Alternatively, the brim of a hat 15 is also set up on the top 103 of LED box 10.15 curved shape of the brim of a hat, it is turned under outside it
Song, so as to be the rain cover of LED box 10.In addition, two pad 16 in left and right are additionally provided with the bottom surface of LED box 10,
The height of pad 16 can be highly consistent with base 21, so as to which pad 16 and base 21 support LED box 10 jointly.
Wherein, the LED display of the embodiment of the present invention, additionally it is possible to splice with other LED displays to realize bigger show
Show area.Specifically, as shown in figure 4, being provided with neck 1051 on the side frame 105 of LED box 10, the neck 1051 and side
Frame 105 is rotatably connected by rotary shaft, for the buckle clamping of the LED box with other LED displays, the side of LED box 10
Buckle 1061 is provided with frame 106, the neck clamping for the LED box with other LED displays.When LED box 10
When the side of side frame 105 and other LED boxes are spliced, then can by rotating neck 1051 to the buckle of other LED boxes,
So as to realize splicing.
In addition, as shown in figure 5, be additionally provided with positioning hole 1052 on side frame 105, positioning is additionally provided with side frame 106
Pin 1062.When LED box 10 and other LED boxes are spliced, the alignment pin 1062 on side frame 106 inserts other LED boxes
Positioning hole in, the alignment pin of other LED boxes is then inserted in the positioning hole 1052 of side frame 105, during so as to realize splicing
Positioning, facilitates the splicing of LED box.
Wherein, through hole 17 is additionally provided with side frame 105 and side frame 106, the company being connected with power control box 30
Wiring can pass through from the through hole 17, convenient wiring.
In other embodiments of the invention, first guide rail and a support component can also be only set, for example, can
So that the first guide rail to be arranged on to the centre position at the LED box back side, support component also is located at the centre position of LED box, so as to
It is engaged with the first guide rail to support LED box, and the regulation at the angle of inclination of LED box can be realized.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of LED display, it is characterised in that including LED box and an at least support component；
The LED box includes display surface and the back side relative with the display surface, at least one edge being provided with the back side
First guide rail in the top of LED box to bottom direction, can slide along the first rail first is installed on first guide rail
Sliding block；
The support component includes base and telescopic support bar, and the floor installation is in the bottom of the LED box and position
In the back side of LED box, one end of the support bar is rotatably connected by the first rotary shaft with the base, the support bar
The other end is rotatably connected by the second rotary shaft with first sliding block, and first sliding block is led by the first fixture and first
Rail is fixed.
2. LED display according to claim 1, it is characterised in that multiple fixing holes are provided with first guide rail,
Glide direction of the multiple fixing hole along the first sliding block is arranged in order, and first fixture is optionally solid with one of them
Determine hole to coordinate so that the first sliding block and the first guide rail mutually to be fixed.
3. LED display according to claim 1, it is characterised in that the quantity of the support component is two, described first
The quantity of guide rail is also two, and each support component is corresponding to be engaged to support LED box with first guide rail.
4. LED display according to claim 1, it is characterised in that also including power control box；
The power control box is fixed on by the second fixture on the back side of the LED box, and the power control box bag
Two relative sides are included, two sides of the LED box are connected with the flexible rotary shaft of crossing in the both sides of the power control box respectively.
5. LED display according to claim 4, it is characterised in that second fixture is bolt, the power supply control
Fluted support is set on box processed, block support is provided with the back side of the LED box, the block support insertion is described recessed
In the groove of groove support, and fixed by the bolt and groove support.
6. LED display according to claim 4, it is characterised in that be additionally provided with the power control box and carry handle.
7. LED display according to claim 1, it is characterised in that be provided with fixation on the bottom of the LED box
Frame, the base are rotatably connected by the 3rd rotary shaft with the fixed mount.
8. LED display according to claim 7, it is characterised in that the base is located under the LED box, institute
It is groove structure to state base, and the second guide rail is provided with the groove of the base, the second cunning is provided with second guide rail
Block, and one end of second sliding block can slide into the display surface side of LED box from below the LED box.
9. LED display according to claim 1, it is characterised in that the top of the LED box is provided with the brim of a hat, institute
The outside for stating the brim of a hat is bent downwardly.
10. LED display according to claim 1, it is characterised in that be provided with card on a side of the LED box
Button, is connected with the neck of the LED box with other LED displays, neck is provided with another side of the LED box,
With snapping connection for the LED box with other LED displays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835046.9A CN107507527A (en) | 2017-09-15 | 2017-09-15 | LED display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835046.9A CN107507527A (en) | 2017-09-15 | 2017-09-15 | LED display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107507527A true CN107507527A (en) | 2017-12-22 |
Family
ID=60697435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710835046.9A Pending CN107507527A (en) | 2017-09-15 | 2017-09-15 | LED display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107507527A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036169A (en) * | 2017-12-30 | 2018-05-15 | 广州市高博林电子有限公司 | Sitting posture display screen and sitting posture assembly display screen |
| CN108039129A (en) * | 2017-12-27 | 2018-05-15 | 深圳市大族元亨光电股份有限公司 | LED box and LED display |
| CN111276059A (en) * | 2020-02-21 | 2020-06-12 | 上海天马微电子有限公司 | Connecting device, panel assembly and splicing type display equipment |
| CN114791069A (en) * | 2022-01-20 | 2022-07-26 | 岳喜柱 | Liquid crystal display screen capable of being freely combined |
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| CN114791069A (en) * | 2022-01-20 | 2022-07-26 | 岳喜柱 | Liquid crystal display screen capable of being freely combined |
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