CN113223412B - Flexible folding display screen structure - Google Patents
Flexible folding display screen structure Download PDFInfo
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- CN113223412B CN113223412B CN202110489915.3A CN202110489915A CN113223412B CN 113223412 B CN113223412 B CN 113223412B CN 202110489915 A CN202110489915 A CN 202110489915A CN 113223412 B CN113223412 B CN 113223412B
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention is applicable to the technical field of folding display screens, and provides a flexible folding display screen structure, which comprises: at least two frame bodies that set up relatively, every the holding groove has all been seted up to the inside of frame body, and every the inside of holding groove is all held and is fixed with a display screen group, a locking device, every all detachable fixedly connected with on the both sides wall that the frame body symmetry set up locking device, stir the piece through pulling on the installation piece for the locking piece contracts in to the cavity, then, the staff places the installation piece in the slotted hole, and extend the locking piece to the mounting inslot and fix the installation piece, through mounting groove and locking piece, can make the installation of installation piece fastening fix on the frame body, avoid taking place to drop, simultaneously, the staff connects a connection structure between two adjacent frame bodies, and set up connection structure's both ends on two installation pieces.
Description
Technical Field
The invention belongs to the technical field of folding display screens, and particularly relates to a flexible folding display screen structure.
Background
The LED display screen is a display product which emits light by controlling the light emitting diode, is widely applied to the fields of outdoor advertisement, caption, stage background effect and the like due to the characteristics of high luminous efficiency, long service life, safety, reliability, environmental protection and energy conservation, and the like, and the flexible LED display screen is an LED display screen which can be combined into different shapes according to different purposes, has the characteristics of light weight, thin thickness, transparency and the like, and is an ideal stage background effect LED display screen.
At present, when the flexible LED display screen is combined, the fasteners or binding are used for connecting the upper part, the lower part, the left part and the right part, the installation and the disassembly processes are complicated, time-consuming and labor-consuming, and the display screen is easy to damage.
Disclosure of Invention
The present invention provides a flexible folding display screen structure, which aims to solve the problems mentioned in the background art.
The invention is realized in that a flexible folding display screen structure comprises:
at least two oppositely arranged frame bodies, wherein an accommodating groove is formed in each frame body, and a display screen group is accommodated and fixed in each accommodating groove;
the locking devices are detachably and fixedly connected to the two side walls of each frame body symmetrically arranged;
the connecting structure is fixedly connected between the locking devices on the two adjacent frame bodies, and the two frame bodies are fixedly connected through the connecting structure; the method comprises the steps of,
and the two ends of the fixing component are fixedly connected to the locking device respectively and used for clamping and limiting the connecting structure.
Preferably, the connecting structure comprises third connecting bodies which are arranged at two ends and fixedly connected with the locking device, a plurality of first connecting bodies and second connecting bodies are sequentially distributed between the two third connecting bodies at intervals, a second connecting body is arranged between every two adjacent first connecting bodies, the first connecting bodies comprise a first connecting seat, a bump is uniformly formed on two side walls symmetrically arranged on the first connecting seat, the second connecting bodies comprise a second connecting seat with the same size as the first connecting seat, a first groove capable of accommodating the bump is formed on two side walls oppositely arranged on the second connecting seat, the third connecting bodies comprise a third connecting seat with the same size as the second connecting seat, and a second groove capable of accommodating the bump is formed on one side wall, close to the third connecting seat.
Preferably, the protruding block is an arc-shaped protrusion, and the first groove and the second groove are arc-shaped grooves matched with the arc-shaped protrusion.
Preferably, a slot hole capable of accommodating the locking device is formed in each of two side walls symmetrically arranged on the frame body, an installation groove is formed in each of two side inner walls of the slot hole, the locking device comprises an installation block fixedly connected with the third connecting body, and locking blocks which extend into the corresponding installation grooves are arranged on the two side walls of the installation block in a telescopic sliding manner.
Preferably, the inside of installation piece has the cavity, just a intercommunication has all been seted up on the both sides wall of installation piece the perforation of cavity, two the equal gliding holding of latch segment corresponds in the perforation, every the latch segment is located one end in the cavity is all fixedly connected with reset spring, two is corresponding to the top of installation piece a sliding tray has been seted up to the latch segment, and every the equal integrated into one piece in top of latch segment has one to extend and corresponds the stirring piece of sliding tray.
Preferably, the fixing component comprises a plurality of fixing holes formed in the top and the bottom of the first connector, the second connector and the third connector, a connecting strip is arranged at the top and the bottom of the connecting structure, two fixing blocks corresponding to the fixing holes one to one are arranged on one end face, which is close to the connecting strip, of the connecting strip, an extension plate is fixedly connected to each of the two end parts of the connecting strip, a plurality of first locking holes are formed in each of the extension plates, second locking holes corresponding to the first locking holes are formed in the top and the bottom of the mounting block, and locking pieces are fixedly locked between the corresponding first locking holes and the corresponding second locking holes.
Preferably, the locking member can be one or more of a rivet, a screw and a limiting block.
Preferably, the first connector, the second connector, the third connector and the connecting strip are all made of soft elastic materials.
Compared with the prior art, the invention has the beneficial effects that: the invention relates to a flexible folding display screen structure, which comprises:
through pulling the stirring piece on the installation piece for the latch segment contracts in to the cavity, then, the staff places the installation piece in the slotted hole, and extend the latch segment into the mounting groove and fix the installation piece, through mounting groove and latch segment, can make the installation of installation piece fastening fix on the frame body, avoid taking place to drop, simultaneously, the staff connects a connection structure between two adjacent frame bodies, and set up connection structure's both ends on two installation pieces, when the staff need turn over the frame body, can effectually turn over two frame bodies through soft elastic material's connection structure, and then turn over the display screen group of installing in the holding groove, thereby reached the purpose of turning over the display screen, area occupied has been reduced, make this device more make things convenient for the staff's use.
Drawings
FIG. 1 is a schematic view of a frame body according to the present invention;
FIG. 2 is a schematic view of a display module installed in a frame body according to the present invention;
FIG. 3 is a schematic view of a connection structure between two frame bodies according to the present invention;
FIG. 4 is a schematic structural view of a connecting structure according to the present invention;
FIG. 5 is an enlarged schematic view of a partial structure at A in FIG. 4 according to the present invention;
FIG. 6 is a schematic view of a fixing assembly according to the present invention;
FIG. 7 is a schematic view of the construction of the mounting block of the present invention;
FIG. 8 is a front cross-sectional view of FIG. 7 in accordance with the present invention;
in the figure:
1. a frame body; 11. a receiving groove; 12. a slot hole; 121. a mounting groove;
2. a display screen module;
3. a locking device; 31. a mounting block; 311. a cavity; 312. perforating; 313. a sliding groove; 314. a second locking hole; 32. a locking block; 33. a return spring; 34. a poking block;
4. a connection structure; 41. a first connecting body; 411. a first connection base; 412. a bump; 42. a second connector; 421. a second connecting seat; 422. a first groove; 43. a third connector; 431. a third connecting seat; 432. a second groove;
5. a fixing assembly; 51. a fixing hole; 52. a connecting strip; 521. an extension plate; 522. a first locking hole; 53. and a fixed block.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present invention.
Referring to fig. 1-3, the present invention provides a flexible folding display screen structure, comprising:
at least two frame bodies 1 that set up relatively, a storage tank 11 has all been seted up to the inside of every frame body 1, and the inside of every storage tank 11 all holds and is fixed with a display screen module 2.
Specifically, the frame body 1 is a rectangular frame body 1 with a hollow middle portion and a containing groove 11, and a worker installs and fixes the display screen module 2 in the containing groove 11 formed in the frame body 1 in a fixed connection manner, in this embodiment, the display screen module 2 may be fixed by bolts, or may be fixed by rivets, or be fixed by plugging, etc., and since the installation manner of installing the display screen module 2 is a conventional technical means known to those skilled in the art, in this embodiment, the connection manner of the display screen module 2 is not further limited, and is not repeated here.
It should be noted that in some embodiments, the shape of the frame body 1 may be preferably a rectangular frame by a worker, and in other embodiments, the worker may also perform appropriate correction on the frame body 1 according to the specific size and shape of the display screen module 2, so that the display screen modules 2 with different sizes and types may be installed on the frame body 1, the practicality and application range of the device are improved, and a better use experience is brought to the worker.
In some embodiments, the staff can also set the accommodating groove 11 to be in a non-communication state, and meanwhile, some fixing structures which can be used for fixing the display screen module 2 (such as a limiting block, a stop block, a limiting plate and the like) can be arranged in the accommodating groove 11, so that the stability of the display screen module 2 in use is further ensured, the falling of the display screen module 2 in use is avoided, and the practicability of the device is increased.
Referring to fig. 4-5 and 7-8, a locking device 3 is detachably and fixedly connected with the locking device 3 on two side walls of each frame body 1 symmetrically arranged, a slot hole 12 capable of accommodating the locking device 3 is formed on two side walls of each frame body 1 symmetrically arranged, a mounting groove 121 is formed on two inner walls of each slot hole 12, the locking device 3 comprises a mounting block 31 fixedly connected with a third connecting body 43, locking blocks 32 extending into the corresponding mounting groove 121 are slidably arranged on two side walls of the mounting block 31, a cavity 311 is formed in the mounting block 31, a through hole 312 for communicating with the cavity 311 is formed on two side walls of the mounting block 31, the two locking blocks 32 are slidably accommodated in the corresponding through holes 312, one end of each locking block 32 positioned in the cavity 311 is fixedly connected with a reset spring 33, a sliding groove 313 is formed on the top of the mounting block 31 corresponding to the two locking blocks 32, and a poking block 34 extending out of the corresponding sliding groove 313 is integrally formed on the top of each locking block 32.
Specifically, first, the staff all sets up a slotted hole 12 on the both sides wall that every frame body 1 set up symmetrically, simultaneously, but set up the mounting groove 121 of a holding latch segment 32 on the both sides inner wall of every slotted hole 12, then, when this device needs to install, the staff all connects fixedly a mounting block 31 in every slotted hole 12, and then, can the fixed mounting connection structure 4 between two frame bodies 1, thereby make the tight connection between two frame bodies 1, because connection structure 4 is flexible elastic construction that can buckle, therefore, the staff can turn over two frame bodies 1, thereby reduced the area occupied by frame body 1, be convenient for follow-up staff to the collection and the transportation of display screen module 2.
When installing the installation block 31, the worker pushes the toggle blocks 34 manually, so that the two toggle blocks 34 slide close to each other in the corresponding sliding grooves 313, and then drives the locking block 32 to slide horizontally in the cavity 311 through the toggle blocks 34, so that the part of the locking block 32 exposed out of the installation block 31 is contracted into the cavity 311 along the through holes 312, and compresses the return spring 33 through the locking block 32, and meanwhile, the installation block 31 extends into the corresponding slot hole 12, when the installation block 31 enters into the slot hole 12, the worker releases the restriction on the toggle blocks 34, and the return spring 33 loses the restriction force to reset elastically, so that the end part of the locking block 32 is pushed to extend out of the installation block 31 along the through holes 312 and extend into the corresponding installation groove 121, thereby completing the locking and fixing of the installation block 31.
In some embodiments, the worker may also install and fix the mounting block 31 and the frame body 1 by plugging, clamping, screwing, welding, etc., only one preferred embodiment is provided in this example, and by this embodiment, the worker may easily detach and install the mounting block 31, which improves the working efficiency of the worker, and in other embodiments, the worker may also connect and fix by other manners, which is not limited herein too much.
Referring to fig. 3-5, a connecting structure 4 capable of bending is fixedly connected between locking devices 3 on two adjacent frame bodies 1, the two frame bodies 1 are fixedly connected through the connecting structure 4, the connecting structure 4 comprises third connecting bodies 43 arranged at two ends and fixedly connected with the locking devices 3, a plurality of first connecting bodies 41 and second connecting bodies 42 are sequentially and alternately distributed between the two third connecting bodies 43, a second connecting body 42 is arranged between every two adjacent first connecting bodies 41, the first connecting bodies 41 comprise a first connecting seat 411, two side walls symmetrically arranged on the first connecting seats 411 are uniformly formed with a bump 412, the second connecting bodies 42 comprise a second connecting seat 421 with the same size as the first connecting seat 411, two side walls oppositely arranged on the second connecting seat 421 are respectively provided with a first groove 422 capable of accommodating the bump 412, the third connecting bodies 43 comprise a third connecting seat 431 with the same size as the second connecting seat 421, the first side walls of the two third connecting seats 431 are close to each other and are respectively provided with a first groove 432 with an arc-shaped groove 432, and the arc-shaped grooves 432 are respectively arranged on the two third connecting seats 431.
Specifically, the connection structure 4 includes two third connection bodies 43 located at two ends in a horizontal direction, a second groove 432 capable of accommodating the bump 412 is formed in a side wall, which is close to the third connection bodies 43, between the two third connection bodies 43, a first connection body 41 adjacent to the third connection bodies 43 is further disposed, the second connection body 42 has a first connection seat 411, meanwhile, the bump 412 is further disposed on two symmetrical side walls of the first connection seat 411, in the whole connection structure 4, a plurality of first connection bodies 41 and second connection bodies 42 are disposed between the two third connection bodies 43, a second connection body 42 is disposed between the two first connection bodies 41 disposed adjacent to each other, a first connection body 41 is disposed between the two second connection bodies 42 disposed adjacent to each other, the first connection body 41 and the second connection body 42 are alternately distributed at intervals, the second connection body 42 includes a first connection seat 421 and a first groove 422 disposed on two side walls of the second connection seat 421, in the symmetrical manner, when the connection structure 4 is mounted on the first connection seat 412, the first connection body 421 is inserted into the first connection seat 412, another connection seat is disposed on the other side of the first connection seat 41, the other side of the first connection seat is inserted into the first connection seat 421, and the second connection seat is disposed on the other side of the first connection seat 41.
It should be noted that, in this embodiment, preferably, the cross sections of the first groove 422 and the second groove 432 are set to be arc shapes by the staff, and the cross section of the bump 412 is also set to be arc shapes, because the arc-shaped surface has certain flexibility, when the connecting structure 4 is bent, the bump 412 will not scratch or break in the first groove 422 and the second groove 432, thereby ensuring the stability of the connecting structure 4 when the connecting structure is bent, prolonging the service life thereof, reducing the workload of maintenance of the staff, and facilitating the use of the staff.
In some embodiments, the cross-section of the bump 412, the first groove 422, the second groove 432 may be modified by the worker to be tapered, trapezoidal, U-shaped, etc. according to the specific situation, and is not limited herein.
In other embodiments, the worker may also set the bump 412 on the side wall of the third connecting seat 431, set the first groove 422 on the two side walls of the first connecting seat 411, and set the bump 412 on the two side walls of the second connecting seat 421, so as to achieve stable fixing of the connecting structure 4.
In other embodiments, the worker may set the first connection seat 411, the second connection seat 421, and the second connection seat as a new connection body having a bump 412 on one side and a first groove 422 on one side, and set the second groove 432 and the bump 412 on one of the two third connection seats 431, thereby completing the stable installation of the connection structure 4.
Referring to fig. 6, a fixing assembly 5 is fixedly connected to the locking device 3 at two ends thereof, and is used for clamping and limiting the connecting structure 4, the fixing assembly 5 includes a plurality of fixing holes 51 formed at the top and bottom of the first connecting body 41, the second connecting body 42 and the third connecting body 43, a connecting strip 52 is disposed at the top and bottom of the connecting structure 4, fixing blocks 53 corresponding to the fixing holes 51 one by one are disposed on one end surface of the two connecting strips 52, an extension plate 521 is fixedly connected to two ends of each connecting strip 52, a plurality of first locking holes 522 are formed on each extension plate 521, a second locking hole 314 having a diameter identical to that of the corresponding first locking hole 522 is formed at the top and bottom of each mounting block 31, and locking pieces are fixedly locked between the corresponding first locking holes 522 and the corresponding second locking holes 314, and may be one or more of rivets, screws and stoppers.
Specifically, in this embodiment, the staff sets up a connecting strip 52 at the top and the bottom of the first connector 41, the second connector 42, simultaneously, at the connecting strip 52 lower surface at top, set up a plurality of groups of fixed blocks 53, at the connecting strip 52 upper surface of bottom, be provided with a plurality of groups of fixed blocks 53, because the fixed orifices 51 of a plurality of and fixed block 53 looks adaptations are all offered to the bottom and the top of first connecting seat 411, second connecting seat 421, third connecting seat 431, the staff is through inserting fixed block 53 in corresponding fixed orifices 51, accomplish the connection fixed to connecting strip 52, then, because the both ends of every connecting strip 52 all have integrated into one piece's extension board 521, and a plurality of first locking hole 522 have been offered on the extension board 521, in this embodiment, the staff still offers a plurality of second locking hole 314 on the bottom and the top of installation piece 31, after the staff aligns first locking hole 522 and second locking hole 314, rivet in its inside, accomplish the installation fixed knot of connecting strip 52 on installation piece 31 constructs 4, thereby the connection is guaranteed to the second connector 43, the connection is broken away from in the normal, the first connector is further guaranteed, the connection is not normally connected, the device is connected to the first connector is guaranteed.
It should be noted that, in this embodiment, the locking member is preferably a rivet, and in other embodiments, a screw may be used to fix the connection bar 52 by using the limiting block, so that a worker may freely select according to the actual situation, which is not limited and described herein.
In some embodiments, preferably, the fixing holes 51 and the second locking holes 314 on the first connecting body 41, the second connecting body 42, the third connecting body 43 and the mounting block 31 are formed in four and distributed in a rectangular array, so that the support and fixation can be effectively performed, and the falling off or deviation phenomenon is prevented.
Referring to fig. 3-5, the first connector 41, the second connector 42, the third connector 43 and the connecting strip 52 are made of soft elastic materials.
Specifically, the first connecting body 41, the second connecting body 42, the third connecting body 43 and the connecting strip 52 are made of elastic materials, and therefore the connecting structure 4 can be well ensured to be bent, and the placement position of the display screen module 2 can be conveniently adjusted.
It should be noted that, in some embodiments, the worker may also set the bump 412 to be a soft elastic structure, so as to avoid scratch in the first groove 422 and the second groove 432, prolong the service life of the bump 412, and avoid damage.
The working principle and the using flow of the invention are as follows: after the invention is installed, firstly, a worker fixedly installs the display screen module 2 in the accommodating groove 11 formed in the frame body 1, then, installs and fixes the installation blocks 31 in the slotted holes 12 formed on the side walls of the frame body 1, then, fixedly installs the connecting structure 4 between the installation blocks 31 on the side walls of the two frame bodies 1, and finally, the connecting strip 52 is arranged on the outer side of the connecting structure 4 through the cooperation of the rivet and the fixing block 53 to finish the installation and the fixation of the device, so that the display screen module 2 in the two adjacent frame bodies 1 can be freely folded to any preset angle to finish the placement, the storage and the transportation of the display screen module 2.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. A flexible, foldable display screen structure, comprising:
at least two oppositely arranged frame bodies (1), wherein a containing groove (11) is formed in each frame body (1), and a display screen module (2) is contained and fixed in each containing groove (11);
the locking devices (3) are detachably and fixedly connected to the two side walls of each frame body (1) which are symmetrically arranged;
the connecting structure (4) can be bent, the connecting structure (4) is fixedly connected between the locking devices (3) on the two adjacent frame bodies (1), and the two frame bodies (1) are fixedly connected through the connecting structure (4); the method comprises the steps of,
the two ends of the fixing component (5) are fixedly connected to the locking device (3) respectively and are used for clamping and limiting the connecting structure (4); the connecting structure (4) comprises third connecting bodies (43) which are arranged at two end parts and fixedly connected with the locking device (3), a plurality of first connecting bodies (41) and second connecting bodies (42) are sequentially and alternately distributed between the two third connecting bodies (43), and a second connecting body (42) is arranged between every two adjacent first connecting bodies (41);
the first connecting body (41) comprises a first connecting seat (411), and two side walls of the first connecting seat (411) which are symmetrically arranged are uniformly formed with a bump (412);
the second connecting body (42) comprises a second connecting seat (421) with the same size as the first connecting seat (411), and the two side walls of the second connecting seat (421) which are oppositely arranged are respectively provided with a first groove (422) capable of accommodating the protruding block (412);
the third connecting body (43) comprises a third connecting seat (431) with the same size as the second connecting seat (421), and a second groove (432) for accommodating the protruding block (412) is formed on one side wall of the two third connecting seats (431) close to each other; two side walls of each frame body (1) which are symmetrically arranged are provided with a slotted hole (12) which can accommodate the locking device (3), and two side inner walls of each slotted hole (12) are provided with a mounting groove (121);
the locking device (3) comprises a mounting block (31) fixedly connected with the third connecting body (43);
the two side walls of the mounting block (31) are provided with locking blocks (32) which extend into the corresponding mounting grooves (121) in a telescopic sliding manner; the inside of the mounting block (31) is provided with a cavity (311), two side walls of the mounting block (31) are provided with a through hole (312) communicated with the cavity (311), and the two locking blocks (32) are accommodated in the corresponding through holes (312) in a sliding manner;
one end of each locking block (32) positioned in the cavity (311) is fixedly connected with a reset spring (33);
a sliding groove (313) is formed in the top of the mounting block (31) corresponding to the two locking blocks (32), and a poking block (34) corresponding to the sliding groove (313) is integrally formed in the top of each locking block (32); the fixing assembly (5) comprises a plurality of fixing holes (51) which are formed in the top and bottom of the first connecting body (41), the second connecting body (42) and the third connecting body (43);
a connecting strip (52) is arranged at the top and the bottom of the connecting structure (4);
one end surface of each connecting strip (52) close to the connecting strip is provided with a fixing block (53) which corresponds to the fixing holes (51) one by one;
an extension plate (521) is fixedly connected to two end parts of each connecting strip (52), and a plurality of first locking holes (522) are formed in each extension plate (521);
the top and the bottom of the two mounting blocks (31) are respectively provided with a second locking hole (314) with the same aperture as the corresponding first locking hole (522);
locking pieces are locked and fixed between the corresponding first locking holes (522) and the corresponding second locking holes (314).
2. A flexible folding display screen structure as claimed in claim 1, characterized in that the projection (412) is an arc-shaped protrusion, and the first recess (422) and the second recess (432) are arc-shaped grooves adapted to the arc-shaped protrusion.
3. A flexible folding display screen structure as claimed in claim 2, wherein the locking member is one or more of a rivet, a screw, and a stopper.
4. A flexible folding display screen structure according to claim 3, characterized in that the first connector (41), the second connector (42), the third connector (43) and the connecting strip (52) are made of soft elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110489915.3A CN113223412B (en) | 2021-05-06 | 2021-05-06 | Flexible folding display screen structure |
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| CN202110489915.3A CN113223412B (en) | 2021-05-06 | 2021-05-06 | Flexible folding display screen structure |
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| CN113223412A CN113223412A (en) | 2021-08-06 |
| CN113223412B true CN113223412B (en) | 2023-12-05 |
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| CN110310581A (en) * | 2019-07-31 | 2019-10-08 | 深圳市巴科光电科技股份有限公司 | Seamless joint-separation LED auto-stereoscopic display screen |
| CN210516042U (en) * | 2019-11-22 | 2020-05-12 | 合肥合政信息技术有限公司 | Public legal service is with propaganda equipment |
| CN210667625U (en) * | 2019-12-06 | 2020-06-02 | 深圳市中优图科技有限公司 | Connecting assembly of folding LCD display module |
| CN112530304A (en) * | 2020-12-22 | 2021-03-19 | 深圳市巴科光电科技股份有限公司 | Intelligent temperature control device for LED display screen |
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| CN113223412A (en) | 2021-08-06 |
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