CN216353109U - Display device - Google Patents

Abstract

The embodiment of the disclosure provides a display device. The display device includes: the display assembly unit comprises a supporting frame and a plurality of display modules arranged on the supporting frame. According to the technical scheme of the embodiment, under the condition that the same number of display modules are configured, the number of the supporting frames arranged on the box body is greatly reduced, the assembling difficulty can be simplified, the assembling efficiency is improved, the process is simplified, in addition, due to the reduction of the number of the supporting frames, the accumulated splicing tolerance is reduced, the assembling precision is improved, the splicing uniformity and the pixel edge alignment are facilitated, and the seamless splicing is facilitated.

Description

Display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display device.

Background

The Mini LED is an LED (Light Emitting Diode) chip having a crystal grain size of about 100 to 300 μm, and the Micro LED is an LED chip having a crystal grain size of 100 μm or less. The Mini LED/Micro LED can be used as a self-luminous LED for display, and has the advantages of low power consumption, high brightness, high resolution, high color saturation, high reaction speed, long service life, high efficiency and the like. The Mini LED/Micro LED display device can realize super large screen display by seamless splicing of the unit display modules, and has wide application prospect in large-size display fields such as command monitoring centers, business centers, high-end conferences, private cinemas and the like.

In the prior art, a Mini LED product with R, G, B display has a Pixel Pitch (Pixel Pitch) of more than 1.2mm, and because the Pixel Pitch is relatively large, a splicing method is relatively simple, and the precision requirement is not high. However, with the innovative iteration of display technology, high resolution Mini LED or Micro LED display products with pixel pitch below 0.9mm are beginning to be marketed. For Mini LED or Micro LED display products with pixel spacing below 0.9mm, if the splicing scheme in the prior art is adopted, the assembling process is complicated, the efficiency is low, the edge gap and the edge of the spliced display device are uneven, and the display effect is reduced.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present disclosure provide a display device to solve or alleviate one or more technical problems in the prior art.

As a first aspect of embodiments of the present disclosure, embodiments of the present disclosure provide a display device including: the display assembly unit comprises a supporting frame and a plurality of display modules arranged on the supporting frame.

In some possible implementation manners, the supporting frame and the box body are connected through a magnetic attraction structure, one of the supporting frame and the box body is provided with a plurality of magnetic attraction bodies, the other one of the supporting frame and the box body is provided with a plurality of magnetic attraction columns, and each magnetic attraction column is in adsorption connection with each magnetic attraction body correspondingly.

In some possible implementation manners, a groove is formed in the magnetic attraction body, a protrusion is formed on the magnetic attraction column, and the protrusion corresponds to the groove in a matching mode.

In some possible implementations, a positioning structure is provided between the support frame and the case to define the relative position of the support frame and the case.

In some possible implementation manners, one of the supporting frame and the box body is provided with a positioning pin, and the other is provided with a positioning hole, and the positioning hole is in inserted fit with the positioning pin.

In some possible implementations, the material of the support frame includes aluminum.

In some possible implementations, the display module includes a substrate base and a plurality of organic light emitting diodes disposed on the substrate base.

In some possible implementation manners, a first positioning cursor is arranged on the substrate base plate, a second positioning cursor is arranged on the supporting frame, and the display module is adhered to the corresponding position of the supporting frame through the first positioning cursor and the second positioning cursor in an aligning manner.

In some possible implementations, the substrate of the substrate base plate includes glass, and a pixel pitch between two adjacent organic light emitting diodes is less than or equal to 0.9 mm.

In some of the possible implementations of the present invention,

the display assembly unit comprises a substrate base plate, a plurality of display modules and a plurality of display assembly units, wherein one side of the substrate base plate, which is far away from the organic light-emitting diodes, is provided with a flexible circuit board, the display modules also comprise a driving circuit board, the driving circuit board is electrically connected with the flexible circuit board, the display assembly units also comprise a plurality of first switching circuit boards, the first switching circuit boards are in one-to-one correspondence with the display modules, the first switching circuit boards are arranged on one sides of support frames, which are far away from the display modules, and the first switching circuit boards are connected with the driving circuit boards of the corresponding display modules;

the box body is internally provided with a second switching circuit board and a power supply, the second switching circuit board is connected with the power supply, and the second switching circuit board is electrically connected with the first switching circuit boards.

The technical scheme of this disclosure compares in display device of a display module assembly of a carriage installation, the display device of this disclosure, under the condition of the same quantity of display module assembly of configuration, the carriage quantity of installing on the box significantly reduces, can simplify and assemble the degree of difficulty, promote packaging efficiency, simple process, and, because the carriage quantity reduces, the concatenation tolerance of accumulation has been reduced, the assembly precision has been improved, be favorable to piece seam homogeneous, the pixel edge aligns, thereby be favorable to realizing seamless concatenation.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present disclosure will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are not to be considered limiting of its scope.

FIG. 1a is a schematic structural diagram of an aluminum frame of a display device;

FIG. 1b is an exploded view of a display assembly unit of a display device;

FIG. 1c is a schematic perspective view of a display device;

FIG. 1d is a schematic cross-sectional view of a display device;

FIG. 2 is a schematic cross-sectional view illustrating a display device according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of a display assembly unit of a display device according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a supporting frame of a display device according to an embodiment of the disclosure;

FIG. 5 is a schematic structural diagram of a supporting frame of a display device according to another embodiment of the disclosure;

fig. 6 is a schematic structural diagram of a display assembly unit in the related art.

Description of reference numerals:

10. a box body; 12. a magnetic attraction column; 13. positioning holes; 14. a second adapting circuit board; 15. a power source; 20. a display assembly unit; 21. a support frame; 211. avoiding holes; 212. a magnetic body; 213. positioning pins; 214. an installation position; 22. a display module; 221. a substrate base plate; 222. an LED; 223. a flexible circuit board; 224. a drive circuit board; 23. the first adapting circuit board.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways, without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the related art, for Mini LED display products with a pixel pitch of more than 1.2mm, the pixel pitch is large, and the Mini LED display products are usually spliced by a Printed Circuit Board (PCB) without a glass-based splicing scheme, so that the splicing method is simple. To the display product that the pixel interval is more than 1.2mm, can punch on PCB to with PCB and the direct screw fixation of box, perhaps, also can arrange the aluminium frame and guarantee the roughness, fix PCB on the aluminium frame, punch the back on the aluminium frame, fix the aluminium frame in the box, then splice a plurality of boxes each other, the required precision is not high, realizes concatenation formula display device.

But for the high resolution Mini LED or Micro LED display products with the pixel pitch of 0.9mm and below, the PCB splicing is difficult to realize. The inventor proposes a glass-based splicing scheme for Mini LED or Micro LED display products with pixel pitches of 0.9mm and below. For glass-based products, if a box body splicing scheme similar to a Mini LED with the size of more than 1.2mm is adopted, for example, a display module is fixed on an aluminum frame, and the aluminum frame is fixed on the box body.

Fig. 1a is a schematic structural view of an aluminum frame in a display device, fig. 1b is a schematic exploded structural view of a display assembly unit in the display device, fig. 1c is a schematic perspective structural view of the display device, and fig. 1d is a schematic sectional structural view of the display device. As shown in fig. 1a to 1d, the display device may be an LED display device, and the display device may include a case 10 and a plurality of display assembly units 20 mounted on the case 10. Each display assembly unit 20 includes a support frame 21 and a display module 22, and the display module 22 is mounted on the support frame 21. The display module 22 may include a substrate base 221 and a plurality of LEDs 222 disposed on the substrate base 221. The display module 22 can be adhered to the support frame 21 by double-sided adhesive, and the support frame 21 is fixed at a corresponding position of the box 10. The plurality of display assembly units 20 are all fixed at corresponding positions of the box body 10, so that the LED splicing type display device is realized.

It can be understood that the more display assembling units 20 are mounted on the cabinet 10, the longer the assembling time is, and the higher the probability that the display module 22 is damaged by collision is, the higher the cost is, and the productivity is reduced. In addition, the support frame 21 belongs to a structural member, the support frame 21 has manufacturing tolerance and assembling tolerance, the more the display assembly units 20 are, the more the support frames 21 are, the larger the accumulated splicing tolerance is, and seamless splicing is difficult to realize.

Fig. 2 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the disclosure. As shown in fig. 2, the display apparatus may include a case 10 and at least one display assembly unit 20, the at least one display assembly unit 20 being mounted to the case 10. The display assembly unit 20 includes a support frame 21 and a plurality of display modules 22, and the plurality of display modules 22 are mounted on the support frame 21.

The display device of the embodiment of the present disclosure, install at least one carriage 21 on the box 10, a plurality of display module assembly 22 can be installed to carriage 21, compare in the display device of a display module assembly of carriage installation, the display device of the embodiment of the present disclosure, under the condition of configuring the same number of display module assemblies, the number of carriage 21 installed on the box 10 significantly reduces, can simplify the difficulty of assembling, promote the packaging efficiency, the process is simplified, and, because carriage 21 reduces in number, the splicing tolerance of accumulation has been reduced, the assembly precision has been improved, be favorable to the piece homogeneous, the pixel edge aligns, thereby be favorable to realizing seamless concatenation.

In one embodiment, the display module 22 includes a substrate base 221 and a plurality of LEDs 222 disposed on the substrate base 221, that is, the display module 22 may be an LED display module. Illustratively, the substrate base 221 may be a glass base plate, and the substrate of the substrate base 221 may be glass.

In one embodiment, in the display module, the pixel pitch of two adjacent LED pixels is less than or equal to 0.9mm, so that the display device has higher resolution. The LEDs may include Micro LEDs or Mini LEDs.

For example, the LEDs disposed on the display module may include a first LED for generating a first color, which may be red R, a second LED for generating a second color, which may be green G, and a third LED for generating a third color, which may be blue B.

In one embodiment, the substrate 221 has a metal trace disposed therein, and the material of the metal trace includes copper (Cu), so that the trace resistance can be reduced.

For example, the display module 22 may employ a side routing technology, for example, a metal routing is disposed on a surface of the substrate 221 facing the LED, a pad is disposed on a surface of the substrate 221 facing away from the LED, and a metal connection line is disposed on a side surface of the substrate 221, where the metal routing is connected to the pad through the metal connection line.

Fig. 3 is an exploded schematic view of a display assembly unit in a display device according to an embodiment of the disclosure. In one embodiment, as shown in fig. 2, one supporting frame 21 may be provided with a plurality of mounting positions matching with the display modules 22, and each display module 22 is mounted at the corresponding mounting position. For example, the display module 22 may be fixed at the corresponding mounting position by means of adhesion, for example, the display module 22 is adhered at the corresponding mounting position by an adhesive tape, such as double-sided adhesive.

Fig. 4 is a schematic structural diagram of a support frame in a display device according to an embodiment of the disclosure, and fig. 5 is a schematic structural diagram of a support frame in a display device according to another embodiment of the disclosure. In one embodiment, as shown in fig. 4, one supporting frame 21 may be provided with 2 mounting positions 214, and two display modules 22 may be mounted on one supporting frame 21; in another embodiment, as shown in fig. 5, one supporting frame 21 may be provided with 4 mounting positions 214, and two display modules 22 may be mounted on one supporting frame 21. It is understood that the number of the mounting positions 214 that the supporting frame can be provided with can be set according to the requirement.

As shown in fig. 3, the display module 22 may further include a Flexible Printed Circuit (FPC)223, and the flexible printed circuit 223 is bound to the bonding pads, so that the flexible printed circuit 223 is disposed on a side of the substrate 221 facing away from the LED. The flexible circuit board 223 includes a driving and control chip to drive the LED to work and control the display of the display module.

As shown in fig. 3, the display module 22 may further include a driving circuit board 224, and the driving circuit board 224 is electrically connected to the flexible circuit board 223.

As shown in fig. 2, the display assembly unit 20 further includes a plurality of first adaptor circuit boards (HUB2)23, the plurality of first adaptor circuit boards 23 correspond to the plurality of display modules 22 one by one, the first adaptor circuit boards 23 are mounted on a side of the support frame 21 away from the display modules 22, and the first adaptor circuit boards 23 are connected to the driving circuit boards 224 of the corresponding display modules 22. The second relay circuit board 14 and the power supply 15 are disposed in the case 10, and the second relay circuit board 14 is electrically connected to the power supply 15. The second relay circuit board 14 is electrically connected to the plurality of first relay circuit boards 23. Illustratively, the driving circuit board 224 is provided with electrical connectors, and the driving circuit board 224 is connected with the corresponding first adapter circuit board 23 by plugging through the electrical connectors. Therefore, the power supply 15 supplies power to the plurality of first through circuit boards 23 through the second through circuit board 14, and the first through circuit boards 23 supply power to the corresponding display modules to control the lighting of the corresponding display modules.

In the related art, the first adapter circuit board and the second adapter circuit board are integrated circuit boards with large volumes and are installed in the box body 10, and the integrated circuit boards are large in size and large in occupied area, so that the difficulty of structural layout of the box body 10 is increased. In the embodiment of the present disclosure, the first adapter circuit board 23 and the second adapter circuit board 14 are disposed in a split manner, and the first adapter circuit board 23 is mounted on the back of the supporting frame 21, so that the occupied space of the box 10 is greatly saved, and the structural layout of the box 19 is facilitated.

In one embodiment, the case 10 is provided with a rib to increase the structural strength of the case 10 and improve the structural stability of the display device. Since the second through circuit board 14 occupies a small area, it is convenient to provide reinforcing ribs in the box 10.

As shown in fig. 3, the support frame 21 is provided with an avoiding hole 211 corresponding to each display module 22 to avoid the chip on the flexible circuit board 223 and the driving circuit board 224, and the avoiding hole 211 may further allow an electrical connection line or an electrical connector to pass through.

In one embodiment, the material of the supporting frame 21 may be metal, such as aluminum. The material of the support frame 21 may be other metals or alloys, and is not limited herein. The support frame 21 may be manufactured by a die casting mold and machined into a structural member of a desired accuracy by CNC. Choose the carriage of aluminium material for use, can be so that the carriage is more frivolous, easy processing, convenient equipment, maintenance and location.

In one embodiment, as shown in fig. 2 and 3, the support frame 21 is connected to the housing 10 by a magnetic attraction structure. One of the supporting frame 21 and the box body 10 is provided with a plurality of magnetic attraction bodies 212, the other one of the supporting frame 21 and the box body 10 is provided with a plurality of magnetic attraction columns 12, the plurality of magnetic attraction bodies 212 and the plurality of magnetic attraction columns 12 are in one-to-one correspondence, and the corresponding magnetic attraction bodies 212 and the magnetic attraction columns 12 are connected in an adsorption mode, so that the supporting frame 21 and the box body 10 are connected. Illustratively, the magnetic attraction body 212 is arranged on one side of the supporting frame 21 facing the box body 10, and the magnetic attraction column 12 is arranged on the box body 10; or the magnetic pole is arranged on one side of the supporting frame 21 facing the box body 10, and the magnetic body is arranged on the box body 10. For example, the magnetic body 212 may be a magnetic nut, and the magnetic post 12 may be inserted into the magnetic nut, so that the magnetic structure can function as a limit. For example, a groove may be disposed on the magnetic attraction body 212, and a protrusion may be disposed on the magnetic attraction column 12, where the protrusion matches with the groove, so that the magnetic attraction structure may function as a phase.

The supporting frame 21 is connected with the box body 10 through the magnetic attraction structure, so that the assembly of the supporting frame 21 and the box body 10 is facilitated, the disassembly of the supporting frame 21 and the box body 10 is facilitated, the assembly efficiency is improved, and the maintenance is facilitated.

It can be understood that at least one of the magnetic attraction body and the magnetic attraction column has magnetism as long as the two can be connected in an attraction manner.

It should be noted that the supporting frame 21 and the box 10 may also be connected by other connecting structures, such as screw hole connection, clamping structure connection, and the like.

In one embodiment, a positioning structure is provided between the support frame 21 and the housing 10 to define the relative position of the support frame 21 and the housing 10. Illustratively, one of the supporting frame 21 and the box body 10 is provided with a positioning pin 213, and the other is provided with a positioning hole 13, and the positioning pin 213 is in insertion fit with the positioning hole 13 to realize the positioning of the supporting frame 21 and the box body 10. For example, the positioning pin 213 may be disposed on a side of the supporting frame 21 facing the case 10, and the positioning hole 13 may be disposed on the case 10; alternatively, the positioning holes may be provided on the support frame 21, and the positioning pins may be provided on the case 10.

It can be understood that the specific arrangement positions and the number of the magnetic attraction structure and the positioning structure can be set as required.

Fig. 6 is a schematic structural diagram of a display assembly unit in the related art. The structural schematic diagram of a display module is installed on a supporting frame. In the related art, as shown in fig. 6, the display assembly unit 20 includes a support frame and a display module, and a display module is installed to a support frame, and when the support frame and the box are magnetically attracted to each other through a plurality of magnetic attraction structures, a support frame needs to be magnetically attracted to each other through a plurality of magnetic attraction structures and be connected with the box, for example, 6 magnetic attraction structures, and 6 magnetic attraction bodies 212 are arranged on the support frame to ensure the adsorption strength of the support frame and the box and to ensure the smoothness of the display module. As shown in fig. 6, after the support frame is connected with the box body through 6 magnetic attraction bodies 212 in an attracting manner, the adsorption strength of the support frame and the box body is ensured, but the support frame is not easy to detach from the box body, the installation process is complicated, the assembly efficiency is low, and the magnetic attraction structure quantity is high in cost. With the structure shown in fig. 6, if two display modules are installed in one box, the number of the magnetic attraction structures is 12.

As shown in fig. 2, in the display device of the embodiment of the present disclosure, a plurality of display modules can be installed to one support frame 21, for example, 2 display modules can be installed to one support frame 21, one support frame 21 is connected with the box through 6 magnetic attraction structures, so, if two display modules are installed to one box, the number of the magnetic attraction structures only needs 6. And, the display module assembly that a box can be installed is more, and the quantity that the structure reduces is inhaled to magnetism is more, greatly reduced display device's cost, promote packaging efficiency.

In a display device of display module assembly of a carriage installation, the quantity of the location structure between a carriage and the box is 3, and when a box need set up under the condition of 2 display module assemblies, the quantity of location structure is 6. In the embodiment of the disclosure, a plurality of 2 display module assemblies for example can be installed to a carriage, and the quantity of the location structure between carriage and the box is 4, and the quantity of location structure significantly reduces, improves machining efficiency.

In the display device of a display module assembly of a carriage installation, in order to improve the concatenation precision, location structure's machining precision is than higher, and the processing cost is high. In the embodiment of the disclosure, the processing precision of the positioning structure located in the middle position can be reduced, the splicing precision cannot be influenced, and the cost is reduced.

In one embodiment, the display assembly unit 20 is assembled on the cabinet 10 by a vacuum adsorption mechanism. Under a display module assembly's of carriage installation condition, if a box 10 corresponds 8 display module assemblies, then, vacuum adsorption mechanism's suction nozzle needs 8 times just can install 8 display assembly units on box 10, and vacuum adsorption mechanism absorbs the number of times that display assembly unit is 8 times, and the number of times is more, and the probability that display module assembly was collided with is big more. Adopt this disclosed embodiment's technical scheme, a plurality of display module assembly of carriage installation (for example, 2 display module assembly of carriage installation), if a box 10 corresponds 8 display module assembly, then, the suction nozzle of vacuum adsorption mechanism need 4 times alright install 4 display assembly unit 20 on box 10, the number of times that vacuum adsorption mechanism absorbs display assembly unit 20 reduces to 4 times, the probability that display module assembly is collided with reduces to packaging efficiency has been promoted.

In one embodiment, a first positioning cursor is disposed on the substrate 221 of the display module 22, a second positioning cursor corresponding to the first positioning cursor is disposed on the supporting frame 21, and the display module 22 is adhered to a corresponding position of the supporting frame 21 by aligning the first positioning cursor and the second positioning cursor. For example, an image controller (CCD) of the 3D bonding apparatus may be used to align the first positioning cursor and the second positioning cursor, and the display module 22 is attached to the mounting position of the supporting frame 21.

When the structure of a display module assembly of a carriage installation of adoption, the counterpoint precision of display module assembly and carriage is all in the equipment tolerance, but the counterpoint precision diverse of each display module assembly and each carriage, when installing 8 display module assemblies on the box through 8 carriages, can produce 8 assembly tolerance accumulations, lead to assembling on the box after, piece effect diverse between the display module assembly. Adopt this disclosed embodiment's technical scheme, 2 display module assemblies of a carriage installation, 8 display module assemblies are installed on the box through 4 carriage, produce 4 times assembly tolerance accumulation, promote the uniformity of piece between the display module assembly of equipment on the box greatly, are favorable to realizing no piece in the vision.

By actually implementing the techniques of the embodiments of the present disclosure, the pixel deviation between the display modules 22 can be controlled at about 10 μm, and seamless stitching is achieved.

The assembling process of the display device of the embodiment of the disclosure comprises the following steps:

adhering each display module to the corresponding position of the support frame by adopting double faced adhesive tapes and through the alignment of the first positioning cursor and the second positioning cursor; installing a first switching circuit board corresponding to each display module on one surface of the support frame, which is far away from the display module; at least one display assembly unit is arranged on the box body through a magnetic attraction structure under the presetting of the positioning structure.

The display device provided by the embodiment of the disclosure is as follows: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

In the description of the present specification, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different features of the disclosure. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present disclosure. Moreover, the present disclosure may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

While the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (9)

1. A display device, comprising: the display assembly unit comprises a supporting frame and a plurality of display modules arranged on the supporting frame;

a positioning structure is arranged between the supporting frame and the box body so as to limit the relative position of the supporting frame and the box body.

2. The display device according to claim 1, wherein the support frame is connected to the box body through a magnetic attraction structure, one of the support frame and the box body is provided with a plurality of magnetic attraction bodies, the other one of the support frame and the box body is provided with a plurality of magnetic attraction columns, and each magnetic attraction column is in corresponding adsorption connection with each magnetic attraction body.

3. The display device according to claim 2, wherein the magnetic body has a groove, and the magnetic pillar has a protrusion, wherein the protrusion is corresponding to the groove.

4. The display device according to claim 1, wherein one of the support frame and the case is provided with a positioning pin, and the other is provided with a positioning hole, and the positioning hole is in insertion fit with the positioning pin.

5. The display device according to claim 1, wherein the material of the support frame comprises aluminum.

6. The display device according to any one of claims 1 to 5, wherein the display module comprises a substrate base plate and a plurality of organic light emitting diodes disposed on the substrate base plate.

7. The display device according to claim 6, wherein a first positioning cursor is disposed on the substrate, a second positioning cursor is disposed on the supporting frame, and the first positioning cursor and the second positioning cursor are aligned to attach the display module to a corresponding position of the supporting frame.

8. The display device according to claim 6, wherein the substrate of the substrate base plate comprises glass, and a pixel pitch between two adjacent organic light emitting diodes is less than or equal to 0.9 mm.

9. The display device according to claim 6,

the display assembly unit comprises a substrate base plate, a plurality of display modules and a plurality of display assembly units, wherein one side of the substrate base plate, which is far away from the organic light-emitting diode, is provided with a flexible circuit board, the display modules further comprise a driving circuit board, the driving circuit board is electrically connected with the flexible circuit board, the display assembly units further comprise a plurality of first switching circuit boards, the first switching circuit boards are in one-to-one correspondence with the display modules, the first switching circuit boards are arranged on one sides, which are far away from the display modules, of the support frames, and the first switching circuit boards are connected with the driving circuit boards of the corresponding display modules;

the box body is internally provided with a second switching circuit board and a power supply, the second switching circuit board is connected with the power supply, and the second switching circuit board is electrically connected with the first switching circuit boards.

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