CN219734740U - Front maintenance display module and display screen - Google Patents

Abstract

The utility model provides a front maintenance display module and a display screen, wherein the front maintenance display module comprises: the device comprises a mounting frame, wherein a plurality of claw structures are arranged on the mounting frame; the panel assembly comprises a supporting substrate and a developing unit, wherein one side of the supporting substrate is attached with the developing unit, and the other side of the supporting substrate is provided with a plurality of fixing columns corresponding to the clamping jaw structures; in the connection state of the panel assembly and the mounting frame, the fixing column is detachably clamped in the claw structure; according to the front maintenance display module and the display screen, the panel assembly is detachably connected with the mounting frame through the fixing columns clamped on the clamping jaw structures, so that the connection strength is guaranteed, the front maintenance is carried out in the direction, and the problem that the outdoor commercial front maintenance display module assembled by magnetic attraction in the prior art is easily limited by factors such as vibration and weather changes, and the module falls off to influence the display function is solved.

Description

Front maintenance display module and display screen

Technical Field

The utility model relates to the technical field of LED large-screen display, in particular to a front maintenance display module and a display screen.

Background

The large screen display has been widely used in commercial scenes such as indoor and outdoor spaces of various large malls, commercial streets, and the like due to the advantages of high brightness, long service life, wide viewing angle, and the like.

Meanwhile, because customers have more demands on outdoor commercial small-space display screen products on the market, the market share of the display screen products capable of realizing the front maintenance function is relatively large, most of the traditional front maintenance assembly modes of the outdoor commercial display screen module at present adopt magnetic attraction modes, and the magnetic attraction assembly modes are limited to factors such as vibration, weather change and the like in outdoor use, so that the module falls off to influence the display function.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model is to provide a front maintenance display module and a display screen, which solve the problem that the outdoor commercial front maintenance display module assembled by magnetic attraction in the prior art is easily limited by factors such as vibration, weather change, etc., so that the module falls off to affect the display function.

In order to solve the above technical problems, the present utility model provides a front maintenance display module, including:

the device comprises a mounting frame, wherein a plurality of claw structures are arranged on the mounting frame;

the panel assembly comprises a supporting substrate and a developing unit, wherein one side of the supporting substrate is attached with the developing unit, and the other side of the supporting substrate is provided with a plurality of fixing columns corresponding to the clamping jaw structures; and the fixing column is detachably clamped in the claw structure in the connection state of the panel assembly and the mounting frame.

As a more preferred aspect, the front maintenance display module further includes a module lock for detachably disposing the panel assembly on the mounting frame and further reinforcing the connection of the mounting frame to the panel assembly.

As a more preferable scheme, the module lock comprises a lock shell, a locking piece and an unlocking piece, wherein the locking piece and the unlocking piece are arranged in the lock shell, the unlocking piece is connected with the locking piece, the lock shell is fixed on the panel assembly and locks the panel assembly and the mounting frame through the locking piece, and the unlocking piece unlocks the locking piece under the action of external force to separate the panel assembly from the mounting frame; when the front maintenance display module is assembled, the fixing column can be clamped in the claw structure to rapidly position, meanwhile, the panel assembly is fixedly connected with the mounting frame to play a pre-fixing role, then the mounting frame is limited through the locking piece of the module lock, and when the panel assembly is required to be disassembled for front maintenance, the locking piece is unlocked by applying external force to the unlocking piece, so that the mounting frame is separated from the panel assembly.

As a more preferable scheme, the lock case comprises a sliding cavity, the locking piece is arranged in the sliding cavity in a sliding way, the locking piece is connected with the unlocking piece through a first telescopic elastic piece, and the unlocking piece applies an elastic force to the locking piece towards the outer side of the sliding cavity and enables the locking piece to protrude out of the sliding cavity, so that the installation frame is limited; the locking piece protruding from the sliding cavity is used for limiting the fixed main body, the structure is simple, and meanwhile elastic force is applied to the locking piece, so that the locking piece can retract conveniently when receiving reverse force.

As a more preferable scheme, the back of the display unit is provided with a module plugging structure, and the module plugging structure comprises a plugging slot and an interface arranged at the bottom of the plugging slot, and is electrically connected by adopting the plugging structure, so that the display unit is more convenient and quick.

As a more preferable scheme, the back of the display unit is provided with a module waterproof cover for sealing the module connector structure, so that water vapor is prevented from penetrating into the panel assembly, the service life of equipment is shortened, and even short circuit is caused.

As a more preferable scheme, the installation frame is provided with a containing cavity for containing the electric control system and a cover plate for sealing the containing cavity, and the inner side edge of the cover plate is provided with a sealing material, so that water vapor is prevented from penetrating into the containing cavity, the service life of equipment is reduced, and even short circuit is caused.

As a more preferable scheme, the cover plate is provided with a connecting structure corresponding to the module connector structure, the connecting structure comprises a connecting boss and a connecting plug corresponding to the connecting slot and the interface, the edge of the connecting boss is provided with a waterproof sealing ring corresponding to the connecting slot, and the connection between the electric control system and the panel assembly is realized through the connection of the connecting structure arranged on the cover plate and the module connector structure arranged on the display unit; meanwhile, the waterproof sealing ring ensures that water vapor cannot permeate into the panel assembly, so that the service life of equipment is reduced, and even short circuit is caused.

The utility model also provides a display screen, comprising:

the front maintenance display module; the display screen is formed by splicing adjacent front maintenance display modules in pairs.

As a more preferable scheme, the corresponding two sides of the installation frame are respectively provided with a chamfer, and the adjacent front maintenance display modules are arranged at a preset angle by aligning the tangential planes of the chamfer; therefore, different display effects can be more embodied, and the use scenes are enriched.

As described above, the front maintenance display module and the display screen have the following beneficial effects: in the assembly process of the front maintenance display module, the fixing columns are clamped in the claw structures to realize the connection of the panel assembly and the mounting frame, and meanwhile, when the front maintenance display module needs to be disassembled, the front maintenance display module is adsorbed on the front surface of the display unit through the adsorption tool and is pulled up by force, so that the fixing columns of the support substrate are driven to be separated from the claw structures, and the panel assembly is detached from the mounting frame to facilitate maintenance operation from the front surface of the display module; the display screen of the front maintenance display module can be maintained from the front conveniently, and the assembly modes of the fixed column and the claw structure are firmer; according to the front maintenance display module and the display screen, the panel assembly is detachably connected with the mounting frame through the fixing columns clamped on the clamping jaw structures, so that the connection strength is guaranteed, the front maintenance is carried out in the direction, and the problem that the outdoor commercial front maintenance display module assembled by magnetic attraction in the prior art is easily limited by factors such as vibration and weather changes, and the module falls off to influence the display function is solved.

Drawings

FIG. 1 is a schematic diagram of a front maintenance display module according to the present utility model;

FIG. 2 shows an enlarged view of a portion of the area A of FIG. 1;

FIG. 3 is a schematic view of a panel assembly of the present utility model;

FIG. 4 shows a partial enlarged view of region B of FIG. 3;

FIG. 5 is a cross-sectional view of C-C of FIG. 4;

FIG. 6 is a schematic view of a mounting frame of the present utility model;

FIG. 7 is a schematic view of an assembled mounting frame and panel assembly according to the present utility model;

FIG. 8 is a schematic view of a display screen of the present utility model;

fig. 9 is a schematic view of another view of the display screen of the present utility model.

Description of element reference numerals

1. Mounting frame

11. Fixing hole

12. Claw structure

121. Base seat

121a limiting hole

122. Spring plate

123. Card and card

13. Accommodating cavity

14. Electric control system

15. Cover plate

151. Connection structure

151a connection boss

151b plug

16. Corner cut

17. Connecting groove

18. Connecting block

2. Panel assembly

21. Support substrate

22. Imaging unit

23. Fixing column

231. Limiting part

232. Projection part

233. Connecting part

24. Module plug-in structure

241. Socket

242. Interface

25. Module waterproof cover

3. Module lock

31. Lock shell

311. Sliding cavity

312. Limiting groove

313. Groove

314. Push-in groove

315. Stop block

32. Locking piece

321. Spring bolt

321a wedge-shaped surface

322. Guide rod

33. Unlocking piece

331. Raised portion

332. Unlocking part

333. Pushing and closing part

334. Stop block

334a anti-skid structure

34. First telescopic elastic piece

35. Second telescopic elastic piece

4. Waterproof sealing ring

5. Adsorption tool

6. Unlocking tool

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, but rather by the claims, unless otherwise indicated, and unless otherwise indicated, all changes in structure, proportions, or otherwise, used by those skilled in the art, are included in the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

As shown in fig. 1 to 9, the present utility model provides a front maintenance display module, comprising:

the device comprises a mounting frame 1, wherein a plurality of claw structures 12 are arranged on the mounting frame 1;

a panel assembly 2, wherein the panel assembly 2 comprises a supporting substrate 21 and a developing unit 22, one side of the supporting substrate 21 is attached with the developing unit 22, and the other side is provided with a plurality of fixing columns 23 corresponding to the claw structures 12; in the connected state of the panel assembly 2 and the mounting frame 1, the fixing post 23 is detachably clamped in the claw structure 12.

In the assembly process of the front maintenance display module, the fixing columns 23 are clamped in the claw structures 12 to realize the connection of the panel assembly 2 and the mounting frame 1, and meanwhile, when the front maintenance display module needs to be disassembled, the front maintenance display module is adsorbed on the front surface of the display unit 22 through the adsorption tool 5 and the display unit 22 is pulled up forcefully, so that the fixing columns 23 of the support substrate 21 are driven to be separated from the claw structures 12, and the panel assembly 2 is detached from the mounting frame 1, so that the front surface of the display module is convenient for maintenance operation.

In this embodiment, as shown in fig. 1, the installation frame 1 is correspondingly provided with a plurality of panel assemblies 2, the plurality of panel assemblies 2 are uniformly arranged on the installation frame 1, and the panel assemblies 2 can be selectively increased or decreased according to the size of the required breadth of the display screen, the installation frame 1 is uniformly provided with a plurality of fixing holes 11, and a plurality of claw structures 12 are disposed in the fixing holes 11.

In this embodiment, as shown in fig. 2, the claw structure 12 includes a base 121, a plurality of elastic pieces 122 integrally formed with the base 121, and a plurality of cards 123, wherein gaps between the plurality of elastic pieces 122 are used for accommodating the fixing columns 23, and the elastic pieces 122 clamp the fixing columns 23, the cards 123 are used for fixing the claw structure 12 with the connecting hole, and the elastic pieces 122 are used for clamping the fixing columns 23, so that the assembly and the disassembly of the panel assembly 2 are more convenient, and the center of the base 121 is provided with a limiting hole 121a. In this embodiment, as shown in fig. 2, the plurality of elastic pieces 122 and the card 123 are uniformly staggered on the base 121, so that the stress of the fixing base and the fixing column 23 is more uniform; more specifically, the jaw structure 12 includes three spring plates 122 and three cards 123, so that the structural simplicity is ensured as much as possible under the requirement of meeting the connection strength. In this embodiment, as shown in fig. 2, one end of the card 123 is connected to the base 121, the other end extends towards the outer side of the base 121, and the opening of the card 123 is larger than the aperture of the connecting hole, when the jaw structure 12 is installed, the end of the base 121 is placed into the connecting hole, the card 123 is limited by the entrance of the connecting hole, the other end of the card 123 contracts into the connecting hole and is clamped with the side wall of the connecting hole, when the fixing column 23 is required to be pulled out from the jaw structure 12, the card 123 clamps the side wall of the connecting hole, so that the fixing column 23 is prevented from bringing the jaw structure 12 out.

In this embodiment, as shown in fig. 2, the fixing post 23 includes an integrally formed limiting portion 231, a protruding portion 232, and a connecting portion 233; the fixed column 23 is connected with the support substrate 21 through a connection part 233; the limiting part 231 comprises a limiting groove 312 adapted to the limiting hole 121a, and when the fixing column 23 is clamped on the jaw structure 12, the limiting part 231 extends into the limiting hole 121a and the limiting groove 312 limits the wall of the limiting hole 121 a; and the protruding portion 232 abuts against the base 121, and the elastic piece 122 limits the protruding portion 232.

In this embodiment, as shown in fig. 3, the front maintenance display module further includes a module lock 3, where the module lock 3 is disposed on the back of the panel assembly 2, so as to detachably dispose the panel assembly 2 on the mounting frame 1, and further strengthen the connection between the mounting frame 1 and the panel assembly 2.

In this embodiment, as shown in fig. 4 and 5, the module lock 3 includes a lock case 31, and a locking member 32 and an unlocking member 33 disposed in the lock case 31, the unlocking member 33 is connected to the locking member 32, the lock case 31 is fixed to the panel assembly 2, and locks the panel assembly 2 with the mounting frame 1 through the locking member 32, and the unlocking member 33 unlocks the locking member 32 under an external force, so that the panel assembly 2 is separated from the mounting frame 1; when the front maintenance display module is assembled, the fixing column 23 can be clamped in the claw structure 12 to perform quick positioning, meanwhile, the panel assembly 2 is fixedly connected with the installation frame 1 to perform a pre-fixing function, then the installation frame 1 is limited through the locking piece 32 of the module lock 3, and when the panel assembly 2 needs to be disassembled for front maintenance, the locking piece 32 is unlocked by applying an external force to the unlocking piece 33, so that the installation frame 1 is separated from the panel assembly 2.

In this embodiment, as shown in fig. 5, the lock housing 31 includes a sliding cavity 311, the locking member 32 is slidably disposed in the sliding cavity 311, the locking member 32 is connected to the unlocking member 33 by a first telescopic elastic member 34, and the unlocking member 33 applies an elastic force to the locking member 32 toward the outside of the sliding cavity 311, and makes the locking member 32 protrude out of the sliding cavity 311, thereby limiting the mounting frame 1; the locking piece 32 protruding from the sliding cavity 311 is used for limiting the fixed main body, so that the structure is simple, and meanwhile, elastic force is applied to the locking piece 32, so that the locking piece 32 can retract conveniently when receiving reverse force.

Further, in this embodiment, as shown in fig. 4 and 5, the locking tongue 321 is in a wedge structure, and the wedge surface 321a faces the fixed body, so when the module lock 3 is pushed into the limiting structure of the fixed body, the limiting structure of the fixed body presses the locking tongue 321 back to the sliding cavity 311, and rebounds after the module lock 3 is clamped in place, so that the fixed body is limited, and the installation of the installation and fixing structure of this embodiment is more convenient. Further, in this embodiment, as shown in fig. 5, the guide rod 322 is slidably disposed in the limit groove 312, and under the action of the first telescopic elastic member 34, the lock tongue 321 protrudes from the sliding cavity 311, and meanwhile, the guide rod 322 is limited by the limit groove 312, and in this embodiment, the guide rod 322 plays a role in guiding and limiting the lock tongue 321.

Still further, in this embodiment, as shown in fig. 4 and 5, the protrusion is disposed in the groove 313 to limit the unlocking member 33, and the protrusion and the groove 313 are in loose fit with each other to limit the unlocking member 33, so that the unlocking member 33 can be unlocked conveniently by using external force subsequently; further, in this embodiment, as shown in fig. 4 and fig. 5, the lock housing 31 is connected to the unlocking member 33 by the second telescopic elastic member 35, the lock housing 31 applies an elastic force to the unlocking member 33 away from the locking member 32, the unlocking member 33 further includes an unlocking portion 332 integrally formed with the protruding portion 331, in this embodiment, the unlocking portion 332 is disposed at one end away from the locking portion, and when the unlocking portion 332 receives an external force, the unlocking portion 332 drives the protruding portion 331 to separate from the groove 313, the protruding portion 331 can be conveniently separated from the groove 313 by using the unlocking portion 332, more specifically, the direction of the external force received here is perpendicular to the groove 313 and the protruding portion 331 has a tendency to move in a direction away from the groove 313, and meanwhile, the external force can be a contact force, such as a pressure force, an elastic force, or a non-contact force, such as a magnetic force, an electromagnetic force, or the like; further, in this embodiment, the front surface of the panel assembly 2 is provided with an unlocking hole, the unlocking hole is in conduction with the bottom of the groove 313, when the panel assembly 2 needs to be detached, an external force directed away from the groove 313 is applied to the protrusion from the bottom of the groove 313 through the unlocking hole by the unlocking tool 6, so that the protrusion is disengaged from the groove 313, and the module lock 3 is unlocked, so that maintenance operation is more conveniently performed from the front of the panel assembly 2.

Further, in this embodiment, as shown in fig. 5, the pushing portion 333 is integrally formed with the protruding portion 331 and the unlocking portion 332, and the pushing portion 333 protrudes out of the pushing groove 314, so that after the protruding portion 331 is separated from the recess 313, a user can push the pushing portion 333 and overcome the elastic force of the second elastic telescopic member 35, so as to push the protruding portion 331 into the recess 313, and the user can reset the module lock 3 by using the pushing portion 333 after unlocking the module lock 3 by using the unlocking portion 332, and in this embodiment, an anti-slip structure 334a, such as an anti-slip pad, an anti-slip score line, etc., is further provided on the pushing portion 333, so as to facilitate the user to push the pushing portion 333; further, in the present embodiment, after the protrusion 331 is separated from the groove 313, the second telescopic elastic member 35 applies an elastic force to the unlocking member 33 toward the outside of the sliding cavity 311, and the unlocking member 33 moves toward the outside of the sliding cavity 311 and stops after the stop portion 334 of the unlocking member 33 contacts the stop block 315 of the lock housing 31; further, in this embodiment, the first telescopic elastic member 34 and the second telescopic elastic member 35 may be springs.

In this embodiment, as shown in fig. 3, the back of the display unit 22 is provided with a module socket structure 24, which includes a socket 241 and an interface 242 disposed at the bottom of the socket 241, and the socket structure is used to electrically connect the modules, which is more convenient and quick.

In this embodiment, as shown in fig. 6, the installation frame 1 is provided with a containing cavity 13 for containing the electric control system 14 and a cover plate 15 for sealing the containing cavity 13, and a sealing material is arranged at the edge of the inner side of the cover plate 15, so that it is ensured that water vapor cannot penetrate into the containing cavity 13, the service life of the equipment is reduced, and even a short circuit is caused; further, in this embodiment, the cover 15 is fixed to the mounting frame 1 by loosening the screws, so that the cover 15 is loosened and falls from a high place to cause a danger. The cover 15 is provided with a plurality of connection structures 151 corresponding to the module connector structure, and the connection structures 151 include connection bosses 151a and connection plugs 151b corresponding to the connection slots 241 and the interfaces 242.

Further, in this embodiment, as shown in fig. 3 and 7, two module locks 3 are disposed on the back of the display unit 22, two module plugging structures 24 are disposed on the back of the display unit, and two module plugging structures 24 are disposed on the back of the display unit; the other module plug-in structure 24 with the connection structure 151 of apron 15 links to each other, connect boss 151a with connect slot 241 alignment, the plug is inserted and is located connect in slot 241, so realized electrical system 14 with panel assembly 2's connection, simultaneously connect boss 151a with connect still be provided with waterproof sealing ring 4 between slot 241, waterproof sealing ring 4 set up in connect boss waterproof groove on boss 151a, guaranteed that steam can not permeate panel assembly 2, reduce equipment life even lead to the short circuit.

The utility model also provides a display screen, comprising:

the front maintenance display module; the display screen is formed by splicing adjacent front maintenance display modules in pairs.

The display screen of the front maintenance display module can be maintained from the front conveniently, and the assembly modes of the fixed column 23 and the claw structure 12 are firmer.

In this embodiment, as shown in fig. 8 and 9, the corresponding two sides of the mounting frame 1 are respectively provided with a chamfer 16, and the adjacent front maintenance display modules are aligned with the chamfer 16 to form a preset angle arrangement; different display effects can be more embodied, and the use scenes are enriched; further, in this embodiment, the corresponding positions on two sides of the mounting frame 1 are respectively provided with a connection block 18 and a threaded hole, the connection block 18 is interchangeably disposed in the connection groove 17 on one side of the mounting frame 1, the connection block 18 includes a plurality of types adapted to different chamfer 16 for replacement, the connection block 18 is provided with a threaded hole with a corresponding angle, and the loose screw passes through the threaded holes on the corresponding positions of the mounting frame 1 and the connection block 18 to align the tangential planes of adjacent chamfer 16 with each other; further in this embodiment, the angles of the corresponding two side chamfer 16 of the mounting frame 1 are 45 °, so that the display screen is formed by splicing, the angle between the two panels is 90 °, and the spliced display screen is a right angle screen.

In summary, according to the front maintenance display module and the display screen of the present utility model, the panel assembly 2 is detachably connected to the mounting frame 1 through the fixing posts 23 clamped on the jaw structures 12, so that the connection strength is ensured, and the front maintenance is performed in the front direction, thereby solving the problem that the outdoor commercial front maintenance display module assembled by magnetic attraction in the prior art is easily limited to factors such as vibration, weather change, etc., and the module falls off to affect the display function. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. A front maintenance display module, comprising:

the device comprises a mounting frame (1), wherein a plurality of claw structures (12) are arranged on the mounting frame (1);

the panel assembly (2), the panel assembly (2) comprises a supporting substrate (21) and a developing unit (22), wherein the developing unit (22) is attached to one side of the supporting substrate (21), and a plurality of fixing columns (23) corresponding to the claw structures (12) are arranged on the other side of the supporting substrate; in the connection state of the panel assembly (2) and the mounting frame (1), the fixing column (23) is detachably clamped in the claw structure (12).

2. The front maintenance display module of claim 1, wherein: the front maintenance display module further comprises a module lock (3) for detachably arranging the panel assembly (2) on the mounting frame (1).

3. The front maintenance display module of claim 2, wherein: the module lock (3) comprises a lock shell (31), a locking piece (32) and an unlocking piece (33), wherein the locking piece (32) and the unlocking piece (33) are arranged in the lock shell (31), the unlocking piece (33) is connected with the locking piece (32), the lock shell (31) is fixed on the panel assembly (2), the panel assembly (2) is locked with the mounting frame (1) through the locking piece (32), and the unlocking piece (33) is used for unlocking the locking piece (32) under the action of external force, so that the panel assembly (2) is separated from the mounting frame (1).

4. A front maintenance display module according to claim 3, wherein: the lock shell (31) comprises a sliding cavity (311), the locking piece (32) is arranged in the sliding cavity (311) in a sliding mode, the locking piece (32) is connected with the unlocking piece (33) through a first telescopic elastic piece (34), the unlocking piece (33) is applied to the locking piece (32) to enable the locking piece (32) to protrude out of the sliding cavity (311) to limit the installation frame (1), and the elastic force towards the outer side of the sliding cavity (311) is applied to the locking piece (33).

5. The front maintenance display module of claim 1, wherein: the back of the display unit (22) is provided with a module plugging structure (24) which comprises a plugging slot (241) and an interface (242) arranged at the bottom of the plugging slot (241).

6. The front maintenance display module of claim 5, wherein: the back of the display unit (22) is provided with a module waterproof cover (25) for sealing the module connector structure.

7. The front maintenance display module of claim 5, wherein: the mounting frame (1) is provided with a containing cavity (13) for containing the electric control system (14) and a cover plate (15) for sealing the containing cavity (13), and sealing materials are arranged on the inner side edge of the cover plate (15).

8. The front maintenance display module of claim 7, wherein: the cover plate (15) is provided with a connecting structure (151) corresponding to the module connector structure, the connecting structure (151) comprises a connecting boss (151 a) and a connecting plug (151 b) corresponding to the connecting slot (241) and the interface (242), and the edge of the connecting boss (151 a) is provided with a waterproof sealing ring (4) corresponding to the connecting slot (241).

9. A display screen, comprising:

a number of the pre-maintenance display modules of any one of claims 1 to 8; the display screen is formed by splicing adjacent front maintenance display modules in pairs.

10. A display screen as recited in claim 9, wherein: the front maintenance display modules are arranged at preset angles by aligning the tangent planes of the tangent angles (16).