CN113516922A

CN113516922A - Tiled display device and assembling method thereof

Info

Publication number: CN113516922A
Application number: CN202110849479.6A
Authority: CN
Inventors: 李登仟
Original assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-19
Anticipated expiration: 2041-07-27
Also published as: CN113516922B

Abstract

The application discloses a splicing display device and an assembling method of the splicing display device, wherein the splicing display device comprises a back plate, at least one first display module and at least one second display module, the first display module is arranged on the back plate, and the first display module is provided with a first splicing surface; the second display module is arranged on the back plate and is spliced with the first display module, the second display module is provided with a second splicing surface, and the second splicing surface is arranged opposite to the first splicing surface; the orthographic projection of the first splicing surface on the plane where the back plate is located is at least partially overlapped with the orthographic projection of the second splicing surface on the plane where the back plate is located. The application improves the visual quality of the Micro LED spliced screen.

Description

Tiled display device and assembling method thereof

Technical Field

The application relates to the technical field of display, in particular to a tiled display device and an assembling method of the tiled display device.

Background

At present, an existing Micro-LED (Micro-LED) tiled screen is generally assembled by attaching a Micro-LED glass substrate to a back plate with positioning holes, and fitting the positioning holes of the back plate with positioning posts on a display support frame.

However, when the Micro LED glass substrates are attached to the back plate, there is an assembly tolerance, and after the back plate is fixed to the positioning holes, there is a machining tolerance at the positioning holes, and there is a machining error in any adjacent positioning holes. Therefore, after the back plates are assembled on the display support, due to the accumulation of tolerance, uneven and large gaps exist between the adjacent Micro LED glass substrates, and therefore the visual taste of the Micro LED spliced screen is reduced.

Disclosure of Invention

The embodiment of the application provides a tiled display device and an assembling method of the tiled display device, and aims to solve the technical problem that the visual quality of a Micro LED tiled screen in the prior art is reduced.

The embodiment of the application provides a tiled display device, tiled display device includes:

a back plate;

the first display module is arranged on the back plate and is provided with a first splicing surface; and

the second display module is arranged on the back plate and is spliced with the first display module, and the second display module is provided with a second splicing surface which is arranged opposite to the first splicing surface;

the orthographic projection of the first splicing surface on the plane where the back plate is located is at least partially overlapped with the orthographic projection of the second splicing surface on the plane where the back plate is located.

Optionally, in some embodiments of the present application, the first display module includes a first display main body and a first substrate that are sequentially disposed on the backplane, and the first splicing surface is a side surface of the first substrate;

the second display module comprises a second display main body and a second substrate which are sequentially arranged on the back plate, and the second splicing surface is the side surface of the second substrate.

Optionally, in some embodiments of the present application, a surface of the first substrate close to the first display body is a first surface, the first splicing surface is connected to the first surface, and the first splicing surface and the first surface form a first inclination angle M, where 0 ° < M <90 °;

one surface of the second substrate, which is close to the second display main body, is a second surface, the second splicing surface is connected with the second surface, a second inclination angle N is formed between the second splicing surface and the second surface, the angle N is 90 degrees and less than 180 degrees, and the sum of M and N is less than or equal to 180 degrees.

Optionally, in some embodiments of the present application, the sum of M and N is equal to 180 °.

Optionally, in some embodiments of the present application, the first substrate includes a first side surface, a second side surface, a third side surface, and a fourth side surface that are sequentially connected end to end, where the first side surface is the first splicing surface, and the second side surface, the third side surface, and the fourth side surface all form the first inclination angle M with the first surface;

the second substrate comprises a fifth side face, a sixth side face, a seventh side face and an eighth side face which are sequentially connected end to end, the fifth side face is a second splicing face, and the sixth side face, the seventh side face and the eighth side face form a second inclination angle N with the second surface.

Optionally, in some embodiments of the present application, the first splicing surface is a concave surface, the concave surface is recessed towards a direction away from the second display module, the second splicing surface is a convex surface, the convex surface is protruded towards a direction close to the first display module, and the concave surface matches with the convex surface.

Optionally, in some embodiments of the present application, the first display main body includes a third substrate and a first light-emitting main body sequentially disposed on the back plate, the first light-emitting main body is located between the first substrate and the third substrate, and an orthogonal projection of the first splicing surface on the plane where the back plate is located outside an orthogonal projection of the third substrate on the plane where the back plate is located;

the second display main body comprises a fourth substrate and a second light-emitting main body which are sequentially arranged on the back plate, the second light-emitting main body is located between the second substrate and the fourth substrate, and the orthographic projection of the second splicing surface on the plane where the back plate is located on the outer side of the orthographic projection of the fourth substrate on the plane where the back plate is located.

Optionally, in some embodiments of the present application, the tiled display device includes a supporting substrate and at least two tiled display units disposed on the supporting substrate, where each tiled display unit includes the back plate, at least one of the first display modules and at least one of the second display modules.

The embodiment of the application further provides an assembling method of the tiled display device, which comprises the following steps:

providing a back plate, at least one first display module and at least two second display modules, wherein the first display module is provided with at least two adjacent first splicing surfaces, and the second display module is provided with at least one second splicing surface;

and transferring the first display module and the second display module to the backboard, wherein the second splicing surface of each second display module is arranged opposite to the corresponding first splicing surface, and the orthographic projection of the first splicing surface on the plane of the backboard is at least partially overlapped with the orthographic projection of the second splicing surface on the plane of the backboard.

Optionally, in some embodiments of the present application, the first display module includes a first display main body and a first substrate, which are sequentially disposed, at least two adjacent side surfaces of the first substrate are the first splicing surfaces, one surface of the first substrate, which is close to the first display main body, is a first surface, the first splicing surfaces are connected to the first surface, the first splicing surfaces and the first surface form a first inclination angle M, where 0 ° < M <90 °; the second display module comprises a second display main body and a second substrate which are sequentially arranged, at least one side surface of the second substrate is a second splicing surface, one surface, close to the second display main body, of the second substrate is a second surface, the second splicing surface is connected with the second surface, a second inclination angle N is formed by the second splicing surface and the second surface, 90 degrees < N <180 degrees, and the sum of M and N is less than or equal to 180 degrees; the step of transferring the first display module and the second display module to the back plate comprises:

transferring the first display module to the back plate by adopting a first adsorption device;

and transferring the second display module to the back plate by adopting a second adsorption device so as to enable the second splicing surface to be attached to the corresponding first splicing surface.

Compare in the tiled display device among the prior art, in the tiled display device that this application provided, first display module assembly has first concatenation face, the second display module assembly has second concatenation face, second concatenation face and first concatenation face set up relatively, this application is through making first concatenation face in the planar orthographic projection of backplate place and second concatenation face in the planar orthographic projection at least part overlap of backplate place, the gap between first concatenation face and the second concatenation face has been reduced, thereby can reduce the gap between first display module assembly and the second display module assembly, in order to improve tiled display device's visual taste.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a tiled display device according to a first embodiment of the present application.

Fig. 2 is a schematic structural diagram of a tiled display device according to a second embodiment of the present application.

Fig. 3 is a schematic top view illustrating a first display module in a tiled display device according to a second embodiment of the present disclosure.

Fig. 4 is a schematic top view illustrating a second display module in a tiled display apparatus according to a second embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a tiled display device according to a third embodiment of the present application.

Fig. 6 is a schematic structural diagram of a tiled display device according to a fourth embodiment of the present application.

Fig. 7 is a schematic flowchart of an assembling method of a tiled display device provided in the present application.

Fig. 8(a) to 8(d) are schematic structural diagrams obtained at various stages in an assembly method of a tiled display device provided in the present application.

Fig. 9(a) to 9(c) are schematic flow structure diagrams of a replacement method when the display of the first display module in the tiled display device provided by the present application is abnormal.

Fig. 10(a) to 10(c) are schematic flow structure diagrams of a replacement method when the display of the second display module in the tiled display device provided by the present application is abnormal.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.

The embodiment of the application provides a tiled display device and an assembling method of the tiled display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

The application provides a tiled display device, tiled display device includes backplate, an at least first display module assembly and an at least second display module assembly. The first display module is arranged on the back plate. The first display module is provided with a first splicing surface. The second display module is arranged on the back plate and is spliced with the first display module. The second display module is provided with a second splicing surface, and the second splicing surface is opposite to the first splicing surface. The orthographic projection of the first splicing surface on the plane where the back plate is located is at least partially overlapped with the orthographic projection of the second splicing surface on the plane where the back plate is located.

From this, among the tiled display device that this application provided, through making first concatenation face in the planar orthographic projection of backplate place and the planar orthographic projection at least part overlap of second concatenation face in backplate place, reduced the gap between first concatenation face and the second concatenation face to can reduce the gap between first display module assembly and the second display module assembly, with the visual taste that improves tiled display device.

Referring to fig. 1, a tiled display device 100 is provided in a first embodiment of the present application. The tiled display device 100 includes a back plate 100a, at least one first display module 10, and at least one second display module 20. The first display module 10 is disposed on the back plate 100 a. The first display module 10 has a first splicing surface 10 a. The second display module 20 is disposed on the back plate 100 a. The second display module 20 is connected to the first display module 10. The second display module 20 has a second splicing surface 20 a. The second splicing surface 20a is disposed opposite to the first splicing surface 10 a. The orthographic projection of the first splicing surface 10a on the plane of the back plate 100a is at least partially overlapped with the orthographic projection of the second splicing surface 20a on the plane of the back plate 100 a.

It should be noted that, in the present application, the number of the first display module 10 and the number of the second display module 20 may be set according to actual situations, and this embodiment only illustrates a structure when the number of the first display module 10 and the number of the second display module 20 are both one, but is not limited thereto.

Specifically, the back plate 100a is used for supporting the first display module 10 and the second display module 20. The back plate 100a may be a rigid back plate or a flexible back plate, and the specific material of the back plate 100a may refer to the prior art, which is not limited in this application.

It should be noted that, in the present application, the first display module 10 and the second display module 20 can be separately and correspondingly provided with a supporting backboard (not shown) on the side close to the backboard 100a, and the supporting backboard is used for supporting the first display module 10 and the second display module 20 and preventing the first display module 10 and the second display module 20 from being worn during the assembling process.

The first display module 10 includes a first display main body 11 and a first substrate 12 sequentially disposed on the back plate 100 a. The first display main body 11 may be a Micro LED lamp panel or a submillimeter-level light Emitting Diode (Mini LED) lamp panel, and the following embodiments of the application only take the first display main body 11 as the Micro LED lamp panel for illustration, but not limited thereto.

The first display body 11 includes a third substrate 111 and a first light emitting body 112 sequentially disposed on the rear plate 100 a. The first light emitting body 112 is positioned between the first substrate 12 and the third substrate 111. The third substrate 111 is a driving substrate for driving the first light-emitting body 112 to emit light. The third substrate 111 may be a glass-based driving substrate. The first light emitting body 112 is a Micro LED display layer, and the specific structure of the Micro LED display layer may refer to the prior art, which is not described herein again.

The first substrate 12 may be a package substrate. The packaging substrate can be a glass substrate or a PCB substrate. In the present embodiment, the first substrate 12 is a glass substrate. Since the glass substrate has good flatness, the display effect of the tiled display device 100 can be improved when the glass substrate is used as the package substrate.

In the present embodiment, the first splicing surface 10a is a side surface of the first substrate 12. One surface of the first substrate 12 close to the first display main body 11 is a first surface 12 a. The first splicing face 10a is connected to the first surface 12 a. The first splicing face 10a forms a first inclination angle M with the first surface 12 a. 0 ° < M <90 °. In some particular embodiments, M may be 30 °, 45 °, 50 °, 60 °, 75 °, 80 °, or 85 °. The first inclination angle M can be formed by edging the side surface of the first substrate 12, and the specific edging process can refer to the prior art and is not described herein again.

The second display module 20 includes a second display main body 21 and a second substrate 22 sequentially disposed on the back plate 100 a. The second display main body 21 may be a Micro LED lamp panel or a Mini LED lamp panel, and the following embodiments of the present application will be described by taking the second display main body 21 as the Micro LED lamp panel as an example, but the present application is not limited thereto.

The second display body 21 includes a fourth substrate 211 and a second light emitting body 212 sequentially disposed on the rear panel 100 a. The second light emitting body 212 is positioned between the second substrate 22 and the fourth substrate 211. The fourth substrate 211 is a driving substrate for driving the second light emitting body 212 to emit light. The fourth substrate 211 may be a glass-based driving substrate. The second light emitting body 212 is a Micro LED display layer, and the specific structure of the Micro LED display layer may refer to the prior art, which is not described herein again.

The second substrate 22 may be a package substrate. The packaging substrate can be a glass substrate or a PCB substrate. In the present embodiment, the second substrate 22 is a glass substrate. Since the glass substrate has good flatness, the display effect of the tiled display device 100 can be improved when the glass substrate is used as the package substrate.

In the present embodiment, the second splicing surface 20a is a side surface of the second substrate 22. One surface of the second substrate 22 close to the second display main body 21 is a second surface 22 a. The second splicing surface 20a is connected to the second surface 22 a. The second splicing face 20a forms a second inclination angle N with the second surface 22 a. 90 < N < 180. In some particular embodiments, N may be 100 °, 110 °, 120 °, 130 °, 145 °, 160 °, or 175 °. The second inclination angle N may be formed by performing edging on the side surface of the second substrate 22, and the specific edging process may refer to the prior art and is not described herein again.

In the present embodiment, the sum of M and N is equal to 180 °. The first splicing surface 10a and the second splicing surface 20a can be completely attached after splicing by the arrangement, so that a gap can be prevented from being generated between the first display module 10 and the second display module 20, and the visual taste of the splicing display device 100 can be improved. It should be noted that, in some embodiments, the sum of M and N may also be less than 180 °, and will not be described herein.

Further, an orthogonal projection of the first splicing surface 10a on the plane of the back plate 100a is located outside an orthogonal projection of the third substrate 111 on the plane of the back plate 100 a. The orthographic projection of the second splicing surface 20a on the plane of the back plate 100a is located outside the orthographic projection of the fourth substrate 211 on the plane of the back plate 100 a. The first display main body 11 and the second display main body 21 have a splicing seam (not marked in the figure), and the orthographic projections of the first splicing surface 10a and the second splicing surface 20a on the plane of the back panel 100a are both located in the orthographic projection of the splicing seam on the plane of the back panel 100 a.

In the above arrangement, the size of the first substrate 12 is larger than that of the third substrate 111, and the size of the second substrate 22 is larger than that of the fourth substrate 211, so that the seam between the first display body 11 and the second display body 21 can be minimized, and the display effect of the tiled display apparatus 100 can be further improved.

It should be noted that, in the present embodiment, the tiled display device 100 may further include a supporting frame (not shown in the figure) fixed to the back plate 100a, and the specific structure of the supporting frame may refer to the prior art, which is not described herein again.

Referring to fig. 2 to 4, a tiled display device 100 is provided in a second embodiment of the present application. The second embodiment of the present application provides a tiled display apparatus 100 that is different from the first embodiment in that: the first substrate 12 includes a first side 121, a second side 122, a third side 123 and a fourth side 124 connected end to end in sequence. The first side surface 121 is the first splicing surface 10 a. The second side 122, the third side 123 and the fourth side 124 form a first inclination angle M with the first surface 12 a. The second substrate 22 includes a fifth side 221, a sixth side 222, a seventh side 223 and an eighth side 224 which are connected end to end in sequence. The fifth side 221 is the second splicing surface 20 a. The sixth side 222, the seventh side 223 and the eighth side 224 form a second inclination angle N with the second surface 22 a.

When the number of the first display modules 10 and the number of the second display modules 20 are two or more, the four sides of the first substrate 12 and the first surface 12a all form the first inclination angle M, and the four sides of the second substrate 22 and the second surface 22a all form the second inclination angle N therebetween, so that the requirement for splicing a plurality of display modules can be met.

Referring to fig. 5, a tiled display device 100 is provided according to a third embodiment of the present application. The third embodiment of the present application provides a tiled display apparatus 100 that is different from the second embodiment in that: the first splicing surface 10a is a concave surface. The concave surface is concavely arranged in a direction away from the second display module 20. The second splicing surface 20a is convex. The convex surface is arranged to be convex toward the direction close to the first display module 10. The concave surface and the convex surface are matched.

In this embodiment, the concave surface and the convex surface are attached to each other, so that a gap between the first display module 10 and the second display module 20 can be avoided. In some embodiments, due to the splicing tolerance, there may be a certain gap between the concave surface and the convex surface, and it is within the scope of the present application as long as the concave surface and the convex surface have an overlap in the orthographic projection of the plane where the back plate 100a is located.

This embodiment sets up to the concave surface through setting up first concatenation face 10a, and second concatenation face 20a sets up to the convex surface with concave surface assorted, because concave surface and convex surface laminating set up, consequently, can avoid producing the gap between first display module assembly 10 and the second display module assembly 20 to can improve tiled display device 100's vision taste.

Referring to fig. 6, a tiled display device 100 is provided in a fourth embodiment of the present application. The fourth embodiment of the present application provides a tiled display apparatus 100 that differs from the second embodiment in that: the tiled display device 100 includes a supporting substrate 100A and at least two tiled display units 101 disposed on the supporting substrate 100A. Each tiled display unit 101 includes a back plate 100a, at least one first display module 10, and at least one second display module 20.

The inventor of this application discovers in the experiment is explored, when a display module assembly corresponds a backplate, because all there is the equipment tolerance between a plurality of backplates and the supporting substrate that tiled display device used, consequently, when assembling a plurality of display module assemblies that are provided with the backplate to supporting substrate on, because the existence of equipment tolerance between a plurality of backplates, in tiled display device after the equipment, all can have obvious gap between a plurality of adjacent display module assemblies to be unfavorable for improving tiled display device's visual taste.

In this embodiment, through making first display module assembly 10 and second display module assembly 20 share a backplate 100a, when a plurality of display module assemblies need to splice, at first display module assembly 10 and second display module assembly 20's quantity regularly, can reduce the use quantity of backplate 100a to can reduce the assembly tolerance because of the backplate 100a is more and cause, and then can improve tiled display device 100's visual quality greatly.

It should be noted that, in the present embodiment, the number of the tiled display units 101 in the tiled display apparatus 100 can be set according to the actual application requirement, and the present embodiment only illustrates the structure when the number of the tiled display units 101 is two, but is not to be construed as a limitation to the present application. In addition, in each tiled display unit 101, the number of the first display modules 10 and the second display modules 20 can also be set according to the size of the tiled display device 100, which is not limited in the present application.

Referring to fig. 7, an embodiment of the present application further provides an assembling method of a tiled display device, where the assembling method of the tiled display device includes the following steps:

b1: providing a back plate, at least one first display module and at least two second display modules, wherein the first display module is provided with at least two adjacent first splicing surfaces, and the second display module is provided with at least one second splicing surface;

b2: and transferring the first display module and the second display module to the backboard, wherein the second splicing surface of each second display module is arranged opposite to the corresponding first splicing surface, and the orthographic projection of the first splicing surface on the plane of the backboard is at least partially overlapped with the orthographic projection of the second splicing surface on the plane of the backboard.

In the assembling method of the tiled display device provided by this embodiment, after the first display module and the second display module are transferred to the backplane, because the orthographic projection of the first tiled surface on the plane where the backplane is located and the orthographic projection of the second tiled surface on the plane where the backplane is located are at least partially overlapped, the gap between the assembled first tiled surface and the assembled second tiled surface can be reduced, that is, the abutted seam between the first display module and the adjacent second display module can be reduced, so that the visual quality of the tiled display device can be improved.

It should be noted that, the present embodiment only illustrates the structure when the number of the first display modules is one and the number of the second display modules is two, but the present invention is not limited thereto. Wherein, the quantity of first concatenation face and the quantity of second concatenation face can be set for according to the concatenation demand of first display module assembly and second display module assembly, as long as guarantee that the concatenation side of first display module assembly is equipped with first concatenation face and the concatenation side of second display module assembly is equipped with the second concatenation face, all are in the protection scope of this application.

The assembling method of the tiled display device provided in this embodiment is explained in detail below.

B1: a back plate 100a, a first display module 10 and two second display modules 20 are provided, the first display module 10 has at least two adjacent first splicing surfaces 10a, and the second display module 20 has at least one second splicing surface 20a, as shown in fig. 8 (a).

Before step B1, the method further includes: the side surface of the first substrate 12 is edged to form a first splicing surface 10a, and the side surface of the second substrate 22 is edged to form a second splicing surface 20 a.

In this embodiment, the first display module 10 includes a first display main body 11 and a first substrate 12 sequentially disposed. The first display body 11 includes a third substrate 111 and a first light emitting body 112 sequentially disposed. The first light emitting body 112 is positioned between the first substrate 12 and the third substrate 111. At least two adjacent side surfaces of the first substrate 12 are both the first splicing surfaces 10 a. One surface of the first substrate 12 close to the first display main body 11 is a first surface 12 a. The first splicing face 10a is connected to the first surface 12 a. The first splicing face 10a forms a first inclination angle M with the first surface 12 a. 0 ° < M <90 °.

The second display module 20 includes a second display main body 21 and a second substrate 22 sequentially disposed. The second display body 21 includes a fourth substrate 211 and a second light emitting body 212 sequentially disposed. The second light emitting body 212 is positioned between the second substrate 22 and the fourth substrate 211. At least one side of the second substrate 22 is a second splicing surface 20 a. One surface of the second substrate 22 close to the second display main body 21 is a second surface 22 a. The second splicing surface 20a is connected to the second surface 22 a. The second splicing face 20a forms a second inclination angle N with the second surface 22 a. 90 < N < 180.

In the present embodiment, the sum of M and N is equal to 180 °. In some embodiments, the sum of M and N may also be less than 180 °, which is not described herein.

B2: the first display module 10 and the second display module 20 are transferred to the back panel 100a, the second splicing surface 20a of each second display module 20 is arranged opposite to the corresponding first splicing surface 10a, and the orthographic projection of the first splicing surface 10a on the plane of the back panel 100a is at least partially overlapped with the orthographic projection of the second splicing surface 20a on the plane of the back panel 100 a.

Wherein, the step B2 specifically comprises the following steps:

b21: the first display module 10 is transferred onto the backplane 100a using the first suction device 30, as shown in fig. 8 (b).

Wherein the first suction device 30 includes a first suction cup 301 and a first suction tube 302 connected to the first suction cup 301.

B22: the second display module 20 is transferred to the back plate 100a by using the second adsorption device 40, so that the second splicing surface 20a is attached to the corresponding first splicing surface 10a, as shown in fig. 8(c) and 8 (d).

Wherein, the second suction device 40 includes a second suction cup 401 and a second suction pipe 402 connected to the second suction cup 401.

In this embodiment, in the process of transferring the second display module 20 to the back plate 100a by using the second adsorption device 40, the second display module 20 can be gradually close to the first display module 10 along the direction perpendicular to the back plate 100a, and is attached to the first display module 10.

Because the first inclination angle M between the first splicing surface 10a and the first surface 12a of the first display module 10 is an acute angle, the second inclination angle N between the second splicing surface 20a and the second surface 22a of the second display module 20 is an obtuse angle, and the sum of M and N is 180 °, when the second display module 20 is transferred in the direction perpendicular to the backplane 100a, before the first splicing surface 10a and the second splicing surface 20a are attached, abrasion between the first display module 10 and the second display module 20 due to contact does not occur. In addition, because the first substrate 12 and the third substrate 111 in the first display module 10 and the second substrate 22 and the fourth substrate 211 in the second display module 20 are made of glass, the above arrangement can reduce the probability of breakage of the splicing side in the assembling process of the first display module 10 and the second display module 20, thereby improving the product yield of the splicing display device 100.

To the concatenation display screen, when the display module assembly in the concatenation display screen takes place to show when unusual, need take off from the concatenation display screen the display module assembly that shows unusually usually to change for new display module assembly. In current concatenation display screen, the display module assembly passes through the backplate and is connected to on the support frame to realize the position control of backplate and support frame through the screw, with the gap of adjusting between the adjacent display module assembly.

The inventor of this application discovers in the experimental investigation that when the gap between arbitrary adjacent display module assembly is too small, if the display module assembly appears showing unusually and when needing to be changed, need will treat that the display module assembly of the display module assembly week side of changing is whole to be taken off, just can realize the change of this display module assembly that shows unusually. Especially, to the concatenation display screen of constituteing by a plurality of display module assemblies, when the display module assembly that the concatenation screen middle zone takes place to show unusually needs to be changed, need with the whole removals of other display module assemblies except the display module assembly of treating to change, just can realize display module assembly's change, from this can greatly reduced display module assembly's change efficiency.

In view of the above technical problems, an embodiment of the present application further provides a method for replacing a display module that displays an abnormal display in a tiled display device. The tiled display device can be the tiled display device 100 assembled by the assembling method of the tiled display device in the foregoing embodiment.

With reference to fig. 9(a) to 9(c), when the first display module 10 is abnormal in display and needs to be replaced, the method for replacing the first display module 10 includes the following steps:

first, the second display module 20 around the first display module 10 to be replaced is adsorbed by the second adsorption device 40, so that the second display module 20 around the first display module 10 to be replaced is separated from the back plate 100a, as shown in fig. 9 (a);

next, the first suction device 30 is used to suck the first display module 10 to be replaced, so that the first display module 10 to be replaced is detached from the back plate 100a, as shown in fig. 9 (b);

finally, the new first display module 10 'displaying normally and the second display module 20 removed from the back plate 100a are assembled according to the assembling method of the tiled display device 100 described in the foregoing embodiment, and an assembled tiled display device 100' is obtained, as shown in fig. 9 (c).

When the quantity of first display module assembly 10 and second display module assembly 20 is a plurality of, if the first display module assembly 10 that needs to be changed is located the central region of tiled display device 100, only need take off with the second display module assembly 20 that waits the first display module assembly 10 adjacent that is changed, and need not all take off with all second display module assemblies 20 of waiting the first display module assembly 10 week side of changing to can improve the change efficiency who shows unusual display module assembly greatly.

With reference to fig. 10(a) to 10(c), when the second display module 20 is abnormal in display and needs to be replaced, the method for replacing the second display module 20 includes the following steps:

first, case 1: when the second display module 20 on one side of the first display module 10 needs to be replaced, the second adsorption device 40 is used to adsorb the second display module 20 to be replaced, so that the second display module 20 to be replaced is separated from the back plate 100a, as shown in fig. 10 (a); case 2: when the second display modules 20 on two sides of the first display module 10 and above need to be replaced, the second adsorption device 40 is used to adsorb the second display module 20 to be replaced, so that the second display module 20 to be replaced is separated from the back plate 100a, as shown in fig. 10 (b).

Next, taking the above case 2 as an example, after the second display module 20 to be replaced is removed from the back panel 100a, the second display module 20 'with a new display normal is transferred to the back panel 100a according to the assembling method of the tiled display device 100 described in the foregoing embodiment, and a new tiled display device 100' is obtained, as shown in fig. 10 (c).

The tiled display device and the assembling method thereof provided by the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the embodiments above is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A tiled display apparatus, comprising:

a back plate;

2. The tiled display apparatus according to claim 1, wherein the first display module comprises a first display main body and a first substrate sequentially disposed on the backplane, and the first tiled surface is a side surface of the first substrate;

3. The tiled display arrangement according to claim 2, wherein a side of the first substrate close to the first display body is a first surface, the first tiled surface being connected to the first surface, the first tiled surface forming a first tilt angle M with the first surface, 0 ° < M <90 °;

4. A tiled display arrangement according to claim 3, wherein the sum of M and N equals 180 °.

5. The tiled display arrangement according to claim 3, wherein the first substrate comprises a first side, a second side, a third side and a fourth side connected end to end in sequence, the first side is the first tiled surface, and the second side, the third side and the fourth side form the first tilt angle M with the first surface;

6. The tiled display arrangement according to claim 1, wherein the first tiled surface is a concave surface, the concave surface is recessed away from the second display module, the second tiled surface is a convex surface, the convex surface is protruding towards the first display module, and the concave surface and the convex surface are matched.

7. The tiled display apparatus according to claim 2, wherein the first display main body comprises a third substrate and a first light-emitting main body sequentially disposed on the backplane, the first light-emitting main body is located between the first substrate and the third substrate, and an orthographic projection of the first tiled surface on the plane of the backplane is located outside an orthographic projection of the third substrate on the plane of the backplane;

8. The tiled display apparatus according to claim 1, wherein the tiled display apparatus comprises a supporting substrate and at least two tiled display units disposed on the supporting substrate, each of the tiled display units comprising the backplane, at least one of the first display module and at least one of the second display module.

9. An assembling method of a tiled display device, comprising the steps of:

10. The assembling method of the tiled display apparatus according to claim 9, wherein the first display module comprises a first display main body and a first substrate, which are sequentially disposed, at least two adjacent side surfaces of the first substrate are the first tiled surfaces, one surface of the first substrate, which is close to the first display main body, is a first surface, the first tiled surface is connected to the first surface, the first tiled surface and the first surface form a first inclination angle M, where 0 ° < M <90 °; the second display module comprises a second display main body and a second substrate which are sequentially arranged, at least one side surface of the second substrate is a second splicing surface, one surface, close to the second display main body, of the second substrate is a second surface, the second splicing surface is connected with the second surface, a second inclination angle N is formed by the second splicing surface and the second surface, 90 degrees < N <180 degrees, and the sum of M and N is less than or equal to 180 degrees; the step of transferring the first display module and the second display module to the back plate comprises: