CN220752988U - Display device - Google Patents

Abstract

The application belongs to the field of display, and particularly relates to a display device, which comprises at least two spliced box body components and a connecting component, wherein the box body components comprise at least one box body unit, the connecting component at least comprises one of a first connecting sheet and a second connecting sheet, the first connecting sheet is used for connecting the box body units spliced in the left-right direction, and the second connecting sheet is used for connecting the box body units spliced in the up-down direction; the first connecting piece comprises a first connecting hole and a first adjusting hole, the first connecting hole and the first adjusting hole are in one-to-one correspondence with the box body unit, the connecting assembly further comprises a fastener, the fastener is connected with the back plate of the box body unit through the first connecting hole, and the first adjusting hole is used for installing the fastener to be in butt joint with the back plate; the second connecting piece correspondingly comprises a second connecting hole and a second adjusting hole. The first adjusting holes and the second adjusting holes are used for installing fasteners to push the box body units, so that flatness adjustment of adjacent box body units is realized, and the display effect of the display device is improved.

Description

Display device

Technical Field

The application belongs to the field of display, and particularly relates to a display device.

Background

The LED (Lighting Emitting Diode, light emitting diode) display screen has the characteristics of high light emitting brightness, high light emitting efficiency, bright color, high contrast, short response time, wide working temperature range, low energy consumption and the like, and is widely applied to commercial display equipment such as stage display equipment, advertisement display equipment, data visualization display equipment and the like.

The LED display screen comprises an arc display screen, the arc display screen is formed by splicing a plurality of display panels, and the display panels can be arc display panels or plane display panels. The display panel comprises a driving substrate and LED chips arranged on the driving substrate in an array mode. The smoothness of the arc display screen depends on the rotation angle degree of each display panel and the splicing dislocation condition. Because the luminous point of the LED chip is very small, the requirement on splicing dislocation of the display panel is very high and is generally not more than 0.03 mm. If the splicing dislocation of the display panel is too large, the light of the LED chip at the lower side can be shielded, and the display effect is seriously affected.

The existing arc-shaped display screen is formed by splicing small boxes with different angles on the basis of standard boxes, the processing difficulty is high, errors are easy to accumulate, splicing dislocation of the display panel is difficult to guarantee, and the display effect is seriously affected.

Disclosure of Invention

An object of the application is to provide a display device to reduce display panel concatenation dislocation, improve the display effect of arc display screen.

In order to achieve the above object, the present application provides a display device, a case assembly, at least two of the case assemblies are spliced, the case assembly includes at least one case unit, and the case unit includes a back plate;

the connecting assembly at least comprises one of a first connecting sheet and a second connecting sheet, the box body unit comprises a left-right direction and a vertical direction which are opposite, the first connecting sheet is used for connecting the box body units spliced in the left-right direction, and the second connecting sheet is used for connecting the box body units spliced in the vertical direction; the first connecting piece comprises a first connecting hole and a first adjusting hole, the first connecting hole and the first adjusting hole are in one-to-one correspondence with the box body unit, the connecting assembly further comprises a fastener, the fastener is connected with the back plate of the box body unit through the first connecting hole, and the first adjusting hole is used for installing the fastener to be in butt joint with the back plate; the second connecting piece comprises a second connecting hole and a second adjusting hole, the second connecting hole and the second adjusting hole are in one-to-one correspondence with the box body units, the fastening pieces are connected with the back plate of the box body units through the second connecting hole, and the second adjusting hole is used for installing the fastening pieces and is in butt joint with the back plate.

Optionally, the first connecting piece sets up the contained angle at the both ends of first connecting hole is less than 180 degrees, the second connecting piece sets up the contained angle at the both ends of second connecting hole equals 180 degrees.

Optionally, the first connecting piece still includes first locating hole, first locating hole with box unit one-to-one, first locating hole includes unthreaded hole portion and screw thread portion, the backplate with first locating hole corresponds the position and is provided with first opposition hole, coupling assembling includes first reference column, first reference column inserts first locating hole with first opposition hole location first connecting piece with box unit, first reference column with the screw thread portion threaded connection of first locating hole.

Optionally, the box assembly includes a plurality of the box unit, a plurality of the box unit left and right direction concatenation is adjacent connect through between the box unit the first connecting piece.

Optionally, the display device includes at least four box components, the connection components further include a third connection piece and a second positioning column, the adjacent four box units are connected through the third connection piece, the first connection piece and the second connection piece are disposed on one side of the back plate, and the third connection piece is disposed on the other side of the back plate;

the third connecting piece includes third connecting hole and second locating hole, the third connecting hole with four adjacent box units one-to-one, the fastener passes through the third connecting hole with the backplate is connected, the second locating hole includes unthreaded hole portion and screw thread portion, the backplate with the second locating hole corresponds the position and is provided with the second opposition hole, the second reference column inserts the second locating hole with the second opposition hole location the third connecting piece with box unit, the second reference column with the screw thread portion threaded connection of second locating hole.

Optionally, the back plate further includes a third adjusting hole, where the third adjusting hole is used to mount the fastener and abut against the third connecting piece.

Optionally, the box unit further includes a side plate, the side plate surrounds the backplate sets up, be provided with fourth regulation hole on the side plate, fourth regulation hole is used for installing the fastener with the side plate butt of another adjacent box unit about.

Optionally, the box unit further includes a side plate, the side plate is disposed around the back plate, and in the side plate in the up-down direction: one is provided with a third positioning hole, the other is provided with a third positioning column, and the box units which are adjacently arranged in the up-down direction are positioned through the third positioning column and the third positioning hole.

Optionally, the display device further includes a display panel, the box unit further includes a side plate, the side plate surrounds the back plate, and the display panel is disposed on one side of the side plate away from the back plate.

Optionally, a magnetic unit is disposed on the back plate, and the display panel is connected with the box unit through the magnetic unit.

The display device disclosed by the application has the following beneficial effects:

in this application, a display device includes: the box body assembly and coupling assembling, at least two box body assembly splices, box body assembly includes at least one box body unit, box body unit includes the backplate, coupling assembling includes at least one of first connecting piece and second connecting piece, first connecting piece is used for connecting the box body unit of left and right directions concatenation, the second connecting piece is used for connecting the box body unit of direction concatenation from top to bottom, first connecting piece includes first connecting hole and first regulation hole, the fastener passes through first connecting hole and is connected with the backplate of box body unit, first regulation hole is used for installing fastener and backplate butt, corresponding second connecting piece includes second connecting hole and second regulation hole. The first adjusting holes and the second adjusting holes are used for installing fasteners to push the box body units, so that flatness adjustment of adjacent box body units is realized, and the display effect of the display device is improved.

Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a display device in an embodiment of the present application.

Fig. 2 is a schematic structural view of a case unit in the embodiment of the present application.

Fig. 3 is a schematic diagram of a connection structure of a box unit spliced in the left-right direction in the embodiment of the present application.

Fig. 4 is a schematic structural view of a first connecting piece in an embodiment of the present application.

Fig. 5 is a schematic view of a first attachment tab mounting fastener in an embodiment of the application.

Fig. 6 is a schematic diagram of a connection structure of a box unit spliced in the up-down direction in the embodiment of the present application.

Fig. 7 is a schematic structural view of a first connecting piece in an embodiment of the present application.

Fig. 8 is a schematic side view of a first connecting tab in an embodiment of the present application.

Fig. 9 is a schematic view of a first connector piece mounting location post in an embodiment of the present application.

Fig. 10 is a schematic structural view of a case assembly according to an embodiment of the present application.

Fig. 11 is a schematic view of a connection structure of a box assembly according to an embodiment of the present application.

Fig. 12 is a schematic structural view of a third connecting piece in an embodiment of the present application.

Reference numerals illustrate:

100. a housing assembly;

110. a case unit; 111. a back plate; 1111. a first opposing aperture; 1112. a second opposing aperture; 1113. a third adjustment aperture; 1114. a magnetic attraction unit; 1115. a first threaded hole; 1116. a second threaded hole; 112. a side plate; 1121. a fourth adjustment aperture; 1122. a third positioning hole; 1123. a third positioning column; 1124. a wire through hole;

120. a signal processing module;

210. a first connecting piece; 211. a first connection hole; 212. a first adjustment aperture; 213. a first positioning hole;

220. a second connecting piece; 221. a second connection hole; 222. a second adjustment aperture;

230. a fastener;

241. a first positioning column; 242. a second positioning column;

250. a third connecting piece; 251. a third connection hole; 252. a second positioning hole;

300. a display panel.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The present application is further described in detail below with reference to the drawings and specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 1 to 7, the display device in this embodiment includes: the box body assembly 100 and coupling assembling, at least two box body assemblies 100 splice, coupling assembling is used for connecting the box body assembly 100 of concatenation. The housing assembly 100 includes at least one housing unit 110, the housing unit 110 including a back plate 111. In addition, the case unit 110 may further include a side plate 112, and the side plate 112 is disposed around the back plate 111. The case unit 110 has opposite left and right directions and up and down directions. The case assembly 100 may be spliced in the left-right direction of the case unit 110, or may be spliced in the up-down direction of the case unit 110.

The connection assembly includes at least one of a first connection piece 210 and a second connection piece 220, wherein the first connection piece 210 is used for connecting the box units 110 spliced in the left-right direction, and the second connection piece 220 is used for connecting the box units 110 spliced in the up-down direction. That is, when the case assembly 100 is spliced in the left-right direction of the case unit 110, the connection assembly includes the first connection piece 210; when the case assembly 100 is spliced along the up-down direction of the case unit 110, the connection assembly includes a second connection piece 220; when part of the case assembly 100 is spliced in the left-right direction of the case unit 110 and part of the case assembly 100 is spliced in the up-down direction of the case unit 110, the connection assembly includes a first connection piece 210 and a second connection piece 220.

Specifically, the first connection piece 210 includes a first connection hole 211 and a first adjustment hole 212, and the first connection hole 211 and the first adjustment hole 212 are in one-to-one correspondence with the case unit 110, that is, the first connection piece 210 has two first connection holes 211 and two first adjustment holes 212. The connection assembly also includes a fastener 230, the fastener 230 comprising a screw or bolt. The fastening member 230 is connected to the back plate 111 of the case unit 110 through the first connection hole 211, a first threaded hole 1115 connected to the fastening member 230 is provided in the back plate 111, and the first adjustment hole 212 is used for installing the fastening member 230 to abut against the back plate 111. The second connection piece 220 includes a second connection hole 221 and a second adjustment hole 222, and the second connection hole 221 and the second adjustment hole 222 are in one-to-one correspondence with the case unit 110. The fastening member 230 is connected to the back plate 111 of the case unit 110 through a second connection hole 221, a second threaded hole 1116 connected to the fastening member 230 is provided in the back plate 111, and the second adjustment hole 222 is used for installing the fastening member 230 to abut against the back plate 111. Relief holes are formed in the side plate 112 corresponding to the first connecting piece 210 and the second connecting piece 220.

The first connection piece 210 and the second connection piece 220 may be both provided inside the case unit 110, that is, the back plate 111 is provided with the side plate 112 side. When the left and right spliced box units 110 are misplaced, the fastener 230 in the first connecting hole 211 higher than one side can be loosened, and the fastener 230 is installed in the first adjusting hole 212 on the same side, so that the box units 110 higher than one side are pushed backwards until the box units are level to the left and right, and the flatness adjustment is realized. Correspondingly, when the vertically spliced box body units 110 are dislocated, the fastening pieces 230 are installed in the second adjusting holes 222 to push the box body units 110, so that the flatness of the two box body units 110 in the vertical direction can be adjusted.

The existing arc-shaped display screen is formed by splicing small boxes with different angles on the basis of standard boxes, the processing difficulty is high, errors are easy to accumulate, splicing dislocation of the display panel is difficult to guarantee, and the display effect is seriously affected.

In this embodiment, a display device includes: the box assembly 100 and coupling assembling, at least two box assemblies 100 splice, box assembly 100 includes at least one box unit 110, box unit 110 includes backplate 111, coupling assembling includes at least one of first connection piece 210 and second connection piece 220, first connection piece 210 is used for connecting the box unit 110 of left and right direction concatenation, second connection piece 220 is used for connecting the box unit 110 of upper and lower direction concatenation, first connection piece 210 includes first connecting hole 211 and first regulation hole 212, fastener 230 is connected with backplate 111 of box unit 110 through first connecting hole 211, first regulation hole 212 is used for installing fastener 230 and backplate 111 butt, corresponding second connection piece 220 includes second connecting hole 221 and second regulation hole 222. The first adjusting hole 212 and the second adjusting hole 222 are provided with the fastening piece 230 to push the box body unit 110, so that the flatness adjustment of the adjacent box body units 110 is realized, and the display effect of the display device is improved.

In addition, the box assembly 100 in the present application is an independent module formed by the box units 110, and the box units 110 in the box assembly 100 are spliced in advance, so that accumulated errors can be reduced. Meanwhile, the box body assembly 100 is spliced in advance, so that the difficulty in installing the display device on site can be reduced, and the manufacturing cost of the display device can be reduced.

Referring to fig. 7 and 8, the first connection tab 210 is disposed at both ends of the first connection hole 211 at an angle less than 180 degrees, for example, the first connection tab 210 is disposed at both ends of the first connection hole 211 at an angle of 177 degrees. For display devices of different radians, this can be achieved by exchanging the first connection piece 210 of different angles. The second connection piece 220 is provided with the second connection hole 221 having both ends at an angle equal to 180 degrees. The case unit 110 may be a rectangular case.

The first connection piece 210 has a certain angle at both ends, and the case units 110 spliced in the left-right direction have a certain angle to splice an arc-shaped display device. The included angle between the two ends of the second connecting piece 220 is equal to 180 degrees, that is, the second connecting piece 220 is a planar connecting piece, and the box unit 110 spliced in the up-down direction has no radian.

It should be noted that, the included angle between the two ends of the first connecting piece 210 is smaller than 180 degrees, but not limited thereto, the included angle between the two ends of the first connecting piece 210 may be equal to 180 degrees, that is, the display device is a flat panel display device, and may be specific as occasion demands. The included angle between the two ends of the second connecting piece 220 is equal to 180 degrees, but not limited thereto, and the included angle between the two ends of the second connecting piece 220 may be smaller than 180 degrees, as the case may be.

Referring to fig. 4, 5 and 9, the first connection piece 210 further includes first positioning holes 213, and the first positioning holes 213 are in one-to-one correspondence with the case units 110. The first positioning hole 213 includes a unthreaded hole portion and a threaded portion. The back plate 111 is provided with a first opposing hole 1111 at a position corresponding to the first positioning hole 213, and the first opposing hole 1111 is a light hole. The connection assembly includes a first positioning post 241, and the first positioning post 241 is inserted into the first positioning hole 213 and the first opposite hole 1111 to position the first connection piece 210 and the case unit 110. The first positioning post 241 is screwed with the screw portion of the first positioning hole 213. The first positioning post 241 is inserted into the first opposing hole 1111 at one end thereof with a chamfer design.

The first connection piece 210 and the case unit 110 are connected by the fastener 230 in the first connection hole 211, and the fastener 230 is positioned with low accuracy, which easily causes the adjacent case unit 110 to be installed with a misalignment. The first connecting piece 210 further comprises a first positioning hole 213, a first opposite hole 1111 is formed in a position, corresponding to the first positioning hole 213, of the back plate 111, the first positioning column 241 is inserted into the first positioning hole 213 and the first opposite hole 1111 to position the first connecting piece 210 and the box unit 110, the shaft hole matching positioning precision is high, the mounting dislocation of the adjacent box units 110 is small, and the leveling is easy to be performed in a mode that the box unit 110 is pushed by the mounting fastener 230 through the first adjusting hole 212.

Referring to fig. 10, the case assembly 100 includes a plurality of case units 110, the case units 110 are spliced in a left-right direction, and adjacent case units 110 are connected by a first connection piece 210. The housing assembly 100 includes, for example, four housing units 110. When the box assembly 100 is assembled, the four box units 110 are arranged in one fixture, so that the box units 110 are guaranteed to be installed in place, and then the first connecting sheets 210 are used for connection and leveling.

The housing assembly 100 may further include a signal processing module 120 and a power module, wherein the signal processing module 120 is disposed in one of the housing units 110, and the power module is disposed in the other housing unit 110. In some embodiments, the signal processing module 120 and the power module may also be disposed within the same housing unit 110. The side plates 112 of the box units 110 are further provided with wire passing holes 1124 for facilitating routing wires between adjacent box units 110.

The case assembly 100 includes a plurality of case units 110, and the plurality of case units 110 may share the signal processing module 120 and the power module. In addition, the case units 110 are spliced into the case assembly 100 in advance, so that accumulated errors can be reduced.

Referring to fig. 11 and 12, the display device includes at least four case assemblies 100, and the case assemblies 100 are spliced in a left-right direction and then spliced in an up-down direction. The connection assembly further includes a third connection piece 250 and a second positioning post 242, the adjacent four case units 110 are connected through the third connection piece 250, the first connection piece 210 and the second connection piece 220 are disposed at the inner side of the back plate 111, and the third connection piece 250 is disposed at the outer side of the back plate 111.

The third connection piece 250 includes a third connection hole 251 and a second positioning hole 252, and the third connection hole 251 corresponds to the adjacent four case units 110 one by one. The fastening member 230 is coupled to the back plate 111 through the third coupling hole 251, and a third screw hole coupled to the fastening member 230 is provided in the back plate 111. The second positioning holes 252 may correspond to the adjacent four case units 110 one by one, or may be provided with one to two, as the case may be. The second positioning hole 252 includes a light hole portion and a screw portion, a second opposite hole 1112 is provided at a position of the back plate 111 corresponding to the second positioning hole 252, the second positioning column 242 is inserted into the second positioning hole 252 and the second opposite hole 1112 to position the third connecting piece 250 and the case unit 110, and the second positioning column 242 is screw-connected to the screw portion of the second positioning hole 252. One end of the second positioning post 242 inserted into the second opposite hole 1112 is chamfered.

The third connection piece 250 and the case unit 110 are connected by the fastener 230 in the third connection hole 251, and the fastener 230 has low positioning accuracy, which easily causes the adjacent case unit 110 to be installed in a malposition. The third connecting piece 250 further comprises a third connecting hole 251, a second opposite hole 1112 is formed in the position, corresponding to the third connecting hole 251, of the back plate 111, the second positioning column 242 is inserted into the third connecting hole 251 and the second opposite hole 1112 to position the third connecting piece 250 and the box body unit 110, shaft hole matching positioning accuracy is high, and mounting dislocation of adjacent box body units 110 is small.

Referring to fig. 2, 11 and 12, the back plate 111 further includes a third adjustment aperture 1113, the third adjustment aperture 1113 being configured to receive the fastener 230 in abutment with the third connection tab 250.

When the flatness of the two box units 110 at the joint of the two box assemblies 100 in the left-right direction is adjusted, the fastening piece 230 of the lower box unit 110 can be loosened, and the third connecting piece 250 is pushed by installing the fastening piece 230 in the third adjusting hole 1113, so that the flatness of the two box units 110 in the left-right direction is adjusted.

It should be understood that, for the two case units 110 where the two case assemblies 100 are spliced in the left-right direction, leveling can be performed by installing the fastener 230 in the third adjusting hole 1113, so that the first connection piece 210 between the two case units 110 can be omitted, thereby reducing the manufacturing cost of the display device.

Referring to fig. 2, the case unit 110 further includes a side plate 112, and the side plate 112 is disposed around the back plate 111. The side plate 112 is provided with a fourth adjustment hole 1121, and the fourth adjustment hole 1121 is used for abutting the mounting fastener 230 against the side plate 112 of the other case unit 110 adjacent to the left and right.

The fastener 230 is installed in the fourth adjusting hole 1121 to push the other box unit 110, so that the interval between two adjacent box units 110 can be adjusted.

Referring to fig. 2, in the side plate 112 in the up-down direction: one is provided with a third positioning hole 1122 and the other is provided with a third positioning post 1123. The case units 110 adjacently disposed in the up-down direction are positioned by the third positioning posts 1123 and the third positioning holes 1122. One end of the third positioning column 1123 inserted into the third positioning hole 1122 has a chamfer design.

The third positioning column 1123 and the third positioning hole 1122 are in shaft hole fit, and positioning accuracy is high. When the box units 110 adjacent in the up-down direction are assembled, the third positioning columns 1123 and the third positioning holes 1122 are used for positioning, and then the second connecting sheet 220 is used for adjusting the flatness, so that the flatness adjusting range is smaller, and the two box units 110 adjacent in the up-down direction can be leveled more quickly.

Referring to fig. 1 and 2, the display device further includes a display panel 300, the case unit 110 further includes a side plate 112, the side plate 112 is disposed around the back plate 111, and the display panel 300 is disposed on a side of the side plate 112 away from the back plate 111. The display panel 300 may include a driving substrate and a light emitting chip disposed on the driving substrate, and the light emitting chip may be packaged using COB (chip on Board). The display panel 300 may include an arc-shaped display panel and a flat display panel.

The display panel 300 is disposed at a side of the side plate 112 remote from the back plate 111, and the signal processing module 120 and the power module may be disposed between the display panel 300 and the back plate 111.

Referring to fig. 1 and 2, a magnetic unit 1114 is provided on the back plate 111, and the display panel 300 is connected to the case unit 110 through the magnetic unit 1114.

The display panel 300 is connected with the case unit 110 through the magnetic unit 1114, and the display panel 300 can be quickly assembled and disassembled.

The terms "first," "second," and the like 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 defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, reference to the terms "some embodiments," "exemplary," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the embodiments by one of ordinary skill in the art within the scope of the application, and therefore all changes and modifications that fall within the spirit and scope of the utility model as defined by the claims and the specification of the application are intended to be covered thereby.

Claims (10)

1. A display device, comprising:

the box body assembly is spliced by at least two box body assemblies, the box body assembly comprises at least one box body unit, and the box body unit comprises a back plate;

the connecting assembly at least comprises one of a first connecting sheet and a second connecting sheet, the box body unit comprises a left-right direction and a vertical direction which are opposite, the first connecting sheet is used for connecting the box body units spliced in the left-right direction, and the second connecting sheet is used for connecting the box body units spliced in the vertical direction; the first connecting piece comprises a first connecting hole and a first adjusting hole, the first connecting hole and the first adjusting hole are in one-to-one correspondence with the box body unit, the connecting assembly further comprises a fastener, the fastener is connected with the back plate of the box body unit through the first connecting hole, and the first adjusting hole is used for installing the fastener to be in butt joint with the back plate; the second connecting piece comprises a second connecting hole and a second adjusting hole, the second connecting hole and the second adjusting hole are in one-to-one correspondence with the box body units, the fastening pieces are connected with the back plate of the box body units through the second connecting hole, and the second adjusting hole is used for installing the fastening pieces and is in butt joint with the back plate.

2. The display device according to claim 1, wherein the first connection piece is provided with an angle of less than 180 degrees at both ends of the first connection hole, and the second connection piece is provided with an angle of equal to 180 degrees at both ends of the second connection hole.

3. The display device according to claim 2, wherein the first connection piece further includes a first positioning hole which corresponds to the case unit one by one, the first positioning hole includes a light hole portion and a screw portion, a first opposite hole is provided at a position of the back plate corresponding to the first positioning hole, the connection assembly includes a first positioning post which is inserted into the first positioning hole and the first opposite hole to position the first connection piece and the case unit, and the first positioning post is screw-coupled with the screw portion of the first positioning hole.

4. The display device according to claim 1, wherein the case assembly includes a plurality of the case units, the case units are spliced in a left-right direction, and adjacent case units are connected by the first connection piece.

5. The display device of claim 4, wherein the display device comprises at least four of the case assemblies, the connection assembly further comprises a third connection piece and a second positioning post, adjacent four of the case units are connected by the third connection piece, the first connection piece and the second connection piece are disposed on one side of the back plate, and the third connection piece is disposed on the other side of the back plate;

the third connecting piece includes third connecting hole and second locating hole, the third connecting hole with four adjacent box units one-to-one, the fastener passes through the third connecting hole with the backplate is connected, the second locating hole includes unthreaded hole portion and screw thread portion, the backplate with the second locating hole corresponds the position and is provided with the second opposition hole, the second reference column inserts the second locating hole with the second opposition hole location the third connecting piece with box unit, the second reference column with the screw thread portion threaded connection of second locating hole.

6. The display device of claim 5, wherein the back plate further comprises a third adjustment aperture for mounting the fastener in abutment with the third connecting tab.

7. The display device according to any one of claims 1 to 6, wherein the case unit further includes a side plate provided around the back plate, and a fourth adjustment hole is provided in the side plate, the fourth adjustment hole being for mounting the fastener in abutment with a side plate of another case unit adjacent to the left and right.

8. The display device according to any one of claims 1 to 6, wherein the case unit further includes a side plate provided around the back plate, and wherein, in the side plate in the up-down direction: one is provided with a third positioning hole, the other is provided with a third positioning column, and the box units which are adjacently arranged in the up-down direction are positioned through the third positioning column and the third positioning hole.

9. The display device according to any one of claims 1 to 6, further comprising a display panel, wherein the case unit further comprises a side plate, wherein the side plate is disposed around the back plate, and wherein the display panel is disposed on a side of the side plate away from the back plate.

10. The display device according to claim 9, wherein a magnetic attraction unit is provided on the back plate, and the display panel is connected to the case unit through the magnetic attraction unit.