CN114863828A - Splicing screen - Google Patents

Abstract

The application provides a concatenation screen, this concatenation screen includes the mother board and binds a plurality of display module assembly on the mother board, a plurality of display module assembly splice each other, every display module assembly is including attached on the mother board and the display panel who is connected with the mother board electricity, display panel includes the display area and is located the outlying edge of display area and walks the line district, at the concatenation department of two adjacent display module assemblies, the orthographic projection coincidence of the at least partial edge of two adjacent display panel walking the line district on the mother board, with the non-display area of the concatenation department that reduces the concatenation screen, and then reduce the concatenation seam of concatenation screen, the problem that there is great concatenation seam in the concatenation department of having solved current concatenation screen.

Description

Splicing screen

Technical Field

The application relates to the technical field of display, in particular to a spliced screen.

Background

With the development of display technology, the application scenes of the display screen are more and more, and large screen display is one of the trends of future development. One of the ways to realize large screen is to splice a plurality of small-sized display screens to form an oversized spliced screen. However, the non-display area is arranged on the periphery of the display area of the existing display screen, and when the spliced screen is formed by splicing a plurality of existing display screens, the non-display areas of the adjacent display screens form a large splicing seam, so that the visual split feeling is caused, the continuity and the integrity of the display picture of the spliced screen are damaged, and the display effect of the spliced screen is reduced.

Disclosure of Invention

The application provides a splicing screen to alleviate the technical problem that there is great concatenation seam in the concatenation department of current splicing screen.

In order to solve the above problems, the technical solution provided by the present application is as follows:

the embodiment of the application provides a concatenation screen, it includes:

a motherboard;

the display module comprises a plurality of display modules, a plurality of display modules and a plurality of display modules, wherein the display modules are bound on the mother board and are spliced with one another, each display module comprises a display panel which is attached to the mother board and is electrically connected with the mother board, and each display panel comprises a display area and an edge wiring area which is positioned on the periphery of the display area;

and at the splicing position of two adjacent display modules, orthographic projections of at least part of the edge wiring areas of the two adjacent display panels on the motherboard are superposed.

In the concatenation screen that this application embodiment provided, adjacent two the display module assembly is first display module assembly and second display module assembly, first display module assembly includes first display panel, second display module assembly includes the second display panel concatenation department, first display panel includes first edge area of walking the line, the second display panel includes the second edge area of walking the line, first edge area of walking the line is located the second edge is walked the line and is distinguished and keep away from one side of mother board.

In the concatenation screen that this application embodiment provided, first edge routing area includes first subregion and is located first subregion is kept away from the second subregion of the display area one side of first display panel, second edge routing area includes third subregion and is located the third subregion is kept away from the fourth subregion of the display area one side of second display panel, the second subregion is in orthographic projection on the motherboard with the fourth subregion is in orthographic projection coincidence on the motherboard, first subregion with the motherboard is connected electrically, the third subregion with the motherboard is connected electrically.

In the concatenation screen that this application embodiment provided, first edge routing district is in orthographic projection on the mother board with second edge routing district is in orthographic projection coincidence on the mother board, first edge routing district passes through second edge routing district with the mother board electricity is connected.

In the concatenation screen that this application embodiment provided, the second edge is walked the line and is distinguished and be provided with the first line and the second of insulating each other and walk the line, first edge is walked the line and is distinguished and pass through first line with the motherboard electricity is connected, the second edge is walked the line and is distinguished and pass through the second walk the line with the motherboard electricity is connected.

In the concatenation screen that this application embodiment provided, second edge routing area is provided with and runs through second display panel's through-hole, first edge routing area passes through the through-hole with the motherboard electricity is connected.

In the concatenation screen that this application embodiment provided, the concatenation screen is still including being located a plurality ofly the display module assembly is kept away from the apron of mother board one side, first display module assembly through first tie coat in the apron, second display module assembly through the second tie coat in the apron, the thickness of second tie coat is greater than the thickness of first tie coat.

In the concatenation screen that this application embodiment provided, first display module assembly is still including being located first display panel keeps away from first polaroid and the first touch-control layer of mother board one side, second display module assembly is still including being located second display panel keeps away from second polaroid and the second touch-control layer of mother board one side, first touch-control layer passes through first tie coat is in the apron, the second touch-control layer passes through the second tie coat is in the apron.

In the spliced screen provided by the embodiment of the application, one side of the first polarizer, which is close to the second polarizer, is flush with the outer boundary of the first edge routing area; one side of the second polaroid, which is close to the first polaroid, is in contact with the first polaroid.

In the concatenation screen that this application embodiment provided, first display module assembly is still including being located first display panel is close to the layer that increases of mother board one side, increase the layer connect in first display panel with the mother board, just it is corresponding to increase the layer one side in first edge routing district is provided with the first district of keeping away, second edge routing district is located the first district of keeping away is interior.

The beneficial effect of this application does: in the concatenation screen that this application provided, the concatenation screen includes the mother board and binds a plurality of display module assembly on the mother board, it is a plurality of the mutual concatenation of display module assembly, every the display module assembly is including attached on the mother board and with the display panel that the mother board electricity is connected, display panel includes the display area and is located the outlying marginal line zone of walking of display area, adjacent two the concatenation department of display module assembly, adjacent two display panel's at least part the marginal line zone of walking is in orthographic projection coincidence on the mother board to reduce the non-display area of the concatenation department of concatenation screen, and then reduce the concatenation seam of concatenation screen, solved the concatenation department of current concatenation screen and had the problem of great concatenation seam.

Drawings

In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic top view structure diagram of a tiled screen provided in an embodiment of the present application.

Fig. 2 is a schematic cross-sectional structure diagram of the spliced screen in fig. 1.

Fig. 3 is another schematic top view structure diagram of the tiled screen according to the embodiment of the present application.

Fig. 4 is a schematic cross-sectional structure diagram of the spliced screen in fig. 3.

Fig. 5 is a detailed structure diagram of the second edge routing area in fig. 4.

Fig. 6 is another detailed structure diagram of the second edge routing area in fig. 4.

Fig. 7 is a schematic cross-sectional view of another spliced screen provided in an embodiment of the present application.

Detailed Description

The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. Directional phrases used in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and understanding, and is in no way limiting. In the drawings, elements having similar structures are denoted by the same reference numerals. In the drawings, the thickness of some layers and regions are exaggerated for clarity of understanding and ease of description. That is, the size and thickness of each component shown in the drawings are arbitrarily illustrated, but the present application is not limited thereto.

Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic top view structure diagram of a tiled screen provided in an embodiment of the present application, and fig. 2 is a schematic cross-sectional structure diagram of the tiled screen in fig. 1. The tiledscreen 1000 includes amotherboard 100 and a plurality of display modules (e.g., afirst display module 201 and asecond display module 202 shown in fig. 1 and 2) bound to themotherboard 100, and the plurality of display modules are tiled together to form a large-sized tiledscreen 1000. Of course, thetiled display screen 1000 can further include acover plate 300 located on a side of the plurality of display modules away from themotherboard 100, where thecover plate 300 is used to protect the plurality of display modules.

Optionally, themotherboard 100 includes acontrol layer 10 and a support member for supporting thecontrol layer 10, where the support member includes aback plate 11 and afunctional layer 12 located on a side of theback plate 11 away from thecontrol layer 10. Theback sheet 11 includes a polyethylene terephthalate (PET) substrate, and the like. Thefunctional layer 12 includes a composite layer such as foam, copper foil, graphite, and the like, and is used for structural reinforcement of theback plate 11 and heat dissipation of thecontrol layer 10.

Thecontrol layer 10 includes a binding terminal, a driving device, and a connection trace connecting the binding terminal and the driving device, where the driving device includes a driving IC and the like. The plurality of display modules are located on one side of thecontrol layer 10 away from thebackplane 11, and are bound to the binding terminals on thecontrol layer 10, so as to electrically connect the display modules and themotherboard 100. Specifically, the driving signal on the driving device is transmitted to the corresponding display module through the connecting wire and the binding terminal in sequence, so that the corresponding display module can display the driving signal. Therefore, the driving device is arranged on themotherboard 100 and is electrically connected with the corresponding display module, so that the space for arranging the driving device on the display module can be saved, the frame of the display module is reduced, the frame area of the spliced part of the display module is reduced, and the splicing seam of the spliced part is reduced.

The following specifically describes how to electrically connect the display module and themotherboard 100 by taking two adjacent display modules spliced with each other as an example:

the two adjacent display modules are afirst display module 201 and asecond display module 202, each of the display modules includes a display area AA and a non-display area surrounding the display area AA, the non-display area includes a first frame area BD1 and a second frame area BD2 located at two opposite sides of the display area AA, and of course, the non-display area may further include a third frame area BD3 connected to the first frame area BD1 and the second frame area BD 2.

The first frame area BD1 of thefirst display module 201 and the first frame area BD1 of thesecond display module 202 are partially overlapped, that is, the orthographic projection of the first frame area BD1 of thefirst display module 201 on themotherboard 100 is overlapped with the orthographic projection of the first frame area BD1 of thesecond display module 202 on themotherboard 100, so that the frame area at the splicing position after thefirst display module 201 and thesecond display module 202 are spliced can be further reduced, and the splicing seam at the splicing position is reduced.

Specifically, each of the display modules includes a display panel attached to themotherboard 100 and electrically connected to themotherboard 100, for example, thefirst display module 201 includes afirst display panel 21 attached to themotherboard 100 and electrically connected to themotherboard 100, and thesecond display module 202 includes asecond display panel 22 attached to themotherboard 100 and electrically connected to themotherboard 100. Each display panel comprises a display area AA and an edge wiring area positioned on the periphery of the display area AA, and the display panel comprises a flexible OLED display panel and the like.

The display area AA of the display panel is a display area AA of the display module, and the edge routing area of the display panel is disposed corresponding to a non-display area of the display module, for example, the edge routing area of the display panel corresponds to the first frame area BD1 and the second frame area BD2 of the display module.

It can be understood that the edge routing area of the display panel is used for setting various binding wires, the binding wires are electrically connected to thecontrol layer 10 on themotherboard 100 to electrically connect the edge routing area to themotherboard 100, and meanwhile, the binding wires are also electrically connected to a driving circuit in the display area AA of the display panel to electrically connect the display panel to themotherboard 100, so as to electrically connect the display module to themotherboard 100. It should be noted that, in the present application, the electrical connection between the edge routing area and themotherboard 100 refers to the electrical connection between the bonding trace in the edge routing area and themotherboard 100.

Furthermore, at the splicing position of two adjacent display modules, at least partial orthographic projections of the edge routing areas of the two adjacent display panels on themotherboard 100 are overlapped, so that partial frames of the splicing position of the two adjacent display modules are overlapped, and further the splicing seam of the splicing position is reduced.

Specifically, at the joint, thefirst display panel 21 includes a firstedge routing area 211, thesecond display panel 22 includes a secondedge routing area 221, and the firstedge routing area 211 is located on a side of the secondedge routing area 221 away from themotherboard 100, so that a height difference is formed between thefirst display panel 21 and thesecond display panel 22. Wherein the height difference means that a distance between thefirst display panel 21 and themotherboard 100 is different from a distance between thesecond display panel 22 and themotherboard 100 in a direction perpendicular to themotherboard 100.

The firstedge routing area 211 corresponds to the first frame area BD1 of thefirst display module 201, and the secondedge routing area 221 corresponds to the first frame area BD1 of thesecond display module 202. The orthographic projection of the firstedge routing area 211 on themotherboard 100 is overlapped with the orthographic projection of the secondedge routing area 221 on themotherboard 100, that is, the firstedge routing area 211 and the secondedge routing area 221 are partially overlapped in space, so that the orthographic projection of the first frame area BD1 of thefirst display module 201 on themotherboard 100 is overlapped with the orthographic projection of the first frame area BD1 of thesecond display module 202 on themotherboard 100, and further the frame area at the joint of thefirst display module 201 and thesecond display module 202 is reduced, so as to reduce the joint seam.

The firstedge routing area 211 includes a first sub-area 2111 and a second sub-area 2112 located on a side of the first sub-area 2111 away from the display area AA of thefirst display panel 21, the secondedge routing area 221 includes athird sub-area 2211 and afourth sub-area 2212 located on a side of thethird sub-area 2211 away from the display area AA of thesecond display panel 22, a forward projection of the second sub-area 2112 on themotherboard 100 coincides with a forward projection of thefourth sub-area 2212 on themotherboard 100, the first sub-area 2111 is electrically connected to themotherboard 100, and thethird sub-area 2211 is electrically connected to themotherboard 100.

So that the firstedge routing region 211 and the secondedge routing region 221 partially coincide to reduce the splice seam; the non-overlapped portion of the firstedge routing region 211 and the secondedge routing region 221 is used for electrically connecting with themotherboard 100, so as to electrically connect thefirst display panel 21 and thesecond display panel 22 with themotherboard 100. For example, the first sub-region 2111 is electrically connected to thecontrol layer 10 of themotherboard 100 through a firstconductive layer 61, and thethird sub-region 2211 is electrically connected to thecontrol layer 10 of themotherboard 100 through a secondconductive layer 62. Alternatively, the material of thefirst Conductive layer 61 and thesecond Conductive layer 62 may include at least one of a Conductive silver paste (ag paste), an Anisotropic Conductive Film (ACF), and the like.

Optionally, thefirst display panel 21 further includes a thirdedge routing area 212 disposed opposite to the firstedge routing area 211, the thirdedge routing area 212 corresponds to the second frame area BD2 of thefirst display module 201, and the thirdedge routing area 212 is also electrically connected to thecontrol layer 10 of themotherboard 100 through the firstconductive layer 61. Correspondingly, thesecond display panel 22 further includes a fourthedge routing area 222 disposed opposite to the secondedge routing area 221, the fourthedge routing area 222 corresponds to the second frame area BD2 of thesecond display module 202, and the fourthedge routing area 222 is also electrically connected to thecontrol layer 10 of themotherboard 100 through the secondconductive layer 62.

In order to achieve the partial overlapping of the firstedge routing area 211 and the secondedge routing area 221 in space, and further form a height difference between thefirst display panel 21 and thesecond display panel 22, thefirst display module 201 further includes a heighteninglayer 71 located on one side of thefirst display panel 21 close to themotherboard 100, and the heighteninglayer 71 is connected to thefirst display panel 21 and themotherboard 100. Specifically, the boostinglayer 71 is connected to thefirst display panel 21 and thecontrol layer 10 of themotherboard 100. Optionally, the material of the enhancinglayer 71 includes an OCA, an OCR, or other adhesive material to bond thefirst display panel 21 and thecontrol layer 10, so as to enhance the stability of the bonding between thefirst display panel 21 and themotherboard 100.

Further, the first space-avoidingarea 711 is disposed on a side of theenhancement layer 71 corresponding to the firstedge routing area 211, and the secondedge routing area 221 is located in the first space-avoidingarea 711, so that the firstedge routing area 211 and the secondedge routing area 221 are partially overlapped in a spatial direction perpendicular to themotherboard 100, so as to reduce a frame area at a joint of thefirst display module 201 and thesecond display module 202.

It can be understood that, due to the partial overlapping of the firstedge routing area 211 and the secondedge routing area 221 in space, a height difference is formed between thefirst display panel 21 and thesecond display panel 22, so that although a splicing seam at the splicing position of thefirst display module 201 and thesecond display module 202 is reduced, the height difference also makes thefirst display panel 21 and thesecond display panel 22 not in the same horizontal plane, which is easy to cause unevenness of the surface of the wholetiled screen 1000. This height difference needs to be filled up for this purpose:

specifically, thefirst display module 201 is attached to thecover plate 300 through a firstadhesive layer 51, thesecond display module 202 is attached to thecover plate 300 through a secondadhesive layer 52, and the thickness of the secondadhesive layer 52 is greater than that of the firstadhesive layer 51. The height difference between thefirst display panel 21 and thesecond display panel 22 is filled by increasing the thickness of the secondadhesive layer 52, so that the surface of the whole splicedscreen 1000 is flat.

Specifically, thefirst display module 201 further includes a first polarizer 31 and afirst touch layer 41 located on one side of thefirst display panel 21 away from themotherboard 100, thesecond display module 202 further includes asecond polarizer 32 and asecond touch layer 42 located on one side of thesecond display panel 22 away from themotherboard 100, thefirst touch layer 41 is attached to thecover plate 300 through thefirst bonding layer 51, and thesecond touch layer 42 is attached to thecover plate 300 through thesecond bonding layer 52. Optionally, the material of the firstadhesive layer 51 and the secondadhesive layer 52 includes transparent optical glue or the like, such as OCA, OCR or the like.

Further, the first polarizer 31 is flush with the outer boundary of the firstedge routing region 211 at the side close to thesecond polarizer 32; one side of thesecond polarizer 32 close to the first polarizer 31 is in contact with the first polarizer 31 to avoid a gap or interference between the first polarizer 31 and thesecond polarizer 32 due to the partial overlapping of thefirst display panel 21 and thesecond display panel 22 in space.

Correspondingly, thefirst touch layer 41 is flush with the outer boundary of the firstedge routing area 211 at a side close to thesecond touch layer 42; a side of thesecond touch layer 42 close to thefirst touch layer 41 is in contact with thefirst touch layer 41 to avoid a gap or interference between thefirst touch layer 41 and thesecond touch layer 42 due to the spatial overlapping of thefirst display panel 21 and thesecond display panel 22.

It should be noted that, in the present application, the outer boundary of the edge routing area refers to a side of the edge routing area away from the display area, for example, the outer boundary of the firstedge routing area 211 refers to a boundary of the firstedge routing area 211 away from the display area AA of thefirst display panel 21.

In an embodiment, please refer to fig. 1 to 5, fig. 3 is another schematic top view structure diagram of a tiled screen provided in an embodiment of the present application, fig. 4 is a schematic cross-sectional structure diagram of the tiled screen in fig. 3, and fig. 5 is a schematic detail structure diagram of a second edge routing area in fig. 4. Unlike the above embodiments, in thetiled display 1001 of this embodiment, an orthogonal projection of the firstedge routing area 211 on themotherboard 100 coincides with an orthogonal projection of the secondedge routing area 221 on themotherboard 100, and the firstedge routing area 211 is electrically connected to themotherboard 100 through the secondedge routing area 221.

Specifically, an orthographic projection of the firstedge routing area 211 on themotherboard 100 coincides with an orthographic projection of the secondedge routing area 221 on themotherboard 100, so that the first frame area BD1 of thefirst display module 201 coincides with the first frame area BD1 of thesecond display module 202, so as to further reduce a frame area at a spliced position after splicing thefirst display module 201 and thesecond display module 202, and thus reduce a splicing seam at the spliced position.

Since the firstedge routing region 211 completely overlaps the secondedge routing region 221, the firstedge routing region 211 has no extra space for electrical connection with themotherboard 100, and thus the firstedge routing region 211 is electrically connected with themotherboard 100 through the secondedge routing region 221. Specifically, the firstedge routing region 211 is electrically connected to the secondedge routing region 221 through a thirdconductive layer 63, and the secondedge routing region 221 is electrically connected to thecontrol layer 10 of themotherboard 100 through a fourthconductive layer 64. The material of each of the thirdconductive layer 63 and the fourthconductive layer 64 may be the same as that of the firstconductive layer 61.

Specifically, the secondedge routing area 221 is provided with afirst routing 223 and asecond routing 224 that are insulated from each other, the firstedge routing area 211 is electrically connected to themotherboard 100 through thefirst routing 223, and the secondedge routing area 221 is electrically connected to themotherboard 100 through thesecond routing 224. Specifically, thefirst traces 223 and thesecond traces 224 are alternately arranged in the secondedge trace area 221, and thesecond traces 224 further extend from the secondedge trace area 221 to the display area AA of thesecond display panel 22 to be connected to the driving circuit in the display area AA of thesecond display panel 22.

The firstedge routing area 211 is electrically connected to thefirst routing 223 in the secondedge routing area 221 through the thirdconductive layer 63, and thefirst routing 223 is electrically connected to thecontrol layer 10 of themotherboard 100 through the fourthconductive layer 64, so as to electrically connect the firstedge routing area 211 to themotherboard 100, and further electrically connect thefirst display panel 21 to themotherboard 100. Thesecond trace 224 is electrically connected to thecontrol layer 10 of themotherboard 100 through the fourthconductive layer 64, so as to electrically connect the secondedge trace area 221 to themotherboard 100, and further electrically connect thesecond display panel 22 to themotherboard 100.

It should be noted that, although thefirst trace 223 and thesecond trace 224 are both electrically connected to thecontrol layer 10 through the fourthconductive layer 64, there is no electrical connection relationship between thefirst trace 223 and thesecond trace 224. The fourthconductive layer 64 may include a plurality of conductive portions insulated from each other, and thefirst trace 223 and thesecond trace 224 are electrically connected to different conductive portions, respectively, or the fourthconductive layer 64 is made of an anisotropic conductive film and is only electrically connected in a direction perpendicular to themotherboard 100. For other descriptions, please refer to the above embodiments, which are not repeated herein.

In an embodiment, please refer to fig. 1 to 6, and fig. 6 is a schematic detail structure diagram of the second edge routing area in fig. 4. Unlike the above embodiments, the secondedge routing region 221 is provided with a throughhole 225 penetrating through thesecond display panel 22, and the firstedge routing region 211 is electrically connected to themotherboard 100 through the throughhole 225. For other descriptions, please refer to the above embodiments, which are not repeated herein.

In an embodiment, please refer to fig. 1 to 7, and fig. 7 is a schematic cross-sectional structure diagram of a splicing screen provided in an embodiment of the present application. Different from the above embodiment, the splicedscreen 1002 in this embodiment takes three display modules as an example, thefirst display module 201 is spliced with thesecond display module 202, and thesecond display module 202 is further spliced with thethird display module 203.

Specifically, thethird display module 203 includes athird display panel 23 attached to themotherboard 100 and electrically connected to themotherboard 100, athird polarizer 33 and athird touch layer 43 disposed on one side of themotherboard 100 away from thethird display panel 23, and a heighteninglayer 71 disposed between thethird display panel 23 and themotherboard 100, wherein thethird touch layer 43 is attached to thecover plate 300 through athird bonding layer 53, and thethird display panel 23 is attached to themotherboard 100 through the heighteninglayer 71. Thethird display module 203 and thefirst display module 201 are axisymmetric with respect to thesecond display module 202, so that the frames of thesecond display module 202 and thethird display module 203 at the splicing position are overlapped to reduce the splicing seam at the splicing position. For other descriptions, please refer to the above embodiments, which are not repeated herein.

According to the above embodiments:

the application provides a concatenation screen is pieced together, connect the screen to include the mother board and bind a plurality of display module assembly on the mother board, it is a plurality of display module assembly splices each other, every display module assembly including attached on the mother board and with the display panel that the mother board electricity is connected, display panel includes the display area and is located the outlying marginal wiring district of display area, adjacent two the concatenation department of display module assembly, adjacent two display panel's at least part the marginal wiring district is in orthographic projection coincidence on the mother board to reduce the non-display area of the concatenation department of concatenation screen, and then reduce the concatenation seam of concatenation screen, solved the problem that there is great concatenation seam in the concatenation department of current concatenation screen.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above embodiments of the present application are described in detail, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A tiled screen, comprising:

a motherboard;

the display module comprises a plurality of display modules, a plurality of display modules and a plurality of display modules, wherein the display modules are bound on the mother board and are spliced with one another, each display module comprises a display panel which is attached to the mother board and is electrically connected with the mother board, and each display panel comprises a display area and an edge wiring area which is positioned on the periphery of the display area;

and at the splicing position of two adjacent display modules, orthographic projections of at least part of the edge wiring areas of the two adjacent display panels on the motherboard are superposed.

2. The spliced screen of claim 1, wherein two adjacent display modules are a first display module and a second display module, the first display module comprises a first display panel, the second display module comprises a second display panel, the first display panel comprises a first edge routing area and the second display panel comprises a second edge routing area at the splicing position, and the first edge routing area is located on one side, away from the mother board, of the second edge routing area.

3. The tiled screen of claim 2, wherein the first edge routing area comprises a first sub-area and a second sub-area located on a side of the first sub-area away from the display area of the first display panel, the second edge routing area comprises a third sub-area and a fourth sub-area located on a side of the third sub-area away from the display area of the second display panel, an orthographic projection of the second sub-area on the motherboard coincides with an orthographic projection of the fourth sub-area on the motherboard, the first sub-area is electrically connected to the motherboard, and the third sub-area is electrically connected to the motherboard.

4. The tiled screen of claim 2 wherein an orthographic projection of the first edge routing region on the motherboard is coincident with an orthographic projection of the second edge routing region on the motherboard, the first edge routing region being electrically connected to the motherboard through the second edge routing region.

5. The spliced screen of claim 4, wherein the second edge routing area is provided with a first trace and a second trace that are insulated from each other, the first edge routing area is electrically connected with the motherboard through the first trace, and the second edge routing area is electrically connected with the motherboard through the second trace.

6. The spliced screen of claim 4, wherein the second edge routing region is provided with a through hole penetrating through the second display panel, and the first edge routing region is electrically connected with the motherboard through the through hole.

7. The spliced screen of any one of claims 2 to 6, further comprising a cover plate positioned on one side of the plurality of display modules away from the motherboard, wherein the first display module is attached to the cover plate through a first bonding layer, the second display module is attached to the cover plate through a second bonding layer, and the thickness of the second bonding layer is greater than that of the first bonding layer.

8. The spliced screen of claim 7, wherein the first display module further comprises a first polarizer and a first touch layer on one side of the first display panel away from the mother board, the second display module further comprises a second polarizer and a second touch layer on one side of the second display panel away from the mother board, the first touch layer is attached to the cover plate through the first bonding layer, and the second touch layer is attached to the cover plate through the second bonding layer.

9. The spliced screen of claim 8, wherein the first polarizer is flush with the outer boundary of the first edge routing region on a side adjacent to the second polarizer; one side of the second polaroid, which is close to the first polaroid, is in contact with the first polaroid.

10. The spliced screen of any one of claims 2 to 6, wherein the first display module further comprises a heightening layer positioned on one side of the first display panel close to the mother board, the heightening layer is connected to the first display panel and the mother board, a first space avoiding area is arranged on one side of the heightening layer corresponding to the first edge routing area, and the second edge routing area is positioned in the first space avoiding area.

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