Splicing display module and electronic equipment

Abstract

The invention discloses a tiled display module and electronic equipment. The tiled display module comprises a first display panel and a second display panel, the first display panel comprises a first substrate and a first side line, and the first substrate is provided with a first surface and a first side surface; the first surface is provided with a first bonding pad, and the first side line is electrically connected with the first bonding pad and extends along the first surface to cover at least part of the first side surface; the second display panel comprises a second substrate and a second side wire, and the second substrate is provided with a second surface and a second side surface; the second surface is provided with a second bonding pad and a first driving chip electrically connected with the second bonding pad, and the second side wiring is electrically connected with the second bonding pad and extends along the second surface to cover at least part of the second side surface; the first display panel and the second display panel are spliced, and the first side wires on the first side face make contact with and are electrically connected with the second side wires on the second side face. The wiring reliability of the side edge of the tiled display module can be improved, and the product yield is increased.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a spliced ​​display module and an electronic device. Background Art

[0002] With the demand for large-screen displays, various splicing display modules have emerged. At present, a splicing display module can be spliced ​​with multiple sub-display panels to form a large-screen display.

[0003] Micro-LED is widely used in the field of display technology due to its advantages of high brightness, good luminous efficiency and low power consumption. At present, side wiring is set on the side of the Micro-LED display panel to reduce the border width of each sub-display panel, thereby reducing the splicing seam between two adjacent sub-display panels.

[0004] However, the reliability problem of the side wiring of the existing splicing display module needs to be solved urgently. Summary of the invention

[0005] The main technical problem solved by the present application is to provide a spliced ​​display module and an electronic device, which improves the reliability of the side wiring of the spliced ​​display module, improves the product yield, and reduces the width of the splicing seam.

[0006] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a spliced ​​display module, comprising at least a first display panel and a second display panel; the first display panel comprises: a first substrate and a first side routing, the first substrate is provided with a first surface and a first side surface; the first surface is provided with a first solder pad, the first side routing is electrically connected to the first solder pad, and extends along the first surface to cover at least a portion of the first side surface; the second display panel comprises: a second substrate and a second side routing, the second substrate is provided with a second surface and a second side surface; the second surface is provided with a second solder pad and a first driving chip electrically connected to the second solder pad, the second side routing is electrically connected to the second solder pad, and extends along the second surface to cover at least a portion of the second side surface; wherein, the first display panel and the second display panel are spliced ​​together so that the first surface and the second surface are arranged opposite to each other, and the first side routing on the first side surface is in contact with the second side routing on the second side surface and is electrically connected.

[0007] Preferably, the first substrate further includes a third surface disposed opposite to the first surface, and the first side line extends to the junction of the third surface and the first side surface; the second substrate further includes a fourth surface disposed opposite to the second surface, and the second side line extends to the junction of the fourth surface and the second side surface.

[0008] Preferably, the first side surface includes a first bevel, the dihedral angle formed by the first bevel and the first surface is an obtuse angle, and at least part of the first side edge routing is formed on the first bevel; the second side surface includes a second bevel, the dihedral angle formed by the second bevel and the second surface is an obtuse angle, and at least part of the second side edge routing is formed on the second bevel; wherein, when the first display panel and the second display panel are spliced ​​together, the first side edge routing located on the first bevel is in contact with the second side edge routing located on the second bevel and is electrically connected.

[0009] Preferably, the first inclined surface is arranged in parallel with the second inclined surface.

[0010] Preferably, the first inclined surface and the second inclined surface have the same area.

[0011] Preferably, the first substrate further includes a third surface disposed opposite to the first surface, and the first inclined surface connects the first surface and the third surface; the second substrate further includes a fourth surface disposed opposite to the second surface, and the second inclined surface connects the second surface and the fourth surface.

[0012] Preferably, the first side surface includes a first curved surface, at least a portion of the first side edge routing is formed on the first curved surface, and the dihedral angle between a cut surface at the junction of the first curved surface and the first side surface and the first side surface is an obtuse angle; the second side surface includes a second curved surface, at least a portion of the second side edge routing is formed on the second curved surface, and the dihedral angle between a cut surface at the junction of the second curved surface and the second side surface and the second side surface is an obtuse angle.

[0013] Preferably, the first curved surface and the second curved surface are matched in concave and convex manner.

[0014] Preferably, the first substrate further includes a third surface disposed opposite to the first surface, and the first curved surface connects the first surface and the third surface; the second substrate further includes a fourth surface disposed opposite to the second surface, and the second curved surface connects the second surface and the fourth surface.

[0015] Preferably, the first substrate is further provided with a third surface opposite to the first surface and a third side surface opposite to the first side surface, the third surface is provided with a third solder pad and a third driving chip electrically connected to the third solder pad, the first display panel also includes a third side routing, the third side routing is electrically connected to the third solder pad and extends along the third surface to cover at least a portion of the third side surface; the second substrate is further provided with a fourth surface opposite to the second surface and a fourth side surface opposite to the second side surface, the fourth surface is provided with a fourth solder pad, the second surface is further provided with a fifth solder pad and a second driving chip electrically connected to the fifth solder pad, the second display panel also includes a fourth side routing, which is arranged on the fourth side surface, and both ends of the fourth side routing are electrically connected to the fourth solder pad and the fifth solder pad, respectively.

[0016] Preferably, the second display panel is the outermost display panel in the spliced ​​display module, and the first display panel is the innermost display panel in the spliced ​​display module.

[0017] Preferably, the fourth side surface is arranged perpendicular to the second surface.

[0018] Preferably, the second substrate is also provided with a fourth surface opposite to the second surface and a fourth side surface opposite to the second side surface, and a fourth solder pad is provided on the fourth surface. The second display panel also includes: a fourth side routing, which is electrically connected to the fourth solder pad and extends along the fourth surface to cover at least a portion of the fourth side surface.

[0019] Preferably, the first display panel is the outermost display panel in the spliced ​​display module, and the second display panel is the innermost display panel in the spliced ​​display module.

[0020] Preferably, the first substrate is provided with a third surface opposite to the first surface and a third side surface opposite to the first side surface, the third surface is provided with a third solder pad and a third driving chip electrically connected to the third solder pad, the first display panel also includes a third side routing, the third side routing is electrically connected to the third solder pad, and extends along the third surface to cover at least a portion of the third side surface; and, the second substrate is also provided with a fourth surface opposite to the second surface and a fourth side surface opposite to the second side surface, a fourth solder pad is provided on the fourth surface, and the second display panel also includes: a fourth side routing, the fourth side routing is electrically connected to the fourth solder pad, and extends along the fourth surface to cover at least a portion of the fourth side surface.

[0021] Preferably, the first display panel and the second display panel have the same structure.

[0022] Preferably, the first display panel and the second display panel are both inner display panels in the spliced ​​display module.

[0023] In order to solve the above technical problems, another technical solution adopted by the present application is: to provide an electronic device, comprising at least one spliced ​​display module and a light-emitting device in any one embodiment.

[0024] The beneficial effects of the present application are as follows: Different from the prior art, the spliced ​​display module provided by the present application is provided with a first side routing and a second side routing on the two spliced ​​surfaces of the two spliced ​​display panels, respectively, and the two side routings are electrically connected by overlapping, so that the first driving chip bonded to the second surface of the second display panel can drive the first display panel spliced ​​with the second display panel through the overlapping second side routing and the first side routing. The present application uses staggered driving to make the first side routing only need to cover the first side and first surface of the first substrate, and the second side routing only need to cover the second side and second surface of the second substrate. Both side routings have only one corner, which reduces the probability of the side routing falling off or breaking at the corner, thereby improving the reliability of the side routing; at the same time, because the two display panels are electrically connected by overlapping the side routings, there is no need to set a protective layer on the side of the display panel for packaging, thereby reducing the width of the splicing seam and achieving seamless splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an implementation scheme of a spliced ​​display module of the present application;

[0026] Figure 2 It is a structural schematic diagram of another embodiment of the spliced ​​display module of the present application;

[0027] Figure 3 It is a structural schematic diagram of another embodiment of the spliced ​​display module of the present application;

[0028] Figure 4 It is a structural schematic diagram of another embodiment of the spliced ​​display module of the present application;

[0029] Figure 5 It is a structural schematic diagram of another embodiment of the spliced ​​display module of the present application;

[0030] Figure 6 It is a structural schematic diagram of another embodiment of the spliced ​​display module of the present application;

[0031] Figure 7 It is a structural schematic diagram of another embodiment of the spliced ​​display module of the present application;

[0032] Figure 8 It is a schematic structural diagram of an embodiment of an electronic device of the present application. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and effect of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] In the related art, the spliced ​​display panel is provided with a light-emitting element on the front, a driver chip on the back, and a side wiring on the side, and the two ends of the side wiring extend to the front and back respectively so that the driver chip on the back can drive the light-emitting element on the front to emit light. However, in the related art, the side wiring has corners at the junction of the front and side, and at the junction of the back and side. The reliability of the side wiring at the corner is low, and the adhesion of the side wiring is insufficient, which easily causes the side wiring to fall off or break.

[0035] In view of this, see Figure 1 The present application provides a spliced ​​display module to solve the above technical problems. The spliced ​​display module 10 at least includes a first display panel 1 and a second display panel 2.

[0036] The first display panel 1 includes: a first substrate 11 and a first side wiring 12, the first substrate 11 is provided with a first surface 11a and a first side surface 11b; the first surface 11a is provided with a first solder pad 13 and a light-emitting device (not shown), the first side wiring 12 is electrically connected to the first solder pad 13, and extends along the first surface 11a to cover at least a portion of the first side surface 11b.

[0037] The second display panel 2 includes: a second substrate 21 and a second side wiring 22, the second substrate 21 is provided with a second surface 21a and a second side surface 21b; the second surface 21a is provided with a second solder pad 23 and a first driving chip 3 electrically connected to the second solder pad 23, the second side wiring 22 is electrically connected to the second solder pad 23, and extends along the second surface 21a to cover at least a portion of the second side surface 21b.

[0038] The first display panel 1 and the second display panel 2 are spliced ​​together so that the first surface 11a and the second surface 21a are arranged opposite to each other, the first side surface 11b and the second side surface 21b are arranged opposite to each other, and the first side trace 12 on the first side surface 11b and the second side trace 22 on the second side surface 21b are in contact and electrically connected.

[0039] The spliced ​​display module 10 provided in the present application is respectively provided with a first side wiring 12 and a second side wiring 22 on the first side 11b and the second side 21b which are arranged opposite to each other in the spliced ​​first display panel 1 and the second display panel 2. After the two display panels are spliced, the first side wiring 12 and the second side wiring 22 are electrically connected by overlapping, so that the first driving chip 3 bonded to the second surface 21a of the second display panel 2 can drive the light-emitting device on the first display panel 1 spliced ​​with the second display panel 2 to emit light through the overlapping second side wiring 22 and the first side wiring 12. The present application uses staggered driving to ensure that the first side routing 12 only needs to cover the first side 11b and the first surface 11a of the first substrate 11, and the second side routing 22 only needs to cover the second side 21b and the second surface 21a of the second substrate 21. The first side routing 12 has a corner only at the junction of the first side 11b and the first surface 11a, and the second side routing 22 has a corner only at the junction of the second side 21b and the second surface 21a. Both side routings have only one corner, which reduces the probability of the side routing falling off or breaking at the corner, thereby improving the reliability of the side routing. At the same time, since the two display panels are electrically connected through the overlapping of the side routings, there is no need to set a protective layer on the side of the display panel. It is only necessary to set a protective layer for the first side routing 12 located on the first surface 11a and the second side routing 22 located on the second surface 21a, thereby reducing the width of the splicing seam and achieving seamless splicing.

[0040] Optionally, continue to Figure 1 , the first substrate 11 also includes a third surface 11c disposed opposite to the first surface 11a, and the first side wiring 12 extends to the junction of the third surface 11c and the first side surface 11b; the second substrate 21 also includes a fourth surface 21c disposed opposite to the second surface 21a, and the fourth surface is provided with a light-emitting device, and the second side wiring 22 extends to the junction of the fourth surface 21c and the second side surface 21b. The above arrangement ensures that the first side wiring 12 and the second side wiring 22 have sufficient contact area to ensure electrical connection between the two. In other embodiments, the end of the first side wiring 12 can only extend to cover part of the first side surface 11b, and the end of the second side wiring 22 can only extend to cover part of the second side surface 21b, as long as it is ensured that the first side wiring 12 and the second side wiring 22 overlap when the first display panel 1 and the second display panel 2 are spliced, and overlap can be achieved.

[0041] In this embodiment, the first side surface 11 b is perpendicular to the first surface 11 a , and the second side surface 21 b is perpendicular to the second surface 21 a , that is, the corners of the first side trace 12 and the second side trace 22 are right angles.

[0042] In order to further reduce the possibility of the first side wiring 12 and the second side wiring 22 falling off and breaking at the corners, in some embodiments, chamfers may be provided at the corners.

[0043] In other embodiments, see Figure 2 The first side surface 11b includes a first inclined surface 111, the dihedral angle θ1 formed by the first inclined surface 111 and the first surface 11a is an obtuse angle, and the first side edge routing 12 is at least formed on the first inclined surface 111; the second side surface 21b includes a second inclined surface 211, the dihedral angle θ2 formed by the second inclined surface 211 and the second surface 21a is an obtuse angle, and the second side edge routing 22 is at least formed on the second inclined surface 211, wherein, when the first display panel 1 and the second display panel 2 are spliced ​​together, the first side edge routing 12 located on the first inclined surface 111 is in contact and electrically connected with the second side edge routing 22 located on the second inclined surface 211, and optionally, the first inclined surface 111 and the second inclined surface 211 are arranged in parallel; optionally, the first inclined surface 111 and the second inclined surface 211 have the same area. Further, the first inclined surface 111 connects the first surface 11a and the third surface 11c; the second inclined surface 211 connects the second surface 21a and the fourth surface 21c.

[0044] Specifically, the first side surface 11b and the second side surface 21b may include one surface or multiple surfaces. In some embodiments, when the first side surface 11b and the second side surface 21b include only one surface, the first side surface 11b and the second side surface 21b are both inclined surfaces, and the angle between the first side surface 11b and the first surface 11a and the angle between the second side surface 21b and the second surface 21a are both obtuse angles, further reducing the probability of breakage and falling off at the corners of the first side edge trace 12 on the first side surface 11b and the first surface 11a and the second side edge trace 22 on the second side surface 21b and the second surface 21a. In other embodiments, when the first side surface 11b and the second side surface 21b include multiple surfaces, the first inclined surface 111 is an inclined surface connected to the first surface 11a, and the second inclined surface 211 is an inclined surface connected to the second surface 21a. The angle between the first inclined surface 111 and the first surface 11a and the angle between the second inclined surface 211 and the second surface 21a are both obtuse angles, which further reduces the probability of breakage and falling off at the corners of the first side edge routing 12 on the first inclined surface 111 and the first surface 11a and the second side edge routing 22 on the second inclined surface 211 and the second surface 21a.

[0045] In other embodiments, see Figure 3The first side surface 11b includes a first curved surface 112, the first side edge routing 12 covers at least a portion of the first curved surface 112, and the dihedral angle θ3 between the tangent plane at the junction of the first curved surface 112 and the first surface 11a and the first surface 11a is an obtuse angle; the second side surface 21b includes a second curved surface 212, the second side edge routing 22 covers at least a portion of the second curved surface 212, the first curved surface 112 and the second curved surface 212 are concave-convex matching, and the dihedral angle θ4 between the tangent plane at the junction of the second curved surface 212 and the second surface 21a and the second surface 21a is an obtuse angle. In this embodiment, the first curved surface 112 is a concave curved surface, and the second curved surface 212 is a convex curved surface matching the first curved surface 112; the first curved surface 112 can also be a convex curved surface, and the second curved surface 212 is a matching concave curved surface, which can increase the contact area between the first side edge routing 12 and the second side edge routing 22, and improve the reliability of the corners of the side edge routing. Furthermore, the first curved surface 112 connects the first surface 11a and the third surface 11c; and the second curved surface 212 connects the second surface 21a and the fourth surface 21c.

[0046] Optionally, in a spliced ​​display module 10, at least two display panels are included. Figure 1 , Figure 2 and Figure 3 The second substrate 21 is further provided with a fourth side surface 21d disposed opposite to the second side surface 21b, a fourth pad 26 is disposed on the fourth surface 21c, a fifth pad 25 and a second driver chip 4 electrically connected to the fifth pad 25 are further disposed on the second surface 21a, and the second display panel 2 further includes a fourth side trace 24 disposed on the fourth side surface 21d, and one end of the fourth side trace 24 extends to the second surface 21a and is electrically connected to the fifth pad 25, and the other end extends to the fourth surface 21c and is electrically connected to the fourth pad 26. The second driver chip 4 is used to drive the light-emitting device on the fourth surface 21c of the second display panel 2 to display. Optionally, the fourth side surface 21d is disposed perpendicular to the second surface 21a.

[0047] In a spliced ​​display module 10, at least two display panels are included. In some application scenarios, Figure 1 , Figure 2 and Figure 3 As shown, only two display panels are included. At this time, the two display panels are located at the edge of the spliced ​​display module 10; in other application scenarios, Figure 4 As shown, four display panels A, B, C, and D are sequentially arranged and spliced, wherein the A and D display panels are located at the edge of the spliced ​​display module 10, and the B and C display panels are located at the edge of the spliced ​​display module 10. In other application scenarios, other numbers of display panels such as three or more than four may also be sequentially arranged and spliced.

[0048] When the first display panel 1 and the second display panel 2 are Figure 4 When the A display panel and the B display panel are Figure 5 , a fourth pad 26 is also provided on the fourth surface 21c, the second display panel 2 also includes a fourth side trace 24, the fourth side trace 24 is electrically connected to the fourth pad 26, and the fourth side trace 24 is provided on the fourth surface 21c and extends to cover at least a portion of the fourth side surface 21d. Specifically, in this embodiment, the first display panel 1 is the outermost display panel in the spliced ​​display module 10, and the second display panel 2 is the inner display panel in the spliced ​​display module 10. The fourth side trace 24 is used to overlap with the side trace of the adjacent C display panel, so that the driving chip of the C display panel can drive the light-emitting device on the fourth surface 21c of the B display panel to emit light for display.

[0049] When the first display panel 1 and the second display panel 2 are Figure 4 When the B display panel and C display panel are Figure 6 , a third pad 15 and a third driving chip 5 electrically connected to the third pad 15 are also provided on the third surface 11c, the first display panel 1 also includes a third side trace 14, electrically connected to the third pad 5, arranged on the third surface 11c and extending to cover at least a portion of the third side surface 11d; and a fourth pad 26 is also provided on the fourth surface 21c, the second display panel 2 also includes: a fourth side trace 24, the fourth side trace 24 is electrically connected to the fourth pad 26, the fourth side trace 24 is arranged on the fourth surface 21c and extends to cover at least a portion of the fourth side surface 21d. Specifically, in this embodiment, the first display panel 1 and the second display panel 2 are both Figure 4 The display panels on the inner side of the middle spliced ​​display module 10, that is, the side of the first display panel 1 away from the second display panel 2, and the side of the second display panel 2 away from the first display panel 1, are also connected to other display panels, and the first display panel 1 has the same structure as the second display panel 2. The third side wiring 14 is used to overlap with the side wiring of the adjacent A display panel, so that the third driver chip 5 on the B display panel can drive the A display panel to display, and the fourth side wiring 24 is used to overlap with the side wiring of the adjacent C display panel, so that the driver chip of the C display panel can drive the light-emitting device on the first surface 11a of the B display panel to emit light and display.

[0050] When the first display panel 1 and the second display panel 2 are Figure 4 When the C display panel and D display panel are Figure 7, a third pad 15 and a third driver chip 5 electrically connected to the third pad 15 are also provided on the third surface 11c, the first display panel 1 also includes: a third side trace 14, electrically connected to the third pad 5, arranged on the third surface 11c and extending to cover at least part of the third side surface 11d; and a fourth pad 26 is provided on the fourth surface 21c, the second surface 21a also includes a fifth pad 25 and a second driver chip 4 electrically connected to the fifth pad 25, the second display panel 2 also includes: a fourth side trace 24, arranged on the fourth side surface 21d, and one end of the fourth side trace 24 extends to the second surface 21a and is electrically connected to the fifth pad 25, and the other end extends to the fourth surface 21c and is electrically connected to the fourth pad 26. The first driver chip 3 is used to drive the light-emitting device on the first surface 11a of the first display panel 1 to emit light and display, the second driver chip 4 is used to drive the light-emitting device on the third surface 21c of the second display panel 2 to emit light and display, and the third driver chip 5 is used to drive the display panel on the side of the first display panel 1 away from the second display panel 2 to display.

[0051] It should be noted that, for a spliced ​​display module 10, only the side routing at the edge of a display panel has two corners, and the display panel is driven by a driver chip bonded to a display surface away from the display panel; the side routings on the remaining display panels have only one corner, and each display panel is driven by a driver chip bonded to an adjacent display panel.

[0052] See also Figure 8 The present application also provides an electronic device 100, comprising at least one spliced ​​display module 10 of any of the above embodiments. In this embodiment, a plurality of spliced ​​display modules 10 are spliced ​​along the Y direction, and each spliced ​​display module 10 is spliced ​​along the X direction to form a large spliced ​​display device.

[0053] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A splicing display module, It is characterized in that At least comprising a first display panel and a second display panel; The first display panel includes: a first substrate and a first side wiring, the first substrate is provided with a first surface and a first side surface; the first surface is provided with a first pad, the first side wiring is electrically connected to the first pad and extends along the first surface to cover at least a portion of the first side surface; The second display panel includes: a second substrate and a second side wiring, the second substrate is provided with a second surface and a second side surface; the second surface is provided with a second pad and a first driving chip electrically connected to the second pad, the second side wiring is electrically connected to the second pad and extends along the second surface to cover at least a portion of the second side surface; The first display panel and the second display panel are spliced ​​together so that the first surface and the second surface are arranged opposite to each other, and the first side wiring on the first side surface is in contact with the second side wiring on the second side surface and is electrically connected.

2. The spliced ​​display module according to claim 1, It is characterized in that The first substrate further includes a third surface disposed opposite to the first surface, and the first side edge trace extends to the junction of the third surface and the first side surface; The second substrate further includes a fourth surface disposed opposite to the second surface, and the second side edge trace extends to a junction between the fourth surface and the second side surface.

3. The spliced ​​display module according to claim 1, It is characterized in that The first side surface includes a first inclined surface, the dihedral angle formed by the first inclined surface and the first surface is an obtuse angle, and at least part of the first side edge routing is formed on the first inclined surface; The second side surface includes a second inclined surface, the dihedral angle formed by the second inclined surface and the second surface is an obtuse angle, and at least part of the second side edge routing is formed on the second inclined surface; Wherein, when the first display panel and the second display panel are spliced ​​together, the first side wiring located on the first inclined surface is in contact with the second side wiring located on the second inclined surface and is electrically connected; Preferably, the first inclined surface is arranged in parallel with the second inclined surface; Preferably, the first inclined surface and the second inclined surface have the same area.

4. The spliced ​​display module according to claim 3, It is characterized in that The first substrate further includes a third surface disposed opposite to the first surface, and the first inclined surface connects the first surface and the third surface; The second substrate further includes a fourth surface disposed opposite to the second surface, and the second inclined surface connects the second surface and the fourth surface.

5. The spliced ​​display module according to claim 1, It is characterized in that The first side surface includes a first curved surface, at least part of the first side edge routing is formed on the first curved surface, and a dihedral angle between a tangent surface at a junction of the first curved surface and the first side surface and the first side surface is an obtuse angle; The second side surface includes a second curved surface, at least part of the second side edge routing is formed on the second curved surface, and a dihedral angle between a tangent surface at a junction of the second curved surface and the second side surface and the second side surface is an obtuse angle; Preferably, the first curved surface and the second curved surface are matched in concave and convex manner.

6. The spliced ​​display module according to claim 5, It is characterized in that The first substrate further includes a third surface disposed opposite to the first surface, and the first curved surface connects the first surface and the third surface; The second substrate further includes a fourth surface disposed opposite to the second surface, and the second curved surface connects the second surface and the fourth surface.

7. The spliced ​​display module according to claim 1, It is characterized in that The first substrate further comprises a third surface opposite to the first surface and a third side surface opposite to the first side surface, the third surface comprises a third pad and a third driving chip electrically connected to the third pad, the first display panel further comprises a third side wiring, the third side wiring is electrically connected to the third pad and extends along the third surface to cover at least a portion of the third side surface; The second substrate is further provided with a fourth surface disposed opposite to the second surface and a fourth side surface disposed opposite to the second side surface, a fourth pad is disposed on the fourth surface, a fifth pad and a second driving chip electrically connected to the fifth pad are further disposed on the second surface, and the second display panel further includes a fourth side wiring, which is disposed on the fourth side surface, and two ends of the fourth side wiring are electrically connected to the fourth pad and the fifth pad respectively; Preferably, the second display panel is the outermost display panel in the spliced ​​display module, and the first display panel is the inner display panel in the spliced ​​display module; Preferably, the fourth side surface is arranged perpendicular to the second surface.

8. The spliced ​​display module according to claim 1, It is characterized in that The second substrate further comprises a fourth surface opposite to the second surface and a fourth side surface opposite to the second side surface, and a fourth pad is disposed on the fourth surface. The second display panel further comprises: a fourth side edge wiring, the fourth side edge wiring is electrically connected to the fourth pad and extends along the fourth surface to cover at least a portion of the fourth side surface; Preferably, the first display panel is the outermost display panel in the spliced ​​display module, and the second display panel is the innermost display panel in the spliced ​​display module.

9. The spliced ​​display module according to claim 1, It is characterized in that The first substrate is provided with a third surface opposite to the first surface and a third side surface opposite to the first side surface, the third surface is provided with a third pad and a third driving chip electrically connected to the third pad, the first display panel further includes a third side edge wiring, the third side edge wiring is electrically connected to the third pad and extends along the third surface to cover at least a portion of the third side surface; Furthermore, the second substrate further comprises a fourth surface opposite to the second surface and a fourth side surface opposite to the second side surface, the fourth surface is provided with a fourth pad, and the second display panel further comprises: a fourth side edge trace, the fourth side edge trace is electrically connected to the fourth pad and extends along the fourth surface to cover at least a portion of the fourth side surface; Preferably, the first display panel and the second display panel have the same structure; Preferably, the first display panel and the second display panel are both inner display panels in the spliced ​​display module.

10. An electronic device, It is characterized in that The invention comprises at least one splicing display module as claimed in any one of claims 1 to 9.

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