Display module supporting structure, spliced screen module and display screen module

Abstract

The invention relates to a display module supporting structure, a spliced screen module and a display screen module. The display module supporting structure comprises a bottom shell and a first colloid, a mounting groove is formed in the bottom shell and used for containing the lamp panel, the mounting groove comprises a first groove part and a second groove part which communicate with each other, the second groove part is arranged on the side, close to a groove opening of the mounting groove, of the first groove part, and the groove wall of the second groove part is sunken towards the side, away from the center line of the mounting groove, relative to the groove wall of the first groove part; a step wall is formed at the joint of the first groove part and the second groove part; the first colloid is filled in the gap between the groove wall of the second groove part and the lamp bead on the lamp panel so as to cover the step wall. The step wall is covered by the first colloid to partially shield the edge of the bottom shell, so that the exposed area of the bottom shell is reduced under the front view angle, the thickness of the splicing gap of the adjacent screen bodies is reduced under the multi-screen splicing application scene, the splicing black edge is greatly eliminated, and the display effect of the whole screen is improved.

Description

Display module support structure, splicing screen module and display screen module Technical Field

[0001] This application relates to the field of display device technology, and in particular to display module support structures, splicing screen modules and display screen modules. Background Technology

[0002] In the field of protective packaging for outdoor small-pitch LED display modules, there is a technical solution using the GOB process. Because the base shell of the LED display module and the potting material use different colors due to their material properties, there is a significant color difference between them. In multi-screen splicing applications, the gaps between adjacent screens will form visual black borders due to the color contrast between the base shell and the potting material, disrupting the overall continuity and visual aesthetics of the display and reducing the overall display effect. Summary of the Invention

[0003] Therefore, it is necessary to provide a display module support structure to address the technical problem that in multi-screen splicing application scenarios, the splicing gaps between adjacent screens will form visual black borders due to the color contrast between the bottom shell and the potting material, which will disrupt the overall continuity and visual aesthetics of the display and reduce the overall display effect.

[0004] A display module support structure, comprising:

[0005] The bottom shell has a mounting groove for accommodating a lamp panel. The mounting groove includes a first groove portion and a second groove portion that are connected to each other. The second groove portion is located on the side of the first groove portion near the opening of the mounting groove, and the wall of the second groove portion is recessed relative to the wall of the first groove portion, moving away from the centerline of the mounting groove, to form a stepped wall at the junction of the first groove portion and the second groove portion; and...

[0006] A first colloid fills the gap between the groove wall of the second groove and the lamp beads on the lamp board to cover the stepped wall.

[0007] In one embodiment, the area corresponding to the groove wall of the second groove on the outer wall of the bottom shell is flush with the area corresponding to the groove wall of the first groove on the outer wall of the bottom shell in the depth direction of the mounting groove, or protrudes in a direction away from the center line of the mounting groove.

[0008] In one embodiment, the wall thickness of the second groove is 0.05 mm to 0.15 mm.

[0009] In one embodiment, the wall size of the second groove portion is 0.2 mm to 0.3 mm along the depth direction of the mounting groove.

[0010] In one embodiment, the display module support structure further includes a second colloid, which is accommodated in the mounting groove and located in the gap between a predetermined area at the bottom edge of the mounting groove and the lamp panel.

[0011] In one embodiment, a groove is provided in a predetermined area on the bottom wall edge of the mounting groove, and the second colloid is accommodated in the groove.

[0012] This application also provides a splicing screen module that can solve at least one of the above-mentioned technical problems.

[0013] A splicing screen module includes the aforementioned display module support structure and a lamp board. The lamp board includes a circuit board and a plurality of lamp beads. The circuit board abuts against the bottom wall of the mounting groove, and the plurality of lamp beads are spaced apart on the side of the circuit board away from the bottom wall of the mounting groove.

[0014] In one embodiment, the gap between any two adjacent LED beads is filled with the first colloid.

[0015] In one embodiment, along the depth direction of the mounting groove, the side of the first colloid away from the circuit board is recessed relative to the side of the LED away from the circuit board.

[0016] This application also provides a display module that can solve at least one of the above-mentioned technical problems.

[0017] A display module includes at least two of the above-mentioned splicing screen modules, with adjacent splicing screen modules spliced ​​together to form a whole.

[0018] Beneficial effects:

[0019] The display module support structure provided in this application includes a bottom shell and a first colloid. The bottom shell has a mounting groove for accommodating a lamp board. The mounting groove includes a first groove and a second groove that are connected to each other. The second groove is located on the side of the first groove near the opening of the mounting groove, and the groove wall of the second groove is recessed relative to the groove wall of the first groove towards the side away from the center line of the mounting groove, so as to form a stepped wall at the junction of the first groove and the second groove. The first colloid fills the gap between the groove wall of the second groove and the lamp beads on the lamp board to cover the stepped wall. The second groove sidewall of this application is recessed away from the center line of the mounting groove relative to the groove wall of the first groove, making the thickness of the groove wall of the second groove less than that of the first groove. The gap between the groove wall of the second groove and the LED bead is filled with a first colloid, which covers the stepped wall and partially obscures the edge of the bottom shell. This reduces the exposed area of ​​the bottom shell from a frontal view, and consequently, in multi-screen splicing applications, reduces the thickness of the splicing seam between adjacent screens, significantly eliminating the black border and improving the overall display effect. Furthermore, the LED board of this application has groove sidewalls around its perimeter, essentially providing a frame around the LED board, protecting its edges and limiting the escape of the first colloid.

[0020] This application also provides a video wall module, including the aforementioned display module support structure, and further including a lamp board. The lamp board includes a circuit board and a plurality of LEDs. The circuit board abuts against the bottom wall of the mounting groove, and the plurality of LEDs are spaced apart on the side of the circuit board facing away from the bottom wall of the mounting groove. This video wall module can achieve at least one of the aforementioned technical effects.

[0021] This application also provides a display module, including the above-mentioned splicing screen module, wherein adjacent splicing screen modules are spliced ​​together to form a whole. This display module can achieve at least one of the above-mentioned technical effects. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the display module support structure and the lamp panel in cooperation according to an embodiment of this application.

[0023] Figure 2 is a cross-sectional view of two adjacent splicing screen modules provided in an embodiment of this application when spliced ​​together.

[0024] Figure 3 is an enlarged view of point A in Figure 2.

[0025] Figure 4 is an exploded view of a splicing screen module provided in an embodiment of this application.

[0026] Icon labels:

[0027] 10-Display module support structure; 100-Bottom shell; 110-Mounting groove; 111-First groove; 112-Second groove; 113-Stepped wall; 120-Groove; 121-First wall; 122-Protrusion; 130-Mounting post; 200-First colloid; 300-Second colloid; 400-Lamp board; 410-Circuit board; 411-Mounting hole; 420-LED bead; 500-Fastener; 20-Splicing screen module. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] Referring to Figures 1, 2, and 3, Figure 1 is a schematic diagram of the display module support structure and the lamp panel in cooperation according to an embodiment of this application. Figure 2 is a cross-sectional view of two adjacent splicing screen modules spliced ​​together according to an embodiment of this application. Figure 3 is an enlarged view of point A in Figure 1. An embodiment of this application provides a display module support structure 10, including a bottom shell 100 and a first colloid 200. The bottom shell 100 has a mounting groove 110 for accommodating a lamp panel 400. The mounting groove 110 includes a first groove portion 111 and a second groove portion 112 that are connected. The second groove portion 112 is located on the side of the first groove portion 111 near the opening of the mounting groove 110, and the groove wall of the second groove portion 112 is recessed relative to the groove wall of the first groove portion 111 towards the side away from the center line of the mounting groove 110, so as to form a stepped wall 113 at the junction of the first groove portion 111 and the second groove portion 112. The first colloid 200 fills the gap between the groove wall of the second groove portion 112 and the lamp beads 420 on the lamp panel 400 to cover the stepped wall 113.

[0035] Specifically, the sidewall of the second groove 112 is recessed relative to the wall of the first groove 111, away from the center line of the mounting groove 110. This makes the thickness of the wall of the second groove 112 less than the thickness of the wall of the first groove 111. The gap between the wall of the second groove 112 and the LED bead 420 is filled with the first colloid 200. The first colloid 200 covers the stepped wall 113, thus partially obscuring the edge of the bottom shell 100. This reduces the exposed area of ​​the bottom shell 100 from the front view. Consequently, in multi-screen splicing applications, the thickness at the splicing seam between adjacent screens is reduced, significantly eliminating the black border between the screens and improving the overall display effect.

[0036] It should be noted that the lamp board 400 includes a circuit board 410 and a plurality of lamp beads 420. The circuit board 410 abuts against the bottom wall of the mounting groove 110, and the plurality of lamp beads 420 are spaced apart on the side of the circuit board 410 away from the substrate.

[0037] It should be noted that the side of the circuit board 410 facing away from the bottom wall of the mounting slot 110 is usually potted with adhesive. Due to the color difference between the material of the bottom shell 100 and the potting material, a black edge will appear on the exposed part of the bottom shell 100 when viewed from the front. When the step wall 113 is covered with the first adhesive 200, the exposed area of ​​the bottom shell 100 is reduced when viewed from the front, making the black edge effect on the front of the product weaker and improving the overall visual uniformity.

[0038] In this application, the lamp board 400 has mounting grooves 110 with sidewalls around its perimeter, which is equivalent to having a frame around the lamp board 400. This protects the edges of the lamp board 400 and also limits the escape of the first adhesive 200. Compared to a frameless design for the lamp board 400, although the thickness at the splicing gap between adjacent screens can be further reduced, the adhesive has a brittle cross-section and uneven edges, and its optical characteristics differ greatly from those of the circuit board 410. This results in noticeable white edges during splicing, disrupting the overall integrity of the image.

[0039] Furthermore, the plane containing the step wall 113 is perpendicular to the depth direction of the mounting groove 110, so that the first colloid 200 is stably attached to the step wall 113.

[0040] Referring to Figures 1, 2 and 3, in one embodiment, in the depth direction of the mounting groove 110, the side of the outer wall of the bottom shell 100 that is away from the groove wall of the second groove 112 is flush with the side of the outer wall of the bottom shell 100 that is away from the groove wall of the first groove 111, or protrudes in a direction away from the center line of the mounting groove 110.

[0041] Specifically, since the side of the outer wall of the bottom shell 100 that faces away from the groove wall of the second groove 112 is flush with the side of the outer wall of the bottom shell 100 that faces away from the groove wall of the first groove 111, or protrudes in a direction away from the center line of the mounting groove 110, in multi-screen splicing applications, it can prevent the formation of splicing gaps due to the recess on the side of the outer wall of the bottom shell 100 that faces away from the groove wall of the second groove 112, thereby improving the reliability of eliminating black edges. Preferably, the side of the outer wall of the bottom shell 100 that faces away from the groove wall of the second groove 112 is flush with the side of the outer wall of the bottom shell 100 that faces away from the groove wall of the first groove 111.

[0042] Referring to Figures 1, 2, and 3, in one embodiment, the wall thickness of the second groove 112 is 0.05 mm to 0.15 mm. Compared to the 0.3 mm thickness of the material on the splicing side of the bottom shell 100 in the prior art, this satisfies the process requirements of injection molding while significantly reducing the thickness at the splicing gap between adjacent screens. Preferably, the wall thickness of the second groove 112 is 0.1 mm.

[0043] Referring to Figures 1, 2 and 3, in one embodiment, the dimension of the groove wall of the second groove 112 along the depth direction of the mounting groove 110 is 0.2 mm to 0.3 mm.

[0044] Specifically, the height of the groove wall of the second groove 112 is 0.2mm to 0.3mm. Because the groove wall of the second groove 112 is thin, if it is too high, its strength will be low, making it prone to fracture relative to the stepped wall 113. If the groove wall of the second groove 112 is too low, the stepped wall 113 cannot be effectively shielded by the first colloid 200, thus reducing the exposed area of ​​the bottom shell 100 on the front. Preferably, the height of the groove wall of the second groove 112 is 0.25mm.

[0045] Referring to Figures 1, 2 and 3, in one embodiment, the display module support structure 10 further includes a second colloid 300, which is accommodated in the mounting groove 110 and located in the gap between the preset area of ​​the bottom wall edge of the mounting groove 110 and the lamp panel 400.

[0046] Specifically, for the vulnerable areas at the edge of the bottom shell 100 that are prone to cracking, localized potting with potting material is used. The potting area is limited to a predetermined area at the bottom wall edge of the mounting groove 110, that is, a predetermined range extending inward from the edge of the bottom shell 100, so that the light panel 400 fits tightly against the edge of the bottom shell 100, forming a waterproof reinforcement layer at the bottom edge. This design abandons the traditional full-area potting solution or no-bottom-potting solution, and only protects the most vulnerable edge areas that are most prone to cracking and water seepage. On the one hand, it avoids the increased module weight and cost caused by full potting; on the other hand, the potting layer provides structural reinforcement to the edge of the bottom shell 100, improving its impact resistance and ensuring that the bottom waterproof effect is not diminished.

[0047] In this embodiment, the second colloid 300 and the first colloid 200 are the same colloid, the only difference being that the first colloid 200 and the second colloid 300 are processed in different steps during the dispensing process.

[0048] Referring to Figures 1, 2, and 3, in one embodiment, a groove 120 is provided in a predetermined area on the bottom edge of the mounting groove 110, and the second colloid 300 is accommodated in the groove 120. That is, by providing the groove 120, a space is formed in the predetermined area on the edge of the bottom shell 100 to limit the position of the second colloid 300, thereby improving the reliability of forming the waterproof reinforcement layer at the bottom edge of the bottom shell 100. The groove 120 is provided circumferentially along the mounting groove 110.

[0049] Referring to Figures 1, 2, and 3, in one embodiment, the groove sidewall of the groove 120 near the edge region of the bottom shell 100 is a first wall 121. The shape of the first wall 121 is adapted to the shape of the outer wall of the bottom shell 100 on the side away from the center line of the mounting groove 110, so that the distance between the first wall 121 and the outer wall of the bottom shell 100 on the side away from the center line of the mounting groove 110 is the same, thereby ensuring strength. Furthermore, the first wall 121 is provided with a protrusion 122, thereby increasing strength.

[0050] Referring to Figures 1, 2 and 3, this application also provides a splicing screen, including the above-mentioned display module support structure 10, and also includes a lamp board 400. The lamp board 400 includes a circuit board 410 and a plurality of lamp beads 420. The circuit board 410 abuts against the bottom wall of the mounting groove 110, and the plurality of lamp beads 420 are spaced apart on the side of the circuit board 410 away from the bottom wall of the mounting groove 110.

[0051] The sidewall of the second groove 112 of this application is recessed relative to the groove wall of the first groove 111, away from the center line of the mounting groove 110. This makes the thickness of the groove wall of the second groove 112 less than the thickness of the groove wall of the first groove 111. The gap between the groove wall of the second groove 112 and the lamp bead 420 is filled with the first colloid 200. The first colloid 200 covers the stepped wall 113, thereby partially obscuring the edge of the bottom shell 100. As a result, the exposed area of ​​the bottom shell 100 of the splicing screen is reduced from the front view. Consequently, in multi-screen splicing application scenarios, the thickness at the splicing gap between adjacent splicing screens is reduced, resulting in a significant elimination of the black border between the splicing screens and improving the overall display effect.

[0052] Referring to Figures 1, 2, and 3, in one embodiment, the gap between any two adjacent LED beads 420 is filled with a first colloid 200, allowing the first colloid 200 to completely cover the pins and pads of the LED bead 420. This forms a frontal waterproof barrier, effectively preventing rainwater and dust from penetrating the module, while also ensuring that the luminous effect of the LED bead 420 is not affected by the first colloid 200. In this application, the first colloid 200 is a high-flow potting material, used for precise potting around the LED bead 420. Optionally, the LED bead 420 is an LED bead 420.

[0053] This application achieves double-sided waterproofing of the module by precisely potting glue around the front LED bead 420 and partially potting glue around the edge of the bottom shell 100. This can resist long-term outdoor rain erosion and solve the industry pain point of water seepage due to cracking at the edge of the bottom shell 100 caused by external impact.

[0054] It should be noted that, for ease of description, only a portion of the LED beads 420 are shown in the accompanying drawings of this application specification. In reality, multiple LED beads 420 are arranged at intervals on the circuit board 410.

[0055] Referring to Figures 1, 2 and 3, in one embodiment, along the depth direction of the mounting groove 110, the side of the first colloid 200 away from the circuit board 410 is recessed relative to the side of the lamp bead 420 away from the circuit board 410.

[0056] Specifically, the LED bead 420 has a transparent light-emitting surface on the side facing away from the circuit board 410. Light generated by the internal light-emitting chip of the LED bead 420 is emitted outward through this transparent surface. However, the potting compound used in this product is colored. If the potting height is flush with the surface of the LED bead 420 facing away from the circuit board 410, the potting compound may cover the light-emitting surface of the LED bead 420, thus blocking the light emission path and negatively impacting the final display effect. Therefore, in this application, the first adhesive 200 is recessed relative to the side of the LED bead 420 facing away from the circuit board 410, preventing the first adhesive 200 from covering the light-emitting surface of the LED bead 420 during potting, thus avoiding the blocking of the light emission path and negative impact on the final display effect. In this embodiment, the first adhesive 200 is black.

[0057] Referring to Figures 1, 2 and 3, in one embodiment, the gap between the sidewall of the first groove 111 and the lamp plate 400 is also filled with the first colloid 200, thereby improving the stability of the connection between the lamp plate 400 and the bottom shell 100 and the waterproof performance.

[0058] The first adhesive 200 filling the space between adjacent LED beads 420 and the first adhesive 200 filling the gap between the sidewall of the mounting groove 110 and the LED beads 420 are applied using the same irrigation process.

[0059] Referring to Figures 1 and 4, Figure 4 is an exploded view of a splicing screen module provided in one embodiment of this application. In one embodiment, the splicing screen further includes fasteners 500. The circuit board 410 has mounting holes 411, and the fasteners 500 pass through the mounting holes 411 and are connected to the base shell 100 to improve the stability of the connection between the light panel 400 and the base shell 100. Multiple fasteners 500 are provided, spaced apart from each other.

[0060] The base shell 100 is provided with a mounting post 130, and the fastener 500 is threadedly connected to the mounting post 130. The mounting post 130 improves strength and enhances the stability of the connection between the base shell 100 and the circuit board 410. Optionally, the fastener 500 is a bolt.

[0061] Referring to Figures 1, 2, and 3, this application also provides a display module, including at least two of the above-mentioned splicing screen modules 20, with adjacent splicing screen modules 20 spliced ​​together to form a whole. The sidewall of the second groove 112 is recessed relative to the wall of the first groove 111, moving away from the center line of the mounting groove 110. This results in the thickness of the wall of the second groove 112 being less than the thickness of the wall of the first groove 111. Furthermore, the gap between the wall of the second groove 112 and the LED bead 420 is filled with a first colloid 200, which covers the stepped wall 113, partially obscuring the edge of the bottom shell 100. This reduces the exposed area of ​​the bottom shell 100 of the splicing screen from a frontal view. Consequently, in multi-screen splicing applications, the thickness at the splicing seam between adjacent splicing screens is reduced, significantly eliminating the black border and improving the display effect of the display module.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display module support structure, characterized in that, The display module support structure includes: a bottom shell, the bottom shell having a mounting groove for accommodating a lamp panel, the mounting groove including a first groove portion and a second groove portion connected to each other, the second groove portion being located on the side of the first groove portion near the opening of the mounting groove, and the groove wall of the second groove portion being recessed relative to the groove wall of the first groove portion away from the center line of the mounting groove, so as to form a stepped wall at the junction of the first groove portion and the second groove portion; and a first colloid, the first colloid filling the gap between the groove wall of the second groove portion and the lamp beads on the lamp panel to cover the stepped wall.

2. The display module support structure according to claim 1, characterized in that, In the depth direction of the mounting groove, the side of the outer wall of the bottom shell that is opposite to the groove wall of the second groove is flush with the side of the outer wall of the bottom shell that is opposite to the groove wall of the first groove, or protrudes in a direction away from the center line of the mounting groove.

3. The display module support structure according to claim 1, characterized in that, The wall thickness of the second groove is 0.05mm to 0.15mm.

4. The display module support structure according to claim 1, characterized in that, Along the depth direction of the mounting groove, the dimension of the groove wall of the second groove is 0.2mm to 0.3mm.

5. The display module support structure according to any one of claims 1-4, characterized in that, The display module support structure also includes a second colloid, which is housed in the mounting groove and located in the gap between the bottom wall edge of the mounting groove and the lamp panel.

6. The display module support structure according to claim 5, characterized in that, The mounting groove has a pre-defined groove on the bottom edge of the groove, and the second colloid is accommodated in the groove.

7. A splicing screen module, characterized in that, The display module support structure according to any one of claims 1-6 further includes a lamp board, the lamp board including a circuit board and a plurality of lamp beads, the circuit board abutting against the bottom wall of the mounting groove, and the plurality of lamp beads being spaced apart on the side of the circuit board away from the bottom wall of the mounting groove.

8. The splicing screen module according to claim 7, characterized in that, The gap between any two adjacent LED beads is filled with the first colloid.

9. The splicing screen module according to claim 8, characterized in that, Along the depth direction of the mounting groove, the side of the first colloid away from the circuit board is recessed relative to the side of the lamp bead away from the circuit board.

10. A display module, characterized in that, It includes at least two splicing screen modules as described in any one of claims 7-9, wherein adjacent splicing screen modules are spliced ​​together to form a whole.

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