Three-dimensional puzzle unit and three-dimensional puzzle

Abstract

The utility model belongs to the field of puzzles, and particularly relates to a three-dimensional puzzle unit and a three-dimensional puzzle, and the three-dimensional puzzle unit comprises a base layer and a holographic display layer; the holographic display layer is used for displaying a three-dimensional holographic image; at least one side of the base layer is provided with a splicing edge used for being spliced with an adjacent three-dimensional puzzle unit, the holographic display layer is arranged at one end of the base layer, and the holographic display layer is at least located on one side of the splicing edge and aligned with the splicing edge. The utility model provides the jigsaw puzzle device which is more interesting and more attractive and can be used for observing the complete three-dimensional image without missing complete image information, so that the use experience of a user is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of jigsaw puzzles, specifically relating to a three-dimensional jigsaw puzzle unit and a three-dimensional jigsaw puzzle. Background Technology

[0002] As a popular intellectual toy, jigsaw puzzles have long held a significant position in the education and entertainment market due to their intellectual challenge and artistic appeal derived from image deconstruction and spatial recombination. Traditional jigsaw puzzles typically employ irregularly shaped edges with interlocking tabs, allowing adjacent pieces to be securely connected through physical interlocking. However, while ensuring structural stability, this classic assembly mechanism inevitably creates linear seams running across the puzzle surface. This results in the continuous pattern printed on the puzzle pieces being forcibly fragmented at the seams, leading to information loss on both a visual and functional level. Specifically, when key elements in the pattern (such as facial contours, text strokes, or QR code modules) cross the boundaries of the puzzle pieces, the physical separation at the seams directly disrupts the integrity of these elements, causing a sense of discontinuity in the overall image after assembly. Therefore, achieving seamless connection and lossless restoration of pattern information at the seams while preserving the independent and separable nature of the puzzle pieces has become a key technological breakthrough direction for improving the artistic expression and functional applicability of jigsaw puzzles. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a three-dimensional jigsaw puzzle unit and a three-dimensional jigsaw puzzle that can realize the observation of complete three-dimensional image information without any missing parts.

[0004] This utility model provides a three-dimensional jigsaw puzzle unit, including a base layer and a holographic display layer;

[0005] The holographic display layer is used to display three-dimensional holographic images;

[0006] The base layer has a splicing edge on at least one side for splicing with adjacent three-dimensional jigsaw puzzle units. The holographic display layer is disposed at one end of the base layer, and the holographic display layer is located at least on one side of the splicing edge and aligned with the splicing edge.

[0007] Furthermore, the holographic display layer is fully disposed on at least one side of the base layer.

[0008] Furthermore, the base layer is made of a transparent material.

[0009] Furthermore, this 3D jigsaw puzzle unit also includes a transparent protective layer, which is disposed at the end of the holographic display layer opposite to the base layer.

[0010] Furthermore, the outer side of the base layer is provided with splicing edges.

[0011] Furthermore, a magnetic component is provided on the side of the base layer away from the holographic display layer. The magnetic component is used to magnetically attract the magnetic components of adjacent three-dimensional puzzle units or the puzzle frame of the three-dimensional puzzle.

[0012] The present invention also provides a three-dimensional jigsaw puzzle, comprising n of the above-mentioned three-dimensional jigsaw puzzle units, where n is greater than or equal to 2;

[0013] The holographic display layers on the n three-dimensional jigsaw puzzle units are formed by cutting a complete three-dimensional hologram into n parts, with each part set on one of the three-dimensional jigsaw puzzle units.

[0014] Furthermore, this 3D puzzle also includes puzzle frames;

[0015] The puzzle frame is provided with a splicing platform, and the n three-dimensional puzzle units can be spliced ​​together and fitted onto the splicing platform.

[0016] Furthermore, the outer wall of the puzzle frame is provided with a light source that shines towards the puzzle platform.

[0017] Furthermore, when the base layer is made of a transparent material, a two-dimensional image layer is provided at the bottom of the splicing platform.

[0018] The beneficial effects of this utility model are that the three-dimensional jigsaw puzzle unit provided by this utility model can be spliced ​​together to form a three-dimensional jigsaw puzzle. During the puzzle-solving process, the user needs to splice multiple three-dimensional holographic images to form a complete three-dimensional holographic image. Since each holographic display layer displays a three-dimensional holographic image, the displayed image information is far greater than that displayed by a two-dimensional jigsaw puzzle unit of the same size, thus increasing the complexity and interest of the puzzle. In addition, during the splicing of two adjacent holographic display layers, it is not only necessary to align and splice the surface images on their surfaces, but also to observe the internal three-dimensional images of the holographic display layer on each three-dimensional jigsaw puzzle unit. It is necessary to align and splice the internal three-dimensional images of multiple three-dimensional jigsaw puzzle units. Therefore, compared to the two-dimensional connection of a two-dimensional jigsaw puzzle, when splicing three-dimensional jigsaw puzzle units, it is necessary to observe not only the surface images of the holographic display layers, but also the internal three-dimensional images, thus increasing the difficulty and interest of the three-dimensional jigsaw puzzle. Furthermore, after multiple 3D puzzle units are pieced together to form a 3D puzzle, all the holographic display layers combine to display a larger, complete 3D image. At this point, the seams of the holographic display layers corresponding to the splicing edges can form a grid structure window for observing the surface image of the complete 3D image. When observing the complete 3D image from the holographic display layer of each 3D puzzle unit, no seams are visible, allowing for the observation of a complete 3D image without any missing details. This achieves the observation of complete 3D image information without any gaps. Compared to the inevitable pattern loss (at the seams) caused by the seams in 2D puzzles, this provides a more interesting and aesthetically pleasing puzzle device, greatly enhancing the user experience. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the three-dimensional jigsaw puzzle unit structure with a transparent protective layer in this utility model;

[0020] Appendix Figure 2 This is a schematic diagram of the three-dimensional jigsaw puzzle unit structure with two base layers in this utility model;

[0021] Appendix Figure 3 This is a top view of the three-dimensional jigsaw puzzle in this utility model;

[0022] Appendix Figure 4 This is a structural diagram of the three-dimensional jigsaw puzzle with a puzzle frame in this utility model;

[0023] Appendix Figure 5 This is a structural schematic diagram of the three-dimensional jigsaw puzzle with magnetic components in this utility model;

[0024] Appendix Figure 6 This is a top view of the three-dimensional jigsaw puzzle with a puzzle frame in this utility model;

[0025] Appendix Figure 7 For the appendix Figure 6 Sectional view along line AA;

[0026] Appendix Figure 8 This is a schematic diagram of the three-dimensional cube puzzle in this utility model;

[0027] Appendix Figure 9 For the appendix Figure 8 A schematic diagram of the structure behind the hidden planar 3D jigsaw puzzle units;

[0028] Appendix Figure 10 For the appendix Figure 8 A structural diagram showing only the folded 3D jigsaw puzzle unit.

[0029] In the diagram, 1-3D jigsaw puzzle unit; 11-base layer; 111-splitting edge; 12-holographic display layer; 121-splitting seam; 122-internal 3D image; 123-surface image; 13-transparent protective layer; 14-magnetic component; 2-jigsaw puzzle frame; 21-splitting platform; 22-2D image layer; 3-light source; 4-complete 3D image. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] As attached Figure 1 -Appendix Figure 10 As shown, this utility model discloses a three-dimensional jigsaw puzzle unit 1, which is used as a jigsaw puzzle unit for three-dimensional jigsaw puzzles. It includes a base layer 11 and a holographic display layer 12, wherein the holographic display layer 12 is fixedly disposed at one end of the base layer 11. The base layer 11 is used to support the holographic display layer 12, providing a suitable thickness and structural stability for the entire three-dimensional jigsaw puzzle unit 1, avoiding the problems of inconvenience in handling caused by the holographic display layer 12 being too thin and easy to deform due to its thinness and softness. The specific material of the base layer 11 can be selected by those skilled in the art according to the actual situation. This utility model embodiment does not limit this. For example, the base layer 11 can be made of plastic or glass. Preferably, the base layer 11 is made of transparent acrylic sheet.

[0036] In addition, the shape of the base layer 11 can be either a straight plate structure or a three-dimensional structure, see attached figure. Figure 1 -Appendix Figure 6 As shown in the figure (where the base layer 11 is a rectangular straight plate structure), when it is a straight plate structure, the base layer 11 can be a regular polygon or any irregular planar structure that can be spliced ​​with at least one other three-dimensional jigsaw puzzle unit 1. In this case, the holographic display layer 12 is attached to one end face of the base layer 11; see attached figure. Figure 8 -Appendix Figure 10As shown in the figure (some of the base layers 11 are rectangular straight plates, and some of the base layers 11 are angled structures), when the base layer 11 is a three-dimensional structure, it can adopt an arc-shaped structure, an angled structure, or any irregular three-dimensional structure that can be spliced ​​with at least one other three-dimensional jigsaw puzzle unit 1 (adjacent splicing edges 11 are spliced). In this case, the holographic display layer 12 is attached to at least one surface of the base layer 11 and can be spliced ​​with the holographic display layers 12 of adjacent three-dimensional jigsaw puzzle units 1 that are spliced ​​together. For example, when the base layer 11 is an arc-shaped structure, multiple base layers 11 can be spliced ​​into a sphere, and when the base layer 11 is an angled structure, multiple base layers 11 can be spliced ​​into a cube. That is, the shape of the base layer 11 can also be selected by those skilled in the art according to the actual situation to form various different forms of planar or three-dimensional jigsaw puzzles. This utility model embodiment does not limit this.

[0037] Furthermore, the structure of the base layer 11 of multiple 3D puzzle units 1 can be the same or different, as shown in the attached document. Figure 4 and attached Figure 5 For example, if all base layers 11 are straight plates with positive polygonal deformation, they can be assembled as planar puzzle pieces, as shown in the attached diagram. Figure 8 For example, some base layers 11 are rectangular straight plate structures, and some base layers 11 are angled structures. In this case, as a three-dimensional puzzle, it can be used to assemble layer cubes (the rectangular straight plate base layer 11 serves as the face of the cube, and the angled base layer 11 serves as the corner).

[0038] The holographic display layer 12 is used to display three-dimensional holographic images. Its specific principle and formation method are existing technologies and will not be described in detail in this utility model. For details, please refer to the structure and imaging principle of the holographic display layer described in Chinese utility model patent "CN221892888U A Holographic Refrigerator Magnet".

[0039] Reference Appendix Figure 4 The base layer 11 has a splicing edge 111 on at least one side for splicing with adjacent three-dimensional jigsaw puzzle units 1. The holographic display layer 12 is aligned with the splicing edge 111 on at least one side. That is, when adjacent three-dimensional jigsaw puzzle units 1 are spliced ​​together, the holographic display layers 12 on the side of the splicing edge 111 of the adjacent three-dimensional jigsaw puzzle units 1 are also spliced ​​together. At this time, the three-dimensional holographic images in the spliced ​​holographic display layers 12 can be spliced ​​together to form a whole. This indicates that at least two adjacent three-dimensional jigsaw puzzle units 1 are correctly spliced ​​together. When the three-dimensional holographic images in the spliced ​​holographic display layers 12 are independent and unrelated, this indicates that at least two adjacent three-dimensional jigsaw puzzle units 1 are incorrectly spliced ​​together.

[0040] It should be noted that the splicing edge 111 has different forms depending on the structure of the base layer 11. For example, when the base layer 11 is a straight plate structure, the splicing edge 111 can be a straight edge or an interlocking edge. The interlocking edge is a structure in which two adjacent three-dimensional jigsaw puzzle units 1 interlock with each other. For example, the splicing edge 111 of one three-dimensional jigsaw puzzle unit 1 can be an arc groove, and the splicing edge 111 of the other three-dimensional jigsaw puzzle unit 1 can be an arc block. Alternatively, the splicing edge 111 of one three-dimensional jigsaw puzzle unit 1 can be a straight edge with an interlocking groove set on the straight edge, and the splicing edge 111 of the other three-dimensional jigsaw puzzle unit 1 can be a straight edge with an interlocking block set on the straight edge. (See attached diagram) Figure 8 When the base layer 11 is a three-dimensional structure, the splicing edge 111 can be spliced ​​with at least one splicing edge 111 of two three-dimensional jigsaw puzzle units 1. That is, the shape and number of splicing edges 111 can also be selected by those skilled in the art according to the actual situation, and this utility model embodiment does not limit this.

[0041] The three-dimensional jigsaw puzzle unit 1 provided by this utility model can be assembled into a three-dimensional jigsaw puzzle through multiple splicing. During the puzzle-solving process, the user needs to splice multiple three-dimensional holographic images to form a complete three-dimensional holographic image. Since each holographic display layer 12 displays a three-dimensional holographic image, the displayed image information is far greater than that displayed by a single two-dimensional jigsaw puzzle unit of the same size, thus increasing the complexity and interest of the puzzle. Furthermore, refer to the attached... Figure 7 During the splicing of two adjacent holographic display layers 12, it is necessary not only to align and splice the surface images 123 on their surfaces, but also to observe the internal three-dimensional images 122 of the holographic display layer 12 on each three-dimensional jigsaw puzzle unit 1. Multiple internal three-dimensional images 122 of the three-dimensional jigsaw puzzle unit 1 need to be aligned and spliced. Therefore, compared with the two-dimensional docking of two-dimensional jigsaw puzzles, when splicing three-dimensional jigsaw puzzle units 1, it is necessary not only to observe the surface images 123 of the holographic display layer 12, but also to observe the internal three-dimensional images 122, thereby increasing the difficulty and interest of three-dimensional jigsaw puzzles. Furthermore, after multiple 3D puzzle units 1 are spliced ​​together to form a 3D puzzle, all the holographic display layers 12 combine to display a larger, complete 3D image 4. At this time, the splicing seams 121 of the holographic display layers 12 corresponding to the splicing edges 111 can form a grid structure window for observing the surface image 123 of the complete 3D image 4. When observing the complete 3D image 4 from the holographic display layer 12 of each 3D puzzle unit 1, the splicing seams 121 will not be visible. Thus, the complete 3D image 4 without splicing seams 121 can be observed, without missing any details of the complete 3D image 4. This achieves the observation of complete image information without any missing parts of the complete 3D image 4. Compared with the inevitable pattern loss (at the splicing seams) caused by the splicing seams of 2D puzzles, this provides a more interesting and aesthetically pleasing puzzle device, greatly improving the user experience.

[0042] Figure 7 The exemplary images shown are the complete 3D image 4 composed of all 3D puzzle units 1 represented by elliptical dashed lines, the surface image 123 composed of all 3D puzzle units 1, and the internal 3D image 122 displayed by a single 3D puzzle unit 1, and do not represent the actual images.

[0043] In one embodiment, the holographic display layer 12 is fully covered on at least one side of the base layer 11. This can significantly increase the display area of ​​the holographic display layer 12. For example, when the base layer 11 is a straight plate structure, the holographic display layer 12 covers all positions on one end face of the base layer 11, so that all parts of the outer side of that face of the base layer 11 can form a splicing edge 111. Or, for example, when the base layer 11 is a multi-faceted structure with angles, the holographic display layer 12 fully covers multiple outer faces of the base layer 11.

[0044] In one embodiment, the base layer 11 is made of a transparent material, allowing the holographic 3D image of the holographic display layer 12 to be displayed on both sides of the 3D jigsaw puzzle unit 1. However, this requires additional effort to determine the orientation of the 3D jigsaw puzzle unit 1 during the puzzle-solving process, further increasing the difficulty and complexity of the 3D jigsaw puzzle. In a preferred embodiment, refer to the attached... Figure 2 When the base layer 11 is a straight plate structure, two sets of base layers 11 are set on both sides of the holographic display layer 12. At this time, the two base layers 11 can not only provide physical protection for the holographic display layer 12 to prevent it from being scratched, but also make the three-dimensional puzzle structure a symmetrical structure. When assembling the puzzle, more effort is needed to determine the front and back of the three-dimensional puzzle unit 1, which further increases the difficulty and complexity of the three-dimensional puzzle.

[0045] In one embodiment, reference is made to the appendix. Figure 1 The three-dimensional jigsaw puzzle unit 1 also includes a transparent protective layer 13. The transparent protective layer 13 is disposed at the end of the holographic display layer 12 away from the base layer 11. The transparent protective layer 13 is the outer film layer of the three-dimensional jigsaw puzzle unit 1 and is used to provide physical protection for the holographic display layer 12. The transparent protective layer 13 can be formed of polymer material. The specific material can be selected by those skilled in the art according to the actual situation. This utility model embodiment does not limit this.

[0046] In one embodiment, reference is made to the appendix. Figure 4 The three-dimensional jigsaw puzzle unit 1 in the middle has splicing edges 111 on the outer side of the base layer 11. At this time, multiple three-dimensional jigsaw puzzle units 1 can be used to cover and splice all the outer edges of the three-dimensional jigsaw puzzle unit 1, so that all the outer sides of the holographic display layer 12 have corresponding holographic display layers 12 for splicing.

[0047] In one embodiment, reference is made to the appendix. Figure 5A magnetic element 14 is provided on the side of the base layer 11 opposite to the holographic display layer 12. The magnetic element 14 is used to magnetically attract the magnetic elements 14 of adjacent three-dimensional jigsaw puzzle units 1 or the jigsaw puzzle frame 2 of the three-dimensional jigsaw puzzle. For example, the magnetic element 14 may include magnets arranged throughout the entire layer; or it may include multiple magnetic strips, which are evenly or randomly distributed on the base layer 11, or it may be a magnetic block set at the corner of the base layer 11; of course, the specific structure of the magnetic element 14 is not limited to these. Any structure that can attract adjacent three-dimensional jigsaw puzzle units 1 in the splicing direction or attract three-dimensional jigsaw puzzle units 1 to the jigsaw puzzle frame 2 is within the scope of the technical solution protected by this utility model embodiment.

[0048] Reference Appendix Figure 3 -Appendix Figure 10 The present invention also provides a three-dimensional jigsaw puzzle, comprising n of the above-mentioned three-dimensional jigsaw puzzle units 1, where n is greater than or equal to 2;

[0049] The holographic display layer 12 on each of the n three-dimensional jigsaw puzzle units 1 is formed by cutting a complete three-dimensional holographic photograph into n parts, with each part set on one of the three-dimensional jigsaw puzzle units 1.

[0050] Preferably, taking the straight-plate structure of the base layer 11 as an example, when producing the three-dimensional puzzle, a complete holographic display layer 12 can be attached to a complete base layer 11, and the holographic display layer 12 and the base layer 11 can be cut simultaneously by laser cutting to cut into multiple three-dimensional puzzle units 1.

[0051] In one embodiment, reference is made to the appendix. Figure 4 Appendix Figure 6 Appendix Figure 7 and attached Figure 9 This 3D puzzle also includes puzzle frame 2;

[0052] The jigsaw puzzle frame 2 is provided with a jigsaw puzzle platform 21, which is used to provide a supporting and fixed jigsaw puzzle structure for the three-dimensional jigsaw puzzle unit 1. (See attached figure) Figure 7 For example, when the base layer 11 of the 3D puzzle unit 1 is a straight plate structure, multiple 3D puzzle units 1 can be assembled on the planar splicing platform 21 to facilitate the handling and repositioning of the puzzle pieces. (See attached diagram.) Figure 9 For example, when the base layer 11 of the 3D puzzle unit 1 is a three-dimensional structure, the splicing platform 21 can serve as the internal frame structure of the three-dimensional structure after the final 3D puzzle pieces are assembled, thereby providing support for the three-dimensionally arranged 3D puzzle units 1. After n 3D puzzle units 1 are spliced ​​together, they can be fitted onto the splicing platform 21. In this case, the splicing platform 21 can fix the assembled 3D puzzle, ensuring that the positions of multiple 3D puzzle units 1 are relatively fixed, allowing it to be used as a 3D painting or a model for attaching 3D paintings.

[0053] Preferably, in the embodiment where a magnetic component 14 is provided on the base layer 11, a magnetic attraction structure, such as a metal component, can be provided on the splicing platform 21. Then, after the three-dimensional puzzle unit 1 is placed on the splicing platform 21, the three-dimensional puzzle unit 1 can be attracted to the splicing platform 21, simplifying the operation difficulty of the non-intellectual activity part of the three-dimensional puzzle.

[0054] In one embodiment, reference is made to the appendix. Figure 7 The outer wall of the puzzle frame 2 is provided with a light source 3 that illuminates the splicing platform 21. The light source 3 can illuminate the holographic display layer 12 on the splicing platform 21 of the puzzle frame 2 at a specific angle. At this time, the holographic display layer 12 can form a three-dimensional holographic image of the object to be displayed based on the principle of diffraction. By having a built-in light source 3 on the puzzle frame 2, the step of the user finding a light source separately can be eliminated, simplifying the operation difficulty of the non-intellectual activity of three-dimensional puzzle. The light source 3 only needs to improve the display effect of the holographic display layer 12, and its specific type can be selected by those skilled in the art according to the actual situation. This embodiment of the utility model does not limit this.

[0055] In one embodiment, when the base layer 11 is made of a transparent material, a two-dimensional image layer 22 is provided at the bottom of the splicing platform 21. The two-dimensional image layer 22 is a planar pattern, which can be a colored pattern or a black and white pattern, etc. The type of pattern is not limited. It can be the same as or related to the object to be displayed in the holographic display layer 12, or it can be a color block, such as a pure black background. At this time, the two-dimensional image layer 22 is located inside the holographic display layer 12. The two-dimensional pattern can be observed through the holographic display layer 12, forming a scene of fusion display of three-dimensional and two-dimensional images, improving the stereoscopic display effect of the three-dimensional puzzle. Preferably, the pattern of the two-dimensional image layer 22 can be used as a guide pattern or an interference pattern for the three-dimensional puzzle. When used as a guide pattern, it can simplify the assembly difficulty of the three-dimensional puzzle. When used as an interference pattern, it can increase the assembly difficulty of the three-dimensional puzzle, thereby providing puzzles of different difficulty for selection and use. This further improves the user experience of the three-dimensional puzzle.

[0056] The above description is merely an embodiment and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations, modifications, or alterations to the technical solution of this utility model without departing from its scope. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from its scope, should fall within the protection scope of this utility model.

Claims

1. A three-dimensional jigsaw puzzle unit, characterized in that, It includes a base layer (11) and a holographic display layer (12); The holographic display layer (12) is used to display three-dimensional holographic images; The base layer (11) has a splicing edge (111) on at least one side for splicing with an adjacent three-dimensional jigsaw puzzle unit (1). The holographic display layer (12) is disposed at one end of the base layer (11), and the holographic display layer (12) is at least located on one side of the splicing edge (111) and aligned with the splicing edge (111).

2. The three-dimensional jigsaw puzzle unit as described in claim 1, characterized in that, The holographic display layer (12) is fully covered on at least one side of the base layer (11).

3. The three-dimensional jigsaw puzzle unit as described in claim 1, characterized in that, The base layer (11) is made of transparent material.

4. The three-dimensional jigsaw puzzle unit as described in claim 1, characterized in that, It also includes a transparent protective layer (13), which is disposed on the end of the holographic display layer (12) away from the base layer (11).

5. The three-dimensional jigsaw puzzle unit as described in claim 1, characterized in that, The outer side of the base layer (11) is provided with splicing edges (111).

6. The three-dimensional jigsaw puzzle unit as described in claim 1, characterized in that, A magnetic component (14) is provided on the side of the base layer (11) away from the holographic display layer (12). The magnetic component (14) is used to magnetically attract the magnetic component (14) of the adjacent three-dimensional puzzle unit (1) or the puzzle frame (2) of the three-dimensional puzzle.

7. A three-dimensional jigsaw puzzle, characterized in that, It includes n three-dimensional jigsaw puzzle units (1) as described in any one of claims 1-6, where n is greater than or equal to 2; The holographic display layer (12) on each of the n three-dimensional jigsaw puzzle units (1) is formed by cutting a complete three-dimensional holographic photograph into n parts, and each part is set on one of the three-dimensional jigsaw puzzle units (1).

8. The three-dimensional puzzle as described in claim 7, characterized in that, It also includes the puzzle frame (2); The puzzle frame (2) is provided with a splicing platform (21), and the n three-dimensional puzzle units (1) can be spliced ​​together and fitted onto the splicing platform (21).

9. The three-dimensional jigsaw puzzle as described in claim 8, characterized in that, The outer wall of the puzzle frame (2) is provided with a light source (3) that shines toward the puzzle platform (21).

10. The three-dimensional puzzle as described in claim 8, characterized in that, When the base layer (11) is made of transparent material, a two-dimensional image layer (22) is provided at the bottom of the splicing platform (21).

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