Three-dimensional display structure and three-dimensional display device having it

Abstract

This utility model provides a three-dimensional display structure and a three-dimensional display device having the same. The three-dimensional display structure includes: a light source section; and a lens section disposed in front of the light source section. The lens section includes a plurality of lens elements connected in sequence. Each lens element has a first surface facing away from the light source section and a second surface facing the light source section. At least one of the first and second surfaces is a curved surface. Each lens element has an optical axis, and the optical axes of adjacent lens elements are arranged at an angle. The optical axis of each lens element passes through the light source section. The technical solution of this application can effectively solve the problem of high energy loss in related technologies.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, and more specifically, to a three-dimensional display structure and a three-dimensional display device having the same. Background Technology

[0002] In the field of optical display systems, 3D display technology has always been a research hotspot. Traditional 3D display technologies mainly rely on auxiliary devices such as stereoscopic glasses, polarized light, and shutter glasses. While these methods can achieve 3D effects, the user experience is poor, and prolonged use may lead to visual fatigue. In recent years, glasses-free 3D display technology has gradually become a research focus, with the combination of planar lenses and flat panel displays becoming the mainstream implementation scheme. For example... Figure 1 As shown, flat panel displays typically use common LCD and OLED screens. A set of cylindrical planar lenses 1 are placed in front of these displays, so that each lens divides the pixels on the display into multiple viewing angles, thus allowing different images to be seen from different viewing angles and achieving a three-dimensional effect. However, using the above method, controlling the direction of light projection by adjusting the distance between the light source 2 and the focal point results in significant energy loss. Utility Model Content

[0003] The main objective of this invention is to provide a three-dimensional display structure and a three-dimensional display device having the same, in order to solve the problem of high energy consumption in related technologies.

[0004] To achieve the above objectives, according to one aspect of the present invention, a three-dimensional display structure is provided, comprising: a light source portion; and a lens portion disposed in front of the light source portion, the lens portion comprising a plurality of lens elements connected in sequence, each lens element having a first surface facing away from the light source portion and a second surface facing the light source portion, at least one of the first surface and the second surface being a curved surface structure; wherein, each lens element has an optical axis, the optical axes of two adjacent lens elements are arranged at an angle, and the optical axis of each lens element passes through the light source portion.

[0005] Furthermore, the focal points of multiple lenses are all located on the light source.

[0006] Furthermore, the second surface is a curved structure, while the first surface is a planar structure, with the curved structure protruding towards the light source.

[0007] Furthermore, the angle between the optical axes of two adjacent lens elements is greater than or equal to 10 degrees and less than or equal to 30 degrees; and / or, in a plurality of lens elements, the angle between the optical axes of two lens elements located at both ends of the lens portion is greater than or equal to 60 degrees and less than or equal to 180 degrees.

[0008] Furthermore, the width of the lens element is greater than or equal to 1 mm and less than or equal to 10 mm.

[0009] Furthermore, the number of lens elements is greater than or equal to 3 and less than or equal to 10; and / or, the lens elements are made of one of PMMA, COC, or PC.

[0010] Furthermore, the three-dimensional display structure also includes a light control unit, which is disposed between the lens unit and the light source unit. The light control unit has multiple control areas that correspond one-to-one with the multiple lens elements. The control areas have a light-transmitting state and a light-blocking state. When the control area is in the light-transmitting state, the light generated by the light source unit can be transmitted to the corresponding lens element through the control area.

[0011] Furthermore, the light control unit includes a first electrode layer, a liquid crystal layer, and a second electrode layer stacked sequentially. The second electrode layer includes multiple sub-electrodes, each of which is disposed in correspondence with a multiple control area. The sub-electrodes have a first potential and a second potential. When the sub-electrode is at the first potential, the corresponding control area switches to a light-transmitting state. When the sub-electrode is at the second potential, the corresponding control area switches to a light-blocking state.

[0012] Furthermore, the three-dimensional display structure also includes a mounting frame, which includes a support and a mounting beam. The support is located at both ends of the mounting beam and outside the light source. Multiple lenses are mounted on the mounting beam.

[0013] According to another aspect of the present invention, a three-dimensional display device is provided, comprising a plurality of three-dimensional display structures, wherein the three-dimensional display structures are the three-dimensional display structures described above.

[0014] Applying the technical solution of this utility model, the light source is used to emit light, thereby realizing the basic function of display. The lens is located in front of the light source. The lens can refract the light emitted by the light source, so that different light rays propagate to different viewing areas, thereby forming a naked-eye 3D display effect. The lens includes multiple lens elements connected in sequence. Each lens element has a first surface facing away from the light source and a second surface facing the light source. At least one of the first and second surfaces is a curved structure. When some light rays enter or exit from the curved structure, they are refracted, thereby changing the propagation path of this part of the light rays so that they can propagate to the corresponding viewing area. Within the region, each lens element has an optical axis that passes through the geometric center of the lens element. Because the optical axes of adjacent lenses are set at an angle, the geometric center of each lens element falls on a predetermined curve, thus creating a curved surface in the lens section. Compared to related technologies using planar lenses, the optical axis of each lens element in this application passes through the light source, allowing each lens element to directly align with the focal point of one or more viewing areas. This means that light emitted from the light source can travel along the shortest and most direct path through the lens element to reach the target's viewing area, reducing scattering and absorption along the light propagation path and improving energy efficiency. Therefore, the technical solution of this application effectively solves the problem of high energy loss in related technologies. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 This diagram illustrates the principle of a three-dimensional display structure in related technologies.

[0017] Figure 2 A schematic diagram illustrating the principle of an embodiment of the three-dimensional display structure according to the present invention is shown;

[0018] Figure 3 It shows Figure 2 A side view of the three-dimensional display structure;

[0019] Figure 4 It shows Figure 2 A side view of the three-dimensional display structure;

[0020] Figure 5 It shows Figure 2 A cross-sectional schematic diagram of the light control unit of the three-dimensional display structure.

[0021] The above figures include the following reference numerals:

[0022] a. The angle between the optical axes of two adjacent lens elements; b. The angle between the optical axes of two lens elements located at both ends of the lens section; c. The width of the lens element;

[0023] 1. Plane lens; 2. Light source;

[0024] 10. Light source unit; 20. Lens unit; 21. Lens component; 211. First surface; 212. Second surface; 213. Optical axis; 30. Light control unit; 31. Control area; 32. First electrode layer; 33. Liquid crystal layer; 34. Second electrode layer; 341. Sub-electrode; 40. Mounting frame; 41. Support unit; 42. Mounting beam. Detailed Implementation

[0025] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 2 to 4 As shown, this application provides a three-dimensional display structure. An embodiment of the three-dimensional display structure of this application includes: a light source part 10 and a lens part 20; the lens part 20 is disposed on the front side of the light source part 10, and the lens part 20 includes a plurality of lens elements 21 connected in sequence. Each lens element 21 has a first surface 211 facing away from the light source part 10 and a second surface 212 facing the light source part 10. At least one of the first surface 211 and the second surface 212 is a curved surface structure; wherein, each lens element 21 has an optical axis 213, and the optical axes 213 of two adjacent lens elements 21 are arranged at an angle, and the optical axis 213 of each lens element 21 passes through the light source part 10.

[0027] Applying the technical solution of this embodiment, the light source 10 is used to emit light, thereby realizing the basic function of display. The lens 20 is disposed in front of the light source 10. The lens 20 can refract the light emitted by the light source 10, so that different light rays propagate to different viewing areas, thereby forming a naked-eye 3D display effect. The lens 20 includes a plurality of lens elements 21 connected in sequence. Each lens element 21 has a first surface 211 facing away from the light source 10 and a second surface 212 facing the light source 10. At least one of the first surface 211 and the second surface 212 is a curved structure. When some light rays enter or exit from the curved structure, they are refracted, thereby changing the propagation path of this part of the light rays so that they can propagate to the corresponding viewing area. Within the viewing area, each lens element 21 has an optical axis 213 that passes through the geometric center of the lens element 21. Since the optical axes 213 of adjacent lens elements 21 are set at an angle, the geometric center of each lens element 21 falls on a preset curve, thus forming a curved surface in the lens section 20. Compared to related technologies using planar lenses, in this embodiment, the optical axis 213 of each lens element 21 passes through the light source section 10, allowing each lens element 21 to directly align with the focal point of one or more viewing areas. This means that light emitted from the light source section 10 can travel along the shortest and most direct path through the lens element 21 to reach the target's viewing area, reducing scattering and absorption along the light propagation path and improving energy efficiency. Therefore, the technical solution of this embodiment effectively solves the problem of high energy loss in related technologies.

[0028] It should be noted that the optical axis 213 is an imaginary straight line that passes through the center of the lens element 21 and is perpendicular to the surfaces of the lens element 21 (i.e., the first surface 211 and the second surface 212). For a lens element 21, the optical axis typically passes through the optical center (geometric center) of the lens element 21. Ideally, the optical axis is the path through which light passes through the lens without refraction. That is, in this embodiment, the center of each lens element 21 is aligned with the light source 10, thereby reducing the amount of light that is deflected out of the viewing area by the light source 10. Furthermore, the three-dimensional layout and curved surface structure design of the three-dimensional lens element 20, compared to a planar lens, allows the lens element 20 to more effectively control and focus light, maintaining efficient light transmission even over a wide viewing angle. This design avoids light loss caused by deviation from the optical axis, ensuring both an expanded viewing angle and that the energy efficiency of the three-dimensional display structure is not significantly reduced.

[0029] like Figures 2 to 4As shown, the focal points of multiple lens elements 21 are all located on the light source unit 10. Specifically, in a planar lens scheme, the focal point of the lens is not always aligned with the light source unit, which may cause light to deviate from the focal point during propagation, resulting in scattering and energy loss. In this embodiment, since the focal point of each lens element 21 falls precisely on the light source unit 10, the light emitted from the light source unit 10 can be directly focused along the optical axis 213 of the lens element 21, reducing scattering and absorption of light at edges or on non-optimized paths. This means that more light energy can be effectively utilized, improving the energy efficiency and brightness performance of the entire three-dimensional display structure. Especially for high-brightness light sources such as MicroLEDs, this setting ensures that most of the light propagates in the correct direction, avoiding additional energy consumption and maintaining the high brightness characteristics of the light source. When the focal point of the lens element 21 is aligned with the light source unit 10, the light can be focused more accurately on the preset viewing area. In a planar lens, the light deviating from the focal point may cause image blurring or distortion, especially when the viewing angle increases. In this embodiment, by ensuring that light can be focused directly from the light source 10 and pass through the lens 21, aberrations are reduced, and image clarity and quality are improved. Whether it's a still image or a moving video, the image from each viewpoint maintains high resolution and detail, enhancing the realism and immersion of the 3D display. In 3D display technology, crosstalk refers to the unintentional entry of light from one viewpoint into another, causing image confusion. When the focal point of the lens 21 is located on the light source 10, the light emitted by each pixel can be more effectively controlled to propagate only to its corresponding lens 21 and viewpoint. By combining this with the light control unit 30 mentioned later, it can be ensured that each lens 21 propagates light only to a specific viewpoint for the required time, greatly reducing crosstalk.

[0030] It's important to note that the focal point refers to the point where light rays entering the lens parallel to the optical axis converge after passing through the lens. The location of the focal point depends on the lens's focal length, which is the distance from the center of the lens to the focal point. Focal length is one of the key parameters defining lens characteristics; it indicates the lens's ability to focus light rays.

[0031] like Figures 2 to 4As shown, the second surface 212 has a curved structure, while the first surface 211 has a planar structure. The curved structure protrudes towards the light source 10. Specifically, the second surface 212 can deflect light, allowing different light rays to propagate to their corresponding viewing areas, thus achieving three-dimensional display. Designing the first surface 211 as a planar structure, rather than a curved surface, reduces the manufacturing difficulty of the lens component 21 to some extent. As the main interface in contact with air, the planar design of the first surface 211 simplifies the lens manufacturing process and reduces the need for high-precision processing equipment. Furthermore, the planar structure facilitates the alignment of the lens component 21 with other components during subsequent assembly.

[0032] like Figure 4 As shown, the angle α between the optical axes 213 of two adjacent lens elements 21 is greater than or equal to 10 degrees and less than or equal to 30 degrees. Specifically, setting the angle α between the optical axes 213 of two adjacent lens elements 21 within the aforementioned angle range can effectively expand the viewing angle coverage of the 3D display. The angle α between the optical axes 213 of two adjacent lens elements 21 cannot be too small. An angle that is too small will result in too little difference in the direction of the optical axes 213 between the lens elements 21, which will limit the separation of different viewing areas, thereby reducing the viewing angle width of the naked-eye 3D display. Conversely, if the angle α between the optical axes 213 of two adjacent lens elements 21 is set within a reasonably large value, it can ensure that the optical axis 213 of each lens element 21 points to different spatial areas, covering a wider viewing angle range. In this way, no matter which angle the viewer observes from, they can see a clear and deep 3D image, enhancing the immersion and user experience of the 3D display. Specifically, the included angle α between the optical axes 213 of two adjacent lens elements 21 can be 10 degrees, 16 degrees, 20 degrees, 22 degrees, 27 degrees, or 30 degrees.

[0033] like Figure 4As shown, among the multiple lens elements 21, the included angle b between the optical axes 213 of the two lens elements 21 located at both ends of the lens section 20 is greater than or equal to 60 degrees and less than or equal to 180 degrees. The included angle b between the optical axes 213 of the two lens elements 21 located at both ends of the lens section 20 essentially defines the maximum viewing angle range of the 3D display. If the included angle b between the optical axes 213 of the two lens elements 21 located at both ends of the lens section 20 is set too small, the viewing angle range of the 3D display will also be limited, resulting in a 3D effect only being experienced when viewed from a very narrow angle. Conversely, by setting the included angle b between the optical axes 213 of the two lens elements 21 located at both ends of the lens section 20 to a reasonably large value, it can be ensured that the viewing angle coverage of the 3D display is wide enough, so that even when the viewer observes from relatively extreme angles, a good 3D image can be perceived, greatly improving the user experience and the practical value of the 3D display structure. In this embodiment, the included angle b between the optical axes 213 of the two lens elements 21 located at both ends of the lens section 20 can be 60 degrees, 76 degrees, 90 degrees, 123 degrees, 158 degrees or 180 degrees.

[0034] like Figure 4 As shown, the width c of the lens element 21 is greater than or equal to 1 mm and less than or equal to 10 mm. The width c of the lens element 21 directly affects the resolution and viewing angle of the 3D display. If the width c of the lens element 21 is too small, the number of lens elements 21 corresponding to each pixel increases, which theoretically can improve the resolution, but in practice, it will lead to a limited viewing angle because the small spacing between the lens elements 21 will increase crosstalk and reduce the separation of images from different viewing angles. Conversely, if the width c of the lens element 21 is too large, although it can increase the viewing angle, it will reduce the pixel density and reduce the resolution. Setting the width c of the lens element 21 within a reasonable range can find the best balance between resolution and viewing angle, ensuring both high resolution and a wide viewing angle 3D display effect, thus improving the overall display quality. In addition, the width c of the lens element 21 also affects the energy efficiency of the 3D display structure. If the width c of the lens element 21 is too small, it means there are more lens edges, and the edge areas have lower light control efficiency, which easily leads to light scattering and energy loss. By setting the width c of the lens element 21 to a suitable large value, the influence of the lens edge can be reduced, the proportion of the central area of ​​the lens can be increased, thereby improving the light converging efficiency and reducing energy waste. Specifically, in this embodiment, the width c of the lens element 21 can be 1 mm, 3.3 mm, 5.2 mm, 7.8 mm, 8 mm, or 10 mm.

[0035] Furthermore, in this embodiment, the number of lens elements 21 is greater than or equal to 3 and less than or equal to 10. The number of lens elements 21 directly affects production costs and efficiency. An excessive number will increase material costs and processing complexity, especially for 3D display structures requiring high-precision positioning and assembly. Setting the number within a reasonable range can reduce the total number of lens elements 21 required, simplify the assembly process, reduce reliance on high-precision equipment, and thus effectively control production costs. Simultaneously, it reduces assembly and debugging time, improves production efficiency and yield, and is beneficial for large-scale production and market promotion. Specifically, in this embodiment, the number of lens elements 21 can be 3, 4, 5, 7, 8, or 10.

[0036] Furthermore, in this embodiment, the lens element 21 is made of one of PMMA, COC, or PC. PMMA (polymethyl methacrylate) is often referred to as acrylic or plexiglass. Its advantages include high transparency, excellent weather resistance, and good scratch resistance. COC (cyclic olefin copolymer) has excellent optical properties and high transparency. Its low moisture absorption makes it perform well in humid environments. It is suitable for applications requiring high-precision optical properties. PC (polycarbonate) is known for its high strength and good impact resistance. It has good optical transparency and heat resistance. It is often used in applications requiring durability and strength.

[0037] like Figures 2 to 5 As shown, the three-dimensional display structure also includes a light control unit 30, which is disposed between the lens unit 20 and the light source unit 10. The light control unit 30 has multiple control areas 31 corresponding to the multiple lens elements 21. Each control area 31 has a light-transmitting state and a light-blocking state. When a control area 31 is in the light-transmitting state, the light generated by the light source unit 10 can propagate through the control area 31 to the corresponding lens element 21. Specifically, the multiple control areas 31 can switch to the light-blocking state as needed, meaning it can precisely control which parts of the light can pass through to the corresponding lens element 21. By allowing the control areas 31 to switch between light-transmitting and light-blocking states according to display requirements, it ensures that the light refracted by each lens element 21 is directed to the corresponding viewing area, thereby significantly reducing crosstalk. This results in a purer image in each viewing area, a more pronounced stereoscopic effect, and improved overall display quality. Because the light control unit 30 can selectively allow light to pass through, it ensures efficient utilization of light energy. In a planar lens, light indiscriminately strikes the lens element, causing some light to be ineffectively utilized for display, resulting in energy waste. The introduction of the light control unit 30 allows only the light that needs to be displayed to pass through, reducing the scattering or absorption of light in non-target viewing areas, thereby improving the effective utilization rate of the light generated by the light source unit 10, reducing overall energy consumption, and improving the energy efficiency of the three-dimensional display structure.

[0038] like Figures 2 to 5 As shown, the light control unit 30 includes a first electrode layer 32, a liquid crystal layer 33, and a second electrode layer 34 stacked sequentially. The second electrode layer 34 includes multiple sub-electrodes 341, each corresponding to a multiple control regions 31. Each sub-electrode 341 has a first potential and a second potential. When a sub-electrode 341 is at the first potential, the corresponding control region 31 switches to a light-transmitting state; when a sub-electrode 341 is at the second potential, the corresponding control region 31 switches to a light-blocking state. Specifically, when the voltage between the first electrode layer 32 and the second electrode layer 34 changes, the liquid crystal molecules inside the liquid crystal layer 33 rearrange according to the direction of the applied electric field. This electric field-driven directional arrangement of the liquid crystal molecules affects the propagation characteristics of light through the liquid crystal layer 33. Each of the multiple sub-electrodes 341 on the second electrode layer 34 corresponds to one control region 31. By controlling the sub-electrode 341 to be at a first potential or a second potential, the arrangement of liquid crystal molecules in the corresponding local area can be changed, thereby altering the optical properties of the corresponding control area 31 and achieving switching between light-transmitting and light-blocking states. When the sub-electrode 341 is at the first potential, the corresponding electric field causes the liquid crystal molecules to align along the direction of light propagation, allowing light passing through the first electrode layer 32 to pass through the liquid crystal layer 33 almost unimpeded and reach the corresponding lens element 21, forming a light-transmitting state. When the sub-electrode 341 is switched to the second potential, the direction of the electric field changes, causing the liquid crystal molecules to align in a direction perpendicular to the direction of light propagation or to appear in a random state. This scatters light, preventing light from effectively passing through the liquid crystal layer 33, thus placing the corresponding control area 31 in a light-blocking state. Through the rapid switching of the sub-electrode 341 potential, the light transmittance of each control area 31 can be precisely controlled. This allows the three-dimensional display structure to achieve fine adjustment of the light propagation path, greatly reducing crosstalk and improving the separation and purity of images in different viewing areas.

[0039] like Figures 2 to 4 As shown, the 3D display structure also includes a mounting frame 40, which includes a support 41 and a mounting beam 42. The support 41 is located at both ends of the mounting beam 42 and outside the light source 10. Multiple lens elements 21 are mounted on the mounting beam 42. Specifically, the support 41 can raise the lens element 20 as a whole, making it easier for operators to adjust the distance between the light source 10 and the lens element 20. The mounting beam 42 includes multiple mounting frames, each corresponding to a lens element 21, with one lens element 21 mounted in its corresponding mounting frame.

[0040] This application also provides a three-dimensional display device, which includes multiple three-dimensional display structures, wherein the three-dimensional display structure is the aforementioned three-dimensional display structure. The aforementioned three-dimensional display structure can effectively solve the problem of high energy consumption in related technologies, and the three-dimensional display device having the aforementioned three-dimensional display structure also has the aforementioned advantages.

[0041] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A three-dimensional display structure, characterized in that, include: Light source section (10); A lens section (20) is disposed on the front side of the light source section (10). The lens section (20) includes a plurality of lens elements (21) connected in sequence. Each lens element (21) has a first surface (211) facing away from the light source section (10) and a second surface (212) facing the light source section (10). At least one of the first surface (211) and the second surface (212) is a curved surface structure. Each of the lens elements (21) has an optical axis (213), and the optical axes (213) of two adjacent lens elements (21) are arranged at an angle to each other, and the optical axis (213) of each lens element (21) passes through the light source part (10).

2. The three-dimensional display structure according to claim 1, characterized in that, The focal points of the plurality of lens elements (21) are all located on the light source part (10).

3. The three-dimensional display structure according to claim 1, characterized in that, The second surface (212) is the curved surface structure, the first surface (211) is a planar structure, and the curved surface structure protrudes toward the light source part (10).

4. The three-dimensional display structure according to claim 1, characterized in that, The included angle (a) between the optical axes (213) of two adjacent lens elements (21) is greater than or equal to 10 degrees and less than or equal to 30 degrees; and / or, In the plurality of lens elements (21), the included angle (b) between the optical axes (213) of the two lens elements (21) located at both ends of the lens portion (20) is greater than or equal to 60 degrees and less than or equal to 180 degrees.

5. The three-dimensional display structure according to claim 1, characterized in that, The width (c) of the lens element (21) is greater than or equal to 1 mm and less than or equal to 10 mm.

6. The three-dimensional display structure according to claim 1, characterized in that, The number of the lens elements (21) is greater than or equal to 3 and less than or equal to 10; and / or, The lens element (21) is made of one of PMMA, COC, or PC.

7. The three-dimensional display structure according to any one of claims 1 to 6, characterized in that, The three-dimensional display structure also includes a light control unit (30), which is disposed between the lens unit (20) and the light source unit (10). The light control unit (30) has multiple control areas (31) that are disposed one-to-one with the multiple lens elements (21). The control area (31) has a light-transmitting state and a light-blocking state. When the control area (31) is in the light-transmitting state, the light generated by the light source unit (10) can be transmitted through the control area (31) to the corresponding lens element (21).

8. The three-dimensional display structure according to claim 7, characterized in that, The light control unit (30) includes a first electrode layer (32), a liquid crystal layer (33), and a second electrode layer (34) stacked sequentially. The second electrode layer (34) includes a plurality of sub-electrodes (341), and the plurality of sub-electrodes (341) are arranged in a one-to-one correspondence with a plurality of control regions (31). The sub-electrodes (341) have a first potential and a second potential. When the sub-electrodes (341) are at the first potential, the corresponding control region (31) switches to the light-transmitting state. When the sub-electrodes (341) are at the second potential, the corresponding control region (31) switches to the light-blocking state.

9. The three-dimensional display structure according to any one of claims 1 to 6, characterized in that, The three-dimensional display structure also includes a mounting frame (40), which includes a support (41) and a mounting beam (42). The support (41) is disposed at both ends of the mounting beam (42) and located outside the light source (10). A plurality of the lens elements (21) are mounted on the mounting beam (42).

10. A three-dimensional display device, comprising a plurality of three-dimensional display structures, characterized in that, The three-dimensional display structure is the three-dimensional display structure according to any one of claims 1 to 9.

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