A spherical screen

Abstract

The utility model discloses a kind of spherical screens, belong to display equipment technical field, spherical screen includes the display surface of spherical or part of spherical, multiple first display modules are equipped on display surface, first display module is arranged between two reference curves, reference curve is the curve of polar point along the extension of display surface to equator, first display module includes multiple first display units arranged along the extension direction of reference curve, first display unit is polygon, first display unit includes multiple first light bar, first light bar can be more close to the surface of spherical, so that the display surface of the spherical screen is closer to spherical surface, and display effect is better.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a spherical screen. Background Technology

[0002] With the development of LED displays, LED spherical screens have expanded from a single cinema application to diversified fields, becoming an important part of the display industry. Their applications cover cultural entertainment, performing arts, commercial displays, brand marketing, exhibitions, digital art, and creative spaces. Existing LED spherical screens are typically composed of multiple triangular or trapezoidal display modules spliced ​​together. Regardless of the outer contour of the display modules, their surface remains flat, and the transitions at the splicing points are not smooth enough, resulting in an uneven surface on the LED spherical screen. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a spherical screen to solve the problem of uneven transition at the splicing position on the surface of the current LED spherical screen.

[0004] The objective of this utility model is achieved through the following technical solution: A spherical screen includes a display surface that is spherical or a portion thereof; The display surface is provided with a plurality of first display modules, and the first display modules are disposed between two adjacent reference curves, wherein the reference curves are curves extending from the poles of the display surface to the equator; The first display module includes a plurality of first display units arranged along the extension direction of the reference curve, wherein the first display units are polygonal; The first display unit includes a plurality of first light strips.

[0005] Preferably, the first display unit is in the shape of a parallelogram. Along the extension direction of the reference curve, the first display unit has an upper edge and a lower edge parallel to the latitude line of the display surface, and the length of the upper edge is 90% to 100% of the length of the lower edge.

[0006] Preferably, a plurality of the first light strips are arranged at intervals along the upper edge to the lower edge, and the first light strips include a plurality of sub-light strips of different lengths.

[0007] Preferably, the first light strip includes a first substrate disposed on the display surface and a plurality of first light-emitting units disposed on the first substrate. The first substrate is strip-shaped, and the plurality of first light-emitting units in the first light strip are arranged along the latitude lines of the display surface.

[0008] Preferably, the first display unit includes a mounting bracket, and a plurality of the first light strips are disposed on the mounting bracket.

[0009] Preferably, a second display module is provided at at least one pole of the display surface, the outer contour of the second display module projected on the plane passing through the equator of the spherical screen is circular, and the second display module includes a plurality of second light-emitting units arranged along the latitude lines of the display surface.

[0010] Preferably, a third display module is provided between the first display module and the second display module, and the outer contour of the projection of the third display module on the plane passing through the equator of the spherical screen is circular.

[0011] Preferably, the third display module includes a plurality of second light strips arranged along the latitude lines, the second light strips extending along the longitude lines of the spherical screen.

[0012] Preferably, the first light-emitting unit includes N display components; The display component includes a plurality of light-emitting elements arranged in a ring along a reference circumferential direction, which is either clockwise or counterclockwise. Along the direction away from the center of the ring, the Nth display component is located outside the (N-1)th display component. The light-emitting element includes multiple LED beads with different emitting colors, and the emitting colors of the multiple LED beads are arranged sequentially along the tangent of the ring.

[0013] Preferably, the center of at least one of the light-emitting elements in the (N-1)th display component and the center of one of the light-emitting elements in the Nth display component are located in the same radial direction of the annulus.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The spherical screen includes a display surface that is spherical or a portion of a sphere. Multiple first display modules are provided on the display surface. The first display modules are positioned between two adjacent reference curves. The reference curves are curves extending from the poles of the display surface to the equator. Each first display module includes multiple first display units arranged along the extension direction of the reference curve. Each first display unit is polygonal and includes multiple first light strips. The first light strips have a large bending capacity, which can better fit the surface of the sphere, making the display surface of the spherical screen closer to the sphere, avoiding the problem of uneven transition of the display surface, and resulting in a better display effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall shape of the spherical screen of the utility model. Figure 2 This is a schematic diagram showing the unfolding of the reference curve of the spherical screen of the utility model on the equatorial plane of the body; Figure 3 This is a schematic diagram of the layout of the first display module of the spherical screen of the utility model. Figure 4 This is a schematic diagram of the structure of the first display unit of the spherical screen of the utility model; Figure 5 This is a schematic diagram of the structure of the second display module of the spherical screen of the utility model; Figure 6 This is a schematic diagram of the structure of the third display module of the spherical screen of the utility model; Figure 7 This is a schematic diagram of the structure of the first light-emitting unit of the spherical screen of the utility model; In the diagram: 1. Spherical screen; 10. Display surface; 11. Reference curve; 12. Meridian; 13. Parallel; 20. First display module; 21. First display unit; 211. First light strip; 211a. First substrate; 211b. First light-emitting unit; 211b1. Light-emitting body; 211b2. LED bead; 30. Mounting bracket; 40. Second display module; 41. Second light-emitting unit; 50. Third display module; 51. Second light strip. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Combination Figures 1 to 7 As shown, the spherical screen 1 of this utility model is schematically displayed, including a display surface 10 that is spherical or partially spherical, such as... Figure 1 and Figure 2The surface of the display surface 10 has multiple curves extending from the poles of the display surface 10 to the equator. These curves are denoted as reference curves 11. Multiple reference curves 11 are provided. A plane is drawn through the two poles of the sphere, and the projection of the reference curve 11 onto this plane is arc-shaped. Therefore, the reference curve 11 is not a meridian. Multiple first display modules 20 are provided on the display surface 10. Each first display module 20 is positioned between two adjacent reference curves 11. The width of each first display module 20 extends from the poles of the display surface 10 to the equator. The direction gradually increases, causing the reference curve 11 to be inclined to the meridian 12 of the display surface 10. The first display module 20 includes a plurality of first display units 21 arranged along the extension direction of the reference curve 11. The first display units 21 are polygonal, so that in the low latitude region of the display surface 10, such as within latitude 60°, the shape enclosed by two adjacent parallels 13 (such as the 30°N and 40°N) and two adjacent reference curves 11 is similar to a parallelogram. The first display units 21 are provided in the above-mentioned parallelogram. The first display unit 21 includes a plurality of first light strips 211. The first light strips 211 have a large bending capacity and can fit more closely to the surface of the spherical display surface 10, so that the display surface of the spherical screen 1 is closer to the sphere.

[0020] The first display unit 21 is a near-parallelogram shape. Along the extension direction of the reference curve 11, the first display unit 21 has an upper edge and a lower edge parallel to the latitude line of the display surface 10. The length of the upper edge is 90% to 100% of the length of the lower edge. Since the reference curve 11 extends from the pole to the equator, and the width between two adjacent reference curves 11 gradually increases, the length of the upper edge of the first display unit 21 can be less than or equal to the length of the lower edge, thereby adapting to the change in width between two adjacent reference curves 11.

[0021] Multiple first light strips 211 are arranged at intervals along the upper edge to the lower edge, and each first light strip 211 includes multiple sub-light strips of different lengths. When the length of the upper edge of the first display unit 21 is less than the length of the lower edge, the total length of the first light strip 211 gradually increases from the upper edge to the lower edge. Sub-light strips of various lengths can be designed and spliced ​​together as needed to form the first light strip 211.

[0022] Specifically, when the spherical screen 1 is a complete sphere, the display surface 10 is symmetrically arranged with respect to the plane passing through the equator. This makes the structural design of the southern and northern hemispheres of the display surface 10 consistent. Only one hemisphere needs to be designed to obtain a complete spherical screen design, which facilitates the design and manufacturing of the spherical screen 1.

[0023] In the extension direction of the reference curve 11, there is a gap between two adjacent first light strips 211. This gap allows light to pass through and ventilation to improve the heat dissipation performance of the spherical screen 1 and enable long-term stable operation.

[0024] The first display unit 21 includes a mounting frame 30, on which multiple first light strips 211 are mounted. The mounting frame 30 and the first light strips 211 are inclined. In practical applications, a steel frame can be first set up on the ground where the spherical screen 1 is erected, and then the mounting frame 30 can be installed on the steel frame using existing screws, bolts and other fasteners. The mounting frame 30 supports multiple first light strips 211. When a first light strip 211 fails, the damaged first light strip 211 can be replaced individually, reducing maintenance costs.

[0025] Among them, such as Figure 3 and Figure 4 The first light strip 211 includes a first substrate 211a disposed on the surface of the display surface 10 and a plurality of first light-emitting units 211b disposed on the first substrate 211a. In this embodiment, the first substrate 211a is elongated and is mounted on the mounting bracket 30. The plurality of first light-emitting units 211b in the first light strip 211 are arranged along the latitude line 13 of the display surface 10. The first light strip 211 with this structure can minimize the impact on the display effect of the entire spherical screen 1 when damaged. In particular, when one of the first light strips 211 is damaged, the image displayed on the spherical screen 1 only shows a black line extending along the latitude line 13 of the display surface 10. Preferably, in two adjacent first light strips 211, the center of one of the first light-emitting units 211b in one first light strip 211 and the centers of two first light-emitting units 211b in the other first light strip 211 form an equilateral triangle.

[0026] like Figure 7 The first light-emitting unit 211b includes N display components. Each display component includes multiple light-emitting elements 211b1 arranged in a ring along a reference circumferential direction, which can be clockwise or counterclockwise. Along a direction away from the center of the ring, the Nth display component is located outside the (N-1)th display component. Each light-emitting element 211b1 includes multiple LED beads 211b2 with different emitting colors, and the emitting colors of the multiple LED beads 211b2 are arranged sequentially along the tangential direction of the ring. The center of at least one light-emitting element 211b1 in the (N-1)th display component and the center of one light-emitting element 211b1 in the Nth display component are located in the same radial direction of the ring. This structure is beneficial for improving the light mixing effect of the first light-emitting unit 211b.

[0027] Furthermore, such as Figure 5At least one pole of the display surface 10 is provided with a second display module 40. In this embodiment, the second display module 40 is provided at both the south and north poles of the display surface 10. The outer contour of the projection of the second display module 40 on the plane passing through the equator of the spherical screen 1 is circular, and the center of the second display module 40 coincides with the pole of the display surface 10. The second display module 40 includes a plurality of second light-emitting units 41 arranged along the latitude line 13 of the display surface 10 to realize the display of the image at the pole of the display surface 10. The structure of the second light-emitting unit 41 can be the same as or different from that of the first light-emitting unit 211b; if different, the second light-emitting unit 41 can be an LED light-emitting lamp bead.

[0028] like Figure 6 A third display module 50 is provided between the first display module 20 and the second display module 40. The outer contour of the third display module 50 projected onto the plane passing through the equator of the spherical screen 1 is annular, and the center of the annular shape of the third display module 50 is on the same axis as the center of the second display module 40. The third display module 50 includes a plurality of second light strips 51 arranged along the parallels of latitude, and the second light strips 51 extend along the meridians 12 of the spherical screen. The structure of the second light strips 51 is similar to that of the first light strip 211, the main difference being the length. Therefore, the second light strips also include first light-emitting units 211b.

[0029] In summary, the spherical screen 1 includes a display surface 10 that is spherical or a portion of a sphere. Multiple first display modules 20 are disposed on the display surface 10. Each first display module 20 is positioned between two adjacent reference curves 11. The reference curves 11 are curves extending from the poles of the display surface 10 towards the equator. Each first display module 20 includes multiple first display units 21 arranged along the extension direction of the reference curves 11. Each first display unit 21 is polygonal and includes multiple first light strips 211. The first light strips 211 have a large bending capacity, enabling them to better conform to the surface of the sphere 1, thus making the display surface 10 of the spherical screen 1 closer to the spherical surface, avoiding the problem of uneven transition of the display surface 10, and resulting in a better display effect.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spherical screen, characterized in that, Includes a display surface that is spherical or a portion thereof; The display surface is provided with a plurality of first display modules, and the first display modules are disposed between two adjacent reference curves, wherein the reference curves are curves extending from the poles of the display surface to the equator; The first display module includes a plurality of first display units arranged along the extension direction of the reference curve, wherein the first display units are polygonal; The first display unit includes a plurality of first light strips.

2. The spherical screen according to claim 1, characterized in that, The first display unit is in the shape of a parallelogram. Along the extension direction of the reference curve, the first display unit has an upper edge and a lower edge parallel to the latitude line of the display surface. The length of the upper edge is 90% to 100% of the length of the lower edge.

3. The spherical screen according to claim 2, characterized in that, Multiple first light strips are arranged at intervals along the upper edge to the lower edge, and each first light strip includes multiple sub-light strips of different lengths.

4. The spherical screen according to claim 1, characterized in that, The first light strip includes a first substrate disposed on the display surface and a plurality of first light-emitting units disposed on the first substrate. The first substrate is strip-shaped, and the plurality of first light-emitting units in the first light strip are arranged along the latitude lines of the display surface.

5. The spherical screen according to claim 1, characterized in that, The first display unit includes a mounting bracket, and a plurality of the first light strips are disposed on the mounting bracket.

6. The spherical screen according to claim 1, characterized in that, At least one pole of the display surface is provided with a second display module. The outer contour of the projection of the second display module on the plane passing through the equator of the spherical screen is circular. The second display module includes a plurality of second light-emitting units arranged along the latitude lines of the display surface.

7. The spherical screen according to claim 6, characterized in that, A third display module is provided between the first display module and the second display module. The outer contour of the projection of the third display module on the plane passing through the equator of the spherical screen is circular.

8. The spherical screen according to claim 7, characterized in that, The third display module includes a plurality of second light strips arranged along the latitude lines, the second light strips extending along the longitude lines of the spherical screen.

9. The spherical screen according to claim 4, characterized in that, The first light-emitting unit includes N display components; The display component includes a plurality of light-emitting elements arranged in a ring along a reference circumferential direction, which is either clockwise or counterclockwise. Along the direction away from the center of the ring, the Nth display component is located outside the (N-1)th display component. The light-emitting element includes multiple LED beads with different emitting colors, and the emitting colors of the multiple LED beads are arranged sequentially along the tangent of the ring.

10. The spherical screen according to claim 9, characterized in that, The center of at least one of the light-emitting elements in the (N-1)th display component and the center of one of the light-emitting elements in the Nth display component are located in the same radial direction of the annulus.

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