Polyhedral LED Display Screen Magnetic Cabinet Assembly
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Solution Overview
Problem
Existing spherical LED display screens have issues with incomplete coverage due to end points, complex structure design, and increased installation difficulties due to varying shapes and high design costs.
Innovation Solution
A polyhedral LED display screen composed of multiple cabinet main frames with flexible PCBs, where each frame is magnetically connected and forms a regular dodecahedron structure, eliminating end points and simplifying installation with uniform polygon shapes and through holes for screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sphere is divided into two hemispheres and then each hemisphere is divided longitudinally according to multiple latitudes, then the spherical display screen can be constructed, but there will be end points that cannot be completely covered by LED modules, affecting display effect
Solution Approach 1:
The spherical display screen is segmented into multiple identical cabinet main frames, each forming a regular polygon (e.g., regular pentagon). These standardized segments are arranged to form a polyhedral structure (such as regular dodecahedron) that approximates a sphere, eliminating the endpoint problem while maintaining structural regularity and simplifying the design.
2Adaptability or versatility
If each hemisphere is divided longitudinally according to multiple latitudes, then the spherical cabinet can be formed, but shapes of the LED modules become different, greatly increasing design cost and installation difficulty
Solution Approach 1:
The patent employs homogeneous cabinet main frames where each unit is identical in shape and structure (regular polygons). This homogeneity ensures that all LED modules have the same shape and configuration, greatly simplifying the design process, reducing design costs, and making installation much easier as standardized components can be uniformly manufactured and installed.
Solution Approach 2:
Each cabinet main frame is designed as a universal, standardized unit that can be repeatedly used throughout the spherical structure. The identical polygonal design allows each module to serve the same function and be installed in the same manner, creating a universal building block approach that reduces both design complexity and installation difficulty.
3Area of stationary object
If the spherical cabinet is assembled with different shaped LED modules, then coverage can be achieved, but the installation difficulty is greatly increased
Solution Approach 1:
The display surface is segmented into multiple identical polygonal cabinet main frames that are systematically arranged to form the spherical structure. This segmentation into uniform units eliminates the need for custom-shaped modules, allowing standardized installation procedures to be applied throughout the entire structure.
Solution Approach 2:
By using homogeneous cabinet main frames with identical polygonal shapes, the patent ensures that all LED modules are uniform in form. This homogeneity dramatically simplifies installation as workers can use the same installation procedures for every module without needing to adapt to varying shapes, thereby reducing installation difficulty while maintaining complete display surface coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides complete coverage, reduces design complexity, and facilitates easier assembly and disassembly, enhancing the display effect and practical performance by eliminating end points and simplifying the installation process.
Implementation Method 1
an inner side of the flexible PCB facing towards the cabinet main frame is magnetically connected to the cabinet main frame
Data Source
AI summary
A polyhedral LED display screen is provided and includes multiple cabinet main frames. Each the cabinet main frame is formed with an accommodating cavity. A side of each cabinet main frame is provided with a flexible PCB, an outer side of the flexible PCB facing away from the cabinet main frame is disposed with LED lamp beads, an inner side of the flexible PCB facing towards the cabinet main frame is magnetically connected to the cabinet main frame, and the cabinet main frames are connected to each other to form a regular dodecahedron sphere. The multiple cabinet main frames can be completely covered by the flexible PCBs, a missing display at an end point in the prior art is eliminated, design numbers and complexities of the cabinet main frames and the flexible PCBs are reduced, and an installation of the cabinet main frames becomes more convenient.