Curved Projection Screen Elastic Substrate Logistics
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Solution Overview
Problem
Existing three-dimensional curved projection screens face challenges in logistics due to rigid material requirements, necessitating segmentation for transportation, which results in visible seams and labor-intensive on-site assembly, and often require additional coating steps.
Innovation Solution
A one-piece seamless curved substrate with elastic deformation capabilities, featuring truncations on opposing edges to allow bending and reduced stress, enabling easy transportation and installation, along with pre-coating and magnetic alignment aids for efficient setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If rigid material is used to maintain smooth surface quality, then image projection quality is improved, but logistics and transportation become difficult due to inability to bend or roll
Solution Approach 1:
The screen transitions from a static rigid structure to a dynamic flexible structure that can adapt its shape. The flexible material allows the screen to be bent and rolled during transportation, then deployed into a smooth curved surface for projection, resolving the contradiction between rigidity for image quality and flexibility for logistics.
Solution Approach 2:
The material properties are changed from rigid to flexible, fundamentally altering the physical state of the screen. This parameter change enables the screen to maintain surface smoothness when deployed while also being capable of bending and rolling for transportation, thus resolving the contradiction between image quality and logistics flexibility.
2Adaptability or versatility
If screen is divided into segments for transportation, then logistics become easier, but visible seams appear and assembly becomes labor-intensive
Solution Approach 1:
The screen is designed as a single continuous flexible piece rather than multiple rigid segments. This eliminates the need for complex assembly procedures and visible seams while maintaining the ability to be rolled and transported, thus resolving the contradiction between transportation capability and assembly complexity.
Solution Approach 2:
Multiple segments are merged into a single seamless flexible substrate. This combining eliminates the seams and assembly requirements while the flexible nature of the unified structure allows it to be rolled for transportation, resolving the contradiction between transportation capability and assembly complexity.
3Manufacturing precision
If additional coating and painting is applied to conceal seams, then image quality is improved, but installation time and labor cost increase
Solution Approach 1:
The screen is provided as a pre-coated seamless substrate with the desired surface properties already applied during manufacturing. This preliminary action eliminates the need for on-site coating and painting, thus reducing installation time and labor costs while maintaining surface uniformity for image quality.
4Adaptability or versatility
If screen is made flexible to ease transportation, then logistics become easier, but maintaining smooth bulge-free surface becomes difficult
Solution Approach 1:
The screen utilizes dynamic material properties that allow flexible bending during transportation but maintain surface stability when deployed. The flexible material is engineered to resist deformation under tension while allowing controlled bending, thus resolving the contradiction between bending capability and surface flatness.
Solution Approach 2:
A composite flexible material is used that combines the properties of flexibility for bending with sufficient rigidity to maintain a smooth bulge-free surface when deployed. This composite structure enables both transportation flexibility and image projection quality, resolving the contradiction between bending capability and surface flatness.
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 allows for seamless, high-quality image projection with reduced logistical constraints, simplified installation, and cost-effective on-site preparation, ensuring a smooth and bulge-free surface without visible seams.
Implementation Method 1
the edge of the screen has been shaped so that its deformation during the above mentioned degree of bending is elastic
Data Source
Figure 1~2
Figure 3~5b
Figure 6~8
AI summary
A curved projection screen is described comprising a one-piece seamless substrate having a three-dimensional curvature. Said screen is arranged for being bent to a certain degree around one of its axes so that the smallest deformation of the screen is elastic, wherein the edge of said screen has been shaped so that its deformation during the above mentioned degree of bending is also elastic.