Foldable Display Hinge Structure for Uniform Curvature Support
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Solution Overview
Problem
The challenge is to design a rotation shaft structure that enhances the service life and reliability of flexible displays in foldable electronic devices by achieving specific curvature deformation and uniformity during folding.
Innovation Solution
The proposed rotation shaft structure includes a main shaft assembly and symmetrically disposed first and second folding assemblies. Each folding assembly consists of a rotation assembly, a support plate, and a housing mounting bracket, allowing for rotational connections and sliding movements to form a triangle-like display accommodation space that supports the flexible display without extrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a larger display is used to provide diversified functions, then the display area increases, but the overall structure becomes larger and less portable
Solution Approach 1:
The display is divided into two separate housings (first housing and second housing) that can be folded relative to each other. This segmentation allows the large display area to be achieved while maintaining a compact form factor when folded, resolving the contradiction between display size and portability.
2Ease of operation
If the display is frequently folded to enable portability, then the device becomes easy to carry, but the service life of the display decreases
Solution Approach 1:
A rotation shaft structure with support plates and folding assemblies is introduced as an intermediary mechanism between the display and housings. This mechanism controls the folding process to achieve specific curvature deformation, preventing damage to the display during frequent folding operations and extending its service life.
Solution Approach 2:
The rotation shaft structure and support plates are designed to provide protective support to the display before folding occurs. By establishing specific curvature deformation in advance during the folding process, the display is protected from excessive stress and damage, cushioning against potential harm from frequent folding.
3Reliability
If the rotation shaft structure is designed to achieve specific curvature deformation, then the service life of the display is prolonged, but the device complexity increases
Solution Approach 1:
The rotation shaft structure is segmented into multiple functional components (main shaft assembly, first folding assembly, second folding assembly, support plates, housing mounting brackets). Each component has a specific function, and their coordinated operation achieves the desired curvature deformation while distributing the complexity across modular elements.
Data Source
AI summary
The rotation shaft structure includes a main shaft assembly, and two folding assemblies that are symmetrically disposed with respect to the main shaft assembly. The two folding assemblies may rotate toward or against each other relative to the main shaft assembly. When the folding assembly is specifically disposed, the folding assembly includes a rotation assembly, a support plate, and a housing mounting bracket. The rotation assembly is rotationally connected to the main shaft assembly. The support plate is rotationally connected to the housing mounting bracket and slidably connected to the rotation assembly.