Foldable Display Hinge Assembly for Inner and Outer Folding Control
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Solution Overview
Problem
Current foldable display devices face challenges in simultaneously controlling the curvature and trajectory of the folding section, particularly when using both inner and outer folding hinges, making it difficult to commercialize these mechanisms.
Innovation Solution
A display device with a folding hinge unit that includes a plurality of chain hinges and an X hinge, allowing for both inner and outer folding operations, where the chain hinges are rotatable and the X hinge controls the folding trajectory, enabling smooth folding and unfolding with constant curvature and trajectory control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both inner folding hinge and outer folding hinge are used, then folding functionality is improved, but control of curvature and trajectory becomes difficult
Solution Approach 1:
The patent combines the inner folding hinge and outer folding hinge into a single integrated hinge mechanism. This unified structure integrates the folding and unfolding functions that were previously separated, allowing the mechanism to perform both inner and outer folding operations while simplifying the control system. The merged design eliminates the need for separate control systems for each folding type, directly resolving the contradiction between enhanced adaptability and increased control complexity.
Solution Approach 2:
The integrated hinge mechanism is designed to perform multiple functions: it can execute both inner folding (where the display panel folds inward) and outer folding (where the display panel folds outward). This multi-functional design allows a single mechanism to replace what would traditionally require two separate hinge systems, thereby improving folding versatility while maintaining manageable control complexity through unified trajectory control.
2Adaptability or versatility
If separate inner and outer folding hinges are used, then folding versatility is improved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the previously separate inner and outer folding hinge assemblies into a single integrated hinge unit. This consolidation reduces the total number of components that need to be manufactured and assembled, simplifying the manufacturing process. The integrated design allows for standardized production of a single hinge type that can handle both folding modes, rather than requiring separate manufacturing lines for inner and outer hinges.
Solution Approach 2:
While merging the hinge systems, the patent employs segmentation within the integrated structure by dividing the hinge into multiple chain hinges connected in sequence. This segmentation allows each individual hinge unit to be manufactured using standardized processes, while the overall assembly achieves the versatility of both inner and outer folding capabilities. The modular segmented design facilitates easier manufacturing and assembly compared to a fully integrated monolithic structure.
3Adaptability or versatility
If multiple chain hinges are used, then folding flexibility is improved, but structural complexity increases
Solution Approach 1:
The patent divides the hinge system into multiple identical chain hinges connected in sequence, where each hinge unit has the same standardized structure. This segmentation approach allows the system to achieve high folding flexibility and multiple folding modes (inner and outer folding) while maintaining relatively simple individual components. The repetitive modular structure reduces design complexity compared to a single complex hinge, as each segment can be designed and manufactured independently using the same template.
Data Source
AI summary
Disclosed is a display device including first and second set frames arranged adjacent to each other, a panel arranged on the first and second set frames, and a folding hinge unit arranged between the first set frame and the second set frame. The folding hinge unit includes a plurality of chain hinges arranged between the first and second set frames and configured to fold the first and second set frames inward and outward, and an X hinge including first and second connection chains coupled to the chain hinges and configured to control a folding trajectory of the chain hinges.