Folding Display Apparatus with Dual Curvature Radius Support
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Solution Overview
Problem
Conventional display apparatuses lack the ability to efficiently change shapes for improved convenience and portability while maintaining a constant thickness across different folding modes, limiting their usability and user experience.
Innovation Solution
A display apparatus with a modular design featuring a folding region and non-folding regions, supported by a folding unit with joints and connection members that allow for multiple folding modes, including a first mode with a first radius of curvature and a second mode with a second radius of curvature, enabling flexible folding and unfolding configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display apparatus is designed to fold in multiple directions with different radii of curvature, then the convenience and portability are improved, but the device complexity increases due to the need for multiple bending axes and radius control mechanisms
Solution Approach 1:
The support member is divided into multiple joints (central joints and edge joints) that can independently control different regions of the folding apparatus. This segmentation allows each joint to manage specific bending operations, enabling complex folding patterns through coordinated simple units rather than a single complex mechanism
Solution Approach 2:
The apparatus transitions from a static flat-plate structure to a dynamic system that can adapt its shape through controlled bending. The joints enable the support member to dynamically change its configuration between unfolding mode, first mode (first radius of curvature), and second mode (second radius of curvature), allowing the system to respond to different operational requirements
2Adaptability or versatility
If the folding region is divided into multiple regions with different folding behaviors, then the functional versatility is improved, but the manufacturing precision requirements increase
Solution Approach 1:
Different regions of the folding apparatus are assigned different functional properties: the first region is configured to fold in both first and second bending directions, while the second region is configured to fold only in the first bending direction. This local differentiation allows each region to be optimized for its specific function, with the central joints managing the first region and edge joints managing the second region
3Ease of operation
If the support member uses a modular joint structure to enable flexible folding, then the ease of operation is improved, but the device complexity increases due to the number of joints and connection members
Solution Approach 1:
Multiple functional elements are merged into integrated components: the support member combines multiple joints and connection members into a unified folding structure that operates as a cohesive system. The central joints and edge joints work together with their respective connection members to achieve coordinated folding actions, reducing the need for separate control mechanisms for each joint
Data Source
AI summary
A display apparatus includes a display module and a support member disposed below the display module and supporting the display module. The display module includes a folding region and a plurality of non-folding regions adjacent to the folding region, and having a display surface for displaying an image. The display module is operated in a plurality of modes, and the plurality of modes includes a first mode in which the folding region has a first curvature radius and is folded in a first bending direction which surrounds a virtual first bending axis defined below the display module and a second mode in which the folding region has a second curvature radius and is folded in a second bending direction which surrounds a virtual second bending axis defined above the display module. The first curvature radius is greater than the second curvature radius.