Foldable Hinge Module With Wing Plate to Reduce Display Creasing
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Solution Overview
Problem
Conventional foldable electronic devices face challenges in reducing creases and delamination issues in the display when folded, particularly with dumbbell-shaped hinge modules that occupy space and limit component arrangement.
Innovation Solution
A hinge module design that includes a rotating member with convex rails and a wing plate, allowing for a dumbbell-shaped configuration that reduces creases and delamination by providing a space for the display to bend while supporting it in both folded and unfolded states, while also expanding the area for component arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dumbbell-shaped hinge module is used, then creases and delamination are reduced, but the hinge module occupies space and limits component arrangement
Solution Approach 1:
The hinge module is divided into multiple functional components including a first rotating member with convex rails, a second rotating member, a reciprocating element, and a wing plate. This segmentation allows each component to perform specific functions while collectively achieving the dumbbell-shaped configuration that reduces display creases and delamination.
Solution Approach 2:
The hinge module utilizes multi-axis rotation mechanisms where the first rotating member rotates about a first axis and the second rotating member rotates about a second axis. This dimensional approach creates the dumbbell-shaped configuration that provides space for display bending while maintaining structural integrity, effectively resolving the space occupation issue.
2Reliability
If the hinge module provides space for display bending, then creases and delamination are reduced, but the operational structure becomes more complex
Solution Approach 1:
Multiple functional elements are merged into an integrated hinge module structure. The first rotating member, second rotating member, reciprocating element, and wing plate are combined to work together, providing display bending space while maintaining a unified operational structure that manages complexity.
Solution Approach 2:
The hinge module components serve multiple functions: the convex rails guide rotation and provide bending space, the reciprocating element enables linear motion, and the wing plate supports the display. This multi-functionality reduces the need for separate components, managing overall structural complexity.
3Reliability
If the hinge module supports the display in both folded and unfolded states, then display integrity is improved, but the structural complexity increases
Solution Approach 1:
The hinge module employs dynamic rotation mechanisms where the first rotating member and second rotating member can rotate about different axes depending on the folding state. This dynamic adaptability allows the structure to support the display in both folded and unfolded states while managing structural complexity through motion-based adaptation.
Solution Approach 2:
The reciprocating element acts as an intermediary between the rotating members and the wing plate, enabling smooth transitions between folded and unfolded states. This intermediary component facilitates the complex structural requirements while maintaining display integrity throughout the motion range.
Data Source
AI summary
A foldable electronic device is provided. The foldable electronic device includes a first housing, a second housing, a hinge module rotatably coupling the first housing and the second housing about a folding axis, and a flexible display. The hinge module includes a first rotating member, a first arm member configured to rotate about an axis different from the first axis and the second axis in response to rotation about the first axis, a first connecting member configured to connect the first rotating member and the first arm member, and a first wing plate positioned to cover at least a portion of the first rotating member and the first arm member and configured to rotate according to a folding operation of the foldable electronic device.