Flexible Display Support Structure With Rolling Anti-Crease Hinge
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Solution Overview
Problem
Folding flexible screens often result in creases due to the separation of the screen and hinge, leading to undesirable performance.
Innovation Solution
A display device design featuring a flexible screen divided into three main bodies with a support structure and foldable structure that allows the first and second support portions to fold relative to each other through the foldable structure, which rolls on the third main body, reducing tensile stress and preventing creases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the flexible screen is attached to a support plate with a hinge, then the folding function is achieved, but the flexible screen separates from the hinge during folding causing creases and undesirable performance
Solution Approach 1:
A rollable fabric layer is introduced as an intermediary between the flexible screen and the hinge structure. This fabric layer rolls during the folding process, maintaining continuous contact and support between the screen and hinge, thereby preventing screen-hinge separation and crease formation while preserving the folding function
Solution Approach 2:
The support structure transitions from a static rigid connection to a dynamic rollable mechanism. The fabric layer can dynamically adjust its rolling state during folding, providing adaptive support that maintains screen-hinge contact throughout the folding motion, thus preventing creases while enabling folding operation
2Ease of operation
If the hinge expands and contracts to fold the flexible screen, then the folding motion is achieved, but the flexible screen and hinge separate to a certain extent causing creases
Solution Approach 1:
The rollable fabric layer serves as a mediator that fills the gap between the expanding/contracting hinge and the flexible screen. As the hinge moves, the fabric rolls to maintain continuous contact, ensuring the screen follows the hinge motion without separation or crease formation
Solution Approach 2:
The fabric layer is pre-positioned to cover the potential separation gap between the screen and hinge. During folding, this pre-positioned fabric is ready to roll and maintain contact, preventing creases before they can form by continuously supporting the screen throughout the hinge's expansion and contraction motion
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 design enhances the folding flexibility and performance of the flexible screen by minimizing friction and contact stress, thereby protecting the screen from damage and improving its service life.
Implementation Method 1
at least a portion of the foldable structure is in contact with the third main body and configured to roll relative to the third main body
Data Source
AI summary
A display device is provided in the present disclosure. The display device includes a flexible screen, a support structure, and a foldable structure. The flexible screen includes a first main body, a second main body, and a third main body connected to each of the first main body and the second main body. The support structure includes a first support portion configured to support the first main body and a second support portion configured to support the second main body. The foldable structure overlaps the third main body, and the first support portion and the second support portion are connected to each other through the foldable structure. During a folding process of the display device, at least a portion of the foldable structure is in contact with the third main body and configured to roll relative to the third main body.