Flexible Display Shape Memory Alloy Support Structure
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Solution Overview
Problem
Flexible display substrates are prone to cracking or damage due to over-bending, which affects their characteristics and service life, and existing support structures are complex and occupy significant space, making it difficult to maintain the display in unwrapped states without special support.
Innovation Solution
A flexible display design incorporating a support body made of shape memory alloy materials, which can be warped and unwrapped in different directions, is integrated into the substrate, providing structural support in both wrapped and unwrapped states, and is connected via a hinge mechanism with an arm belt for enhanced flexibility and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible substrate is used to enable winding and flexibility, then portability and convenience are improved, but the substrate is easily over bent causing crack or damage
Solution Approach 1:
A support body structure is pre-configured within the flexible display body to provide proactive support during wrapping and unwrapping operations. This preliminary structural preparation prevents over-bending and crack formation before they occur, rather than reacting after damage happens.
Solution Approach 2:
The support body is constructed using composite material structures that combine flexibility with enhanced strength. This allows the display to maintain its flexible nature while possessing superior resistance to cracking and damage during bending operations.
2Reliability
If a support structure is added to prevent over-bending, then reliability is improved, but device complexity increases
Solution Approach 1:
The support body structure is merged with the flexible display body as an integrated component rather than a separate addition. This combining of functions reduces overall device complexity while maintaining the protective support function, as the support structure becomes part of the display's inherent architecture.
Solution Approach 2:
The support body structure serves multiple functions simultaneously: it provides mechanical support during wrapping, prevents over-bending damage, and maintains structural integrity during unwrapping. This multi-functionality reduces the need for additional separate components, thereby reducing overall device complexity.
3Stability of the object's composition
If a support structure is added to maintain unwrapped state, then stability is improved, but the structure occupies significant space
Solution Approach 1:
The support body is designed as a thin, flexible structure that can be integrated within the display body without occupying significant volume. This thin-film approach provides necessary structural support for maintaining unwrapped state while minimizing the space required, allowing the display to remain compact and portable.
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 solution effectively prevents cracking and damage from over-bending, prolongs the service life of the display, and allows the flexible display to maintain an unwrapped state without additional support, enabling convenient use and improved durability.
Implementation Method 1
the support body includes material having shape memory function
Data Source
AI summary
A flexible display (5) and a flexible display device are disclosed. The flexible display (5) includes a flexible display body on which a support body structure (3) is configured to provide supporting when the flexible display body is in wrapped state or un-wrapped state. The flexible display (5) and display device can prevent over-bending of a display substrate by the strength of the substrate, and can also automatically keep the display substrate flat when unwrapped, and prevent damage of the display substrate due to the over bending, and can also be worn on wrist conveniently.