Flexible Display Support Structure to Prevent Peeling and Buckling
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Solution Overview
Problem
Flexible displays in electronic devices face issues with peeling and buckling due to tensile and compressive stresses when bent or rolled, particularly in structures with multiple layers, leading to structural instability.
Innovation Solution
A supporting structure comprising a plurality of bars and a guide rail is used to restrain rotation and guide movement of the flexible display, preventing peeling and buckling by supporting the display layers and maintaining a predetermined gap between bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display is bent or rolled to enable compact storage, then portability is improved, but the display layers experience tensile and compressive stresses causing peeling and buckling
Solution Approach 1:
The supporting structure divides the flexible display into multiple segments using a plurality of bars arranged in parallel. Each bar acts as an independent support element that maintains the display layers in their respective positions during bending or rolling, preventing peeling and buckling while enabling compact storage.
Solution Approach 2:
The guide rail serves as an intermediary component between the bars and the housing. It guides the movement of the bars during sliding operations and maintains their relative positions, ensuring stable support for the flexible display layers while allowing the necessary motion for portability.
2Stability of the object's composition
If multiple bars are used to support the flexible display during bending, then structural stability is improved, but the complexity of the supporting structure increases
Solution Approach 1:
Multiple bars are combined with a common guide rail structure to form an integrated supporting system. The guide rail unifies the movement control of all bars, and the parallel arrangement of bars creates a distributed support structure that achieves high stability without requiring complex individual components for each bar.
Solution Approach 2:
The guide rail performs multiple functions: it guides the sliding movement of the bars, maintains their relative positions, and provides a unified structural reference. This multi-functionality reduces the need for additional components, thereby limiting the increase in overall structural complexity despite using multiple bars.
3Adaptability or versatility
If the flexible display is made with multiple layers to enhance functionality, then versatility is improved, but the display becomes more susceptible to peeling under stress
Solution Approach 1:
The supporting structure segments the display layers by positioning multiple bars in parallel between them. Each bar provides localized support to specific layers, maintaining their relative positions and preventing peeling even when the display is bent or rolled, thus protecting the multi-layer structure during operation.
Solution Approach 2:
The guide rail and bars form a flexible supporting framework that accommodates the bending and rolling of the multi-layer display without causing damage. The structure remains flexible enough to allow motion while providing rigid enough support to prevent peeling, protecting the thin film layers during dynamic operations.
Data Source
AI summary
An electronic device may include a first housing, a second housing configured to change a position relative to the first housing based on sliding of the first housing, a flexible display including a first area and a bendable or rollable second area extending from the first area, a supporting structure coupled with the flexible display to support at least a portion of the flexible display and including a plurality of bars, and a guide rail configured to guide a movement of the plurality of bars based on the sliding of the first housing. Each of the plurality of bars may include a frame and a header formed on an end of the frame. When the second area of the flexible display is bent or rolled, the headers of adjacent bars may be disposed to at least partially overlap each other. Each of the headers may include at least one pole at least partially received in the guide rail.