Flexible Display Panel Roller Stabilization Mechanism
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Solution Overview
Problem
Existing display devices face challenges in maintaining structural rigidity to prevent sagging and torsion, especially when using flexible display panels that need to be wound or unwound from a roller.
Innovation Solution
A display device design that includes a flexible display panel, a panel roller, first and second frames, a bearing, a disk wheel, and stable rollers, which collectively provide structural rigidity and a driving mechanism for stable rotation and unwinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display panel is used to enable winding and unwinding, then adaptability and ease of operation are improved, but structural rigidity deteriorates causing sagging and torsion
Solution Approach 1:
The support structure is divided into multiple segments including a first support structure at one end of the panel roller and a second support structure at the other end. This segmentation allows each support structure to independently provide stability to different portions of the flexible display panel, preventing sagging and torsion while maintaining the overall flexibility needed for winding operations.
Solution Approach 2:
The patent employs a composite support system combining rigid support structures (frames with bearings and disk wheels) with the flexible display panel. The rigid support structures provide necessary structural rigidity to prevent deformation, while the flexible panel maintains its winding capability. This composite approach resolves the contradiction between flexibility and rigidity.
2Area of stationary object
If the panel roller is made long to accommodate large display panels, then area is improved, but stability deteriorates due to increased sagging and torsion
Solution Approach 1:
The support system is segmented into a first support structure and a second support structure positioned at opposite ends of the long panel roller. This segmentation distributes the support load across multiple points along the length of the roller, preventing mid-span sagging and reducing torsional stresses that would otherwise occur in a long, unsupported structure.
Solution Approach 2:
The patent introduces support structures in the vertical dimension (above and below the panel roller) rather than only along the length. The first and second support structures extend in the vertical direction, providing dimensional stability to the long panel roller and preventing both sagging and torsion through three-dimensional structural reinforcement.
3Ease of operation
If minimal support structures are used to maintain flexibility, then ease of operation is improved, but reliability deteriorates due to instability
Solution Approach 1:
The support structures are designed to be separable and removable. The first and second support structures can be detached from the panel roller when not in use, allowing the flexible display panel to be easily wound and unwound without permanent structural constraints. This extraction approach maintains ease of operation while providing reliability when the support structures are engaged.
Solution Approach 2:
The support system is designed with dynamic characteristics, allowing it to adapt between a supported state (when the display panel needs stability) and an unsupported state (when winding or unwinding is required). The bearing and disk wheel assembly can rotate freely to accommodate winding operations while providing stability when the display panel is in use.
Data Source
AI summary
A display device is disclosed. The display device of the present disclosure may comprise: a flexible display panel; a panel roller which elongates and on or from which the display panel is wound or unwound; a first frame positioned to be adjacent to one end of the panel roller; a second frame positioned to be adjacent to the other end of the panel roller and faces the first frame with respect to the panel roller; a bearing coupled to the one end of the panel roller and fixed to the first frame; a disk wheel adjacent to the other end of the panel roller and coupled to the panel roller while intersecting a rotary shaft of the panel roller; a first stable roller coming into contact with the disk wheel; and a second stable roller coming into contact with the disk wheel.