Flexible Display Link Module for Screen Area and Durability
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Solution Overview
Problem
Flexible display devices with folding structures face challenges in implementing large screens due to complex structures, limited battery space, and reduced durability from unnecessary loads and misalignment of components, which can lead to damage from external forces.
Innovation Solution
A rolling-type mechanism with a link module that guides and fixes the bodies relative to each other, preventing them from moving closer or further apart, and limiting rotation to enhance durability and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a flexible display is drawn out to extend the screen area, then the screen size is increased, but the structure becomes complicated and battery installation space is restricted
Solution Approach 1:
The flexible display is rolled up and stored within the device body when not in use, similar to a nested doll structure. The display can be extended by unrolling it, providing a large screen area while maintaining a compact form factor when retracted, thus avoiding the need for complex mechanical structures.
Solution Approach 2:
The flexible display transitions from a static fixed structure to a dynamicrollable structure. The display can be rolled up and down along the longitudinal direction of the second body, allowing the screen area to be dynamically adjusted between large and compact states without complicating the overall device structure.
2Adaptability or versatility
If many components are provided to enable flexible display deformation, then the deformable characteristics are achieved, but the internal space is restricted and battery installation becomes difficult
Solution Approach 1:
The patent uses a flexible display that can be rolled up and down along the longitudinal direction of the second body. This flexible film structure enables deformable characteristics without requiring many rigid components, thereby preserving internal space for battery installation.
3Adaptability or versatility
If the flexible display is allowed to extend and contract freely, then various screen sizes are achieved, but unnecessary loads are applied reducing durability
Solution Approach 1:
The link module pre-establishes constraints to prevent excessive or misaligned movements of the first and second bodies. By limiting the relative movement to predetermined ranges, the system prevents unnecessary loads from being applied to the flexible display during extension and contraction, thereby protecting its durability while still allowing screen size variation.
4Area of stationary object
If the two bodies are spaced apart to extend the screen, then larger screen area is achieved, but the bodies may rotate misaligned reducing durability
Solution Approach 1:
The link module acts as an intermediary mechanism between the first and second bodies. It guides the relative movement and maintains proper alignment through constrained motion paths, preventing misaligned rotation even when the bodies are spaced apart for screen extension, thus protecting durability.
5Area of stationary object
If the two bodies are separated to allow flexible display extension, then screen area is increased, but internal components are vulnerable to external forces
Solution Approach 1:
The link module pre-establishes constraints that maintain proper spacing and alignment between the first and second bodies. This preliminary anti-action prevents excessive separation that would expose internal components to external forces, while still allowing sufficient extension for large screen area.
Data Source
AI summary
The present invention relates to a flexible display device comprising: a first body, a second body configured to be movable relative to the first body, a flexible display part disposed to be exposed to the front side of the first body and the back side of the second body, and a link module that guides the first body and second body to move relative to each other, wherein the link module fixes the first body and the second body to each other to prevent the first body and the second body from moving closer to or away from each other when the first body and the second body have been positioned to be spaced a pre-configured distance apart from each other.