Flexible Display Panel Light Guide Folding Mechanism
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Solution Overview
Problem
Current foldable flexible displays face damage from high bending forces when the folding radius is small and compromised appearance when the radius is large, affecting both durability and display quality.
Innovation Solution
A flexible display panel design featuring sub-flexible panels connected by a folding mechanism, with a flexible light guide structure covering the mechanism to redirect light and facilitate folding without bending the panels, thereby reducing damage and enhancing display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the folding radius of the flexible display panel is set to be small, then the portability and compactness are improved, but the bending force increases and the panel is prone to damage
Solution Approach 1:
The flexible display panel is divided into multiple sub-flexible display panels that are connected through folding mechanisms. This segmentation allows the folding function to be isolated to specific regions (folding areas) rather than requiring the entire panel to bend, thereby reducing the bending force on individual panels while maintaining compactness when folded.
Solution Approach 2:
A folding mechanism is introduced as an intermediary component between sub-flexible display panels. This folding mechanism absorbs the bending stress and allows the panels to connect and disconnect or fold without subjecting the display panels themselves to high bending forces, thus protecting panel durability while enabling small folding radius.
2Strength
If the folding radius of the flexible display panel is set to be large, then the bending force on the panel is reduced, but the appearance and using effect of the whole display is affected
Solution Approach 1:
By segmenting the display into multiple sub-panels with dedicated folding mechanisms, the system can achieve a compact folded state (improving appearance) while the individual panels maintain larger effective bending radii (protecting durability). The segmented structure allows the folded dimensions to be small without requiring each panel to bend to a small radius.
3Device complexity
If the folding mechanism is exposed without coverage, then the structure is simple, but the display quality and visual effect are compromised
Solution Approach 1:
The flexible light guide structure serves multiple functions: it covers the folding mechanism (improving appearance), guides and redirects light from the sub-display panels (maintaining display quality), and integrates seamlessly with the folding mechanism (avoiding significant structural complexity). This multi-functionality resolves the contradiction between structural simplicity and display quality.
Solution Approach 2:
The flexible light guide structure acts as an intermediary component that bridges the folding mechanism and the display quality requirements. It covers the folding mechanism to hide it from view while simultaneously guiding light to ensure uniform illumination and visual quality, thus resolving the conflict between structural simplicity and display appearance.
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 prevents damage to the flexible display panels during folding, maintains display quality, and allows for a flat emission surface, improving both durability and visual performance.
Implementation Method 1
a flexible light guide structure that at least covers the folding mechanism... the flexible light guide structure is configured such that a portion of the light is then emitted out of a portion of the flexible light guide structure that corresponds to the folding mechanism
Data Source
AI summary
The present disclosure relates to a field of display device and provides a flexible display panel, a method of preparing the same and a flexible display device. The flexible display panel includes: at least two sub-flexible display panels, each two adjacent sub-flexible display panels being connected together through a folding mechanism therebetween, the flexible display panel further including a flexible light guide structure that at least covers the folding mechanism, the flexible light guide structure being configured to emit a portion of light emitted from each sub-flexible display panel out of a portion of the flexible light guide structure that corresponds to the folding mechanism.