Foldable Display Mechanism Size Compensation
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Solution Overview
Problem
The mismatch between the mechanism and the display panel during the folding process of foldable display devices leads to size differences in outwardly and inwardly folding processes, hindering the development of these devices.
Innovation Solution
A foldable display device design that includes both outwardly and inwardly folding structures, with alternately disposed folding and flat areas, where the display panel and mechanism are fixedly connected by a fixing medium or magnetic film, allowing for slidable connections to compensate for size differences during folding, ensuring a consistent contact area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the mechanism is folded outwardly, then the outer surface area of the mechanism increases, but the mechanism protrudes over the display panel resulting in size mismatch
Solution Approach 1:
The mechanism is divided into multiple segments including outwardly folding areas and inwardly folding areas. The outwardly folding areas allow expansion while the inwardly folding areas compensate for the size increase, maintaining overall dimensional compatibility with the display panel throughout the folding process.
Solution Approach 2:
The mechanism employs asymmetric folding structures where different regions fold in opposite directions (outwardly and inwardly). This asymmetric design allows the mechanism to dynamically adjust its surface area while maintaining a consistent outer contour that matches the display panel dimensions.
2Area of moving object
If the mechanism is folded inwardly, then the outer surface area of the mechanism decreases, but the mechanism retracting results in size mismatch
Solution Approach 1:
The mechanism is divided into multiple segments including outwardly folding areas and inwardly folding areas. The outwardly folding areas allow expansion while the inwardly folding areas compensate for the size increase, maintaining overall dimensional compatibility with the display panel throughout the folding process.
Solution Approach 2:
The inwardly folding areas are pre-configured to fold in the opposite direction to compensate for the size reduction that would otherwise occur. This preliminary anti-action ensures that the mechanism maintains its outer dimensions matched to the display panel even when the overall structure is folded inwardly.
3Reliability
If the display panel and mechanism are fixedly connected, then the connection is stable, but the size differences during folding cannot be compensated
Solution Approach 1:
The connection between the display panel and mechanism transitions from fixed to dynamic. The mechanism includes both fixedly connected regions (for stability) and slidably connected regions (for adaptability). The slidable connections allow the mechanism to adjust its size during folding while maintaining reliable connection through magnetic attraction and friction.
4Adaptability or versatility
If the display panel and mechanism are slidably connected, then the size differences during folding can be compensated, but the connection stability is reduced
Solution Approach 1:
The connection system merges fixed connections and slidable connections into a unified structure. Fixed connections provide stable support in non-folding areas, while slidable connections enable size compensation in folding areas. Magnetic films and friction forces work together to maintain overall connection stability throughout the folding process.
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 design compensates for size differences between the display panel and mechanism during folding, maintaining a consistent size match and ensuring reliable connection and aesthetics throughout the folding process.
Implementation Method 1
the display panel and the mechanism are connected to each other by a magnetic film in the flat area located at a center portion of the display panel and the mechanism and in the folding area
Data Source
AI summary
Embodiments of the present disclosure provide a foldable display device comprising both an outwardly folding structure and an inwardly folding structure. Size differences generated in an outwardly folding process and an inwardly folding process can be compensated for each other by designing folding sizes of the structures, thereby achieving the purpose of matching the size of a mechanism and a display panel during folding process of the foldable display device.