Foldable Display Lifting Plate Mechanism for Wrinkle-Free Bending
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Solution Overview
Problem
Foldable flexible display panels often suffer from wrinkles and damage during the folding process due to the deformation required in the folding area, as existing folding devices fixively support the panel and restrict normal bending.
Innovation Solution
A folding device with a supporting plate, lifting plate, rotatable plates, transmission assembly, and elastic members that allow the flexible display panel to fold or unfold smoothly by adjusting the position of the lifting plate to accommodate bending, preventing damage and wrinkles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a folding device with fixed support is used for flexible display panel, then the panel can be supported during folding, but wrinkles or damages occur easily in the folding area
Solution Approach 1:
The lifting plate is designed to move dynamically between a lifting position and a supporting position. During folding, it moves to the supporting position to provide support; during unfolding, it moves to the lifting position to avoid contact. This dynamic adjustment prevents wrinkles and damages while maintaining panel support capability.
Solution Approach 2:
The lifting plate acts as an intermediary between the supporting plate and the flexible display panel. It mediates the interaction by selectively making contact with the panel only when needed (during folding), thereby preventing harmful effects while maintaining necessary support.
2Ease of operation
If the lifting plate is fixed to the supporting plate, then the structure is simple, but the flexible display panel cannot bend normally during folding
Solution Approach 1:
The lifting plate is made movable relative to the supporting plate through a transmission assembly. This dynamic configuration allows the lifting plate to adjust its position based on whether the panel is folding or unfolding, enabling normal bending without requiring a complex fixed structure.
Solution Approach 2:
The folding device is segmented into movable components (lifting plate, transmission assembly) and fixed components (supporting plate). This segmentation allows different parts to perform different functions at different times, enabling both normal panel bending and structural stability.
3Reliability
If the lifting plate contacts the flexible display panel during folding, then the panel is supported, but wrinkles or damages occur in the folding area
Solution Approach 1:
The lifting plate dynamically adjusts its position to contact the panel only at the supporting position during folding, not during the entire folding process. This controlled contact provides necessary support while avoiding areas that would cause wrinkles or damages.
Solution Approach 2:
The lifting plate is positioned in advance at the supporting position before the panel reaches the folding state, ensuring support is available when needed but contact is minimized to prevent damage.
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 device enables smooth folding and unfolding of flexible display panels by dynamically supporting the folding area, preventing damage and ensuring normal bending, thus enhancing the durability and usability of foldable display devices.
Implementation Method 1
a first elastic member arranged between the lifting plate and the supporting plate, wherein the first elastic member is used to apply to the lifting plate a force toward the first surface
Data Source
AI summary
The present disclosure discloses a folding mechanism and a display device. The folding device includes a supporting plate, a lifting plate, at least one rotatable plate, a transmission assembly, a first elastic member, and at least one pushing wheel. The supporting plate has a first surface and a second surface. The lifting plate is arranged on a side of the first surface away from the second surface. The first elastic member is provided between the lifting plate and the supporting plate. The pushing wheel is connected with the rotatable plate through the transmission assembly. Rotating of the rotatable plate from the folding position to the unfolding position causes the pushing wheel to push the lifting plate to a supporting position, and during rotating of the rotatable plate from the unfolding position to the folding position, the first elastic member enables the lifting plate to move to an avoidance position.