Foldable Display Rotation Mechanism for Load-Balanced Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current folding mechanisms for flexible displays in foldable electronic devices are inadequate in supporting the display, leading to damage and short service life due to poor support under external forces.
Innovation Solution
A folding apparatus with a rotation mechanism that includes a main shaft assembly, support plates, and transmission arms, which deform to enable folding and unfolding while providing strong support to the flexible display, reducing the risk of damage and improving reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-section chain hinged structure is used for the rotation mechanism, then the folding requirement is met, but the support effect for the flexible display is poor
Solution Approach 1:
The rotation mechanism is divided into multiple independent support components including first support plate, second support plate, first rotation arm, and second rotation arm. Each component provides localized support to different regions of the flexible display, ensuring comprehensive coverage and strong support throughout the folding process.
Solution Approach 2:
The support plates and rotation arms are pre-positioned and connected to the housings and main shaft assembly before folding occurs. This preliminary arrangement ensures that support structures are already in place and ready to bear loads immediately when external forces are applied during folding operations.
2Ease of operation
If the flexible display is subjected to external force during folding, then the folding function is achieved, but the flexible display is easily dented and damaged
Solution Approach 1:
The first support plate and second support plate are positioned to contact and support the flexible display before external forces cause denting or damage. These support plates act as protective elements that distribute and bear external loads, preventing direct transmission of harmful forces to the flexible display surface.
Solution Approach 2:
The support plates serve as intermediary elements between the external environment and the flexible display. Instead of external forces directly acting on the flexible display, the support plates intercept and bear these forces, transferring them to the housing and main shaft assembly structures.
3Device complexity
If a simple hinged structure is used, then the device complexity is reduced, but the service life of the flexible display is shortened
Solution Approach 1:
The rotation arms and support plates are designed to dynamically adapt their positions and orientations during the folding process. The rotation arms can rotate relative to the housings and main shaft assembly, allowing the support structure to maintain optimal support angles and positions throughout the range of motion, thereby extending service life through adaptive support.
Data Source
AI summary
A rotating mechanism includes a main shaft assembly, a first fastening bracket, a first transmission arm, a first rotation arm, a first support plate, a second fastening bracket, a second transmission arm, a second rotation arm, and a second support plate. One end of the first transmission arm is slidably connected to the first fastening bracket, and the other end is rotatably connected to the main shaft assembly. Two ends of the first rotation arm are rotatably connected to the first fastening bracket and the main shaft assembly respectively.