Rotating Shaft Mechanism for Foldable Display Crease Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current foldable electronic devices, such as cell phones, experience arching deformation of their flexible displays when folded, leading to creasing or peeling, which can result in display failure and reduced service life.
Innovation Solution
A rotating shaft mechanism is introduced, comprising a base and a rotating assembly with a support, linkage member, and guide member. The linkage member includes a body with a rotating portion and sliding portions, and a driving portion connected between the sliding portions. The guide member has a connecting portion and a guiding portion with a sliding groove, allowing the driving portion to slide and the guide member to rotate, creating an avoidance space that accommodates the bending of the foldable screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the flexible display edges are fixedly connected to the housings, then the display structure is stable, but the display undergoes arching deformation causing creasing or peeling
Solution Approach 1:
A buffer component is introduced between the flexible display and the housing to act as a mediator. This buffer component can deform elastically to absorb squeezing forces during folding, preventing direct transmission of stress to the display edges and thus avoiding arching deformation while maintaining structural stability
Solution Approach 2:
The mechanical properties of the buffer component are specifically designed with appropriate elastic modulus and hardness parameters. By optimizing these physical parameters, the buffer component can effectively absorb impact forces during folding movements, protecting the display from deformation while maintaining overall structural integrity
2Volume of moving object
If the flexible display is folded to achieve miniaturization, then the device size is reduced, but the display is prone to damage
Solution Approach 1:
The buffer component is pre-installed in the housing structure before the flexible display is assembled. This beforehand cushioning arrangement ensures that when folding occurs, the buffer is already in position to absorb impact forces, preventing display damage before it can occur
Solution Approach 2:
The buffer component serves as a protective intermediary between the folding housings and the flexible display. During folding movements, it absorbs and dissipates mechanical stresses, allowing the display to be protected even when the device is miniaturized through folding
Data Source
AI summary
An electronic device and a rotating shaft mechanism therefor are described. The rotating shaft mechanism includes a base and a rotating assembly rotatably connected to each other. The rotating assembly includes a support, a linkage member and a guide member. The support and the base are arranged in a spaced manner, and the linkage member is arranged between the base and the support. The linkage member includes a body and a driving portion arranged on the body, one end of the body being rotatably connected to the base, and another end of the body being slidably connected to the support. The guide member includes a connecting portion and a guiding portion. The connecting portion is arranged at one side of the support and is rotatably connected to the support. The guiding portion is arranged between the connecting portion and the support and is slidably connected to the driving portion.