Foldable Display Rotation Connection Structure for Thin, Low-Crease Hinges
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Solution Overview
Problem
Existing rotation shaft devices in folding electronic apparatuses occupy overall thickness space, limiting the bending angle of folding screens and causing creases, which affects the performance and usability of folding screens.
Innovation Solution
A rotation connection mechanism with a plate assembly, movement structure assembly, and torsion structure assembly that allows the first and second plates to switch between relative positions, providing torsion support and ensuring stability without occupying additional thickness, facilitating smooth bending and reducing creases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotation shaft device is arranged on the back side of the folding screen, then the display surface is protected, but the overall thickness space is occupied and the bending angle is limited
Solution Approach 1:
The patent moves the rotation shaft device from the back side (thickness direction) to the side edge of the folding screen, utilizing the lateral dimension instead. This dimensional relocation allows the rotation mechanism to operate in the lateral space rather than occupying thickness space, thereby reducing the overall thickness while still enabling the folding function and protecting the display surface.
2Length of stationary object
If the folding screen adopts a smaller screen bending angle to reduce thickness space, then the overall thickness is reduced, but the folding screen becomes difficult to bend and creates more creases
Solution Approach 1:
By relocating the rotation shaft device to the side edge and reconfiguring the folding mechanism to utilize lateral space, the patent enables a larger optimal bending angle to be achieved without increasing overall thickness. This dimensional rearrangement allows the screen to bend more easily at the optimized angle while reducing crease formation.
3Stability of the object's composition
If the rotation shaft device occupies thickness space, then the structural stability is maintained, but the folding screen performance is impacted due to limited bending angle
Solution Approach 1:
The patent relocates the rotation shaft device from the thickness direction to the lateral dimension, specifically positioning it at the side edge of the folding screen. This dimensional shift maintains structural stability through proper lateral support while enabling the folding screen to achieve its optimal bending angle, thereby improving folding screen performance by reducing creases and enhancing flexibility.
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 mechanism ensures a reduced overall thickness and minimizes creases on the folding screen while maintaining a predetermined bending angle, enhancing the usability and performance of folding screens.
Implementation Method 1
The torsion structure assembly is arranged on a side of the middle plate and includes a first torsion structure and a second torsion structure. The first torsion structure cooperates with the first movement structure. The second torsion structure cooperates with the second movement structure.
Data Source
AI summary
A rotation connection mechanism includes a plate assembly, a movement structure assembly, and a torsion structure assembly. The plate assembly includes a middle plate, a first plate, and a second plate. The first plate is rotatably connected to the middle plate. The second plate is rotatably connected to the middle plate. The movement structure assembly includes a first movement structure and a second movement structure. The first movement structure is arranged at a first end of the plate assembly. The second movement structure is arranged symmetrically with the first movement structure and arranged at a second end of the plate assembly. The torsion structure assembly is arranged on a side of the middle plate and includes a first torsion structure and a second torsion structure. The first torsion structure cooperates with the first movement structure. The second torsion structure cooperates with the second movement structure.