Foldable Screen Rotation Connection Structure for Reduced Thickness
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Solution Overview
Problem
Existing rotation shaft devices in foldable electronic apparatuses occupy thickness space, leading to increased bending difficulty and creases on the foldable screen, which affects performance.
Innovation Solution
A rotation connection mechanism comprising a first plate, a second plate, a control structure, and a torsion structure, allowing the plates to switch between relative positions to facilitate folding while minimizing thickness and reducing creases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotation shaft device is arranged on the back side of the foldable screen, then the foldable screen can be connected to the support shell, but the thickness of the whole machine increases
Solution Approach 1:
The patent transitions from a conventional rotation shaft device arranged on the back side of the foldable screen to a hinge structure integrated at the side of the foldable screen. This dimensional relocation moves the connection mechanism from a position that occupies rear thickness space to a lateral position that utilizes side space, thereby reducing the overall machine thickness while preserving connection functionality.
Solution Approach 2:
The hinge structure is integrated within the side region of the foldable screen, nesting the connection mechanism into the existing structural boundary. This integration allows the rotation function to be embedded within the device's lateral dimensions rather than requiring additional rear thickness, achieving compact design.
2Length of stationary object
If the foldable screen adopts a smaller screen bending angle to reduce thickness space, then the machine thickness is reduced, but the bending difficulty increases and more creases are caused
Solution Approach 1:
The patent divides the foldable screen into a first region and a second region separated by a hinge structure. The first region maintains a first bending angle while the second region adopts a second bending angle, allowing different segments to have different bending characteristics. This segmentation enables the screen to achieve compact folding without excessive bending difficulty in any single region.
Solution Approach 2:
The hinge structure acts as an intermediary element between the first region and the second region of the foldable screen. It provides a dedicated rotation axis that facilitates controlled bending at the hinge location, reducing the bending difficulty across the entire screen by concentrating the bending action at a specific, designed location rather than requiring the whole screen to bend at a small angle.
3Length of stationary object
If a hinge structure is integrated at the side of the foldable screen, then the thickness of the whole machine is reduced, but the device complexity increases
Solution Approach 1:
The patent merges the hinge structure with the support shell and foldable screen assembly. The hinge is integrated at the side region where the support shell is located, combining the support function and the rotation function into a unified structure. This merging reduces device complexity by eliminating separate components and integrating multiple functions into a single cohesive assembly.
Solution Approach 2:
The hinge structure serves multiple functions: it provides the rotation axis for bending, supports the foldable screen, and integrates with the support shell. This multi-functionality reduces the need for additional separate components, thereby reducing overall device complexity while achieving thin design.
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 stable support and reduces the probability of creases on the foldable screen by allowing for a larger bending angle and minimizing thickness, enhancing the application performance.
Implementation Method 1
The torsion structure is configured to provide torsion support at the first relative position and the second relative position, and provide a force for the control structure to control the first plate and the second plate to switch between the first relative position and the second relative position under an external force.
Data Source
AI summary
A rotation connection mechanism includes a first plate, a second plate, a control structure, and a torsion structure. The control structure is configured to control the first plate and the second plate to switch between a first relative position and a second relative position. The first plate and the second plate are at the first relative position, and the first plate and the second plate form a plate. The first plate and the second plate are at the second relative position, and the first plate faces the second plate to have a target angle. The torsion structure is configured to provide torsion support at the first relative position and the second relative position, and provide a force for the control structure to control the first plate and the second plate to switch between the first relative position and the second relative position under an external force.