Foldable Screen Rotation Shaft Mechanism for Smooth Folding
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Solution Overview
Problem
Foldable mobile terminals face issues such as screen damage and unsmooth sliding at the bending position, leading to poor user experience.
Innovation Solution
A rotation shaft mechanism for foldable screens, combined with a slide rail and booster mechanism, ensures smooth sliding and reduces screen wear by hiding the extra screen portion during folding, maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a foldable screen structure is adopted to enable large screen display, then the screen display area is improved, but the screen is easily damaged at the bending position
Solution Approach 1:
A rotation shaft mechanism is introduced as an intermediary component between the screen and the housing. This mechanism includes a rotation shaft that rotates within a housing, with a bearing supporting the rotation shaft. The bearing acts as a mediator to reduce friction and wear between the screen and the housing during bending, preventing direct contact and damage to the screen at the bending position.
2Adaptability or versatility
If the screen is made foldable to improve portability, then the device portability is improved, but the screen sliding is unsmooth and wrinkles occur
Solution Approach 1:
The bearing serves as an intermediary component that facilitates smooth rotation of the rotation shaft. By supporting the rotation shaft with a bearing, friction between the screen and housing is significantly reduced, enabling smooth screen sliding during folding and unfolding operations, thereby eliminating wrinkles and improving ease of operation.
Solution Approach 2:
The rotation shaft mechanism enables dynamic folding and unfolding movements of the screen. The rotation shaft can rotate freely within the housing around a rotation axis, allowing the screen to transition smoothly between different states (folded and unfolded) without rigid constraints that would cause friction and wrinkles.
3Reliability
If the rotation shaft mechanism is added to prevent screen damage, then the screen reliability is improved, but the device complexity increases
Solution Approach 1:
The protection mechanism is segmented into distinct functional components: a rotation shaft for rotation, a bearing for supporting the rotation shaft, and a housing for containing the mechanism. This segmentation allows each component to perform its specific function efficiently while maintaining overall simplicity. The rotation shaft handles rotation, the bearing handles friction reduction, and the housing provides structural containment.
Data Source
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AI summary
The present application provides a rotation shaft mechanism for a foldable screen, a foldable screen assembly, and a foldable mobile terminal. The present application can make the foldable screen of the foldable terminal work more reliably and smoothly. It has outstanding advantages of simpler structure, easy implementation, low cost, strong reliability, long lifespan, and more application fields, and can be widely used in foldable mobile terminals.