Scroll Screen Hinge Linkage for Adaptive Opening Angle Stability
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Solution Overview
Problem
Existing electronic devices with scroll screens face challenges in maintaining stability during use, as the fixed rotation shaft damping impairs the user experience by restricting the maximal opening angle, which hinders screen preview and stability when the screen is unfolded.
Innovation Solution
An electronic device with a linkage control assembly that includes a rotation shaft, a position-limiting linkage member, and a position-limiting mating member, which dynamically adjusts the rotation angle based on the extension and retraction length and weight changes of the scroll screen, allowing for adaptive positioning to ensure stability and enhance user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotation shaft damping is set to a relatively stable value to ensure easy operation of the scroll screen, then the ease of operation is improved, but the maximal opening angle is restricted to ensure stability, which impairs the user experience of screen preview
Solution Approach 1:
The patent applies the dynamics principle by making the position-limiting linkage member rotatable to dynamically adjust the maximal rotation angle of the second body. When the scroll screen is extended, the linkage member rotates to increase the maximal opening angle, enabling screen preview. When retracted, it returns to the original position to maintain stability. This dynamic adjustment resolves the contradiction between ease of operation and adaptability.
2Stability of the object's composition
If the maximal value position of unfolding the scroll screen is restricted to ensure the laptop is still stably placed, then the stability is improved, but the user experience of screen preview is impaired
Solution Approach 1:
The position-limiting linkage member dynamically changes the maximal rotation angle based on the extension length of the scroll screen. When the screen is fully extended for preview, the linkage member rotates to allow a larger opening angle. When retracted, it restricts the angle to ensure stability. This dynamic behavior resolves the contradiction between stability and screen preview capability.
3Reliability
If the rotation shaft damping is fixed to maintain stability, then the reliability is improved, but the adaptability to different scroll screen positions and weights is reduced
Solution Approach 1:
The position-limiting linkage member provides dynamic adaptability by rotating in response to the extension length and weight changes of the scroll screen. This allows the maximal rotation angle to be adjusted according to the actual load and position, maintaining reliability across different operating conditions while improving adaptability.
Solution Approach 2:
The patent changes the parameter of maximal rotation angle dynamically based on the extension length and weight of the scroll screen. The linkage member rotates to adjust this angle parameter, allowing the system to adapt to different operating conditions while maintaining stability, thus resolving the contradiction between reliability and adaptability.
Data Source
AI summary
An electronic device includes a first body, a second body, and a linkage control assembly. The linkage control assembly includes a rotation shaft, a position-limiting linkage member, and a position-limiting mating member. The rotation shaft is configured to rotatably connect the first body and the second body. The position-limiting linkage member is arranged at the rotation shaft. The position-limiting mating member is arranged at a side of the rotation shaft close to the first body. The position-limiting linkage member is configured to cooperate with the position-limiting mating member to perform position-limiting on the rotation angle of the second body. The position-limiting linkage member rotates based on an extension length and/or a weight increase value along a first direction. The position-limiting linkage member rotates along a second direction based on the retraction length of the second body and/or a weight decrease value.