Foldable Display Hinge with Synchronous Bilateral Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing foldable electronic devices fail to achieve bilateral synchronous rotation due to mismatched speeds of rotation mechanisms in the hinge, leading to reduced service life from mechanical stress on the flexible display panel.
Innovation Solution
A hinge design incorporating a fixed support, first and second rotation mechanisms with transmission members, and a moving block that converts rotational motion to linear motion, ensuring synchronized rotation through meshed gears and a holding mechanism with elastic members for stable engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two rotation mechanisms are used in the hinge to enable folding and unfolding, then the electronic device can be folded or rolled to reduce size and improve portability, but the two rotation mechanisms cannot rotate at the same speed resulting in bilateral synchronous rotation failure and mechanical stress on the flexible display panel
Solution Approach 1:
A moving block is introduced as an intermediary component between the first and second rotation mechanisms. The moving block converts the rotational motion of both mechanisms into linear motion, ensuring that both rotation mechanisms rotate at the same speed during folding and unfolding processes, thereby achieving bilateral synchronous rotation and preventing mechanical stress on the flexible display panel
Solution Approach 2:
The patent replaces the traditional direct rotational connection between the two rotation mechanisms with a mechanical transmission system involving circular gears and a linear gear on the moving block. This substitution transforms the mechanical relationship from independent rotation to synchronized motion through gear meshing, ensuring equal rotation speeds
2Ease of operation
If the two rotation mechanisms rotate at different speeds, then each mechanism can operate independently, but bilateral synchronous rotation cannot be achieved causing the flexible display panel to be pressed or pulled
Solution Approach 1:
The moving block serves as a mediator that couples the two rotation mechanisms through linear motion. By converting rotational motion to linear motion and back, it ensures synchronized operation while eliminating the harmful mechanical stress caused by speed mismatch
Solution Approach 2:
The patent changes the motion parameter from independent rotational speed to synchronized linear motion speed. The moving block enforces a parameter relationship where both rotation mechanisms must rotate at the same speed, transforming the operation mode from independent to synchronized
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 solution enables bilateral synchronous movement of the hinge, reducing mechanical stress on the flexible display panel and enhancing the durability and reliability of foldable electronic devices.
Implementation Method 1
the first transmission member includes a first circular gear, the second transmission member includes a second circular gear, and the moving block includes a linear gear; wherein the first circular gear and the second circular gear are meshed with the linear gear
Implementation Method 2
the holding mechanism further includes a first elastic member, a second elastic member, a third elastic member, a fourth elastic member
Data Source
AI summary
A hinge, a flexible display panel, and an electronic device are disclosed. The electronic device includes a flexible display panel which includes a flexible display panel main body and a hinge. The hinge includes a first rotation mechanism, a second rotation mechanism, and a moving block. The first rotation mechanism and the second rotation mechanism are interlinked by the moving block, so that an effect of bilateral synchronous movement in the electronic device can be achieved, thereby preventing the flexible display panel main body from being pressed or pulled during folding or unfolding processes.