Foldable Mobile Terminal Hinge Module for Display Wrinkle Compensation
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Solution Overview
Problem
Foldable mobile terminals face challenges in compensating for the length of flexible display panels during folding, leading to potential wrinkling, and in supporting the panels in an unfolded state, where damage can occur due to lack of adequate support.
Innovation Solution
A hinge module with a hinge body including first and second shafts, first and second hinge connectors, and gear groups that rotate to adjust the distance of supporting bodies relative to the shafts, ensuring the flexible display panel is not wrinkled in the folded state and adequately supported in the unfolded state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display panel is folded without length compensation, then the folding function is achieved, but the display panel becomes wrinkled
Solution Approach 1:
A hinge module is introduced as an intermediary mechanism between the first and second bodies. The hinge module includes a hinge body with first and second shafts, and hinge connectors that pivot on these shafts. This intermediary structure enables the folding function while compensating for the display panel length through the rotational movement of the hinge connectors, thereby preventing wrinkles without requiring the display panel itself to be flexible enough to withstand direct folding stress.
Solution Approach 2:
The hinge module employs dynamic elements including rotatable hinge connectors and gear groups that adjust the relative positions of the first and second bodies during folding. The distance from the first body to the first shaft and from the second body to the second shaft varies according to rotation angles, creating a dynamic compensation mechanism that adapts to the folding motion and maintains display panel integrity.
2Manufacturing precision
If space is provided around the folded portion to compensate for display panel length, then wrinkling is prevented, but the display panel region becomes vulnerable to damage in unfolded state
Solution Approach 1:
The hinge module serves as a supporting intermediary structure that bears the load and stress during folding operations. By providing shafts and connectors that actively manage the folding mechanics, the hinge module protects the display panel from direct mechanical stress and damage, while still enabling the necessary space for length compensation during folding.
3Device complexity
If a simple hinge structure is used, then device complexity is reduced, but the ability to compensate for display panel length and provide support is insufficient
Solution Approach 1:
The hinge module merges multiple functions into a single integrated structure: the hinge body provides structural support, the shafts enable rotational movement, the hinge connectors facilitate pivoting motion, and the gear groups provide mechanical advantage and controlled motion. This combination achieves sophisticated display panel length compensation and support without requiring multiple separate mechanisms, thereby managing complexity while maintaining precision.
Solution Approach 2:
The hinge module is designed as a multi-functional component that simultaneously provides structural support, enables folding motion, compensates for display panel length through variable distances, and protects the display panel from damage. The first and second shafts and connectors work together to perform multiple functions that would otherwise require separate mechanisms.
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 effectively compensates for the length of the flexible display panel in the folded state, preventing wrinkling and provides sufficient support in the unfolded state, enhancing the durability and usability of the mobile terminal.
Implementation Method 1
a first hinge connector pivoting on the first shaft and connected to the first body, and a second hinge connector pivoting on the second shaft and connected to the second body, wherein a distance of the first body to the first shaft varies according to an rotation angle of the first hinge connector, and a distance of the second body to the second shaft varies according to a rotation angle of the second hinge connector
Implementation Method 2
The first hinge connector and the second hinge connector rotate the same angle around the first shaft and the second shaft in opposite directions through a plurality of first gear groups operatively engaged with each other
Implementation Method 3
a hinge module configured to support the third region, wherein the first body and the second body being rotatably connected to hinge module
Data Source
AI summary
The present invention relates to a foldable mobile terminal characterized by comprising: a foldable body; a flexible display panel which is provided on one surface of the body and folds together with the body; and a protective cover covering the flexible display panel. The protective cover comprises a first cover covering a foldable first area in the flexible display panel, and a second cover covering second covers provided on both sides of the first area in the flexible display panel. The second cover is made of a material which is different from the material of the first cover, and has a higher rigidity than the first cover.