Foldable Display Hinge Structure for Impact-Resistant Thin Profiles
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Solution Overview
Problem
Current foldable display devices face challenges in achieving a lightweight, thin profile while maintaining durability and resisting external impacts, as they are vulnerable to external forces due to their flexible nature.
Innovation Solution
A foldable display device design featuring a display panel with first and second display areas, elastic plates, and a hinge system that allows for easy folding and unfolding, with the elastic plate providing support and the hinge system ensuring stability through rotational connections, using materials like rubber and metal alloys for enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a flexible display device uses plastic thin film transistor substrate instead of glass to achieve lightweight and thin profile, then weight and thickness are reduced, but durability and resistance to external impacts deteriorate
Solution Approach 1:
The patent introduces a bump structure that protrudes from the rear surface of the display panel to provide beforehand cushioning. This bump absorbs external impacts before they reach the flexible display panel, protecting it from damage while maintaining the lightweight plastic substrate design
2Adaptability or versatility
If the display panel is made flexible to enable folding capability, then adaptability and space utilization are improved, but vulnerability to external impacts worsens
Solution Approach 1:
The bump structure serves as a protective element that absorbs external impacts before they reach the flexible display panel, enabling the panel to be folded without compromising its vulnerability to external forces
3Ease of operation
If a hinge system is added to enable folding operation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The hinge system is segmented into multiple components including a first hinge portion, a second hinge portion, and a bump structure. This segmentation allows each component to perform a specific function while collectively enabling folding operation with reduced overall complexity
Solution Approach 2:
The hinge system components are nested within each other, with the first hinge portion and second hinge portion integrated in a compact arrangement that minimizes space requirements and structural complexity while maintaining folding functionality
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 design achieves a lightweight, thin profile with improved durability, allowing for easy operation between folding and unfolding states while protecting the hinge system from external impacts, reducing process costs and enhancing efficiency.
Implementation Method 1
an elastic plate between the display panel and the first and second system units
Implementation Method 2
the first and second hinge portions are rotatably hinge-combined with each other
Data Source
AI summary
A foldable display device includes a display panel including first and second display areas and a folding part between the first and second display areas; first and second system units disposed under the display panel and corresponding to the first and second display areas, respectively, an elastic plate between the display panel and the first and second system units; and a hinge system corresponding to the folding part and disposed on rear surfaces of the first and second system units, the hinge system including a first hinge portion on the rear surface of the first system unit and a second hinge portion on the rear surface of the second system unit, wherein the first and second hinge portions are rotatably hinge-combined with each other.