Stretchable Display Slider Mechanism for Hinge Durability
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Solution Overview
Problem
Conventional flexible display devices are prone to damage when hinges bend or are damaged, limiting their durability and usability in portable electronic devices that require both compactness and large display screens.
Innovation Solution
A stretchable display device with a slider and cover system that allows the display to change size by moving unit bodies along edges, enabling extension and retraction, and featuring a display area, wiring areas, and connectors to maintain image output while adjusting size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If discrete display screens with hinges are used to achieve large display size, then visual satisfaction is improved, but durability deteriorates when hinges bend or are damaged
Solution Approach 1:
The patent applies the dynamics principle by transforming the static hinge structure into a dynamic slider mechanism. The display screen is divided into multiple segments that can move relative to each other along sliding sections, allowing the display to extend and retract without fixed hinges. This dynamic structure eliminates the reliability issue of hinge damage while maintaining the capability for large display area when extended.
Solution Approach 2:
The patent divides the display screen into multiple discrete segments or panels that can be independently positioned along the sliding sections. This segmentation allows each segment to move independently, eliminating the single-point failure mode of traditional hinges. The segmented structure maintains large display area capability when segments are extended while improving durability through distributed movement points.
2Area of stationary object
If flexible display with hinges is used to achieve large display area, then visual satisfaction is improved, but device compactness deteriorates
Solution Approach 1:
The slider mechanism enables the display to dynamically change its effective area by extending or retracting segments along the sliding sections. When not in use, segments can be retracted to minimize device volume for compact carrying. When needed, segments extend to provide large display area, thus resolving the contradiction between display size and compactness.
3Reliability
If stretchable display with sliding sections is used to improve durability, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent employs a nested structure where the first sliding sections are contained within the second sliding sections, which in turn are surrounded by the cover. This nested arrangement consolidates multiple sliding mechanisms into a compact integrated structure, reducing overall device complexity while maintaining the durability benefits of the stretchable design.
Solution Approach 2:
The patent combines multiple functional elements into unified structures: the cover integrates protection and structural support, the sliding sections combine movement guidance and positioning functions, and the connectors merge electrical connection with mechanical linkage. This merging reduces the number of separate components, thereby reducing device complexity while preserving reliability.
Data Source
AI summary
A stretchable display device includes a stretchable display that changes between extended and retracted states, a slider surrounding an edge of the stretchable display and having a variable length, and a cover that includes a plurality of unit bodies surrounding an outer surface of the slider.