Stretchable Display Structure With Net-Shaped Elastic Connections
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Solution Overview
Problem
Existing display devices with bendability have limited stretchability, leading to potential damage or irreversible deformation of organic and inorganic layers when forced to stretch.
Innovation Solution
A display device with a net-shaped distribution structure comprising elastically stretchable stretching units connected to display units, allowing for improved stretchability by designing connection lines between elastic connection points to form acute angles with the normal of the display units, enhancing elastic deformation and elongation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If display devices are designed to be bendable/foldable, then flexibility is improved, but stretchability is limited and organic/inorganic layers may be damaged
Solution Approach 1:
The display device is segmented into multiple display units connected by stretching units, forming a net-shaped distribution structure. This segmentation allows each component to independently handle bending or stretching forces, enabling the overall device to achieve both flexibility and stretchability without damaging the organic and inorganic layers.
Solution Approach 2:
The connection lines between elastic connection points are designed to dynamically adjust their orientation relative to the display units. When tension is applied, the connection lines rotate to form acute angles with the normal of the display units, enabling the structure to adaptively respond to external forces and distribute stress evenly, thereby improving reliability during stretching.
2Reliability
If stretching units are added to improve stretchability, then reliability is improved, but device complexity increases
Solution Approach 1:
The stretching units serve multiple functions: they provide elastic deformation capability, enable stretching motion, maintain structural integrity, and support the net-shaped distribution pattern. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity while achieving improved stretchability.
Solution Approach 2:
The design utilizes parameter changes in the connection lines, specifically the angle between the connection line and the normal of the display unit. By allowing this angle to change from parallel (0 degrees) to acute angles during stretching, the structure achieves enhanced elasticity and stretchability through geometric parameter adjustment rather than adding complex mechanical components.
3Stability of the object's composition
If connection lines are designed to form acute angles with display unit normals, then elastic deformation is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The net-shaped distribution structure functions as a composite system where the relationship between connection lines and display units creates enhanced elastic deformation capability. The geometric configuration itself, rather than requiring precision-engineered joints, provides the elastic response, reducing manufacturing precision requirements while maintaining compositional stability.
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 display device achieves enhanced stretching performance with improved pixel display area proportion and aperture ratio, reducing the risk of damage and maintaining image quality during stretching and deformation.
Implementation Method 1
a plurality of elastically stretchable stretching units respectively connected among the plurality of display units
Data Source
AI summary
The present disclosure relates to a display device and a method of manufacturing the same. The display device includes: a plurality of display units, each display unit including one or more pixels; and a plurality of elastically stretchable stretching units respectively connected among the plurality of display units and forming elastic connection points with the display units, the stretching units and the plurality of display units forming a net-shaped distribution structure, wherein in a state that the display device is not under tension, a connection lines between the elastic connection points at both ends of the stretching unit are not parallel to a normal of the display units connected with at least one end of the stretching unit at the elastic connection points.