Flexible Display Panel With Dual-Modulus Elastic Bending Support
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Solution Overview
Problem
Existing display panels face challenges in flexibility and reliability, particularly in regions with thick functional layers, leading to issues such as irreversible folding and reduced durability.
Innovation Solution
The display panel incorporates a first region with a first elastic body and a second region with a second elastic body having a higher elastic modulus, allowing for controlled bending with larger curvature radii and preventing irreversible folds, while also using a sealant to inhibit impurity diffusion and protect end portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a functional layer with thickness greater than or equal to half of the total thickness is positioned in the lower half region, then the display panel achieves flexibility and bendability, but the panel is prone to irreversible folding and reduced reliability
Solution Approach 1:
The patent applies local quality by creating a composite elastic body with non-uniform elastic modulus distribution. The first elastic body (lower half) has a lower elastic modulus to provide flexibility and bendability, while the second elastic body (upper half) has a higher elastic modulus to maintain structural strength and prevent irreversible folding. This spatial variation in material properties resolves the contradiction between flexibility and durability.
Solution Approach 2:
The patent employs composite materials by combining two elastic bodies with different elastic moduli into a single composite elastic body structure. The first elastic body with lower elastic modulus provides flexibility, while the second elastic body with higher elastic modulus provides structural support. This composite structure enables the display panel to achieve both flexibility and reliability simultaneously.
2Volume of moving object
If the display panel is bent with small curvature radius to achieve compact form, then the panel size is reduced, but irreversible folds and defects occur
Solution Approach 1:
The composite elastic body structure allows different regions to have different bending characteristics. The lower half with lower elastic modulus accommodates bending deformation, while the upper half with higher elastic modulus maintains structural integrity. This enables the panel to be bent into compact forms without forming irreversible folds or defects.
3Manufacturing precision
If the functional layer thickness is increased to improve display quality, then the display performance is enhanced, but the panel flexibility is reduced
Solution Approach 1:
The patent resolves this contradiction by localizing the thickness variation within the elastic body structure. The first elastic body in the lower half has reduced thickness to maintain flexibility, while the second elastic body in the upper half has increased thickness to support the functional layer and maintain display quality. This spatial differentiation allows both flexibility and display quality to coexist.
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 a display panel that is highly convenient and reliable, with improved bending capabilities and reduced thickness, capable of repeated bending without defects and enhanced protection against environmental factors.
Implementation Method 1
the first component includes a first elastic body and a second elastic body; the second elastic body includes an end portion part or the whole of which is covered with the first elastic body, and the second elastic body has a higher elastic modulus than the first elastic body
Implementation Method 2
using a sealant to inhibit impurity diffusion and protect end portions
Data Source
AI summary
A novel display panel that is highly convenient or reliable is provided. The display panel includes a first region and a second region. The second region is provided with a first component, and the second region can be bent with the first component facing outward. The first component includes a first elastic body and a second elastic body. The second elastic body includes an end portion part or the whole of which is covered with the first elastic body. The second elastic body has a higher elastic modulus than the first elastic body.