Flexible Display Base Layer Protrusions for Stress Distribution
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Solution Overview
Problem
Conventional display apparatuses lack sufficient flexibility, making them prone to stress and potential damage when subjected to external forces such as bending, curving, or pulling, which can lead to abnormal deformation and reduced durability.
Innovation Solution
A display apparatus design featuring a base layer with protrusions and grooves in the connection area between pixel areas, allowing for increased flexibility and stress reduction by distributing strain and preventing defects like cutting or breakage, while maintaining the structural integrity of the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the display apparatus uses a conventional rigid structure, then structural integrity is maintained, but flexibility and resistance to deformation are reduced
Solution Approach 1:
The base layer is segmented into multiple protrusions and grooves within the connection area, creating a modular structure that can independently deform. This segmentation allows different regions to accommodate stress differently, enabling the display to bend and curve without compromising overall structural integrity while maintaining flexibility.
Solution Approach 2:
The connection area between pixel areas is given different local properties through the addition of protrusions and grooves, making this specific region more flexible and stress-resistant. The pixel areas maintain their original rigid structure for stability, while the connection area becomes adaptable to deformation, resolving the contradiction between overall integrity and local flexibility.
2Reliability
If the display apparatus is made flexible to resist external forces, then durability under bending and curving is improved, but structural stability and resistance to abnormal deformation worsen
Solution Approach 1:
The protrusions and grooves are pre-formed in the base layer before the display operates, creating a predetermined stress distribution pattern. This preliminary structural arrangement ensures that when external forces are applied, the stress is automatically distributed along the grooves and absorbed by the protrusions, preventing abnormal deformation while maintaining durability.
Solution Approach 2:
The groove structures act as pre-prepared stress absorption zones that cushion the impact of external forces before they can cause damage. These grooves are strategically positioned to intercept and distribute bending and curving stresses, protecting the pixel areas from abnormal deformation while enhancing durability.
3Adaptability or versatility
If protrusions are added to the connection area to distribute strain, then flexibility and stress resistance improve, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The base layer itself is designed as a thin flexible film with integrated protrusion and groove structures. This approach avoids adding separate complex components and instead incorporates the stress-distribution function directly into the existing thin base layer, maintaining simplicity while achieving the desired stress distribution capability.
Solution Approach 2:
The protrusions and grooves are merged into the base layer structure during manufacturing, combining multiple functions (structural support, stress distribution, flexibility) into a single integrated component. This merging reduces the number of separate parts and simplifies the overall device structure while achieving the required stress distribution capability.
Data Source
AI summary
A display apparatus includes a first base layer including a first pixel area and a second pixel area spaced apart from each other, and a connection area connecting the first pixel area to the second pixel area, the first base layer including a first surface and a second surface opposite to each other, a first pixel disposed in the first pixel area, and a second pixel disposed in the second pixel area. The first pixel and the second pixel are arranged on the first surface of the first base layer, and the first base layer includes a plurality of first protrusions arranged on the second surface of the connection area.