Stretchable Display Panel Structure for Twist-Resistant Stretching
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Solution Overview
Problem
Existing stretchable display panels break when stretched in arbitrary directions due to insufficient flexibility and structural integrity.
Innovation Solution
A stretchable display panel design featuring pixel islands, connecting bridges, and hollow areas filled with a stretchable material, which reduces the Young's modulus and enhances stretchability, preventing breakage and deformation during stretching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the display panel uses a rigid structure to maintain structural integrity, then strength is improved, but stretchability deteriorates
Solution Approach 1:
The display panel is divided into pixel islands and connecting bridges, with hollow areas created between them. This segmentation allows the panel to be flexible while maintaining structural integrity through the distributed design of functional elements across multiple segments.
Solution Approach 2:
Different regions of the display panel have different properties: pixel islands contain functional display elements while connecting bridges provide flexibility pathways. The hollow areas are strategically positioned to enable stretching without compromising the structural integrity of the functional regions.
2Adaptability or versatility
If the display panel is made flexible to enable stretching, then stretchability is improved, but reliability deteriorates
Solution Approach 1:
Stretchable material is pre-filled into the hollow areas before the stretching operation. This cushioning material provides mechanical support and stress distribution during stretching, preventing breakage of the flexible components while maintaining the desired stretchability.
Solution Approach 2:
The display panel combines flexible substrates with stretchable filling material in a composite structure. This composite design leverages the flexibility of the substrate and the mechanical support of the filling material to achieve both stretchability and reliability.
3Adaptability or versatility
If hollow areas are filled with stretchable material to enhance stretchability, then adaptability is improved, but device complexity increases
Solution Approach 1:
The display panel incorporates hollow areas that are filled with stretchable material, creating a porous-like structure. This approach enables stretchability by providing void spaces that can be filled with compliant material, simplifying the overall design compared to fully solid flexible structures.
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 prevents the panel from breaking and twisting by increasing stretchability and maintaining structural integrity during stretching, ensuring a stable display function in any direction.
Implementation Method 1
each of the hollow areas is provided with a first opening, the first opening is filled with a stretchable material, and the stretchable material is disposed on a side of the first flexible support layer close to the pixel islands
Data Source
AI summary
A stretchable display panel is disclosed, which includes a first flexible support layer, a plurality of pixel islands and a plurality of connecting bridges disposed on the first flexible support layer, and a plurality of hollow areas, wherein each of the hollow areas is provided with a first opening, and the first opening is filled with a stretchable material. Embodiments of the present application can reduce Young's modulus of the entire stretchable display panel, increase stretchability of the stretchable display panel, and can suppress the stretchable display panel from being twisted and deformed when stretched.