Curved Display Edge Layer Structure to Prevent Panel Stripping
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Solution Overview
Problem
The periphery region of soft display panels is prone to stripping due to bending, which reduces the yield and reliability of the display panel structure.
Innovation Solution
A substrate with recesses and a layered structure comprising inorganic and organic layers, where the first inorganic layer contacts the second inorganic layer at an end between the convex portion and the edge, and the organic layer is disposed between these layers, enhancing the structural integrity and reducing the risk of material overflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the periphery region of soft display panels is reinforced to prevent stripping, then the structural strength is improved, but the device complexity increases
Solution Approach 1:
The periphery region is divided into multiple recesses that are separated by convex portions, creating segmented structural units. This segmentation allows each recess to be independently reinforced while maintaining overall structural integrity, preventing stripping without requiring a completely different complex structure
Solution Approach 2:
The invention introduces a vertical dimension by creating recesses (depressions) in the substrate surface, transforming a two-dimensional planar structure into a three-dimensional profiled structure. This dimensional change provides enhanced mechanical reinforcement at the periphery region without significantly increasing horizontal device complexity
2Manufacturing precision
If a layered structure with inorganic and organic layers is implemented, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The convex portions and recesses are formed in the substrate before the inorganic and organic layers are deposited. This preliminary structuring of the substrate provides a pre-defined template that guides subsequent layer formation, ensuring precise alignment and contact between layers at the periphery region without requiring complex alignment processes
Solution Approach 2:
The layered structure is selectively applied to specific regions: the first inorganic layer is disposed on the convex portions while the second inorganic layer is disposed in the recesses, with organic layers filling specific interfaces. This localized application of different materials and structures provides enhanced manufacturing precision at critical periphery regions without requiring complex structures throughout the entire device
3Stability of the object's composition
If the first inorganic layer directly contacts the second inorganic layer at the end between convex portion and edge, then the structural integrity is improved, but the reliability worsens due to potential material overflow
Solution Approach 1:
An organic layer is introduced as an intermediary material between the first inorganic layer and the second inorganic layer at the interface region. This organic intermediary layer prevents direct contact that could cause material overflow and mixing, while still maintaining structural integrity by providing a controlled interface that stabilizes the composition at the periphery region
Data Source
AI summary
An electronic device is provided. The electronic device includes a substrate having an edge, an active region located on the substrate, a convex portion disposed between the edge and the active region, a first inorganic layer disposed on the substrate and the convex portion, a second inorganic layer disposed on the first inorganic layer, wherein the first inorganic layer directly contacts the second inorganic layer at an end which is located between the convex portion and the edge, and an organic layer disposed between the first inorganic layer and the second inorganic layer, and between the end and the convex portion.