Display Apparatus Thin-Film Encapsulation Edge Protrusion
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Solution Overview
Problem
Display apparatuses face challenges in adding various functions while minimizing non-display areas to enhance usability and durability, particularly in maintaining structural integrity when removing unnecessary components.
Innovation Solution
A display apparatus design featuring a display panel with a thin-film encapsulation layer, an input sensing member, and a resin layer, where the thin-film encapsulation layer protrudes over the resin layer towards the substrate, and includes both inorganic and organic encapsulation layers for enhanced durability and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the thin-film encapsulation layer is completely covered by the resin layer, then the structural integrity is improved, but the impact resistance deteriorates due to potential separation during manufacturing or external impacts
Solution Approach 1:
The resin layer is configured to expose specific portions of the thin-film encapsulation layer rather than providing uniform coverage. This localized exposure at the edges creates different functional zones: the covered central area maintains structural integrity while the exposed edge areas provide impact resistance by preventing separation during manufacturing or external impacts.
2Adaptability or versatility
If various functions are added to the display apparatus, then the functionality is improved, but the area occupied by non-display portions increases
Solution Approach 1:
The input sensing member is integrated with the display panel structure, merging the display function and input sensing function into a single unified component. The sensing electrodes are formed on the same substrate as the display elements, eliminating the need for separate input devices and reducing the overall area occupied by non-display portions.
Solution Approach 2:
The display panel is designed to perform multiple functions simultaneously: display output and input sensing. The same structural components (substrate, encapsulation layer) serve both protective and sensing purposes, maximizing functionality within minimized area.
3Ease of manufacture
If the thin-film encapsulation layer is fully covered by the resin layer, then the manufacturing process is simplified, but the separation resistance deteriorates under external impacts
Solution Approach 1:
The resin layer coverage is optimized to expose specific edge portions of the thin-film encapsulation layer. This localized exposure configuration maintains relatively simple manufacturing processes while significantly improving separation resistance under external impacts by allowing the encapsulation layer to anchor to the substrate at exposed edges.
Data Source
AI summary
A display apparatus may prevent a thin-film encapsulation layer and a substrate or a thin-film encapsulation layer and a buffer layer from being separated from each other when a base layer and the substrate are cut. A display apparatus may include a display panel including a substrate, a display layer on the substrate, and a thin-film encapsulation layer covering the display layer; an input sensing member including a base layer facing the substrate of the display panel, and sensing electrodes above the base layer; and a resin layer between the thin-film encapsulation layer and the base layer, and an end of the thin-film encapsulation layer protrudes from the resin layer toward an end of the substrate.