Breathable Micro-LED Display Structure With Air-Passage Substrate
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Solution Overview
Problem
Wearable electronic devices with displays face challenges in providing a comfortable user experience due to the lack of breathability, which affects the overall satisfaction and usability, especially when integrated into wearable devices.
Innovation Solution
A micro light emitting diode display is designed with a substrate having air passages and encapsulation layers, allowing air to flow through while maintaining visual integrity, utilizing a flexible substrate with micro light emitting diodes and metal layers to enhance breathability and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display is integrated into a wearable device, then digital information can be presented, but breathability is compromised affecting user comfort
Solution Approach 1:
The substrate is designed with air passages extending from the first surface to the second surface, creating a porous structure that allows air flow through the display device. This enables the display to maintain breathability while integrating digital information presentation into wearable devices.
Solution Approach 2:
The substrate is segmented to include multiple air passages that divide and distribute airflow across the display area. This segmentation allows the display to maintain both its visual presentation function and breathability by creating multiple pathways for air flow through the substrate structure.
2Object-affected harmful factors
If air passages are added to the substrate, then breathability is improved, but the structural integrity and display quality may be affected
Solution Approach 1:
The air passages are strategically positioned and sized to provide breathability in specific regions while maintaining structural integrity in other areas. The electrode layer is spaced apart from the air passage openings to ensure electrical components are not compromised by the air flow paths.
Solution Approach 2:
The display structure combines the substrate with encapsulation layers (first and second encapsulation layers) and metal layers to create a composite structure. This composite design provides both the breathability needed for wearable comfort and the structural strength required for reliable operation.
Data Source
AI summary
A micro light emitting diode display includes a substrate, an electrode layer disposed on the substrate, a micro light emitting diode device disposed on the electrode layer, a metal layer disposed on the substrate and connected to the electrode layer, and first and second encapsulation layers. The substrate has an air passage extending to opposite surfaces thereof. The first encapsulation layer wraps the micro light emitting diode device. The second encapsulation layer covers the metal layer and has a material different from that of the first encapsulation layer. The metal layer has a visible area in a display region of the substrate that is not covered by the micro light emitting diode device. A part of the visible area is covered by the second encapsulation layer, and a proportion of the part to the visible area is equal to or greater than 60%.