Light Emitting Device Sealing Member Detachment
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Solution Overview
Problem
Existing methods for detaching sealing members from light emitting devices are inefficient, leading to increased manufacturing costs and waste due to the difficulty in replacing defective elements without damaging the substrate or leaving residues.
Innovation Solution
A method involving a release layer or air layer between the substrate and the sealing member allows for easy detachment of the sealing member, utilizing a release layer with lower adhesion to facilitate separation, or an air layer that prevents contamination and enhances reliability, enabling efficient replacement of defective elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to detach sealing members, then manufacturing yield may be improved by replacing defective elements, but the process becomes inefficient and increases manufacturing costs
Solution Approach 1:
A release layer is provided between the sealing member and substrate before sealing, creating a predetermined weak adhesion interface that enables easy detachment later. This preliminary action allows the sealing member to be detached without complex removal processes, improving both efficiency and cost-effectiveness
Solution Approach 2:
The release layer acts as an intermediary between the sealing member and substrate, providing controlled adhesion during operation but allowing easy separation when needed. This intermediary layer resolves the contradiction by enabling both secure sealing and efficient detachment
2Reliability
If the sealing member is strongly adhered to the substrate, then sealing reliability is improved, but detachment becomes difficult and may damage the substrate or leave residues
Solution Approach 1:
The adhesion interface is segmented into two distinct zones: a strong adhesion zone between the sealing member and the release layer, and a weak adhesion zone between the release layer and the substrate. This segmentation allows the sealing member to be detached cleanly from the substrate while maintaining strong sealing during operation
Solution Approach 2:
The release layer serves as an intermediary that provides strong adhesion to the sealing member while having weak adhesion to the substrate, enabling reliable sealing during operation and easy detachment when needed, thus resolving the contradiction between sealing reliability and detachment ease
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
This method enables the rapid and reliable detachment of sealing members, reducing manufacturing costs and waste by allowing for easy replacement of defective elements, while maintaining the integrity of the light emitting device.
Implementation Method 1
a release layer is provided between the substrate and the sealing member; and the sealing member is detached from the substrate at the release layer
Implementation Method 2
an air layer is provided between the substrate and the sealing member; and the sealing member is detached from the substrate at the air layer
Data Source
AI summary
A method of detaching a sealing member of a light emitting device which has a substrate, alight emitting element mounted on the substrate and a sealing member that seals the light emitting element, wherein a release layer and/or an air layer is/are provided between the substrate and the sealing member; and the sealing member is detached from the substrate at the release layer and/or the air layer.