Inorganic Light Emitter Laser Separation Oxide Layer Protection
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Solution Overview
Problem
Inorganic light emitting elements face deterioration when excessively irradiated with laser light during the manufacturing process of inorganic light emitters, leading to reduced light emitting efficiency.
Innovation Solution
A method involving the formation of an oxide layer on the surface of inorganic light emitting elements by emitting laser light in an atmosphere with a higher oxygen concentration, which prevents impurities and stabilizes the structure, thereby preventing performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If laser light is emitted to separate the inorganic light emitting element from the substrate, then the light emitting element can be separated and transferred to the array substrate, but excessive irradiation with laser light causes deterioration of the light emitting element and reduces light emitting efficiency
Solution Approach 1:
An oxide layer is introduced as an intermediary between the laser light and the light emitting element. This oxide layer absorbs excess laser energy and prevents direct damage to the light emitting element during the separation process, thereby maintaining light emitting efficiency while enabling successful separation and transfer
Solution Approach 2:
The oxide layer is formed on the light emitting element before the laser separation process begins. This preliminary formation of the protective oxide layer ensures that when laser light is subsequently applied for separation, the element is already protected against excessive irradiation damage
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 oxide layer formed protects the light emitting elements from excessive laser light, maintaining light emitting performance and preventing deterioration, ensuring stable operation even with prolonged exposure.
Implementation Method 1
separating the inorganic light emitting element from the substrate while forming an oxide layer on a first surface of the inorganic light emitting element by emitting laser light to the first surface under an atmosphere having an oxygen concentration higher than an oxygen concentration of air
Data Source
AI summary
A method for manufacturing an inorganic light emitter, include arranging an inorganic light emitting element on one surface of a substrate; separating the inorganic light emitting element from the substrate while forming an oxide layer on a first surface of the inorganic light emitting element by emitting laser light to the first surface under an atmosphere having an oxygen concentration higher than an oxygen concentration of air, the first surface contacting the one surface of the substrate; and stacking the inorganic light emitting element separated at the separating on an array substrate to manufacture the inorganic light emitter.