Light-Emitting Element Insulation Structure Against LED Agglomeration
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Solution Overview
Problem
Existing light emitting diodes (LEDs) face issues with agglomeration when fabricated at a nanometer to micrometer scale, leading to potential short-circuits and deterioration in display devices due to adjacent elements coming into contact.
Innovation Solution
The design incorporates an insulating film with non-uniform thickness surrounding the emission stacked pattern, featuring varying shapes and protrusions to maintain separation between adjacent LEDs, preventing agglomeration and ensuring stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If LEDs are fabricated at nanometer to micrometer scale, then the size of light emitting elements is reduced, but adjacent elements may come into contact causing agglomeration and short-circuits
Solution Approach 1:
An insulating film is introduced as an intermediary substance between adjacent light emitting elements. This insulating film physically separates the elements, preventing direct contact and potential short-circuits while allowing the elements to maintain their reduced nanometer to micrometer scale dimensions.
Solution Approach 2:
A thin film insulating layer is applied to surround the emission stacked pattern. This thin film provides continuous electrical insulation between adjacent elements, ensuring reliability even when elements are closely packed at small scales, while adding minimal volume to the overall structure.
2Reliability
If insulating film with non-uniform thickness is used, then separation between adjacent LEDs is maintained, but manufacturing complexity increases
Solution Approach 1:
The insulating film is designed with non-uniform thickness, where different regions of the film have different thickness values. This local variation in quality allows the film to provide adequate separation and insulation in critical areas while maintaining manufacturability through standard deposition techniques that can control thickness gradients.
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 solution effectively prevents adjacent LEDs from agglomerating, maintaining light-emitting characteristics and reducing the risk of short-circuits in display devices, thereby enhancing the durability and performance of the display device.
Implementation Method 1
an insulating film which surrounds an outer surface of the emission stacked pattern... prevent adjacent light emitting elements from being agglomerated
Data Source
AI summary
A light emitting element includes an emission stacked pattern and an insulating film. The emission stack pattern includes a first conductive semiconductor layer, an active layer disposed on the first conductive semiconductor layer, and a second conductive semiconductor layer disposed on the active layer. The insulating film surrounds an outer surface of the emission stacked pattern and has a non-uniform thickness.