Light-Emitting Element With Uneven Buffer Layer
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Solution Overview
Problem
Conventional light-emitting elements, such as LEDs, face limitations in increasing light emission without expanding the overall device size, as the light-emitting pattern must be enlarged to enhance light output, which is typically achieved by increasing the device size.
Innovation Solution
A light-emitting element with a buffer layer having an uneven pattern, where a first conductive pattern and a light-emitting pattern are conformally formed along the buffer layer, and a second conductive pattern is formed on top, allowing for increased light emission without increasing the substrate size, with the first conductive pattern protruding laterally and electrodes formed on the protruding regions for enhanced light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the size of the light-emitting pattern is increased to increase the amount of light emitted, then the light emission amount is improved, but the overall device size must be increased
Solution Approach 1:
The invention transitions from a planar light-emitting pattern to a three-dimensional vertical structure by forming the light-emitting pattern on the side surface of the buffer layer. This dimensional change allows the light-emitting area to extend vertically rather than horizontally, increasing light emission without expanding the device footprint.
Solution Approach 2:
The light-emitting pattern is nested within the vertical structure of the buffer layer by forming it on the side surface. This nesting approach integrates the light-emitting function into the existing vertical architecture of the device, maximizing space utilization and avoiding lateral expansion.
2Productivity
If the light-emitting pattern is enlarged to increase light output, then the light emission efficiency is improved, but the substrate size must be increased
Solution Approach 1:
The invention utilizes the vertical dimension by forming the light-emitting pattern on the side surface of the buffer layer rather than expanding it horizontally on the substrate plane. This enables increased light emission efficiency while maintaining the same substrate size.
Solution Approach 2:
The invention concentrates the light-emitting function in a specific localized region on the side surface of the buffer layer. By enhancing the light-emitting capability in this specific location rather than uniformly expanding across the substrate, the device achieves higher emission efficiency without increasing overall substrate size.
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 configuration enables increased light emission efficiency by maintaining the same substrate size, improving light emission characteristics through the use of conformal patterns and strategically placed electrodes, thereby enhancing the light-emitting performance without the need for larger device dimensions.
Implementation Method 1
Light-emitting elements, such as LEDs (light emitting diodes), emit light by coupling between electrons and holes
Data Source
AI summary
A light-emitting element capable of increasing the amount of light emitted, a light-emitting device including the same, and a method of manufacturing the light-emitting element and the light-emitting device include a buffer layer having an uneven pattern formed thereon; a light-emitting structure including a first conductive pattern of a first conductivity type that is conformally formed along the buffer layer having the uneven pattern formed thereon, a light-emitting pattern that is conformally formed along the first conductive pattern, and a second conductive pattern of a second conductivity type that is formed on the light-emitting pattern; a first electrode electrically connected to the first conductive pattern; and a second electrode electrically connected to the second conductive pattern.