LED Current Block Pattern for Light Efficiency
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Solution Overview
Problem
Conventional light emitting elements, such as LEDs, face limitations in light efficiency, necessitating the development of improved designs to enhance their performance in various applications.
Innovation Solution
The implementation of a current block pattern in light emitting devices, which includes a first electrode, a second electrode, and a block pattern that disperses current throughout the emitting pattern, utilizing insulating materials like oxide or nitride layers to regulate current flow and increase light efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional LED structure is used, then device simplicity is maintained, but light efficiency is insufficient
Solution Approach 1:
The patent introduces a block pattern that divides the emitting region into multiple segments, creating distinct current flow paths through the light emitting element. This segmentation allows current to be distributed more effectively across different regions of the emitting layer, improving overall light efficiency without requiring complete structural redesign
Solution Approach 2:
The block pattern creates local variations in the emitting region, where different blocks have optimized current distribution characteristics. This local quality enhancement allows specific areas to contribute more effectively to light emission, improving overall device efficiency while maintaining relatively simple overall structure
2Use of energy by moving object
If current block pattern is introduced to disperse current, then light efficiency increases, but device structure becomes more complex
Solution Approach 1:
The block pattern is integrated directly into the emitting region structure, merging the current dispersal function with the light emission function. This consolidation allows current dispersion and light generation to occur simultaneously within the same structural elements, improving light efficiency while minimizing additional structural complexity
Solution Approach 2:
The block pattern serves multiple functions: it disperses current, defines emitting regions, and potentially influences light extraction. This multi-functionality reduces the need for separate components, achieving improved light efficiency without proportionally increasing device complexity
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 effectively increases light efficiency by ensuring current dispersal across all regions of the emitting pattern, particularly within the light emitting region, thereby enhancing the overall performance of light emitting devices.
Implementation Method 1
a block pattern including a portion between the emitting pattern and the first electrode and/or on a same level as the first electrode
Implementation Method 2
LEDs generally emit light as a result of electroluminescence, i.e., recombination of electron-hole pairs
Data Source
AI summary
An emitting device including a first electrode, a second electrode spaced apart from the first electrode, an emitting pattern including a portion between the first electrode and the second electrode, and a block pattern including a portion between the emitting pattern and the first electrode and/or on a same level as the first electrode.