Organic Compound for Charge Balance and Efficiency
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Solution Overview
Problem
Current organic electric elements face challenges in maximizing luminous efficiency, reducing driving voltage, and extending lifespan, as these factors are interlinked and require an optimal combination of energy levels and material properties across various layers, which is difficult to achieve with existing materials.
Innovation Solution
The use of a specific compound represented by Formula 1 in at least three layers of the organic material layer, such as the hole transport layer, emission-auxiliary layer, and light emitting layer, to enhance charge balance and thermal stability, thereby improving luminous efficiency, lowering driving voltage, and increasing the lifespan of the organic electric element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If efficiency is increased, then driving voltage is relatively lowered, but achieving optimal efficiency requires complex optimization of multiple material properties and energy levels
Solution Approach 1:
The patent changes the chemical structure parameters of the organic compound by introducing specific substituents (R1-R6) at defined positions, which systematically adjusts energy levels, mobility, and interfacial properties to achieve optimal efficiency without complex multi-material optimization
Solution Approach 2:
The designed organic compound serves multiple functions simultaneously: it acts as a host material, charge transport medium, and stability enhancer across different layers (hole transport layer, emission layer, electron transport layer), eliminating the need for separate optimization of multiple specialized materials
2Reliability
If a specific compound is used in multiple layers to improve performance, then luminous efficiency and lifespan are enhanced, but the device structure becomes more complex
Solution Approach 1:
The patent merges the functional roles of different organic compounds by using a single designed compound (Formula 1) across multiple layers (hole transport layer, emission layer, electron transport layer), thereby simplifying the overall device structure while maintaining or enhancing reliability through consistent material properties
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 implementation of the compound in multiple layers leads to significant improvements in luminous efficiency, driving voltage reduction, and extended lifespan of the organic electric element, demonstrating electrochemical synergy and improved charge balance.
Implementation Method 1
an organic light emitting phenomenon refers to a phenomenon in which electric energy is converted into light energy of an organic material
Implementation Method 2
Joule heating generated during operation
Data Source
AI summary
The present invention provides an organic electric element and an electronic device thereof, wherein at least three of organic material layers of the organic electric element comprise the compound capable of increasing the luminous efficiency, lowering the driving voltage, increasing the heat resistance, improving color purity and lifetime of the organic electric element.