Variable Thickness OLED Intermediate Layers for Power Optimization
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Solution Overview
Problem
Current light therapy apparatuses are not portable and require users to visit hospitals, and they consume high power, making them inconvenient and costly.
Innovation Solution
A light therapy apparatus with a substrate having islands and bridges, featuring independently driven first and second light emitting elements with different intermediate layers, allowing for reduced power consumption and cost, and a method for fabricating this apparatus using specific deposition masks to optimize layer thickness and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a light therapy apparatus uses a single uniform intermediate layer thickness for all light emitting elements, then the manufacturing process is simple, but the power consumption cannot be optimized for different wavelength requirements
Solution Approach 1:
The patent applies local quality by varying the thickness of the intermediate layer according to the specific wavelength requirements of different light emitting elements. Elements emitting light at different wavelengths have differently thick intermediate layers, optimizing power consumption for each wavelength while maintaining manufacturing feasibility through a systematic approach.
2Ease of operation
If light therapy apparatus requires hospital visits for treatment, then medical supervision is ensured, but portability and accessibility are reduced
Solution Approach 1:
The patent segments the light therapy function into multiple independent light emitting elements that can be integrated into portable devices. This allows the therapy function to be separated from hospital settings, enabling home use while maintaining treatment effectiveness through controlled wavelength and intensity parameters.
3Reliability
If all light emitting elements use the same intermediate layer thickness, then manufacturing is easier, but therapeutic efficacy for different wavelengths is not optimized
Solution Approach 1:
The patent implements local quality by tailoring the intermediate layer thickness to match the specific wavelength requirements of each light emitting element. This optimization of therapeutic efficacy for different wavelengths is achieved through a systematic manufacturing approach that varies layer thickness based on functional requirements.
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 apparatus is more portable, consumes less power, and is cost-effective, enabling users to use light therapy without hospital visits while maintaining therapeutic efficacy through adjustable light wavelengths.
Implementation Method 1
The OLED may emit light by recombination of electrons and holes
Data Source
AI summary
A light therapy apparatus includes a first source voltage line including a first sub-source voltage line and a second sub-source voltage line, which are electrically insulated from each other, a first light emitting element connected to the first sub-source voltage line, where the first light emitting element includes a first intermediate layer, and a second light emitting element connected to the second sub-source voltage line, where the second light emitting element includes a second intermediate layer. The first intermediate layer has a first thickness, and the second intermediate layer has a second thickness greater than the first thickness.