Organic Optoelectronic Component with Integrated Light Detection
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Solution Overview
Problem
Existing organic optoelectronic components face challenges in maintaining constant luminance due to ambient condition changes and aging processes, requiring complex and costly external sensor systems for light regulation, which are not easily automated.
Innovation Solution
An integrated organic optoelectronic component with a common substrate for both light emitting and detecting elements, allowing for internal light guiding and ambient light detection, enabling automatic adjustment of light intensity without external sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If external sensors (photodiodes, photoconductors, phototransistors, photothyristors) are used to detect light and control the luminous source, then automatic light regulation is achieved, but device complexity and cost increase significantly
Solution Approach 1:
The patent merges the light emitting element and light detecting element into a single integrated component structure. The detecting element is positioned in optical communication with the emitting element, allowing the system to detect its own emitted light and automatically regulate without external sensors or complex interconnections.
Solution Approach 2:
The integrated component serves multiple functions: the emitting element produces light for illumination, while the detecting element simultaneously monitors the light output for feedback control. This multi-functionality eliminates the need for separate external sensing systems.
2Extent of automation
If external sensors with external interconnection are used for light detection, then automatic control is possible, but additional costs are incurred
Solution Approach 1:
By combining the detecting element with the emitting element in a single integrated structure, the patent eliminates the need for separate external sensors and their associated interconnection components, thereby reducing manufacturing costs while maintaining automatic control capability.
3Loss of energy
If manual dimming is used to regulate light output, then energy waste is reduced compared to no control, but precision and automation are insufficient
Solution Approach 1:
The detecting element provides real-time feedback about the light output from the emitting element. This feedback signal is used to automatically adjust the drive current or voltage to the emitting element, enabling precise automatic regulation that responds dynamically to changing conditions rather than relying on static manual settings.
4Measurement precision
If the light detecting layer is shaded from ambient light, then detection precision for internally generated light is improved, but the structure becomes more complex
Solution Approach 1:
The patent extracts or removes the harmful influence of ambient light by providing shading means that selectively block ambient light from reaching the detecting layer while allowing the detecting element to still receive light from the emitting element. This separation of detection targets improves precision without requiring complete isolation of the detector.
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 solution allows for precise, automated adjustment of light intensity, reducing complexity and cost by using internal light detection, thereby maintaining consistent luminance under varying conditions and slowing aging of the light source.
Implementation Method 1
at least one organic light emitting element comprising an organic functional layer stack having at least one organic light emitting layer between two electrodes... which can emit visible light during operation through the electrodes
Implementation Method 2
at least one organic light detecting element... comprising an organic functional layer stack having at least one organic light detecting layer
Data Source
AI summary
An organic optoelectronic component and a method for operating an organic optoelectronic component are disclosed. In an embodiment an organic optoelectronic component includes an organic light emitting element including an organic functional layer stack having an organic light emitting layer between two electrodes and an organic light detecting element including a first organic light detecting element including a first organic light detecting layer, and a second organic light detecting element including a second organic light detecting layer, wherein the organic light emitting element and the organic light detecting element are arranged laterally adjacent on a common substrate, wherein the first organic light detecting element is configured to detect ambient light, wherein the second organic light detecting layer of the second organic light detecting element is arranged between two non-transparent layers, the non-transparent layers shade the second organic light detecting layer of the second organic light detecting element from ambient light.