Stacked Organic Electronic Components with Shared Electrodes

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Solution Overview

Problem

Existing optical and electronic component arrangements face limitations in density and functionality utilization due to spacing requirements and challenges with stacked components having different functionalities, leading to inefficient use and operation.

Innovation Solution

An arrangement where organic and inorganic electronic components are stacked layer-wise on a substrate with planar electrically conductive electrodes, allowing for individual control and operation of each component in series, using a common electrode and varying polarities to distinguish which component is operated, enabling independent operation of components with different functionalities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If components are arranged side by side to achieve high functionality, then the area requirement increases, but the space utilization efficiency decreases

Engineering Contradiction:
ImprovefunctionalityVSAvoidarea requirement
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent transitions from planar side-by-side component arrangement to a three-dimensional stacked configuration. Multiple optically transparent components (OLED, OPS, OPV) are arranged vertically along the z-axis, enabling high functionality within a compact footprint. This vertical stacking allows independent electrical control of each component while minimizing the occupied area on the substrate.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Area of stationary object

If components are stacked vertically to reduce area, then the manufacturing complexity increases, but the space requirement decreases

Engineering Contradiction:
Improvespace requirementVSAvoidmanufacturing complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent employs a universal electrode structure where a single common electrode serves multiple stacked components simultaneously. The bottom electrode acts as the bottom electrode for the OLED and the top electrode for the OPS/OPV, eliminating the need for separate electrodes at each interface. This reduces the total electrode count and simplifies the manufacturing process while maintaining vertical stacking benefits.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Quantity of substance

If different functional components are stacked, then the independence of operation decreases, but the density increases

Engineering Contradiction:
Improvecomponent densityVSAvoidindependence of operation
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent divides the stacked component system into independently controllable segments through separate electrical contacts. Each component (OLED, OPS, OPV) has its own pair of electrodes that can be independently biased, allowing selective operation of individual components or combinations thereof. This segmentation enables high component density while preserving full operational independence and flexibility.

Inventive Principle:
Principle #1Segmentation

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 reduced manufacturing effort, efficient use of space, and independent operation of components with different functionalities, enabling flexible control of light emission and energy harvesting, and adaptive illumination based on environmental conditions.

Implementation Method 1

Planar electrically conductive electrodes of the components are formed at the surfaces of the components so that the components arranged vertically above one another on the substrate (z axis) are connected electrically in series and the electrodes can each be individually electrically controlled

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

supply a component with an electrical current via two electrodes connected to the component with a suitable electric voltage so that, for example, a light-emitting diode emits light

Methodology Applied
Scientific EffectLight-emitting diode effect: Light Emitting Diode

Implementation Method 3

a light-emitting diode emits light

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 4

using an organic light-emitting diode or an inorganic light-emitting diode having an organic or inorganic photovoltaic element or such a photosensor

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentUS8664650B2Arrangement comprising optically transparent and/or functional components
Publication Date: 2014.03.04 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
  • US8664650B2 patent drawing
  • US8664650B2 patent drawing
  • US8664650B2 patent drawing

AI summary

The invention relates to an arrangement including optically transparent and/or functional components. It is desirable for many applications to achieve a high functionality and variability in the utilization of electronic components over a very small area or with a small space requirement for such a design. In an arrangement in accordance with the invention, an organic electronic component and at least one further organic or inorganic electronic component are arranged layer-wise, stacked over one another, on a substrate. In this respect, planar electrically conductive electrodes at the surfaces of the components are formed such that the components are electrically connected in series and the components are each individually electrically controllable via the electrodes in accordance with their polarities.