OLED Panel Color Tuning via Shared Electrode Voltage Control
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Solution Overview
Problem
Current organic light emitting diode (OLED) panels for color-tunable light emission have complex structures and increased thickness due to the need for multiple light emitting panels, which limits design flexibility and thickness reduction.
Innovation Solution
An OLED panel design where organic light emitting diodes of different colors are arranged on a substrate with the same voltage applied to first electrodes and different voltages applied to second electrodes, allowing independent control of each color without increasing panel thickness, using a simple structure with connection ports and wires for voltage control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light emitting panels are used to achieve color-tunable light emission, then color tunability is improved, but device thickness and structural complexity increase
Solution Approach 1:
The patent combines multiple organic light emitting diodes of different emission colors (red, green, blue) into a single integrated panel structure. All diodes share common first electrodes and are positioned on the same substrate, merging what would traditionally be separate panels into one unified device. This achieves color tunability through independent voltage control of each color's second electrode while maintaining a single-panel thickness.
Solution Approach 2:
The first electrodes serve a universal function across all organic light emitting diodes, acting as common electrical connections for multiple diodes of different colors. This multi-functional design eliminates the need for separate electrode structures for each color, reducing overall device thickness and structural complexity while maintaining the ability to independently control each color's emission.
2Adaptability or versatility
If multiple light emitting panels are used to achieve color-tunable light emission, then color tunability is improved, but device structure becomes more complex
Solution Approach 1:
The patent combines multiple organic light emitting diodes of different emission colors (red, green, blue) into a single integrated panel structure. All diodes share common first electrodes and are positioned on the same substrate, merging what would traditionally be separate panels into one unified device. This achieves color tunability through independent voltage control of each color's second electrode while maintaining a single-panel thickness.
Solution Approach 2:
The first electrodes serve a universal function across all organic light emitting diodes, acting as common electrical connections for multiple diodes of different colors. This multi-functional design eliminates the need for separate electrode structures for each color, reducing overall device thickness and structural complexity while maintaining the ability to independently control each color's emission.
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 design enables flexible color tunability with a reduced panel thickness and volume, maintaining a simple structure while allowing for independent control of each color, ensuring the panel remains thin and lightweight.
Implementation Method 1
organic light emitting diodes located on the substrate, wherein emission colors of the plurality of organic light emitting diodes are not completely the same
Data Source
AI summary
The present disclosure relates to an organic light emitting diode panel and an OLED light emitting device. The organic light emitting diode panel includes: a substrate; a plurality of organic light emitting diodes located on the substrate, wherein emission colors of the plurality of organic light emitting diodes are not completely the same, and each organic light emitting diode includes a first electrode and a second electrode. The same voltage is applied to the first electrodes of organic light emitting diodes of different emission colors, the same voltage is applied to the second electrodes of organic light emitting diodes of the same emission color, and different voltages are applied to the second electrodes of the organic emission diodes of different emission colors.