Auxiliary Electrode Phasing for Light-Emitting Element Alignment
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Solution Overview
Problem
Existing display devices face challenges in efficiently aligning light emitting elements, which affects their deflection alignment efficiency.
Innovation Solution
The display device incorporates a configuration with first and second alignment electrodes and auxiliary electrodes, applying alignment and auxiliary signals of different phases to improve the alignment of light emitting elements, utilizing a method that includes forming and aligning light emitting elements between these electrodes with specific voltage polarities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional alignment methods are used, then the alignment process is simple, but the deflection alignment efficiency of light emitting elements is insufficient
Solution Approach 1:
The alignment electrode system is segmented into multiple independent electrodes (first alignment electrode, second alignment electrode, first auxiliary electrode, second auxiliary electrode) that can be controlled separately. This segmentation allows independent optimization of alignment and deflection functions, improving deflection alignment efficiency while maintaining manageable complexity through modular design.
Solution Approach 2:
Auxiliary electrodes are introduced as intermediary elements between the alignment electrodes and the light emitting elements. These auxiliary electrodes mediate the electric field distribution to enhance deflection alignment efficiency, acting as intermediaries that optimize the interaction between the alignment system and the light emitting elements without requiring complete redesign of the entire alignment structure.
2Manufacturing precision
If alignment signal is applied to alignment electrodes, then light emitting elements can be aligned, but deflection alignment efficiency remains insufficient without auxiliary electrodes
Solution Approach 1:
Different regions of the alignment system are assigned different functional qualities: the alignment electrodes provide the primary alignment electric field, while the auxiliary electrodes provide localized enhancement fields specifically targeted at improving deflection alignment. This local quality differentiation allows the system to achieve both high alignment precision and improved deflection alignment efficiency through region-specific optimization.
Solution Approach 2:
The system utilizes parameter changes in the electric field configuration by applying different voltage signals (alignment signal and auxiliary signals with different phases) to different electrodes. By dynamically adjusting these electrical parameters, the system achieves enhanced deflection alignment efficiency while maintaining precise alignment control, resolving the contradiction between precision and efficiency.
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 configuration enhances the deflection alignment efficiency of light emitting elements by directing the electric field in a forward direction, improving the alignment process.
Implementation Method 1
a first alignment electrode and a second alignment electrode spaced apart from each other, a light emitting element between the first alignment electrode and the second alignment electrode... an alignment signal is configured to be applied to the first alignment electrode... a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode
Data Source
AI summary
A display device and a method of manufacturing the same are provided. The display device includes a first alignment electrode and a second alignment electrode spaced apart from each other, a light emitting element between the first alignment electrode and the second alignment electrode, a first auxiliary electrode at a first side of the light emitting element in a plan view, and separated from the first alignment electrode, and a second auxiliary electrode at a second side of the light emitting element in a plan view, and separated from the second alignment electrode, wherein an alignment signal is configured to be applied to the first alignment electrode, and wherein a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode.