Display Electrode Layout With Segmented Bonds for Alignment Tolerance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display devices require precise alignment of first connection electrodes of a light emitting element layer and second connection electrodes of pixel circuit units, which is a complex and time-consuming process.
Innovation Solution
A display device design where the second connection electrodes include sub-connection electrodes that are spaced from each other and bonded to the first connection electrodes, eliminating the need for precise alignment, and a manufacturing method that forms these electrodes and insulating layers to enable bonding without alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If precise alignment of first connection electrodes and second connection electrodes is required, then electrical connectivity between pixel circuit units and light emitting elements is ensured, but manufacturing complexity and production time increase
Solution Approach 1:
The second connection electrode is segmented into multiple sub-connection electrodes that are spaced apart from each other. This segmentation allows the sub-connection electrodes to be bonded to the first connection electrode without requiring precise alignment, as the spaced arrangement provides tolerance for misalignment while maintaining electrical connectivity.
2Reliability
If precise alignment of first connection electrodes and second connection electrodes is required, then electrical connectivity between pixel circuit units and light emitting elements is ensured, but manufacturing process complexity increases
Solution Approach 1:
The second connection electrode is divided into multiple sub-connection electrodes spaced apart from each other. This segmentation simplifies the manufacturing process by eliminating the need for complex alignment mechanisms and procedures, as the spaced arrangement inherently provides alignment tolerance.
3Reliability
If precise alignment of first connection electrodes and second connection electrodes is required, then electrical connectivity is ensured, but production efficiency decreases
Solution Approach 1:
The second connection electrode is segmented into multiple sub-connection electrodes that are spaced apart. This segmentation improves production efficiency by allowing faster, less precise bonding processes, reducing the time and complexity of the manufacturing operation while maintaining reliable electrical connectivity.
Data Source
AI summary
The present disclosure may provide display device and a method for manufacturing the same. The display device includes a substrate including pixel circuit units, a plurality of pixel electrodes on the pixel circuit units of the substrate and including first connection electrodes thereon and a plurality of light emitting elements on the pixel electrodes and including second connection electrodes bonded to the first connection electrodes, wherein each of the second connection electrodes includes a plurality of sub-connection electrodes that are spaced from each other.