Display Panel Connection Electrode Segmentation for Afterimage Reduction
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Solution Overview
Problem
Existing display panels suffer from significant afterimage issues, which affect their reliability and user experience, particularly in multimedia electronic devices.
Innovation Solution
A display panel design that includes a driving element layer with a first and second pixel driver, a light emitting element with specific electrode configurations, and a connection electrode with a metal layer, all of which work together to reduce afterimage effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional connection structures are used between pixel drivers and light emitting elements, then manufacturing is simpler, but afterimage defects occur significantly
Solution Approach 1:
The connection electrode is divided into multiple segments: a first connection electrode connected to the first pixel driver, a second connection electrode connected to the second pixel driver, and a third connection electrode connected to the light emitting element. This segmentation allows independent optimization of each connection path, reducing afterimage effects while maintaining manageable manufacturing complexity through modular assembly.
Solution Approach 2:
A separate third connection electrode acts as an intermediary between the pixel drivers and the light emitting element. This intermediary structure enables better electrical connection and signal transmission, reducing afterimage defects without requiring direct complex integration between all components.
2Reliability
If direct connection between pixel driver and light emitting element is used, then device complexity is reduced, but connection reliability deteriorates
Solution Approach 1:
The first connection electrode, second connection electrode, and third connection electrode are merged into a single integrated connection structure that electrically connects all three components (first pixel driver, second pixel driver, and light emitting element). This merging approach improves connection reliability while avoiding the need for separate discrete connections, thus not significantly increasing device complexity.
Data Source
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AI summary
A display panel includes: a driving element layer including: a first pixel driver including a first conductive pattern; and a second pixel driver including a second conductive pattern; a light emitting element on the driving element layer, and including a first electrode, an intermediate layer on the first electrode, and a second electrode on the intermediate layer; a connection electrode on the driving element layer, and electrically connected with the first pixel driver and the second electrode; and a metal layer between the second conductive pattern and the connection electrode in a cross-sectional view.