Inclined Contact Electrode Layout for LED Display Connection
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Solution Overview
Problem
Existing display devices face challenges in efficiently connecting light-emitting elements with electrodes due to the limited design of electrode structures, which affects the electrical contact and the overall performance of the display.
Innovation Solution
A novel electrode structure is introduced, featuring a first electrode and a second electrode extending in a specific direction, with a light-emitting element disposed between them. The structure includes contact electrodes with a shape extending in a direction inclined relative to the main electrode direction, allowing for electrical contact with the light-emitting element on both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact electrodes are positioned to directly contact light-emitting elements, then electrical contact is improved, but separation distance between contact electrodes is reduced
Solution Approach 1:
The contact electrodes are positioned at inclined angles relative to the first and second electrodes, transitioning from a conventional parallel arrangement to a multi-dimensional configuration. This allows the contact electrodes to reach the light-emitting elements effectively while maintaining adequate separation distance between them, resolving the contradiction between electrical contact reliability and separation distance.
2Ease of manufacture
If electrode structure is simplified for ease of manufacture, then manufacturing complexity is reduced, but electrical contact with light-emitting elements is compromised
Solution Approach 1:
The electrode structure is divided into distinct functional components: first electrodes extending in a first direction, second electrodes extending in a second direction, and contact electrodes positioned at inclined angles. This segmentation allows each component to be optimized for its specific function while maintaining overall manufacturing simplicity, ensuring both ease of fabrication and reliable electrical contact.
Data Source
AI summary
A display device includes a first electrode extending in a first direction; a second electrode extending in the first direction and spaced apart from, in a second direction, the first electrode; a light-emitting element having a shape extending in a direction and between the first and second electrodes such that the direction is parallel to the second direction; a first contact electrode having a shape extending in a third direction and having at least a portion on the first electrode; and a second contact electrode having a shape extending in the third direction, spaced apart from, in a fourth direction, the first contact electrode, and having at least a portion on the second electrode, the first contact electrode electrically contacts a side of the light-emitting element, and the second contact electrode electrically contacts another side of the light-emitting element.