Imprinted Bi-layer Micro-Structure Transparent Electrodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current transparent electrodes for displays and touch screens face challenges with limited transparency and conductivity, high production costs, and mechanical stress susceptibility, along with complex manufacturing processes that require multiple steps and alignment precision.
Innovation Solution
The development of an imprinted multi-layer micro-wire structure with electrically conductive micro-wires formed in micro-channel structures over a substrate, featuring a bottom, connecting, and top layer with micro-channels and micro-wires that are electrically connected but isolated, allowing for more complex and interconnected patterns with simplified manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transparent conductive metal oxides are used to form electrodes, then the electrodes can be deposited and patterned on substrates, but the transparency and conductivity are limited and the electrodes crack under mechanical stress
Solution Approach 1:
The electrode is divided into multiple discrete metal wire segments arranged in a grid pattern, rather than using continuous transparent conductive oxide layers. This segmentation allows each wire to independently bear mechanical stress without causing cracks across the entire electrode structure.
Solution Approach 2:
The invention uses metal wires (such as silver, aluminum, or their alloys) instead of transparent conductive metal oxides, creating a composite structure that combines high electrical conductivity with mechanical flexibility and stress resistance.
2Reliability
If thicker layers of metal oxides or metals are used to increase conductivity, then the electrical resistivity decreases, but the transparency of the electrodes is reduced
Solution Approach 1:
The electrode is divided into multiple discrete metal wire segments arranged in a grid pattern, rather than using continuous transparent conductive oxide layers. This segmentation allows each wire to independently bear mechanical stress without causing cracks across the entire electrode structure.
Solution Approach 2:
The invention uses metal wires (such as silver, aluminum, or their alloys) instead of transparent conductive metal oxides, creating a composite structure that combines high electrical conductivity with mechanical flexibility and stress resistance.
3Illumination intensity
If fine conductor patterns are made by laser-cured masking, inkjet printing, gravure printing, micro-replication, or micro-contact printing, then the transparency can be maintained, but the manufacturing process becomes complex and costly
Solution Approach 1:
The electrode is divided into multiple discrete metal wire segments arranged in a grid pattern, rather than using continuous transparent conductive oxide layers. This segmentation allows each wire to independently bear mechanical stress without causing cracks across the entire electrode structure.
Solution Approach 2:
The invention uses metal wires (such as silver, aluminum, or their alloys) instead of transparent conductive metal oxides, creating a composite structure that combines high electrical conductivity with mechanical flexibility and stress resistance.
4Adaptability or versatility
If transparent conductive metal oxides are used, then the electrodes can be formed on various substrates, but the production cost increases and the current-carrying capacity is limited
Solution Approach 1:
The electrode is divided into multiple discrete metal wire segments arranged in a grid pattern, rather than using continuous transparent conductive oxide layers. This segmentation allows each wire to independently bear mechanical stress without causing cracks across the entire electrode structure.
Solution Approach 2:
The invention uses metal wires (such as silver, aluminum, or their alloys) instead of transparent conductive metal oxides, creating a composite structure that combines high electrical conductivity with mechanical flexibility and stress resistance.
Data Source
AI summary
An imprinted micro-structure includes a substrate having an edge area and a central area separate from the edge area. A cured bottom-layer, connecting layer, and top layer are formed over the substrate, each with a corresponding imprinted micro-channel having a cured micro-wire. The bottom micro-wire is in the central area and the edge area. The connecting-layer micro-wire contacts at least a portion of the bottom-layer micro-wire in the edge area. A cured edge micro-wire in the top layer contacts at least a portion of the connecting-layer micro-wire in the edge area. A top-layer micro-wire is located in a top-layer micro-channel and is separate from the edge micro-wire and bottom micro-wire. The bottom-layer micro-wire in the central area is electrically connected to the edge micro-wire in the edge area and is electrically isolated from the top-layer micro-wire.