Display Electrode Layout With Concurrent Circuit Formation
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Solution Overview
Problem
The manufacturing process of display devices is complex and costly, requiring multiple layers and processes for the formation of electrodes and insulating layers, which complicates the production and increases costs.
Innovation Solution
A display device design where the first and second circuit parts, with integrated electrodes, are formed at the same layer, and the emission part includes a light emitting element between these circuit parts, with insulating layers and electrodes extending towards the emission part, simplifying the manufacturing process and reducing costs by concurrent formation of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple layers and processes are used for formation of electrodes and insulating layers, then the display device achieves proper electrical isolation and connectivity, but the manufacturing process becomes complex and costly
Solution Approach 1:
The patent combines the formation of first and second electrodes with the formation of transistor electrodes into a single layer and single manufacturing process. This merging eliminates the need for separate layers and processes that would traditionally be required for electrical isolation and connectivity, thereby reducing manufacturing complexity while maintaining proper electrical functionality.
Solution Approach 2:
The single layer containing first electrode, second electrode, and transistor electrodes serves multiple functions simultaneously: providing electrical connectivity for the light emitting element and serving as transistor electrodes for circuit control. This multi-functionality eliminates the need for separate dedicated layers for each function, simplifying the overall manufacturing process.
2Reliability
If multiple layers and processes are used for formation of electrodes and insulating layers, then the display device achieves proper electrical isolation and connectivity, but the manufacturing cost increases
Solution Approach 1:
By merging the formation of multiple electrodes and insulating layers into a single layer and single process, the patent reduces the number of manufacturing steps required. This consolidation directly lowers manufacturing costs by reducing process time, material usage, and fabrication complexity while maintaining the necessary electrical isolation and connectivity.
Solution Approach 2:
The single layer structure is designed to automatically provide both electrical connectivity and electrical isolation functions through its inherent configuration. The layer serves itself by integrating multiple functions that would traditionally require separate components and processes, thereby simplifying manufacturing and reducing costs.
3Device complexity
If components are formed concurrently in a single layer, then the manufacturing process is simplified and costs are reduced, but the electrical isolation between different circuit parts may be compromised
Solution Approach 1:
The patent applies different local properties to different regions of the single layer. The first electrode and second electrode regions are designed with conductive properties for connectivity, while the insulating layer regions are designed with insulating properties for electrical isolation. This local differentiation allows the single layer to simultaneously achieve both simplified manufacturing and proper electrical isolation.
Solution Approach 2:
The single layer is segmented into distinct functional regions: conductive regions for the first electrode, second electrode, and transistor electrodes, and insulating regions for electrical isolation. This segmentation within a unified layer structure allows concurrent formation while maintaining proper electrical isolation between different circuit parts.
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 design simplifies the manufacturing process and reduces costs by allowing concurrent formation of components, resulting in a more efficient and cost-effective production of display devices with improved light output efficiency.
Implementation Method 1
The emission part may include a light emitting element between the first electrode and the second electrode
Data Source
AI summary
A display device includes a substrate; a first circuit part and a second circuit part on the substrate and spaced from each other in a first direction; and an emission part between the first circuit part and the second circuit part, the emission part being located between the first circuit part and the second circuit part in a direction parallel to the substrate, wherein the first circuit part includes a first electrode extending to the emission part, wherein the second circuit part includes a second electrode extending to the emission part, and wherein the emission part includes a light emitting element located between the first electrode and the second electrode.