Sealing Substrate with Conductive Wire Member for OLED
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Solution Overview
Problem
Organic light emitting diode displays are functionally degraded by exposure to moisture and oxygen, requiring effective sealing techniques to prevent permeation.
Innovation Solution
A display device with a sealing substrate comprising a composite member and an insulating member, where conductive wire members made of staples or metal threads provide electrical conduction between metal layers, enhancing sealing and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing substrate is used to block moisture and oxygen, then reliability is improved, but device complexity increases due to multiple layers and components
Solution Approach 1:
The patent combines multiple functions into the sealing substrate: the insulating member provides both electrical insulation and structural support, while the composite member (carbon fibers in resin) provides both mechanical strength and moisture/oxygen barrier properties. The conductive wire member integrates electrical conduction through the insulating material itself, eliminating the need for separate conductive pathways.
Solution Approach 2:
The sealing substrate uses composite materials to achieve multiple properties simultaneously: the insulating member is made from resin-based composite materials that provide both insulation and structural integrity, while the composite member uses carbon fibers embedded in resin to provide mechanical strength, dimensional stability, and barrier properties against moisture and oxygen penetration.
2Ease of manufacture
If conductive wire members are used to provide electrical conduction, then ease of manufacture is improved through automation, but device complexity increases due to additional components
Solution Approach 1:
The patent replaces traditional mechanical wiring methods with conductive wire members that are directly embedded into the insulating member during the lamination process. This allows electrical conduction to be established through the insulating material itself rather than requiring separate mechanical wire routing and connection steps, enabling automation while actually reducing the number of discrete components.
Solution Approach 2:
The conductive wire members are positioned and embedded into the insulating member before the final lamination and curing process. This preliminary action allows electrical connections to be pre-established during assembly, enabling automated manufacturing processes without requiring subsequent complex wiring steps.
3Reliability
If multiple metal layers are used for electrical conduction, then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The insulating member serves as an intermediary that integrates and positions the conductive wire members during the lamination process. The wire members pass through the insulating member at predetermined locations, automatically establishing aligned electrical connections between metal layers without requiring high-precision manual alignment, as the insulating member itself provides the positioning framework.
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
Improves sealing function, luminance uniformity, and simplifies the structure and manufacturing process by automating electrical conduction and reducing parts, while effectively blocking moisture and oxygen.
Implementation Method 1
a conductive wire member successively passing through at least two points of each of the first metal layer, the insulating member, and the second metal layer, and secured to the sealing substrate to provide conduction of the first metal layer and the second metal layer
Implementation Method 2
a sealing substrate secured to the substrate by a bonding layer
Data Source
AI summary
A display device includes a display unit, a sealing substrate, a first metal layer, a second metal layer, and a conductive wire member. The display unit is formed over a substrate. A sealing substrate is secured to the substrate by a bonding layer, and comprising a composite member and an insulating member. A first metal layer is formed over the inner surface of the sealing substrate facing the substrate, and a second metal layer is formed over the outer surface of the sealing substrate. A conductive wire member successively passes through at least two points of each of the first metal layer, the insulating member, and the second metal layer, and is secured to the sealing substrate to provide conduction of the first metal layer and the second metal layer.