OLED Module Vertical Electric Connection Structure
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Solution Overview
Problem
Conventional OLED modules require a large area for electrode wiring, making it impossible to reduce the size of the elements effectively.
Innovation Solution
The implementation of a vertical electric connection structure in OLED modules, which includes a substrate with OLED clusters, an anode wire structure comprising a bottom layer wire set, insulation layer, middle layer wire set, and top layer wire set, and a cathode wire structure, allowing for vertical connections that replace parallel wire area with a vertical connection structure, thereby reducing the overall module size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional parallel electrode wiring structure is used, then electrical connectivity is achieved, but the area occupied by the OLED module becomes too large
Solution Approach 1:
The patent transitions from a planar parallel wiring structure to a multi-layer stacked wiring structure, utilizing the vertical dimension (z-axis) to route connections. The first and second wirings are positioned in different layers with corresponding through-holes, allowing electrical connections to pass through the vertical space rather than occupying horizontal space, thereby reducing the overall module area.
Solution Approach 2:
The wiring structure employs nested layers where the first wiring layer is embedded within the substrate, the second wiring layer is positioned above it, and insulation layers are nested between them. This nested arrangement allows multiple wiring paths to coexist in a compact vertical stack, maximizing space utilization and minimizing the horizontal footprint of the module.
2Area of stationary object
If more wiring layers are added to reduce area, then module size is reduced, but manufacturing complexity increases
Solution Approach 1:
The wiring structure is segmented into distinct functional layers: a first wiring layer for horizontal connections, a second wiring layer for vertical connections, and insulation layers separating them. This segmentation allows each layer to be manufactured and positioned independently, simplifying the overall manufacturing process compared to attempting to create a complex single-layer routing pattern.
Solution Approach 2:
Insulation layers serve as intermediary elements between the first and second wiring layers, providing electrical isolation while maintaining structural integrity. These intermediary insulation layers facilitate the manufacturing process by allowing standard deposition techniques to be used for each layer separately, reducing the complexity of simultaneous multi-layer fabrication.
Data Source
AI summary
An OLED module equipped with vertical electric connection structure includes a substrate, a plurality of OLED clusters, an anode wire structure and a cathode wire structure. The substrate is extended toward a first direction. The OLED clusters are located on the substrate in the first direction. The anode wire structure includes a bottom layer wire set, an insulation layer, a middle wire layer set and a top layer wire set. The bottom layer wire set is located on the substrate. The insulation layer is located on the bottom layer wire set. The top layer wire set is located on the insulation layer. The cathode wire structure is located on the substrate and extended axially thereof. The middle layer wire set runs through the insulation layer and forms vertical connection between the bottom layer wire set and the top layer wire set.