Display Panel Connection Structure for Corrosion-Stable Signal Transfer
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Solution Overview
Problem
The first conductive layer in existing mini LED and micro LED display panels is prone to corrosion, leading to signal interference and reduced transmission performance due to exposure, especially when not connected with other components.
Innovation Solution
A connection structure is designed with a substrate, a first conductive layer covered by an insulating layer that defines through-holes for a second conductive layer to be electrically coupled, enhancing corrosion resistance and signal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first conductive layer is exposed to transmit electrical signals, then electrical signal transmission is enabled, but the conductive layer is prone to corrosion and signal interference
Solution Approach 1:
The patent introduces a second conductive layer as an intermediary component between the first conductive layer and the external environment. This second conductive layer is disposed in the through-hole of the insulating layer and electrically coupled with the first conductive layer, serving as a protective mediator that prevents direct exposure of the first conductive layer to corrosive environments while maintaining electrical signal transmission functionality
Solution Approach 2:
The patent applies local quality by selectively exposing only the necessary portions of the first conductive layer through through-holes in the insulating layer, while covering other portions with the insulating layer and second conductive layer. This localized approach ensures electrical signal transmission at critical points while providing corrosion protection in non-critical areas
2Object-affected harmful factors
If the first conductive layer is covered by insulating layer, then corrosion resistance is improved, but electrical signal transmission is blocked
Solution Approach 1:
The patent segments the insulating layer to create through-holes that allow electrical signal transmission while maintaining overall coverage for corrosion protection. The insulating layer is divided into covered regions and open regions (through-holes), enabling simultaneous achievement of protection and conduction functions in different spatial zones
Solution Approach 2:
The patent implements a nested structure where the second conductive layer is disposed within the through-hole of the insulating layer, and the first conductive layer is electrically coupled to the second conductive layer. This nested arrangement allows the insulating layer to provide corrosion protection while the through-hole and nested second conductive layer enable electrical signal transmission
Data Source
AI summary
A display unit and a display panel are provided. The display unit includes a light-emitting structure and a connection structure disposed at a periphery of the light-emitting structure. The connection structure includes a substrate, a first conductive layer, an insulating layer, and a second conductive layer. The first conductive layer is disposed at a side of the substrate. The insulating layer is disposed at the side of the substrate and covers the first conductive layer. The insulating layer at a side of the first conductive layer away from the substrate defines at least one first through-hole to make part of the first conductive layer exposed. The second conductive layer is disposed at a side of the insulating layer away from the substrate. The second conductive layer is also disposed in the at least one first through-hole and electrically coupled with the first conductive layer.