OLED Display Semiconductor Static Electricity Dissipation Bridge
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Solution Overview
Problem
Conventional OLED display manufacturing processes face challenges in minimizing semiconductor characteristic deterioration due to static electricity, which affects the performance and quality of the display devices.
Innovation Solution
The solution involves a display device structure with a substrate, semiconductor layers, insulation layers, and electrodes, where the insulation layers form openings and contact holes to separate and connect the semiconductor layers, and a method of manufacturing that includes forming bridge portions and removing them to create spaces between layers, thereby minimizing static electricity impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If semiconductor layers are formed in island form for thin film transistors and capacitors, then device integration is achieved, but semiconductor characteristics are deteriorated by static electricity in subsequent processes
Solution Approach 1:
A bridge portion made of conductive material is introduced as an intermediary element between adjacent island-form semiconductor layers. This bridge portion acts as a mediator that provides a controlled electrical connection path, preventing static electricity accumulation that would otherwise occur with isolated island structures, thereby protecting semiconductor characteristics while maintaining device integration
Solution Approach 2:
The invention converts the potentially harmful effect of static electricity in island-structured semiconductors into a beneficial feature by intentionally creating a conductive bridge portion. This bridge transforms the static electricity problem into a controlled electrical connection mechanism that actually improves device performance and reliability
2Reliability
If insulation layers are added to separate semiconductor layers, then static electricity impact is reduced, but device structure becomes more complex
Solution Approach 1:
The bridge portion is designed to serve multiple functions simultaneously: it provides electrical connection between semiconductor layers, acts as a static electricity dissipation path, and serves as part of the overall device structure. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device structure complexity while achieving the goal of protecting semiconductor characteristics
Data Source
AI summary
A display device including: a substrate; a first semiconductor layer disposed on the substrate; a second semiconductor layer disposed on the substrate and adjacent to the first semiconductor layer; a first insulation layer disposed on both the first semiconductor layer and the second semiconductor layer, the first insulation layer including a first opening forming a space between the first semiconductor layer and the second semiconductor layer; and a second insulation layer disposed on the first insulation layer and that fills the first opening.