Display Panel Metallic Pattern Layer for Moisture-Resistant Lines
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Solution Overview
Problem
Display panels are prone to moisture penetration and subsequent oxidation of lines, leading to damage and reduced performance.
Innovation Solution
A display apparatus with a metallic pattern layer formed on the low-potential voltage line in the non-display area to delay moisture penetration and prevent oxidation of lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional display panel structure is used, then the manufacturing process is simple, but moisture penetration occurs leading to line oxidation and panel damage
Solution Approach 1:
The patent applies preliminary action by forming a metallic pattern layer in advance within the non-display area before the display panel is assembled. This metallic pattern layer serves as a pre-established moisture barrier that delays moisture penetration pathways, preventing moisture from reaching and oxidizing the voltage lines in the non-display area. The protective structure is built proactively rather than reactively, addressing the moisture penetration issue before it causes damage.
2Weight of moving object
If the display panel is thinned and lightened, then weight and thickness are reduced, but moisture penetration resistance decreases
Solution Approach 1:
The patent applies local quality by concentrating the moisture protection function specifically in the non-display area where voltage lines are located, rather than uniformly thickening the entire panel. The metallic pattern layer is selectively formed only in the non-display area, providing enhanced moisture resistance locally where needed while maintaining the overall thin and light design of the display panel in the display area.
3Reliability
If protective layers are added to prevent moisture penetration, then reliability improves, but manufacturing complexity and production energy increase
Solution Approach 1:
The patent applies merging by integrating the moisture protection function with the existing metallic layers and patterns already present in the non-display area of the display panel. Rather than adding separate protective layers, the invention utilizes and repurposes the existing metallic pattern layer to serve dual functions: electrical connectivity and moisture barrier. This consolidation reduces manufacturing steps and avoids the complexity of incorporating additional protective layers.
Data Source
AI summary
A display apparatus includes a substrate including a display area in which a plurality of pixels is disposed, and a first non-display area positioned outside the display area and surrounding the display area. The display apparatus further includes a low-potential voltage line disposed in the first non-display area. The display apparatus further includes a metallic pattern layer disposed on the low-potential voltage line.