Touch Substrate Protection Structure for Vehicle Durability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional touch control products for vehicles lack sufficient resistance to high temperature and humidity, leading to corrosion of metallic wires and performance degradation after extended exposure, failing to meet durability requirements.
Innovation Solution
A touch substrate with a protection structure comprising alternately laminated organic and inorganic layers, specifically two to three layers each, providing enhanced resistance to moisture and oxygen, and a method for manufacturing this substrate involving sequential deposition of transparent conductive layers, inorganic layers made of SiN x O y, and organic layers for improved density and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional touch control products are used in vehicle-mounted applications, then they can provide basic touch control functionality, but they lack sufficient resistance to high temperature and humidity, leading to corrosion of metallic wires and performance degradation
Solution Approach 1:
The patent applies composite materials by using a multi-layer protection structure comprising alternating organic and inorganic layers. The inorganic layers (such as silicon nitride or silicon oxide) provide barrier properties against moisture and oxygen, while the organic layers provide additional protection and flexibility. This composite structure effectively prevents corrosion of metallic wires in high-temperature and high-humidity environments, solving the reliability issue without compromising the touch control functionality.
Solution Approach 2:
The patent uses thin film encapsulation layers to protect the metallic wires and internal structures. The thin inorganic and organic layers form a flexible protective barrier that conforms to the substrate while providing effective protection against environmental factors. This approach maintains the flexibility and thin-profile requirements of vehicle-mounted touch control devices while significantly improving resistance to corrosion.
2Reliability
If the protection structure with multiple organic and inorganic layers is implemented, then resistance to moisture and oxygen is enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
The protection structure is segmented into multiple distinct layers with specific functions. The inorganic layers provide primary barrier protection against moisture and oxygen penetration, while the organic layers provide secondary protection and environmental stability. This segmentation allows each layer to be optimized for its specific protective function, achieving high reliability through a systematic multi-layer approach that can be manufactured using standard semiconductor fabrication processes.
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
The solution effectively protects metallic wires from corrosion in high-temperature and high-humidity environments, enabling touch control products to operate reliably for extended periods, thus meeting the durability requirements for vehicle-mounted applications.
Implementation Method 1
sequential deposition of transparent conductive layers, inorganic layers made of SiN x O y, and organic layers for improved density and compactness
Data Source
AI summary
A touch substrate, a method for manufacturing the same and a touch control device are provided. The touch substrate includes a touch region, and a wiring region arranged adjacent to the touch region and covered with a protection structure. The protection structure includes at least two organic layers and at least two inorganic layers arranged alternately one on another.