一种车载宽温域柔性光学导电薄膜及其制备方法

Through multi-layer structure design and material combination, the problems of flexibility, conductivity and weather resistance of automotive optical conductive films in alternating high and low temperature and humid and hot environments have been solved, realizing stable and efficient application in automotive environments.

CN122117523BActive Publication Date: 2026-07-17TIAN CHENG (SHENZHEN) MICRO-ELECTRONIC MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIAN CHENG (SHENZHEN) MICRO-ELECTRONIC MATERIAL CO LTD
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing automotive optical conductive films suffer from poor flexibility, unstable conductivity, insufficient optical uniformity, and insufficient weather resistance under alternating high and low temperatures, humid and hot environments, and vibration and shock conditions, making it difficult to meet the stringent operating requirements of automotive smart cockpits.

Method used

The film employs a multi-layer structure design consisting of a flexible transparent substrate, an optical matching transition layer, an embedded wide-temperature-range composite conductive layer, and a weather-resistant encapsulation protective layer. It utilizes a cross-linked conductive polymer matrix to form a continuous interpenetrating network with one-dimensional metal nanowires and two-dimensional conductive nanosheets. Combined with an organic-inorganic hybrid coating, it achieves a gradual change in refractive index, forming a stable three-dimensional conductive network. The weather resistance of the film is improved by the weather-resistant encapsulation protective layer.

Benefits of technology

It achieves a balance between flexible bending performance and electrical conductivity, ensuring stable electrical conductivity in a wide temperature range, improving optical uniformity and weather resistance, adapting to the application requirements of automotive curved surfaces and irregular structures, and extending service life.

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Abstract

本发明公开了一种车载宽温域柔性光学导电薄膜及其制备方法,属于导电薄膜技术领域。该导电薄膜包括依次层叠设置的柔性透明基底、光学匹配过渡层、内嵌式宽温域复合导电层以及耐候封装保护层;内嵌式宽温域复合导电层为具有连续互穿网络结构的复合导电体系,包含交联型导电聚合物基体、具有一维线性纳米结构的一维金属纳米线与具有二维平面片状纳米结构的二维导电纳米片;光学匹配过渡层通过高折射率无机组分与低折射率有机组分的膜厚方向梯度分布,实现1.50至1.62的连续折射率渐变。本发明制备工艺适配卷对卷量产,制得的薄膜可兼顾光学性能、导电性能、柔性与宽温域稳定性,耐候性优异,可满足车载严苛工况的使用需求。
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