高粘附性、高透明液晶聚酰亚胺薄膜及制备方法
By inducing the vertical orientation of mesocrystalline units and the orientation of polar groups using a spatial electric field, the problems of transparency, expansion, and adhesion of polyimide films were solved, and a highly adhesive liquid crystal polyimide film with excellent optical properties and mechanical reliability was prepared, which is suitable for flexible electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGHAN UNIVERSITY
- Filing Date
- 2026-02-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polyimide films cannot simultaneously achieve high transparency, low coefficient of thermal expansion, and high interfacial adhesion, which makes them prone to delamination and peeling in flexible electronic devices, affecting the long-term reliability of the devices.
By inducing the vertical orientation of mesocrystalline units through a spatial electric field, and combining the migration and orientation of polar groups towards the substrate interface, electrostatic interactions and interfacial chemical bonding are enhanced, thus preparing highly adhesive and highly transparent liquid crystal polyimide films.
This achieves a combination of high transparency and low coefficient of thermal expansion, significantly improving the interfacial adhesion and mechanical reliability of the film, meeting the stringent requirements of high-end flexible electronic devices.
Smart Images
Figure CN121718048B_ABST
Abstract
Citation Information
Patent Citations
Polyimide film
CN101796105B
Polyimide-based composite film and preparation method thereof
CN107698785A
Flexible transparent polyimide film, flexible liquid crystal display and preparation method
CN111808424A
Polyamic acid composition, polyimide copper-clad plate and circuit board
CN112239539A