一种折叠屏用光学导电薄膜及其制备方法
Through multi-layer structural design and process optimization, the performance mismatch problem of traditional optical conductive films in foldable screen applications has been solved, achieving a balance between mechanical strength, optical transmittance and conductivity, thereby improving the display clarity, touch sensitivity and lifespan of foldable screens.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIAN CHENG (SHENZHEN) MICRO-ELECTRONIC MATERIAL CO LTD
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional optical conductive films have several drawbacks in foldable screen applications, including a mismatch between mechanical flexibility and structural strength, weak interlayer bonding that is easy to peel off, difficulty in balancing optical transmittance and conductivity, significant performance degradation after folding cycles, and insufficient surface scratch and wear resistance. These issues affect the display clarity, touch sensitivity, and lifespan of foldable screens.
Employing a multi-layered structure design, including a composite substrate, an interface transition layer, a gradient refractive index optical adjustment layer, a hybrid conductive layer, and a scratch-resistant and wear-resistant layer, the material undergoes processes such as blending modification, electron beam evaporation, micro-grooving coating, and UV curing to form a polyimide and transparent polyamide blended modification layer, an alumina and silicon oxide mixed coating layer, a niobium oxide and silicon oxide gradient composite layer, silver nanowires and graphene sheets, a PEDOT:PSS composite conductive layer, and a UV-curable resin protective layer. This achieves tight bonding and performance optimization among the layers.
The film's mechanical strength, optical transmittance, electrical conductivity, and scratch and abrasion resistance have been improved, ensuring the stability of display clarity, touch sensitivity, and lifespan during foldable screen use, thus meeting the long-term stable use requirements of foldable screens.
Smart Images
Figure CN121862500B_ABST