# Multilayer Cyclo-Olefin Polymer Films for Enhanced OLED Encapsulation

## TL;DR

This paper introduces a new multilayer polymer film to better protect OLEDs, making them more efficient and cost-effective for large displays.

## Contribution

A novel multilayer cyclo-olefin polymer film is proposed for OLED encapsulation, reducing cost and improving performance.

## Key findings

- The multilayer film significantly reduces process time and cost while maintaining high barrier performance.
- Ultraviolet or plasma treatment improved substrate–film adhesion and reduced water vapor transmission rate.
- The optimized structure proved feasible for OLED encapsulation, enhancing production yield and minimizing costs.

## Abstract

The development of organic light-emitting diodes (OLEDs) for high-resolution, large-area displays relies on effective encapsulation technology. Accordingly, this study proposes a novel multilayer structure utilizing a cyclo-olefin polymer-based film. This solution significantly reduces process time and cost while achieving remarkable barrier performance. Optimization involved presenting various models and enhancing substrate–film adhesion via ultraviolet or plasma treatment, consequently improving water vapor transmission rate. Furthermore, the optimized structure’s feasibility as an OLED encapsulation layer was confirmed. These results promise to enhance core technological capabilities, improving production yield and minimizing costs—key factors for next-generation displays.