Multilayer barrier film article with enhanced adhesion to optical surfaces

By adding urethane or urea (poly)-(meth)acrylate (poly)-silane adhesion promoters to the barrier layer, the problem of insufficient adhesion in quantum dot displays is solved, the adhesion between the barrier layer and the optical film layer is improved, oxygen and moisture are prevented from entering, and the durability and performance of the display are enhanced.

CN122295400APending Publication Date: 2026-06-263M INNOVATIVE PROPERTIES CO
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Patent Information

Application Number
CN202480075655.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-11-29
Filing Date
2024-11-15
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, the adhesion between the barrier layer and the optical film layer of quantum dot displays is insufficient, allowing oxygen and moisture to enter the quantum dot layer and affecting the display performance.

Method used

By adding urethane or urea(poly)-(meth)acrylate(poly)silane as an adhesion promoter to the top polymer barrier layer of the barrier stack, the surface chemistry and surface energy are modified to improve adhesion.

Benefits of technology

It enhances the adhesion between the barrier layer and the optical film layer, preventing oxygen and moisture from entering the quantum dot layer, and improving the long-term durability and performance stability of the display.

✦ Generated by Eureka AI based on patent content.

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Abstract

The multilayer structure includes: an optical film having an optical film layer containing quantum dots; and a multilayer barrier film article. The multilayer article has a first layer having a first main surface and a second main surface. The second main surface contacts a second layer of the multilayer article, and the first main surface contacts the optical film layer of the optical film. The first layer includes a cured (meth)acrylate base layer prepared from at least one (meth)acrylate and at least one adhesion promoter. The adhesion promoter is a urethane or a urea(poly)-(meth)acrylate(poly)silane. The adhesion strength of the first layer to the optical film layer is higher than that of the same first layer without an adhesion promoter to the optical film layer. The multilayer structure may contain additional layers and may be included in an optical device.
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Citation Information

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