Low-color scratch-resistant articles with a multilayer optical film

Embodiments of this disclosure pertain to articles that exhibit scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle in the range from about 0 degrees to about 60 degrees from normal...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Koch, III, Karl William, Bellman, Robert Alan, Hart, Shandon Dee, Paulson, Charles Andrew, Price, James Joseph
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Embodiments of this disclosure pertain to articles that exhibit scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle in the range from about 0 degrees to about 60 degrees from normal under an illuminant. In one or more embodiments, the articles include a substrate, and an optical film disposed on the substrate. The optical film includes a scratch-resistant layer and an optical interference layer. The optical interference layer may include one or more sub-layers that exhibit different refractive indices. In one example, the optical interference layer includes a first low refractive index sub-layer and a second a second high refractive index sub-layer. In some instances, the optical interference layer may include a third sub-layer.