- Patent Title: Low-color scratch-resistant articles with a multilayer optical film
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Application No.: US17529352Application Date: 2021-11-18
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Publication No.: US11714213B2Publication Date: 2023-08-01
- Inventor: Robert Alan Bellman , Shandon Dee Hart , Karl William Koch, III , Charles Andrew Paulson , James Joseph Price
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent William J. Tucker
- The original application number of the division: US14480898 2014.09.09
- Main IPC: G02B1/14
- IPC: G02B1/14 ; G02B1/113 ; C03C17/34 ; G02B1/10 ; G02B1/115

Abstract:
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.
Public/Granted literature
- US20220075097A1 LOW-COLOR SCRATCH-RESISTANT ARTICLES WITH A MULTILAYER OPTICAL FILM Public/Granted day:2022-03-10
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