Patent ID: 9726786
Date: 2017-08-08
CPC Classifications: C03C,G02B

Claim:
1. A device comprising: a display comprising a user interface; a cover article disposed over the display, the cover article comprising a substrate having a major surface; and an optical coating disposed on the major surface and forming an anti-reflective surface, the optical coating comprising an anti-reflective coating, wherein the cover article exhibits a maximum hardness of about 12 GPa or greater as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater; and wherein the cover article exhibits a single side average light reflectance measured at the anti-reflective surface of about 8% or less over an optical wavelength regime in the range from about 400 nm to about 800 nm and either one or both of: