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Scratch-resistant articles with a gradient layer

  • US 9,703,011 B2
  • Filed: 04/25/2014
  • Issued: 07/11/2017
  • Est. Priority Date: 05/07/2013
  • Status: Active Grant
First Claim
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1. An article comprising:

  • a substrate having a surface; and

    an optical film comprising a metal oxynitride disposed on the surface forming a coated surface,wherein the article exhibits a color shift of less than 2, when viewed at an incident illumination angle in the range from about 5 degrees to about 60 degrees from normal incidence under a CIE F2 illuminant, andwherein the article exhibits an average transmittance or average reflectance having an average oscillation amplitude of about 10 percentage points or less, over an optical wavelength regime.

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