CPC G02B 1/11 (2013.01) [C03C 15/00 (2013.01); C23C 14/021 (2013.01); C23C 14/042 (2013.01); C23C 16/0227 (2013.01); C23C 16/042 (2013.01); G02B 1/118 (2013.01); G02B 1/14 (2015.01); G02B 5/0221 (2013.01); G02B 5/0268 (2013.01); G02B 27/4205 (2013.01); G02B 27/4272 (2013.01); G02B 2207/101 (2013.01)] | 21 Claims |
1. A display article, comprising:
a substrate comprising a thickness and a primary surface; and
the primary surface having defined thereon a diffractive surface region,
wherein the diffractive surface region comprises a plurality of structural features that comprises a plurality of different heights in a multimodal distribution,
wherein the multimodal distribution comprises a plurality of modes, with each mode being distinguished by a decrease in area fraction of at least 20% from a peak surface height value of the mode, and
wherein the substrate exhibits a sparkle of less than 4%, as measured by pixel power deviation (PPD140) at an incident angle of 0° from normal, a distinctness of image (DOI) of lessthan 80% at an incident angle of 20° from normal, and a transmittance haze of less than 20% from an incident angle of 0° from normal.
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