US 12,352,924 B2
Display articles with diffractive, antiglare surfaces and methods of making the same
Jiangwei Feng, Newtown, PA (US); Shandon Dee Hart, Elmira, NY (US); Karl William Koch, III, Elmira, NY (US); Cameron Robert Nelson, Elmira, NY (US); Wageesha Senaratne, Horseheads, NY (US); and William Allen Wood, Painted Post, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by CORNING INCORPORATED, Corning, NY (US)
Filed on Feb. 22, 2024, as Appl. No. 18/584,019.
Application 18/584,019 is a continuation of application No. 17/370,328, filed on Jul. 8, 2021, granted, now 11,940,593.
Claims priority of provisional application 63/049,843, filed on Jul. 9, 2020.
Prior Publication US 2024/0192407 A1, Jun. 13, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 1/11 (2015.01); C03C 15/00 (2006.01); C23C 14/02 (2006.01); C23C 14/04 (2006.01); C23C 16/02 (2006.01); C23C 16/04 (2006.01); G02B 1/118 (2015.01); G02B 1/14 (2015.01); G02B 5/02 (2006.01); G02B 27/42 (2006.01)
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)] 24 Claims
OG exemplary drawing
 
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 plurality of structural features further comprises a first portion of structural features having a first average height and a second portion of structural features having a second average height,
wherein the first average height and the second average height have a difference of from 50 nm to 300 nm,
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 3%, as measured by pixel power deviation (PPD140) at an incident angle of 0° from normal, and a coupled distinctness of image (DOI) of less than 90% at an incident angle of 20° from normal.