US 11,940,594 B2
Textured cover assemblies for display applications
Mingxia Gu, Campbell, CA (US); Janos C. Keresztes, Cupertino, CA (US); Jun Qi, San Jose, CA (US); Jungwook Park, Cupertino, CA (US); Victor H. Yin, Cupertino, CA (US); and Yanming Li, Santa Clara, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,970.
Application 17/846,970 is a continuation of application No. 16/425,741, filed on May 29, 2019, granted, now 11,372,137.
Prior Publication US 2022/0326413 A1, Oct. 13, 2022
Int. Cl. G02B 1/11 (2015.01); G02B 5/02 (2006.01); G02B 5/18 (2006.01); H05K 5/00 (2006.01); H05K 5/03 (2006.01)
CPC G02B 1/11 (2013.01) [G02B 5/0215 (2013.01); G02B 5/1814 (2013.01); H05K 5/0017 (2013.01); H05K 5/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a housing;
a cover assembly coupled to the housing, the cover assembly comprising:
a glass cover member defining an exterior surface having a textured region, the textured region comprising a set of surface features having:
a distribution of heights, a magnitude of the heights ranging from greater than zero to less than or equal to 1.5 microns; and
a distribution of spacings between adjacent surface features of the set of surface features, the spacings ranging from 1 micron to 25 microns; and
an anti-reflection coating disposed on the textured region and comprising a plurality of inorganic dielectric layers configured to produce a neutral reflectance over the visible spectrum when disposed on the textured region; and
a display positioned below the cover assembly and configured to display a graphical output that is visible through the set of surface features and the anti-reflection coating.