- Patent Title: Anti-glare substrates with low sparkle, DOI and transmission haze
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Application No.: US15506053Application Date: 2015-09-04
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Publication No.: US10656454B2Publication Date: 2020-05-19
- Inventor: Brandon Allen Bazemore , Yuhui Jin , Jun Hou
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- Agent Kevin M. Johnson
- International Application: PCT/US2015/048510 WO 20150904
- International Announcement: WO2016/040151 WO 20160317
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; C03C15/00 ; C03C23/00 ; C03C3/085 ; G02B5/02 ; C03C3/091 ; C03C3/087 ; C03C21/00

Abstract:
Embodiments of anti-glare substrates and articles including the same are disclosed. In one or more embodiments, the anti-glares substrate includes a textured surface with a plurality of features having an average cross-sectional dimension of about 30 micrometers or less. The substrate or article exhibits a transmission haze of 10% or less, a PPDr of about 7% or less or 6% or less, and a DOI of about 80 or less. Method for forming the anti-glare substrates are also disclosed and include etching a surface of a substrate with an etchant having low water solubility to provide an etched surface, and removing a portion of the etched surface. The method includes generating a plurality of insoluble crystals (e.g., any one or more of K2SiF6 and K3AlF6) on the surface while etching the surface. The etchant may include a potassium salt, an organic solvent and a fluoride containing acid.
Public/Granted literature
- US20190107751A1 ANTI-GLARE SUBSTRATES WITH LOW SPARKLE, DOI AND TRANSMISSION HAZE Public/Granted day:2019-04-11
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