公开(公告)号：US20190223309A1

公开(公告)日：2019-07-18

申请号：US16363208

申请日：2019-03-25

Applicant: CORNING INCORPORATED

Inventor： Jaymin Amin ,  Joshua Michael Jocobs ,  Jonathan David Pesansky ,  Kevin Barry Reiman ,  Ananthanarayanan Subramanian

IPC: H05K5/03 ,  B32B17/10 ,  C03C23/00 ,  B32B7/12 ,  H05K5/00 ,  C03C3/093 ,  C03C21/00 ,  B32B17/06

CPC classification number: H05K5/03 ,  B32B7/12 ,  B32B17/06 ,  B32B17/10036 ,  B32B17/10091 ,  B32B17/10119 ,  B32B17/10137 ,  B32B17/10743 ,  B32B17/10761 ,  B32B17/1077 ,  B32B17/10788 ,  B32B17/10798 ,  B32B2307/584 ,  B32B2457/20 ,  C03C3/093 ,  C03C21/002 ,  C03C21/005 ,  C03C23/007 ,  H05K5/0017

Abstract: Disclosed are device display screen protectors comprising a first strengthened substrate sized to cover a display screen of an electronic device, the first strengthened substrate having a central tension value in the range greater than 0 MPa and less than 20 MPa, a surface having a Knoop lateral cracking scratch threshold of at least 3 N.