公开(公告)号：US10688756B2

公开(公告)日：2020-06-23

申请号：US16069959

申请日：2017-01-13

Applicant: CORNING INCORPORATED

Inventor： Polly Wanda Chu ,  Michael Patrick Donovan ,  Timothy Michael Gross ,  Louis Mattos, Jr. ,  Prakash Chandra Panda ,  Robert Lee Smith, III

IPC: B32B17/06 ,  B32B7/12 ,  H01L51/00 ,  B32B17/10 ,  G06F1/16 ,  G09F9/30 ,  B32B3/16 ,  G02F1/1333

Abstract: A cover element for a foldable electronic device that includes a foldable glass element, first and second primary surfaces, and a compressive stress region extending from the first primary surface to a first depth that is defined by a stress σI of at least about 100 MPa in compression at the first primary surface. The device also includes a polymeric layer disposed over the first primary surface. The glass element has a stress profile such that when the glass element is bent to a target bend radius of from 1 mm to 20 mm, to induce a bending stress σB at the first primary surface in tension, σI+σB

公开(公告)号：US20190072469A1

公开(公告)日：2019-03-07

申请号：US16122214

申请日：2018-09-05

Applicant: Corning Incorporated

Inventor： Kameron Isaiah Chambliss ,  Benedict Osobmen Egboiyi ,  Lisa Marie Noni ,  Prakash Chandra Panda ,  Kevin Barry Reiman

IPC: G01N3/30

Abstract: Test apparatus and methods for impact testing specimens, including edge impact testing are disclosed. The apparatus and methods disclosed include a pendulum and a bob which are used to impact test specimens against an impacting object.