公开(公告)号：US20240351311A1

公开(公告)日：2024-10-24

申请号：US18596022

申请日：2024-03-05

Applicant: Apple Inc.

Inventor： Christopher D Jones ,  Que Anh S Nguyen ,  Matthew S Rogers ,  Christopher C Bartlow

IPC: B32B17/06 ,  B32B3/30 ,  B32B7/027 ,  H05K5/03

CPC classification number: B32B17/06 ,  B32B3/30 ,  B32B7/027 ,  H05K5/03 ,  B32B2250/03 ,  B32B2307/30 ,  B32B2307/7376 ,  B32B2457/20

Abstract: An electronic device may have a display and may be configured to fold about a bend axis that overlaps the display. The display may have a display cover layer formed from three layers of glass fused together. The display cover layer may have outer glass layers that have lower coefficients of thermal expansion than a core inner layer that is formed between the outer glass layers. This places the outer glass layers into deep compressive stress relative to the inner layer, which is under tensile stress. A notch may be formed in one of the outer glass layers to enhance flexibility of the display cover layer in a strip-shaped notch region that extends along the bend axis. An exposed portion of the inner glass layer in the notch may be chemically strengthened.