公开(公告)号：US20220089477A1

公开(公告)日：2022-03-24

申请号：US17223960

申请日：2021-04-06

Applicant: Samsung Display Co., Ltd.

Inventor： Dongsung LEE ,  Jihyun KO ,  Seungho KIM ,  Hyunseung SEO ,  Hyunkyung YUN

IPC: C03C17/30 ,  H01L51/52 ,  C03B23/03

Abstract: Methods of manufacturing a curved cover window of the disclosure prevent or reduce damage to a window substrate of the curved cover window. Methods include manufacturing methods in which a hard coating layer is formed on a window substrate, and optionally molding the window substrate on which the coating layer is formed in a manner as to minimize or reduce breaking or damage to the window substrate. By using a hard coating layer which is harder than the window substrate and which may include a first polycarbonate layer, a second polymethyl methacrylate layer, and polysilsesquioxane; and thermally molding the window substrate and hard coating layer at a temperature of about 120° C. to about 130° C. and for about three minutes to about five minutes; rupture of the window substrate during the molding process can be reduced.