公开(公告)号：EP4317092A1

公开(公告)日：2024-02-07

申请号：EP22775092.4

申请日：2022-03-08

申请人： Nippon Electric Glass Co., Ltd.

发明人： ITO, Shigeyoshi ,  KOSUGI, Masashi

IPC分类号： C03B17/06 ,  C03C3/083 ,  C03C3/091 ,  C03C21/00

摘要： In a glass sheet 12 for chemical strengthening having a thickness of 0.1 mm or less, the glass sheet 12 has a warped shape as a whole or includes a warped part in a portion thereof. When the glass sheet 12 is placed on a horizontal surface with one main surface 12a facing upward, a first peak position D1 is present in a part inside a peripheral edge portion 12e of the glass sheet 12, where the first peak position D1 is a position having the highest height from the horizontal surface in the glass sheet 12, and the peripheral edge portion 12e is a part having a width of 10 mm along a peripheral edge of the glass sheet 12.