Invention Grant
- Patent Title: Window and method of manufacturing the same
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Application No.: US16861791Application Date: 2020-04-29
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Publication No.: US11891329B2Publication Date: 2024-02-06
- Inventor: Seung Kim , Byunghoon Kang , Seungho Kim , Youngok Park , Sujin Sung , Gyuin Shim
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin-si
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Yongin-si
- Agency: F. CHAU & ASSOCIATES, LLC
- Priority: KR 20190063793 2019.05.30
- Main IPC: C22C21/08
- IPC: C22C21/08 ; C22F1/047 ; C03C21/00 ; C03B18/04 ; C03B27/03 ; G06F1/16 ; C03C3/04 ; C03C3/083 ; G02F1/1333

Abstract:
A window includes a base region and a compressive stress region disposed on the base region. The compressive stress region includes Li+, Na+, and K+ ions. The compressive stress region includes a first compressive stress portion in which a concentration of the K+ ions decreases, a concentration of Na+ ions increases, and a concentration of the Li+ ions increases, from a surface of the window toward the base region. A second compressive stress portion is adjacent to the first compressive stress portion. In the second compressive stress portion, the concentration of the Na+ ion decreases and the concentration of the Li+ ion increases, from the first compressive stress portion toward the base region. The window thereby has a high surface compressive stress value and impact resistance.
Public/Granted literature
- US20200377408A1 WINDOW AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2020-12-03
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