	US 11,891,329 B2
	Window and method of manufacturing the same
Seung Kim, Seongnam-si (KR); Byunghoon Kang, Hwaseong-si (KR); Seungho Kim, Asan-si (KR); Youngok Park, Hwaseong-si (KR); Sujin Sung, Hwaseong-si (KR); and Gyuin Shim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 29, 2020, as Appl. No. 16/861,791.
Claims priority of application No. 10-2019-0063793 (KR), filed on May 30, 2019.
Prior Publication US 2020/0377408 A1, Dec. 3, 2020
Int. Cl. C22C 21/08 (2006.01); C22F 1/047 (2006.01); C03C 21/00 (2006.01); C03B 18/04 (2006.01); C03B 27/03 (2006.01); G06F 1/16 (2006.01); C03C 3/04 (2006.01); C03C 3/083 (2006.01); G02F 1/1333 (2006.01)

CPC C03C 21/002 (2013.01) [C03B 18/04 (2013.01); C03B 27/03 (2013.01); C03C 3/04 (2013.01); C03C 3/083 (2013.01); G06F 1/1637 (2013.01); C03C 2203/24 (2013.01); G02F 1/133331 (2021.01); G06F 2200/1634 (2013.01); Y10T 428/315 (2015.01)]

14 Claims

1. A window comprising:

a base region; and

a compressive stress region disposed on the base region and including Li⁺, Na⁺, and K⁺ ions,

wherein the compressive stress region comprises:

a first compressive stress portion in which a concentration of the K⁺ ions decreases, a concentration of the Na⁺ ions increases, and a concentration of the Li⁺ ions increases, from a surface of the window toward the base region; and

a second compressive stress portion adjacent the first compressive stress portion, wherein, in the second compressive stress portion, the concentration of the Na⁺ ions decreases and the concentration of the Li⁺ ions increases from the first compressive stress portion toward the base region.