US 11,860,341 B2
Cover window and display device including the same
Sang Hoon Kim, Hwaseong-si (KR); Seong Jin Hwang, Suwon-si (KR); Min Sang Koo, Seongnam-si (KR); Kyung-Man Kim, Anyang-si (KR); and Min-Hoon Choi, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Dec. 31, 2020, as Appl. No. 17/139,385.
Claims priority of application No. 10-2020-0033962 (KR), filed on Mar. 19, 2020.
Prior Publication US 2021/0293997 A1, Sep. 23, 2021
Int. Cl. B32B 3/10 (2006.01); G02B 1/14 (2015.01); G02B 1/04 (2006.01); G02B 1/00 (2006.01)
CPC G02B 1/14 (2015.01) [G02B 1/002 (2013.01); G02B 1/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cover window comprising:
a glass substrate;
a first coating layer disposed on a first surface of the glass substrate; and
a second coating layer disposed on the first coating layer,
wherein a thickness of the glass substrate is equal to or less than 30 micrometers, and
a thickness of each of the first coating layer and the second coating layer ranges from 50 angstroms to 400 angstroms,
wherein
the first coating layer includes a sodium silicate or an epoxy silane,
and the second coating layer includes a polyimine oligomer having an average molecular weight ranging from 300 grams per mole to 5000 grams per mole or a polyvinyl alcohol.