US 12,461,285 B2
Cover window, method of providing cover window, and display device including cover window
Sung Hoon Kim, Asan-si (KR); Young Do Kim, Suwon-si (KR); Yu Ri Kim, Guri-si (KR); and Hyun Seok Oh, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Mar. 18, 2022, as Appl. No. 17/698,227.
Claims priority of application No. 10-2021-0038226 (KR), filed on Mar. 24, 2021.
Prior Publication US 2022/0308266 A1, Sep. 29, 2022
Int. Cl. G06F 1/16 (2006.01); G02B 1/04 (2006.01); G02B 1/14 (2015.01); G02F 1/1333 (2006.01)
CPC G02B 1/14 (2015.01) [G02B 1/04 (2013.01); G02F 1/133305 (2013.01); G02F 1/133331 (2021.01); G06F 1/1652 (2013.01); Y10T 428/24521 (2015.01); Y10T 428/24612 (2015.01)] 15 Claims
OG exemplary drawing
 
1. A cover window comprising:
a glass facing a display panel, the glass including a folding portion and a non-folding portion;
a groove in the folding portion of the glass; and
a multi-layered resin layer which fills the groove, the multi-layered resin layer including a plurality of resin layers each directly contacting the glass within the groove,
wherein the glass which is folded at the folding portion includes:
an inner surface which is compressed,
an outer surface which is stretched, and
among the plurality of resin layers each directly contacting the glass within the groove:
each of the plurality of resin layers has a storage modulus and an elongation,
the storage modulus of a resin layer which is closest to the inner surface is largest,
the storage modulus of the resin layer which is closest to the inner surface is about 0.046 megapascal or less at 20 degrees Celsius, and
the elongation of a resin layer which is closest to the outer surface is largest.