US 11,721,244 B2
Cover window and foldable display device including the same
Changwoo Chun, Cheonan-si (KR); Jungmin Lee, Seoul (KR); Sejin Jang, Paju-si (KR); and Youngjoo Park, Busan (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Dec. 22, 2020, as Appl. No. 17/130,630.
Claims priority of application No. 10-2019-0177976 (KR), filed on Dec. 30, 2019.
Prior Publication US 2021/0201712 A1, Jul. 1, 2021
Int. Cl. G09F 9/30 (2006.01); G06F 1/16 (2006.01); B32B 3/30 (2006.01); B32B 7/14 (2006.01); B32B 27/08 (2006.01)
CPC G09F 9/301 (2013.01) [B32B 3/30 (2013.01); B32B 7/14 (2013.01); B32B 27/08 (2013.01); G06F 1/1616 (2013.01); B32B 2255/26 (2013.01); B32B 2457/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A cover window, comprising:
a substrate layer;
a hard-coating layer on the substrate layer;
a protective film disposed on the hard-coating layer and including a base film and a plurality of protrusions protruding from the base film; and
an adhesive layer disposed on surfaces of the plurality of protrusions and bonding the hard-coating layer and the protective film,
wherein the protective film includes a first area and second areas disposed on both sides of the first area,
wherein the plurality of protrusions are disposed in the first area, and
wherein the plurality of protrusions have a shape in which the protrusions disposed on one side and the protrusions disposed on the other side are symmetrical to each other with respect to a central line of the first area.