US 12,134,254 B2
Protective film and display device including the same
Hongju Kim, Hwaseong-si (KR); Euiyoung Kim, Yongin-si (KR); and Youngdae Song, Busan (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jul. 13, 2021, as Appl. No. 17/373,959.
Claims priority of application No. 10-2020-0135343 (KR), filed on Oct. 19, 2020.
Prior Publication US 2022/0123257 A1, Apr. 21, 2022
Int. Cl. B32B 3/26 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); H10K 59/80 (2023.01)
CPC B32B 3/266 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 2457/20 (2013.01); H10K 59/87 (2023.02)] 10 Claims
OG exemplary drawing
 
1. A protective film comprising:
a first film layer;
a second film layer disposed on a first surface of the first film layer; wherein an elongation rate of the first film layer is greater than an elongation rate of the second film layer; and
an adhesive layer disposed on a second surface of the first film layer, which is opposite to the first surface,
wherein a through hole is defined through the second film layer to expose the first surface of the first film layer, where no hole is defined through the first film layer; and
the first film layer entirely covers the adhesive layer below the through hole.