US 11,812,635 B2
Protection film having base layer over adhesive layer
Young Eun Oh, Hwaseong-si (KR); Jai Ku Shin, Hwaseong-si (KR); Han Sun Ryou, Seoul (KR); So Dam Ahn, Yongin-si (KR); and Jang Doo Lee, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co. Ltd., Yongin-si (KR)
Filed on Jun. 25, 2021, as Appl. No. 17/357,990.
Application 17/357,990 is a continuation of application No. 16/843,458, filed on Apr. 8, 2020.
Application 16/843,458 is a continuation of application No. 16/396,421, filed on Apr. 26, 2019, granted, now 10,665,816, issued on May 26, 2020.
Claims priority of application No. 10-2018-0112073 (KR), filed on Sep. 19, 2018.
Prior Publication US 2021/0320279 A1, Oct. 14, 2021
Int. Cl. H10K 50/844 (2023.01); G06F 1/16 (2006.01); G09F 9/30 (2006.01); H10K 50/842 (2023.01); H10K 77/10 (2023.01)
CPC H10K 50/844 (2023.02) [G06F 1/1652 (2013.01); G09F 9/301 (2013.01); H10K 50/8426 (2023.02); H10K 77/111 (2023.02); B32B 2307/54 (2013.01); B32B 2457/206 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a light emitting layer on the substrate;
an encapsulation layer on the light emitting layer;
a touch sensing layer on the encapsulation layer;
a cover window on the touch sensing layer; and
a protection film on the cover window,
wherein the protection film includes a base layer and an adhesive layer on the base layer,
the adhesive is disposed between the cover window and the base layer,
the base layer has a modulus of about 2 gigapascals to about 9 gigapascals,
the base layer has a thickness of about 25 micrometers to 75 micrometers,
the adhesive layer has a modulus of about 10 megapascals or less at a temperature of −20 degrees Celsius or lower, and
the adhesive layer has a thickness of 100 micrometers or more.