US 12,268,081 B2
Display device and method of manufacturing the same
Jeong In Lee, Hwaseong-si (KR); and Ho Yun Byun, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on May 27, 2021, as Appl. No. 17/333,006.
Claims priority of application No. 10-2020-0101577 (KR), filed on Aug. 13, 2020.
Prior Publication US 2022/0052282 A1, Feb. 17, 2022
Int. Cl. H01L 51/00 (2006.01); B32B 3/02 (2006.01); B32B 27/06 (2006.01); B32B 38/00 (2006.01); H10K 50/84 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 77/111 (2023.02) [B32B 3/02 (2013.01); B32B 27/06 (2013.01); B32B 38/0008 (2013.01); H10K 50/841 (2023.02); H10K 71/00 (2023.02); B32B 2307/72 (2013.01); B32B 2310/0843 (2013.01); B32B 2457/20 (2013.01); H10K 2102/311 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display device including a folding area, the display device comprising:
a display panel;
a cover window disposed above the display panel;
a bonding member disposed between the display panel and the cover window; and
a protective film disposed on the cover window, wherein the cover window is disposed between the protective film and the bonding member, and a portion of the protective film corresponding to the folding area includes a first region and a second region including a same polymer material as each other and having different moduli from each other,
wherein a modulus of the second region of the protective film is less than a modulus of the first region,
the modulus of the first region is an average elastic modulus of the first region, and the modulus of the second region is an average elastic modulus of the second region,
the second region is disposed in the folding area, and
an atomic or molecular arrangement structure of the same polymer material in the second region is different from the atomic or molecular arrangement structure of the polymer same material in the first region.