US 11,751,427 B2
Electronic device
Yusuke Sasaki, Minato-ku (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Sep. 14, 2021, as Appl. No. 17/474,624.
Application 17/474,624 is a continuation of application No. 16/407,660, filed on May 9, 2019, granted, now 11,152,596.
Claims priority of application No. 2018-092864 (JP), filed on May 14, 2018.
Prior Publication US 2021/0408484 A1, Dec. 30, 2021
Int. Cl. H10K 50/844 (2023.01); H10K 50/11 (2023.01); H10K 50/842 (2023.01); H10K 59/122 (2023.01)
CPC H10K 50/8445 (2023.02) [H10K 50/11 (2023.02); H10K 50/8426 (2023.02); H10K 59/122 (2023.02)] 9 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a substrate including a first area and a second area surrounding the first area;
a hole transport layer, an electron transport layer, and a first organic layer between the hole transport layer and the electron transport layer disposed in the first area; and
a sealing layer,
wherein
the sealing layer includes a first inorganic film, a second inorganic film, an organic film disposed between the first inorganic film and the second inorganic film, and a third inorganic film,
the first inorganic film, the second inorganic film, and the organic film are disposed in the first area and the second area,
the third inorganic film has barrier properties, is formed from SiN or SiON, and is disposed in the second area without overlapping with the first area,
the first inorganic film, the second inorganic film, and the organic film are disposed between the third inorganic film and the substrate in the second area, and
the first inorganic film and the second inorganic film include contacting portions that are in contact with each other in the second area, and a lateral extent in a direction parallel with a top surface of the substrate of an end portion of the third inorganic film is on the contacting portions,
wherein the third inorganic film does not extend beyond the contacting portions in a direction parallel with the top surface of the substrate toward the second area.