US 12,355,021 B2
Display device
Yasuhiro Kanaya, Tokyo (JP); and Masanobu Ikeda, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Feb. 21, 2024, as Appl. No. 18/583,038.
Application 18/583,038 is a continuation of application No. 17/104,850, filed on Nov. 25, 2020, granted, now 11,916,051.
Application 17/104,850 is a continuation of application No. PCT/JP2019/017102, filed on Apr. 22, 2019.
Claims priority of application No. 2018-105503 (JP), filed on May 31, 2018.
Prior Publication US 2024/0194659 A1, Jun. 13, 2024
Int. Cl. H01L 27/14 (2006.01); H01L 25/16 (2023.01); H01L 29/04 (2006.01); H01L 29/15 (2006.01); H01L 31/036 (2006.01); H10H 20/857 (2025.01); G09G 3/32 (2016.01)
CPC H01L 25/167 (2013.01) [H10H 20/857 (2025.01); G09G 3/32 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a first flattening film on the substrate;
an anode electrode on the first flattening film;
an inorganic light-emitting element including an anode and a cathode;
a cathode wiring between the substrate and the first flattening film;
a second flattening film that surrounds a side surface of the light emitting element, on the first flattening film;
a cathode electrode on the second flattening film; and
an inorganic film on the cathode electrode,
wherein
the anode of the inorganic light-emitting element is disposed on the anode electrode,
the cathode electrode is provided between the second flattening film and the inorganic film,
the cathode of the inorganic light-emitting element is connected to the cathode electrode,
the cathode electrode is connected to the cathode wiring via a contact hole formed in the first flattening film and the second flattening film, and
the inorganic film that has a constant thickness in a first direction perpendicular to the substrate is in contact with the cathode electrode in the contact hole.