US 12,396,297 B2
Light-emitting element and display device including the same
Hyung Rae Cha, Seoul (KR); Dong Uk Kim, Hwaseong-si (KR); Dong Kyun Seo, Asan-si (KR); and Young Chul Sim, Pyeongtaek-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Feb. 18, 2022, as Appl. No. 17/675,052.
Claims priority of application No. 10-2021-0094040 (KR), filed on Jul. 19, 2021.
Prior Publication US 2023/0018385 A1, Jan. 19, 2023
Int. Cl. H10H 20/825 (2025.01); H10H 20/831 (2025.01)
CPC H10H 20/825 (2025.01) [H10H 20/8312 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A light-emitting element comprising:
a light-emitting element core including:
a first semiconductor layer;
a second semiconductor layer disposed on the first semiconductor layer; and
a light-emitting layer disposed between the first semiconductor layer and the second semiconductor layer;
a nitride insulating film completely surrounding a side face of the light-emitting element core from an end view perspective of the light-emitting element core;
a first element insulating film completely surrounding an outer side face of the nitride insulating film from the end view perspective of the light-emitting element core; and
a second element insulating film completely surrounding an outer side face of the first element insulating film from the end view perspective of the light-emitting element core,
wherein a thickness of the nitride insulating film is smaller than each of a thickness of the first element insulating film and a thickness of the second element insulating film.