US 12,356,526 B2
Light-emitting element, display device, and electronic equipment
Naoya Kasahara, Kanagawa (JP); and Akira Watanabe, Kanagawa (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/286,692
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Nov. 14, 2019, PCT No. PCT/JP2019/044749
§ 371(c)(1), (2) Date Apr. 19, 2021,
PCT Pub. No. WO2020/105544, PCT Pub. Date May 28, 2020.
Claims priority of application No. 2018-216899 (JP), filed on Nov. 19, 2018.
Prior Publication US 2021/0351266 A1, Nov. 11, 2021
Int. Cl. H10K 59/17 (2023.01); H05B 45/60 (2022.01); H10K 50/813 (2023.01); H10K 50/818 (2023.01); H10K 59/122 (2023.01); H10K 59/173 (2023.01); H10K 59/80 (2023.01); H10K 77/10 (2023.01); H10K 50/828 (2023.01); H10K 102/00 (2023.01)
CPC H05B 45/60 (2020.01) [H10K 50/813 (2023.02); H10K 59/122 (2023.02); H10K 59/173 (2023.02); H10K 59/80515 (2023.02); H10K 77/10 (2023.02); H10K 50/818 (2023.02); H10K 50/828 (2023.02); H10K 59/80518 (2023.02); H10K 59/80524 (2023.02); H10K 59/876 (2023.02); H10K 2102/3026 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A light-emitting element comprising:
a first insulating film layer extending contiguously along a first direction between a first peripheral edge and a second peripheral edge of an organic EL pixel, the first insulating film layer including a projecting portion located at the first peripheral edge of the organic EL pixel and extending upwards along a second direction perpendicular to the first direction;
an anode electrode portion configured to cover the first insulating film layer and including a projecting-shaped side wall portion formed along the projecting portion;
a second insulating film layer configured to cover an outer edge portion of the anode electrode portion so as to cover the projecting-shaped side wall portion of the anode electrode portion;
an organic EL layer that is layered so as to cover an upper surface of the second insulating film layer and an upper surface of the anode electrode portion; and
a cathode electrode portion layered over an upper surface of the organic EL layer.