US 12,193,250 B2
Light emitting element and display device including an electron transport layer containing at least one of RH and IR
Yoshihiro Ueta, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/612,435
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed May 31, 2019, PCT No. PCT/JP2019/021677
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2020/240807, PCT Pub. Date Dec. 3, 2020.
Prior Publication US 2022/0223809 A1, Jul. 14, 2022
Int. Cl. H10K 50/16 (2023.01); H10K 50/115 (2023.01)
CPC H10K 50/115 (2023.02) [H10K 50/16 (2023.02)] 1 Claim
OG exemplary drawing
 
1. A light-emitting element comprising:
a positive electrode;
a negative electrode;
a quantum dot layer provided between the positive electrode and the negative electrode and including quantum dots; and
a first electron transport layer provided to be in contact with the quantum dot layer and between the quantum dot layer and the negative electrode and containing a compound formed of Zn, O, and constituent elements M, the constituent elements M including two or more elements of Co, Rh, and Ir.