The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2023
Filed:
Mar. 11, 2021
Samsung Display Co., Ltd., Yongin-si, KR;
Changhee Lee, Seoul, KR;
Sehun Kim, Yongin-si, KR;
Hyojin Ko, Seoul, KR;
Dukki Kim, Suwon-si, KR;
Jaehoon Kim, Seoul, KR;
Hyunmi Doh, Seoul, KR;
Yunku Jung, Cheonan-si, KR;
Jaekook Ha, Seoul, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A method for manufacturing a light emitting element includes: forming a first electrode; forming a hole transport region on a first electrode; forming an emission layer on the hole transport region; forming an electron transport region on the emission layer; and forming a second electrode on the electron transport region, wherein the forming of the emission layer includes providing a quantum dot composition containing a quantum dot and a ligand bonded to a surface of the quantum dot, to form a preliminary emission layer; and increasing the layer density of the preliminary emission layer by about 5% or greater, thereby improving a luminous efficiency of the light emitting element.