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:
Jul. 05, 2022
Filed:
Jun. 19, 2020
Samsung Display Co., Ltd., Yongin-si, KR;
Hyunshik Lee, Incheon, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light emitting diode includes: a first electrode layer; a second electrode layer on the first electrode layer and facing the first electrode layer; a first light emitting layer between the first electrode layer and the second electrode layer and comprising a phosphorescent material; a first hole control layer between the first electrode layer and the first light emitting layer; a second light emitting layer between the first light emitting layer and the second electrode layer and comprising a fluorescent material; and a charge generating layer between the first light emitting layer and the second light emitting layer, the first hole control layer having a thickness equal to or greater than 100 angstroms and equal to or smaller than 900 angstroms.