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:
Dec. 01, 2020
Filed:
Aug. 18, 2017
Applicant:
Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, CN;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/56 (2006.01); H01L 51/50 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0052 (2013.01); H01L 51/0071 (2013.01); H01L 51/5012 (2013.01); H01L 51/5024 (2013.01); H01L 51/56 (2013.01); H01L 51/5004 (2013.01);
Abstract
The present disclosure provides a blue organic electroluminescent device comprising: a substrate; an anode layer disposed on the substrate; a light emitting layer disposed on the anode layer, the light emitting layer being formed from a blue organic fluorescent material and a hole-type organic host material, wherein the blue organic fluorescent material is 8.0% to 25.0% by mass of the hole-type organic host material; and a cathode layer disposed on the light emitting layer.