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:
Mar. 16, 2021
Filed:
Sep. 15, 2016
Applicant:
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
HODOGAYA CHEMICAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/50 (2006.01); C07C 211/54 (2006.01); C07C 211/61 (2006.01); C07D 401/10 (2006.01); C09K 11/06 (2006.01); H01L 51/56 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0059 (2013.01); C07C 211/54 (2013.01); C07C 211/61 (2013.01); C07D 401/10 (2013.01); C09K 11/06 (2013.01); H01L 51/006 (2013.01); H01L 51/0052 (2013.01); H01L 51/0067 (2013.01); H01L 51/50 (2013.01); H01L 51/5064 (2013.01); C07C 2603/18 (2017.05); C07C 2603/42 (2017.05); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1018 (2013.01); H01L 51/001 (2013.01); H01L 51/0054 (2013.01); H01L 51/0058 (2013.01); H01L 51/5012 (2013.01); H01L 51/5072 (2013.01); H01L 51/56 (2013.01); H01L 2251/558 (2013.01);
Abstract
The present invention provides an organic EL device having at least an anode, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, wherein the second hole transport layer contains an arylamine compound represented by the following general formula (1), and the electron transport layer contains a pyrimidine derivative represented by the following general formula (2). The organic EL device of the present invention has a high efficiency, and is driven at a low driving voltage. Further, it has a particularly long lifetime.