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:
May. 04, 2021
Filed:
May. 30, 2018
Applicants:
Rohm Co., Ltd., Kyoto, JP;
Junji Kido, Yonezawa, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Junji Kido, Yamagata-ken, JP;
Toshio Matsumoto, Kanagawa-ken, JP;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/52 (2006.01); C07C 211/58 (2006.01); C07C 211/61 (2006.01); C09K 11/06 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5278 (2013.01); C07C 211/58 (2013.01); C07C 211/61 (2013.01); C09K 11/06 (2013.01); H01L 51/5036 (2013.01); H01L 51/5044 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01); H01L 51/5092 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01); H01L 51/5284 (2013.01); C07C 2603/18 (2017.05); C09K 2211/1003 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); H01L 51/005 (2013.01); H01L 51/006 (2013.01); H01L 51/0056 (2013.01); H01L 51/0058 (2013.01); H01L 51/5262 (2013.01); H01L 51/56 (2013.01); Y10T 428/24942 (2015.01);
Abstract
An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0×10Ωcm.