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. 07, 2020
Filed:
Sep. 18, 2018
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Kazuki Nishimura, Sodegaura, JP;
Toshinari Ogiwara, Sodegaura, JP;
Kumiko Hibino, Sodegaura, JP;
Tetsuya Inoue, Sodegaura, JP;
Mitsunori Ito, Sodegaura, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/50 (2006.01); H05B 33/10 (2006.01); C07D 405/14 (2006.01); C07D 403/10 (2006.01); C07D 403/14 (2006.01); C07D 409/14 (2006.01); C07D 401/14 (2006.01); C07D 401/10 (2006.01); C07D 471/04 (2006.01); C07D 487/04 (2006.01); C07D 491/048 (2006.01); C07F 7/08 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5028 (2013.01); C07D 401/10 (2013.01); C07D 401/14 (2013.01); C07D 403/10 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C07D 471/04 (2013.01); C07D 487/04 (2013.01); C07D 491/048 (2013.01); C07F 7/0812 (2013.01); C09K 11/06 (2013.01); H01L 51/0052 (2013.01); H01L 51/0054 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0074 (2013.01); H05B 33/10 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H01L 51/5016 (2013.01); H01L 51/5044 (2013.01); H01L 2251/5384 (2013.01);
Abstract
The organic electroluminescence device includes an anode, a cathode, and at least an emitting layer between the anode and the cathode. The emitting layer includes a first host material, a second host material, and a phosphorescent dopant material. The first host material is a compound represented by a formula (1) below and the second host material is a compound represented by a formula (2) below.