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:
Nov. 21, 2017
Filed:
Aug. 06, 2012
Applicants:
Saki Takada, Kanagawa, JP;
Koji Takaku, Kanagawa, JP;
Tetsu Kitamura, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
Wataru Sotoyama, Kanagawa, JP;
Inventors:
Saki Takada, Kanagawa, JP;
Koji Takaku, Kanagawa, JP;
Tetsu Kitamura, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
Wataru Sotoyama, Kanagawa, JP;
Assignee:
UDC Ireland Limited, Dublin, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); C07D 307/93 (2006.01); C07D 221/18 (2006.01); C07D 471/16 (2006.01); C07D 491/06 (2006.01); C07D 209/80 (2006.01); C07D 235/18 (2006.01); C07D 519/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0071 (2013.01); C07D 209/80 (2013.01); C07D 221/18 (2013.01); C07D 235/18 (2013.01); C07D 307/93 (2013.01); C07D 471/16 (2013.01); C07D 491/06 (2013.01); C07D 519/00 (2013.01); C09K 11/06 (2013.01); H01L 51/006 (2013.01); H01L 51/0051 (2013.01); H01L 51/0054 (2013.01); H01L 51/0061 (2013.01); H01L 51/0067 (2013.01); H01L 51/0068 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0094 (2013.01); C09K 2211/104 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/1037 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1048 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1096 (2013.01); H01L 51/5012 (2013.01);
Abstract
An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has small changes in the chromaticity and in the driving voltage even after driving for a long period of time: wherein Rto R; Qand Q; X, X, Xand Xare as defined herein.