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. 24, 2020
Filed:
Apr. 24, 2018
Applicants:
Feng-wen Yen, Taipei, TW;
Li-chieh Chuang, Nantou, TW;
Inventors:
Feng-Wen Yen, Taipei, TW;
Li-Chieh Chuang, Nantou, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/10 (2006.01); C07D 413/10 (2006.01); C07D 417/10 (2006.01); C07D 403/10 (2006.01); C07D 421/10 (2006.01); C07D 221/18 (2006.01); C07D 517/04 (2006.01); C07D 513/04 (2006.01); C07D 495/04 (2006.01); C07D 491/04 (2006.01); C07D 471/04 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C07D 401/10 (2013.01); C07D 221/18 (2013.01); C07D 403/10 (2013.01); C07D 413/10 (2013.01); C07D 417/10 (2013.01); C07D 421/10 (2013.01); C07D 471/04 (2013.01); C07D 491/04 (2013.01); C07D 495/04 (2013.01); C07D 513/04 (2013.01); C07D 517/04 (2013.01); C09K 11/06 (2013.01); H01L 51/0072 (2013.01); H01L 51/5012 (2013.01); C09K 2211/104 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/1037 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1096 (2013.01);
Abstract
A heteroaromatic compound which can be used as the fluorescent guest material in the light emitting layer of the organic electroluminescence device is disclosed. The organic electroluminescence device employing the heteroaromatic compound of the present invention can operate under reduced driving voltage, increase current efficiency, and prolong half-life time.