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.:

US 11192881 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 07, 2021

Filed:

Aug. 27, 2019
Applicants:

Feng-wen Yen, Taipei, TW;

Wen-feng Hsiao, Hsinchu, TW;

Inventors:

Feng-Wen Yen, Taipei, TW;

Wen-Feng Hsiao, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 403/04 (2006.01); H01L 51/52 (2006.01); C07D 409/14 (2006.01); C07D 413/04 (2006.01); C07D 417/14 (2006.01); C07D 401/04 (2006.01); C07F 7/08 (2006.01); H01L 51/00 (2006.01); C07D 401/14 (2006.01);
U.S. Cl.
CPC ...
C07D 403/04 (2013.01); C07D 401/04 (2013.01); C07D 401/14 (2013.01); C07D 409/14 (2013.01); C07D 413/04 (2013.01); C07D 417/14 (2013.01); C07F 7/0816 (2013.01); H01L 51/0054 (2013.01); H01L 51/0055 (2013.01); H01L 51/0056 (2013.01); H01L 51/0067 (2013.01); H01L 51/0069 (2013.01); H01L 51/0072 (2013.01); H01L 51/0094 (2013.01); H01L 51/5024 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5096 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01);
Abstract

An organic compound is described. An organic electroluminescence device comprises the organic compound as a host or a hole blocking layer. The organic compound of the following formula may lower a driving voltage or increases a current efficiency or a half-life of the organic electroluminescence device. The same definition as described in the present invention.


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