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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 11696500 B1

PDFFull Text
Date of Patent:
Jul. 04, 2023

Filed:

Jun. 26, 2017

Organic electroluminescent element, display device, illumination device, and pi-conjugated compound

Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Ryutaro Sugawara, Tokyo, JP;

Takatugu Suzuki, Tokyo, JP;

Assignee:

MERCK PATENT GMBH, Darmstadt, DE;

Attorney:

Lucas & Mercanti, LLP

Primary Examiner:

Dylan C Kershner

Assistant Examiner:

Seokmin Jeon

Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); H10K 85/653 (2023.02); H10K 85/654 (2023.02); H10K 85/656 (2023.02); H10K 85/6574 (2023.02); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/10 (2023.02);
Abstract

The purpose of the present invention is to provide: a π-conjugated compound exhibiting excellent light emission characteristics; an organic electroluminescent element using same; a display device; and an illumination device. Accordingly, this organic electroluminescent element is provided with: a positive electrode; a negative electrode; and at least one organic layer which is sandwiched between the positive electrode and the negative electrode, and which includes a light emission layer. The light emission layer includes a π-conjugated compound having a structure represented by any of general formulae (1)-(3) (in general formulae (1)-(3), at least one among R1-R4, R5-R8, and R9-R16 represents a group represented by general formula (4) (in general formula (4): Ar1 and Ar2 represent substituted or unsubstituted aryl groups; L1 represents a single bond or a substituted or unsubstituted arylene group; and # represents a bond to general formulae (1)-(3))).

Find Patent Forward Citations

Sugawara, Ryutaro. (2023). Organic electroluminescent element, display device, illumination device, and pi-conjugated compound (U.S. Patent No. 11696500). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11696500

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