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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 12486421 B1

PDFFull Text
Date of Patent:
Dec. 02, 2025

Filed:

Jan. 06, 2022

Ink composition for light-emitting device and light emitting device manufactured using same

Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Heunggyu Kim, Yongin-si, KR;

Taeheon Kang, Yongin-si, KR;

Sehun Kim, Yongin-si, KR;

Hyeran Mun, Yongin-si, KR;

Jaekook Ha, Yongin-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:

Lerner David LLP

Primary Examiner:

James E Mcdonough

Int. Cl.
CPC ...
C09D 11/00 (2014.01); C09D 11/033 (2014.01); C09D 11/52 (2014.01); H10K 85/60 (2023.01); H10K 50/16 (2023.01); H10K 71/13 (2023.01);
U.S. Cl.
CPC ...
C09D 11/52 (2013.01); C09D 11/033 (2013.01); H10K 85/624 (2023.02); H10K 50/16 (2023.02); H10K 71/13 (2023.02);
Abstract

An ink composition for a light-emitting device includes a phosphine oxide-based charge transporting organic material, a first solvent represented by Formula 1, a second solvent represented by Formula 2, and a third solvent that is polar aprotic. A light-emitting device includes a layer prepared with the in composition. An electronic apparatus includes the light-emitting device:HOR(O)ROH  [Formula 1]ROR.  [Formula 2]

Find Patent Forward Citations

Kim, Heunggyu. (2025). Ink composition for light-emitting device and light emitting device manufactured using same (U.S. Patent No. 12486421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12486421

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