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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 12622132 B1

PDFFull Text
Date of Patent:
May. 05, 2026

Filed:

Aug. 03, 2023

Light-emitting device, light-emitting apparatus, electronic device, and lighting device

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;

Inventors:

Akira Nagasaka, Atsugi, JP;

Kunihiko Suzuki, Isehara, JP;

Ryo Narukawa, Hadano, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;

Attorneys:

Eric J. Robinson

Robinson Intellectual Property Law Office, P.C.

Primary Examiner:

Anthony Ho

Int. Cl.
CPC ...
H10K 50/16 (2023.01); H10K 50/15 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 59/40 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 50/167 (2023.02); H10K 50/157 (2023.02); H10K 59/131 (2023.02); H10K 59/351 (2023.02); H10K 59/40 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02);
Abstract

The reliability of a light-emitting device is improved. Provided is a light-emitting device including a light-emitting layer between a first electrode and a second electrode. The light-emitting layer contains a light-emitting substance and a first organic compound. A difference between a sum of energy of the first organic compound in a ground state and energy of an oxygen molecule in a ground state and energy of a transition state formed by the first organic compound and the oxygen molecule is greater than or equal to 1.84 eV. A difference between the energy of the transition state formed by the first organic compound and the oxygen molecule and energy of an oxygen adduct of the first organic compound in a ground state is less than or equal to 0.87 eV.

Find Patent Forward Citations

Nagasaka, Akira. (2026). Light-emitting device, light-emitting apparatus, electronic device, and lighting device (U.S. Patent No. 12622132). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12622132

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