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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 12652952 B1

PDFFull Text
Date of Patent:
Jun. 09, 2026

Filed:

Aug. 26, 2021

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

Applicant:

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

Inventors:

Nobuharu Ohsawa, Zama, JP;

Satoshi Seo, Sagamihara, JP;

Takeyoshi Watabe, Atsugi, JP;

Airi Ueda, Sagamihara, JP;

Tomohiro Kubota, Atsugi, JP;

Takashi Hirahara, Atsugi, JP;

Assignee:

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

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Jay Yang

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07C 211/61 (2006.01); H10K 85/60 (2023.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 59/12 (2023.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
H10K 85/633 (2023.02); C07C 211/61 (2013.01); C07C 2601/14 (2017.05); C07C 2603/18 (2017.05); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 59/12 (2023.02); H10K 59/874 (2023.02); H10K 59/876 (2023.02); H10K 85/615 (2023.02);
Abstract

A light-emitting device with high emission efficiency and low driving voltage is provided. A light-emitting apparatus, an electronic device, and a lighting device with low power consumption are provided. The following organic compound is provided: the organic compound has an arylamine structure; and when the organic compound is deposited to be a film, the ordinary refractive index of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 1.50 and less than or equal to 1.75, the birefringence Δn of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 0 and less than or equal to 0.008, or the alignment order parameter of the deposited film with respect to light with a wavelength corresponding to the longest wavelength where an absorption peak appears in the absorption spectrum is greater than or equal to −0.07 and less than or equal to 0.00.

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