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.

Date of Patent:
Jun. 02, 2026

Filed:

Jun. 16, 2022
Applicant:

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

Inventors:

Hideko Yoshizumi, Atsugi, JP;

Ryo Narukawa, Hadano, JP;

Satoko Numata, Atsugi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 85/60 (2023.01); H10K 59/80 (2023.01); H10K 101/00 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/156 (2023.02); H10K 50/166 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 59/871 (2023.02); H10K 59/876 (2023.02); H10K 2101/00 (2023.02); H10K 2102/351 (2023.02);
Abstract

A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a first electrode, a second electrode, and a first unit. The first unit is located between the first electrode and the second electrode, and the first unit has a function of emitting light. The first unit contains a light-emitting organic compound and an organic compound HRM. The organic compound HRM has four or more rotatable bonds and a principal moment of inertia. The principal moment of inertia includes a first normalized principal moment of inertia NPR1 and a second normalized principal moment of inertia NPR2 in a predetermined region.


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