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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 11805663 B1

PDFFull Text
Date of Patent:
Oct. 31, 2023

Filed:

Mar. 27, 2018

Light emitting device and display device

Applicant:

Sharp Kabushiki Kaisha, Sakai, JP;

Inventors:

Tokiyoshi Umeda, Sakai, JP;

Yuto Tsukamoto, Sakai, JP;

Bai Zhang, Sakai, JP;

Shinichi Kawato, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Brook Kebede

Int. Cl.
CPC ...
H10K 50/125 (2023.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/125 (2023.02); H10K 50/11 (2023.02); H10K 85/322 (2023.02); H10K 85/342 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 2101/10 (2023.02); H10K 2101/27 (2023.02);
Abstract

A light-emitting device or the like with high color reproducibility and high luminous efficiency is achieved. The light-emitting device includes a blue pixel, a green pixel, and a red pixel, and the green pixel includes, in a green-light-emitting layer that emits light, a host material that transports carriers, a fluorescence dopant, which serves as a light emission dopant that contribute to light emission, and a thermally activated assist dopant which is composed of a thermally activated delayed fluorescent material.

Find Patent Forward Citations

Umeda, Tokiyoshi. (2023). Light emitting device and display device (U.S. Patent No. 11805663). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11805663

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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