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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 11903288 B1

PDFFull Text
Date of Patent:
Feb. 13, 2024

Filed:

Jan. 13, 2023

Organic light-emitting device

Applicant:

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

Inventors:

Hajin Song, Yongin-si, KR;

Jihwan Yoon, Yongin-si, KR;

Sangwoo Lee, Yongin-si, KR;

Sangwoo Pyo, Yongin-si, KR;

Assignee:

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

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Thanh Y Tran

Int. Cl.
CPC ...
H10K 59/35 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/11 (2023.01); H10K 50/125 (2023.01); H10K 59/131 (2023.01); H10K 71/00 (2023.01); H10K 50/852 (2023.01); H10K 59/12 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 101/40 (2023.01); H10K 101/00 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 59/35 (2023.02); H10K 50/11 (2023.02); H10K 50/125 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 59/131 (2023.02); H10K 71/00 (2023.02); H10K 50/852 (2023.02); H10K 59/1201 (2023.02); H10K 85/655 (2023.02); H10K 85/6572 (2023.02); H10K 2101/10 (2023.02); H10K 2101/27 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2101/90 (2023.02);
Abstract

An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.

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