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:
Mar. 26, 2024

Filed:

Aug. 27, 2020
Applicant:

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

Inventors:

Namsu Kang, Yongin-si, KR;

Jin Kim, Yongin-si, KR;

Dongkyu Lee, Yongin-si, KR;

Hyunshik Lee, Yongin-si, KR;

Jungho Choi, Yongin-si, KR;

Jaehoon Hwang, Yongin-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/00 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/19 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/631 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/19 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02);
Abstract

The present application relates to an organic light-emitting device and a flat display apparatus including the same. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of m between the first electrode and the second electrode; and charge generation layers in the number of m−1 respectively between each pair of adjacent light-emitting units among the light-emitting units in the number of m, each charge generation layer including an n-type charge generation layer and a p-type charge generation layer, wherein m is an integer of 3 or more, the light-emitting units in the number of m each include a hole transport region, an emission layer, and an electron transport region, which are sequentially stacked, electron transport regions in the number of m included in the light-emitting units in the number of m each include an electron transport material, and an electron transport material included in at least one electron transport region among the electron transport regions in the number of m is different from an electron transport material included in at least one electron transport region among the other electron transport regions.


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