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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 11700737 B1

PDFFull Text
Date of Patent:
Jul. 11, 2023

Filed:

Jun. 08, 2020

Light-emitting device and apparatus including the same

Applicant:

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

Inventors:

Dongchan Kim, Yongin-si, KR;

Jiyoung Moon, Yongin-si, KR;

Donghui Lee, Yongin-si, KR;

Jihye Lee, Yongin-si, KR;

Chulsoon Lee, Yongin-si, KR;

Hakchoong Lee, Yongin-si, KR;

Haemyeong Lee, Yongin-si, KR;

Wonsuk Han, Yongin-si, KR;

Jihwan Yoon, Yongin-si, KR;

Yoonhyeung Cho, Yongin-si, KR;

Assignee:

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

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Dzung Tran

Int. Cl.
CPC ...
H01L 51/52 (2006.01); H10K 50/19 (2023.01); H10K 50/13 (2023.01); H10K 59/38 (2023.01); H10K 59/123 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 101/30 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/19 (2023.02); H10K 50/13 (2023.02); H10K 59/123 (2023.02); H10K 59/38 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 71/00 (2023.02); H10K 85/30 (2023.02); H10K 85/322 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 2101/30 (2023.02); H10K 2102/331 (2023.02); H10K 2102/351 (2023.02);
Abstract

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of n between the first electrode and the second electrode; and a charge-generation unit(s) in the number of n−1 between the adjacent light-emitting units. The light-emitting units each include an emission layer, and at least one of the charge-generation unit(s) includes an n-type charge-generation layer, a p-type charge-generation layer, and an interlayer between the n-type charge-generation layer and the p-type charge-generation layer. The p-type charge-generation layer includes a first material and a second material, the first material includes a hole-transporting organic compound, an inorganic insulation compound, or any combination thereof, the second material includes at least one inorganic semiconductor compound, the interlayer comprises a third material, and the third material is selected from an organic compound, an inorganic semiconductor compound, and an inorganic insulation compound.

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