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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 10236455 B1

PDFFull Text
Date of Patent:
Mar. 19, 2019

Filed:

Jul. 29, 2016

Organic light-emitting device

Applicant:

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

Inventors:

Wonsuk Han, Yongin-si, KR;

Dongchan Kim, Yongin-si, KR;

Wonjong Kim, Yongin-si, KR;

Eungdo Kim, Yongin-si, KR;

Dongkyu Seo, Yongin-si, KR;

Jihye Lee, Yongin-si, KR;

Dahea Im, Yongin-si, KR;

Sanghoon Yim, Yongin-si, KR;

Yoonhyeung Cho, Yongin-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Yongin-si, Gyeonggi-Do, KR;

Attorney:

F. Chau & Associates, LLC

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H05B 33/14 (2006.01); H05B 33/20 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0085 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H01L 51/5004 (2013.01); H01L 51/5096 (2013.01); H05B 33/14 (2013.01); H05B 33/20 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1037 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1092 (2013.01); C09K 2211/185 (2013.01); H01L 51/0052 (2013.01); H01L 51/0054 (2013.01); H01L 51/0067 (2013.01); H01L 51/0071 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0084 (2013.01); H01L 51/0087 (2013.01); H01L 51/0088 (2013.01); H01L 51/0094 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01); H01L 2251/301 (2013.01); H01L 2251/303 (2013.01);
Abstract

An organic light-emitting device is provided to have high efficiency and long lifespan. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode and including a host and a dopant; an electron blocking layer disposed between the first electrode and the emission layer; and an electron transport region disposed between the emission layer and the second electrode, in which the electron blocking layer includes a metal halide, a metal oxide, or a combination thereof, and the actually measured lowest unoccupied molecular orbital (LUMO) value of the electron blocking layer is greater than the actually measured LUMO value of the host in the emission layer.

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