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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 11258031 B1

PDFFull Text
Date of Patent:
Feb. 22, 2022

Filed:

Dec. 11, 2018

Organic light-emitting device and manufacturing method therefor

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Hwakyung Kim, Daejeon, KR;

Jaechol Lee, Daejeon, KR;

Seokhee Yoon, Daejeon, KR;

Jinseck Kim, Daejeon, KR;

Esder Kang, Daejeon, KR;

Jiyeon Shin, Daejeon, KR;

Keunsoo Lee, Daejeon, KR;

Byungjae Kim, Daejeon, KR;

Assignee:

LG Chem, Ltd.;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5088 (2013.01); H01L 51/0003 (2013.01); H01L 51/006 (2013.01); H01L 51/0052 (2013.01); H01L 51/0061 (2013.01); H01L 51/0072 (2013.01); H01L 2251/552 (2013.01); H01L 2251/558 (2013.01);
Abstract

The present specification relates to an organic light emitting device comprising a first electrode; a second electrode provided opposite to the first electrode; and one or more organic material layers comprising a hole injection layer provided between the first electrode and the second electrode, wherein the hole injection layer comprises a first host, a second host and a dopant, and the first host and the second host have a HOMO energy level value difference of 0.2 eV or greater.

Find Patent Forward Citations

Kim, Hwakyung. (2022). Organic light-emitting device and manufacturing method therefor (U.S. Patent No. 11258031). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11258031

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

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