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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 11895915 B1

PDFFull Text
Date of Patent:
Feb. 06, 2024

Filed:

Jul. 24, 2019

Organic light emitting diode and organic light emitting device having the same

Applicants:

Lg Display Co., Ltd., Seoul, KR;

Lg Chem, Ltd., Seoul, KR;

Inventors:

Hyong-Jong Choi, Paju-si, KR;

Tae-Ryang Hong, Paju-si, KR;

Joong-Hwan Yang, Paju-si, KR;

Jun-Yun Kim, Paju-si, KR;

Wan-Pyo Hong, Daejeon, KR;

Jin-Joo Kim, Daejeon, KR;

Hong-Sik Yoon, Seoul, KR;

Assignees:

LG DISPLAY CO., LTD, Seoul, KR;

LG CHEM, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Jenna N Chandhok

Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 405/14 (2006.01); C09K 11/06 (2006.01); C07D 409/04 (2006.01); C07D 491/048 (2006.01); C07D 487/04 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01); C07D 409/14 (2006.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C07D 487/04 (2013.01); C07D 491/048 (2013.01); C09K 11/06 (2013.01); H10K 85/615 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02);
Abstract

Disclosed is an organic light emitting diode (OLED) comprising at least one emitting unit that includes a first compound, which may have a bipolar property, a second compound, which may have a delayed fluorescent property, and a third compound, which may have narrow FWHM (full width at half maximum) and a fluorescent property, and an organic light emitting device including the OLED. Further the compounds have defined relative LUMO and HOMO energies. The OLED and the organic light emitting device has enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage.

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