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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 11437582 B1

PDFFull Text
Date of Patent:
Sep. 06, 2022

Filed:

Jun. 15, 2016

Organic electroluminescent device and manufacturing method thereof

Applicants:

Kunshan Go-visionox Opto-electronics Co., Ltd., Suzhou, CN;

Tsinghua University, Beijing, CN;

Inventors:

Lian Duan, Beijing, CN;

Dongdong Zhang, Beijing, CN;

Song Liu, Beijing, CN;

Jing Xie, Hebei, CN;

Fei Zhao, Beijing, CN;

Assignees:

KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., Kunshan, CN;

TSINGHUA UNIVERSITY, Beijing, CN;

Attorney:

Kilpatrick Townsend & Stockton

Primary Examiner:

Andrew K Bohaty

Int. Cl.
CPC ...
H01L 51/54 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01); C07C 211/61 (2006.01); C07C 255/58 (2006.01); C07C 317/36 (2006.01); C07D 209/80 (2006.01); C07D 209/86 (2006.01); C07D 219/02 (2006.01); C07D 221/20 (2006.01); C07D 241/48 (2006.01); C07D 265/38 (2006.01); C07D 285/14 (2006.01); C07D 403/10 (2006.01); C07D 403/14 (2006.01); C07D 413/10 (2006.01); C07D 413/14 (2006.01); C07D 417/04 (2006.01); C07D 417/10 (2006.01); C07D 417/14 (2006.01); C07D 471/20 (2006.01); C07D 487/14 (2006.01); C07D 487/16 (2006.01); C07F 1/02 (2006.01); C07F 3/02 (2006.01); C07F 3/06 (2006.01);
U.S. Cl.
CPC ...
H01L 51/006 (2013.01); C07C 211/61 (2013.01); C07C 255/58 (2013.01); C07C 317/36 (2013.01); C07D 209/80 (2013.01); C07D 209/86 (2013.01); C07D 219/02 (2013.01); C07D 221/20 (2013.01); C07D 241/48 (2013.01); C07D 265/38 (2013.01); C07D 285/14 (2013.01); C07D 403/10 (2013.01); C07D 403/14 (2013.01); C07D 413/10 (2013.01); C07D 413/14 (2013.01); C07D 417/04 (2013.01); C07D 417/10 (2013.01); C07D 417/14 (2013.01); C07D 471/20 (2013.01); C07D 487/14 (2013.01); C07D 487/16 (2013.01); C07F 1/02 (2013.01); C07F 3/02 (2013.01); C07F 3/06 (2013.01); H01L 51/007 (2013.01); H01L 51/0059 (2013.01); H01L 51/0061 (2013.01); H01L 51/0067 (2013.01); H01L 51/0068 (2013.01); H01L 51/0069 (2013.01); H01L 51/0071 (2013.01); H01L 51/0072 (2013.01); H01L 51/0077 (2013.01); H01L 51/0092 (2013.01); H01L 51/5012 (2013.01); C07C 2603/24 (2017.05); C07C 2603/97 (2017.05); H01L 51/0008 (2013.01); H01L 51/0052 (2013.01); H01L 51/0056 (2013.01); H01L 51/5016 (2013.01); H01L 51/5024 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 2251/5376 (2013.01); H01L 2251/5384 (2013.01); H01L 2251/558 (2013.01);
Abstract

Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (), a light emitting layer () and a second electrode layer (), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level Tgreater than its n-π excited triplet state energy level S, and T-S≤0.3 eV; or, at least one material in the host material has a CT excited triplet state energy level Tgreater than its n-π excited triplet state energy level S, and T-S≥1 eV, with the difference between its n-π excited second triplet state energy level and its CT excited first singlet state energy level being in the range of −0.1 eV to 0.1 eV. The organic electroluminescent device configuration can sufficiently utilize the triplet state energy in the host material and the dye to increase the luminous efficiency and prolong the service life of the device.

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