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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 10256427 B1

PDFFull Text
Date of Patent:
Apr. 09, 2019

Filed:

Apr. 15, 2014

Efficient organic electroluminescent devices

Applicant:

Universal Display Corporation, Ewing, NJ (US);

Inventors:

Vadim Adamovich, Yardley, PA (US);

James Esler, Yardley, PA (US);

Jason Brooks, Philadelphia, PA (US);

Michael S. Weaver, Princeton, NJ (US);

Julia J. Brown, Yardley, PA (US);

Assignee:

UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);

Attorney:

Duane Morris LLP

Primary Examiner:

Venkataraman Balasubramanian

Int. Cl.
CPC ...
C09K 11/06 (2006.01); H05B 33/14 (2006.01); H01L 51/50 (2006.01); C07D 213/02 (2006.01); C07D 401/04 (2006.01); C07D 233/54 (2006.01); C07D 235/04 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5004 (2013.01); C07D 213/02 (2013.01); C07D 233/54 (2013.01); C07D 235/04 (2013.01); C07D 401/04 (2013.01); C09K 11/06 (2013.01); H01L 51/5016 (2013.01); H01L 51/5024 (2013.01); H05B 33/14 (2013.01); H01L 51/006 (2013.01); H01L 51/0054 (2013.01); H01L 51/0067 (2013.01); H01L 51/0071 (2013.01); H01L 51/0072 (2013.01); H01L 51/0074 (2013.01); H01L 51/0081 (2013.01); H01L 51/0085 (2013.01); H01L 51/0087 (2013.01); H01L 51/0094 (2013.01); H01L 2251/5376 (2013.01); H01L 2251/5384 (2013.01); H01L 2251/552 (2013.01);
Abstract

An OLED device includes, in order, an electron blocking layer, an organic emissive layer, and a hole blocking layer. Its organic emissive layer contains at least four components: an electron transporting compound, a host, a hole transporting compound, and an emitting compound capable of phosphorescence emission at room temperature. The emitting compound has HOMO energy level of 5.2 eV or lower and a LUMO energy level of 2.5 eV or higher.

Find Patent Forward Citations

Adamovich, Vadim. (2019). Efficient organic electroluminescent devices (U.S. Patent No. 10256427). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10256427

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

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